[www-releases] r275092 - Add 3.8.1 documentation
Tom Stellard via llvm-commits
llvm-commits at lists.llvm.org
Mon Jul 11 12:36:15 PDT 2016
Added: www-releases/trunk/3.8.1/docs/_static/searchtools.js
URL: http://llvm.org/viewvc/llvm-project/www-releases/trunk/3.8.1/docs/_static/searchtools.js?rev=275092&view=auto
==============================================================================
--- www-releases/trunk/3.8.1/docs/_static/searchtools.js (added)
+++ www-releases/trunk/3.8.1/docs/_static/searchtools.js Mon Jul 11 14:36:11 2016
@@ -0,0 +1,622 @@
+/*
+ * searchtools.js_t
+ * ~~~~~~~~~~~~~~~~
+ *
+ * Sphinx JavaScript utilties for the full-text search.
+ *
+ * :copyright: Copyright 2007-2014 by the Sphinx team, see AUTHORS.
+ * :license: BSD, see LICENSE for details.
+ *
+ */
+
+
+/**
+ * Porter Stemmer
+ */
+var Stemmer = function() {
+
+ var step2list = {
+ ational: 'ate',
+ tional: 'tion',
+ enci: 'ence',
+ anci: 'ance',
+ izer: 'ize',
+ bli: 'ble',
+ alli: 'al',
+ entli: 'ent',
+ eli: 'e',
+ ousli: 'ous',
+ ization: 'ize',
+ ation: 'ate',
+ ator: 'ate',
+ alism: 'al',
+ iveness: 'ive',
+ fulness: 'ful',
+ ousness: 'ous',
+ aliti: 'al',
+ iviti: 'ive',
+ biliti: 'ble',
+ logi: 'log'
+ };
+
+ var step3list = {
+ icate: 'ic',
+ ative: '',
+ alize: 'al',
+ iciti: 'ic',
+ ical: 'ic',
+ ful: '',
+ ness: ''
+ };
+
+ var c = "[^aeiou]"; // consonant
+ var v = "[aeiouy]"; // vowel
+ var C = c + "[^aeiouy]*"; // consonant sequence
+ var V = v + "[aeiou]*"; // vowel sequence
+
+ var mgr0 = "^(" + C + ")?" + V + C; // [C]VC... is m>0
+ var meq1 = "^(" + C + ")?" + V + C + "(" + V + ")?$"; // [C]VC[V] is m=1
+ var mgr1 = "^(" + C + ")?" + V + C + V + C; // [C]VCVC... is m>1
+ var s_v = "^(" + C + ")?" + v; // vowel in stem
+
+ this.stemWord = function (w) {
+ var stem;
+ var suffix;
+ var firstch;
+ var origword = w;
+
+ if (w.length < 3)
+ return w;
+
+ var re;
+ var re2;
+ var re3;
+ var re4;
+
+ firstch = w.substr(0,1);
+ if (firstch == "y")
+ w = firstch.toUpperCase() + w.substr(1);
+
+ // Step 1a
+ re = /^(.+?)(ss|i)es$/;
+ re2 = /^(.+?)([^s])s$/;
+
+ if (re.test(w))
+ w = w.replace(re,"$1$2");
+ else if (re2.test(w))
+ w = w.replace(re2,"$1$2");
+
+ // Step 1b
+ re = /^(.+?)eed$/;
+ re2 = /^(.+?)(ed|ing)$/;
+ if (re.test(w)) {
+ var fp = re.exec(w);
+ re = new RegExp(mgr0);
+ if (re.test(fp[1])) {
+ re = /.$/;
+ w = w.replace(re,"");
+ }
+ }
+ else if (re2.test(w)) {
+ var fp = re2.exec(w);
+ stem = fp[1];
+ re2 = new RegExp(s_v);
+ if (re2.test(stem)) {
+ w = stem;
+ re2 = /(at|bl|iz)$/;
+ re3 = new RegExp("([^aeiouylsz])\\1$");
+ re4 = new RegExp("^" + C + v + "[^aeiouwxy]$");
+ if (re2.test(w))
+ w = w + "e";
+ else if (re3.test(w)) {
+ re = /.$/;
+ w = w.replace(re,"");
+ }
+ else if (re4.test(w))
+ w = w + "e";
+ }
+ }
+
+ // Step 1c
+ re = /^(.+?)y$/;
+ if (re.test(w)) {
+ var fp = re.exec(w);
+ stem = fp[1];
+ re = new RegExp(s_v);
+ if (re.test(stem))
+ w = stem + "i";
+ }
+
+ // Step 2
+ re = /^(.+?)(ational|tional|enci|anci|izer|bli|alli|entli|eli|ousli|ization|ation|ator|alism|iveness|fulness|ousness|aliti|iviti|biliti|logi)$/;
+ if (re.test(w)) {
+ var fp = re.exec(w);
+ stem = fp[1];
+ suffix = fp[2];
+ re = new RegExp(mgr0);
+ if (re.test(stem))
+ w = stem + step2list[suffix];
+ }
+
+ // Step 3
+ re = /^(.+?)(icate|ative|alize|iciti|ical|ful|ness)$/;
+ if (re.test(w)) {
+ var fp = re.exec(w);
+ stem = fp[1];
+ suffix = fp[2];
+ re = new RegExp(mgr0);
+ if (re.test(stem))
+ w = stem + step3list[suffix];
+ }
+
+ // Step 4
+ re = /^(.+?)(al|ance|ence|er|ic|able|ible|ant|ement|ment|ent|ou|ism|ate|iti|ous|ive|ize)$/;
+ re2 = /^(.+?)(s|t)(ion)$/;
+ if (re.test(w)) {
+ var fp = re.exec(w);
+ stem = fp[1];
+ re = new RegExp(mgr1);
+ if (re.test(stem))
+ w = stem;
+ }
+ else if (re2.test(w)) {
+ var fp = re2.exec(w);
+ stem = fp[1] + fp[2];
+ re2 = new RegExp(mgr1);
+ if (re2.test(stem))
+ w = stem;
+ }
+
+ // Step 5
+ re = /^(.+?)e$/;
+ if (re.test(w)) {
+ var fp = re.exec(w);
+ stem = fp[1];
+ re = new RegExp(mgr1);
+ re2 = new RegExp(meq1);
+ re3 = new RegExp("^" + C + v + "[^aeiouwxy]$");
+ if (re.test(stem) || (re2.test(stem) && !(re3.test(stem))))
+ w = stem;
+ }
+ re = /ll$/;
+ re2 = new RegExp(mgr1);
+ if (re.test(w) && re2.test(w)) {
+ re = /.$/;
+ w = w.replace(re,"");
+ }
+
+ // and turn initial Y back to y
+ if (firstch == "y")
+ w = firstch.toLowerCase() + w.substr(1);
+ return w;
+ }
+}
+
+
+
+/**
+ * Simple result scoring code.
+ */
+var Scorer = {
+ // Implement the following function to further tweak the score for each result
+ // The function takes a result array [filename, title, anchor, descr, score]
+ // and returns the new score.
+ /*
+ score: function(result) {
+ return result[4];
+ },
+ */
+
+ // query matches the full name of an object
+ objNameMatch: 11,
+ // or matches in the last dotted part of the object name
+ objPartialMatch: 6,
+ // Additive scores depending on the priority of the object
+ objPrio: {0: 15, // used to be importantResults
+ 1: 5, // used to be objectResults
+ 2: -5}, // used to be unimportantResults
+ // Used when the priority is not in the mapping.
+ objPrioDefault: 0,
+
+ // query found in title
+ title: 15,
+ // query found in terms
+ term: 5
+};
+
+
+/**
+ * Search Module
+ */
+var Search = {
+
+ _index : null,
+ _queued_query : null,
+ _pulse_status : -1,
+
+ init : function() {
+ var params = $.getQueryParameters();
+ if (params.q) {
+ var query = params.q[0];
+ $('input[name="q"]')[0].value = query;
+ this.performSearch(query);
+ }
+ },
+
+ loadIndex : function(url) {
+ $.ajax({type: "GET", url: url, data: null,
+ dataType: "script", cache: true,
+ complete: function(jqxhr, textstatus) {
+ if (textstatus != "success") {
+ document.getElementById("searchindexloader").src = url;
+ }
+ }});
+ },
+
+ setIndex : function(index) {
+ var q;
+ this._index = index;
+ if ((q = this._queued_query) !== null) {
+ this._queued_query = null;
+ Search.query(q);
+ }
+ },
+
+ hasIndex : function() {
+ return this._index !== null;
+ },
+
+ deferQuery : function(query) {
+ this._queued_query = query;
+ },
+
+ stopPulse : function() {
+ this._pulse_status = 0;
+ },
+
+ startPulse : function() {
+ if (this._pulse_status >= 0)
+ return;
+ function pulse() {
+ var i;
+ Search._pulse_status = (Search._pulse_status + 1) % 4;
+ var dotString = '';
+ for (i = 0; i < Search._pulse_status; i++)
+ dotString += '.';
+ Search.dots.text(dotString);
+ if (Search._pulse_status > -1)
+ window.setTimeout(pulse, 500);
+ }
+ pulse();
+ },
+
+ /**
+ * perform a search for something (or wait until index is loaded)
+ */
+ performSearch : function(query) {
+ // create the required interface elements
+ this.out = $('#search-results');
+ this.title = $('<h2>' + _('Searching') + '</h2>').appendTo(this.out);
+ this.dots = $('<span></span>').appendTo(this.title);
+ this.status = $('<p style="display: none"></p>').appendTo(this.out);
+ this.output = $('<ul class="search"/>').appendTo(this.out);
+
+ $('#search-progress').text(_('Preparing search...'));
+ this.startPulse();
+
+ // index already loaded, the browser was quick!
+ if (this.hasIndex())
+ this.query(query);
+ else
+ this.deferQuery(query);
+ },
+
+ /**
+ * execute search (requires search index to be loaded)
+ */
+ query : function(query) {
+ var i;
+ var stopwords = ["a","and","are","as","at","be","but","by","for","if","in","into","is","it","near","no","not","of","on","or","such","that","the","their","then","there","these","they","this","to","was","will","with"];
+
+ // stem the searchterms and add them to the correct list
+ var stemmer = new Stemmer();
+ var searchterms = [];
+ var excluded = [];
+ var hlterms = [];
+ var tmp = query.split(/\s+/);
+ var objectterms = [];
+ for (i = 0; i < tmp.length; i++) {
+ if (tmp[i] !== "") {
+ objectterms.push(tmp[i].toLowerCase());
+ }
+
+ if ($u.indexOf(stopwords, tmp[i].toLowerCase()) != -1 || tmp[i].match(/^\d+$/) ||
+ tmp[i] === "") {
+ // skip this "word"
+ continue;
+ }
+ // stem the word
+ var word = stemmer.stemWord(tmp[i].toLowerCase());
+ var toAppend;
+ // select the correct list
+ if (word[0] == '-') {
+ toAppend = excluded;
+ word = word.substr(1);
+ }
+ else {
+ toAppend = searchterms;
+ hlterms.push(tmp[i].toLowerCase());
+ }
+ // only add if not already in the list
+ if (!$u.contains(toAppend, word))
+ toAppend.push(word);
+ }
+ var highlightstring = '?highlight=' + $.urlencode(hlterms.join(" "));
+
+ // console.debug('SEARCH: searching for:');
+ // console.info('required: ', searchterms);
+ // console.info('excluded: ', excluded);
+
+ // prepare search
+ var terms = this._index.terms;
+ var titleterms = this._index.titleterms;
+
+ // array of [filename, title, anchor, descr, score]
+ var results = [];
+ $('#search-progress').empty();
+
+ // lookup as object
+ for (i = 0; i < objectterms.length; i++) {
+ var others = [].concat(objectterms.slice(0, i),
+ objectterms.slice(i+1, objectterms.length));
+ results = results.concat(this.performObjectSearch(objectterms[i], others));
+ }
+
+ // lookup as search terms in fulltext
+ results = results.concat(this.performTermsSearch(searchterms, excluded, terms, Scorer.term))
+ .concat(this.performTermsSearch(searchterms, excluded, titleterms, Scorer.title));
+
+ // let the scorer override scores with a custom scoring function
+ if (Scorer.score) {
+ for (i = 0; i < results.length; i++)
+ results[i][4] = Scorer.score(results[i]);
+ }
+
+ // now sort the results by score (in opposite order of appearance, since the
+ // display function below uses pop() to retrieve items) and then
+ // alphabetically
+ results.sort(function(a, b) {
+ var left = a[4];
+ var right = b[4];
+ if (left > right) {
+ return 1;
+ } else if (left < right) {
+ return -1;
+ } else {
+ // same score: sort alphabetically
+ left = a[1].toLowerCase();
+ right = b[1].toLowerCase();
+ return (left > right) ? -1 : ((left < right) ? 1 : 0);
+ }
+ });
+
+ // for debugging
+ //Search.lastresults = results.slice(); // a copy
+ //console.info('search results:', Search.lastresults);
+
+ // print the results
+ var resultCount = results.length;
+ function displayNextItem() {
+ // results left, load the summary and display it
+ if (results.length) {
+ var item = results.pop();
+ var listItem = $('<li style="display:none"></li>');
+ if (DOCUMENTATION_OPTIONS.FILE_SUFFIX === '') {
+ // dirhtml builder
+ var dirname = item[0] + '/';
+ if (dirname.match(/\/index\/$/)) {
+ dirname = dirname.substring(0, dirname.length-6);
+ } else if (dirname == 'index/') {
+ dirname = '';
+ }
+ listItem.append($('<a/>').attr('href',
+ DOCUMENTATION_OPTIONS.URL_ROOT + dirname +
+ highlightstring + item[2]).html(item[1]));
+ } else {
+ // normal html builders
+ listItem.append($('<a/>').attr('href',
+ item[0] + DOCUMENTATION_OPTIONS.FILE_SUFFIX +
+ highlightstring + item[2]).html(item[1]));
+ }
+ if (item[3]) {
+ listItem.append($('<span> (' + item[3] + ')</span>'));
+ Search.output.append(listItem);
+ listItem.slideDown(5, function() {
+ displayNextItem();
+ });
+ } else if (DOCUMENTATION_OPTIONS.HAS_SOURCE) {
+ $.ajax({url: DOCUMENTATION_OPTIONS.URL_ROOT + '_sources/' + item[0] + '.txt',
+ dataType: "text",
+ complete: function(jqxhr, textstatus) {
+ var data = jqxhr.responseText;
+ if (data !== '') {
+ listItem.append(Search.makeSearchSummary(data, searchterms, hlterms));
+ }
+ Search.output.append(listItem);
+ listItem.slideDown(5, function() {
+ displayNextItem();
+ });
+ }});
+ } else {
+ // no source available, just display title
+ Search.output.append(listItem);
+ listItem.slideDown(5, function() {
+ displayNextItem();
+ });
+ }
+ }
+ // search finished, update title and status message
+ else {
+ Search.stopPulse();
+ Search.title.text(_('Search Results'));
+ if (!resultCount)
+ Search.status.text(_('Your search did not match any documents. Please make sure that all words are spelled correctly and that you\'ve selected enough categories.'));
+ else
+ Search.status.text(_('Search finished, found %s page(s) matching the search query.').replace('%s', resultCount));
+ Search.status.fadeIn(500);
+ }
+ }
+ displayNextItem();
+ },
+
+ /**
+ * search for object names
+ */
+ performObjectSearch : function(object, otherterms) {
+ var filenames = this._index.filenames;
+ var objects = this._index.objects;
+ var objnames = this._index.objnames;
+ var titles = this._index.titles;
+
+ var i;
+ var results = [];
+
+ for (var prefix in objects) {
+ for (var name in objects[prefix]) {
+ var fullname = (prefix ? prefix + '.' : '') + name;
+ if (fullname.toLowerCase().indexOf(object) > -1) {
+ var score = 0;
+ var parts = fullname.split('.');
+ // check for different match types: exact matches of full name or
+ // "last name" (i.e. last dotted part)
+ if (fullname == object || parts[parts.length - 1] == object) {
+ score += Scorer.objNameMatch;
+ // matches in last name
+ } else if (parts[parts.length - 1].indexOf(object) > -1) {
+ score += Scorer.objPartialMatch;
+ }
+ var match = objects[prefix][name];
+ var objname = objnames[match[1]][2];
+ var title = titles[match[0]];
+ // If more than one term searched for, we require other words to be
+ // found in the name/title/description
+ if (otherterms.length > 0) {
+ var haystack = (prefix + ' ' + name + ' ' +
+ objname + ' ' + title).toLowerCase();
+ var allfound = true;
+ for (i = 0; i < otherterms.length; i++) {
+ if (haystack.indexOf(otherterms[i]) == -1) {
+ allfound = false;
+ break;
+ }
+ }
+ if (!allfound) {
+ continue;
+ }
+ }
+ var descr = objname + _(', in ') + title;
+
+ var anchor = match[3];
+ if (anchor === '')
+ anchor = fullname;
+ else if (anchor == '-')
+ anchor = objnames[match[1]][1] + '-' + fullname;
+ // add custom score for some objects according to scorer
+ if (Scorer.objPrio.hasOwnProperty(match[2])) {
+ score += Scorer.objPrio[match[2]];
+ } else {
+ score += Scorer.objPrioDefault;
+ }
+ results.push([filenames[match[0]], fullname, '#'+anchor, descr, score]);
+ }
+ }
+ }
+
+ return results;
+ },
+
+ /**
+ * search for full-text terms in the index
+ */
+ performTermsSearch : function(searchterms, excluded, terms, score) {
+ var filenames = this._index.filenames;
+ var titles = this._index.titles;
+
+ var i, j, file, files;
+ var fileMap = {};
+ var results = [];
+
+ // perform the search on the required terms
+ for (i = 0; i < searchterms.length; i++) {
+ var word = searchterms[i];
+ // no match but word was a required one
+ if ((files = terms[word]) === undefined)
+ break;
+ if (files.length === undefined) {
+ files = [files];
+ }
+ // create the mapping
+ for (j = 0; j < files.length; j++) {
+ file = files[j];
+ if (file in fileMap)
+ fileMap[file].push(word);
+ else
+ fileMap[file] = [word];
+ }
+ }
+
+ // now check if the files don't contain excluded terms
+ for (file in fileMap) {
+ var valid = true;
+
+ // check if all requirements are matched
+ if (fileMap[file].length != searchterms.length)
+ continue;
+
+ // ensure that none of the excluded terms is in the search result
+ for (i = 0; i < excluded.length; i++) {
+ if (terms[excluded[i]] == file ||
+ $u.contains(terms[excluded[i]] || [], file)) {
+ valid = false;
+ break;
+ }
+ }
+
+ // if we have still a valid result we can add it to the result list
+ if (valid) {
+ results.push([filenames[file], titles[file], '', null, score]);
+ }
+ }
+ return results;
+ },
+
+ /**
+ * helper function to return a node containing the
+ * search summary for a given text. keywords is a list
+ * of stemmed words, hlwords is the list of normal, unstemmed
+ * words. the first one is used to find the occurance, the
+ * latter for highlighting it.
+ */
+ makeSearchSummary : function(text, keywords, hlwords) {
+ var textLower = text.toLowerCase();
+ var start = 0;
+ $.each(keywords, function() {
+ var i = textLower.indexOf(this.toLowerCase());
+ if (i > -1)
+ start = i;
+ });
+ start = Math.max(start - 120, 0);
+ var excerpt = ((start > 0) ? '...' : '') +
+ $.trim(text.substr(start, 240)) +
+ ((start + 240 - text.length) ? '...' : '');
+ var rv = $('<div class="context"></div>').text(excerpt);
+ $.each(hlwords, function() {
+ rv = rv.highlightText(this, 'highlighted');
+ });
+ return rv;
+ }
+};
+
+$(document).ready(function() {
+ Search.init();
+});
\ No newline at end of file
Added: www-releases/trunk/3.8.1/docs/_static/underscore.js
URL: http://llvm.org/viewvc/llvm-project/www-releases/trunk/3.8.1/docs/_static/underscore.js?rev=275092&view=auto
==============================================================================
--- www-releases/trunk/3.8.1/docs/_static/underscore.js (added)
+++ www-releases/trunk/3.8.1/docs/_static/underscore.js Mon Jul 11 14:36:11 2016
@@ -0,0 +1,31 @@
+// Underscore.js 1.3.1
+// (c) 2009-2012 Jeremy Ashkenas, DocumentCloud Inc.
+// Underscore is freely distributable under the MIT license.
+// Portions of Underscore are inspired or borrowed from Prototype,
+// Oliver Steele's Functional, and John Resig's Micro-Templating.
+// For all details and documentation:
+// http://documentcloud.github.com/underscore
+(function(){function q(a,c,d){if(a===c)return a!==0||1/a==1/c;if(a==null||c==null)return a===c;if(a._chain)a=a._wrapped;if(c._chain)c=c._wrapped;if(a.isEqual&&b.isFunction(a.isEqual))return a.isEqual(c);if(c.isEqual&&b.isFunction(c.isEqual))return c.isEqual(a);var e=l.call(a);if(e!=l.call(c))return false;switch(e){case "[object String]":return a==String(c);case "[object Number]":return a!=+a?c!=+c:a==0?1/a==1/c:a==+c;case "[object Date]":case "[object Boolean]":return+a==+c;case "[object RegExp]":return a.source==
+c.source&&a.global==c.global&&a.multiline==c.multiline&&a.ignoreCase==c.ignoreCase}if(typeof a!="object"||typeof c!="object")return false;for(var f=d.length;f--;)if(d[f]==a)return true;d.push(a);var f=0,g=true;if(e=="[object Array]"){if(f=a.length,g=f==c.length)for(;f--;)if(!(g=f in a==f in c&&q(a[f],c[f],d)))break}else{if("constructor"in a!="constructor"in c||a.constructor!=c.constructor)return false;for(var h in a)if(b.has(a,h)&&(f++,!(g=b.has(c,h)&&q(a[h],c[h],d))))break;if(g){for(h in c)if(b.has(c,
+h)&&!f--)break;g=!f}}d.pop();return g}var r=this,G=r._,n={},k=Array.prototype,o=Object.prototype,i=k.slice,H=k.unshift,l=o.toString,I=o.hasOwnProperty,w=k.forEach,x=k.map,y=k.reduce,z=k.reduceRight,A=k.filter,B=k.every,C=k.some,p=k.indexOf,D=k.lastIndexOf,o=Array.isArray,J=Object.keys,s=Function.prototype.bind,b=function(a){return new m(a)};if(typeof exports!=="undefined"){if(typeof module!=="undefined"&&module.exports)exports=module.exports=b;exports._=b}else r._=b;b.VERSION="1.3.1";var j=b.each=
+b.forEach=function(a,c,d){if(a!=null)if(w&&a.forEach===w)a.forEach(c,d);else if(a.length===+a.length)for(var e=0,f=a.length;e<f;e++){if(e in a&&c.call(d,a[e],e,a)===n)break}else for(e in a)if(b.has(a,e)&&c.call(d,a[e],e,a)===n)break};b.map=b.collect=function(a,c,b){var e=[];if(a==null)return e;if(x&&a.map===x)return a.map(c,b);j(a,function(a,g,h){e[e.length]=c.call(b,a,g,h)});if(a.length===+a.length)e.length=a.length;return e};b.reduce=b.foldl=b.inject=function(a,c,d,e){var f=arguments.length>2;a==
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+b.isRegExp=function(a){return l.call(a)=="[object RegExp]"};b.isNull=function(a){return a===null};b.isUndefined=function(a){return a===void 0};b.has=function(a,b){return I.call(a,b)};b.noConflict=function(){r._=G;return this};b.identity=function(a){return a};b.times=function(a,b,d){for(var e=0;e<a;e++)b.call(d,e)};b.escape=function(a){return(""+a).replace(/&/g,"&").replace(/</g,"<").replace(/>/g,">").replace(/"/g,""").replace(/'/g,"'").replace(/\//g,"/")};b.mixin=function(a){j(b.functions(a),
+function(c){K(c,b[c]=a[c])})};var L=0;b.uniqueId=function(a){var b=L++;return a?a+b:b};b.templateSettings={evaluate:/<%([\s\S]+?)%>/g,interpolate:/<%=([\s\S]+?)%>/g,escape:/<%-([\s\S]+?)%>/g};var t=/.^/,u=function(a){return a.replace(/\\\\/g,"\\").replace(/\\'/g,"'")};b.template=function(a,c){var d=b.templateSettings,d="var __p=[],print=function(){__p.push.apply(__p,arguments);};with(obj||{}){__p.push('"+a.replace(/\\/g,"\\\\").replace(/'/g,"\\'").replace(d.escape||t,function(a,b){return"',_.escape("+
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URL: http://llvm.org/viewvc/llvm-project/www-releases/trunk/3.8.1/docs/_static/websupport.js?rev=275092&view=auto
==============================================================================
--- www-releases/trunk/3.8.1/docs/_static/websupport.js (added)
+++ www-releases/trunk/3.8.1/docs/_static/websupport.js Mon Jul 11 14:36:11 2016
@@ -0,0 +1,808 @@
+/*
+ * websupport.js
+ * ~~~~~~~~~~~~~
+ *
+ * sphinx.websupport utilties for all documentation.
+ *
+ * :copyright: Copyright 2007-2014 by the Sphinx team, see AUTHORS.
+ * :license: BSD, see LICENSE for details.
+ *
+ */
+
+(function($) {
+ $.fn.autogrow = function() {
+ return this.each(function() {
+ var textarea = this;
+
+ $.fn.autogrow.resize(textarea);
+
+ $(textarea)
+ .focus(function() {
+ textarea.interval = setInterval(function() {
+ $.fn.autogrow.resize(textarea);
+ }, 500);
+ })
+ .blur(function() {
+ clearInterval(textarea.interval);
+ });
+ });
+ };
+
+ $.fn.autogrow.resize = function(textarea) {
+ var lineHeight = parseInt($(textarea).css('line-height'), 10);
+ var lines = textarea.value.split('\n');
+ var columns = textarea.cols;
+ var lineCount = 0;
+ $.each(lines, function() {
+ lineCount += Math.ceil(this.length / columns) || 1;
+ });
+ var height = lineHeight * (lineCount + 1);
+ $(textarea).css('height', height);
+ };
+})(jQuery);
+
+(function($) {
+ var comp, by;
+
+ function init() {
+ initEvents();
+ initComparator();
+ }
+
+ function initEvents() {
+ $('a.comment-close').live("click", function(event) {
+ event.preventDefault();
+ hide($(this).attr('id').substring(2));
+ });
+ $('a.vote').live("click", function(event) {
+ event.preventDefault();
+ handleVote($(this));
+ });
+ $('a.reply').live("click", function(event) {
+ event.preventDefault();
+ openReply($(this).attr('id').substring(2));
+ });
+ $('a.close-reply').live("click", function(event) {
+ event.preventDefault();
+ closeReply($(this).attr('id').substring(2));
+ });
+ $('a.sort-option').live("click", function(event) {
+ event.preventDefault();
+ handleReSort($(this));
+ });
+ $('a.show-proposal').live("click", function(event) {
+ event.preventDefault();
+ showProposal($(this).attr('id').substring(2));
+ });
+ $('a.hide-proposal').live("click", function(event) {
+ event.preventDefault();
+ hideProposal($(this).attr('id').substring(2));
+ });
+ $('a.show-propose-change').live("click", function(event) {
+ event.preventDefault();
+ showProposeChange($(this).attr('id').substring(2));
+ });
+ $('a.hide-propose-change').live("click", function(event) {
+ event.preventDefault();
+ hideProposeChange($(this).attr('id').substring(2));
+ });
+ $('a.accept-comment').live("click", function(event) {
+ event.preventDefault();
+ acceptComment($(this).attr('id').substring(2));
+ });
+ $('a.delete-comment').live("click", function(event) {
+ event.preventDefault();
+ deleteComment($(this).attr('id').substring(2));
+ });
+ $('a.comment-markup').live("click", function(event) {
+ event.preventDefault();
+ toggleCommentMarkupBox($(this).attr('id').substring(2));
+ });
+ }
+
+ /**
+ * Set comp, which is a comparator function used for sorting and
+ * inserting comments into the list.
+ */
+ function setComparator() {
+ // If the first three letters are "asc", sort in ascending order
+ // and remove the prefix.
+ if (by.substring(0,3) == 'asc') {
+ var i = by.substring(3);
+ comp = function(a, b) { return a[i] - b[i]; };
+ } else {
+ // Otherwise sort in descending order.
+ comp = function(a, b) { return b[by] - a[by]; };
+ }
+
+ // Reset link styles and format the selected sort option.
+ $('a.sel').attr('href', '#').removeClass('sel');
+ $('a.by' + by).removeAttr('href').addClass('sel');
+ }
+
+ /**
+ * Create a comp function. If the user has preferences stored in
+ * the sortBy cookie, use those, otherwise use the default.
+ */
+ function initComparator() {
+ by = 'rating'; // Default to sort by rating.
+ // If the sortBy cookie is set, use that instead.
+ if (document.cookie.length > 0) {
+ var start = document.cookie.indexOf('sortBy=');
+ if (start != -1) {
+ start = start + 7;
+ var end = document.cookie.indexOf(";", start);
+ if (end == -1) {
+ end = document.cookie.length;
+ by = unescape(document.cookie.substring(start, end));
+ }
+ }
+ }
+ setComparator();
+ }
+
+ /**
+ * Show a comment div.
+ */
+ function show(id) {
+ $('#ao' + id).hide();
+ $('#ah' + id).show();
+ var context = $.extend({id: id}, opts);
+ var popup = $(renderTemplate(popupTemplate, context)).hide();
+ popup.find('textarea[name="proposal"]').hide();
+ popup.find('a.by' + by).addClass('sel');
+ var form = popup.find('#cf' + id);
+ form.submit(function(event) {
+ event.preventDefault();
+ addComment(form);
+ });
+ $('#s' + id).after(popup);
+ popup.slideDown('fast', function() {
+ getComments(id);
+ });
+ }
+
+ /**
+ * Hide a comment div.
+ */
+ function hide(id) {
+ $('#ah' + id).hide();
+ $('#ao' + id).show();
+ var div = $('#sc' + id);
+ div.slideUp('fast', function() {
+ div.remove();
+ });
+ }
+
+ /**
+ * Perform an ajax request to get comments for a node
+ * and insert the comments into the comments tree.
+ */
+ function getComments(id) {
+ $.ajax({
+ type: 'GET',
+ url: opts.getCommentsURL,
+ data: {node: id},
+ success: function(data, textStatus, request) {
+ var ul = $('#cl' + id);
+ var speed = 100;
+ $('#cf' + id)
+ .find('textarea[name="proposal"]')
+ .data('source', data.source);
+
+ if (data.comments.length === 0) {
+ ul.html('<li>No comments yet.</li>');
+ ul.data('empty', true);
+ } else {
+ // If there are comments, sort them and put them in the list.
+ var comments = sortComments(data.comments);
+ speed = data.comments.length * 100;
+ appendComments(comments, ul);
+ ul.data('empty', false);
+ }
+ $('#cn' + id).slideUp(speed + 200);
+ ul.slideDown(speed);
+ },
+ error: function(request, textStatus, error) {
+ showError('Oops, there was a problem retrieving the comments.');
+ },
+ dataType: 'json'
+ });
+ }
+
+ /**
+ * Add a comment via ajax and insert the comment into the comment tree.
+ */
+ function addComment(form) {
+ var node_id = form.find('input[name="node"]').val();
+ var parent_id = form.find('input[name="parent"]').val();
+ var text = form.find('textarea[name="comment"]').val();
+ var proposal = form.find('textarea[name="proposal"]').val();
+
+ if (text == '') {
+ showError('Please enter a comment.');
+ return;
+ }
+
+ // Disable the form that is being submitted.
+ form.find('textarea,input').attr('disabled', 'disabled');
+
+ // Send the comment to the server.
+ $.ajax({
+ type: "POST",
+ url: opts.addCommentURL,
+ dataType: 'json',
+ data: {
+ node: node_id,
+ parent: parent_id,
+ text: text,
+ proposal: proposal
+ },
+ success: function(data, textStatus, error) {
+ // Reset the form.
+ if (node_id) {
+ hideProposeChange(node_id);
+ }
+ form.find('textarea')
+ .val('')
+ .add(form.find('input'))
+ .removeAttr('disabled');
+ var ul = $('#cl' + (node_id || parent_id));
+ if (ul.data('empty')) {
+ $(ul).empty();
+ ul.data('empty', false);
+ }
+ insertComment(data.comment);
+ var ao = $('#ao' + node_id);
+ ao.find('img').attr({'src': opts.commentBrightImage});
+ if (node_id) {
+ // if this was a "root" comment, remove the commenting box
+ // (the user can get it back by reopening the comment popup)
+ $('#ca' + node_id).slideUp();
+ }
+ },
+ error: function(request, textStatus, error) {
+ form.find('textarea,input').removeAttr('disabled');
+ showError('Oops, there was a problem adding the comment.');
+ }
+ });
+ }
+
+ /**
+ * Recursively append comments to the main comment list and children
+ * lists, creating the comment tree.
+ */
+ function appendComments(comments, ul) {
+ $.each(comments, function() {
+ var div = createCommentDiv(this);
+ ul.append($(document.createElement('li')).html(div));
+ appendComments(this.children, div.find('ul.comment-children'));
+ // To avoid stagnating data, don't store the comments children in data.
+ this.children = null;
+ div.data('comment', this);
+ });
+ }
+
+ /**
+ * After adding a new comment, it must be inserted in the correct
+ * location in the comment tree.
+ */
+ function insertComment(comment) {
+ var div = createCommentDiv(comment);
+
+ // To avoid stagnating data, don't store the comments children in data.
+ comment.children = null;
+ div.data('comment', comment);
+
+ var ul = $('#cl' + (comment.node || comment.parent));
+ var siblings = getChildren(ul);
+
+ var li = $(document.createElement('li'));
+ li.hide();
+
+ // Determine where in the parents children list to insert this comment.
+ for(i=0; i < siblings.length; i++) {
+ if (comp(comment, siblings[i]) <= 0) {
+ $('#cd' + siblings[i].id)
+ .parent()
+ .before(li.html(div));
+ li.slideDown('fast');
+ return;
+ }
+ }
+
+ // If we get here, this comment rates lower than all the others,
+ // or it is the only comment in the list.
+ ul.append(li.html(div));
+ li.slideDown('fast');
+ }
+
+ function acceptComment(id) {
+ $.ajax({
+ type: 'POST',
+ url: opts.acceptCommentURL,
+ data: {id: id},
+ success: function(data, textStatus, request) {
+ $('#cm' + id).fadeOut('fast');
+ $('#cd' + id).removeClass('moderate');
+ },
+ error: function(request, textStatus, error) {
+ showError('Oops, there was a problem accepting the comment.');
+ }
+ });
+ }
+
+ function deleteComment(id) {
+ $.ajax({
+ type: 'POST',
+ url: opts.deleteCommentURL,
+ data: {id: id},
+ success: function(data, textStatus, request) {
+ var div = $('#cd' + id);
+ if (data == 'delete') {
+ // Moderator mode: remove the comment and all children immediately
+ div.slideUp('fast', function() {
+ div.remove();
+ });
+ return;
+ }
+ // User mode: only mark the comment as deleted
+ div
+ .find('span.user-id:first')
+ .text('[deleted]').end()
+ .find('div.comment-text:first')
+ .text('[deleted]').end()
+ .find('#cm' + id + ', #dc' + id + ', #ac' + id + ', #rc' + id +
+ ', #sp' + id + ', #hp' + id + ', #cr' + id + ', #rl' + id)
+ .remove();
+ var comment = div.data('comment');
+ comment.username = '[deleted]';
+ comment.text = '[deleted]';
+ div.data('comment', comment);
+ },
+ error: function(request, textStatus, error) {
+ showError('Oops, there was a problem deleting the comment.');
+ }
+ });
+ }
+
+ function showProposal(id) {
+ $('#sp' + id).hide();
+ $('#hp' + id).show();
+ $('#pr' + id).slideDown('fast');
+ }
+
+ function hideProposal(id) {
+ $('#hp' + id).hide();
+ $('#sp' + id).show();
+ $('#pr' + id).slideUp('fast');
+ }
+
+ function showProposeChange(id) {
+ $('#pc' + id).hide();
+ $('#hc' + id).show();
+ var textarea = $('#pt' + id);
+ textarea.val(textarea.data('source'));
+ $.fn.autogrow.resize(textarea[0]);
+ textarea.slideDown('fast');
+ }
+
+ function hideProposeChange(id) {
+ $('#hc' + id).hide();
+ $('#pc' + id).show();
+ var textarea = $('#pt' + id);
+ textarea.val('').removeAttr('disabled');
+ textarea.slideUp('fast');
+ }
+
+ function toggleCommentMarkupBox(id) {
+ $('#mb' + id).toggle();
+ }
+
+ /** Handle when the user clicks on a sort by link. */
+ function handleReSort(link) {
+ var classes = link.attr('class').split(/\s+/);
+ for (var i=0; i<classes.length; i++) {
+ if (classes[i] != 'sort-option') {
+ by = classes[i].substring(2);
+ }
+ }
+ setComparator();
+ // Save/update the sortBy cookie.
+ var expiration = new Date();
+ expiration.setDate(expiration.getDate() + 365);
+ document.cookie= 'sortBy=' + escape(by) +
+ ';expires=' + expiration.toUTCString();
+ $('ul.comment-ul').each(function(index, ul) {
+ var comments = getChildren($(ul), true);
+ comments = sortComments(comments);
+ appendComments(comments, $(ul).empty());
+ });
+ }
+
+ /**
+ * Function to process a vote when a user clicks an arrow.
+ */
+ function handleVote(link) {
+ if (!opts.voting) {
+ showError("You'll need to login to vote.");
+ return;
+ }
+
+ var id = link.attr('id');
+ if (!id) {
+ // Didn't click on one of the voting arrows.
+ return;
+ }
+ // If it is an unvote, the new vote value is 0,
+ // Otherwise it's 1 for an upvote, or -1 for a downvote.
+ var value = 0;
+ if (id.charAt(1) != 'u') {
+ value = id.charAt(0) == 'u' ? 1 : -1;
+ }
+ // The data to be sent to the server.
+ var d = {
+ comment_id: id.substring(2),
+ value: value
+ };
+
+ // Swap the vote and unvote links.
+ link.hide();
+ $('#' + id.charAt(0) + (id.charAt(1) == 'u' ? 'v' : 'u') + d.comment_id)
+ .show();
+
+ // The div the comment is displayed in.
+ var div = $('div#cd' + d.comment_id);
+ var data = div.data('comment');
+
+ // If this is not an unvote, and the other vote arrow has
+ // already been pressed, unpress it.
+ if ((d.value !== 0) && (data.vote === d.value * -1)) {
+ $('#' + (d.value == 1 ? 'd' : 'u') + 'u' + d.comment_id).hide();
+ $('#' + (d.value == 1 ? 'd' : 'u') + 'v' + d.comment_id).show();
+ }
+
+ // Update the comments rating in the local data.
+ data.rating += (data.vote === 0) ? d.value : (d.value - data.vote);
+ data.vote = d.value;
+ div.data('comment', data);
+
+ // Change the rating text.
+ div.find('.rating:first')
+ .text(data.rating + ' point' + (data.rating == 1 ? '' : 's'));
+
+ // Send the vote information to the server.
+ $.ajax({
+ type: "POST",
+ url: opts.processVoteURL,
+ data: d,
+ error: function(request, textStatus, error) {
+ showError('Oops, there was a problem casting that vote.');
+ }
+ });
+ }
+
+ /**
+ * Open a reply form used to reply to an existing comment.
+ */
+ function openReply(id) {
+ // Swap out the reply link for the hide link
+ $('#rl' + id).hide();
+ $('#cr' + id).show();
+
+ // Add the reply li to the children ul.
+ var div = $(renderTemplate(replyTemplate, {id: id})).hide();
+ $('#cl' + id)
+ .prepend(div)
+ // Setup the submit handler for the reply form.
+ .find('#rf' + id)
+ .submit(function(event) {
+ event.preventDefault();
+ addComment($('#rf' + id));
+ closeReply(id);
+ })
+ .find('input[type=button]')
+ .click(function() {
+ closeReply(id);
+ });
+ div.slideDown('fast', function() {
+ $('#rf' + id).find('textarea').focus();
+ });
+ }
+
+ /**
+ * Close the reply form opened with openReply.
+ */
+ function closeReply(id) {
+ // Remove the reply div from the DOM.
+ $('#rd' + id).slideUp('fast', function() {
+ $(this).remove();
+ });
+
+ // Swap out the hide link for the reply link
+ $('#cr' + id).hide();
+ $('#rl' + id).show();
+ }
+
+ /**
+ * Recursively sort a tree of comments using the comp comparator.
+ */
+ function sortComments(comments) {
+ comments.sort(comp);
+ $.each(comments, function() {
+ this.children = sortComments(this.children);
+ });
+ return comments;
+ }
+
+ /**
+ * Get the children comments from a ul. If recursive is true,
+ * recursively include childrens' children.
+ */
+ function getChildren(ul, recursive) {
+ var children = [];
+ ul.children().children("[id^='cd']")
+ .each(function() {
+ var comment = $(this).data('comment');
+ if (recursive)
+ comment.children = getChildren($(this).find('#cl' + comment.id), true);
+ children.push(comment);
+ });
+ return children;
+ }
+
+ /** Create a div to display a comment in. */
+ function createCommentDiv(comment) {
+ if (!comment.displayed && !opts.moderator) {
+ return $('<div class="moderate">Thank you! Your comment will show up '
+ + 'once it is has been approved by a moderator.</div>');
+ }
+ // Prettify the comment rating.
+ comment.pretty_rating = comment.rating + ' point' +
+ (comment.rating == 1 ? '' : 's');
+ // Make a class (for displaying not yet moderated comments differently)
+ comment.css_class = comment.displayed ? '' : ' moderate';
+ // Create a div for this comment.
+ var context = $.extend({}, opts, comment);
+ var div = $(renderTemplate(commentTemplate, context));
+
+ // If the user has voted on this comment, highlight the correct arrow.
+ if (comment.vote) {
+ var direction = (comment.vote == 1) ? 'u' : 'd';
+ div.find('#' + direction + 'v' + comment.id).hide();
+ div.find('#' + direction + 'u' + comment.id).show();
+ }
+
+ if (opts.moderator || comment.text != '[deleted]') {
+ div.find('a.reply').show();
+ if (comment.proposal_diff)
+ div.find('#sp' + comment.id).show();
+ if (opts.moderator && !comment.displayed)
+ div.find('#cm' + comment.id).show();
+ if (opts.moderator || (opts.username == comment.username))
+ div.find('#dc' + comment.id).show();
+ }
+ return div;
+ }
+
+ /**
+ * A simple template renderer. Placeholders such as <%id%> are replaced
+ * by context['id'] with items being escaped. Placeholders such as <#id#>
+ * are not escaped.
+ */
+ function renderTemplate(template, context) {
+ var esc = $(document.createElement('div'));
+
+ function handle(ph, escape) {
+ var cur = context;
+ $.each(ph.split('.'), function() {
+ cur = cur[this];
+ });
+ return escape ? esc.text(cur || "").html() : cur;
+ }
+
+ return template.replace(/<([%#])([\w\.]*)\1>/g, function() {
+ return handle(arguments[2], arguments[1] == '%' ? true : false);
+ });
+ }
+
+ /** Flash an error message briefly. */
+ function showError(message) {
+ $(document.createElement('div')).attr({'class': 'popup-error'})
+ .append($(document.createElement('div'))
+ .attr({'class': 'error-message'}).text(message))
+ .appendTo('body')
+ .fadeIn("slow")
+ .delay(2000)
+ .fadeOut("slow");
+ }
+
+ /** Add a link the user uses to open the comments popup. */
+ $.fn.comment = function() {
+ return this.each(function() {
+ var id = $(this).attr('id').substring(1);
+ var count = COMMENT_METADATA[id];
+ var title = count + ' comment' + (count == 1 ? '' : 's');
+ var image = count > 0 ? opts.commentBrightImage : opts.commentImage;
+ var addcls = count == 0 ? ' nocomment' : '';
+ $(this)
+ .append(
+ $(document.createElement('a')).attr({
+ href: '#',
+ 'class': 'sphinx-comment-open' + addcls,
+ id: 'ao' + id
+ })
+ .append($(document.createElement('img')).attr({
+ src: image,
+ alt: 'comment',
+ title: title
+ }))
+ .click(function(event) {
+ event.preventDefault();
+ show($(this).attr('id').substring(2));
+ })
+ )
+ .append(
+ $(document.createElement('a')).attr({
+ href: '#',
+ 'class': 'sphinx-comment-close hidden',
+ id: 'ah' + id
+ })
+ .append($(document.createElement('img')).attr({
+ src: opts.closeCommentImage,
+ alt: 'close',
+ title: 'close'
+ }))
+ .click(function(event) {
+ event.preventDefault();
+ hide($(this).attr('id').substring(2));
+ })
+ );
+ });
+ };
+
+ var opts = {
+ processVoteURL: '/_process_vote',
+ addCommentURL: '/_add_comment',
+ getCommentsURL: '/_get_comments',
+ acceptCommentURL: '/_accept_comment',
+ deleteCommentURL: '/_delete_comment',
+ commentImage: '/static/_static/comment.png',
+ closeCommentImage: '/static/_static/comment-close.png',
+ loadingImage: '/static/_static/ajax-loader.gif',
+ commentBrightImage: '/static/_static/comment-bright.png',
+ upArrow: '/static/_static/up.png',
+ downArrow: '/static/_static/down.png',
+ upArrowPressed: '/static/_static/up-pressed.png',
+ downArrowPressed: '/static/_static/down-pressed.png',
+ voting: false,
+ moderator: false
+ };
+
+ if (typeof COMMENT_OPTIONS != "undefined") {
+ opts = jQuery.extend(opts, COMMENT_OPTIONS);
+ }
+
+ var popupTemplate = '\
+ <div class="sphinx-comments" id="sc<%id%>">\
+ <p class="sort-options">\
+ Sort by:\
+ <a href="#" class="sort-option byrating">best rated</a>\
+ <a href="#" class="sort-option byascage">newest</a>\
+ <a href="#" class="sort-option byage">oldest</a>\
+ </p>\
+ <div class="comment-header">Comments</div>\
+ <div class="comment-loading" id="cn<%id%>">\
+ loading comments... <img src="<%loadingImage%>" alt="" /></div>\
+ <ul id="cl<%id%>" class="comment-ul"></ul>\
+ <div id="ca<%id%>">\
+ <p class="add-a-comment">Add a comment\
+ (<a href="#" class="comment-markup" id="ab<%id%>">markup</a>):</p>\
+ <div class="comment-markup-box" id="mb<%id%>">\
+ reStructured text markup: <i>*emph*</i>, <b>**strong**</b>, \
+ <tt>``code``</tt>, \
+ code blocks: <tt>::</tt> and an indented block after blank line</div>\
+ <form method="post" id="cf<%id%>" class="comment-form" action="">\
+ <textarea name="comment" cols="80"></textarea>\
+ <p class="propose-button">\
+ <a href="#" id="pc<%id%>" class="show-propose-change">\
+ Propose a change ▹\
+ </a>\
+ <a href="#" id="hc<%id%>" class="hide-propose-change">\
+ Propose a change ▿\
+ </a>\
+ </p>\
+ <textarea name="proposal" id="pt<%id%>" cols="80"\
+ spellcheck="false"></textarea>\
+ <input type="submit" value="Add comment" />\
+ <input type="hidden" name="node" value="<%id%>" />\
+ <input type="hidden" name="parent" value="" />\
+ </form>\
+ </div>\
+ </div>';
+
+ var commentTemplate = '\
+ <div id="cd<%id%>" class="sphinx-comment<%css_class%>">\
+ <div class="vote">\
+ <div class="arrow">\
+ <a href="#" id="uv<%id%>" class="vote" title="vote up">\
+ <img src="<%upArrow%>" />\
+ </a>\
+ <a href="#" id="uu<%id%>" class="un vote" title="vote up">\
+ <img src="<%upArrowPressed%>" />\
+ </a>\
+ </div>\
+ <div class="arrow">\
+ <a href="#" id="dv<%id%>" class="vote" title="vote down">\
+ <img src="<%downArrow%>" id="da<%id%>" />\
+ </a>\
+ <a href="#" id="du<%id%>" class="un vote" title="vote down">\
+ <img src="<%downArrowPressed%>" />\
+ </a>\
+ </div>\
+ </div>\
+ <div class="comment-content">\
+ <p class="tagline comment">\
+ <span class="user-id"><%username%></span>\
+ <span class="rating"><%pretty_rating%></span>\
+ <span class="delta"><%time.delta%></span>\
+ </p>\
+ <div class="comment-text comment"><#text#></div>\
+ <p class="comment-opts comment">\
+ <a href="#" class="reply hidden" id="rl<%id%>">reply ▹</a>\
+ <a href="#" class="close-reply" id="cr<%id%>">reply ▿</a>\
+ <a href="#" id="sp<%id%>" class="show-proposal">proposal ▹</a>\
+ <a href="#" id="hp<%id%>" class="hide-proposal">proposal ▿</a>\
+ <a href="#" id="dc<%id%>" class="delete-comment hidden">delete</a>\
+ <span id="cm<%id%>" class="moderation hidden">\
+ <a href="#" id="ac<%id%>" class="accept-comment">accept</a>\
+ </span>\
+ </p>\
+ <pre class="proposal" id="pr<%id%>">\
+<#proposal_diff#>\
+ </pre>\
+ <ul class="comment-children" id="cl<%id%>"></ul>\
+ </div>\
+ <div class="clearleft"></div>\
+ </div>\
+ </div>';
+
+ var replyTemplate = '\
+ <li>\
+ <div class="reply-div" id="rd<%id%>">\
+ <form id="rf<%id%>">\
+ <textarea name="comment" cols="80"></textarea>\
+ <input type="submit" value="Add reply" />\
+ <input type="button" value="Cancel" />\
+ <input type="hidden" name="parent" value="<%id%>" />\
+ <input type="hidden" name="node" value="" />\
+ </form>\
+ </div>\
+ </li>';
+
+ $(document).ready(function() {
+ init();
+ });
+})(jQuery);
+
+$(document).ready(function() {
+ // add comment anchors for all paragraphs that are commentable
+ $('.sphinx-has-comment').comment();
+
+ // highlight search words in search results
+ $("div.context").each(function() {
+ var params = $.getQueryParameters();
+ var terms = (params.q) ? params.q[0].split(/\s+/) : [];
+ var result = $(this);
+ $.each(terms, function() {
+ result.highlightText(this.toLowerCase(), 'highlighted');
+ });
+ });
+
+ // directly open comment window if requested
+ var anchor = document.location.hash;
+ if (anchor.substring(0, 9) == '#comment-') {
+ $('#ao' + anchor.substring(9)).click();
+ document.location.hash = '#s' + anchor.substring(9);
+ }
+});
Added: www-releases/trunk/3.8.1/docs/genindex.html
URL: http://llvm.org/viewvc/llvm-project/www-releases/trunk/3.8.1/docs/genindex.html?rev=275092&view=auto
==============================================================================
--- www-releases/trunk/3.8.1/docs/genindex.html (added)
+++ www-releases/trunk/3.8.1/docs/genindex.html Mon Jul 11 14:36:11 2016
@@ -0,0 +1,2995 @@
+
+
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
+ "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
+
+
+<html xmlns="http://www.w3.org/1999/xhtml">
+ <head>
+ <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
+
+ <title>Index — LLVM 3.8 documentation</title>
+
+ <link rel="stylesheet" href="_static/llvm-theme.css" type="text/css" />
+ <link rel="stylesheet" href="_static/pygments.css" type="text/css" />
+
+ <script type="text/javascript">
+ var DOCUMENTATION_OPTIONS = {
+ URL_ROOT: './',
+ VERSION: '3.8',
+ COLLAPSE_INDEX: false,
+ FILE_SUFFIX: '.html',
+ HAS_SOURCE: true
+ };
+ </script>
+ <script type="text/javascript" src="_static/jquery.js"></script>
+ <script type="text/javascript" src="_static/underscore.js"></script>
+ <script type="text/javascript" src="_static/doctools.js"></script>
+ <link rel="top" title="LLVM 3.8 documentation" href="index.html" />
+<style type="text/css">
+ table.right { float: right; margin-left: 20px; }
+ table.right td { border: 1px solid #ccc; }
+</style>
+
+ </head>
+ <body>
+<div class="logo">
+ <a href="index.html">
+ <img src="_static/logo.png"
+ alt="LLVM Logo" width="250" height="88"/></a>
+</div>
+
+ <div class="related">
+ <h3>Navigation</h3>
+ <ul>
+ <li class="right" style="margin-right: 10px">
+ <a href="#" title="General Index"
+ accesskey="I">index</a></li>
+ <li><a href="http://llvm.org/">LLVM Home</a> | </li>
+ <li><a href="index.html">Documentation</a>»</li>
+
+ </ul>
+ </div>
+
+
+ <div class="document">
+ <div class="documentwrapper">
+ <div class="body">
+
+
+<h1 id="index">Index</h1>
+
+<div class="genindex-jumpbox">
+ <a href="#Symbols"><strong>Symbols</strong></a>
+ | <a href="#C"><strong>C</strong></a>
+ | <a href="#L"><strong>L</strong></a>
+ | <a href="#T"><strong>T</strong></a>
+
+</div>
+<h2 id="Symbols">Symbols</h2>
+<table style="width: 100%" class="indextable genindextable"><tr>
+ <td style="width: 33%" valign="top"><dl>
+
+ <dt>
+ --check-prefix prefix
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/FileCheck.html#cmdoption--check-prefix">command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ --config-prefix=NAME
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/lit.html#cmdoption--config-prefix">command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ --debug
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/lit.html#cmdoption--debug">command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ --debug-syms, -a
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/llvm-nm.html#cmdoption-llvm-nm--debug-syms">llvm-nm command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ --defined-only
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/llvm-nm.html#cmdoption-llvm-nm--defined-only">llvm-nm command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ --disable-excess-fp-precision
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/llc.html#cmdoption--disable-excess-fp-precision">command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ --disable-fp-elim
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/llc.html#cmdoption--disable-fp-elim">command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ --dynamic, -D
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/llvm-nm.html#cmdoption-llvm-nm--dynamic">llvm-nm command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ --enable-no-infs-fp-math
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/llc.html#cmdoption--enable-no-infs-fp-math">command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ --enable-no-nans-fp-math
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/llc.html#cmdoption--enable-no-nans-fp-math">command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ --enable-unsafe-fp-math
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/llc.html#cmdoption--enable-unsafe-fp-math">command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ --extern-only, -g
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/llvm-nm.html#cmdoption-llvm-nm--extern-only">llvm-nm command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ --format=format, -f format
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/llvm-nm.html#cmdoption-llvm-nm--format">llvm-nm command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ --help
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/llvm-cov.html#cmdoption-llvm-cov-gcov--help">llvm-cov-gcov command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ --implicit-check-not check-pattern
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/FileCheck.html#cmdoption--implicit-check-not">command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ --input-file filename
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/FileCheck.html#cmdoption--input-file">command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ --load=<dso_path>
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/llc.html#cmdoption--load">command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ --max-tests=N
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/lit.html#cmdoption--max-tests">command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ --max-time=N
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/lit.html#cmdoption--max-time">command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ --no-progress-bar
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/lit.html#cmdoption--no-progress-bar">command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ --no-sort, -p
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/llvm-nm.html#cmdoption-llvm-nm--no-sort">llvm-nm command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ --numeric-sort, -n, -v
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/llvm-nm.html#cmdoption-llvm-nm--numeric-sort">llvm-nm command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ --path=PATH
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/lit.html#cmdoption--path">command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ --print-file-name, -A, -o
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/llvm-nm.html#cmdoption-llvm-nm--print-file-name">llvm-nm command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ --print-machineinstrs
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/llc.html#cmdoption--print-machineinstrs">command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ --print-size, -S
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/llvm-nm.html#cmdoption-llvm-nm--print-size">llvm-nm command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ --regalloc=<allocator>
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/llc.html#cmdoption--regalloc">command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ --show-suites
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/lit.html#cmdoption--show-suites">command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ --show-tests
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/lit.html#cmdoption--show-tests">command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ --show-unsupported
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/lit.html#cmdoption--show-unsupported">command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ --show-xfail
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/lit.html#cmdoption--show-xfail">command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ --shuffle
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/lit.html#cmdoption--shuffle">command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ --size-sort
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/llvm-nm.html#cmdoption-llvm-nm--size-sort">llvm-nm command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ --spiller=<spiller>
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/llc.html#cmdoption--spiller">command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ --stats
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/llc.html#cmdoption--stats">command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ --strict-whitespace
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/FileCheck.html#cmdoption--strict-whitespace">command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ --time-passes
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/llc.html#cmdoption--time-passes">command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ --time-tests
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/lit.html#cmdoption--time-tests">command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ --undefined-only, -u
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/llvm-nm.html#cmdoption-llvm-nm--undefined-only">llvm-nm command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ --vg
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/lit.html#cmdoption--vg">command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ --vg-arg=ARG
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/lit.html#cmdoption--vg-arg">command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ --vg-leak
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/lit.html#cmdoption--vg-leak">command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ --x86-asm-syntax=[att|intel]
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/llc.html#cmdoption--x86-asm-syntax">command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -a, --all-blocks
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/llvm-cov.html#cmdoption-llvm-cov-gcov-a">llvm-cov-gcov command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -a, --show-all
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/lit.html#cmdoption-a">command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -all-functions
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/llvm-profdata.html#cmdoption-llvm-profdata-show-all-functions">llvm-profdata-show command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -arch=<name>
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/llvm-cov.html#cmdoption-llvm-cov-report-arch">llvm-cov-report command line option</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/llvm-cov.html#cmdoption-llvm-cov-show-arch">llvm-cov-show command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -asmparsernum N
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/tblgen.html#cmdoption-tblgen-asmparsernum">tblgen command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -asmwriternum N
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/tblgen.html#cmdoption-tblgen-asmwriternum">tblgen command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -B (default)
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/llvm-nm.html#cmdoption-llvm-nm-B">llvm-nm command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -b, --branch-probabilities
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/llvm-cov.html#cmdoption-llvm-cov-gcov-b">llvm-cov-gcov command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -binary (default)
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/llvm-profdata.html#cmdoption-llvm-profdata-merge-binary">llvm-profdata-merge command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -c, --branch-counts
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/llvm-cov.html#cmdoption-llvm-cov-gcov-c">llvm-cov-gcov command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -class className
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/tblgen.html#cmdoption-tblgen-class">tblgen command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -code-model=model
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/lli.html#cmdoption-code-model">command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -counts
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/llvm-profdata.html#cmdoption-llvm-profdata-show-counts">llvm-profdata-show command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -d
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/llvm-link.html#cmdoption-d">command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -D NAME, -D NAME=VALUE, --param NAME, --param NAME=VALUE
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/lit.html#cmdoption-D">command line option</a>, <a href="CommandGuide/lit.html#cmdoption-D">[1]</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -debug
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/opt.html#cmdoption-debug">command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -debug-dump=section
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/llvm-dwarfdump.html#cmdoption-debug-dump">command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -default-arch
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/llvm-symbolizer.html#cmdoption-default-arch">command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -demangle
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/llvm-symbolizer.html#cmdoption-demangle">command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -disable-excess-fp-precision
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/lli.html#cmdoption-disable-excess-fp-precision">command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -disable-inlining
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/opt.html#cmdoption-disable-inlining">command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -disable-opt
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/opt.html#cmdoption-disable-opt">command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -disable-post-RA-scheduler
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/lli.html#cmdoption-disable-post-RA-scheduler">command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -disable-spill-fusing
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/lli.html#cmdoption-disable-spill-fusing">command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -dsym-hint=<path/to/file.dSYM>
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/llvm-symbolizer.html#cmdoption-dsym-hint">command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -dump
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/llvm-bcanalyzer.html#cmdoption-llvm-bcanalyzer-dump">llvm-bcanalyzer command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -dyn-symbols
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/llvm-readobj.html#cmdoption-dyn-symbols">command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -dynamic-table
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/llvm-readobj.html#cmdoption-dynamic-table">command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -enable-no-infs-fp-math
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/lli.html#cmdoption-enable-no-infs-fp-math">command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -enable-no-nans-fp-math
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/lli.html#cmdoption-enable-no-nans-fp-math">command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -enable-unsafe-fp-math
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/lli.html#cmdoption-enable-unsafe-fp-math">command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -expand-relocs
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/llvm-readobj.html#cmdoption-expand-relocs">command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -f
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/opt.html#cmdoption-f">command line option</a>, <a href="CommandGuide/llvm-link.html#cmdoption-f">[1]</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -f, --function-summaries
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/llvm-cov.html#cmdoption-llvm-cov-gcov-f">llvm-cov-gcov command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -fake-argv0=executable
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/lli.html#cmdoption-fake-argv0">command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -file-headers, -h
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/llvm-readobj.html#cmdoption-file-headers">command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -filetype=<output file type>
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/llc.html#cmdoption-filetype">command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -force-interpreter={false,true}
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/lli.html#cmdoption-force-interpreter">command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -function=string
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/llvm-profdata.html#cmdoption-llvm-profdata-show-function">llvm-profdata-show command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -functions=[none|short|linkage]
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/llvm-symbolizer.html#cmdoption-functions">command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -gcc
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/llvm-profdata.html#cmdoption-llvm-profdata-merge-gcc">llvm-profdata-merge command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -gen-asm-matcher
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/tblgen.html#cmdoption-tblgen-gen-asm-matcher">tblgen command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -gen-asm-writer
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/tblgen.html#cmdoption-tblgen-gen-asm-writer">tblgen command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -gen-dag-isel
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/tblgen.html#cmdoption-tblgen-gen-dag-isel">tblgen command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -gen-dfa-packetizer
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/tblgen.html#cmdoption-tblgen-gen-dfa-packetizer">tblgen command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -gen-disassembler
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/tblgen.html#cmdoption-tblgen-gen-disassembler">tblgen command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -gen-emitter
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/tblgen.html#cmdoption-tblgen-gen-emitter">tblgen command line option</a>
+ </dt>
+
+ </dl></dd>
+ </dl></td>
+ <td style="width: 33%" valign="top"><dl>
+
+ <dt>
+ -gen-enhanced-disassembly-info
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/tblgen.html#cmdoption-tblgen-gen-enhanced-disassembly-info">tblgen command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -gen-fast-isel
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/tblgen.html#cmdoption-tblgen-gen-fast-isel">tblgen command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -gen-instr-info
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/tblgen.html#cmdoption-tblgen-gen-instr-info">tblgen command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -gen-intrinsic
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/tblgen.html#cmdoption-tblgen-gen-intrinsic">tblgen command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -gen-pseudo-lowering
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/tblgen.html#cmdoption-tblgen-gen-pseudo-lowering">tblgen command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -gen-register-info
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/tblgen.html#cmdoption-tblgen-gen-register-info">tblgen command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -gen-subtarget
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/tblgen.html#cmdoption-tblgen-gen-subtarget">tblgen command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -gen-tgt-intrinsic
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/tblgen.html#cmdoption-tblgen-gen-tgt-intrinsic">tblgen command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -h, --help
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/lit.html#cmdoption-h">command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -help
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/FileCheck.html#cmdoption-help">command line option</a>, <a href="CommandGuide/llvm-readobj.html#cmdoption-help">[1]</a>, <a href="CommandGuide/opt.html#cmdoption-help">[2]</a>, <a href="CommandGuide/llc.html#cmdoption-help">[3]</a>, <a href="CommandGuide/lli.html#cmdoption-help">[4]</a>, <a href="CommandGuide/llvm-link.html#cmdoption-help">[5]</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/llvm-bcanalyzer.html#cmdoption-llvm-bcanalyzer-help">llvm-bcanalyzer command line option</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/llvm-nm.html#cmdoption-llvm-nm-help">llvm-nm command line option</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/llvm-profdata.html#cmdoption-llvm-profdata-merge-help">llvm-profdata-merge command line option</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/llvm-profdata.html#cmdoption-llvm-profdata-show-help">llvm-profdata-show command line option</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/tblgen.html#cmdoption-tblgen-help">tblgen command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -I directory
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/tblgen.html#cmdoption-tblgen-I">tblgen command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -inlining
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/llvm-symbolizer.html#cmdoption-inlining">command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -instr (default)
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/llvm-profdata.html#cmdoption-llvm-profdata-merge-instr">llvm-profdata-merge command line option</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/llvm-profdata.html#cmdoption-llvm-profdata-show-instr">llvm-profdata-show command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -j N, --threads=N
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/lit.html#cmdoption-j">command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -jit-enable-eh
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/lli.html#cmdoption-jit-enable-eh">command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -join-liveintervals
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/lli.html#cmdoption-join-liveintervals">command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -l, --long-file-names
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/llvm-cov.html#cmdoption-llvm-cov-gcov-l">llvm-cov-gcov command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -line-coverage-gt=<N>
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/llvm-cov.html#cmdoption-llvm-cov-show-line-coverage-gt">llvm-cov-show command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -line-coverage-lt=<N>
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/llvm-cov.html#cmdoption-llvm-cov-show-line-coverage-lt">llvm-cov-show command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -load=<plugin>
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/opt.html#cmdoption-load">command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -load=pluginfilename
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/lli.html#cmdoption-load">command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -march=<arch>
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/llc.html#cmdoption-march">command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -march=arch
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/lli.html#cmdoption-march">command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -mattr=a1,+a2,-a3,...
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/llc.html#cmdoption-mattr">command line option</a>, <a href="CommandGuide/lli.html#cmdoption-mattr">[1]</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -mcpu=<cpuname>
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/llc.html#cmdoption-mcpu">command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -mcpu=cpuname
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/lli.html#cmdoption-mcpu">command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -meabi=[default|gnu|4|5]
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/llc.html#cmdoption-meabi">command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -mtriple=<target triple>
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/llc.html#cmdoption-mtriple">command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -mtriple=target triple
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/lli.html#cmdoption-mtriple">command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -n, --no-output
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/llvm-cov.html#cmdoption-llvm-cov-gcov-n">llvm-cov-gcov command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -name-regex=<PATTERN>
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/llvm-cov.html#cmdoption-llvm-cov-show-name-regex">llvm-cov-show command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -name=<NAME>
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/llvm-cov.html#cmdoption-llvm-cov-show-name">llvm-cov-show command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -needed-libs
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/llvm-readobj.html#cmdoption-needed-libs">command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -nodetails
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/llvm-bcanalyzer.html#cmdoption-llvm-bcanalyzer-nodetails">llvm-bcanalyzer command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -nozero-initialized-in-bss
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/lli.html#cmdoption-nozero-initialized-in-bss">command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -o <filename>
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/opt.html#cmdoption-o">command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -o filename
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/llvm-stress.html#cmdoption-o">command line option</a>, <a href="CommandGuide/llvm-link.html#cmdoption-o">[1]</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/tblgen.html#cmdoption-tblgen-o">tblgen command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -o=<DIR|FILE>, --object-directory=<DIR>, --object-file=<FILE>
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/llvm-cov.html#cmdoption-llvm-cov-gcov-o">llvm-cov-gcov command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -O=uint
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/llc.html#cmdoption-O">command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -obj
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/llvm-symbolizer.html#cmdoption-obj">command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -output=output, -o=output
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/llvm-profdata.html#cmdoption-llvm-profdata-merge-output">llvm-profdata-merge command line option</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/llvm-profdata.html#cmdoption-llvm-profdata-show-output">llvm-profdata-show command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -p
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/opt.html#cmdoption-p">command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -P
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/llvm-nm.html#cmdoption-llvm-nm-P">llvm-nm command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -p, --preserve-paths
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/llvm-cov.html#cmdoption-llvm-cov-gcov-p">llvm-cov-gcov command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -pre-RA-sched=scheduler
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/lli.html#cmdoption-pre-RA-sched">command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -pretty-print
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/llvm-symbolizer.html#cmdoption-pretty-print">command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -print-address
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/llvm-symbolizer.html#cmdoption-print-address">command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -print-enums
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/tblgen.html#cmdoption-tblgen-print-enums">tblgen command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -print-records
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/tblgen.html#cmdoption-tblgen-print-records">tblgen command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -print-sets
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/tblgen.html#cmdoption-tblgen-print-sets">tblgen command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -program-headers
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/llvm-readobj.html#cmdoption-program-headers">command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -q, --quiet
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/lit.html#cmdoption-q">command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -regalloc=allocator
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/lli.html#cmdoption-regalloc">command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -region-coverage-gt=<N>
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/llvm-cov.html#cmdoption-llvm-cov-show-region-coverage-gt">llvm-cov-show command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -region-coverage-lt=<N>
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/llvm-cov.html#cmdoption-llvm-cov-show-region-coverage-lt">llvm-cov-show command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -relocation-model=model
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/lli.html#cmdoption-relocation-model">command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -relocations, -r
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/llvm-readobj.html#cmdoption-relocations">command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -S
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/opt.html#cmdoption-S">command line option</a>, <a href="CommandGuide/llvm-link.html#cmdoption-S">[1]</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -s, --succinct
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/lit.html#cmdoption-s">command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -sample
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/llvm-profdata.html#cmdoption-llvm-profdata-merge-sample">llvm-profdata-merge command line option</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/llvm-profdata.html#cmdoption-llvm-profdata-show-sample">llvm-profdata-show command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -section-data, -sd
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/llvm-readobj.html#cmdoption-section-data">command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -section-relocations, -sr
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/llvm-readobj.html#cmdoption-section-relocations">command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -section-symbols, -st
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/llvm-readobj.html#cmdoption-section-symbols">command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -sections, -s
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/llvm-readobj.html#cmdoption-sections">command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -seed seed
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/llvm-stress.html#cmdoption-seed">command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -show-expansions
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/llvm-cov.html#cmdoption-llvm-cov-show-show-expansions">llvm-cov-show command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -show-instantiations
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/llvm-cov.html#cmdoption-llvm-cov-show-show-instantiations">llvm-cov-show command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -show-line-counts
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/llvm-cov.html#cmdoption-llvm-cov-show-show-line-counts">llvm-cov-show command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -show-line-counts-or-regions
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/llvm-cov.html#cmdoption-llvm-cov-show-show-line-counts-or-regions">llvm-cov-show command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -show-regions
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/llvm-cov.html#cmdoption-llvm-cov-show-show-regions">llvm-cov-show command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -size size
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/llvm-stress.html#cmdoption-size">command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -soft-float
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/lli.html#cmdoption-soft-float">command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -spiller
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/lli.html#cmdoption-spiller">command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -stats
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/opt.html#cmdoption-stats">command line option</a>, <a href="CommandGuide/lli.html#cmdoption-stats">[1]</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -strip-debug
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/opt.html#cmdoption-strip-debug">command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -symbols, -t
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/llvm-readobj.html#cmdoption-symbols">command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -text
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/llvm-profdata.html#cmdoption-llvm-profdata-merge-text">llvm-profdata-merge command line option</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/llvm-profdata.html#cmdoption-llvm-profdata-show-text">llvm-profdata-show command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -time-passes
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/opt.html#cmdoption-time-passes">command line option</a>, <a href="CommandGuide/lli.html#cmdoption-time-passes">[1]</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -u, --unconditional-branches
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/llvm-cov.html#cmdoption-llvm-cov-gcov-u">llvm-cov-gcov command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -unwind, -u
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/llvm-readobj.html#cmdoption-unwind">command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -use-color[=VALUE]
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/llvm-cov.html#cmdoption-llvm-cov-report-use-color">llvm-cov-report command line option</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/llvm-cov.html#cmdoption-llvm-cov-show-use-color">llvm-cov-show command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -use-symbol-table
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/llvm-symbolizer.html#cmdoption-use-symbol-table">command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -v
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/llvm-link.html#cmdoption-v">command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -v, --verbose
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/lit.html#cmdoption-v">command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -verify
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/llvm-bcanalyzer.html#cmdoption-llvm-bcanalyzer-verify">llvm-bcanalyzer command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -verify-each
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/opt.html#cmdoption-verify-each">command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -version
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/FileCheck.html#cmdoption-version">command line option</a>, <a href="CommandGuide/llvm-readobj.html#cmdoption-version">[1]</a>, <a href="CommandGuide/lli.html#cmdoption-version">[2]</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/llvm-cov.html#cmdoption-llvm-cov-gcov-version">llvm-cov-gcov command line option</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/tblgen.html#cmdoption-tblgen-version">tblgen command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -weighted-input=weight,filename
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/llvm-profdata.html#cmdoption-llvm-profdata-merge-weighted-input">llvm-profdata-merge command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -x86-asm-syntax=syntax
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/lli.html#cmdoption-x86-asm-syntax">command line option</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ -{passname}
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/opt.html#cmdoption-">command line option</a>
+ </dt>
+
+ </dl></dd>
+ </dl></td>
+</tr></table>
+
+<h2 id="C">C</h2>
+<table style="width: 100%" class="indextable genindextable"><tr>
+ <td style="width: 33%" valign="top"><dl>
+
+ <dt>
+ command line option
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/FileCheck.html#cmdoption--check-prefix">--check-prefix prefix</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/lit.html#cmdoption--config-prefix">--config-prefix=NAME</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/lit.html#cmdoption--debug">--debug</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/llc.html#cmdoption--disable-excess-fp-precision">--disable-excess-fp-precision</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/llc.html#cmdoption--disable-fp-elim">--disable-fp-elim</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/llc.html#cmdoption--enable-no-infs-fp-math">--enable-no-infs-fp-math</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/llc.html#cmdoption--enable-no-nans-fp-math">--enable-no-nans-fp-math</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/llc.html#cmdoption--enable-unsafe-fp-math">--enable-unsafe-fp-math</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/FileCheck.html#cmdoption--implicit-check-not">--implicit-check-not check-pattern</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/FileCheck.html#cmdoption--input-file">--input-file filename</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/llc.html#cmdoption--load">--load=<dso_path></a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/lit.html#cmdoption--max-tests">--max-tests=N</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/lit.html#cmdoption--max-time">--max-time=N</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/lit.html#cmdoption--no-progress-bar">--no-progress-bar</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/lit.html#cmdoption--path">--path=PATH</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/llc.html#cmdoption--print-machineinstrs">--print-machineinstrs</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/llc.html#cmdoption--regalloc">--regalloc=<allocator></a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/lit.html#cmdoption--show-suites">--show-suites</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/lit.html#cmdoption--show-tests">--show-tests</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/lit.html#cmdoption--show-unsupported">--show-unsupported</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/lit.html#cmdoption--show-xfail">--show-xfail</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/lit.html#cmdoption--shuffle">--shuffle</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/llc.html#cmdoption--spiller">--spiller=<spiller></a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/llc.html#cmdoption--stats">--stats</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/FileCheck.html#cmdoption--strict-whitespace">--strict-whitespace</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/llc.html#cmdoption--time-passes">--time-passes</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/lit.html#cmdoption--time-tests">--time-tests</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/lit.html#cmdoption--vg">--vg</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/lit.html#cmdoption--vg-arg">--vg-arg=ARG</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/lit.html#cmdoption--vg-leak">--vg-leak</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/llc.html#cmdoption--x86-asm-syntax">--x86-asm-syntax=[att|intel]</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/lit.html#cmdoption-D">-D NAME, -D NAME=VALUE, --param NAME, --param NAME=VALUE</a>, <a href="CommandGuide/lit.html#cmdoption-D">[1]</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/llc.html#cmdoption-O">-O=uint</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/opt.html#cmdoption-S">-S</a>, <a href="CommandGuide/llvm-link.html#cmdoption-S">[1]</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/lit.html#cmdoption-a">-a, --show-all</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/lli.html#cmdoption-code-model">-code-model=model</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/llvm-link.html#cmdoption-d">-d</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/opt.html#cmdoption-debug">-debug</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/llvm-dwarfdump.html#cmdoption-debug-dump">-debug-dump=section</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/llvm-symbolizer.html#cmdoption-default-arch">-default-arch</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/llvm-symbolizer.html#cmdoption-demangle">-demangle</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/lli.html#cmdoption-disable-excess-fp-precision">-disable-excess-fp-precision</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/opt.html#cmdoption-disable-inlining">-disable-inlining</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/opt.html#cmdoption-disable-opt">-disable-opt</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/lli.html#cmdoption-disable-post-RA-scheduler">-disable-post-RA-scheduler</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/lli.html#cmdoption-disable-spill-fusing">-disable-spill-fusing</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/llvm-symbolizer.html#cmdoption-dsym-hint">-dsym-hint=<path/to/file.dSYM></a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/llvm-readobj.html#cmdoption-dyn-symbols">-dyn-symbols</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/llvm-readobj.html#cmdoption-dynamic-table">-dynamic-table</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/lli.html#cmdoption-enable-no-infs-fp-math">-enable-no-infs-fp-math</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/lli.html#cmdoption-enable-no-nans-fp-math">-enable-no-nans-fp-math</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/lli.html#cmdoption-enable-unsafe-fp-math">-enable-unsafe-fp-math</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/llvm-readobj.html#cmdoption-expand-relocs">-expand-relocs</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/opt.html#cmdoption-f">-f</a>, <a href="CommandGuide/llvm-link.html#cmdoption-f">[1]</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/lli.html#cmdoption-fake-argv0">-fake-argv0=executable</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/llvm-readobj.html#cmdoption-file-headers">-file-headers, -h</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/llc.html#cmdoption-filetype">-filetype=<output file type></a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/lli.html#cmdoption-force-interpreter">-force-interpreter={false,true}</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/llvm-symbolizer.html#cmdoption-functions">-functions=[none|short|linkage]</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/lit.html#cmdoption-h">-h, --help</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/FileCheck.html#cmdoption-help">-help</a>, <a href="CommandGuide/llvm-readobj.html#cmdoption-help">[1]</a>, <a href="CommandGuide/opt.html#cmdoption-help">[2]</a>, <a href="CommandGuide/llc.html#cmdoption-help">[3]</a>, <a href="CommandGuide/lli.html#cmdoption-help">[4]</a>, <a href="CommandGuide/llvm-link.html#cmdoption-help">[5]</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/llvm-symbolizer.html#cmdoption-inlining">-inlining</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/lit.html#cmdoption-j">-j N, --threads=N</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/lli.html#cmdoption-jit-enable-eh">-jit-enable-eh</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/lli.html#cmdoption-join-liveintervals">-join-liveintervals</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/opt.html#cmdoption-load">-load=<plugin></a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/lli.html#cmdoption-load">-load=pluginfilename</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/llc.html#cmdoption-march">-march=<arch></a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/lli.html#cmdoption-march">-march=arch</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/llc.html#cmdoption-mattr">-mattr=a1,+a2,-a3,...</a>, <a href="CommandGuide/lli.html#cmdoption-mattr">[1]</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/llc.html#cmdoption-mcpu">-mcpu=<cpuname></a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/lli.html#cmdoption-mcpu">-mcpu=cpuname</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/llc.html#cmdoption-meabi">-meabi=[default|gnu|4|5]</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/llc.html#cmdoption-mtriple">-mtriple=<target triple></a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/lli.html#cmdoption-mtriple">-mtriple=target triple</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/llvm-readobj.html#cmdoption-needed-libs">-needed-libs</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/lli.html#cmdoption-nozero-initialized-in-bss">-nozero-initialized-in-bss</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/opt.html#cmdoption-o">-o <filename></a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/llvm-stress.html#cmdoption-o">-o filename</a>, <a href="CommandGuide/llvm-link.html#cmdoption-o">[1]</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/llvm-symbolizer.html#cmdoption-obj">-obj</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/opt.html#cmdoption-p">-p</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/lli.html#cmdoption-pre-RA-sched">-pre-RA-sched=scheduler</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/llvm-symbolizer.html#cmdoption-pretty-print">-pretty-print</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/llvm-symbolizer.html#cmdoption-print-address">-print-address</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/llvm-readobj.html#cmdoption-program-headers">-program-headers</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/lit.html#cmdoption-q">-q, --quiet</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/lli.html#cmdoption-regalloc">-regalloc=allocator</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/lli.html#cmdoption-relocation-model">-relocation-model=model</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/llvm-readobj.html#cmdoption-relocations">-relocations, -r</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/lit.html#cmdoption-s">-s, --succinct</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/llvm-readobj.html#cmdoption-section-data">-section-data, -sd</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/llvm-readobj.html#cmdoption-section-relocations">-section-relocations, -sr</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/llvm-readobj.html#cmdoption-section-symbols">-section-symbols, -st</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/llvm-readobj.html#cmdoption-sections">-sections, -s</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/llvm-stress.html#cmdoption-seed">-seed seed</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/llvm-stress.html#cmdoption-size">-size size</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/lli.html#cmdoption-soft-float">-soft-float</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/lli.html#cmdoption-spiller">-spiller</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/opt.html#cmdoption-stats">-stats</a>, <a href="CommandGuide/lli.html#cmdoption-stats">[1]</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/opt.html#cmdoption-strip-debug">-strip-debug</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/llvm-readobj.html#cmdoption-symbols">-symbols, -t</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/opt.html#cmdoption-time-passes">-time-passes</a>, <a href="CommandGuide/lli.html#cmdoption-time-passes">[1]</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/llvm-readobj.html#cmdoption-unwind">-unwind, -u</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/llvm-symbolizer.html#cmdoption-use-symbol-table">-use-symbol-table</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/llvm-link.html#cmdoption-v">-v</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/lit.html#cmdoption-v">-v, --verbose</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/opt.html#cmdoption-verify-each">-verify-each</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/FileCheck.html#cmdoption-version">-version</a>, <a href="CommandGuide/llvm-readobj.html#cmdoption-version">[1]</a>, <a href="CommandGuide/lli.html#cmdoption-version">[2]</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/lli.html#cmdoption-x86-asm-syntax">-x86-asm-syntax=syntax</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/opt.html#cmdoption-">-{passname}</a>
+ </dt>
+
+ </dl></dd>
+ </dl></td>
+</tr></table>
+
+<h2 id="L">L</h2>
+<table style="width: 100%" class="indextable genindextable"><tr>
+ <td style="width: 33%" valign="top"><dl>
+
+ <dt>
+ llvm-bcanalyzer command line option
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/llvm-bcanalyzer.html#cmdoption-llvm-bcanalyzer-dump">-dump</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/llvm-bcanalyzer.html#cmdoption-llvm-bcanalyzer-help">-help</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/llvm-bcanalyzer.html#cmdoption-llvm-bcanalyzer-nodetails">-nodetails</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/llvm-bcanalyzer.html#cmdoption-llvm-bcanalyzer-verify">-verify</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ llvm-cov-gcov command line option
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/llvm-cov.html#cmdoption-llvm-cov-gcov--help">--help</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/llvm-cov.html#cmdoption-llvm-cov-gcov-a">-a, --all-blocks</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/llvm-cov.html#cmdoption-llvm-cov-gcov-b">-b, --branch-probabilities</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/llvm-cov.html#cmdoption-llvm-cov-gcov-c">-c, --branch-counts</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/llvm-cov.html#cmdoption-llvm-cov-gcov-f">-f, --function-summaries</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/llvm-cov.html#cmdoption-llvm-cov-gcov-l">-l, --long-file-names</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/llvm-cov.html#cmdoption-llvm-cov-gcov-n">-n, --no-output</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/llvm-cov.html#cmdoption-llvm-cov-gcov-o">-o=<DIR|FILE>, --object-directory=<DIR>, --object-file=<FILE></a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/llvm-cov.html#cmdoption-llvm-cov-gcov-p">-p, --preserve-paths</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/llvm-cov.html#cmdoption-llvm-cov-gcov-u">-u, --unconditional-branches</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/llvm-cov.html#cmdoption-llvm-cov-gcov-version">-version</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ llvm-cov-report command line option
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/llvm-cov.html#cmdoption-llvm-cov-report-arch">-arch=<name></a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/llvm-cov.html#cmdoption-llvm-cov-report-use-color">-use-color[=VALUE]</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ llvm-cov-show command line option
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/llvm-cov.html#cmdoption-llvm-cov-show-arch">-arch=<name></a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/llvm-cov.html#cmdoption-llvm-cov-show-line-coverage-gt">-line-coverage-gt=<N></a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/llvm-cov.html#cmdoption-llvm-cov-show-line-coverage-lt">-line-coverage-lt=<N></a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/llvm-cov.html#cmdoption-llvm-cov-show-name-regex">-name-regex=<PATTERN></a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/llvm-cov.html#cmdoption-llvm-cov-show-name">-name=<NAME></a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/llvm-cov.html#cmdoption-llvm-cov-show-region-coverage-gt">-region-coverage-gt=<N></a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/llvm-cov.html#cmdoption-llvm-cov-show-region-coverage-lt">-region-coverage-lt=<N></a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/llvm-cov.html#cmdoption-llvm-cov-show-show-expansions">-show-expansions</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/llvm-cov.html#cmdoption-llvm-cov-show-show-instantiations">-show-instantiations</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/llvm-cov.html#cmdoption-llvm-cov-show-show-line-counts">-show-line-counts</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/llvm-cov.html#cmdoption-llvm-cov-show-show-line-counts-or-regions">-show-line-counts-or-regions</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/llvm-cov.html#cmdoption-llvm-cov-show-show-regions">-show-regions</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/llvm-cov.html#cmdoption-llvm-cov-show-use-color">-use-color[=VALUE]</a>
+ </dt>
+
+ </dl></dd>
+ </dl></td>
+ <td style="width: 33%" valign="top"><dl>
+
+ <dt>
+ llvm-nm command line option
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/llvm-nm.html#cmdoption-llvm-nm--debug-syms">--debug-syms, -a</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/llvm-nm.html#cmdoption-llvm-nm--defined-only">--defined-only</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/llvm-nm.html#cmdoption-llvm-nm--dynamic">--dynamic, -D</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/llvm-nm.html#cmdoption-llvm-nm--extern-only">--extern-only, -g</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/llvm-nm.html#cmdoption-llvm-nm--format">--format=format, -f format</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/llvm-nm.html#cmdoption-llvm-nm--no-sort">--no-sort, -p</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/llvm-nm.html#cmdoption-llvm-nm--numeric-sort">--numeric-sort, -n, -v</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/llvm-nm.html#cmdoption-llvm-nm--print-file-name">--print-file-name, -A, -o</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/llvm-nm.html#cmdoption-llvm-nm--print-size">--print-size, -S</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/llvm-nm.html#cmdoption-llvm-nm--size-sort">--size-sort</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/llvm-nm.html#cmdoption-llvm-nm--undefined-only">--undefined-only, -u</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/llvm-nm.html#cmdoption-llvm-nm-B">-B (default)</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/llvm-nm.html#cmdoption-llvm-nm-P">-P</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/llvm-nm.html#cmdoption-llvm-nm-help">-help</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ llvm-profdata-merge command line option
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/llvm-profdata.html#cmdoption-llvm-profdata-merge-binary">-binary (default)</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/llvm-profdata.html#cmdoption-llvm-profdata-merge-gcc">-gcc</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/llvm-profdata.html#cmdoption-llvm-profdata-merge-help">-help</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/llvm-profdata.html#cmdoption-llvm-profdata-merge-instr">-instr (default)</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/llvm-profdata.html#cmdoption-llvm-profdata-merge-output">-output=output, -o=output</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/llvm-profdata.html#cmdoption-llvm-profdata-merge-sample">-sample</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/llvm-profdata.html#cmdoption-llvm-profdata-merge-text">-text</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/llvm-profdata.html#cmdoption-llvm-profdata-merge-weighted-input">-weighted-input=weight,filename</a>
+ </dt>
+
+ </dl></dd>
+
+ <dt>
+ llvm-profdata-show command line option
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/llvm-profdata.html#cmdoption-llvm-profdata-show-all-functions">-all-functions</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/llvm-profdata.html#cmdoption-llvm-profdata-show-counts">-counts</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/llvm-profdata.html#cmdoption-llvm-profdata-show-function">-function=string</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/llvm-profdata.html#cmdoption-llvm-profdata-show-help">-help</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/llvm-profdata.html#cmdoption-llvm-profdata-show-instr">-instr (default)</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/llvm-profdata.html#cmdoption-llvm-profdata-show-output">-output=output, -o=output</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/llvm-profdata.html#cmdoption-llvm-profdata-show-sample">-sample</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/llvm-profdata.html#cmdoption-llvm-profdata-show-text">-text</a>
+ </dt>
+
+ </dl></dd>
+ </dl></td>
+</tr></table>
+
+<h2 id="T">T</h2>
+<table style="width: 100%" class="indextable genindextable"><tr>
+ <td style="width: 33%" valign="top"><dl>
+
+ <dt>
+ tblgen command line option
+ </dt>
+
+ <dd><dl>
+
+ <dt><a href="CommandGuide/tblgen.html#cmdoption-tblgen-I">-I directory</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/tblgen.html#cmdoption-tblgen-asmparsernum">-asmparsernum N</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/tblgen.html#cmdoption-tblgen-asmwriternum">-asmwriternum N</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/tblgen.html#cmdoption-tblgen-class">-class className</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/tblgen.html#cmdoption-tblgen-gen-asm-matcher">-gen-asm-matcher</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/tblgen.html#cmdoption-tblgen-gen-asm-writer">-gen-asm-writer</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/tblgen.html#cmdoption-tblgen-gen-dag-isel">-gen-dag-isel</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/tblgen.html#cmdoption-tblgen-gen-dfa-packetizer">-gen-dfa-packetizer</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/tblgen.html#cmdoption-tblgen-gen-disassembler">-gen-disassembler</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/tblgen.html#cmdoption-tblgen-gen-emitter">-gen-emitter</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/tblgen.html#cmdoption-tblgen-gen-enhanced-disassembly-info">-gen-enhanced-disassembly-info</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/tblgen.html#cmdoption-tblgen-gen-fast-isel">-gen-fast-isel</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/tblgen.html#cmdoption-tblgen-gen-instr-info">-gen-instr-info</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/tblgen.html#cmdoption-tblgen-gen-intrinsic">-gen-intrinsic</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/tblgen.html#cmdoption-tblgen-gen-pseudo-lowering">-gen-pseudo-lowering</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/tblgen.html#cmdoption-tblgen-gen-register-info">-gen-register-info</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/tblgen.html#cmdoption-tblgen-gen-subtarget">-gen-subtarget</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/tblgen.html#cmdoption-tblgen-gen-tgt-intrinsic">-gen-tgt-intrinsic</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/tblgen.html#cmdoption-tblgen-help">-help</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/tblgen.html#cmdoption-tblgen-o">-o filename</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/tblgen.html#cmdoption-tblgen-print-enums">-print-enums</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/tblgen.html#cmdoption-tblgen-print-records">-print-records</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/tblgen.html#cmdoption-tblgen-print-sets">-print-sets</a>
+ </dt>
+
+
+ <dt><a href="CommandGuide/tblgen.html#cmdoption-tblgen-version">-version</a>
+ </dt>
+
+ </dl></dd>
+ </dl></td>
+</tr></table>
+
+
+
+ </div>
+ </div>
+ <div class="clearer"></div>
+ </div>
+ <div class="related">
+ <h3>Navigation</h3>
+ <ul>
+ <li class="right" style="margin-right: 10px">
+ <a href="#" title="General Index"
+ >index</a></li>
+ <li><a href="http://llvm.org/">LLVM Home</a> | </li>
+ <li><a href="index.html">Documentation</a>»</li>
+
+ </ul>
+ </div>
+ <div class="footer">
+ © Copyright 2003-2016, LLVM Project.
+ Last updated on 2016-07-11.
+ Created using <a href="http://sphinx-doc.org/">Sphinx</a> 1.2.2.
+ </div>
+ </body>
+</html>
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+++ www-releases/trunk/3.8.1/docs/index.html Mon Jul 11 14:36:11 2016
@@ -0,0 +1,394 @@
+
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
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+
+
+<html xmlns="http://www.w3.org/1999/xhtml">
+ <head>
+ <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
+
+ <title>Overview — LLVM 3.8 documentation</title>
+
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+ };
+ </script>
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+ <script type="text/javascript" src="_static/underscore.js"></script>
+ <script type="text/javascript" src="_static/doctools.js"></script>
+ <link rel="top" title="LLVM 3.8 documentation" href="#" />
+ <link rel="next" title="LLVM Language Reference Manual" href="LangRef.html" />
+<style type="text/css">
+ table.right { float: right; margin-left: 20px; }
+ table.right td { border: 1px solid #ccc; }
+</style>
+
+ </head>
+ <body>
+<div class="logo">
+ <a href="#">
+ <img src="_static/logo.png"
+ alt="LLVM Logo" width="250" height="88"/></a>
+</div>
+
+ <div class="related">
+ <h3>Navigation</h3>
+ <ul>
+ <li class="right" style="margin-right: 10px">
+ <a href="genindex.html" title="General Index"
+ accesskey="I">index</a></li>
+ <li class="right" >
+ <a href="LangRef.html" title="LLVM Language Reference Manual"
+ accesskey="N">next</a> |</li>
+ <li><a href="http://llvm.org/">LLVM Home</a> | </li>
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+
+ </ul>
+ </div>
+
+
+ <div class="document">
+ <div class="documentwrapper">
+ <div class="body">
+
+ <div class="section" id="overview">
+<h1>Overview<a class="headerlink" href="#overview" title="Permalink to this headline">¶</a></h1>
+<p>The LLVM compiler infrastructure supports a wide range of projects, from
+industrial strength compilers to specialized JIT applications to small
+research projects.</p>
+<p>Similarly, documentation is broken down into several high-level groupings
+targeted at different audiences:</p>
+</div>
+<div class="section" id="llvm-design-overview">
+<h1>LLVM Design & Overview<a class="headerlink" href="#llvm-design-overview" title="Permalink to this headline">¶</a></h1>
+<p>Several introductory papers and presentations.</p>
+<div class="toctree-wrapper compound">
+</div>
+<dl class="docutils">
+<dt><a class="reference internal" href="LangRef.html"><em>LLVM Language Reference Manual</em></a></dt>
+<dd>Defines the LLVM intermediate representation.</dd>
+<dt><a class="reference external" href="http://llvm.org/pubs/2008-10-04-ACAT-LLVM-Intro.html">Introduction to the LLVM Compiler</a></dt>
+<dd>Presentation providing a users introduction to LLVM.</dd>
+<dt><a class="reference external" href="http://www.aosabook.org/en/llvm.html">Intro to LLVM</a></dt>
+<dd>Book chapter providing a compiler hacker’s introduction to LLVM.</dd>
+<dt><a class="reference external" href="http://llvm.org/pubs/2004-01-30-CGO-LLVM.html">LLVM: A Compilation Framework for Lifelong Program Analysis & Transformation</a></dt>
+<dd>Design overview.</dd>
+<dt><a class="reference external" href="http://llvm.org/pubs/2002-12-LattnerMSThesis.html">LLVM: An Infrastructure for Multi-Stage Optimization</a></dt>
+<dd>More details (quite old now).</dd>
+<dt><a class="reference external" href="http://llvm.org/pubs">Publications mentioning LLVM</a></dt>
+<dd></dd>
+</dl>
+</div>
+<div class="section" id="user-guides">
+<h1>User Guides<a class="headerlink" href="#user-guides" title="Permalink to this headline">¶</a></h1>
+<p>For those new to the LLVM system.</p>
+<p>NOTE: If you are a user who is only interested in using LLVM-based
+compilers, you should look into <a class="reference external" href="http://clang.llvm.org">Clang</a> or
+<a class="reference external" href="http://dragonegg.llvm.org">DragonEgg</a> instead. The documentation here is
+intended for users who have a need to work with the intermediate LLVM
+representation.</p>
+<div class="toctree-wrapper compound">
+</div>
+<dl class="docutils">
+<dt><a class="reference internal" href="GettingStarted.html"><em>Getting Started with the LLVM System</em></a></dt>
+<dd>Discusses how to get up and running quickly with the LLVM infrastructure.
+Everything from unpacking and compilation of the distribution to execution
+of some tools.</dd>
+<dt><a class="reference internal" href="CMake.html"><em>Building LLVM with CMake</em></a></dt>
+<dd>An addendum to the main Getting Started guide for those using the <a class="reference external" href="http://www.cmake.org">CMake
+build system</a>.</dd>
+<dt><a class="reference internal" href="HowToBuildOnARM.html"><em>How To Build On ARM</em></a></dt>
+<dd>Notes on building and testing LLVM/Clang on ARM.</dd>
+<dt><a class="reference internal" href="HowToCrossCompileLLVM.html"><em>How To Cross-Compile Clang/LLVM using Clang/LLVM</em></a></dt>
+<dd>Notes on cross-building and testing LLVM/Clang.</dd>
+<dt><a class="reference internal" href="GettingStartedVS.html"><em>Getting Started with the LLVM System using Microsoft Visual Studio</em></a></dt>
+<dd>An addendum to the main Getting Started guide for those using Visual Studio
+on Windows.</dd>
+<dt><a class="reference internal" href="BuildingLLVMWithAutotools.html"><em>Building LLVM With Autotools</em></a></dt>
+<dd>An addendum to the Getting Started guide with instructions for building LLVM
+with the Autotools build system.</dd>
+<dt><a class="reference internal" href="tutorial/index.html"><em>LLVM Tutorial: Table of Contents</em></a></dt>
+<dd>Tutorials about using LLVM. Includes a tutorial about making a custom
+language with LLVM.</dd>
+<dt><a class="reference internal" href="CommandGuide/index.html"><em>LLVM Command Guide</em></a></dt>
+<dd>A reference manual for the LLVM command line utilities (“man” pages for LLVM
+tools).</dd>
+<dt><a class="reference internal" href="Passes.html"><em>LLVM’s Analysis and Transform Passes</em></a></dt>
+<dd>A list of optimizations and analyses implemented in LLVM.</dd>
+<dt><a class="reference internal" href="FAQ.html"><em>Frequently Asked Questions (FAQ)</em></a></dt>
+<dd>A list of common questions and problems and their solutions.</dd>
+<dt><a class="reference internal" href="ReleaseNotes.html"><em>Release notes for the current release</em></a></dt>
+<dd>This describes new features, known bugs, and other limitations.</dd>
+<dt><a class="reference internal" href="HowToSubmitABug.html"><em>How to submit an LLVM bug report</em></a></dt>
+<dd>Instructions for properly submitting information about any bugs you run into
+in the LLVM system.</dd>
+<dt><a class="reference internal" href="SphinxQuickstartTemplate.html"><em>Sphinx Quickstart Template</em></a></dt>
+<dd>A template + tutorial for writing new Sphinx documentation. It is meant
+to be read in source form.</dd>
+<dt><a class="reference internal" href="TestingGuide.html"><em>LLVM Testing Infrastructure Guide</em></a></dt>
+<dd>A reference manual for using the LLVM testing infrastructure.</dd>
+<dt><a class="reference external" href="http://clang.llvm.org/get_started.html">How to build the C, C++, ObjC, and ObjC++ front end</a></dt>
+<dd>Instructions for building the clang front-end from source.</dd>
+<dt><a class="reference internal" href="Lexicon.html"><em>The LLVM Lexicon</em></a></dt>
+<dd>Definition of acronyms, terms and concepts used in LLVM.</dd>
+<dt><a class="reference internal" href="HowToAddABuilder.html"><em>How To Add Your Build Configuration To LLVM Buildbot Infrastructure</em></a></dt>
+<dd>Instructions for adding new builder to LLVM buildbot master.</dd>
+<dt><a class="reference internal" href="YamlIO.html"><em>YAML I/O</em></a></dt>
+<dd>A reference guide for using LLVM’s YAML I/O library.</dd>
+<dt><a class="reference internal" href="GetElementPtr.html"><em>The Often Misunderstood GEP Instruction</em></a></dt>
+<dd>Answers to some very frequent questions about LLVM’s most frequently
+misunderstood instruction.</dd>
+<dt><a class="reference internal" href="Frontend/PerformanceTips.html"><em>Performance Tips for Frontend Authors</em></a></dt>
+<dd>A collection of tips for frontend authors on how to generate IR
+which LLVM is able to effectively optimize.</dd>
+</dl>
+</div>
+<div class="section" id="programming-documentation">
+<h1>Programming Documentation<a class="headerlink" href="#programming-documentation" title="Permalink to this headline">¶</a></h1>
+<p>For developers of applications which use LLVM as a library.</p>
+<div class="toctree-wrapper compound">
+</div>
+<dl class="docutils">
+<dt><a class="reference internal" href="LangRef.html"><em>LLVM Language Reference Manual</em></a></dt>
+<dd>Defines the LLVM intermediate representation and the assembly form of the
+different nodes.</dd>
+<dt><a class="reference internal" href="Atomics.html"><em>LLVM Atomic Instructions and Concurrency Guide</em></a></dt>
+<dd>Information about LLVM’s concurrency model.</dd>
+<dt><a class="reference internal" href="ProgrammersManual.html"><em>LLVM Programmer’s Manual</em></a></dt>
+<dd>Introduction to the general layout of the LLVM sourcebase, important classes
+and APIs, and some tips & tricks.</dd>
+<dt><a class="reference internal" href="Extensions.html"><em>LLVM Extensions</em></a></dt>
+<dd>LLVM-specific extensions to tools and formats LLVM seeks compatibility with.</dd>
+<dt><a class="reference internal" href="CommandLine.html"><em>CommandLine 2.0 Library Manual</em></a></dt>
+<dd>Provides information on using the command line parsing library.</dd>
+<dt><a class="reference internal" href="CodingStandards.html"><em>LLVM Coding Standards</em></a></dt>
+<dd>Details the LLVM coding standards and provides useful information on writing
+efficient C++ code.</dd>
+<dt><a class="reference internal" href="HowToSetUpLLVMStyleRTTI.html"><em>How to set up LLVM-style RTTI for your class hierarchy</em></a></dt>
+<dd>How to make <tt class="docutils literal"><span class="pre">isa<></span></tt>, <tt class="docutils literal"><span class="pre">dyn_cast<></span></tt>, etc. available for clients of your
+class hierarchy.</dd>
+<dt><a class="reference internal" href="ExtendingLLVM.html"><em>Extending LLVM: Adding instructions, intrinsics, types, etc.</em></a></dt>
+<dd>Look here to see how to add instructions and intrinsics to LLVM.</dd>
+<dt><a class="reference external" href="http://llvm.org/doxygen/">Doxygen generated documentation</a></dt>
+<dd>(<a class="reference external" href="http://llvm.org/doxygen/inherits.html">classes</a>)
+(<a class="reference external" href="http://llvm.org/doxygen/doxygen.tar.gz">tarball</a>)</dd>
+</dl>
+<p><a class="reference external" href="http://godoc.org/llvm.org/llvm/bindings/go/llvm">Documentation for Go bindings</a></p>
+<dl class="docutils">
+<dt><a class="reference external" href="http://llvm.org/viewvc/">ViewVC Repository Browser</a></dt>
+<dd></dd>
+<dt><a class="reference internal" href="CompilerWriterInfo.html"><em>Architecture & Platform Information for Compiler Writers</em></a></dt>
+<dd>A list of helpful links for compiler writers.</dd>
+<dt><a class="reference internal" href="LibFuzzer.html"><em>LibFuzzer – a library for coverage-guided fuzz testing.</em></a></dt>
+<dd>A library for writing in-process guided fuzzers.</dd>
+</dl>
+</div>
+<div class="section" id="subsystem-documentation">
+<h1>Subsystem Documentation<a class="headerlink" href="#subsystem-documentation" title="Permalink to this headline">¶</a></h1>
+<p>For API clients and LLVM developers.</p>
+<div class="toctree-wrapper compound">
+</div>
+<dl class="docutils">
+<dt><a class="reference internal" href="WritingAnLLVMPass.html"><em>Writing an LLVM Pass</em></a></dt>
+<dd>Information on how to write LLVM transformations and analyses.</dd>
+<dt><a class="reference internal" href="WritingAnLLVMBackend.html"><em>Writing an LLVM Backend</em></a></dt>
+<dd>Information on how to write LLVM backends for machine targets.</dd>
+<dt><a class="reference internal" href="CodeGenerator.html"><em>The LLVM Target-Independent Code Generator</em></a></dt>
+<dd>The design and implementation of the LLVM code generator. Useful if you are
+working on retargetting LLVM to a new architecture, designing a new codegen
+pass, or enhancing existing components.</dd>
+<dt><a class="reference internal" href="MIRLangRef.html"><em>Machine IR (MIR) Format Reference Manual</em></a></dt>
+<dd>A reference manual for the MIR serialization format, which is used to test
+LLVM’s code generation passes.</dd>
+<dt><a class="reference internal" href="TableGen/index.html"><em>TableGen</em></a></dt>
+<dd>Describes the TableGen tool, which is used heavily by the LLVM code
+generator.</dd>
+<dt><a class="reference internal" href="AliasAnalysis.html"><em>LLVM Alias Analysis Infrastructure</em></a></dt>
+<dd>Information on how to write a new alias analysis implementation or how to
+use existing analyses.</dd>
+<dt><a class="reference internal" href="GarbageCollection.html"><em>Garbage Collection with LLVM</em></a></dt>
+<dd>The interfaces source-language compilers should use for compiling GC’d
+programs.</dd>
+<dt><a class="reference internal" href="SourceLevelDebugging.html"><em>Source Level Debugging with LLVM</em></a></dt>
+<dd>This document describes the design and philosophy behind the LLVM
+source-level debugger.</dd>
+<dt><a class="reference internal" href="Vectorizers.html"><em>Auto-Vectorization in LLVM</em></a></dt>
+<dd>This document describes the current status of vectorization in LLVM.</dd>
+<dt><a class="reference internal" href="ExceptionHandling.html"><em>Exception Handling in LLVM</em></a></dt>
+<dd>This document describes the design and implementation of exception handling
+in LLVM.</dd>
+<dt><a class="reference internal" href="Bugpoint.html"><em>LLVM bugpoint tool: design and usage</em></a></dt>
+<dd>Automatic bug finder and test-case reducer description and usage
+information.</dd>
+<dt><a class="reference internal" href="BitCodeFormat.html"><em>LLVM Bitcode File Format</em></a></dt>
+<dd>This describes the file format and encoding used for LLVM “bc” files.</dd>
+<dt><a class="reference internal" href="SystemLibrary.html"><em>System Library</em></a></dt>
+<dd>This document describes the LLVM System Library (<tt class="docutils literal"><span class="pre">lib/System</span></tt>) and
+how to keep LLVM source code portable</dd>
+<dt><a class="reference internal" href="LinkTimeOptimization.html"><em>LLVM Link Time Optimization: Design and Implementation</em></a></dt>
+<dd>This document describes the interface between LLVM intermodular optimizer
+and the linker and its design</dd>
+<dt><a class="reference internal" href="GoldPlugin.html"><em>The LLVM gold plugin</em></a></dt>
+<dd>How to build your programs with link-time optimization on Linux.</dd>
+<dt><a class="reference internal" href="DebuggingJITedCode.html"><em>Debugging JIT-ed Code With GDB</em></a></dt>
+<dd>How to debug JITed code with GDB.</dd>
+<dt><a class="reference internal" href="MCJITDesignAndImplementation.html"><em>MCJIT Design and Implementation</em></a></dt>
+<dd>Describes the inner workings of MCJIT execution engine.</dd>
+<dt><a class="reference internal" href="BranchWeightMetadata.html"><em>LLVM Branch Weight Metadata</em></a></dt>
+<dd>Provides information about Branch Prediction Information.</dd>
+<dt><a class="reference internal" href="BlockFrequencyTerminology.html"><em>LLVM Block Frequency Terminology</em></a></dt>
+<dd>Provides information about terminology used in the <tt class="docutils literal"><span class="pre">BlockFrequencyInfo</span></tt>
+analysis pass.</dd>
+<dt><a class="reference internal" href="SegmentedStacks.html"><em>Segmented Stacks in LLVM</em></a></dt>
+<dd>This document describes segmented stacks and how they are used in LLVM.</dd>
+<dt><a class="reference internal" href="MarkedUpDisassembly.html"><em>LLVM’s Optional Rich Disassembly Output</em></a></dt>
+<dd>This document describes the optional rich disassembly output syntax.</dd>
+<dt><a class="reference internal" href="HowToUseAttributes.html"><em>How To Use Attributes</em></a></dt>
+<dd>Answers some questions about the new Attributes infrastructure.</dd>
+<dt><a class="reference internal" href="NVPTXUsage.html"><em>User Guide for NVPTX Back-end</em></a></dt>
+<dd>This document describes using the NVPTX back-end to compile GPU kernels.</dd>
+<dt><a class="reference internal" href="AMDGPUUsage.html"><em>User Guide for AMDGPU Back-end</em></a></dt>
+<dd>This document describes how to use the AMDGPU back-end.</dd>
+<dt><a class="reference internal" href="StackMaps.html"><em>Stack maps and patch points in LLVM</em></a></dt>
+<dd>LLVM support for mapping instruction addresses to the location of
+values and allowing code to be patched.</dd>
+<dt><a class="reference internal" href="BigEndianNEON.html"><em>Using ARM NEON instructions in big endian mode</em></a></dt>
+<dd>LLVM’s support for generating NEON instructions on big endian ARM targets is
+somewhat nonintuitive. This document explains the implementation and rationale.</dd>
+<dt><a class="reference internal" href="CoverageMappingFormat.html"><em>LLVM Code Coverage Mapping Format</em></a></dt>
+<dd>This describes the format and encoding used for LLVM’s code coverage mapping.</dd>
+<dt><a class="reference internal" href="Statepoints.html"><em>Garbage Collection Safepoints in LLVM</em></a></dt>
+<dd>This describes a set of experimental extensions for garbage
+collection support.</dd>
+<dt><a class="reference internal" href="MergeFunctions.html"><em>MergeFunctions pass, how it works</em></a></dt>
+<dd>Describes functions merging optimization.</dd>
+<dt><a class="reference internal" href="InAlloca.html"><em>Design and Usage of the InAlloca Attribute</em></a></dt>
+<dd>Description of the <tt class="docutils literal"><span class="pre">inalloca</span></tt> argument attribute.</dd>
+<dt><a class="reference internal" href="FaultMaps.html"><em>FaultMaps and implicit checks</em></a></dt>
+<dd>LLVM support for folding control flow into faulting machine instructions.</dd>
+<dt><a class="reference internal" href="CompileCudaWithLLVM.html"><em>Compiling CUDA C/C++ with LLVM</em></a></dt>
+<dd>LLVM support for CUDA.</dd>
+</dl>
+</div>
+<div class="section" id="development-process-documentation">
+<h1>Development Process Documentation<a class="headerlink" href="#development-process-documentation" title="Permalink to this headline">¶</a></h1>
+<p>Information about LLVM’s development process.</p>
+<div class="toctree-wrapper compound">
+</div>
+<dl class="docutils">
+<dt><a class="reference internal" href="DeveloperPolicy.html"><em>LLVM Developer Policy</em></a></dt>
+<dd>The LLVM project’s policy towards developers and their contributions.</dd>
+<dt><a class="reference internal" href="Projects.html"><em>Creating an LLVM Project</em></a></dt>
+<dd>How-to guide and templates for new projects that <em>use</em> the LLVM
+infrastructure. The templates (directory organization, Makefiles, and test
+tree) allow the project code to be located outside (or inside) the <tt class="docutils literal"><span class="pre">llvm/</span></tt>
+tree, while using LLVM header files and libraries.</dd>
+<dt><a class="reference internal" href="LLVMBuild.html"><em>LLVMBuild Guide</em></a></dt>
+<dd>Describes the LLVMBuild organization and files used by LLVM to specify
+component descriptions.</dd>
+<dt><a class="reference internal" href="MakefileGuide.html"><em>LLVM Makefile Guide</em></a></dt>
+<dd>Describes how the LLVM makefiles work and how to use them.</dd>
+<dt><a class="reference internal" href="HowToReleaseLLVM.html"><em>How To Release LLVM To The Public</em></a></dt>
+<dd>This is a guide to preparing LLVM releases. Most developers can ignore it.</dd>
+<dt><a class="reference internal" href="ReleaseProcess.html"><em>How To Validate a New Release</em></a></dt>
+<dd>This is a guide to validate a new release, during the release process. Most developers can ignore it.</dd>
+<dt><a class="reference internal" href="Packaging.html"><em>Advice on Packaging LLVM</em></a></dt>
+<dd>Advice on packaging LLVM into a distribution.</dd>
+<dt><a class="reference internal" href="Phabricator.html"><em>Code Reviews with Phabricator</em></a></dt>
+<dd>Describes how to use the Phabricator code review tool hosted on
+<a class="reference external" href="http://reviews.llvm.org/">http://reviews.llvm.org/</a> and its command line interface, Arcanist.</dd>
+</dl>
+</div>
+<div class="section" id="community">
+<h1>Community<a class="headerlink" href="#community" title="Permalink to this headline">¶</a></h1>
+<p>LLVM has a thriving community of friendly and helpful developers.
+The two primary communication mechanisms in the LLVM community are mailing
+lists and IRC.</p>
+<div class="section" id="mailing-lists">
+<h2>Mailing Lists<a class="headerlink" href="#mailing-lists" title="Permalink to this headline">¶</a></h2>
+<p>If you can’t find what you need in these docs, try consulting the mailing
+lists.</p>
+<dl class="docutils">
+<dt><a class="reference external" href="http://lists.llvm.org/mailman/listinfo/llvm-dev">Developer’s List (llvm-dev)</a></dt>
+<dd>This list is for people who want to be included in technical discussions of
+LLVM. People post to this list when they have questions about writing code
+for or using the LLVM tools. It is relatively low volume.</dd>
+<dt><a class="reference external" href="http://lists.llvm.org/pipermail/llvm-commits/">Commits Archive (llvm-commits)</a></dt>
+<dd>This list contains all commit messages that are made when LLVM developers
+commit code changes to the repository. It also serves as a forum for
+patch review (i.e. send patches here). It is useful for those who want to
+stay on the bleeding edge of LLVM development. This list is very high
+volume.</dd>
+<dt><a class="reference external" href="http://lists.llvm.org/pipermail/llvm-bugs/">Bugs & Patches Archive (llvm-bugs)</a></dt>
+<dd>This list gets emailed every time a bug is opened and closed. It is
+higher volume than the LLVM-dev list.</dd>
+<dt><a class="reference external" href="http://lists.llvm.org/pipermail/llvm-testresults/">Test Results Archive (llvm-testresults)</a></dt>
+<dd>A message is automatically sent to this list by every active nightly tester
+when it completes. As such, this list gets email several times each day,
+making it a high volume list.</dd>
+<dt><a class="reference external" href="http://lists.llvm.org/mailman/listinfo/llvm-announce">LLVM Announcements List (llvm-announce)</a></dt>
+<dd>This is a low volume list that provides important announcements regarding
+LLVM. It gets email about once a month.</dd>
+</dl>
+</div>
+<div class="section" id="irc">
+<h2>IRC<a class="headerlink" href="#irc" title="Permalink to this headline">¶</a></h2>
+<p>Users and developers of the LLVM project (including subprojects such as Clang)
+can be found in #llvm on <a class="reference external" href="irc://irc.oftc.net/llvm">irc.oftc.net</a>.</p>
+<p>This channel has several bots.</p>
+<ul class="simple">
+<li>Buildbot reporters<ul>
+<li>llvmbb - Bot for the main LLVM buildbot master.
+<a class="reference external" href="http://lab.llvm.org:8011/console">http://lab.llvm.org:8011/console</a></li>
+<li>bb-chapuni - An individually run buildbot master. <a class="reference external" href="http://bb.pgr.jp/console">http://bb.pgr.jp/console</a></li>
+<li>smooshlab - Apple’s internal buildbot master.</li>
+</ul>
+</li>
+<li>robot - Bugzilla linker. %bug <number></li>
+<li>clang-bot - A <a class="reference external" href="http://www.eelis.net/geordi/">geordi</a> instance running
+near-trunk clang instead of gcc.</li>
+</ul>
+</div>
+</div>
+<div class="section" id="indices-and-tables">
+<h1>Indices and tables<a class="headerlink" href="#indices-and-tables" title="Permalink to this headline">¶</a></h1>
+<ul class="simple">
+<li><a class="reference internal" href="genindex.html"><em>Index</em></a></li>
+<li><a class="reference internal" href="search.html"><em>Search Page</em></a></li>
+</ul>
+</div>
+
+
+ </div>
+ </div>
+ <div class="clearer"></div>
+ </div>
+ <div class="related">
+ <h3>Navigation</h3>
+ <ul>
+ <li class="right" style="margin-right: 10px">
+ <a href="genindex.html" title="General Index"
+ >index</a></li>
+ <li class="right" >
+ <a href="LangRef.html" title="LLVM Language Reference Manual"
+ >next</a> |</li>
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+ <li><a href="#">Documentation</a>»</li>
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+ <div class="footer">
+ © Copyright 2003-2016, LLVM Project.
+ Last updated on 2016-07-11.
+ Created using <a href="http://sphinx-doc.org/">Sphinx</a> 1.2.2.
+ </div>
+ </body>
+</html>
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+ <head>
+ <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
+
+ <title>Search — LLVM 3.8 documentation</title>
+
+ <link rel="stylesheet" href="_static/llvm-theme.css" type="text/css" />
+ <link rel="stylesheet" href="_static/pygments.css" type="text/css" />
+
+ <script type="text/javascript">
+ var DOCUMENTATION_OPTIONS = {
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+ </script>
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+ <script type="text/javascript" src="_static/doctools.js"></script>
+ <script type="text/javascript" src="_static/searchtools.js"></script>
+ <link rel="top" title="LLVM 3.8 documentation" href="index.html" />
+ <script type="text/javascript">
+ jQuery(function() { Search.loadIndex("searchindex.js"); });
+ </script>
+
+ <script type="text/javascript" id="searchindexloader"></script>
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+<style type="text/css">
+ table.right { float: right; margin-left: 20px; }
+ table.right td { border: 1px solid #ccc; }
+</style>
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+ </head>
+ <body>
+<div class="logo">
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+ <img src="_static/logo.png"
+ alt="LLVM Logo" width="250" height="88"/></a>
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+ <h3>Navigation</h3>
+ <ul>
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+ accesskey="I">index</a></li>
+ <li><a href="http://llvm.org/">LLVM Home</a> | </li>
+ <li><a href="index.html">Documentation</a>»</li>
+
+ </ul>
+ </div>
+
+
+ <div class="document">
+ <div class="documentwrapper">
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+
+ <h1 id="search-documentation">Search</h1>
+ <div id="fallback" class="admonition warning">
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+ <p>
+ Please activate JavaScript to enable the search
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+ <p>
+ From here you can search these documents. Enter your search
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+ <input type="text" name="q" value="" />
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+ <h3>Navigation</h3>
+ <ul>
+ <li class="right" style="margin-right: 10px">
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+ <li><a href="http://llvm.org/">LLVM Home</a> | </li>
+ <li><a href="index.html">Documentation</a>»</li>
+
+ </ul>
+ </div>
+ <div class="footer">
+ © Copyright 2003-2016, LLVM Project.
+ Last updated on 2016-07-11.
+ Created using <a href="http://sphinx-doc.org/">Sphinx</a> 1.2.2.
+ </div>
+ </body>
+</html>
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bio:26,rediscov:[40,12],filename0:68,lto_module_is_object_file_in_memori:92,createret:[41,43,47,2,49,50],format:80,bikesh:104,generalcategori:21,falsedest:72,split:[32,66,54,105,34,21,86,87,88,85,27,80,76,72,31,52],immtypebit:6,functionpassmanag:[47,2,49,50],annoat:29,reassoci:[61,72],cxx0x:70,dest1:72,fairli:[54,42,56,45,100,2,49,88,12,51,28,14,15,17,18,19],dest2:72,refil:34,ownership:[41,47,2,49,50,27,17],printdeclar:54,tune:86,instrprofvaluekind:72,tokvarnam:30,nuzman:0,gzip:24,unchang:[72,17,42],ordin:21,phinod:[70,41,47,2,49],previous:[62,54,35,72,21,49,50,97,111,96,30,31,20],fintegr:31,easi:[86,33,34,35,1,70,72,40,47,43,56,45,9,49,50,10,12,13,14,16,17,18,19,20,104,75,106,78,22,24,62,26,94,89,65,27,115,28,109],bitwidth:[34,72,115],had:[8,74,34,31,94,88,78,90,80,38,4,109,72],v4p0f_i32f:72,har:[24,52],hat:94,sanit:[24,26,62,31],ocamlbuild:[13,14,15,16,19,20],issimpl:88,preserv:[24,40,86,99,105,42,74,21,55,78,97,12,80,111,90,72],instrumen:68,st_mode:99,attrparsedattrkind:22,isdecl
ar:17,measur:99,specif:[115,89,88,25],fcmpinst:17,nonlazybind:72,remind:[27,96],underli:[70,62,75,21,86,57,27,80],right:[66,70,99,116,21,86,88,27,80],old:[97,27,101,42],getargumentlist:17,unabashedli:67,x86_fastcal:86,olt:72,paralleltarget:67,dominatorset:78,txt:[24,70,62,84,55,21,96,10,81,27,28,109],sparcsubtarget:54,bottom:[32,61,84,54,0,34,21,78,14,4,72,60,82],undisturb:70,lto_module_get_num_symbol:92,stringsort:70,subclass:[70,104,42,75,76,21,86],cassert:[70,8],topleveltarget:67,op_begin:17,condit:[24,61,62,105,8,34,21,86,70,88,97,3,92,51,111,72,100],foo:[63,0,74,70,3,113,72,68,8,43,5,100,48,49,50,10,13,14,86,17,19,20,104,105,75,21,106,57,23,80,81,60,111,26,42,94,56,30,119],"0f00000000":8,armv7a:[9,96],sensibl:17,leftr:34,egregi:27,tablegen:62,bindex:54,emitt:[119,22,72,118,101],image_scn_mem_lock:112,llvmanalysi:52,true_branch_weight:3,slightli:[26,70,72],xor64rr:86,dw_tag_array_typ:[72,106],selectiondagisel:22,basenam:106,expandop:66,mbb:[86,54],creativ:54,mcinstlow:86,wrap:[7
3,24,70,105,45,43,72,21,94,48,106,51,27,31,115,56,4,17,18,19,20],msp430:[24,86,72,89],data32bitsdirect:54,suffici:[24,105,63,104,32,75,5,21,42,45,88,85,31,72,74,67,29,119,17,18,51],support:[80,25,42,57,88,115],sub_rr:119,happi:[16,47,52],sub_ri:119,width:[88,80],cpprefer:17,distsubdir:67,icon:84,use_back:17,headach:33,setxyzzi:70,"0x2413bc":78,fpga:86,offer:[75,31,94,17,88],unrool:11,refcount:75,strike:[43,20],dllstorageclass:[72,115],multiprocessor:[75,78],reserveresourc:86,profdata:[97,62,69],mymod:67,insidi:70,reiter:72,handili:70,fermi:86,dump_valu:[13,14,15,16,20],rerun:67,isexternalsymbol:54,adopt:[4,31,27,70,86],mirror:75,proven:[32,47,114,51,16,72],flagsflat:94,ericsson:72,build_phi:[14,15,16],bswap:66,relax:[74,31],role:[70,33,34,106,56,30,19],finalizeobject:[73,41],presum:72,smell:17,roll:[70,104],mri:86,legitim:70,notif:[84,42],intend:[24,66,86,62,99,42,75,111,21,46,88,107,27,51,5],createargumentalloca:[41,47],substract:72,"__except":111,cudamalloc:11,intent:[99,72,86,47,
27,92,80,16,30],keycol:71,dyn_switch:70,"1s100000s11010s10100s1111s1010s110s11s1":17,padparam:111,cumemcpyhtod:8,pre_stor:86,time:[62,42,86,88,89,57,3,115,85,60],push:[75,86,70,41,85],image_file_dl:112,corpu:26,breadth:[82,45,18],mrmsrcmem:54,ptrtoint:51,oss:26,sparctargetmachin:54,osi:100,aptr:72,const_nul:[14,15,16],image_sym_type_short:112,decid:[63,0,74,72,66,56,47,2,13,15,16,17,19,21,106,78,80,62,84,111,31,94],herebi:70,pem:26,decim:[99,21,94,113,23,72,119],x08:112,decis:[70,0,74,31,86,85,50,27,51,80,111,13,72],x03:112,x01:112,macho:[73,86],x04:112,painlessli:21,uint32_max:106,cudevicecomputecap:8,vmcore:21,lrt:11,fullest:70,exact:[32,70,111,55,75,17,21,106,88,78,92,76,28,72,35],numlin:68,solver:86,tear:111,unsupport:[86,54,33,1,88,96,10,37],team:[52,96],cooki:[72,17],prevent:[32,70,0,74,4,72,41,42,43,5,100,47,10,16,17,20,75,21,106,78,31,86,87,27,90,67],dcmake_cxx_flag:9,numroot:75,heavyweight:17,relocat:[73,82,72,54],regex_t:26,filenameindex1:68,lazili:[13,92,17,115],currenc:[
13,86,27,50],thecu:41,merge_bb:[14,15,16],current:[93,32,94,33,34,114,1,79,48,37,3,71,4,70,56,72,6,73,39,40,41,86,8,43,5,45,100,9,2,49,50,10,12,51,47,13,14,15,16,17,18,19,20,68,54,105,75,76,21,66,106,78,117,22,23,80,82,57,96,99,24,62,25,74,111,26,42,87,88,89,64,65,27,90,52,115,116,28,67,30,31,119],image_scn_cnt_cod:112,i256:72,objdir:[67,89],oeq:72,intraprocedur:85,adc64rr:6,cudevicegetnam:8,dropdown:84,autogener:27,live_begin:75,splice:[72,17],address:[62,80,42,57,88,115],along:[73,24,86,62,104,75,76,63,88,113,11,70,51,115,71,114,72],fnstart:86,ffast:0,cur_var:16,volumin:17,checksum:26,commentstr:54,errorhandl:31,queue:[78,17,54],throughput:51,replaceinstwithvalu:17,safepoint:[75,72],mipsel:89,bpf_ld:86,commonli:[70,54,75,17,115,72],ourselv:[70,106,8],ipc:4,ipa:61,love:17,"2ap3":23,pentium:[24,54],prefer:[88,42],ipo:[34,61],src2:[86,6,119],regalloc:[78,82,79,86],src1:[86,6,119],fake:82,instal:[103,24,66,62,37,100,36,89,65,11,117],llvm_lib_search_path:24,anothercategori:21,virtreg:8
6,image_sym_class_nul:112,abbrevid:115,scope:[70,42,75,85,27,51,115,111,81,118,5],tightli:[41,43,56,47,2,49,50,70,13,14,15,16,72,19,20],"66ghz":117,peopl:[24,40,86,84,105,39,33,21,45,70,66,78,27,12,4,72,18,100],n2627:70,claus:[86,27,72,111],refrain:[72,96],enhanc:[27,70,118],dagarg:30,linkmodul:67,langref:[66,51,88],easiest:[24,40,109,54,88,50,78,12,96],behalf:[27,84],b_ctor_bas:5,subel:72,descriptor:[41,54,106,90,115,72],valuet:17,whatev:[32,94,62,105,24,72,21,42,111,4,5],problemat:70,encapsul:[70,104,58],test_fuzz:26,recycl:86,setrecordnam:115,optnon:72,r11b:6,r11d:6,"0x00001c00":86,fpu:[72,31,9],parameter:119,r11w:6,vec0123:72,remap:86,motohiro:86,getsigjmp_buftyp:70,dw_apple_property_gett:106,spot:[32,26,96],mrm4m:54,mrm4r:54,succ:70,isfloatingpointti:17,date:[24,99,42,33,31,49,96,37,89,67,14,85,119],shuffl:[1,72],data:[88,80,42],codes:6,stress:[70,69],indexloc:17,ssl:26,disable_auto_depend:67,stdio:[24,65,37,14,13,4,15,16,92],stdin:[41,106,10,13,14,15,16,5,19,20],mangl:[114,70,
27,72,106],fp4:[6,119],sandbox:[33,9],fp6:[6,119],fp1:[6,119],fp0:[6,119],fp3:[6,119],fp2:[6,119],callabl:[70,72,8],iftmp:[41,47,2,49,14,15,16],untest:33,operand_type_list_end:54,my_funct:8,llvm_library_vis:75,revisit:74,numbyt:90,x86retflag:119,overhaul:[31,96],thumb:[86,27,70],image_sym_class_block:112,precedecnc:[41,47,2],instantli:17,"__stack_chk_guard":72,jit:[85,62,89],canonicalis:80,image_sym_class_end_of_struct:112,ideal:[28,74,70,17,54],mips32r2:31,outli:111,mips32r5:31,mips32r6:31,smarter:21,isbinaryop:[41,47,2],"0x00000147":106,inpredsens:71,therebi:[21,90],"0x00000140":106,machineconstantpoolvalu:76,mcode:23,revers:[32,61,80,105,5,31,72,17],llvm_src_dir:[100,36,89],separ:[86,35,97,70,4,72,8,5,9,48,50,10,52,54,105,75,21,106,78,22,114,60,24,62,26,94,88,89,27,90,19,115,56,28,67,109,92,119],xctoolchain:62,dwarf2:41,image_sym_class_end_of_funct:112,complextyp:112,sk_squar:104,compil:[85,115,80,42],argvalu:[21,101],registertarget:54,"__has_attribut":22,blx:23,movsx64rr32:86,"0
x100":106,toolchain:[70,86,62],blk:17,"0x1c2":23,libxxx:9,getschedclass:54,roots_iter:75,pseudocod:54,million:[72,17],removefrompar:17,crazier:[14,49],"byte":[74,38,72,68,66,99,42,13,14,15,16,17,19,20,54,105,106,57,80,26,86,87,88,90,115],reusabl:86,departur:67,jitcompilerfunct:54,setdefault:31,ifuzz:26,sysconfdir:67,modest:70,recov:[93,111,5,90,72,17],neglect:35,arraytyp:17,oper:[3,70,62,115,42,86,88,57,79,80,82],onc:[93,94,111,33,34,35,1,96,97,37,70,4,72,6,73,39,7,86,42,43,116,100,47,49,50,12,74,13,14,16,17,19,20,54,105,75,92,21,77,40,78,24,61,62,85,26,63,89,65,27,56,115,66,67,109,30,119],iaddroff:86,coveragemappingdataforfunctionrecord1:68,coveragemappingdataforfunctionrecord0:68,printinformationalmessag:21,symmetri:10,open:[116,70,27,62,86],lexicograph:[34,70],rmw:88,addtmp4:[43,20],f89:8,f88:8,convent:115,bite:100,f80:72,enable_optim:[64,67,89,96],optlevel:21,draft:[24,106,88],addtmp1:[13,50],lnt:[10,33,35,9],getsubtarget:54,conveni:[32,70,1,72,68,40,8,100,2,49,50,10,12,14,15,17
,52,104,21,24,26,86,27,119],goldberg91:75,usenamedoperandt:54,fma:86,sometest:35,programat:[15,86,2],artifact:[34,26,105],"__apple_namespac":106,llvm_parallel_compile_job:62,vec012:72,third:[94,34,35,96,70,72,68,40,41,43,12,74,17,52,20,54,105,75,21,106,78,24,111,86,27,90,115],rival:17,rzi:8,param2:17,param1:17,"0x12345678":106,sai:[40,41,104,99,35,45,43,5,21,86,12,51,72,67,71,4,105,109,17,18,20],nicer:[21,41,17,94],profiledata:72,argument:[103,86,62,25,42,116,1,69,97,70,80,38,82,114,118,5],second_tru:72,sar:86,saw:[78,14,92,49],entrytoken:86,notw:5,xxxgenregisterinfo:54,wrapcolumn:94,destroi:[86,54,17,31,94,48,78,111,72,100],libpath:107,note:[62,115,25,42,88,89,57,80,85],denomin:70,take:[32,94,111,33,34,104,1,79,48,37,70,38,71,72,73,7,41,86,8,43,5,45,100,47,2,49,50,12,74,13,14,15,16,17,18,19,20,54,105,75,92,21,77,40,106,78,22,80,58,82,57,95,24,110,85,26,42,112,88,89,113,65,27,90,56,115,66,67,109,30,31,119],llvmcreatesimplemcjitmemorymanag:90,funcion:8,printer:[28,75,29,86],atomic_:8
8,buffer:[72,40,41,43,56,47,2,49,50,12,13,14,15,16,17,18,19,20,106,111,26,92],fcc_ug:54,compress:[24,62,115,38,67,17],private_segment_align:25,insertel:[5,80],abus:17,homepag:[24,37],allevi:[72,21,86,17],"_function_nam":23,drive:[28,74,36],axi:0,event:[62,17,90,74],p5600:31,merit:70,identifierstr:[41,43,56,45,47,2,49,50],cclib:[15,16],objptr:72,slot:[111,86,48,51,38,72],xmm:[72,5,54],xmo:108,host_x:11,activ:[39,70,54,42,75,17,53,86,48,78,27,90,111,72],v2size:42,freebsd5:86,host_i:11,codeblock:75,v16f32:72,assing:34,dominatortre:78,flagscpu1:94,clang:[68,27,62,105,111,79,1,70,88,89,101,97,11,3,51,5,100],x86reloc:54,run_long_test:10,prime:[41,43,56,47,2,49,50,13,14,15,16,19,20],borrow:72,specialsquar:104,getframes:75,openorcreatefileforwrit:4,xmax:[15,2],clenumvalend:21,where:[70,1,97,3,5,68,66,99,11,85,21,77,80,60,62,111,86,88,89,113,27,115,118],compute_pgm_rsrc2_user_sgpr:25,sinbio:26,deadlin:27,dw_at_apple_property_sett:106,callseq_start:74,arglist:72,xxxtrait:94,x86targetmachin:86
,x24:112,build_mul:[13,14,15,16,20],getindex:54,"_except_handler3":111,assumpt:[40,41,72,86,70,106,79,12,111,5],screen:33,secnam:23,imm32:86,opval:54,sparc:[86,88,89],uncondition:[86,41,23,42],dcommit:24,genericvalu:[13,14,15,16],eflag:[76,6,119],do_safepoint:74,extern_weak:[72,115],mani:[93,32,63,0,33,47,35,70,48,37,3,104,4,72,100,40,86,8,43,5,45,46,9,2,49,50,10,11,12,74,13,14,15,16,17,18,19,20,54,105,75,56,21,66,106,78,80,60,24,84,85,26,42,88,94,90,115,111,28,67,31],qhelpgener:62,dw_at_mips_linkage_nam:106,unistd:4,sccp:61,constant:[68,66,70,42,21,86,88,11,115,38],boat:70,curs:[116,1],printstar:[14,49],fib:[32,41,45,47,49,14,16,18],add16mr:6,image_scn_align_4096byt:112,ismod:119,parseifexpr:[41,47,2,49],inst_begin:17,add16mi:6,reflex:34,constantfoldcal:66,symobl:23,thousand:32,release_15:24,ppcisellow:66,former:[74,86,88,57,51,76,56,19],standard:[88,80,42],combine1:86,combine2:86,emitalign:75,columnstart:68,polli:62,view_function_cfg:14,movsx16rm8w:86,lto_module_get_symbol_attribu
t:92,canon:[32,17,106,51,80,72],blah:[21,70,26],pthread:[11,72],ascii:[41,99,45,43,56,26,47,2,49,50,106,115,13,14,15,16,72,18,19,20],typedescriptor2:111,binari:[68,7,86,62,110,95,21,77,70,103,113,97,27,23,108,115,81,98,85],devcount:8,srem:86,unhandl:111,irread:62,"0x1603020":101,getfunct:[41,43,47,2,49,50,78,75,17],extern:[70,62,99,115,86,57,114,80,82],defi:72,sret:[72,115],defm:119,fnname:[41,43,56,47,2,49,50],dw_form_ref_udata:106,clobber:42,dereferenc:[93,51],runtimedyldmacho:73,noencod:86,llvmlinkmodul:31,addmodul:[47,2,49,50],resp:[72,17],remov:[70,34,96,97,5,7,99,8,72,100,51,95,86,85,104,21,77,79,58,24,61,62,111,42,89,64,27,67,92],rest:[24,75,72,26,86,106,27,92,115,34,81,4,109,5,76,17],checkcudaerror:[11,8],fmadd:86,gdb:86,unmaintain:6,invalid:[32,70,74,1,72,73,41,42,43,56,47,2,49,50,13,14,15,16,17,19,20,54,105,21,77,106,78,24,61,111,26,94,113,90],outlin:[78,86,27,111,94],loadable_modul:[10,67,78,75],cond_fals:[16,47],r13w:6,"__builtin_trap":26,ghostli:17,"__imp_":72,littl:[86
,115,80],instrument:[68,24,32,26,105,113,97,3,72],r13d:6,r13b:6,exercis:[10,40,12],dwarfdebug:106,featurev8deprec:54,mrm2m:[54,119],around:[32,70,34,4,72,40,41,42,56,100,48,49,12,14,17,54,105,75,21,106,78,58,24,111,88,27,28],libm:[13,43,50,72,20],libc:[24,40,70,72,26,27,12,17],unveil:[45,18],libz:72,traffic:[47,16,17],dispatch:[111,90,56,72,19,17],llvm_lib:62,world:[68,24,84,75,106,37,109,72],mrm2r:[54,119],find_program:62,intel:62,"__gxx_personality_v0":111,integ:25,timepassesisen:21,inter:[3,61,42,27,51,4,72],manag:[93,33,74,96,37,72,73,40,42,116,100,47,2,49,50,12,16,85,54,105,75,78,24,61,84,17,90,117],pushq:74,attrlist:22,a64:80,catchpad:111,llvmgetbitcodemoduleproviderincontext:31,handshak:26,pushf:86,pred_iter:17,constitut:[10,17,115,80],pod:70,stryjewski:32,exig:17,issiz:17,definit:[80,86,88,57,3,115],exim:26,parseextern:[41,43,56,47,2,49,50],evolv:[27,92],noop:72,definin:72,nonintuit:39,notabl:[66,62,105,17,31,86,89,72],ddd:99,pointnum:75,power:[32,36,48,72,6,108,42,43,5,45,4
7,2,49,50,102,13,14,15,16,17,18,19,20,21,84,25,31,86,56,92],isloopinvari:17,blockaddress:72,image_sym_type_union:112,n1984:70,n1987:70,n1986:70,ispic:54,standpoint:17,mov64rm:76,isset:21,mingw32msvc:86,acc:17,spiffygrep:21,gplv3:65,aco:42,acm:[75,86],printmethod:54,compuat:61,powerpc64:[108,72],libtool:[24,100,67],industri:39,invert:[10,72,51],specialfp:119,srcloc:72,cflag:[67,52],surviv:[111,19,56],homeless:17,asymptomat:116,basictyp:72,ehptr:111,hex:[26,72],movsx64rr16:86,kaleidoscop:[34,31,17],isloadfromstackslot:54,verbatim:[81,21,54],thedoclist:94,mantissa:72,conclud:[14,15,2,49],htpasswd:27,createjit:73,"__anon_expr":[41,43,56,47,2,49,50],clenumv:21,categor:[32,21,22,54],conclus:[34,45],ifunequ:72,pull:[24,70,88,84],tripl:[115,89],dirti:70,rage:38,agrep:35,inaccuraci:72,emitprologu:54,gcolumn:0,puls:26,uid:99,creat:[68,103,77,62,99,111,21,1,79,57,89,107,97,27,23,80,70,86],certain:[74,1,72,68,66,99,42,5,47,50,13,16,17,75,76,21,78,23,80,24,86,64,90,67,119],numregion:68,getnamedo
perandidx:54,creal:[15,2],movsx32rr8:86,googl:84,discrimin:[70,86,72,104],collector:[100,115],emphas:[70,109],collis:[72,70,17,106],writabl:106,freestand:72,genuin:17,of_list:[13,14,15,16,19,20],benchspec:35,bpf_ldx:86,numexpress:68,spiffysh:21,allowsanysmalls:17,mask:[70,75,86,51,58,5],shadowlist:54,tricki:[75,78,70,88],mimic:70,createuitofp:[41,43,47,2,49,50],prealloc:17,cpp:[70,0,34,4,101,5,66,41,8,43,56,100,47,2,49,50,10,103,54,75,21,106,78,22,24,62,26,86,89,67],cpu:[94,54,34,31,1,9,36,78,11,79,115,58,82,86,72,26],illustr:[45,43,72,21,47,106,78,92,80,56,13,16,17,18,19,20],labeltyp:17,scc:61,dw_at_apple_properti:106,fntree:34,astcontext:70,rewrit:[32,61,104,54,74,47,70,16,72],add16ri:6,incap:[40,12,115],add16rm:6,dsl:[6,102],tail:115,add16rr:6,introduc:[32,74,48,72,6,54,42,5,47,2,49,34,14,15,16,17,104,96,31,86,88,90,119],getframeinfo:[86,54],"102kb":21,getaddress:[47,2,49,50],gcov_prefix_strip:97,candid:93,element_typ:[13,14,15,16,20],attr0:115,attr1:115,strang:[70,80],condition:
[75,1],quux:70,pedant:62,sane:[45,62,18,88],small:[70,34,35,96,38,4,72,68,39,41,8,116,45,10,51,17,18,104,105,75,21,106,78,82,85,26,86,113,27,90,115,28],release_xi:96,dsa:61,mount:24,quicker:36,"__image_info":72,sync:[24,26,94,88,8],past:[41,84,54,105,17,70,2,27,74,15,72,119],pass:25,howev:[93,70,0,74,35,48,71,4,72,6,73,40,99,42,43,100,47,2,49,50,10,12,13,14,15,16,17,105,75,76,21,106,78,23,80,24,84,85,31,86,87,88,64,65,27,90,115,111,28,67,109],trick:[39,47,104,72,45,9,22,27,17],deleg:[111,70,72,88],xor:86,registerregalloc:78,clock:[78,72],section:[86,62,99,25,55,115,1,42,69,88,70,80,82],delet:[24,86,99,8,34,26,42,5,85,65,70,72,100],succinct:1,letlist:30,contrast:[104,43,111,86,78,20],hasn:[78,17,105],full:[24,103,70,62,101,25,42,86,9,48,89,88,81,27,28,114,96,118,100],hash:[24,42,34,86,27,72,17],vtabl:[70,5,57],unmodifi:74,tailcal:86,blocknam:115,inher:[72,100,17],parenthesi:[56,70,19],islvalu:70,simpleproject:62,myownp3sett:106,shufflevector:[5,80],prior:[68,24,111,21,86,48,78,27,115
,28,72],lto_module_get_symbol_nam:92,pick:[86,62,84,105,75,26,63,9,70,80,82],action:[24,66,70,84,54,111,17,86,78,3,74,67,72],narrowaddr:72,token_prec:[13,14,15,16,19,20],via:[73,32,86,62,24,92,77,9,89,101,65,93,23,111,81,67,72],depart:[70,99],dw_tag_namespac:106,ifcond:[41,47,2,49,14,15,16],vim:[24,109,6,67],memrr:54,image_sym_class_member_of_union:112,ifcont:[41,47,2,49,14,15,16],unbias:60,decrement:111,select:80,x44:112,functionaddress:93,llvm_doxygen_qch_filenam:62,targetselect:[41,47,2,49,50],objectivec:72,isconst:[17,115],more:[62,25,42,86,88,89,115,85],isintegerti:17,door:104,tester:69,hundr:51,f3_2:54,zeroext:[72,115],addcom:75,webkit:[90,72],multiset:17,compani:27,cach:[73,32,41,62,42,17,86,36,106,78,90,88,72],uint64:[93,90],llvm_on_unix:4,enable_if:[56,104],sparcv8:72,at_apple_properti:106,x86callingconv:54,isnullvalu:34,returntyp:[75,72],learn:[24,40,70,84,72,47,109,12,34,16,17],cmpinst:17,legalizedag:66,bogu:78,scan:[78,40,86,75,34,26,1,79,10,22,12,13,82,70],challeng:[74,
15,70,2],registr:[75,100,108,101],accept:[24,70,104,25,8,5,21,100,96,65,37,27,23,72,34,84,29,17,30,119],pessim:[93,32],x86instrinfo:54,v_reg:86,huge:[24,70,10,22,27,6],llvmgrep:24,readobj:69,attrpchwrit:22,exprsymbol:[47,2,49,50],clangxx:10,appenduniqu:72,simpl:[70,1,37,5,68,66,42,85,104,105,75,21,79,80,82,114,60,24,62,86,88,27,115,28],isn:88,loophead:[72,2,49],plant:78,referenc:[34,72,41,43,56,47,2,49,50,13,14,15,16,17,19,20,54,76,21,106,57,114,61,92,65,115,30],spillalign:54,variant:[78,32,54,17,21,10,28,111,90,72,14,13,4,15,16,5,18,19,20],freetyp:26,unsound:74,plane:[15,2],dllvm_use_sanit:26,maywritetomemori:[17,88],thought:[30,86,72,74],circumst:[54,5,47,50,78,72,111,13,67,16,17],github:[24,26,17,84,53],arcanist:[39,84],author:[86,27,70,100],llvmbitcod:66,imm_eq0:6,atan2:[45,18],nvidia:[11,86,8],returns_signed_char:72,constitu:[14,49,111],ith:17,trade:[85,17],i386:[81,86,72],paper:[39,70,86,17,108],vec2:[72,17],vec0:72,vec1:[72,17],bou_unset:21,nifti:[78,14,40,12,49],bpf_jmp:86,a
lli:72,bypass:[11,72],superflu:105,slight:23,targetselectiondag:[66,86,54],image_sym_type_void:112,cudamemcpi:11,argsv:[41,43,47,2,49,50],cond_next:[16,47],authent:[117,108],achiev:[62,92,26,88,51,71,72],tokcodefrag:30,lto_module_is_object_file_in_memory_for_target:92,found:[32,63,111,0,33,74,96,37,38,71,4,72,39,41,86,8,43,5,47,2,49,50,10,11,15,16,17,52,20,54,75,21,106,78,99,24,62,110,85,31,42,89,94,27,116,67,92,26],gettermin:17,errata:108,bpf_mem:86,quesion:34,"0b000011":54,procedur:[61,108,45,17,21,96,3,51,80,34,72,18,52],realli:[66,70,62,21,88,27],loweralloc:78,getcalleesavedreg:54,reduct:70,reconstitut:72,ftp:24,massiv:[67,31,22,46],ftz:8,stackframes:75,research:[39,35,66],sparingli:51,x86genregisterinfo:[86,54],occurr:[5,115],ftl:[90,72],loopbb:[41,47,2,49],isfirstclasstyp:34,distoth:67,mrm0r:54,numabbrevop:115,believ:[70,72,2,49,50,27,13,14,15,17],"__cxa_begin_catch":111,mrm0m:54,fnptrval:72,getdebugloc:106,xxxend:17,advanc:[21,70],struggl:24,amper:36,testament:[45,18],ge_miss
ing_jmp_buf:70,new_then_bb:[14,15,16],instprint:22,dw_at_high_pc:106,curesult:8,only_ascii:26,unprofit:32,number:[80,42],sometim:[32,70,34,5,54,56,100,10,11,86,85,104,105,21,22,72,24,17,94,27,115,67],obj_root:[24,89],horribl:70,dw_at_low_pc:106,"0xxxxxxxxx":106,exponenti:[32,21,72],getpoint:72,checkpoint:111,unrecogniz:114,functionast:[41,43,56,47,2,49,50],illeg:[32,86,105,8,17,21,0,74,72,26,100],dfa:[86,22,118],fptr:41,relationship:[75,111,5,34,71,72],meabi:79,bio_writ:26,dagarglist:30,consult:[24,61,62,99,39,37,78,11,67],compute_pgm_rsrc1_vgpr:25,aad:86,llvm_svn_rw:101,tokstr:30,seamlessli:92,reus:[86,106,78,27,90,72],arrang:[78,32,104,75,21,86,10,72],comput:[68,70,108,42,86,51,38,85,60,100],packag:[24,62,9,36,96,67,60],qpx:72,returns_twic:72,flto:65,equival:[32,70,74,72,40,8,12,34,17,105,75,21,23,80,82,24,25,111,86,88,113,115,67,30,119],odd:[21,27,70,63],self:[68,86,115],addrrr:54,also:[62,115,25,42,86,88,89,3,80,85],without:[68,115,103,70,62,99,113,116,21,86,88,89,85,97,27,80,11
1,82,101,5,60],ex2:8,ptrb:8,ptrc:8,coff:[86,108,115],ptra:8,pipelin:[78,32,54,8,74,47,10,11,51,115,38,13,14,15,16,72],unset_vari:67,rhs_val:[13,14,15,16,20],plai:[40,34,45,78,12,30,18],"_z3foov":72,plan:[24,100,8,75,86,48,27,17,6],exn:72,ptr7:72,src_reg:86,"0x14c":112,ptr2:72,ptr3:72,ptr0:72,ptr1:72,ext:80,abnorm:[4,51],exp:3,rewritestatepointsforgc:75,pubnam:106,gold:[24,86],getsymbolnam:54,xcode:[24,62,101],gcmetadaprint:75,session:[109,17,101],tracevalu:32,ugt:72,impact:[70,75,17,106,51,72],fputc:[41,47,2,49,50],cr0:72,cr7:72,addrri:54,writer:[86,46,88,115,118],solut:[24,100,62,21,86,88,80],printdatadirect:54,baseregisterinfo:22,llvm_executionengin:[13,14,15,16],factor:[70,0,17,86,72,6,119],bernstein:106,i64imm:54,llvm_obj_dir:100,agg3:72,agg2:72,mainten:[71,27,92],bitmap:115,llvm_link_llvm_dylib:62,n1757:70,f2_1:54,synthet:54,f2_2:54,synthes:[13,66,70,106,50],"__chkstk":23,machinememoperand:88,coerce_offset0:5,link_compon:[67,52],set:25,image_sym_class_member_of_enum:112,seq:112
,creator:[78,62],overwhelm:[45,18],startup:[24,70,8,1,64,72],cbpf:86,emac:[24,70,6,67],sed:[24,100,67],sec:72,sea:[108,25],overboard:70,analog:[75,111,74,119,72,17],v_mov_b32:25,reglist:54,parsenumberexpr:[41,43,56,47,2,49,50],lto_codegen_cr:92,topmost:75,mymaptyp:94,subdir:67,documentlisttrait:94,thrive:39,signatur:[24,99,43,74,86,78,80,38,72],machineoperand:[86,54],javascript:[72,40,12,90],libnam:[78,67,103],myocamlbuild:[13,14,15,16,20],disallow:[105,74,21,90,28,72],nohup:33,dividend:[11,86,72],proj_src_dir:67,sparctargetlow:54,last:[70,0,74,1,96,37,72,41,99,104,5,45,2,50,10,15,17,20,54,21,78,111,31,86,27,115,109,30,119],cmake_cxx_flags_relwithdebinfo:24,whole:[32,70,34,35,72,66,99,56,9,49,50,10,51,13,14,17,19,75,78,58,111,26,86,27,28],lower16:23,sink:[21,42],load:[62,80,42,88,115,85],episod:[14,49],nakatani:86,dw_tag_namelist:106,hollow:94,lex:[41,45,13,14,15,16,30,18,19,20],functionpass:[32,17,54,42],"0x100000f24":81,getsourc:24,worthless:70,static_cast:[31,41,47],devic:[7,98,1
10,8,95,77,36,11],perpetu:27,"0xf":119,llvm_abi_breaking_check:62,xab:26,devis:52,firm:67,gettokpreced:[41,43,56,47,2,49,50],fire:[70,85],nologo:107,registerpass:78,rdtsc:72,uncertain:70,straight:[42,74,34,45,86,11,56,58,4,119,17,18,19,20],corpora:26,histor:[70,105,17,88,10,72],durat:[78,86,42],passmanag:[73,21,17],seed:[26,44],error:[86,62,88,89,42],dvariabl:62,v1size:42,pound:[67,94],binutil:[117,24,108,9,65],genregisternam:86,miscommun:27,inst_invok:115,seem:[86,62,104,42,75,34,21,46,80,105,85],chase:63,i29:72,llvmparsebitcod:31,irrelev:[105,42],initializerconst:72,i20:72,i24:72,x64:[117,24,5],shorter:113,funni:[16,47],decod:[72,115],dllvm_enable_sphinx:24,built_sourc:67,boringssl:26,global_end:17,bitread:28,predreg:71,dw_at_declar:106,stack:42,recent:[24,84,33,111,26,94,50,75,27,72],call32r:119,eleg:[40,56,49,50,12,13,14,19],rdi:[76,86,72,6,90],dw_apple_property_readwrit:106,llvm_unreach:[34,70],person:[111,63,115],parse_prototyp:[13,14,15,16,19,20],expens:[93,32,70,54,34,21,88,
78,11,111,17],call32m:119,llvm_tablegen:62,always_inlin:11,crosscompil:[86,9],else_v:[14,15,16],use_trac:26,debug_level:21,simd:[82,79,72,0],numshadowbyt:90,sidebar:96,lfoo:86,smooshlab:39,eager:17,fnast:[41,43,47,2,49,50],input:[95,7,46,98,42,116,1,85,97,79,38,82,114,86,5,91],earlycs:51,transpar:[66,70,84,105,17,21,92],subfield:119,intuit:72,dw_tag_ptr_to_member_typ:[72,106],"0x00000048c979":26,formal:[72,119,17,6,34],sgi:17,todefin:22,atomicexpand:88,ivar:106,stylist:70,threadsaf:75,image_sym_type_nul:112,parse_toplevel:[13,14,15,16,19,20],ii32:119,x86framelow:86,moduleid:[10,43,20],encount:[54,17,86,114,51,111,72],image_file_debug_strip:112,sampl:[11,3,21,113],sight:[16,47],itanium_abi_tripl:10,attrvisitor:22,libssl:26,"_bool":[16,47],p5i8:8,foreign:[100,62],llvm_obj_root:[10,67,35,52],xxxgendagisel:54,agreement:27,wget:[24,26],sub:[1,86,88,89,115,5],materi:[34,31],codeemittergen:22,image_sym_type_long:112,condbranch:54,oneormor:21,getinsertblock:[41,47,2,49],putchard:[40,41,47,2
,49,50,12,13,14,15,16],primarili:[24,7,46,32,75,48,26,1,2,55,36,28,15,86,17,59,119],seamless:65,xxxinstrformat:54,requires_rtti:64,contributor:27,volcan:25,pcre:26,occupi:[72,99],span:[78,70,6],kaleidoscopejit:[41,47,2,49,50],submit:85,custom:[116,70,86,5,62],createcondbr:[41,47,2,49],parse_arg:[13,14,15,16,19,20],expound:106,subgraph:32,atop:75,nodupl:72,atoi:72,link:[103,70,62,99,42,116,86,88,69,57,107,97,89,85],atom:25,line:[70,95,1,97,38,5,7,98,99,116,85,77,79,81,82,59,62,110,86,88,89,113,114,118],bpf_exit:86,workitem_vgpr_count:25,cie:61,cin:100,intim:70,hex8:94,"0xffffffff":[72,115],doc:[116,62,89],copy_:31,call_site_num:111,"char":[70,0,101,72,68,41,99,8,43,56,47,2,49,50,11,13,14,15,16,17,18,19,20,54,105,21,106,78,26,42,92],gcfunctioninfo:75,superscalar:11,srcvalu:74,linkonceodrlinkag:17,tok_unari:[41,47,2],intrepid:[56,19],xxxcodeemitt:54,ud2a:86,kwalifi:112,scrape:1,download_prerequisit:24,cleanupret:111,disp32:86,isnotduplic:6,"0x000000000059c583":101,caml:[18,19],lang:21,
mayalia:42,land:[111,48,27,74,72,76],x86codeemitt:54,algorithm:42,agg:72,getregisterinfo:[86,54],fresh:[24,26,67],hello:[68,24,37,72,119],mustalia:42,llvmcontext:72,code:[115,25,42,57,88,3,80],partial:[86,61,72,118],resultv:72,scratch:[72,86,17,54],personalityfn:115,setcc:[86,17],globallisttyp:17,printimplicitdef:54,young:17,send:[7,98,95,79,86,88,27,51,118],tr1:17,sens:[40,88,62,99,105,42,43,72,21,86,48,106,70,12,74,17,100,20],getprocesstripl:41,sent:[39,27,84,95,96,79,74,113],xxpermdi:31,unzip:[33,24],flagscpumask:94,clearresourc:86,registeredarg:75,syntax:[86,70,25],tri:[32,62,54,34,45,86,50,78,85,109,72,18],bsd4:99,setconvertact:54,dname:21,complic:[24,66,70,104,54,0,75,111,26,48,88,10,37,72],trc:86,scalabl:42,tre:32,fewer:[75,32,74],"__llvm_covmap":68,race:[72,17,88],build_uitofp:[13,14,15,16,20],vehicl:70,use_s:17,monospac:109,natur:[24,70,104,105,75,5,21,88,113,27,92,51,111,72],odr:72,wors:[70,86,72,80],proj_obj_dir:67,psubu:10,rauw:[34,61,17],video:17,ueq:[47,16,72],index:[6
8,115,99,42,75,111,21,86,113,23,51,80],step_val:[14,15,16],targetregisterclass:[86,54],asmwrit:[75,66],getanalysisusag:42,henceforth:[87,72],paramti:115,image_scn_align_64byt:112,dyn_cast_or_nul:17,lllexer:66,leb:68,dw_tag_gnu_template_param_pack:72,mappingtrait:94,len:72,short_enum:72,bitstreamwrit:66,rglob:7,let:[68,63,84,104,8,34,21,42,106,5,109,64,117,92,72,74,71,105,86,17],ubuntu:[24,9,36],ptx30:86,ptx31:86,great:[70,75,45,86,2,78,27,51,67,15,17,18],survei:108,dllvm_enable_doxygen:62,force_off:62,technolog:[92,40,12,31],rdx:[74,86,90,6],flagshollow:94,cta:8,ifloc:41,qualifi:[86,70],somemap:70,sgt:72,pf1:34,pf0:34,sgn:72,llvm_enable_cxx1i:62,sge:72,movsx32rr16:86,"__________":17,getnumparam:17,eltti:[41,115],zip:[24,67],commun:[70,42,100,101,27,51],my_fmad:8,doubl:[32,86,34,37,72,40,41,108,104,43,5,45,47,2,49,50,12,13,14,15,16,17,18,19,20,54,21,94,115,56,67,119],upgrad:[27,55],next:[70,85,115],doubt:[109,104],n2439:70,commut:[32,86,54,42],fpregsclass:54,avx512:72,gladli:[24,37],
firstcondit:17,bunzip2:24,objectslo:67,uvari:62,get_instrinfo_operand_enum:54,folder:[24,62],devmajor:8,erasur:17,intregssuperregclass:54,thin:[107,31,17],gc_root:74,statepoint_token:74,dw_form_data4:106,n2431:70,weaker:72,dw_form_data1:106,dw_form_data2:106,n2437:70,process:[85,60,89,88],shadowbyt:90,preformat:109,high:[115,42],wavefront_s:25,befor:[62,25,42,86,88,80,85],fprintf:[41,43,56,47,2,49,50],streamer:86,dw_ate_signed_char:72,msvc:[70,111,31,86,23,56,17],adc32mi8:6,visitsrl:66,delai:[34,17],infeas:61,allocainst:[70,17,47,41,16,72],stand:[78,70,17,86,10,27,56,72,19],nullpointerexcept:93,overridden:[24,72,42],singular:[70,17],add32ri:6,xc3:112,loc0:90,loc1:90,xc7:112,xc4:112,x86registerinfo:[86,54],dw_at_apple_property_attribut:106,dw_tag_class_typ:[72,106],alloc:42,essenti:[54,75,17,77,88,115,34,30],install_prefix:62,sdiv:86,counter:[3,85,88,25,113],robot:39,element:[66,70,115,42,75,86,57,80],liveintervalanalysi:86,unaccept:27,allow:[115,86,62,99,42,116,79,1,70,88,57,97,3,80
,5],retval:[41,43,111,47,2,49,50,72],stepexpr:[41,16,47,2,49],movl:[72,5,90,74],decltyp:[70,72],fstrict:72,movi:70,typecod:66,move:[24,86,99,32,75,17,31,42,70,88,96,27,90,102,74,72,6,100],stacksav:48,vma:31,movz:[72,80],movw:[72,23],movt:23,ofstream:21,ldpxpost:76,movq:[74,90],perfect:[27,80],disambigu:[51,42],chosen:[70,75,86,1,80,72],cond_tru:[16,47],lastinst:54,decad:6,therefor:[68,32,86,105,8,75,17,21,94,88,78,27,90,80,111,29,72],python:[24,40,33,26,1,9,10,75,37,12,30],initializenativetarget:[41,47,2,49,50],overal:[84,105,75,111,86,49,22,27,14,72],innermost:0,facilit:[70,17,31,94,106,27,72,52],smovq:86,fcc_val:54,anyth:[32,70,37,72,6,100,49,50,13,14,17,20,104,106,79,82,24,86,88,89,27,90],cross_ov:26,xvjf:24,truth:[14,72,49],"0b111":119,llvminitializesparcasmprint:54,compute_xx:8,idxmask:72,subset:[40,105,8,72,35,1,42,106,10,27,12,90,17],"0x7fffffffe040":101,bump:[75,87,31,17],"0x400":106,lsampl:52,"static":[85,86,62,88,42],uiuc:27,differ:25,unique_ptr:[41,43,56,47,2,49,50],varia
bl:[88,42],contigu:[72,17,106],myregalloc:78,tok_if:[41,47,2,49],tok_in:[41,47,2,49],memorysanit:72,shut:[70,54],initializepass:42,bpf_dw:86,unpars:[56,1,19],tempt:[4,70,24],image_file_system:112,shortest:[34,30],shtest:1,spill:[74,86,90,54,82],runtimevers:[72,106],could:[93,70,1,71,5,42,72,100,48,51,85,104,105,75,21,58,24,62,26,86,88,89,65,27,117],opengl:[40,70,12],scari:[40,12,18,45],length:[68,99,21,1,80,115],enforc:[70,75,5,21,86,88,27,90,72,17,119],outsid:42,scare:27,spilt:86,softwar:[75,82,27,70],denorm:[94,72],add_pt:71,spaghetti:[45,18],selectiondagnod:54,fcontext:41,owner:[86,99],stringswitch:22,add_pf:71,featurev9:54,sparcgensubtarget:54,licens:70,system:[66,86,62,99,105,55,75,108,21,42,79,89,27,80,82,70,100],parse_oper:[15,16],gcse:[78,32,17],termin:[7,46,98,110,25,111,95,21,1,70,3,51,77,86,85,99],f_inlined_into_main:81,erron:[24,21],returnindex:58,ldrex:88,gotcha:70,endexpr:[41,16,47,2,49],baseclasslist:30,"12x10":72,haven:[78,35,70,72],datatyp:[21,86,17,18,45],bother:[1
6,47],arg_end:17,setfoo:72,featurevi:54,cgit:26,stricter:[5,88],f1f2:34,xxxregisterinfo:54,tdtag:22,getzextvalu:17,internalread:76,viewer:70,op_end:17,var_arg_function_typ:20,clearli:[70,27,90],optimis:[13,31],mdstring:3,"0x00002200":106,tramp1:72,accuraci:[32,72],add_llvm_unittest:62,at_typ:106,rvalu:70,type_of:[13,14,15,16,20],courtesi:27,griddim:8,poison4:72,poison3:72,poison2:72,incfil:67,setloadextact:54,comparison:[104,105,26,88,3,51,72],llvmlinkmodules2:31,stronger:[72,17,88,74],parsevarexpr:[41,47],face:[70,87,78,22,51,4],isbranch:6,brew:17,linkonc:115,fact:[70,72,40,99,42,100,47,2,50,12,51,13,15,16,17,104,105,21,78,24,61,111,86,27,28,30,119],movslq:90,dbn:24,borderlin:70,truedest:72,dbg:[85,72],bring:[40,70,75,74,12,51,17],rough:[119,30,88,105],trivial:[32,66,70,84,54,42,72,21,86,48,106,78,56,80,88,4,105,17,45,100],redirect:[41,116,26,57,96,10],isstor:86,getelementptr:[68,42,86,57,38,5],hash_data_count:106,should:[70,1,97,3,66,99,42,116,85,21,77,79,80,82,60,62,25,111,86,88,
89,27,115,118],jan:99,jal:31,suppos:[86,104,34,94,78,11,111,28,4,72],create_funct:[13,14,15,16],opreand:17,nonzero:[115,119],hope:[70,75,34,26,64,27,74],meant:[68,30,24,33,34,77,37,39,67,109,72,119,17],insight:[68,72],notat:[21,99],familiar:[24,41,104,25,8,34,45,86,49,78,11,111,51,67,14,18],memcpi:[88,42],autom:[24,84,86,22,27,6,52],group_segment_align:25,smash:72,isatleastreleas:88,symtab:17,machineconstantpool:86,reid:4,dw_ate_sign:[72,106],stuff:[21,86],booltmp:[41,43,47,2,49,50,13,14,15,16,20],inlni:81,comma:[72,21,94,49,89,14,29,17,119],unimport:[33,74],cmake_cxx_compil:24,temporarili:[67,85],binary_nam:81,oprofil:[64,62],writetypet:66,wire:100,op_iter:17,fakesourc:67,compute_factori:101,live_iter:75,sectionmemorymanag:73,unrecurs:[16,47,41],email:[24,40,61,84,39,88,27,12],superword:[61,0],dislik:27,linkonceanylinkag:17,memri:[86,54],use_iter:17,doxygen:[62,89],scalaropt:103,valgrind:[10,116,1,63],sdtc:54,etc:[70,62,42,116,86,88,27,115,91,5],"0fbf317200":8,vk_basicblock:70,preh
eader_bb:[14,15],position_at_end:[13,14,15,16,20],exprprec:[41,43,56,47,2,49,50],distil:10,bininteg:30,rpcc:72,chromium:31,v8p0f32:72,llvm_external_:62,triniti:108,insuffici:[4,72,36,54,106],path_to_llvm:24,immedi:[73,70,99,25,42,111,86,88,115,72,100],hex16:94,deliber:[70,90],image_sym_type_char:112,togeth:[32,70,111,0,34,35,72,68,40,99,42,43,5,45,2,49,10,12,14,15,17,18,19,20,75,56,21,77,106,78,114,80,60,110,85,26,86,113,27,116,28,119],allocationinst:17,sphinx_output_man:62,rbx:[86,6],dataflow:[47,16,72],cvt:8,reloc_absolute_dword:54,rbp:[86,6],suport:17,llvm_tools_binary_dir:62,p0f_isvoidf:74,lto_module_create_from_memori:92,objmakefil:67,auxiliarydata:112,cbtw:86,site:[32,42,75,111,1,48,57,37,72],sn_map:34,archiv:69,mybuilddir:62,incom:[54,72,86,47,49,27,14,15,16,17],surprisingli:[24,56,50,51,13,19],greater:[32,70,115,54,8,75,34,86,97,3,80,38,105,72],mutat:[75,70],referenti:32,basicblocklisttyp:17,lex_com:[13,14,15,16,18,19,20],android:31,dbgopt:106,preserve_mostcc:[72,115],phi:[1
11,86,70,115,38],kernarg_segment_align:25,expans:[68,54,72,86,97,51,58,30,76],upon:[73,100,54,75,17,77,106,27,67,72,52],foldmemoryoperand:[86,54],php:84,expand:[68,66,86,119,5,31,38,70,58,10,97,27,34,67,59,118,72,6,100],off:[70,74,36,72,6,40,41,99,8,43,45,47,2,49,50,10,12,13,14,15,16,17,18,20,24,62,85,86,64,27],mention:[115,39,70,62,104,25,74,17,21,86,87,106,80,34,28,72,119],diversifi:26,argnam:[41,43,56,21,47,2,49,50],exampl:[88,25,42],command:[70,62,42,116,86,5,89,85],svnup:24,filesystem:[1,9],outputfilenam:21,newest:[23,50],paus:[75,42],xec:112,glue:[86,100],web:27,makefil:[103,86,62,89,55],blockfrequencyinfo:[39,60],exempt:70,openmp:[24,27],target_opt:89,nonnul:[111,72,51],nvt:54,unintrus:72,dest:72,goingn:17,piec:[86,96,37,70,72,41,43,56,45,47,2,49,10,51,14,15,16,85,18,19,20,105,106,24,26,63,27,115,28,119],placesafepoint:75,core2:10,five:[111,21,86,17,50],tick:99,xe8:112,recurr:32,desc:[78,21,54],addsdrm:119,resid:[115,8,75,26,106,78,80,72],emmc:36,loopinfobas:17,isus:86,object
buff:73,byteswap:66,resiz:70,"0x29273623":106,captur:[72,40,41,43,5,47,2,49,50,10,12,13,14,15,16,85,19,20,56,21,106,86,90,115,66],vsx:72,main_loop:[13,14,15,16,19,20],build_exampl:67,destarchivelib:67,i64:[54,8,5,86,106,3,90,80,74,105,72,6],emitglobaladdress:54,safepoint_token:74,flush:[73,70,8,36,13,14,15,16,72,19,20],guarante:[32,74,72,42,100,47,51,17,105,75,21,106,57,78,22,24,111,31,86,88,27,90,67],ltmp1:74,"__syncthread":8,avoid:[86,85,115,80,42],image_sym_class_fil:112,arg_siz:[41,43,47,2,49,50,75,17],barlist:70,cmake_minimum_requir:62,stage:[39,54,8,33,34,21,86,96,97,56,116,92,19],"0x4200":106,c_str:[41,8,43,56,21,47,2,49,50,17,45],interven:90,nullari:[56,19],declcontext:104,bpf_mov:86,getbitwidth:17,not_nul:93,handleextern:[41,43,56,47,2,49,50],dw_tag_base_typ:[72,106],insidebundl:86,dereferenceable_byt:72,retcc_x86_32:54,takecallback:17,waterfal:117,mere:[32,84,105,43,74,37,72,20],merg:[97,62,86,5,42],behind:[86,8,5,63,70,72,58,71,17],createsubroutinetyp:41,bclinklib:67,valu
esuffix:30,multidef:119,textfileread:70,ssl_filetype_pem:26,p4i8:8,mandel:[15,2],mdnode:[3,72],"function":[115,25,42,57,88,80,60],reduc:[68,7,61,99,105,8,34,21,63,70,85,11,27,116,71,86,72],documentlist:94,getenv:4,dw_at_entry_pc:106,inst_cal:115,data16bitsdirect:54,lookup_funct:[13,14,15,16,20],evidenc:105,localexec:[72,115],llvmcreateexecutionengin:31,otherwis:[32,94,34,1,36,96,97,70,38,72,68,7,41,98,43,5,45,46,9,2,49,50,51,47,13,14,15,16,17,18,19,20,103,55,75,92,21,77,78,79,91,82,59,60,95,61,62,110,25,74,85,26,63,88,111,56,115,116,67,118,30,119],problem:42,"int":[94,0,34,48,37,70,71,101,72,6,68,40,41,86,8,43,5,45,100,47,2,49,50,11,12,74,13,14,15,16,17,19,20,54,105,75,92,21,106,80,81,24,85,26,42,112,88,65,111,56,116,109,30,119],inl:11,rightli:67,ini:28,ind:41,insertdeclar:41,ing:[32,70,43,47,13,16,20],inc:[24,54,76,86,78,81,11,22,71,67],bzip2:[24,67],nonetheless:72,optsiz:[72,115],libcxx:[33,24],lookup:[32,70,24,34,72,17],eabi:[31,79],varieti:[70,36,40,108,99,42,43,2,49,50,12,13,14
,15,17,20,75,106,24,61,111,31,86,88,90,115,28,30],getopt:21,liblzma:9,computearea:104,"0f3fb8aa3b":8,repeat:[32,33,34,106,85,111,29,72],defaultlib:37,kernarg_segment_byte_s:25,emitsymbolattribut:86,fexist:34,in0:72,in1:[86,72],in2:86,eof:[41,43,56,26,47,2,49,50,45],header_data:106,cumemfre:8,dumpabl:78,rabfik:99,eor:72,hashes_count:106,sourceloc:41,sm_20:[86,8],sm_21:86,untrust:27,child:[111,15,72,2,104],show_bug:26,rapid:27,oldest:50,"const":[68,66,70,104,42,75,92,21,86,48,11,72,26],r8b:6,r8d:6,deviat:[70,86,23],binoppreced:[41,43,56,47,2,49,50],thefunct:[41,43,47,2,49,50],r8w:6,rowfield:71,emploi:[72,17],printnextinstruct:17,getpar:[47,41,17,2,49],glibcxx_3:24,llvm_enable_ffi:62,cmd:84,upload:[84,96],reg:[54,8,76,86,90,29,5,119],"0x2a":80,unmanag:74,red:72,add_rr:119,add_char:[13,14,15,16,18,19,20],externally_initi:[72,115],callcount:17,eretnc:31,cmp:[72,26,86,17,32],abil:[66,77,86,45,75,72,21,94,47,2,49,106,101,29,14,15,16,17,18,52,51],soutbio:26,hork:119,consequ:[24,42,17,85,10,
90,111,67,72],image_scn_mem_shar:112,llvmbuild:55,disk:[70,92,26,1,106,28,4,72],renderscript:31,loop_bb:[14,15,16],qux:72,topolog:5,told:70,ontwo:72,somefunc:[70,17],mcoperand:86,pred_end:17,dw_op_bit_piec:72,myregisteralloc:78,dw_virtuality_pure_virtu:72,optzn:[63,47,2,49,50,13,14,15,16],"0f7f800000":8,aka:[41,42,43,72,45,86,47,2,49,50,56,13,14,15,16,17,18,19,20],werror:65,dcmake_cxx_link_flag:24,idnam:[41,43,56,47,2,49,50],instr:[68,62,75,86,113,97,118,119],setgc:75,sspstrong:72,ftoi:54,total:[32,34,26,87,106,88,78,115,38,72,35,17],bra:8,highli:[75,17,26,86,47,51,16,72,31,52],bookkeep:[32,17],plot:[15,2],postincr:70,afterward:[32,51,74],deref_bytes_nod:72,foster:[4,27],greedi:[86,21,79],simplifycfg:116,setreg:86,v_mul_i32_i24_e32:25,iscommut:6,llvm_enable_p:62,reinterpret:80,numberofauxsymbol:112,toolkit:[17,8],tblegen:22,valueenumer:66,armgenasmmatch:22,insignific:[90,46,72],err:[78,26,17,8],restor:[41,54,87,86,47,2,49,48,115,111,14,15,16,72],next_prec:[13,14,15,16,19,20],work:[7
0,1,97,38,5,68,66,108,42,116,100,85,55,75,21,79,82,60,62,25,111,86,88,89,113,27],foo_ctor:48,coalesc:[82,46,17,86],noreg:76,viewcfgonli:[17,49],unnam:[32,70,72,21,76,30],"16gb":117,novic:62,autodetect:[82,79,97],dllvm_enable_assert:[24,36],u64:8,indic:[68,27,62,99,42,111,21,1,70,115,3,23,80,38,86,60],llvmcore:[33,52],liter:[93,70,72,41,99,43,56,45,47,2,49,50,13,14,15,16,17,18,19,20,76,21,94,115,29,30,119],unavail:[88,54],xxxkind:104,constantstruct:17,createinstructioncombiningpass:[47,2,49,50],str2:119,ordinari:[68,94,72],lexloc:41,sever:[32,70,33,34,35,1,38,4,72,6,68,39,40,99,42,43,100,49,10,11,12,14,17,52,20,54,75,76,21,66,106,78,22,58,24,62,110,85,26,86,89,113,115,111,67,92,119],verifi:[86,85,57,115],bindir:[67,103],ssl_set_bio:26,recogn:[32,41,35,45,34,21,86,49,92,14,72,18],superreg:54,rebas:24,lad:21,chines:24,after:[62,115,25,42,86,88,89,80,85,60],hex32:94,lab:[117,39,26],law:70,demonstr:[68,104,54,43,17,50,13,72,20],sparccallingconv:54,domin:[75,24,11,70,72],sgpr:72,opaqu:[11
5,80],lto_module_dispos:92,kdatalen:11,recompil:[93,42,49,90,80,14],icmpinst:17,buildslav:117,noitinerari:[6,54],order:42,movhpd:5,ud2:86,diagnos:[78,46,0],use_camlp4:[13,14,15,16,19,20],offici:86,opnod:54,llvmsystem:67,pascal:72,noimm:6,getnexttoken:[41,43,56,47,2,49,50],flexibl:86,getattribut:34,bytecod:[115,89],isellow:22,setoperationact:[86,54],induct:[24,51,42],them:[32,94,111,33,34,35,97,37,70,71,4,56,72,68,39,40,41,86,8,43,5,45,100,9,2,49,50,10,11,12,51,47,13,14,15,16,17,18,19,20,54,104,75,76,21,106,107,78,114,80,58,105,99,24,62,84,110,74,85,31,42,87,88,89,113,64,27,90,52,115,116,28,67,29,92,119],dw_apple_property_atom:106,thei:[93,32,86,111,0,33,34,35,1,36,96,70,38,71,4,72,6,68,39,40,104,99,42,43,5,46,47,48,49,50,10,11,12,51,74,13,14,56,16,17,100,19,20,54,105,75,76,21,77,106,78,22,80,82,114,24,61,62,84,85,26,94,88,89,27,90,52,115,116,28,67,29,31,119],fragment:[30,55,75,17,35,86,106,74,72,119],safe:[42,116,21,86,88,27,51,115,85],printccoperand:54,scene:17,"break":[24,66,27,62
,75,111,21,86,70,96,64,3,80,58,29,72],bang:30,astread:22,selti:72,lifelong:39,stdarg:72,changelog:26,"__cxa_rethrow":111,sequentialtyp:17,monolith:[27,87],"0x000003cd":106,const_op_iter:17,network:86,fuzzinglibc:26,visiticmpinst:85,misoptim:3,addxri:76,lib64:[24,11,62],llvm_enable_eh:62,forth:80,image_file_relocs_strip:112,multilin:[1,30,119],"_ty":66,srcmakefil:67,registeralias:22,ms_abi_tripl:10,barrier:88,multilib:9,lltok:66,nth:70,fixm:[24,54],shadowstackgclow:75,debuglev:21,mvt:[86,54],lock:[78,72,17,51,88],angl:[94,70],zerodirect:54,regress:[24,70,33,85,35,1,89,96,37,27,67,5,52],gcregistri:75,subtl:[40,105,56,26,49,12,13,14,19],boiler:21,render:[72,15,86,17,2],refin:[86,17,42],subreg:54,i48:72,setcondcodeact:54,llvm_build_32_bit:62,"0x00000000016677e0":101,ispredic:6,libllvmir:17,image_file_bytes_reversed_hi:112,isalpha:[41,43,56,45,47,2,49,50],baseclasslistn:30,john:[27,70],"40th":[45,18],headerdata:106,getdatasect:75,inexact:72,tee:85,registerpasspars:78,gcmetadataprinterreg
istri:75,happili:50,analyzebranch:54,hashdata:106,llvm_build_root:62,llvmgcc:67,target:[62,115,25,57,89,88,80],provid:[62,25,42,86,88,89,3,115],cppflag:[67,52],minut:24,uint64_t:[34,94,17,60,58],hassse2:119,hassse3:119,emitfunctionstub:54,contenti:70,frontend:[68,93,46,88,111],n1737:70,manner:[68,24,54,105,111,17,26,86,88,89,27,74,72],strength:[21,86,72,51,88],recreat:[24,94,72],is_nul:93,laden:[40,12],latter:[54,74,86,88,56,34,72,19,17],image_rel_amd64_secrel:23,"0x400528":81,"__attribute__":11,llvm_doxygen_qhp_namespac:62,smul_lohi:86,initializemoduleandpassmanag:[47,2,49,50],attrdump:22,bruce:17,cumodul:8,llvm_definit:62,lexic:[70,74,86,106,72,100],keystrok:70,retcc_sparc32:54,passthru:72,inc32r:76,valuerequir:21,instritinclass:6,bracket:[70,76,94,106,27,111,28,72],argmemonli:[72,51],notion:[70,104,86,106,49,50,78,27,13,14,72],bpf_jeq:86,confront:[51,105],md_prof:3,opposit:[67,61,99,94],overload:[66,104,54,8,17,2,78,74,67,15,72],buildbot:1,identifi:[86,62,99,85,21,1,57,70,115,111
,5],involv:[32,94,74,96,70,71,4,72,66,41,42,56,47,49,51,14,16,17,19,54,105,75,60,86,88,67],op2:72,the_funct:[13,14,15,16,20],"41m":21,wzr:72,sroa:[11,61,51],baseopcod:[71,54],latenc:[82,86,72],callbackvh:17,govern:72,instlisttyp:17,predecessor:[32,86,72,51,60],showdebug:101,likewis:[24,72],"0cleanup":111,llvm_include_tool:62,subtarget:[86,72,118],didescriptor:106,numregionarrai:68,lit_arg:10,fomit:86,isosdarwin:41,emb:[72,40,12,115],cleanli:[78,70,27,72,96],st_uid:99,cudevicegetcount:8,strncmp:26,commandlin:1,memorywithorigin:62,chapuni:39,dw_ate_float:[41,72],eatomtypedieoffset:106,awar:[24,70,105,42,21,86,88,27,5],sphinxquickstarttempl:[109,89],unordered_set:17,awai:[32,70,104,75,5,45,106,60,78,92,72,17,18],getiniti:17,accord:[75,104,54,33,17,21,94,96,43,90,115,74,72,60],unsett:78,preprocessor:[68,40,62,54,21,100,50,97,12,13,67,17],isjumptableindex:54,memorybuff:70,image_file_machine_armnt:112,cov:69,ill:99,xmm0:[10,90,5,6,119],xmm1:[6,119],calltmp:[41,43,47,2,49,50,13,14,15,16,20
],ilp:0,themself:27,com:[24,70,84,53,26,107,27,17],ctxt:94,con:[30,80],testcleanup:72,widen:[86,0],solari:24,resultti:72,exeext:[10,67],getbasicblocklist:[47,41,17,2,49],permut:72,prologu:[75,115],wider:[66,88,105],add_instruction_combin:[13,14,15,16],goodby:109,speak:[14,15,2,49,74],degener:[32,16,47],"__builtin_expect":3,uint16:[93,90],debug_info:106,subscrib:[27,84],mallocbench:35,compatible_class:86,machineblockfrequencyinfo:60,hoist:[32,17,88,90,42],unclutt:4,dwoid:72,binaryoper:[70,17],inhibit:72,ident:[32,70,34,72,99,42,5,47,49,50,10,13,14,15,16,17,18,19,20,75,76,106,57,80,86],aix:[86,108],gnu:[78,24,70,62,99,54,111,26,86,36,89,10,65,79,117,67,114,72,31,119],mitig:75,zlib:[24,62],cxx_statu:70,aim:[68,70,116,85,11,27,80,4,72],scalarrepl:88,pairwis:42,publicli:[17,106],aid:[75,72],vagu:27,keytyp:106,opt:[116,70,85,69,42],xstep:[15,2],printabl:[72,99,54],conv:100,theexecutionengin:[41,47],harddriv:36,extractloop:32,shadowstackgc:75,uint32x2_t:80,cond:[41,54,100,47,2,49,14,15,16,
72,60],succee:50,dw_tag_label:106,dumper:113,old_val:[14,15,16],descent:[56,45,2,15,18,19],incorrectli:[43,45,20],perform:[66,77,62,99,25,42,111,21,1,79,88,89,11,27,80,70,86,85],descend:[111,72],doxgyen:62,addintervalsforspil:86,fragil:[26,5],code_own:[27,84],evil:[17,6,80],hand:[32,94,33,34,70,4,6,104,43,56,45,2,50,12,13,15,17,18,19,20,54,105,75,22,58,86,88],fuse:[32,72,82],use_llvm_scalar_opt:[13,14,15,16],disassembleremitt:22,operandv:[41,47,2],kept:[78,27,70,61,42],undesir:72,scenario:[10,85,100,17,88],incorpor:[86,17,104],thu:[32,86,34,70,72,68,41,42,43,56,100,47,2,49,50,10,51,74,13,14,15,16,17,19,20,75,21,106,78,60,84,85,63,27,115,111,67],hypothet:[74,34,86,78,111,17],whizbang:70,get_reginfo_target_desc:22,contact:[78,117,31,27],thi:[70,95,1,97,3,38,5,68,7,98,99,42,116,46,101,11,108,85,103,55,21,77,66,57,79,23,80,81,82,59,114,60,62,110,25,111,86,88,89,113,27,115,118],gettok:[41,43,56,45,47,2,49,50],clenumvaln:21,value_load:72,destsharedlib:67,basetyp:72,mandelbrot:[15,45,2,18]
,stack_loc:86,ifdef:[68,4,21,12,40],sparctargetasminfo:54,getkei:17,opencl:[31,8],spread:32,board:[27,9,36],parse_primari:[13,14,15,16,19,20],relwithdebinfo:[24,62],mayb:[40,22,12,26,66],stringwithspecialstr:106,fusion:72,fsin:[79,54],mip:[86,88,89],ppc32:86,bpf:[24,26,86],sectnam:21,parsetypetyp:66,bucket_count:106,bpl:6,image_file_machine_ebc:112,openfil:70,prefixdata:115,negat:[15,86,72,2,115],percentag:38,cfrac:35,bork:[21,119],flatten:[86,72,0],rl247416:26,rl247417:26,rl247414:26,pos2:21,pos1:21,getmodulematchqu:54,colloqui:72,fpic:62,loadregfromaddr:54,mandleconverg:[15,2],dopartialredundancyelimin:21,peek:[13,14,15,16,19,20],plu:[115,54,75,72,49,27,56,80,111,14,17,19],aggress:[93,24,61,42,75,86,11,70,72],memdep:42,someclass:30,pose:[75,61],confer:[75,86],"1cleanup":111,fastmath:8,repositori:[24,100,84,39,111,26,63,9,106,89,10,27],post:[76,27,72,86,82],obj:[103,33,74,35,75,37,79,111,81,72],literatur:86,image_scn_align_4byt:112,gc_transition_end:74,canonic:[86,5],s64:8,deltalin
estart:68,nctaid:8,sames:72,curiou:34,xyz:[71,82,79],"float":[86,79,60,115],profession:27,bound:75,emitinstruct:[86,54],opportun:[32,54,0,50,51,13,72],accordingli:[71,72,17,75,111],wai:[68,93,70,115,99,42,75,116,21,86,88,85,27,51,113,111,81,101,5,100],copycost:54,callexprast:[41,43,56,47,2,49,50],n2764:70,lowest:[68,41,43,56,47,2,49,50,70,80,88,13,14,15,16,72,19,20],asmwriternum:118,raw_ostream:86,end_amd_kernel_code_t:25,maxim:[82,26,18,115,45],placement:[67,51],"true":[32,94,34,70,36,3,71,72,6,41,86,8,104,116,9,49,10,13,14,15,16,17,20,54,105,75,76,21,106,78,81,82,24,42,88,65,30],reset:[111,26,115,119],absent:17,optimizationbit:21,legalizeop:66,attornei:27,anew:106,absenc:[86,85],llvm_gc_root_chain:75,emit:[115,25,85,86,88,69,79,80,82,5],hotter:60,alongsid:115,wcover:70,thunderbird:27,noinlin:[101,72,115,58],xxxjitinfo:54,postscript:32,valuelist:30,function_entry_count:3,encrypt:27,refactor:[16,47,61],instr0:34,instr1:34,instr2:34,entrypoint:72,test:[57,85,89,25,42],shrink:[31,86],
realiti:96,xxxtargetasminfo:54,fpreg:54,sync_command:26,"2acr96qjuqsym":27,sanitizercoverag:26,debugflag:[21,17],clang_cl:10,pathnam:[24,103,89],set_value_nam:[13,14,15,16,20],libgcc1:9,concept:[86,70,115,80],mayload:6,consum:[55,17,21,105,36,37,111,38,29,72,26],dw_tag_inlined_subroutin:106,supplement:108,subcompon:27,value_typ:94,middl:70,zone:72,graph:[24,61,62,85,86,111,118,72,60],certainli:[75,32,40,12,51],jvm:[40,12],"0x200":106,dootherth:70,munger_struct:105,fom:32,brows:[43,62,84,20],seemingli:54,dw_apple_property_readonli:106,avx1:10,avx2:10,administr:117,aad8i8:86,gui:[37,70,62],libthread_db:101,adc64ri8:6,gut:67,sparcinstrformat:54,usescustominsert:6,upper:[70,54,17,116,67,72],isvolatil:72,brave:[56,19],version:[62,25,42,86,89,115],bpf_jgt:86,preservemost:72,cost:[86,70],build_fmul:20,bpf_jge:86,cov_flag:26,after_bb:[14,15,16],gr16:86,appear:[68,32,46,99,54,42,72,21,1,106,100,85,88,70,74,105,30,26,17],scaffold:[56,19],"23421e":72,constantarrai:17,uniform:[70,17],isoptim:[7
2,106],va_list:72,image_sym_class_funct:112,burn:36,defici:75,faultingpcoffset:93,gener:[115,25,42,57,88,3,80],inputcont:94,satisfi:[93,42,47,88,96,27,4,16],pcre_fuzz:26,roots_end:75,precursor:27,plotter:[15,2],helper_cuda:11,mach_universal_binari:81,behav:[93,70,42,111,31,63,88,97,72],myvar:105,triag:86,baselin:[86,96],regardless:[32,7,70,62,110,75,95,77,47,106,64,37,98,16,72],extra:[70,62,111,21,3,51,115],stingi:17,stksizerecord:90,marker:[86,21,1,70],llvm_on_xyz:4,regex:[97,21,5,35],prove:[32,42,34,35,48,51,72],nothrow:88,naddit:21,subvers:[27,89],live:[62,89,80,42],tape:24,lgtm:[61,84],tlsv1_method:26,"0xl00000000000000004000900000000000":72,cxxabi:24,finit:[86,22,72],viewcfg:[17,49],geordi:39,shouldexpandatomiccmpxchginir:88,iffals:72,logarithm:115,graphic:[15,12,2,40],at_nam:106,canconstantfoldcallto:66,prepar:[72,111,9,105],focu:[86,92,109,0],cat:[24,75,21,10,81,26],ctfe:31,can:[70,95,1,5,97,3,38,44,68,66,99,42,116,46,101,11,85,103,55,21,77,107,79,23,80,81,82,114,60,62,25,111
,86,88,89,113,27,115,118],debug_symbol:[64,67],boilerpl:[13,75,21,22,104],heart:[74,67,55],underestim:72,basemulticlasslist:30,chip:[54,8,31,86,9,36,10,79,82],spu:54,abort:[70,72,26,86,111,85,119],spl:6,occur:[32,86,74,1,70,3,38,4,72,7,98,99,5,100,10,95,17,52,103,105,75,56,77,78,79,61,110,111,63,27,90,19,115,116,67,118,30],multipl:[32,70,34,97,72,73,7,99,42,5,48,51,68,104,105,76,21,117,114,23,81,60,24,26,86,88,89,27,115,28],image_sym_class_regist:112,ge_missing_sigjmp_buf:70,regioninfo:32,"0x80":[106,99],x86instrss:54,product:[75,72,31,86,2,96,78,27,56,34,67,15,30,60,19],multiplicand:72,southern:[108,25],uint:79,drastic:4,lto_codegen_compil:92,breakag:27,voidtyp:17,newlin:[70,99,1,2,115,15,5],copyphysreg:54,getcalledfunct:17,explicit:[93,70,34,72,40,41,8,100,47,2,49,12,74,13,14,15,16,17,104,105,75,21,78,23,24,61,25,31,86,88,113,27,28],is_base_of:104,objectimag:73,somewhat:[39,70,42,17,35,100,2,88,27,56,74,15,72,19],ghc:[86,72],thread_loc:[74,86,72],approx:8,arch_nam:81,approv:[27,96
],graphviz:[32,17],brain:70,svnrevert:24,cold:[72,51,60],still:[68,86,111,21,1,70,97,27,80,85,100],ieee:[79,72,51,99],dynam:[85,115],mypass:[78,17],conjunct:[62,55,33,72,67,4,5,119],precondit:70,yaml:76,window:[21,86,62,70],addreg:86,curli:[10,72,70,17,119],val_success:72,llvm_doxygen_qhelpgenerator_path:62,has_asmprint:28,non:[93,70,95,1,97,38,5,68,7,98,99,42,116,46,51,85,103,55,21,77,66,79,82,62,25,110,111,86,88,89,27,115,118],evok:72,recal:[43,34,94,49,50,13,20],halv:66,half:[97,86,70,115],recap:80,superset:[72,99],nop:[72,23,90,74],discuss:[68,24,70,104,54,39,17,21,106,78,37,27,90,56,74,84,72,6,19],mybranch:24,organ:[111,70],drop:[31,27,72,70,84],reg1024:86,reg1025:86,reg1026:86,reg1027:86,image_scn_align_1024byt:112,dw_tag_vari:106,domain:[40,54,75,86,12,102,72,6],replac:[97,24,61,62,99,8,75,34,21,86,88,65,27,92,51,58,111,114,72],arg2:[45,72,18],condmovfp:119,degen:72,backport:9,reallyhidden:21,year:[70,6],operand:[66,70,25,105,111,86,3,115,38,5],rl4:8,happen:[86,70,27,5,88],rl
6:8,rl1:8,rl3:8,rl2:8,shown:[35,1,97,37,72,6,68,104,8,2,15,17,54,76,21,106,80,59,26,94,113,90,109],accomplish:[24,104,32,75,45,89,27,17,18],"_e32":25,oldval:[47,41,72,2,49],rational:[86,27],ldrr:54,release_34:24,fiddl:[17,109,9],release_31:24,release_30:24,release_33:24,release_32:24,argu:70,argv:[68,8,21,106,101,11,82,85],ldrd:88,mandelconverg:[15,2],argc:[68,8,21,106,101,11,72],card:[74,36],care:[24,40,70,54,42,5,35,86,47,88,96,78,119,12,72,4,29,16,17,6,100],xor16rr:86,couldn:[34,42],adc32rr:6,enginebuild:73,unwis:[72,99],cudamemcpydevicetohost:11,adc32ri:6,blind:86,subrang:72,yourself:[24,66,62,17,27,72,119],stringref:[21,70],size:[32,86,34,70,38,44,68,66,99,8,116,51,85,105,75,21,57,114,23,80,61,25,26,42,88,72,64,115,92],yypvr:109,silent:[27,72,119,42],caught:[111,70,72],yin:94,himitsu:24,checker:[22,105,63],cumul:86,friend:100,editor:[24,27,70,109,67],nummeta:75,ariti:75,especi:[24,27,54,32,72,21,100,70,36,106,88,3,51,113,34,4,61,17,31,52],dw_tag_interface_typ:106,apple_nam:106,
cpu0:53,cpu1:94,llvmtop:78,mostli:[32,40,41,54,24,34,21,86,88,49,61,12,14],quad:[74,72,54],than:[70,97,38,68,66,99,42,100,11,51,85,75,21,79,80,60,62,111,86,88,113,27,115],png:62,"0x432ff973cafa8000":72,d02:57,xcore:[86,89],spisd:54,postfix:70,copy_u:31,browser:[39,84],anywher:[109,111,5,47,10,92,51,34,67,56,16,72,6,19],getint32ti:70,cc_sparc32:54,stash:104,bitcast:[105,75,111,42,57,80,5],engin:[24,103,61,100,105],fldcw:86,mccodeemitt:[86,22],begin:[86,34,96,37,70,4,72,73,41,99,42,104,46,47,49,51,13,14,15,16,17,19,20,54,75,21,106,24,61,25,111,94,89,27,90,115,30],importantli:[14,27,70,49,42],numrecord:90,toplevel:[13,14,15,16,19,20],"39dfd58417ef642307d90306e1c7e50aaec5a35c":26,getpointers:75,renam:[24,70,33,17,47,106,67,16,72],"_p1":106,"_p3":106,steadi:93,callinst:17,llvm_libdir_suffix:62,femul:72,add_reassoci:[13,14,15,16],image_file_bytes_reversed_lo:112,fifth:[72,54,8],onli:[93,86,34,1,70,36,96,97,37,3,38,71,72,68,66,99,8,5,46,9,48,51,85,100,105,104,55,75,76,21,77,57,107,79,23,80
,81,82,59,114,24,61,62,25,111,26,42,88,27,115,28,67,118,92],ratio:60,image_rel_i386_dir32nb:23,expr_prec:[13,14,15,16,19,20],llvm_enable_abi_breaking_check:17,endloop:[41,16,47,2,49],overwritten:[90,86,72,111],llvminitializesparctargetinfo:54,cannot:[32,70,0,97,4,5,73,40,42,43,72,48,12,17,54,105,75,21,111,78,114,23,80,62,85,31,86,88,113,27,116],truli:17,mrm6r:54,inttoptr:51,operandlist:119,seldom:34,intermitt:24,bio_new:26,object_addr:75,gettypenam:17,rrinst:119,"0x0000000000d953b3":101,dllvm_include_exampl:24,hierarchi:[24,66,1,89],istreambuf_iter:8,"0x48c978":26,foo_test:10,concern:[105,75,17,27,28,72],"1svn":96,dityp:41,mrminitreg:54,printinstruct:[22,54],regcomp:26,between:[68,66,86,115,42,75,111,21,46,79,88,113,27,80,70,5,100],"import":[32,63,34,1,36,96,37,70,71,72,42,46,11,51,85,75,21,80,24,62,26,86,88,113,27,115],modulelevelpass:78,paramet:[86,62,105,75,111,21,1,70,3,115,58],constantpoolsect:54,clang_cpp:10,blame:84,"__text":86,intregssubclass:54,dw_tag_subrange_typ:106,perta
in:[67,27,106,111],inputfilenam:21,nearbi:[93,34],inconsist:[70,106,105],qualtyp:70,image_sym_type_struct:112,gr32:[86,6,119],my86flag:94,hvx:31,mutate_depth:26,damag:31,caret:97,clarif:[108,27,70],resort:111,rebuild:89,classic:[31,86],valuekind:70,invers:[32,72],fixabl:51,uglifi:[13,50],getentryblock:[47,41,17],derefer:[72,17,106,105],normalformat:21,rubi:75,getjitinfo:[86,54],thischar:[41,43,56,45,47,2,49,50],eip:6,global_context:[13,14,15,16,20],retcc_x86_32_c:54,fastemit:22,fneg:72,initializenativetargetasmpars:[41,47,2,49,50],dw_at_artifici:106,stdout:[24,26,112,37,13,14,15,16,72,19,20],metric:[78,26,60,96],henc:[24,30,21,100,89,92,90,72],worri:[24,41,84,56,21,72,19],bias:31,eras:[41,21,100,47,2,49,106,88,67,17],bigblock:82,antisymmetri:34,develop:89,proto:[41,43,56,47,2,49,50,13,14,15,16,19,20],"__nv_powf":8,sizeofimm:54,bpf_lsh:86,cc1:101,epoch:[94,99],cindex:54,externalstorag:21,document:[62,115,42,86,88,89,80,60],finish:[0,33,34,96,101,72,73,41,43,47,2,49,50,13,14,15,16,85,
19,20,78,62,84,111,86,109],futhermor:74,closest:[41,72],someon:[40,70,75,86,66,27,12,51,109],removebranch:54,freeli:[27,88],tradition:[86,42],pervas:[17,104],whose:[68,30,70,54,42,114,17,86,47,2,106,27,85,115,56,15,16,72,19,119],createstor:[41,47],destreg:86,bodi:[70,111,5,21,85,27,115,34,72,26,76],ccc:[72,9,115],r_mips_hi16:31,noaa:32,tpoff:74,touch:[32,70,17,106,78,72],tool_verbos:[67,89],speed:[24,70,21,47,10,11,27,16,26],create_modul:[13,14,15,16,20],death:26,struct:[86,115],bb0_29:8,bb0_28:8,getx86regnum:54,bb0_26:8,desktop:64,identif:[72,9,30,24],gettoknam:41,treatment:[75,54],versa:88,real:[24,70,54,8,5,21,42,45,2,106,26,72,15,17,6],imul16rmi8:86,frown:27,"0x82638293":106,read:[93,70,95,97,38,5,66,98,99,42,46,101,108,85,100,21,77,7,79,80,81,82,59,86,88,89,113,27,115,118],cayman:108,amd:25,regfre:26,googletest:1,bangoper:30,funcresolv:17,benefit:[32,70,42,75,26,105,106,50,51,17,52],lex_numb:[13,14,15,16,18,19,20],output:[70,62,42,116,86,5,89,85,60],downward:72,strcmp:26,debug_
pubtyp:106,matur:[75,21,51],initid:115,cmake_install_prefix:[24,37,9,62],viral:27,libstdc:[24,70,9],debug_with_typ:17,extralib:67,blockidx:8,lto_codegen_set_debug_model:92,v2i32:72,n64:31,tdm:117,tok_binari:[41,47,2],sixth:54,objectbufferstream:73,asan:26,flagprototyp:41,"throw":86,dw_tag_subprogram:106,src:[103,54,33,35,86,72,52],sra:[30,119],central:[4,106,111],greatli:[74,51,106],underwai:31,image_sym_class_sect:112,srl:[30,119],numbit:17,chop:106,degre:[117,88,51,0],intens:[17,51,0],dw_tag_subroutine_typ:[72,106],sixkind:72,backup:65,processor:[24,62,54,0,75,108,21,86,106,89,22,31,80,82,67,72,6],valuecol:71,bodylist:30,op3val:54,llibnam:21,localaddress:72,xxxbegin:17,outloop:[41,16,47,2,49],yout:94,your:[85,88,89,42],parsebinoprh:[41,43,56,47,2,49,50],verifyfunct:[41,43,47,2,49,50],loc:[74,41,106,54,91],log:[27,1,85,42],area:[70,75,111,86,27,80,100],aren:[24,40,86,105,32,75,72,42,70,49,50,37,27,12,76,13,17],haskel:[17,40,12,72],start:[115,85,89,25,42],low:[86,115],lot:[32,86,35,
36,70,72,6,40,41,104,43,56,45,100,47,2,50,12,13,15,16,17,18,19,20,54,105,75,76,21,66,106,78,58,24,85,31,94,64,27,67],colder:[31,60],submiss:27,satur:[15,2],addresssanit:[26,72],"default":[62,25,42,86,89,3,115],tok_def:[41,43,56,45,47,2,49,50],start_bb:[14,15,16],bucket:[17,106],v31:72,v32:8,loadabl:75,scanner:[45,18],decreas:82,opnam:54,producess:89,value_1:28,prepend:[72,17,106,97],valid:[32,34,96,5,73,8,72,100,17,103,105,21,57,79,82,60,24,62,25,111,26,86,27],release_19:24,release_18:24,release_17:24,release_16:24,you:[32,63,33,34,1,36,69,96,97,37,70,5,68,66,99,8,116,100,9,101,11,51,95,86,17,52,104,105,75,76,21,77,106,72,58,81,82,24,62,84,25,85,31,42,88,89,64,65,27,115,117,67,26],release_14:24,release_13:24,release_12:24,release_11:24,poor:[14,70,49],polar:94,lowerbound:72,registri:75,base_offset:74,bpf_st:86,multidimension:72,binfmt:24,pool:[54,86,78,90,115,38],namedvalu:[41,43,47,2,49,50],bulk:[47,16,17,86],adc64mr:6,value_n:28,skeleton:24,osx:99,messi:86,ssl3_read_byt:26,month:[
39,96],correl:[75,72],"__cxa_end_catch":111,getglob:54,pandaboard:36,paramidx:115,getnullvalu:[47,41,17,2,49],"_ri":119,cpufrequtil:36,sparcinstrinfo:54,articl:[32,24,34,47,49,14,16],sdisel:61,gcfunctionmetadata:[75,90],phielimin:86,"_rr":119,datalayout:[57,115],verb:[67,70],mechan:[86,57,115],veri:[32,86,0,34,35,36,96,70,72,6,100,39,40,42,43,5,45,46,47,2,49,50,10,12,51,102,13,14,15,16,17,18,19,20,104,105,75,56,21,106,78,22,24,85,26,94,88,27,115,111,29,119],passmanagerbas:54,targetregisterdesc:[86,54],methodbodi:54,eatomtypetag:106,emul:[66,70,17,31,86,51,82,72],cosin:[72,54],customari:[21,27,72],dimens:72,unnorm:72,fixedt:106,preserveal:72,casual:[67,27],kistanova:117,dofin:54,nand:72,fpformat:[6,119],isobjcclass:106,llvmlibspath:67,fp128:[34,72,115],"0x00000100":106,signextimm:86,modular:[28,78,77,70,42],trunk:[24,39,26,86,37,106,10,11,27,96,35],mclabel:86,strong:[5,100,88,27,51,34,72],modifi:[70,62,42,86,88,85],divisor:[11,72],ahead:[24,70,111,31,63,78,37,27,56,45],dform_1:86,t1_
lib:26,amount:[32,63,74,70,72,6,66,45,100,50,34,13,85,18,75,21,77,78,79,82,17,86,87,22,90,111,67],sphinx_warnings_as_error:62,initializealiasanalysi:42,put:[93,32,86,34,96,70,101,72,68,40,41,42,5,45,47,49,50,10,12,14,16,17,18,75,21,106,78,84,85,94,88,111,109],famili:[40,25,72,106,12,74,17],sequencetrait:94,dangl:[14,17],"0x710":81,is64bitmod:54,isimmedi:54,zorg:117,massag:70,formul:4,bash:[4,109],libxml2:[26,9],taken:[32,33,34,3,4,72,6,40,99,42,12,51,74,17,54,76,21,57,111,26,86,67],distfil:67,zork:119,vec:[72,17],build_arch:[67,52],apfloat:[24,41,43,47,2,49,50,20],valuetyp:[66,86,6,54],axpi:11,regoffset:29,oblivi:80,targetcallingconv:54,"0b000111":54,x00:112,x86instrmmx:54,device_i:11,histori:[24,27,84],ninf:72,"0x40054d":81,device_x:11,reindent:70,templat:[70,104,42,21,89,97],vectortyp:17,unreli:[26,42],parsabl:[74,113],phrase:70,anoth:[32,86,34,36,97,37,70,71,72,68,66,99,8,5,100,9,48,75,21,77,23,80,24,61,111,26,42,88,27,115,28,67,92],llvm_enable_rtti:62,snippet:[75,27,17],reject:[
21,5],rude:111,personlist:94,secondlastopc:54,unlink:[24,17],retcc_x86common:54,"0x00003500":106,stabil:[31,27],lifetim:[75,86,51],machinepassregistri:78,help:[70,95,1,69,97,38,5,7,98,42,116,85,103,55,77,79,80,82,59,62,110,88,113,114,91,118],mbbi:86,soon:[33,56,49,78,27,14,92,19],mrmdestreg:[6,54],held:[27,72,84,80],ffi:[100,62],foo4:[65,92],foo1:[65,92],foo2:[65,92],foo3:[65,92],dfpreg:54,complex:[75,66,86,70,96],eatomtypecuoffset:106,tok_els:[41,47,2,49],perserv:72,mergebb:[41,47,2,49],systemz:[86,89],finer:42,cee:17,dexonsmith:106,sentenc:70,wideaddr:72,ystep:[15,2],ninja:[24,26,62,9,36],gmon:67,libllvm:[64,24,31,62],stopper:33,addenda:108,x0c:112,iff:72,scalarevolut:[105,42],fulli:[86,60,115],unknownvalu:72,heavi:[67,17,74],succ_iter:17,llvm_build_tool:62,beyond:[109,105,17,86,51,111,29,118,72,6],todo:[32,66,33,86,9,106,78,22,102],ific:21,isunaryop:[41,47,2],ppcinstrinfo:66,safeti:[93,31,72,51],publish:[33,70,17],debuglevel:21,astnod:22,regexec:26,unreview:27,labf:21,ast:[45,22,
61],errorp:[41,43,56,47,2,49,50],dw_tag_volatile_typ:[72,106],mystruct:105,pub:106,mips64:[31,89],reason:[70,34,4,72,66,41,42,43,56,45,9,49,50,10,51,47,13,14,16,17,18,19,20,104,105,75,21,106,78,22,24,62,74,111,26,86,87,88,27,28,109,119],base:[62,25,42,89,3,115,85],configmaxtest:17,ask:[66,27,89,42],asi:54,intermodular:[39,92],wglobal:70,asm:115,basi:[45,74,17,21,2,75,38,15,72,18],r_mips_pchi16:31,launch:[11,8],warpsiz:8,undergo:[32,72],assign:[3,61,105,8,34,21,86,70,88,113,27,115,111,71,72,60,100],myawesomeproject:72,obviou:[32,40,27,42,34,106,86,85,2,50,22,12,70,80,88,13,90,15,72,100,56],ultrasparc3:54,islazi:54,isregist:86,placehold:111,uninterest:[45,18],implementor:[13,14,6,49,50],miss:[47,25,0,72,31,9,2,85,65,70,51,56,15,16,17,35,19],st6:6,st4:6,st5:6,nodetail:38,st7:6,st0:[6,54,119],st1:[86,80,6,54],st2:6,st3:6,scheme:[70,54,75,17,58,47,38,16,72],schema:[94,1,112,106,55],adher:[4,27,17,6,102],xxxgencodeemitt:54,getter:[72,22,17,106],bidirect:17,newabbrevlen:115,adc32ri8:6,grep
:[24,62,21,86,36,10,5,35],stl:[24,70,32,26,94,17,100],stm:72,do_something_with_t:93,rootmetadata:75,store:[62,115,25,42,88,80,60],str:[68,41,8,43,17,26,94,47,2,49,50,112,80,56,72],consumpt:[78,26,86],aliaseeti:72,toward:[72,27,17,60,39],grei:33,randomli:44,gofmt:70,llvmaddmoduleprovid:31,"null":[93,70,42,111,79,51,82],dllvm_target_arch:9,attrimpl:22,imagin:34,mips32:31,unintend:32,bz2:24,lib:[103,62,25,86,89,69,38],lic:32,ourfunctionpass:17,lit:[62,69],unintent:27,useless:[40,106,49,12,80,14],numfunct:[93,90],mixtur:119,c_ctor_bas:5,maco:[24,100,17],alpha:[72,54],filenameindex0:68,isbarri:[6,119],hipe:[86,72],clear:[70,74,48,72,41,43,56,47,2,49,50,13,14,15,16,17,19,20,105,75,77,27,28,67],implicitdef:86,clean:[24,86,116,63,89,96,111,92,100],latest:[33,24,31,5],v4f64:72,test1:[10,74,109],unsimm:86,v16:8,v15:72,instrins:72,i32imm:[54,119],"3x4":72,get_instrinfo_named_op:54,test5:5,ptrval:72,coerc:34,delin:1,pretti:[32,34,35,4,43,56,45,47,2,49,50,13,14,15,16,18,19,20,105,78,58,81,26,29,
109,30,119],setnam:[41,43,47,2,49,50,17],less:[32,70,33,34,1,36,48,97,72,6,68,40,41,99,42,43,56,45,100,47,2,49,50,10,12,51,13,14,15,16,17,18,19,20,75,21,106,80,24,31,86,27,115,109],lastopc:54,createfsub:[41,43,47,2,49,50],suspect:77,darwin:[93,41,86,10,90,81,67,72],ymm:72,defaultdest:72,dinod:41,prolang:35,parenexpr:[41,43,56,47,2,49,50,13,14,15,16,19,20],has_asmpars:28,nativ:88,same_cont:23,"133700e":[43,20],setdata:70,rejit:13,llvmlibdir:67,image_scn_lnk_oth:112,dw_macinfo_start_fil:72,kawahito:86,userspac:111,"__llvm_profile_name_bar":68,ctaid:8,seventeen:76,compute_pgm_rsrc1_sgpr:25,xword:54,close:[24,70,105,55,86,61,72],"0x0b17c0de":115,whatsoev:72,deriv:[70,99,25,86,57,27],libcmt:37,particip:[84,17,10,27,67,72],parse_unari:[15,16],pifft:35,won:[70,105,42,33,86,9,106,27,58,67,72],isprefix:21,cst_code_integ:115,emitint32:75,oversimplifi:17,fpform:6,numer:[37,72,6,41,43,56,45,47,2,49,50,51,102,13,14,15,16,17,18,19,20,54,76,21,114,31,30],isol:[70,86,85,60],lowercas:[13,54,50],nume
l:72,distinguish:[68,40,75,17,12,80,74,4,72],both:[70,1,97,5,68,99,42,100,11,51,85,105,75,21,107,62,111,86,88,89,113,27,115],clang_attr_identifier_arg_list:22,delimit:[24,25,30,111,29,72],fancyaa:78,lako:70,sty:6,getnumvirtreg:86,protector:[72,106],lexidentifi:66,block_par:[14,15,16],"__objc":72,jeff:4,byval:[86,72,115],header:[115,62,88,89],instrsch:17,"100mb":67,linux:[70,86,62],test_corpu:26,forgiv:34,llvm_enable_thread:62,stamp:99,territori:24,empti:[70,34,1,72,41,43,56,49,10,74,14,17,19,20,54,75,76,21,106,81,62,111,26,94,27,67,30,119],destructor:[70,17,100,78,111,72],newcom:[16,47,6,102],sslverifi:24,newinst:17,as_float:[13,14,15,16],box:[86,106,84],lattner:[40,12],imag:[73,86,2,114,23,15,72],ada:111,imac:0,coordin:[75,74,94],modrefv:119,imap:24,look:[68,66,86,62,25,42,111,21,1,70,88,89,101,27,115,81,5],flat_store_dword:25,ramif:105,"while":[93,32,70,34,1,71,5,42,72,48,101,85,105,21,77,24,61,84,111,26,86,64,27,115,67,92],smart:[70,72],loos:[67,6],loop:[88,42],pack:[33,86,43,51,
115,72,20],malloc:[75,17,40,12,78],pragmat:31,readi:[34,96,73,41,43,56,45,47,2,49,50,13,14,15,16,18,19,20,21,106,78,31,65,27],readm:[10,24,27,109],"__gcmap_":75,thesparctarget:54,hideaki:86,"0x00001203":106,quadrat:[86,79,17],dependfil:67,fedora:24,grant:[34,27],tokinteg:30,belong:[72,21,111,17,34],llvm_site_config:[10,37],indvar:72,octal:[21,99,119],curloc:41,conflict:[24,119,72,86,10,27,56,13,14,15,16,17,6,20],"0b10":119,goodwil:27,ccif:54,optim:42,image_sym_class_type_definit:112,temporari:[32,61,94,17,35,1,10,70,67,86,72,100],"3gb":37,vreg:86,numarg:[41,90],"0x16677e0":101,older:[24,54,75,31,36,27,51,67,29,21],mctargetstream:86,cmake_toolchain_fil:24,pointtoconstantmemori:42,reclaim:[61,72],use_:17,positionaleatsarg:21,weakest:[86,88],predetermin:42,safestack:72,cout:[11,94,70,100,8],isunord:88,accumulateconstantoffset:34,afre:48,dw_ate_unsigned_char:72,undeclar:[43,72,20],password:[117,27],dictionary_fil:26,recurs:[32,74,1,72,40,43,56,45,47,2,49,12,14,15,16,17,18,19,20,75,22,67
],shortcut:[45,18,19],supersparc:54,"__apple_objc":106,unknownptr:72,subsequ:[73,32,105,54,0,43,111,21,86,106,50,90,29,72,119],gnueabihf:9,dw_macinfo_undef:72,arm_aapcscc:115,mcsectionelf:86,xterm:70,game:27,optimizationlist:21,characterist:[66,54,17,86,112,72],isproto:115,outright:105,success:[94,70,72,41,43,56,47,2,49,50,13,14,15,16,19,20,54,55,78,24,111,63,27],signal:[93,111,21,88,101,10,72,26],resolv:[73,86,43,72,1,49,50,78,27,92,67,13,14,17,6,20],"______________________________________":17,popular:[24,86,36,42],bpf_alu:86,regionsforfile1:68,regionsforfile0:68,ptroff:86,some:[0,1,2,3,4,5,6,9,10,11,12,13,14,15,16,17,18,19,20,21,22,24,25,26,27,28,30,31,32,33,34,35,36,37,39,40,41,42,43,56,45,47,48,49,50,51,54,106,58,61,62,94,64,67,63,71,72,74,75,76,78,79,80,85,86,87,88,89,90,92,93,70,96,97,99,100,102,104,105,66,84,111,114,115,109,119],urgent:27,"__llvm_faultmap":93,mnemonicalia:86,shlib:24,mem_address:86,uselistorder_bb:72,addpreserv:42,printinlineasm:54,pathsep:10,n2930:70,slash:[
72,99],castinst:17,bcanalyz:[115,69],cgi:26,run:[70,62,42,116,86,88,5,89,80,85],stem:17,"_ztii":72,movsx64rr8:86,curtok:[41,43,56,47,2,49,50],assignvirt2phi:86,subtract:[68,26,86,72,66],"_ztid":72,faith:111,blocksizei:8,idx:[41,105,43,76,47,2,49,50,70,72],nnnnnn:86,inaccessiblememonli:72,shini:78,blocksizez:8,f31:[72,54],blocksizex:8,block:42,use_llvm:[13,14,15,16,20],gcroot:75,aq2:72,within:[32,94,34,35,1,70,72,41,86,8,5,45,100,47,2,49,50,74,13,14,15,16,17,52,104,105,75,77,106,57,80,24,61,85,42,90,115,111,67,119],loadsdnod:17,proj_install_root:52,ensur:[93,32,86,0,74,96,70,38,72,41,8,5,100,47,2,10,51,16,17,20,103,54,75,21,77,78,23,24,111,42,88,89,27,90,115,67],llvm_package_vers:62,mach:[81,108,72,115],properli:[86,85,88,42],unpoison:72,loopunswith:51,pwd:[24,26,9],bio_s_mem:26,vfprintf:72,newer:[24,37,27,62,101],cmpxchg:88,flagsfeatureb:94,flagsfeaturec:94,flagsfeaturea:94,specialti:17,info:[24,61,62,75,92,1,101,27,115,111,81,86,72,118],fde:[86,61],"0xc3":119,i65:72,abs_fp64:6,simi
lar:[32,86,0,34,36,70,4,72,41,99,8,43,5,45,2,49,50,10,11,13,14,15,17,18,52,20,103,54,105,75,76,21,78,22,23,24,111,26,94,88,27,115,119],createdefaultmypass:78,obviat:52,reflectparam:8,doesn:[68,27,99,42,85,21,1,70,88,3,80,111,86,5],repres:[115,42,57,88,3,80,60],arg_iter:[47,17],incomplet:70,nextvari:[2,49],minsiz:72,titl:[27,84],speccpu2006:35,add32mr:6,nan:[82,79,72,106],setenv:67,"0x00007fff":86,dosometh:70,resign:27,xtemp:88,drag:84,canfoldasload:6,rnnnn:27,svn:[11,27,62,51],typeid:115,infrequ:78,svg:62,addmbb:86,orbit:[15,2],devminor:8,depth:[32,34,21,86,49,65,14,72,6],loadobject:73,unconnect:105,mystringtyp:94,msbuild:[37,62],getkind:[22,104],image_scn_mem_preload:112,compact:[40,41,75,111,86,12,38,90,17],friendli:[39,70,56,27,102,29,19],"__llvm_profile_name_foo":68,breakcriticaledg:78,aris:[72,27,17,105],instr_iter:86,yoyodyn:27,then_bb:[14,15,16],roots_siz:75,runnabl:[24,89],nonatom:106,llvmdisasminstruct:29,weakvh:17,button:84,llvm_enable_doxygen:[24,62],use_llvm_target:[13,1
4,15,16],dw_tag_const_typ:[72,106],dw_tag_structure_typ:[72,106],relink:[103,85],vgpr:72,calleef:[41,43,47,2,49,50],jump:[57,115],imper:[70,75,47,49,14,16],download:[24,62,54,33,31,9,96,10,65,11,117,67,17],click:[37,84],hasoneus:70,poke:115,image_scn_lnk_nreloc_ovfl:112,espresso:35,cell:54,experiment:[66,25],registerschedul:[78,31],ramsei:86,init_v:16,legalizeact:54,becom:[32,70,0,36,72,6,54,56,47,49,10,51,14,16,17,19,104,105,21,78,80,86,90,67],accessor:[78,56,86,106],"_source_dir":62,startexpr:[41,16,47,2,49],convert:[1,95,86,88,89,97,69,80],convers:[93,21,86,70,51],value_kind:72,converg:[15,72,2],solaris2:78,findings_dir:26,chang:[103,46,62,115,42,116,21,1,70,88,55,85,3,89,80,98,86,5],hexagon:[24,86,72,89],epilogu:[75,31,72,54],chanc:[3,73,45,94,18,27,51,72,6],testcase_dir:26,selectinst:70,n3272:70,"0xffff":[90,72],danger:[17,5,72],revok:27,win:[70,17,42],dyn_cast:[70,104],"boolean":[86,70,79,62,115],llvmtyperef:66,basic_block:20,externallyiniti:72,getrawsubclassoptionaldata:34,im
plic:[86,27],recordid:115,fibi:[16,47],remaind:[68,24,66,54,86,10,28,72],llvm_enable_warn:62,"0x00ff0000":86,gc_transition_start:74,numelt:115,benchmark:[24,0,33,31,106,10,11,27,17,35,52],landingpad:111,dcmake_osx_architectur:24,nvptx:89,findlead:17,retriev:[73,99,84,8,74,21,94,78,90,111,17],image_scn_gprel:112,perceiv:[40,12],memory_order_acq_rel:[72,88],linearscan:[78,82,86],meet:[78,24,27,86,34],machine_kind:25,control:[46,62,1,70,89,79,82,86,85],malform:[32,85],sudo:[24,36],typeprint:66,llvm_use_intel_jitev:62,compactli:119,myfooflag:94,sought:72,emitepilogu:54,clang_attr_arg_context_list:22,egrep:24,dw_op_deref:72,addpreemitpass:54,dissolv:67,tag_base_typ:106,templatearglist:30,lto_module_is_object_fil:92,live_s:75,c11:88,eliminatecallframepseudoinstr:54,space:[62,115],aliasanalysiscount:42,"0x3feaed548f090ce":50,filterclass:71,syscal:86,image_scn_lnk_info:112,vsetq_lane_s32:80,subtyp:[111,54],primaryexpr:[56,19],irtest:62,jne:86,onzero:72,newptr2:72,distzip:67,outer:[41,111,94
,47,48,49,78,70,14,16,72],consensu:27,pushfl:86,topdistdir:67,foreach:[70,119],build_alloca:16,exact_artifact_path:26,handl:[62,88,80],auto:86,handi:[43,67,109,17,20],memberlist:54,armgenregisterinfo:22,p15:8,p16:8,p17:8,front:[111,86,70,89],p19:8,modr:86,somewher:[78,104,43,5,35,2,10,111,15,72,20],faultkind:93,slide:17,ourfpm:[41,47],upward:[1,72],unwind:[32,61,54,111,31,86,48,23,51,59,72],globl:[74,23,8],selectiondag:88,grok:[43,100,20],chunk:[32,70,115,86,87,106,80,20],special:[93,24,63,115,105,42,75,111,21,1,9,88,89,101,11,27,80,28,86],image_sym_type_byt:112,"0x00000130":106,influenc:[78,61,72,106,80],discharg:51,suitabl:[73,32,8,75,17,21,86,10,97,11,115,72,68],hardwar:[82,86],statist:[68,42,77,79,38,82],llvmtransformutil:52,spec95:35,lcssa:61,"__cuda_ftz":8,manipul:[24,100,58,86,55],undo:80,typebuild:[66,17],ssl_set_accept_st:26,ecx:[86,23,6,119],image_scn_mem_writ:112,bodyexpr:[41,16,47,2,49],relpo:99,mac:[24,99,101,78,96,17],keep:[86,42],counterpart:72,bpf_and:86,wrote:[66,41
,72,105],dumpmymapdoc:94,svptr:72,linkallcodegencompon:78,qualiti:86,arr:[72,17,105],fmul:86,art:75,find_a:17,rs1:54,rs2:54,scalartrait:94,perfectli:[70,105,5,86,56,72,100,19],mkdir:[24,62,26,89,65,11,67],second_end:72,attach:[24,70,101,84,8,43,106,47,2,49,50,27,16,72],functionpassctor:78,createparametervari:41,"final":[68,24,86,99,75,111,21,1,9,27,115,70,85],prone:[21,86,6,100,36],my_valu:70,rsi:[86,6],methodolog:111,rst:[86,22,109],exactli:[70,62,115,104,42,75,72,21,1,113,23,80,111,28,5],rsp:[74,86,87,6,90],ehashfunctiondjb:106,bloat:70,a_ctor_bas:5,instvisitor:[66,17],openssl_add_all_algorithm:26,dubiou:99,bare:[103,54,17,31,90,72],f16:72,exhibit:[85,88],multhread:17,xor8rr:86,reg2:5,procnoitin:6,reg1:5,goldberg:75,lightli:[33,72],tabl:[115,57,80,42],need:[93,70,97,5,66,99,42,100,101,11,51,85,103,55,75,21,77,57,79,80,82,59,60,62,111,86,88,89,27,115,118],altivec:[31,86,72],ind4:72,createfunctiontyp:41,ind1:72,reloc_pcrel_word:54,"0x04":106,"0x05":90,"0x06":90,"0x07":90,"0x00":[68,
90,99],parse_extern:[13,14,15,16,19,20],"0x02":[68,106],fileit:21,unawar:72,lgkcmt:25,platformstripopt:67,llvmgold:65,detector:34,equal_rang:17,singl:[70,1,97,5,68,66,99,48,85,105,75,21,80,58,24,62,25,110,111,86,88,89,113,27,115],parseidentifierexpr:[41,43,56,47,2,49,50],discop:41,discov:[86,75,26,1,47,106,49,96,14,4,16],rigor:86,x86_ssecal:54,deploi:84,x86_fp80:[34,72,115],sub_8bit:76,url:[27,84,109],hasrex_wprefix:6,"0xe8":119,indx:94,inde:26,llvm_parallel_link_job:62,unoptim:[24,79,89],"0x0d":90,"0x0e":90,constrain:[64,43,111,100,10,119,72,20],disable_assert:[64,67,89,96],"0x0a":[90,99],"0x0b":90,"0x0c":68,ssl_load_error_str:26,cute:[40,12],verbos:[94,99,110,1,89,67],objc:[39,109,106],lsb:86,molest:72,anywai:[32,70,9],varnam:[41,47,2,49,14,16],tire:[70,6],losslessli:34,bpf_alu64:86,envp:101,x86_thiscal:86,themodul:[41,43,47,2,49,50],add_to_library_group:28,llvmtypekind:66,getprevnod:31,q31:72,tbb:54,shr:70,enabl:[93,70,95,1,97,68,7,98,116,100,101,11,51,75,21,77,79,80,82,24,62,110
,86,89,65,27],getmbb:54,cppbackend:24,she:[117,6],contain:[86,1,70,36,96,97,37,3,71,72,68,98,99,42,5,9,101,11,51,104,105,75,21,57,107,117,114,23,80,81,60,24,61,62,111,63,89,113,65,27,115,28,118],shapekind:104,grab:[41,33,100,96,22,14,15,16,17],image_file_local_syms_strip:112,shl:70,legaci:[47,72,2,49,50],pni8:111,nolink:21,flip:70,vectorize_width:0,target_link_librari:62,image_scn_mem_16bit:112,mileston:34,statu:62,correctli:[94,74,70,72,56,100,49,10,34,14,17,52,105,21,106,78,62,111,86,87,88,27,19],writter:21,sectvalu:21,realign:72,written:[7,86,42,95,55,70,113,97,27,23,38],cxx_flag:36,neither:[32,115,42,34,37,90,51,80,111,72],tent:72,vfp3:9,dagschedul:31,kei:[104,25,74,17,26,86,78,27,34,71,72,6,76],header_data_len:106,parseabl:[74,72],setgraphcolor:17,monitor:42,islandingpad:76,xxxreloc:54,admin:117,handledefinit:[41,43,56,47,2,49,50],dw_tag_inherit:72,test_format:1,unglamor:27,multi_v:21,orig:72,quit:[34,4,72,39,40,42,43,49,101,12,51,14,17,20,105,75,66,24,26,86,90,67,109,31],slowl
i:[24,27],addition:[24,86,32,75,17,21,42,88,65,27,28,67,72],classnam:118,libdir:[67,103],image_sym_dtype_nul:112,treat:[115,86,62,88,80],cputyp:115,alphacompilationcallback:54,otp:72,createcal:[41,43,47,2,49,50,17],acq_rel:[72,88],replic:[63,92,119,94],image_file_machine_arm64:112,dw_tag_typedef:[72,106],harder:[32,74,26,100,56,4,72,19],print_str:[13,14,15,16,19,20],engag:27,demo:21,rootstackoffset:75,povray31:35,revis:[24,70,62,84,106,96,27,90,51,17],inf:[82,21,79,72,106],welcom:[34,37,40,41,108,43,56,45,47,2,49,50,12,13,14,15,16,18,19,20,78,24,27],parti:[74,27,70,51,52],reloc_picrel_word:54,print_float:[13,14,15,16],ro_signed_pat:6,llvm_all_target:24,setcategori:21,matcher:[86,26,22,118],nightli:[27,96],http:[24,70,84,35,53,33,39,26,9,37,96,10,11,27,107,117,31],tokprec:[41,43,56,47,2,49,50],effect:[70,62,42,21,86,11,115],isopt:21,llvm_use_oprofil:62,global_s:17,bitpack:10,appendinglinkag:17,dllvm_enable_p:9,callgraphscc:78,isrematerializ:6,dw_form_strp:106,well:[93,24,66,86,42,116
,21,77,70,88,96,65,11,27,51,115,28,101,85,97,100],makefileconfig:67,cudadevicesynchron:11,undefin:[70,62,105,111,63,88,114,51,80,100],llvmgetbitcodemoduleprovid:31,memory_order_consum:88,mistaken:[13,50],diflagartifici:72,aform_1:86,aform_2:86,namedvar:41,xs1:108,size1:72,size2:72,size3:72,outstream:75,dcmake_build_typ:[24,26,36],densiti:[15,70,2],warrant:66,nodebuginfo:21,takelast:17,bpf_xadd:86,howto:[53,22,109],mcsectioncoff:86,add_gvn:[13,14,15,16],burden:[27,72],n2343:70,zchf:9,n2346:70,n2347:70,loss:[75,17],lost:[40,111,100,12,67,72],aliasresult:42,ldflag:[103,41,43,47,2,49,50,67],necessari:[86,74,96,97,70,4,72,73,66,41,99,42,43,5,100,9,101,10,51,17,68,54,75,21,57,78,80,58,60,24,61,62,111,63,88,27,90,67,109,92],fp5:[6,119],martin:24,profraw:[68,97],page:[70,62,21,69,11,27,23,108],hasdelayslot:6,didn:[70,20,43,34,86,47,106,78,51,16,72,19,17],revert:[24,27],"04e":72,notfp:119,"__cxa_allocate_except":111,home:[24,35,36,101,10,51,17],librari:[62,115,89,42],hannob:26,win32:[10,4,37
,86,24],setmcjitmemorymanag:73,broad:[45,75,21,50,13,18],createexpress:41,overlap:[42,0,86,48,78,90,72],estim:[34,60,0],asmstr:[6,54,119],myfunct:8,encourag:[32,40,70,24,63,27,12,17],ifequ:72,nutshel:17,offset:[99,105,75,86,57,115,5],zeroormor:21,image_file_32bit_machin:112,testsuit:[67,5],bcreader:103,freedom:[72,17],viewvc:39,bodyitem:30,cocoa:72,cmake_cxx_flag:62,attrtemplateinstanti:22,pointless:[74,111],"0x00000110":106,libomp:[33,24],gcov_prefix:97,image_file_removable_run_from_swap:112,"_cuda_ftz":8,downgrad:100,dbuild_shared_lib:24,ndebug:[64,21,62],global_iter:17,interleave_count:0,pty2:72,addpassestoemitfil:78,eax:[54,72,86,23,76,5,6,119],gain:21,spuriou:[70,72],overflow:[27,51],highest:[41,43,56,47,2,49,50,80,13,14,15,16,72,19,20],eat:[41,45,43,56,21,47,2,49,50,13,14,15,16,18,19,20],liblto:65,dmb:88,displac:86,displai:[68,32,86,54,35,45,59,21,1,70,113,117,97,27,38,104,29,114,18],sectiondata:112,w31:72,w30:72,cruel:109,"0xffbef174":78,llvm_enable_assert:[62,17],add_llvm_lo
adable_modul:62,tmp9:[5,105],unconditionali:72,atyp:105,isconvertibletothreeaddress:6,reciproc:72,lastchar:[41,43,56,45,47,2,49,50],intregsregclassid:54,fourinarow:35,rule:[70,98,55,86,88,27,5],acloc:24,tok_var:[41,47],arctan:94,hash_set:17,getjmp_buftyp:70,futur:[62,115],rememb:[70,74,35,36,37,72,41,56,100,9,49,47,14,16,17,19,105,21,78,24,26,86,27],parse_id:[13,14,15,16,19,20],tmp2:[16,47],stat:[99,42,77,79,82,85],cmake_build_typ:[24,62],dw_tag:106,stab:106,same_s:23,dyld:73,sphinx:[24,62,89],"_ztv3foo":5,indirectli:[70,72,88,119],bcc:54,portion:[68,24,54,32,111,116,21,86,85,50,27,76,13,29,72],image_file_machine_sh3dsp:112,perhap:[70,42,75,17,34,72],"7ykb2k5f":107,callingconv:115,getpointertofunct:[73,41,17],enable_sgpr_kernarg_segment_ptr:25,secondli:41,use_bind:[13,14,15,16],accur:[75,97,42],unaryexprast:[41,47,2],parse_var_nam:16,sorri:[40,12],sanitizercoveragetracedataflow:26,swap:[72,36,80],getllvmcontext:70,preprocess:[63,100],aux:17,doubleword:72,downstream:[46,60],"void":[6
8,93,66,70,115,105,42,75,111,21,86,48,88,65,11,80,57,5,60,100],llbuilder:16,build_stor:16,appar:[16,47],x86_stdcallcc:115,theier:32,bpf_x:86,stageselectioncat:21,image_file_machine_m32r:112,bpf_w:86,correct:[32,86,0,33,74,35,96,70,4,72,66,42,100,9,50,10,51,13,17,21,106,78,80,24,61,62,31,63,87,88,65,27,117,67],scalarbitsettrait:94,vector:[70,80,21,86,51,115],bpf_h:86,bpf_k:86,llvm_build_test:62,mllvm:0,initialis:[21,6],bpf_b:86,whirlwind:[56,19],likeli:3,cpu_x86:94,"10x":11,aggreg:[111,70],binop_preced:[13,14,15,16,19,20],bpf_imm:86,"goto":[41,0,34,47,2,49,70,16],even:[93,86,0,34,35,1,36,70,4,72,6,40,47,99,42,5,45,9,2,49,50,10,12,51,74,13,15,16,17,18,104,75,102,78,22,82,60,24,84,26,94,114,115,67,29,109,92,119],rope:17,fcur:34,addllvm:62,neg:[111,27,5,51,115],asid:[72,17],transcrib:[43,20],nex:78,libpo:21,net:[93,39,117],ever:[40,70,42,72,27,12,28,17],metadata:[60,115,57],elimin:[24,61,42,75,85,21,8,79,65,27,51,70,86,72,100],centric:72,old_bind:16,henrik:4,restat:70,q15:72,met:[75,34,
86,72],ccassigntostack:54,image_scn_cnt_initialized_data:112,interpret:[74,1,72,6,68,40,41,43,116,46,47,2,49,50,10,12,13,14,15,16,17,19,20,103,21,106,80,82,24,62,86,113,64,90,115,56,28,67,30],dcmake_crosscompil:9,gcname:115,getunqu:17,credit:27,ebenders_test:101,permit:[79,41,75,72,31,86,47,10,61,23,16,17,119],parlanc:[45,18],volunt:[33,117],immin:96,bpf_jset:86,machineregisterinfo:86,quickcheck:17,fcoverag:[68,97],handlerpcoffset:93,createnvvmreflectpass:8,icc_n:54,overhead:[75,17,26,100,50,71,13,72],calm:[16,47],recommend:[70,74,1,72,8,56,47,48,50,10,51,13,16,19,105,75,78,24,62,26,86,64,27,67],icc_g:54,type:[62,115,42,86,57,89,3,80,85],tell:[68,66,70,62,42,75,116,21,86,89,27,85],"__eh_fram":86,columnend:68,warn:62,all_build:37,wari:51,align_nod:72,gpl:[27,100],dw_tag_apple_properti:106,room:[78,56,19,58],rightr:34,floattyp:17,dw_apple_property_nonatom:106,setup:[65,23],worth:[70,104,17,36,51,85],librarygroup:28,root:[103,86,62,55,1,89,11,27],clang_cc1:[10,5],defer:[13,34,73,50],gi
ve:[68,42,21,86,88,27,115,85],dlsym:[13,67,78,50],binpath:101,subtmp5:[16,47],force_on:62,dragonegg:[39,100,27,86,96],unsign:[94,0,34,70,3,72,68,41,8,43,47,2,49,50,86,17,20,54,105,75,76,21,106,22,42,115,92],secidx:23,gcn:25,quot:[62,25,76,21,94,106,10,28,72,26,119],sata:36,tbaa:51,targetlow:85,answer:[32,70,104,39,34,21,42,47,49,50,51,109,13,14,105,16,72,100],registerlist:54,config:[1,62,89,69,55],confid:27,reloc_absolute_word:54,attempt:[32,70,74,4,72,73,42,116,100,51,85,54,77,78,24,111,31,86,89,27,90,115,67],unnamed_addr:[72,115],"0x7fffe3e85ca8":26,maintain:[66,70,42,75,72,21,86,106,88,78,27,90,115,34,4,17,6],yourregex:5,vfp:[72,80],decl:[43,6,104],stlextra:[41,43,47,2,49,50],privileg:[4,72],gcda:97,unexpetedli:10,sigplan:[75,86],"_except_handler4":111,better:[32,63,0,34,35,36,70,5,40,72,47,49,101,12,14,16,17,19,78,61,111,26,86,88,27,56],argti:72,persist:[26,17],vmcnt:25,newtoset:70,dummytargetmachin:54,promin:[10,35],overestim:72,promis:27,then_:[14,15,16],usertarget:67,"0x7f":[
72,119],mapsectionaddress:73,isel:[86,61,119,54,118],"instanceof":17,grammat:[56,35,19],grammar:[56,15,2,19,66],meat:13,build_for_websit:96,setdescript:21,getvalu:[70,17],somefancyaa:78,went:[14,49,50],thenv:[41,47,2,49],side:[32,86,8,43,72,42,2,49,10,75,70,56,34,14,15,74,17,19,20],bone:[90,54],mean:[32,86,34,1,96,70,104,4,72,6,40,41,99,42,43,5,45,47,48,49,50,12,51,74,13,14,16,17,18,52,20,54,105,75,76,21,102,106,78,114,23,80,24,62,84,25,92,94,113,65,27,115,111,67,30,119],rev64:80,awri:67,add_ri:119,taught:86,f108:8,f107:8,extract:[99,69],getsextvalu:17,unbound:[86,72,54],crucial:[72,84],bpf_end:86,content:[80,42],dw_lang_c99:[72,106],mtripl:[72,79,5,82],dfpregsregclass:54,reader:[70,115,69,113],end_cond:[14,15,16],parseforexpr:[41,47,2,49],nodetyp:54,linear:[24,105,42,86,78,79,82,17],parse_definit:[13,14,15,16,19,20],mytyp:72,verif:[32,25,21,57,72,26],situat:[32,104,54,0,17,21,86,88,50,78,65,111,34,13,67,105,72],infin:72,ineffici:[0,86,47,51,115,16,17],insttoreplac:17,getfunctiontyp
:17,retcc_x86_32_fast:54,dw_at_rang:106,nummodulevalu:115,typesaf:72,ish:[15,2],prefetch:108,isa:[70,108,25,104,75,86,51],getinstrinfo:[86,54],isd:[66,86,54],cpuinfo:36,floorf:0,my_kernel:8,targetregistri:[86,54],hook:[111,86,49,14,85,52],unlik:[32,70,74,36,72,47,50,13,16,17,104,75,78,24,111,31,86,88,65,27,90,115,67,30],featureb:94,featurec:94,featurea:94,agre:[32,27,94],payload:[86,72],hood:[10,68],global_empti:17,tsc701:54,sevenkind:72,ieee754:72,distchecktop:67,sphinx_output_html:62,arm_apcscc:115,memcmp:26,dwell:43,filepo:21,llvm_enable_pedant:62,bodyv:[41,47],a32:80,namespac:[62,115],build_cond_br:[14,15,16],isascii:[41,43,56,47,2,49,50],buildmod:[10,67],dllvm_tablegen:9,bitpattern:72,ri_inst:119,symptom:24,enjoi:117,r14d:6,silli:[45,70,18,100,42],r14b:6,keyword:[86,42],mcdesc:54,r14w:6,matter:[66,70,88,78,27,90,13,72],emitjumptableaddress:54,pointkind:75,modern:[70,108,100,101],mind:[70,56,47,27,16,17,19],stackar:75,bitfield:88,signature_invalid:24,seen:[40,70,54,74,72,21,86,2
,50,78,12,115,34,15,17],vectorcal:31,seek:[32,105,39,27,23,67],minu:[87,72],ty2:72,memcheck:[10,1],image_sym_class_register_param:112,rethrow:111,myset:70,myseq:94,distsourc:67,cudevic:8,regular:[24,7,70,99,35,72,21,94,40,88,107,97,12,34,67,5,26,76],ccassigntoreg:54,secrel32:23,tradit:[24,32,45,86,106,78,114,17,18],simplic:[43,45,75,90,17,20],don:[86,42],pointe:[72,115],simplif:[78,32,85],pointi:94,obtus:105,dog:21,expandinlineasm:54,digress:[15,2],dot:[67,96],"0xffff000000000002":90,hunger:[40,12],visitor:[66,43,45,75,22,85,18],esoter:119,llvm_enable_werror:62,runfunctionasmain:101,selftl:26,image_sym_class_weak_extern:112,istruncatingstor:54,despit:[74,21,86,106,78,102,72,6,119],explain:[39,70,62,99,84,42,34,45,86,47,78,87,80,16,17,18,100],sugar:72,regnum:90,safepoint_pol:74,emissionkind:[72,106],pinst:17,hasgc:34,stop:[24,66,70,62,75,17,26,46,111,78,27,56,76,72,100,19],bar:[70,0,74,1,72,68,8,43,5,100,48,49,10,14,86,17,20,21,106,57,23,62,94,113,30],sacrific:[34,72],bpf_div:86,baz:
[70,0,21,106,49,57,14,113,30],reload:[41,75,26,86,47,61,16],bad:[116,41,33,72,31,94,70,2,106,85,34,4,15,17,100],dw_tag_shared_typ:106,bam:70,addinstselector:54,flagpointi:94,cstdio:[41,43,56,47,2,49,50],instalias:86,"0x40":106,"0x42":115,"0x43":115,v8f64:72,msan:[26,31],subject:[70,84,94,86,27,17],p1i8:[74,8],said:[40,70,72,106,12,111,17],xarch:24,simplest:[86,54,43,56,21,94,37,13,19],attribut:[82,79,46,115],add_memory_to_register_promot:16,triplet:[21,72],howtousejit:103,lazi:[72,42],irmov:31,gr1:72,diflagprototyp:[72,106],abs_fp80:6,configurescript:67,imagmag:[15,2],against:[32,35,3,5,99,8,43,72,100,48,10,51,17,103,104,24,62,111,26,94,64,27],fno:0,uni:8,readnon:[32,8,74,106,57,51,115,72],constantindex:90,uno:72,foobaz:70,createload:[41,47],devbufferc:8,devbufferb:8,devbuffera:8,foobar:[94,70],int32_t:[75,94],"16b":80,loader:24,theoret:[4,17],"__________________________________________________________":17,three:[32,33,34,35,5,116,100,49,10,74,85,19,54,105,76,21,57,78,22,72,24,17,86
,89,113,56,115,111,67],objc_properti:106,specul:[42,111,88,11,51,72],succ_begin:17,trigger:[73,7,94,62,42,75,76,35,63,70,50,10,85,90,72],interest:[32,86,74,35,1,69,37,70,38,72,73,39,40,41,42,43,5,45,100,47,2,49,50,10,12,51,13,14,15,16,17,18,19,20,104,75,21,106,78,80,24,111,26,94,88,27,56,117],basic:88,mo_registermask:86,tini:[34,104],llvmpassnam:62,build_load:16,suppress:[75,70,1,72,94],mce:54,multithread:[75,17],lpae:88,lpad:[111,72],argumentexpr:[13,14,15,16,19,20],llvm_include_test:62,ugli:[15,100,5,2],codegener:63,intregsvt:54,itinerari:[86,6,54],noredzon:[72,115],slt:72,servic:[4,100,42],lex_id:[13,14,15,16,18,19,20],slp:61,splitdebugfilenam:72,calcul:[78,32,61,54,42,72,35,86,106,49,10,14,105,17,60],typeflag:106,occas:70,sle:72,spawn:26,r600:[89,25],gninja:26,folk:[26,84],march:[24,76,31,63,106,79,82,5],disappear:[24,100,36],grown:[15,12,2,40],receiv:[73,17,26,86,51,115,111,72,6,19],make:[62,115,42,86,88,89,80,85],bitmask:72,isspac:[41,43,56,26,47,2,49,50,45],initialexec:[72,11
5],kevin:86,"__emutls_get_address":31,ssl_ctx_new:26,zlib1g:9,kib:21,overs:17,revector:[32,17],binopprototyp:[15,16],vehiclemak:70,ea_r:86,addrawvalu:58,inherit:[78,70,104,42,17,21,86,64,22,4,30,6,119],llvm_dir:[34,62],endif:[68,40,41,21,70,12,4],programm:[86,104,25,75,21,77,88,11,70,67,85],paradigm:[31,17,105],left:[32,70,0,34,35,72,6,41,99,43,56,49,51,14,86,85,19,20,54,94,27,115],projusedlib:67,op0:115,op1:[72,115],just:[32,94,33,34,35,1,36,97,37,70,38,104,4,72,6,100,68,40,41,86,42,43,5,45,46,9,2,49,50,10,12,47,13,14,15,16,17,18,19,20,54,105,76,21,106,78,22,23,80,82,114,60,99,24,84,74,85,26,63,87,88,89,65,27,90,52,115,56,28,67,109,119],op3:54,bandwidth:72,human:[95,24,70,98,110,32,34,94,113,78,38,81,91,72,6,76],nowadai:9,yet:[32,70,34,35,48,72,73,43,2,49,11,74,13,14,15,17,103,54,75,76,21,78,117,111,31,86,89,113,28,26],languag:[86,88,89],character:72,macport:64,save:[86,0,48,37,38,72,73,66,41,8,47,2,49,50,13,14,15,16,17,54,21,106,80,24,62,84,111,26,63,64,90,115,119],vpsubusw:10,u99
9999:84,applic:[93,70,34,35,97,72,6,73,39,40,108,99,45,2,50,10,12,51,74,13,15,17,18,103,54,75,21,78,80,62,111,26,86,27,90,115,28,67,31,119],segnam:21,opc:[41,47,2,119],wojciech:32,fact1:34,fact0:34,getinstlist:17,manual:[85,70,77,62,86],dindex:54,tolmach:75,machinepassregistrynod:78,choic:[95,24,40,70,84,74,17,26,36,49,90,79,12,66,14,72,45],jumptabl:72,unnecessari:86,cxxflag:[103,41,43,47,2,49,50,67],printd:[40,41,47,2,49,50,12,15,16],www:[26,96],deal:[93,32,70,115,104,111,47,106,88,22,27,80,16,17],somehow:[78,17],dead:[24,61,42,76,21,8,92,51,86,72,100],intern:[62,42,86,57,89,115],interg:68,make_pair:[34,41,47],ldststoreupd:86,insensit:42,collect:[97,70,60,42],henderson2002:75,tracker:[27,84],hasopsizeprefix:6,getchar:[41,43,56,45,47,2,49,50],xmm15:6,creatur:[15,45,2,18],burg:61,idiomat:[10,70],bold:109,identifierexpr:[41,43,56,47,2,49,50,13,14,15,16,19,20],uncompress:[24,17,62],mappingnorm:94,buri:70,strippointercast:70,promot:[66,61,42,86,11,27,51,72],burr:82,"super":[86,92,54],fn
ty:72,unsaf:[40,106,88,90,79,12,82,72],dw_tag_formal_paramet:72,movsd:5,argv0:82,culaunchkernel:8,ppcf128:72,emutl:31,simul:[86,72,80],dissassembl:26,movsx:86,commit:70,marshal:90,movsq:86,mrm7m:54,contriv:[100,119],f128:[72,54],down:[32,86,34,72,6,68,39,40,41,104,42,116,2,49,12,14,15,17,19,54,105,56,21,106,78,79,80,82,24,84,85,26,63,64,27,111,67],pair:[32,70,74,72,5,41,42,56,47,49,34,14,86,17,19,54,80,58,25,111,94,88],indexreg:86,mrm7r:54,nomodref:42,contrib:24,subl:[86,5],parsesubtargetfeatur:54,precomput:42,perldoc:24,frameinfo:54,xpass:1,imit:[109,30],ssl_do_handshak:26,r173931:22,fraction:[71,26,60,104],amazingli:[14,49],fork:[4,26],numxform:17,creation:[75,96,72,58],form:[62,115,42],sub1:5,forc:[68,24,70,62,25,0,72,21,94,9,36,48,78,11,111,90,74,67,17,82,106],retarget:[39,86],nounwind:[8,5,106,57,10,51,115,111,72],phid:70,emitbyt:54,autoinsert:17,addmoduleflag:41,bugfix:96,writeattribut:22,processrelocationref:73,llvma:67,multisourc:[10,35,27,106,63],"__i386__":[40,12],unrel:[2
7,17,106,54,96],classid:30,classif:[4,72],featur:25,semicolon:[24,41,62,119,43,56,47,2,49,50,13,14,15,16,19,20],shim:32,visitgcroot:75,diagnost:[46,31,1,22,5,6],glanc:[40,70,12],ship:[24,40,75,89,101,12],dwarfnumb:54,vista:31,getfunctionlist:17,excel:[24,17,54,42],image_scn_align_2048byt:112,a15:36,stackrestor:48,journei:[16,47],subdivid:35,"0fc2d20000":8,iteri:[13,14,15,16,20],libffi:[64,62],setinsertfencesforatom:88,furthermor:[72,105,5,32],pseudo:[86,60,80,118],ignor:[93,0,34,38,72,39,41,42,43,5,45,46,47,2,49,50,13,14,15,16,17,18,19,20,54,21,106,107,60,24,26,86,27,115,56,28,67,29],image_sym_type_int:112,include_directori:62,value_2:28,skip:[70,0,74,72,68,41,43,56,45,47,2,49,50,13,14,15,16,18,19,20,54,75,106,80,86,115],"0x00000150":106,inlineasm:34,skim:70,createvirtualregist:86,mill:21,primer:109,pldi:75,hierarch:[32,115],misread:70,libit:21,fancier:[78,109],intermedi:[39,7,77,62,110,54,33,17,76,48,75,111,56,115,58,74,72,100,19],targetinstrformat:54,hasinternallinkag:17,image_scn
_align_2byt:112,letitem:30,mandlebrot:[15,2],llvmbuilder:13,aspx:70,fnir:[41,43,47,2,49,50],string:[86,62,99,25,21,1,79,113,3,115,81,82,70,5],bpf_add:86,create_argument_alloca:16,kernel_param_2:8,kernel_param_0:8,kernel_param_1:8,print_endlin:[13,14,15,16,19,20],dil:6,did:[111,70,42],dif:32,dig:[45,18,119],iter:[73,32,61,42,75,34,21,86,70,85,27,92,72,60],item:[99,21,80,51,115,38],s_load_dword:25,div:[86,17],kernel_code_version_major:25,round:[68,86,80,96],dir:[24,62,33,26,1,9,106,89,97,67,72,52],sparclit:54,max_len:26,originput:21,nozero:82,sideeffect:72,addr:[81,72,54],addq:90,insertbranch:54,favour:[6,102],addx:119,respres:17,rephras:105,addi:[72,119],xml:115,dwarf:[86,69],livein:76,makeup:17,elsev:[41,47,2,49],slow:[78,24,26,64,79,17],imul16rmi:86,wait:[70,25,33,56,50,117,4,19],patleaf:54,insan:70,canadian:[24,89],shift:[32,66,34,21,86,60,51,115,72,6],max_total_tim:26,bot:[39,27,70],storeregtoaddr:54,extrem:[93,24,86,54,32,17,26,42,47,106,85,78,27,115,88,71,16,72,30,119],bob:94,e
lse_:[14,15,16],opcstr:54,stb_local:72,elect:27,modul:[62,42,86,57,115,85],"__jit_debug_register_cod":101,patchabl:[74,90],"0baz":17,"0x60":99,"0x800":106,sake:[78,17],allocinst:16,getsubtargetimpl:[75,54],visit:[75,85,66,17],tokidentifi:30,deplib:115,perl:75,everybodi:[34,27],numfaultingpc:93,zeroargfp:119,checkout:[11,89],rpath:24,fcomi:86,com_fir:86,appel:75,oop:74,examin:[73,54,17,21,86,85,10,97,74,96,72],effort:[73,32,66,70,43,100,106,27,90,51,4,20],armhf:9,fly:[13,56,86,19,50],reviewe:27,ulp:72,uniqu:[86,115,0,74,5,58,106,71,92,23,72,34,28,90,17,6],ult:[47,49,13,14,15,16,72,20],sourcewar:[65,26],imped:72,nextvar:[41,47,2,49,14,15,16],nearest:[68,72],makefileconfigin:67,predict:[39,70,78,11,3,51],crazi:[21,45,12,18,40],subregion:72,rl247422:26,int_get_dynamic_area_offset:72,exctype1:111,strikingli:[15,2],delete_funct:[13,14,15,16,20],subnorm:[72,8],binarypreced:[41,47,2],"0x000034f0":106,ping:[34,27],f32:[86,72,54,8],idiv:86,till:[117,17,101],purg:70,attrparserstringswitch:22,p
ure:[32,61,54,43,74,86,27,28,30,20],ptr_is_nul:93,doclist:94,testingconfig:1,map:[115,42],exctypen:111,max:[68,21,1,72],usabl:[86,21,79,17,54],intrus:[72,17],membership:[111,17],mag:72,mai:25,underscor:[67,70,106,76],maj:33,grow:[72,21,86,48,49,14,29,17],man:[10,24,21,62,39],noun:70,"0x00001000":106,myglob:106,targetframeinfo:54,purifi:63,containingtyp:72,talk:[40,70,43,56,45,47,66,49,50,78,12,13,14,16,17,18,19,20],image_sym_class_automat:112,abbrevop0:115,abbrevop1:115,config_fil:67,shield:[4,86],iptr:72,comdat:[23,115],"123kkk":21,recoup:115,nbsp:86,gcmetadata:75,entiti:[72,70,17,115,90],group:[70,86,5,99],thank:63,polici:[70,42],build_shared_lib:62,mail:[24,70,84,33,74,31,27,117,109,52],inlinehint:[72,115],main:[70,96,97,37,72,68,48,101,11,21,57,80,81,60,24,111,26,86,65,27,28,92],irbuild:[41,43,47,2,49,50,13,14,17,20],recoveri:[41,43,56,47,2,49,50,13,14,15,16,19,20],parseunari:[15,41,47,2],amdkernelcodet:25,remateri:88,sooner:117,initv:[41,47],possess:[68,17],lo16:86,subproject:[
24,31,27,96,39],getiter:31,xlc:24,careless:70,x11:17,myflag:94,misbehav:33,loopunswitch:32,llvm_dylib_compon:[24,62],continu:[86,115,42],redistribut:27,libgcc:87,tmp8:105,bpf_or:86,arcp:72,tmp7:[5,105],tmp6:105,tmp1:[70,5],tmp3:5,lai:[41,105,72,86,47,57,61,70,13,14,15,16,17],getbinarypreced:[41,47,2],catchret:111,"3rd":72,mess:[24,32],bespok:75,numval:[41,43,56,45,47,2,49,50,115],dw_tag_unspecified_typ:[72,106],arminstrinfo:54,uint32:[93,90],earlier:[68,54,43,31,50,51,28,72],dw_apple_property_unsafe_unretain:106,orr:72,tmpb:[41,47],ori:86,org:[24,94,62,84,35,39,33,76,26,65,9,37,89,96,10,43,11,27,117,70,31],ord:72,orc:[41,31,47,2,49,50],may_throw:111,v8deprecatedinst:54,sn_mapr:34,createasmstream:86,thing:[68,86,115,42,85,21,1,70,27,80,111,5],sn_mapl:34,principl:[70,108,34,45,4,18],think:[70,71,4,72,68,40,8,45,49,12,14,86,17,18,104,105,75,66,61,62,84,42,27],first:[68,27,115,99,42,75,85,21,1,70,88,97,95,3,80,77,82,111,86,5,100],carri:[72,29,17,99,105],fast:[70,86,36,11,79,51,118],oppo
s:[24,61,30,21,114,14,72,52],getfoo:72,numop:[115,54],const_iter:17,indiviu:86,indivis:48,numindic:68,averag:[14,49,38],daunt:62,"0f42d20000":8,broadcast:72,my_kei:70,attrkind:[22,58],foldingsetnod:17,getpredopcod:71,vbr6:115,vbr4:115,vbr5:115,vbr8:115,redefinit:[43,47,13,14,15,16,20],valuedisallow:21,were:[32,86,0,34,1,97,37,70,5,6,68,40,72,48,12,51,74,17,55,21,77,106,80,91,24,111,26,63,88,27,67,31],lcpi0_0:10,mcexpr:86,mrm5m:54,dw_tag_set_typ:106,llvmlibsopt:67,dash:[21,94,26],mageia:24,greet:119,gettargetlow:54,exclud:[5,86,27,116,71,67,72],mrm5r:54,repeatedli:[93,72],unadorn:72,weak_odr:[72,115],squar:[28,27,72,104,94],cumoduleloaddataex:8,llvm_target:[13,14,15,16],"_crit_edg":72,bpf_op:86,advis:[14,96,99,49,58],interior:[75,74,61,104],immsext16:86,channel:39,sparciseldagtodag:54,llvm_analysi:[13,14,15,16,20],ptrloc:[75,72],pain:[21,17,84,101],norman:86,trace:[61,74,21,106,78,26],normal:[93,70,0,74,1,97,4,5,7,98,99,72,51,95,17,75,21,77,106,78,22,80,114,24,62,84,110,111,86,87,88,
89,27,90,115,67,29,92,119],track:[32,86,34,1,70,72,6,41,42,43,100,47,2,51,74,15,16,17,20,75,106,78,24,85,26,63,27,90],nestabl:[30,119],cucontext:8,f3_12:54,r31:[86,72],isglobaladdress:54,synonym:99,cumodulegetfunct:8,dw_form_:106,rev128:80,llvmgxx:67,isphysicalregist:86,defaultconfig:17,gracefulli:17,show:[3,86,1,5],occumul:26,shoe:94,threshold:[32,11,72,97],corner:90,getadjustedanalysispoint:42,emitexternalsymboladdress:54,dice:17,fenc:[70,51,88],enough:88,argidx:41,frexp:72,adc64mi32:6,parametr:30,ftest:97,dict:26,hello_world:25,sparcisellow:54,intptr_t:[41,0,47,2,49,50],gep:100,variou:[70,71,72,73,108,42,116,51,86,85,68,76,77,107,24,62,111,26,8,88,89,115,28,67,92],get:[88,80,42],mung:[32,105],secondari:[111,27,90],repo:24,emitlabel:86,repl:50,wheezi:9,inreg:[86,72,115,54],gen:[118,25],r10b:6,busiest:84,nullptr:[41,43,56,31,47,2,49,50,70,72],yield:[32,105,74,21,115,72,35,17],r10d:6,stupid:85,mediat:42,r10w:6,wiki:[24,26,62],kernel:[26,86,36,11,82,72],setpreservesal:78,"__builtin_s
etjmp":111,intrinsicsnvvm:8,spars:[24,66,61,86],msa:[31,72],sean:17,testcas:[43,116,27,20,72,17],"0b1001011":119,infinit:[32,26,86,72,42],expandatomicrmwinir:88,allroot:35,innov:31,maskedbitset:94,datalayoutpass:41,enumer:[86,115],label:[115,86,60,25],innoc:[14,49],enumem:54,volatil:[75,100,86,88,42],across:[32,0,74,38,72,6,40,8,50,12,51,13,17,21,106,78,80,24,61,111,86,88,90,28],august:73,parent:[1,70,60],fpregsregisterclass:54,getdagschedul:31,modref:[119,88,42],parseprototyp:[41,43,56,47,2,49,50],copyabl:17,false_branch_weight:3,llvm_enable_sphinx:[24,62],blocklen:115,audienc:51,library_nam:28,litloc:41,p0i64:5,improv:[24,40,84,54,32,75,34,26,1,42,50,78,11,111,12,51,74,13,96,72,31],peephol:[66,31,86,47,2,49,50,78,13,14,15,16,17],among:[32,92,86,24,34,8,70,42,89,22,23,51,17],acceler:96,undocu:70,imm:[29,86,54,119],unittest:62,tsflag:54,getnumsuccessor:70,cancel:111,iscal:[6,119],inadvert:[4,5],mctargetdesc:22,xadd:88,ultim:[70,33,1,50,13,67,72,6],cleargraphattr:17,p0i8:[72,8],mark:
[68,24,86,25,75,34,1,88,101,93,70,51,115,111,29,72],certifi:100,"0x4004f4":81,calledcount:85,fadd:[66,86],squash:[24,80],f92:8,f93:8,f90:8,f91:8,f96:8,f97:8,f94:8,f95:8,univers:[68,81,27,70,97],f98:8,f99:8,those:[32,86,34,1,36,97,70,38,4,72,6,68,39,41,99,42,5,46,47,10,74,16,17,54,105,75,21,106,78,24,85,26,94,88,27,90,111,28,67,31],sound:[26,42],isvararg:17,interoper:[40,75,72,12,111,17],desttool:67,"0x3feb":106,invol:111,"0x3fea":106,invoc:[24,62,116,86,5,85,78,67,113,72],isdoubl:119,gvneedslazyptr:54,advantag:[40,70,105,75,72,21,86,47,2,88,27,12,80,58,15,16,17,92],mfloat:9,bytecode_libdir:67,destin:[41,99,54,111,86,47,10,3,51,16,72],llvm_gcc_dir:35,variable_op:119,my_function_precis:8,cudeviceget:8,liveoffset:75,same:[70,115,42,86,88,89,57,80,85],ssl_library_init:26,image_file_machine_unknown:112,pad:[68,99,76,48,90,115,111,72],emitloadlink:88,pai:[10,27,70,54],oneargfp:119,add32mi:6,exhaust:[75,24,86,51],assist:[70,63,2,51,67,15,118],executionengin:[24,86,101,13,14,15,16,17],capab
l:[72,40,108,8,43,47,2,50,12,13,15,16,17,20,54,21,66,78,24,86,42,89,92],kernel_code_entry_byte_offset:25,executeprogramandwait:4,runonmachinefunct:[86,54],appropri:[32,94,33,9,1,96,70,71,4,72,6,66,86,8,104,56,47,2,51,74,15,16,17,19,54,75,21,106,78,80,58,24,84,111,31,42,88,27,117,67,92],macro:[68,24,70,62,21,77,97,72],markup:[26,70,89],v4p0f64:72,spadini:32,getobjfilelow:75,asmnam:54,dllvm_include_test:24,roughli:[61,104,111,86,88,96],emitleadingf:88,release_22:24,execut:[88,85,60,89,42],speccpu2000:35,mo1:54,mul_ri:119,mygcprint:75,subblock:115,aspect:[30,40,41,62,43,17,31,86,106,49,75,27,12,56,14,72,19,20],mul_rr:119,flavor:[72,17,106,119],"125000e":72,xxxtargetmachin:54,critial:96,param:[70,8,75,1,117,37,13,14,15,16,17,20],cumoduleunload:8,sparcregisterinfo:54,"__cxa_throw":111,dclang_tablegen:9,setrequiresstructuredcfg:54,mcregaliasiter:86,mov:[8,72,86,88,23,5],coverage_pc:26,libsfgcc1:9,mod:[72,42],cast_or_nul:17,is_ptr64:25,ifstream:8,qnan:72,server:[26,17,31],bb0_4:8,bb0_5:8,p
rologuedata:115,either:[32,63,34,35,1,96,70,72,6,73,40,41,99,8,43,56,45,100,49,10,12,51,74,13,14,86,17,18,19,103,54,105,75,76,21,77,66,57,79,80,81,24,85,26,42,88,65,27,90,115,111,67,119],bb0_2:8,physreg:86,nice:[32,70,5,40,43,56,45,47,2,49,50,12,13,14,15,16,17,18,19,20,21,78,24,119],mappingnormalizationheap:94,fulfil:[4,104],exitcod:1,fastcal:[31,86,72],ascend:[68,72],substitu:10,llvm_enable_doxygen_qt_help:62,adequ:[75,37,62,54],confirm:70,llvmscalaropt:52,recomput:[78,17,42],ffi_library_dir:62,"__llvm_stackmap":90,inject:70,dw_op_plu:72,ret_val:[13,14,15,16,20],overli:27,broken:[39,100,54,1,10,27,80,78,119],cuinit:8,selectaddrrr:54,cornerston:105,x32:5,x30:72,dw_ate_address:72,island:[108,25],loadinst:70,pluginfilenam:82,deopt:[74,72],llvm_targets_to_build:[24,37,62],road:31,livecount:75,hashtbl:[13,14,15,16,19,20],strip:[24,21,77,89,97,67,92],"0x3fe9":106,ymax:[15,2],mingw32:[10,117,86],overwrit:[21,90,52],int_stacksav:72,legalact:54,savethi:5,x86inst:6,source_x86_64:81,dw_ate_bo
olean:72,jite:[39,101],gori:27,buggi:63,stringmapentri:17,gprc:86,reappli:27,possibl:[62,115,42,86,88,89,80,85],optnum:21,poolalloc:42,unusu:[40,75,86,87,12,67,17],sanitize_address:72,embed:115,i32mem:119,emitpseudoexpansionlow:22,machinefunctioninfo:[76,86],emitloc:41,threadloc:[72,115],subprogram:[41,72,106],deep:[32,70,104],simpletyp:112,deem:[66,63,72,96],emitvalu:86,proport:[67,21,113],fill:[41,42,43,17,21,63,47,2,49,50,78,70,56,117,94,72,45,106],again:[34,35,96,72,40,43,5,47,49,50,12,51,13,14,16,17,21,78,80,111,26,63,87,109],mangler:54,field:[68,86,99,105,42,75,1,114,51,115,71,72],"_cxxthrowexcept":111,xxxgeninstrinfo:54,"0xc0de":115,riinst:119,architectur:[86,62,25,1,88,57,97,11,79,80,81,82,5],reextern:[13,14,15,16,20],"0th":105,sequenc:[32,70,0,74,5,68,42,72,51,34,17,54,105,75,78,22,80,82,111,26,86,90,30,119],arrayidx:72,unload:[78,72],descript:[88,115,42],v2f64:72,version_less:62,winzip:37,getreturntyp:17,unset:[41,30],insertbefor:17,forget:[75,41,70,84,104],mrm3m:54,dollar
:36,dw_form_ref2:106,sunk:42,llvmdummyasmprint:54,dw_form_ref1:106,regno:86,mrm3r:54,dw_form_ref8:106,children:[67,104],edg:[75,5,26,86,85,111,72,60],image_sym_class_clr_token:112,at_byte_s:106,cmake_c_compil:24,daniel:106,brtarget8:54,immt:6,image_scn_lnk_comdat:112,r14:[86,6],r15:[76,86,72,6],r12:[72,86,23,6],r13:[86,6],r10:[86,87,6,8],r11:[87,72,6,90],fals:[32,70,47,1,3,71,72,41,104,42,43,116,100,9,2,49,50,34,14,17,54,21,106,78,22,81,82,24,85,67,92],offlin:[86,8],util:[82,42,99,69,38],fall:[32,41,54,75,17,21,47,2,49,50,70,72,74,13,14,15,16,5,60],"0x629000004748":26,"__clear_cach":72,basereg:86,run_funct:[13,14,15,16],int8ti:17,gcno:97,use_end:17,stderr:26,fuzzerinterfac:26,quiet2:21,webkit_jscc:[72,115],rawfrm:[54,119],globalalia:78,lawyer:27,val3:72,val2:72,val1:72,val0:72,val7:72,excit:[40,12,31,96],abc:72,parsedattrinfo:22,excis:72,abi:[62,80],worthwhil:17,abl:[68,24,61,99,105,42,75,72,21,63,9,48,85,27,92,51,28,86,5,26,100],invok:[24,70,62,42,75,85,21,86,48,89,97,3,51,115,111,
5],cont6:111,abu:99,g0l6pw:24,hurdl:100,exit5:8,cumemcpydtoh:8,valc:8,variat:[54,42,0,111,86,4,109],vala:8,sophist:[75,35,86,78,109,72],analysisusag:42,memory_order_acquir:[72,88],test_exec_root:1,variad:70,xemac:[24,67],valu:[70,95,1,97,3,38,5,7,98,99,42,116,46,103,55,77,79,80,82,62,25,110,86,88,89,113,115,118],quieta:21,search:[24,61,62,75,5,21,1,85,71,27,111,28,67,72,26],unabbrevi:115,image_rel_amd64_sect:23,createfcmpon:[41,47,2,49],r12w:6,r12b:6,val_:16,r12d:6,codebas:[70,84],narrow:[24,66,70,105,42,116,63,88,85,17],iuml:86,quotient:72,primit:88,transit:86,establish:[54,75,74,86,27,51,111,13,72],memor:70,vptr:[72,17],mylib:67,zeroiniti:72,parse_expr:[13,14,15,16,19,20],tackl:[13,16,47,100,50],two:[62,115,25,42,88,3,80,85,60],x86targetasminfo:54,getbit:21,saptr:72,desir:[32,70,74,1,71,72,6,73,40,5,10,12,51,17,54,75,21,106,78,23,62,85,90],upper16:23,penultim:54,reconfigur:[28,117],particular:[32,63,34,35,1,97,70,72,6,73,86,8,104,56,47,48,50,10,51,74,13,16,17,19,68,54,105,75,21,10
6,78,22,24,85,26,42,88,90,115,111,28,30,31],ultrasparc:[24,54],dictat:[87,70,17],none:[86,74,1,96,71,4,72,99,11,13,14,15,16,17,19,20,105,75,21,78,81,82,24,111,63,67,119],dep:[13,14,15,16],elsebb:[41,47,2,49],dev:[39,40,88,84,75,17,79,9,66,106,78,27,12,51,74,82,70,30,76,119],remain:[68,32,70,115,99,75,5,47,2,111,96,10,27,90,72,74,15,16,17,76,119],paragraph:[34,70,109],deb:9,binfmt_misc:24,def:[66,61,76,86,114,71],share:[24,86,62,8,111,116,63,9,88,89,85,79,92,115,82,71,67,70,101,72,100],sln:37,loopend:[41,16,47,2,49],mcobjectstream:86,minimum:[24,66,70,62,54,116,26,63,106,27,90,56,72,31,19],image_file_executable_imag:112,dw_ate_unsign:72,strlen:17,retcc_x86_32_ss:54,calltmp1:[43,14,49,20],calltmp2:[13,50],kcc:26,awkward:[21,70,105],secur:[32,21,26,50],cse:[13,66,61,88,50],comfort:34,cst:72,csv:35,bar_map:70,regener:[63,54,96],"0x0000000000000002":101,number2:34,number1:34,pat:[86,6,54],memory_order_seq_cst:[72,88],bloom:86,ccpassbyv:54,sse4:0,binloc:41,sse2:[10,72],mislead:70,hfc:93,c
s1:[72,42],image_sym_dtype_arrai:112,rotat:[66,86],intermediari:17,isconstantpoolindex:54,mydoctyp:94,through:[62,42,86,88,115,85,60],suffer:75,llvm_src_root:[67,35,52],patfrag:54,pch:106,ssl_free:26,good:[24,66,61,108,42,116,21,86,70,36,85,27,51,96,72],pollut:[70,89],compound:68,nor:[32,70,105,75,34,86,37,111,90,115,67,4,72,100],adventur:17,complain:[24,65],cmpflag:34,mysteri:105,micro:70,token:86,findsymbol:[47,2,49,50],distdir:67,subsystem:[86,72],harm:86,mm5:[6,119],unequ:72,mm7:[6,119],hard:[86,99,84,111,34,45,94,9,2,36,64,27,85,51,102,4,70,72,6,52,100],mm1:[6,119],idea:[32,66,70,33,34,21,36,49,50,43,60,27,51,115,111,119,72,35,56,106],functor:70,mm2:[6,119],image_file_machine_thumb:112,connect:[117,32,61,17,84],orient:[17,40,70,12,104],sparcgenregisterinfo:54,usedlib:[67,52],dw_tag_xxx:106,isref:119,variable_nam:62,dagcombin:66,ccifnest:54,isinlin:106,cconv:72,mmx:[86,72,54],intregssubregclass:54,suspici:4,b32:8,cuctxdestroi:8,mmi:76,dw_tag_union_typ:[72,106],omit:[32,7,86,98,9
5,26,77,49,113,78,79,90,56,38,81,14,59,114,72,19],intermingl:72,buildmast:117,testfnptr:72,llvmgccdir:35,vmov:5,perman:100,"__c_specific_handl":111,callon:17,registerasmstream:86,printsth:32,exchang:[24,17],harfbuzz:26,argstart:21,done:[32,86,33,34,35,36,96,70,71,4,101,72,73,66,41,99,43,56,47,2,49,50,10,74,13,14,15,16,17,19,20,104,75,92,21,77,106,57,78,62,84,85,31,94,87,88,27,111,67,30,119],dylib:[10,64],stabl:[92,27,17,46,96],rootnum:75,functionindex:58,image_sym_type_uint:112,somewhatspecialsquar:104,expansionregiontag:68,least:[32,70,33,47,1,36,96,72,41,99,42,43,56,9,2,49,50,74,13,14,15,16,17,19,20,54,21,22,80,24,111,86,88,27,90,115,119],createpromotememorytoregisterpass:[41,47],is_arrai:56,unalign:[51,88],cfe:[24,11,27,84,96],binop:[41,43,56,47,2,49,50,13,14,15,16,19,20],selector:[24,111,86,106,22,118,72],part:[32,86,34,1,37,70,72,6,40,41,104,42,43,116,45,47,2,49,50,10,12,51,74,13,14,15,16,17,18,19,20,54,105,75,56,21,106,78,22,80,24,62,85,26,94,88,27,115,111,28,67,92,31],pars:11
5,toolset:62,contrari:86,cyclic:24,i32:[68,93,100,75,111,86,57,3,80,5,60],"_tag":[13,14,15,16,19,20],horizont:5,i8mem:86,"_runtim":90,fpinst:6,constval:17,xxxtargetlow:54,uncontroversi:75,char6:115,debug_loc:91,consol:[13,39,86,109,50],built:115,build:[57,115,42],extractel:80,cleanuppad:111,distribut:[24,70,116,1,9,89,101,37,27,60,100],significand:72,previou:[68,66,70,99,115,86,88,113,27,80,5],chart:0,most:[63,34,1,36,96,70,38,72,73,66,8,5,100,9,101,11,51,86,103,104,105,75,21,77,80,58,24,62,25,111,26,42,88,89,64,27,28,67,29,118],cygwin:[24,31,86,37],undetect:26,charg:86,dimension:[15,105,2,8],addsdrr:119,"234000e":[43,20],resolvereloc:73,t2item:34,sector:4,visitbasicblock:17,carefulli:[75,47,106,27,51,16,72],"__try":111,particularli:[70,54,5,31,88,78,51,72,17],fine:[70,104,105,21,37,51,80],find:[68,66,46,62,42,116,21,1,70,118,97,27,111,86,85],realmag:[15,2],merger:34,filesizepars:21,printmemoperand:54,hasctrldep:[6,119],unus:[7,61,8,26,86,70,28],express:[86,70,42],cheaper:[93,17],ll
vmdummycodegen:54,wrinkl:48,restart:[78,117,26,17],misnam:86,mycustomtyp:94,image_file_machine_arm:112,diloc:5,common:[66,70,115,99,105,42,75,111,21,86,88,89,11,27,51,80,114,100],intptrsiz:75,"__nv_isnanf":8,printout:[77,17],decompos:[66,27],atomtyp:106,reserv:[93,54,74,26,86,96,90,115,72,31],mrm1m:54,ccdelegateto:54,dispatch2:[111,72],dispatch1:72,someti:72,initializemodul:41,debat:70,smallest:[63,72],"0b1234567":72,subscript:[32,72,42],experi:[109,62,34,106,36,74,13,67,50],altern:[85,86,62,97],dw_at_apple_property_gett:106,bourn:[24,21,100],appreci:27,complement:[72,17,105],unrol:11,popul:[24,66,8,43,111,26,1,89,22],alon:[56,21,86,10,27,67,19],tempor:72,densemapinfo:17,cpufreq:36,libcrypto:26,simpli:[32,70,74,35,4,72,99,42,43,5,100,9,50,10,13,17,52,20,54,105,56,21,77,106,78,24,85,86,27,90,19,111,67,29],fldcww:86,point:[70,62,42,86,88,79,115,85,60],instanti:[73,94,104,54,21,1,78,97,22,17,6,119],linkagenam:72,alloca:[111,86,70],suppli:[111,63,36,89,96,115,113,72],setinternallinkag:1
7,throughout:[73,68,115,24,80,67,4,72],backend:[85,62,88],global_begin:[70,17],dovetail:[16,47],aarch64:[89,80],linkonce_odr:[72,51,115,8],retq:[74,76],val1l:72,globalvarnam:72,reformat:29,multiclassobject:30,image_sym_class_extern:112,lto_codegen_add_must_preserve_symbol:92,unnecessarili:[78,42],gap:[70,72],understand:[66,1,42,111,86,70,27,115],atomicrmw:88,isstoretostackslot:54,raw:[73,68,7,86,98,110,43,95,21,77,97,22,58,29,35],noexcept:111,autoregen:54,unifi:[72,51,115],fun:[40,45,23,12,67,13,14,15,16,18,20],everyon:[40,27,12,70],subsect:17,propag:[24,61,62,76,21,86,11,111,72],lto_codegen_add_modul:92,mystic:[40,12],semispac:75,itself:[94,33,34,1,48,97,70,72,40,41,86,42,43,116,100,9,2,49,50,10,12,51,47,13,14,15,16,17,19,20,104,55,75,56,21,66,106,78,80,105,24,62,74,92,26,63,89,27,90,115,111,28,67,30,119],codegen_func:[13,14,15,16,20],"0x00007ffff7ed40a9":101,case_branch_weight:3,myseqel:94,incarn:66,benign:35,getlin:[41,106],flag2:34,flag1:34,nameflag:106,keyr:24,"0x3fed":106,sym:
[33,114,23],keyt:17,moment:[75,74,88,76,72,20],travers:[32,86,104,75,34,1,28],task:[111,66,70],n_bucket:106,entri:[115,57,60,25,42],"16mib":23,uint32_t:[94,106],spend:1,instr_begin:16,explan:[62,25,104,34,100,72],ldm:72,ldl:11,shape:[96,17,6,104,106],at_decl_lin:106,depriv:17,stwu:86,cut:[21,60,54],shiftinst:70,snan:72,singlesourc:[10,35],"0b000000":54,restructuredtext:[109,89],objectbodi:30,largeconst:90,realloc:42,rgm:78,postcal:75,bin:[24,97,33,116,21,9,36,89,10,65,37,26,6,52],"0x00001023":106,xcodebuild:62,llvm_tarball_nam:67,judgement:27,transmit:72,fucomip:86,irgen:51,bit:[80,25,88],ccassigntoregwithshadow:54,knock:70,writealia:34,semi:[28,75,40,12],sema:22,has_jit:28,aliasset:[54,42],often:[66,70,62,42,75,85,21,86,88,27,51,80,111,5,100],steensgaard:42,weakodrlinkag:17,dllimport:[72,115],bach:4,"0x00002000":106,breviti:[80,8],sizeof:[72,11,100,17,8],sparcreg:54,cont:[111,72,48],per:[86,74,35,38,72,68,99,8,50,10,13,17,104,75,21,106,78,22,60,62,92,26,94,88,114,90,115,111,28,67,3
0],usernam:[24,27],substitut:[32,86,5,1,88,90,72,119],mathemat:[8,34,100,56,72,19],larg:[70,116,21,86,88,27,23,115,38,82,85],chandlerc:84,cmake_instal:62,reproduc:[26,63,47,10,27,16,85],createentryblockalloca:[41,47],bb0_1:8,intial:17,patient:78,dw_tag_template_value_paramet:72,initialse:44,addpdrr:119,unvectoriz:0,s15:72,dllvm_use_sanitize_coverag:26,adc64rm:6,addpdrm:119,float_of_str:[13,14,15,16,18,19,20],impos:[17,86,27,90,76,72],usb:36,constraint:[86,66,77,111],preclud:[74,80],createfadd:[41,43,47,2,49,50],litconfig:1,forexprast:[41,47,2,49],disclosur:27,timberwolfmc:35,fmin:72,add32mi8:6,ostream:[70,17],nsz:72,frames:75,n2242:70,nsw:[27,72,51,105],inclus:[97,67,4,118,72,52],errno:[72,42],megabyt:[116,89],x86_fastcallcc:115,subst:[30,6,119],includ:[62,42,86,88,89,3,80,85],cptmp0:54,cptmp1:54,forward:[32,70,74,4,72,66,42,56,45,49,17,18,19,20,75,106,58,111,31,86,115,30,119],image_scn_align_1byt:112,llvm_build_doc:62,reorgan:[31,94],dwarfdump:69,int8_t:94,translat:[32,70,72,68,40,
41,98,42,100,12,51,86,17,54,105,21,106,22,24,94,88,118],llvmfoldingbuild:13,sdk:[24,11],concaten:[30,24,17,10,80,72,119],internaltarget:67,mfenc:88,exported_symbol_fil:67,movsx16rr8w:86,movnt:72,v8i16:54,curr:18,xxxiter:17,attrinfomap:22,flow:[93,86,42,85,46,70,11,27,51,111,72],debug_nam:106,functioninfo:93,codgen:20,isdigit:[41,43,56,45,47,2,49,50],prevail:99,singli:75,cmake:89,crypt:27,sequenti:[72,86,5,115,111],declas:72,llvm_target_arch:62,bpf_rsh:86,vg_leak:1,asymmetr:105,deseri:22,image_scn_lnk_remov:112,functionnod:34,mismatch:[80,113],globalvar:115,formatt:72,tok_numb:[41,43,56,45,47,2,49,50],cater:22,deserv:[72,51],image_sym_type_float:112,image_comdat_select_associ:72,machine_version_step:25,debugloc:41,downcast:104,i16:[86,72,54,8],tradeoff:[13,75,88,50],required_librari:28,dwarfregnum:54,"0fb5bfbe8e":8,queri:[70,42,21,86,88,51,58,71,72],strex:88,regallocregistri:78,demangl:[81,114,106],privat:115,antisymmetr:34,sensit:[46,62,42,76,26,94,78],elsewher:[67,54,74],createtarg
etasminfo:54,granular:4,cumoduleloaddata:8,exit:[86,60],priority_queu:17,loopinfowrapperpass:78,bpf_sub:86,immsubreg:54,vla:23,named_valu:[13,14,15,16,20],cudeviceptr:8,volum:[39,17,67],implicitli:[86,0,70,72,40,41,43,56,45,47,2,49,50,12,13,14,15,16,17,18,19,20,21,78,94,27,90,115,67,30,119],ilist_half_nod:31,flagscpu2:94,parenthandl:72,postord:61,stddef:26,refer:[86,62,115,42,116,1,85,70,80,81,82,114,5,60],pbqp:[86,79],"0x9":86,"0x8":86,fortun:[40,70,47,49,50,12,13,14,16,17],veli:86,"0x3":[90,86,17],segmentreg:86,"0x1":[90,86,17,106],"0x0":[86,17,115,25],toplevelexpr:[41,43,56,47,2,49,50,13,14,15,16,19,20],"0x6":86,"0x5":[86,90],"0x4":[86,90],append:[62,99,72,98,10,97,115,116,14,17,52,119],"0x1f84":81,resembl:105,unwound:72,access:[62,88,80,42],agg1:72,microprocessor:[86,72,54],regstat:[76,86],deduc:[72,51],camlp4:[18,19],sint:72,"0xk":72,dw_macinfo_defin:72,"0xh":72,partialalia:42,"0xm":72,jonathan2251:53,"0xc":[86,115],"0xb":86,"0xa":86,sine:[72,54],sinc:[63,94,33,34,36,96,37,70,7
1,4,72,6,73,41,86,8,43,56,45,100,9,2,49,50,47,13,14,15,16,17,19,20,54,105,75,104,21,106,78,60,99,24,74,111,31,42,87,27,90,115,67,109,30,26],"0xe":115,"0xd":[86,115],remark:[85,0],fpregsregclass:54,cerr:8,foundat:[78,27],mov64ri:54,tool_nam:24,expr1lh:68,toshio:86,getimm:54,advoc:70,projlibspath:67,select_isd_stor:54,"_regoffset":6,at_encod:106,int32ti:17,bpf_jne:86,trait:[70,94,17],attrspel:22,image_scn_align_512byt:112,trail:[68,94,105,17,21,1,70,72],train:113,account:[24,84,104,75,34,27,117,72],dcmake_c_compil:26,komatsu:86,rdynam:[15,16,2,50],obvious:[32,66,86,105,42,33,17,21,45,70,78,27,56,34,72,18,19,119],ch8:41,unread:[70,88],fetch:[24,3,72,86],aliv:[78,32,86,17,34],n2657:70,abcd:115,sqlite:26,tarbal:[39,96,9,67],virtualindex:72,onlin:[62,16,47],formmask:54,serial:[39,66,34,94,22,76,67,52],everywher:[10,13,94,50,34],surfac:86,rootcount:75,optyp:54,add32rm:6,inteldialect:72,llvm_lit_tools_dir:[37,62],ssl_ctx_use_privatekey_fil:26,add32rr:6,add64mr:6,tag_memb:106,act:[32,70,34,8
6,106,72,60,17],getehframesect:73,inst:[32,26,17,54,119],nothidden:21,llvm_include_dir:62,redund:[86,11,61,21,51],bind:[70,72,100],correspond:[32,94,34,37,70,71,5,6,68,66,41,104,8,43,72,46,49,74,14,86,17,100,19,20,103,54,105,75,76,21,106,57,78,79,23,80,81,24,61,62,85,31,63,88,89,27,56,115,111,30],afterloop:[41,47,2,49,14,15,16],region1:68,region0:68,noitin:82,fallback:115,loopendbb:[41,47,2,49],writethunkoralia:34,declet:72,ptr_rc:86,symbolt:17,cpu_x86_64:94,bunch:[45,35,100,2,50,13,15,17,18],acycl:[86,61,54,118],outputdebuginfo:21,labor:21,i1942652:72,typemap:66,immtyp:6,basic_ss:119,uncategor:21,passnam:77,dan:94,spell:[27,22,70],dai:[39,40,62,24,96,27,12,17],symbol2:23,symbol1:23,nval:72,mylist:94,isimplicitdef:6,strive:[10,70],createfcmpult:[41,43,47,2,49,50],parseexpress:[41,43,56,47,2,49,50],mem2reg:[75,51],mem2ref:74,sin:42,dllvm_libdir_suffix:62,add16ri8:6,lie:[74,21],getloopinfo:78,intellig:[72,17],cmake_module_path:62,addtypenam:17,llvmsupport:[24,52,67],fluctuat:42,rex:72
,paramattr:115,twice:[24,33,34,50,78,37,13,67,72,17],createmyregisteralloc:78,rev:[80,13,14,15,16,19,20],ret:[100,105,75,111,86,57,3,80,5],stub:[34,86,17,108,54],typenam:[56,17],stuf:5,rel:[70,33,35,1,96,38,72,39,41,5,100,49,51,14,17,52,75,21,23,60,24,62,31,86,87,113,90,115,29,26],rem:86,image_file_machine_powerpc:112,rec:[13,14,15,16,18,19,20],dw_apple_property_assign:106,ref:[24,42,72,8],defens:27,math:[82,21,79,70,51],clarifi:[106,88],insid:[32,86,33,34,35,1,70,101,72,68,39,9,50,10,74,17,104,55,75,106,57,78,22,111,26,94,89,115,30,119],workflow:26,flaghollow:94,thejit:[41,47,2,49,50],standalon:[28,86,40,41,45],invas:[27,94],bleed:39,setinsertpoint:[41,43,47,2,49,50],retain:[61,17,21,100,78,27,80,67,72],hex64:94,suffix:[78,66,70,62,54,25,43,17,21,1,99,10,97,98,79,95,67,72,31,20],createcompileunit:41,pgo:113,targetregsterinfo:86,pgr:39,ualpha:30,secondlastinst:54,facil:[70,42,75,21,1,106,37,67,4,100,52],suffic:80,dllvm_link_llvm_dylib:31,target_data:[13,14,15,16],messag:[70,62,99,11
0,85,21,1,5],sadli:84,dw_apple_property_sett:106,memory_order_releas:[72,88],llvmusedlib:67,comparefp:119,ogt:72,mytool:67,s31:72,s32:8,pg0:34,pg1:34,"__objc_imageinfo":72,nontempor:72,image_file_aggressive_ws_trim:112,source_i386:81,rpass:0,structur:[70,99,55,5,86,42,69,88,115,85],ssl_ctx_use_certificate_fil:26,"123mb":21,then_val:[14,15,16],machinemoduleinfo:76,plaintext:89,thereaft:90,subclassoptionaldata:34,ehobj:111,deprec:[62,54,31,36,89,10,115,17,35],ispack:115,have:[93,70,1,97,38,5,68,66,99,42,46,11,51,85,100,75,21,77,114,23,80,60,62,25,111,86,88,89,27,115],tidi:78,llvm_build_dir:24,bpf_jsge:86,min:[33,26,72],mib:23,mid:[72,48,51],in64bitmod:86,sspreq:[72,115],mix:[70,105,92,86,5,65,28,17],builtin:[1,88,115,55],bpf_jsgt:86,startval:[41,47,2,49],p3i8:8,mit:27,isloc:[72,106],poison_yet_again:72,unless:[32,70,74,35,96,97,72,7,5,100,47,49,10,51,14,16,17,54,105,75,21,78,79,62,110,25,85,26,89,27,90,111,67,109],setpreservescfg:78,eight:[86,72,99],transcript:[13,50],v8i32:72,arm_aap
cs_vfpcc:115,gather:[28,111,21,27],request:[73,24,99,75,72,27,115,111,92],image_file_machine_mipsfpu16:112,getdirectori:[41,106],institer:17,llvmcreatejitcompil:31,instantiatetemplateattribut:22,occasion:[75,115],removemodul:[47,2,49,50],addpassestoemitmc:73,addtmp:[41,43,47,2,49,50,13,14,15,16,20],dllexport:[72,115],elid:[75,48,119],ifconvers:54,text:[70,62,99,25,86,113,114,5],ifconvert:54,empir:11,sanitize_thread:72,llvm_map_components_to_libnam:62,setter:[72,22,17,106],dw_tag_pointer_typ:[72,106],textual:[61,79,86,50,10,97,22,27,13,29,119,72,6,100],loweroper:54,src_root:24,"__morestack":87,cpunam:[82,79],inferior:101,data64bitsdirect:54,print_newlin:[13,14,15,16],lower_bound:17,litvalu:115,sysv:114,disagre:72,bear:5,dllvm_dir:62,image_sym_class_member_of_struct:112,increas:[32,70,0,43,63,27,51,102,82,92,6,20],build_sub:[13,14,15,16,20],at_end:[13,14,15,16,20],callpcrel32:119,integr:[62,69],printlabel:54,conform:[24,1,75,17,94,70,79,72,100],project_nam:52,emitfnstart:86,ssl_ctx:26
,dw_tag_file_typ:106,femult:31,dpython_execut:36,reform:70,pattern:[86,88,80],boundari:[32,115,17,86,50,80,72],llvmcreateinterpret:31,progress:[61,62,75,17,45,1,96,27,76,108,86,72,18],"0b100":119,"0b101":119,switchtosect:86,nvptx64:8,phase3:33,plugin:[116,77,82],equal:[70,34,3,72,41,104,42,56,100,47,2,49,51,14,15,16,17,19,54,21,60,25,111,86,115,119],instanc:[73,86,62,84,104,33,5,21,1,70,48,106,75,22,90,72,34,17,76],valuelistn:30,comment:[86,25],guidelin:[17,70,27,9],vend:48,functionnam:[75,72],unreferenc:[67,72],gc_transit:74,defini:71,isnul:70,llvm_cmake_dir:62,type_info:111,autovector:0,component_1:28,component_0:28,createmul:17,assert:[86,62,89],untyp:76,determinist:[85,22,17,86,42],multi:[59,21,70,26],plain:[78,109,17],defin:[62,115,42,86,88,57,3,80,60],operandtyp:54,noimplicitfloat:[72,115],func_typ:74,helper:[70,34,1,73,41,42,43,56,47,2,49,50,10,15,16,17,18,19,20,54,21,106,22],almost:[24,66,61,75,86,70,27,51,80,4,17],irreduc:[32,54],maystor:6,isreturn:[6,119],in32bitmod:86,sub
stanti:[70,42,75,50,13,72],prose:70,unneed:[16,47],llvm_enable_zlib:62,japanes:24,label_branch_weight:3,"__cxxframehandler3":111,whenev:[70,42,5,21,101,10,71,90,72,116,28,67,17,45],promoteop:66,codepath:88,infer:[86,104,55,74,94,70,11,79,51,80,82,67],backtrac:[86,41],denot:[24,86,75,94,115,72],valueopt:21,dealloc:[75,72,17],default_branch_weight:3,sm_30:86,image_scn_align_32byt:112,sm_35:86,center:41,neural:35,nevertheless:72,getopcod:[17,54],builder:24,col:41,dfpregsregisterclass:54,setp:8,choos:[86,71,72,116,45,49,50,13,14,17,18,19,20,54,75,21,106,78,80,82,62,84,63,27,56,117,67],usual:[70,34,35,38,72,40,41,104,42,5,10,12,17,54,105,75,76,21,77,66,106,78,23,24,61,62,84,85,31,86,87,88,65,27,115,67,109,92,26,119],unari:[45,30],tarjan:78,getgloballist:17,listconcat:[30,119],numberexprast:[41,43,56,47,2,49,50],p18:8,settabl:67,tough:[56,19],cortex:[9,36,58],gendfapacket:86,adt:24,tight:[92,51],add_cfg_simplif:[13,14,15,16],onward:62,uwtabl:[72,106],add:[93,70,1,97,5,66,99,42,116,100,101
,51,85,75,21,77,23,62,25,111,86,88,27,115],cleanup:27,voila:26,citizen:17,dced:17,adl:56,successor:[70,111,86,46,72,60,51],match:[85,88,115],apple_typ:106,hypersparc:54,fnscopemap:41,pcre2posix:26,image_file_net_run_from_swap:112,punctuat:[30,70,72],realiz:[13,15,2,66],llvalu:[13,14,15,16,20],coldcc:[74,72,115],insert:[85,88,80,42],like:[62,42,86,88,89,3,115,85],studi:[51,52],sstream:70,registeranalysisgroup:42,inferenc:86,c1x:72,soft:[82,106],crawler:75,unreach:[68,111,7],vec01:72,convei:[75,111,27,72,51],registermcobjectstream:86,"_m4enum":72,proper:[68,70,104,54,17,31,1,88,72],getparamtyp:17,release_1:24,tmp:[62,105,75,72,86,47,50,10,81,13,16,5,52,17],nvcc:86,llvmrock:70,esp:[86,5,6],nvcl:8,nonempti:72,"__internal_accurate_powf":8,esi:[76,86,6],trap:[51,105],notail:72,intregsregisterclass:54,dce:[116,21,66],noisi:[32,27,17],host:[70,62,86,89,11,82],although:[70,74,1,37,72,66,2,10,17,20,104,55,75,76,21,78,24,86,88,27,115,28,67,109],geometr:[40,12],simpler:[32,66,86,47,2,106,15,16,
72],about:[70,1,38,5,66,99,42,101,11,27,21,114,59,60,62,110,111,86,88,89,113,79,115],actual:[93,32,86,33,34,35,1,70,104,4,72,73,40,41,99,42,43,5,45,100,47,2,49,10,12,51,74,13,14,15,16,17,18,19,20,54,105,75,56,21,106,78,117,80,24,61,85,26,94,27,52,115,111,28,67,119],endcod:70,discard:[72,21,86,23,24],addendum:39,vocabulari:72,guard:[70,72,22,23,51,67,17],been:[32,86,111,102,33,34,1,96,70,38,4,101,72,6,73,40,41,99,8,43,5,100,47,2,49,50,11,12,51,74,13,14,15,17,19,20,54,105,75,56,21,77,66,106,78,80,24,84,85,31,94,88,89,27,90,52,116,67,109,30,119],ifexpr:[41,47,2,49,14,15,16],leverag:[75,17],rcx:[86,6],eh_fram:111,naveen:32,rcn:33,getelementptrinst:17,"__cxxthrowexcept":111,biggest:[86,48],calltwo:17,macinfo:72,functionlisttyp:17,unexpect:[70,34,35,47,37,27,16],f4rc:86,bur:61,brand:78,machinefunctionpass:54,bui:36,bug:[70,25,116,86,85,5],wise:72,mcpu:[54,25,8,31,9,36,10,79,82],wish:[24,66,63,62,54,105,34,21,1,89,51,74,67,119,72,17],srcarglist:72,rc1:33,rc2:33,emitjumptableinfo:54,instead
:[62,42,86,88,115,85],pin:72,hashfunctiontyp:106,dure:[93,33,34,35,96,3,71,72,66,10,51,74,17,75,21,106,60,24,111,31,86,89,27,90,92,26],pic:[63,54,86,9,106,82],int64_t:[94,17],llvm_append_vc_rev:62,guidanc:[70,51],detail:[62,42,86,88,89,85,60],virtual:42,dw_apple_property_strong:106,out:[115,42,57,89,88,80,85],apple_objc:106,gcc:[70,108,116,21,86,88,89,113,97,111],pi8:57,escap:[24,42,30,5,2,10,75,92,111,15,72,29],ksdbginfo:41,al_aliasset:54,kw3:26,afterbb:[41,47,2,49],kw2:26,predsens:71,"_zfoov":72,unshadow:[41,47,2,49,14,15,16],twoaddressinstructionpass:86,eliminateframeindex:54,distnam:67,liveout:[74,90],n2756:70,poorli:[70,60],bpf_arsh:86,getreginfo:86,undef:[111,5,88],patcher:90,isvi:54,spec:[30,94,17,35,63,106,96,10,76,72,119],add_incom:[14,15],concret:[21,86,115,96],under:[70,74,1,72,6,68,40,8,116,100,48,10,12,51,19,53,54,21,78,117,24,62,84,111,86,89,65,27,56,28,67],runhelp:70,testabl:84,playground:[45,18],everi:[115,42,86,88,89,3,80,85,60],risk:[72,36,96],f934:54,rise:70,risc:
[86,88,54],implicit:[111,70,86,5],upstream:[24,11,51],printfunctionpass:32,llvm_yaml_strong_typedef:94,mygc:75,isv9:54,llvmparsebitcodeincontext:31,isdefinit:[72,106],x86_64:[86,36,89,51,81,5],properti:[68,70,115,42,21,86,80],x86call:119,xxxinstrinfo:[71,54],naiv:32,nail:[14,49],xf8:26,xor32rr:[76,86],llvm_yaml_is_document_list_vector:94,xf7:26,hide:70,introspect:[74,29,92,72,58],foundfoo:70,hi16:86,conduct:27,asymmetri:[93,34],functiontyp:[41,43,47,2,49,50,17],studio:[24,70,23,62],path:[93,32,70,9,35,1,36,97,37,72,99,8,116,100,47,10,11,107,51,74,16,17,52,103,55,75,78,79,81,82,24,62,111,26,42,88,89,65,67,118,31],dlopen:[78,67],forum:[39,72],parallel_dir:[67,52],mypassopt:78,anymor:[78,31,17],llvmremovemoduleprovid:31,pointcount:75,precis:[24,104,42,75,86,88,79,82],portabl:[86,62],nontempl:21,bitset2:57,bitset3:57,distalwai:67,insertion_block:[14,15,16],strai:10,printf:[68,24,41,85,106,100,47,2,49,50,65,37,92,15,16,72],dllvm_enable_backtrac:24,ymin:[15,2],smallsetvector:17,describ:[6
8,93,66,86,115,99,25,55,111,21,1,79,69,27,23,80,70,5,60],would:[93,86,37,70,38,5,68,42,72,100,11,51,104,105,75,76,21,117,79,80,60,24,61,111,63,88,65,27,115,28,67],gcstrategi:75,addincom:[41,47,2,49],llvm_doxygen_qhp_cust_filter_nam:62,autogen:26,musl:26,n1720:70,must:25,shoot:[13,50],join:[78,72,17,82],getnumoperand:17,"0x4db504":26,image_file_machine_mipsfpu:112,runfunct:[17,101],norm:[67,30,119],localrecov:111,"__data":72,int_of_float:[15,16],virtreg2indexfunctor:86,inadvis:105,registerehfram:73,attract:[75,27],norecurs:72,makellvm:24,uselistord:72,straightforward:[104,54,43,106,100,47,2,49,50,78,12,80,13,14,15,16,17,20],stride:31,pipefail:1,compiler_rt:27,concis:[86,21,27,70,105],hasnam:17,env:33,frameless:86,ancestor:[72,104],collaps:72,dialect:[29,72],memorydependencyanalysi:88,createfil:41,badli:51,getnextnod:31,getreservedreg:54,attrspellinglistindex:22,parallel:[24,61,62,0,26,1,89,64,117,67,86,72,52],bootstrap:24,r_arm_thm_movw_abs_nc:9,parserclass:21,includedir:[67,103],env
iron:[86,62,75,21,1,88,89,97,70,23,100],reloc:[82,59,86],enter:[24,86,62,84,85,1,106,89,50,51,115,111,13,56,72,19],exclus:[74,21,86,88,57,72],hasexternallinkag:17,composit:[72,17],wavefront_sgpr_count:25,over:[86,85,115,80,42],commasepar:21,imul:86,blatent:[16,47],optional_dir:[67,52],str_offset:106,rfunc:7,parseparenexpr:[41,43,56,47,2,49,50],align32bit:115,qeaa:111,baseinstrinfo:22,image_sym_type_dword:112,tramp:72,surpris:[40,72,31,12,34,17],replaceinstwithinst:17,getorinsertfunct:17,llvmbitread:52,comprehens:[24,32],llvmbc:115,settruncstoreact:54,cfgsimplifi:17,getlazyresolverfunct:54,echo:[24,109,67],const_global_iter:17,"0x60500020":112,cmake_cxx_flags_releas:24,alex:68,exampletest:1,modrefresult:42,each:[63,34,1,96,97,70,71,5,73,66,99,8,72,100,51,86,85,68,103,104,105,75,21,77,57,79,80,58,82,59,114,60,24,61,62,110,111,26,42,88,89,113,64,27,115,28,67,92],use_begin:[70,17],sk_lastsquar:104,prohibit:[92,88],abbrevwidth:115,setsubprogram:41,runtest:[33,9],tag_pointer_typ:106,goe:[
41,62,86,54,8,75,17,26,63,47,106,94,111,51,88,67,29,16,72,100],llvm_optimized_tablegen:24,newli:[32,41,43,74,2,49,50,65,13,14,15,17,20],laid:[13,72,86,17,80],adjust:[100,48,113,51],has_disassembl:28,got:[24,21,86],unimagin:74,debug_pubnam:106,precaut:17,threadidx:[11,8],free:[70,74,96,40,108,42,43,45,47,2,49,50,10,12,51,13,17,18,20,75,78,61,84,31,86,88,67],getfilenam:[41,106],rangelist:30,galina:117,precompil:8,distract:27,puzzl:63,astdump:22,r9d:6,r9b:6,openssl:26,filter:62,addrspac:[74,111,72,8],rais:[32,75,72,85,111,13,14,15,16,17,18,19,20],runtimedyldimpl:73,r9w:6,app:[64,70,17],onto:[24,75,34,86,106,96,27,72,17],rang:[70,25,42,21,86,79,85,60],xnorrr:54,wordsiz:75,rank:32,restrict:[86,21,27,70,88],datastructur:17,alreadi:[94,34,48,70,104,72,6,66,41,86,42,43,45,100,47,2,49,50,10,74,13,14,15,16,17,18,52,20,54,75,21,106,78,24,62,31,63,87,27,90,109,26],hackabl:[45,18],createcfgsimplificationpass:[41,47,2,49,50],consecut:[30,0,5,26,106,57,78,80,72],primari:[72,39,41,42,43,56,45,47,2,
49,50,13,14,15,16,17,18,19,20,75,111,86,27],rewritten:86,top:[86,62,55,1,42,70,115,82,5],seq_cst:[72,88],downsid:17,tok:[41,72],ton:[45,18],too:[93,86,34,36,37,70,4,72,40,41,56,47,10,12,16,85,19,21,78,24,17,26,94,65,27,67,119],tom:94,toc:86,corpus:26,initialize_native_target:[13,14,15,16],createalloca:[41,47],tool:[115,42],usesmetadata:75,took:[13,14,15,16,20],targetgroup:28,localtarget:67,conserv:[70,42,75,74,88,96,78,92,90,72,60],dw_tag_gnu_template_template_param:72,expr:[7,41,56,47,2,49,118,13,14,15,16,19,20],zero:[70,95,1,97,38,5,68,7,98,116,46,103,55,21,77,57,79,80,82,110,86,114,115,118],misunderstood:100,fashion:[72,66,23,54,24],ran:[78,97],ram:117,dw_tag_string_typ:106,lbd:53,further:[24,70,62,115,105,75,5,26,111,89,96,37,27,51,72,34,67,17],unreloc:74,rax:[54,74,86,90,76,72,6],adc32mi:6,unresolv:[67,40,1,12],thorough:70,sk_somewhatspecialsquar:104,xfail:[10,35,1],expr0lh:68,thoroughli:[14,31,49],adc32mr:6,atom_count0:106,though:[32,70,34,35,72,66,41,43,56,47,49,10,51,13,16,1
7,19,20,104,105,75,21,106,78,60,111,31,86,88,92],visitfab:66,glob:7,"__apple_typ":106,bss:82,sethi:54,bsd:[24,114,27,99,67],"0x00000002":106,"0x00000003":106,"0x00000000":106,"0x00000004":106,v8p0f64:72,"0x00000009":106,metal:[31,72],roots_begin:75,getorcreatefoo:17,abbrev:[91,115],declar:[66,86,104,8,34,21,42,48,5,57,70,89,115,28,67,72,100],radix:[86,70],pred_begin:17,shouldexpandatomicstoreinir:88,saga:[14,49],"0x70b298":78,random:[116,70,1,85,69],radiu:104,smallvectorhead:17,popq:[74,90],radic:86,dfapacket:86,lit_config:1,absolut:[97,70,5,60],package_str:62,bitcoderead:66,createreassociatepass:[47,2,49,50],cxx_fast_tl:72,nextprec:[41,43,56,47,2,49,50],multiclassid:30,getreg:[86,54],llvm_yaml_is_sequence_vector:94,label0:72,twiddl:[47,2,49,50,13,14,15,16,72],watch:[27,70],image_scn_type_no_pad:112,pointertyp:17,report:[79,1,85,42,38],reconstruct:[105,106,99],rl247420:26,sparclet:54,aliasanalysisdebugg:42,start_val:[14,15,16],sunit:86,isoper:[41,47,2],basicblock:[24,70],stringwithc
str:106,lto_module_is_object_file_for_target:92,habit:[32,70],nuw:[72,51],adttest:62,storesdnod:54,richer:90,nul:[15,17,2],num:[75,74,72,54],libsampl:52,corrupt:[111,40,12,26,99],dumpattr:22,hopefulli:[32,70,42,21,88,115],databas:[40,94,12],image_file_machine_mips16:112,valb:8,tolmach94:75,mul:[5,105],approach:[70,104,105,72,21,86,80,111,71,85],weak:[17,47,88,92,51,115,34,114,16,72],protect:[70,54,26,86,88,115,4,72],critedge1:8,fault:[116,27,80,111],lgkmcnt:25,r7xx:108,"4gib":23,mybarflag:94,lto_module_cr:92,kwd:[13,14,15,16,18,19,20],callseq_end:74,canlosslesslybitcastto:34,max_int_bit:17,trust:[27,70],nake:[72,115],nonsens:[16,47,109],getglobalcontext:[41,43,47,2,49,50,17],accumul:[32,0,26,13,14,15,16,19,20],fnloc:41,oldbind:[16,47,41],quickli:[70,99,42,111,21,86,85],getsymbolt:17,"0x000003bd":106,msec:0,xxx:[35,70,5,54],uncommon:111,kw1:26,expected_v:72,testcaselength:17,craft:17,"catch":[21,27,101],upcast:104,image_sym_class_undefined_stat:112,simplevalu:30,basic_p:119,basic_r:1
19,lesser:80,weren:27,curvar:[16,47,41],cumemalloc:8,binoprh:[41,43,56,47,2,49,50,13,14,15,16,19,20],cdecl:72,p_reg:86,image_sym_type_mo:112,svr4:99,vk_argument:70,exterior:74,registermypass:78,tediou:94,list_property_nam:28,suggest:[78,24,70,84,42,72,102,9,64,27,51,74,17,6,52],armasmprint:22,ilp32:[40,12],disposit:27,dooneiter:85,complet:[32,94,34,1,69,96,97,37,70,4,72,73,39,41,86,8,43,116,45,47,2,49,50,10,74,13,14,15,16,18,19,20,54,75,21,77,106,78,91,60,61,62,111,31,42,27,115,56,67,92,119],asan_opt:26,sched:[82,86,54],darwin9:5,xyzzi:70,binaryexprast:[41,43,56,47,2,49,50],build_ret:[13,14,15,16,20],"0x08":106,introductori:39,property_nam:28,redefin:[119,43,47,2,15,16,20],sethiddenflag:21,image_scn_mem_not_pag:112,bugzilla:[39,33,74,26,96,10,27],shortli:41,memarg:48,everyth:[36,96,37,72,39,8,43,56,45,2,49,10,14,15,18,19,20,105,21,78,24,86,88,89,65,67],spencer:4,addend:[31,72],makevehicl:70,setcurrentdebugloc:41,finalizememori:73,"0x01":[68,6,106],meta:[75,17,31,86,106,90,72,6],numl
iveout:90,shorthand:119,"0x03":90,expos:[32,86,24,75,17,21,1,70,42,85,88,92,74,72],interfer:[111,51,105],patchpoint:72,elf:[59,86,108,115],"0x7fffffffe018":101,els:86,at_artifici:106,explanatori:[35,27],elt:72,gave:34,xnor:54,setloadxact:54,disableencod:6,x0abar:26,howtosubmitabug:24,"______________________":17,thumb2:[86,72,58],rip:[10,76,72,6],thumb1:72,gr64:86,end_:[14,15,16],apart:[62,17,80,42],unindex:54,arbitrari:[70,74,1,72,40,42,43,56,45,105,47,50,12,13,16,17,18,19,20,54,55,75,21,106,78,111,86,27,90,115,28,119],loadlal:72,contradict:27,build_add:[13,14,15,16,20],unstabl:[33,36],entry_block:16,hung:17,ifexprast:[14,41,47,2,49],scopelin:[41,72,106],llvm_use_sanit:62,excerpt:8,"000000e":[43,47,49,50,13,14,16,20],enumcas:94,indirect:[86,23,100],successfulli:[42,0,74,63,9,2,96,111,117,91,15],live_end:75,"0x401000":81,icc:[24,106,0],attrparsedattrimpl:22,guaranteedtailcallopt:72,armv7:[24,72,36,80,96],armv6:36,armv8:[108,6],registerclass:[86,22,6,54],icu:26,core:[24,66,62,42,111,2
6,9,36,117,27,28,108,72],clase:17,tour:[56,19],subtmp:[41,43,47,2,49,50,13,14,15,16,20],cast210:72,"0x2":[90,86,17],meyer:70,chapter:[34,45,39],min_int_bit:17,canreserveresourc:86,surround:[32,105,5,88,90,72,6],unfortun:[40,70,34,48,49,50,78,12,13,14,17],distinct:[32,115,105,42,43,5,86,106,10,72,111,28,67,17,20],g_inlined_into_f:81,algo:78,bitsetcas:94,produc:[32,94,111,0,34,1,70,38,4,72,68,41,86,43,5,46,9,48,49,50,12,47,13,14,16,17,100,20,54,105,75,79,77,106,78,22,80,99,24,62,74,85,26,63,88,89,65,27,116,28,67,29,31],addpsrr:119,ppa:24,instcombin:85,regist:[80,42],encod:[80,25],othervt:54,parse_bin_rh:[13,14,15,16,19,20],functionproto:[41,47,2,49,50],createfmul:[41,43,47,2,49,50],objectso:67,storag:[86,115],addpsrm:119,git:[27,62],frustrat:31,closur:[28,40,12],why:[27,70,42],stuck:[40,12],"0x7":86,gid:99,image_sym_type_enum:112,"_build":89,synthesis:26,head:[24,70,75,30,109,72,119],medium:82,heal:93,unconvinc:26,modulepass:[42,8],p0i32:5,add_definit:62,heap:42,icmp:[93,115],n2541:70
,counsel:27,attr:[22,72,106,115],lsan:26,pugixml:26,fundament:[111,21,86,70],autoconf:[24,62,54,31,100,36,89,96,17],loadregfromstackslot:[86,54],adorn:[109,72],uncoop:75,trig:54,eieio:72,"_ztv3bar":5,add64mi32:6,adjac:[72,17,30],bore:78,readonli:[32,74,106,90,51,115,72],tirefactori:70,instrprof_:72,add_execut:62,when:[115,88,80,42],tid:8,tie:72,node:[42,86,57,3,38,60],v_mul_i32_i24_e64:25,uint8:[93,90],consid:[68,93,70,115,25,42,116,21,86,101,114,80,111,60,100],idx3:105,cooper:[75,65],idx1:[72,105],idx0:72,uniformli:70,"0x0f":90,libcuda:8,faster:[24,70,99,34,26,36,106,11,85,111,117,67,72,17],bullet:[100,104],freebench:35,seciton:23,backward:[21,115],impli:[54,42,75,30,86,111,89,27,90,72,67,81,4,105,17],focus:[86,54,75,74,46,10,17],catagor:32,movabsq:[90,87],signific:[66,70,115,42,74,17,26,45,2,49,78,75,27,92,31,80,34,15,72,18],computation:61,llc:[116,86,89,85,69,5],mips64el:89,n32:[31,72],lld:[107,24,31,70,62],addregisterclass:[86,54],readabl:[86,88],getorcreatetypearrai:41,pop_back
:[21,41,17],sourc:[85,42],t1item:34,feasibl:[72,9],cool:[41,43,21,47,2,49,50,78,13,14,15,16,20],cuctxcreat:8,curop:54,"__cdecl":72,level:[88,42],link_modul:31,quick:[85,42],release_26:24,release_27:24,release_24:24,release_25:24,"__builtin_longjmp":111,release_23:24,release_20:24,release_21:24,release_28:24,release_29:24,hsa:25,magnif:[15,45,2,18],endcond:[41,16,47,2,49],port:[24,40,100,0,31,86,12,117,4],llvmlib:[67,52],repli:27,"64bit":[33,72],exitcond:72,alphajitinfo:54,eckel:17,u32:[86,8],llvmld:67,negeightkind:72,declare_funct:[13,14,15,16,20],fmax:72,memory_order_relax:[72,88],testsut:67,rl247405:26,fmag:99,dw_tag_restrict_typ:[72,106],preorder:104,createbasicaliasanalysispass:[41,50],writethunk:34,switchsect:[75,86],strtod:[41,43,56,21,47,2,49,50,45],r6xx:108,add_librari:62,overriden:72,dorit:0,weird:86,automaton:[86,22],machine_version_minor:25,semant:[111,86,70,88,100],inlinedat:[72,5],builder_at:16,globallayoutbuild:57,tweak:[64,24,21,104,50],visibl:[70,99,21,86,88,115],mem
ori:25,camlp4of:[13,14,15,16,19,20],pred:[8,72,47,49,111,14,16,17],preg:[26,86],pref:[72,17],todai:[74,70,90,88,105],handler:[93,111,31,86,88,72],upheld:74,instalia:86,diflagvector:72,msg:72,andw:5,prev:17,msb:86,reorder:[72,88,5,106,74],newptr:72,plug:[43,20],capit:[27,70],drown:35,prototyp:[7,70,72,66,51],build_br:[14,15,16],registerinfo:[76,86],function_typ:[13,14,15,16,20],purpos:[32,70,33,34,4,72,6,41,8,43,51,74,17,105,21,102,78,22,80,24,111,31,86,89,27,67],explor:[17,84],preemptibl:32,sidelength:104,parse_binary_preced:[15,16],backslash:26,add8rr:86,critic:[70,42,75,96,51,82],gettyp:[70,17],alwai:[68,7,27,115,99,25,42,111,21,1,70,3,51,80,38,86,5,100],differenti:[28,4,23,84,67],localescap:111,stepval:[41,47,2,49],twoargfp:119,anyon:[27,106,54,88],fourth:[54,21,78,90,14,72],cstptr:72,"__nv_isinff":8,no_switch:0,double_typ:[13,14,15,16,20],clone:[24,56,26,1,47,78,65,22,16,17],mcdisassembl:86,"4th":86,geforc:8,testresult:39,colfield:71,practic:[93,70,21,100,88,27],firstlett:101,ca
lltmp6:[16,47],predic:[88,80],the_fpm:[13,14,15,16],programmat:[75,94,113,8],destmodul:67,postrapseudo:76,combin:[85,62,115],practis:60,image_file_machine_amd64:112,sphinx_execut:62,blocker:33,ymmv:70,size_t:[75,26,94,92],mainli:[34,11,22,72,52],canari:72,fsanit:26,foo_dtor:48,gte:72,branch_weight:[3,60],passag:70,pinsrd:5,platform:[88,89],gtu:8,getsymboladdress:51,ymm0:90,debug_abbrev:91,maskedbitsetcas:94,flagspointi:94,inoperandlist:[6,54],term:[32,70,74,4,72,39,42,100,10,34,75,76,106,80,61,84,111,86,88,27,90,30,119],name:[62,25,57,89,3,115],getoperatornam:[41,47,2],realist:[75,56,19,119],varexprast:[41,47],the_execution_engin:[13,14,15,16],individu:[24,66,70,115,99,85,26,1,97,37,27,51,80,38,28,72],otherspecialsquar:104,const0:115,getdoubleti:[41,43,47,2,49,50],hacker:[39,27],mnan:31,profit:[93,32,86,51,0],decimalinteg:30,profil:[97,3,89,69],sctx:26,roundp:0,iscxxclass:106,factori:[32,70,17],aliase:[34,72,115],numberofcpucor:26,"\u03c6":72,migrat:[75,31,27,89],write_escap:78,inte
gertyp:17,theori:[34,40,94,12],getvalueid:34,"_r0h":111,boehm:75,synchron:[92,26,72,88],refus:[24,7,62,110,32,95,77,98],codegen:25,turn:[85,86,62,88,80],place:[32,86,0,33,34,1,70,72,6,68,40,99,43,56,45,47,2,50,10,12,51,74,13,15,16,17,18,52,20,54,105,75,76,21,66,106,78,117,80,82,24,25,85,31,94,89,65,27,90,111,28,67,119],ture:[13,56,19,50],imposs:[40,54,42,88,27,12,80],str1:119,origin:[24,41,99,105,55,74,72,86,106,89,57,97,27,102,67,4,111,5,6,17],suspend:75,redhat:64,dw_apple_property_copi:106,arrai:[99,42,86,11,80,115],bou_fals:21,rodata:54,readattribut:22,predefin:[78,86,15,1,2],unrecogn:21,"0x00003550":106,given:[32,86,74,1,97,37,70,38,104,4,72,73,66,99,42,43,56,46,2,50,51,15,17,100,19,20,54,55,21,77,106,57,78,22,81,60,24,62,111,26,94,88,113,65,90,115,28,67,30,119],frameindex:54,image_sym_class_external_def:112,associ:[32,70,74,3,4,72,73,99,56,50,34,17,19,68,54,75,21,79,23,80,58,60,61,111,86,90,115,28,119],reli:[70,105,0,33,17,26,86,47,106,10,75,27,92,51,80,74,67,16,72,60,100],asso
rt:41,necessarili:[24,41,105,33,74,100,106,70,82,72],circl:104,white:108,cope:[21,17],copi:[85,86,62,115,42],dblty:41,image_scn_mem_execut:112,enclos:[70,5,10,90,115,81,17,119],pragma:11,grunt:21,releasei:33,serv:[39,105,32,17,1,106,10,90,80,111,67,30],wide:[36,88,72,39,40,8,49,50,12,13,14,17,105,75,106,24,31,86,42,115,67,30,119],image_sym_type_doubl:112,subexpress:[61,42,56,47,2,49,50,78,13,14,15,16,19],getoperationnam:66,posix:[114,62,99],balanc:[27,88],posit:[82,86,5,115],ebp:[111,86,6],xxxgenasmwrit:54,p20:8,pre:[24,66,61,63,96,27,82,86],pro:80,thiscal:31,isfunct:106,subroutin:[75,72],doiniti:54,bitwis:86,llvm_create_xcode_toolchain:62,techniqu:[0,34,72,42,56,45,47,2,49,50,13,14,15,16,85,18,19,54,75,78,17,86],ebx:[86,23,6],moreov:[32,86,72],codegen_proto:[13,14,15,16,20],instrprof:72,sure:[86,0,33,9,36,96,97,70,4,6,40,41,42,43,56,100,47,2,49,50,10,12,51,102,16,17,20,104,21,66,106,78,80,24,62,84,26,63,88,64,65,27,117,67],multipli:[32,66,61,17,86,113,11,72,60],"__asan_memcpi":26,c
learer:70,fca:61,nproc:24,llvm_build_llvm_dylib:[24,62],gunzip:[24,37],fco:54,bb0_30:8,later:[32,70,34,35,97,72,73,41,43,5,47,2,49,50,10,51,74,13,14,15,16,17,19,20,68,54,106,78,24,62,111,26,86,90,52,56,67,109,31],quantiti:72,mybison:35,runtim:[68,3,21,86,89,101,97,11,27,108,85],readjust:86,"0x90":74,xxxasmprint:54,cs2:[72,42],cmakelist:[24,62,55],apple_namespac:106,build_cal:[13,14,15,16,20],uncondit:[32,54,74,86,49,97,14,15,16,72],cheap:[70,17,88],permiss:[73,24,27,99,117],culinkst:8,"__global__":11,explicitli:[32,70,0,74,35,5,73,40,42,43,72,100,48,12,51,17,20,105,75,76,21,24,62,84,86,89,119],lua:75,derivedtyp:[66,17],state:[93,70,42,75,76,21,86,88,89,96,27,80,111,67,72,26],sk_circl:104,analyz:[86,69],abs_fp32:6,analys:[32,66,77,39,17,42,106,78,24,86,72,60],llvm_scalar_opt:[13,14,15,16],mcsectionmacho:86,yaxxz:111,jazz:52,ssp:[72,106,115],allocat:[86,72,54],bpf_xor:86,dyn:59,tailor:36,image_comdat_select_largest:72,use_llvm_executionengin:[13,14,15,16],sse:[86,72,54,58],regtyp:54,d
w_tag_packed_typ:106,reveal:105,"0x00002023":106,dramat:[24,70,21,50,79,13,72],intrins:88,irrespect:62,fastcc:[86,72,100,115],bison:35,scott:70,backedg:[32,74,2,49,14,15,60],drawback:[21,27,17],n16:8,pane:84,noth:[78,32,105,45,75,72,31,86,47,10,67,4,16,17,18],ilist_iter:31,maximum:[62,42,17,21,86,60,38,34,72,26],labori:17,mov32rm:76,detect:[46,62,25,5,26,1,34,72],mov32ri:[76,86],review:70,get_register_match:22,cxx_fast_tlscc:[72,115],image_scn_cnt_uninitialized_data:112,abs_f:6,cycl:[92,72,111],isatleastacquir:88,collect2:65,come:[86,34,97,70,71,72,40,99,8,43,116,45,47,48,49,50,10,11,12,13,14,16,17,18,52,20,105,75,66,106,78,24,62,26,94,27,115,119],latch:72,at_apple_runtime_class:106,region:[97,115],quiet:[67,21,1,72,101],contract:51,nocaptur:[32,72,115],entir:[32,63,0,74,35,1,97,70,38,72,40,99,8,43,100,50,10,12,51,13,86,17,20,54,105,75,21,106,78,80,24,42,94,27,115,28,67],image_scn_mem_purg:112,imgrel:23,image_file_machine_powerpcfp:112,nnn:99,color:[97,86,17],rescan:34,inspir:[32,72
],period:[75,85,26,10,27,72],pop:[41,75,72,86,47,49,115,14,16,17],hblcnsviw:21,image_file_machine_sh4:112,image_file_machine_sh5:112,colon:[62,94,10,28,5,119],image_file_machine_sh3:112,dw_form_ref4:106,poll:[75,74],coupl:[40,41,84,17,2,49,88,78,27,12,51,14,15,72,92,119],pend:[24,41,101,43,56,47,2,49,50,13,14,15,16,19,20],test_source_root:1,sectionnumb:112,debug_str:106,hexinteg:30,savesomewher:70,variableexprast:[41,43,56,47,2,49,50],mytype1:94,andrew:75,mytype2:94,mrmdestmem:54,instrssrr:119,intertwin:61,"case":[70,62,115,42,85,86,88,89,57,3,80,5],addimm:86,push_back:[41,54,43,56,94,47,2,49,50,70,17],stackgrowsdown:54,registerwithsubreg:54,dw_apple_property_weak:106,cast:[21,70,80],tblgen:[86,62,69],dcmake_c_flag:36,anytim:100,emittrailingf:88,isextern:106,clutter:27,image_file_up_system_onli:112,rangepiec:30,d14:54,d15:54,addedcomplex:6,value_desc:21,d10:54,d11:54,d12:[57,54],d13:54,alphabet:67,ubsan:26,trip:[32,26,70,72,80],html:[24,66,70,62,33,116,35,9,89,96,22],intreg:[71,54],
eventu:[32,104,72,35,48,49,111,74,14,5],llvmlibthin:107,hasadsizeprefix:6,week:27,image_sym_class_label:112,nest:[1,42,75,111,86,70,115],confidenti:27,driver:[108,8,45,10,97,11,92,26,52],director:27,devoid:86,viewgraph:17,moder:[70,17,84],supporttest:62,justifi:[92,99],iterat:17,"__main":78,model:[86,111,21,1,88,70,23,115,82,100],unimpl:78,tip:[27,85],"0x000003f3":106,redwin:86,kill:[78,116,86,85,76],xxxbranchselector:54,dynamic_cast:[47,70,41,17,104],blow:26,miscellan:99,widest:27,hint:[70,105,72,51,81,85],except:[62,115,25,42,86,88,80],cxx:[24,33,100,9,89,65,67],blob:[33,115],notori:4,disrupt:[109,72],cudadevicereset:11,image_sym_dtype_point:112,predrel:71,subtargetfeatur:[6,54],createbr:[41,47,2,49],image_sym_class_union_tag:112,"0x000003ff":86,saniti:[28,24,51,67],whitespac:[24,41,43,30,45,47,2,49,50,27,70,56,13,14,15,16,5,18,19,20],image_scn_align_256byt:112,tend:[93,24,70,105,33,46,106,27,28,17],evergreen:108,at_apple_property_attribut:106,gridsizei:8,slice:[30,17,119],easili:
[78,24,63,32,75,34,21,55,9,106,94,10,70,90,51,74,28,4,86,17],benefici:0,legal:[88,89],gridsizex:8,encodecompactunwindregisterswithoutfram:86,gridsizez:8,derferenc:17,freea:48,libfil:103,freed:[87,17,42],ffi_include_dir:62,llvm_doxygen_svg:62,garbag:[100,115],inspect:[86,72,51,115,105],boolordefault:21,bpf_mul:86,oneargfprw:119,immut:[78,72,17,58],execv:4,mergabl:32,cmptmp:[41,43,47,2,49,50,13,14,15,16,20],stanc:70,cuda:86,image_scn_align_16byt:112,onon:72,routin:[32,86,75,34,1,27,111,72],llvmsetdisasmopt:29,dw_at_nam:106,tbcc:54,lastli:[10,78,41,58],overrod:119,idx2:105,cpu_powerpc:94,possbil:94,unconvent:[40,12],classess:54,fcc_g:54,getbuff:94,strict:[43,34,106,5,51,80,102,28,17,6,20],v_mul_i32_i24:25,mm4:[6,119],tracksregl:76,subtargethook:31,strictli:[24,8,43,5,67,106,49,111,72,14,4,74,17],blocklen_32:115,machin:[62,89,80],fcc_u:54,"__llvm_coverage_map":68,mm6:[6,119],tupl:72,regard:[39,70,100,48,96,22,72],ocaml_lib:[13,14,15,16,20],mm0:[86,6,119],setjmp_buf:111,mm3:[6,119],getda
ta:70,longer:[109,32,70,99,113,75,17,31,86,47,50,78,27,51,58,16,72,100,52],cmakecach:62,nmake:62,parsetoplevelexpr:[41,43,56,47,2,49,50],handletoplevelexpress:[41,43,56,47,2,49,50],make_uniqu:[41,43,56,47,2,49,50],dstindex:54,x86_stdcall:86,primarli:76,clrq:86,clrw:86,cbe:63,frighten:26,strongli:[40,61,75,9,47,49,70,12,51,14,16,119],clrb:86,intro:[39,16,47,108],cbw:86,umax:72,encompass:[36,58],rearrang:61,intra:42,tok_eof:[41,43,56,45,47,2,49,50],clrl:86,incorrect:3,call2:5,idiom:[43,21,17,20],"0xabcdef00":74,symbol:[70,99,42,86,57,89,107,69,115,38,82],briefli:[68,34,78],mrmsrcreg:54,lexicalblock:41,llvmcreatedisasm:29,serious:37,buildmi:86,llvm_include_exampl:62,callq:[74,87,90],directori:[103,86,62,1,70,89,97,11,27,118],invest:66,calle:[86,100,80],potenti:[32,70,74,1,96,72,42,56,45,100,49,51,14,85,18,19,21,24,111,26,86,27,90],degrad:75,"__sync_":88,"0xl":72,metatada:3,all:[70,1,69,97,3,38,5,7,99,42,116,46,101,85,103,21,77,66,79,23,80,81,59,114,62,25,111,86,88,89,113,27,115,91,118]
,replacealluseswith:[34,61,17],dist:89,fp_to_sint:54,lack:[105,75,72,86,64,11,102,13,30,6,119],scalar:[61,75,21,86,11,70,51,28,72],basicblockutil:17,pty:72,ptx:[86,108],follow:[93,70,1,69,97,38,5,68,66,98,99,42,116,100,101,11,51,85,75,21,107,114,23,80,62,25,111,86,88,89,27,115],spcc:54,ptr:[93,70,57],uint8_t:[26,94],doe:[70,1,97,5,66,98,99,42,46,101,11,85,21,114,23,62,111,86,88,89,27,115],getaddressingmod:54,init:[24,21],program:[25,42,57,89,115,85],neglig:[93,26],deepcheck:17,lsbit:17,far:[40,42,43,72,21,47,2,106,78,12,56,66,28,15,16,17,19,20],urem:[66,86],getbasicblock:86,novel:[75,72,17],worst:[17,40,12,87,74],toolbuildpath:67,failur:[94,33,35,1,36,96,37,5,72,10,85,18,19,106,78,24,17,26,63,89,27,116],unoffici:105,mips64r6:31,experimental_dir:67,mips64r2:31,basicaliasanalysi:[78,32,41,42],lisp:[75,40,12],sectionnam:115,list:[62,25,42,86,88,89,3,115,85],lli:[116,79,69],snapshot:42,ten:105,use_llvm_analysi:[13,14,15,16,20],eas:36,still_poison:72,tex:35,rate:[27,99,115,38],pressur:[8
6,70,0],design:[88,115,42],storageclass:112,llvm_ani:66,hasard:75,proxi:86,what:[115,88,60,80,42],namedindex:54,handler0:72,handler1:72,handler2:72,sun:[10,78],sum:[0,17,97,115,72,60],brief:[24,70,62,42,75,34,21,63],tailcallopt:[86,72],asmprint:[75,86,22,54],test_single_input:26,intersect:70,llvmgetbitcodemodul:31,row:71,themselv:[86,17,21,1,106,27,56,115,34,28,67,72,6,19],behaviour:[21,70,80],xmm3:[6,119],shouldn:[73,70,42,21,9,18,67,72,45],jitcompilerfn:54,xmm6:[6,119],committ:27,xmm4:[6,119],xmm5:[6,119],build_config:37,xmm8:6,xmm9:6,asmpars:[24,66,22],misinterpret:[70,85],slave:117,instrsdrm:119,bb2:[72,115],llvm_profdata_fil:62,xmm2:[6,119],magnitud:72,"0x0000006e":106,filenam:[70,95,38,5,6,68,7,41,98,116,44,103,21,77,106,79,72,91,82,59,62,110,113,114,67,118,119],heurist:[32,16,72,86,47],avx:[10,72,0],sparcasmprint:[86,54],dump_modul:[13,14,15,16,20],hexadecim:[21,114],proceed:[75,24,86],normalizedpolar:94,coverag:69,qch:62,forcefulli:105,llvmtargetmachin:54,at_apple_property_s
ett:106,cxa_demangl:106,isload:86,"80x86":117,eptr:72,flag:[103,70,62,86,89,97,81,5],stick:[70,17,36],"0x00000067":106,known:[32,70,33,74,96,37,72,8,116,51,17,52,104,105,75,24,111,31,86,87,42,89,115],ensu:54,valuabl:[35,27],"_e64":25,watchpoint:31,outliv:[32,26,72],caveat:41,relocationtyp:54,dmpqrtx:99,image_scn_align_8192byt:112,ppc64:86,reevalu:30,pong:34,bjarn:17,invokeinst:17,cours:[40,62,42,34,21,45,66,78,12,26,56,67,17,18,19],goal:[68,86,27,70,111],divid:[32,66,72,35,86,10,11,38,4,5,60],rather:[32,70,33,74,1,36,37,72,41,42,43,56,100,10,51,17,19,54,105,75,106,60,24,86,27,115,30],anxiou:62,hash_map:17,divis:[15,86,72,2],value_align:72,targetasminfo:[75,54],goat:70,resourc:21,algebra:[32,72],ranlib:[24,67,65],reflect:[24,42,72,96,27,92],okai:[41,84,105,43,56,47,2,49,50,61,70,14,13,4,15,16,72,19,20],ptxstring:8,"short":[94,74,1,37,70,72,68,41,8,100,47,2,49,14,15,16,54,80,81,24,86,42,27,90,118],ani:[70,95,1,36,96,97,37,38,71,72,68,66,99,42,5,46,51,85,100,103,105,75,21,77,57,79,23,8
0,58,114,60,24,61,62,25,111,86,88,89,113,27,115,116,28],unhid:21,tsan:31,ambigu:[104,56,21,2,10,15,30,19],caus:[32,63,0,86,1,5,97,70,38,4,72,73,66,41,99,8,43,116,46,47,2,49,10,107,16,17,100,19,75,21,77,57,78,80,82,24,85,31,42,88,94,65,27,52,56,67],callback:[54,42,75,86,90,17],prepass:86,fslp:0,headlight:70,reachabl:[75,62,61,72,74],s_load_dwordx2:25,geomean:0,next_var:[14,15,16],dso_path:79,typedef:[70,94,17],exyno:31,d31:72,harmless:32,anachronist:115,retti:115,might:[86,34,70,96,37,3,4,72,40,99,42,104,5,100,9,49,12,51,74,14,15,16,17,52,54,75,21,102,106,22,24,61,62,84,85,31,94,88,27,28,67,29,109,26],alter:[17,21,100,78,67,72],wouldn:[70,16,47,41],"return":[115,42,86,88,89,57,3,80,85],no_instal:67,var_nam:[14,15,16],framework:[32,66,47,86,39,43,72,35,42,45,2,106,78,75,15,16,17,18,20],preheaderbb:[2,49],somebodi:27,bigger:[94,70],strr:54,complexpattern:[86,54],sourcebas:39,blockdim:8,"__dwarf":106,refresh:92,const_float:[13,14,15,16,20],difficult:[41,42,17,21,70,2,88,27,92,111,15,109
,72],truncat:[72,54,119],compriz:38,dcmake_cxx_compil:26,"2x3x4":72,stkmaprecord:[74,90],compute_20:8,linkag:[24,46,86,51,115,81],regmapping_f:86,asmparsernum:118,expect:[115,88,60,80,42],atom_count:106,constindex:90,resulttyp:72,foolproof:78,ccifinreg:54,lineno:41,image_file_line_nums_strip:112,benjamin:75,isempti:17,uncommit:24,compilecommonopt:67,guess:[62,50],teach:[43,66,45,18,20],flagflat:94,thrown:[93,111,72],targetinfo:[27,54],putchar:[41,47,2,49,50,13,14,15,16],thread:[1,62,42,75,111,86,88,101,115],vararg:[43,17,86,115,72,20],toolnam:[67,52],runtimedyldelf:73,machineframeinfo:86,ccifnotvararg:54,circuit:[15,2],precal:75,libclc:27,feed:[14,106,49,42],notifi:[27,96,42,0],peculiar:30,feel:[40,70,42,43,85,31,45,27,12,51,72,18,20],cuda_success:8,add16mi8:6,isunpredicatedtermin:54,summaris:80,cond_val:[14,15,16],construct:[115,88,89,42],stdlib:24,blank:[40,70,99,84,56,45,27,12,109,18,19],slower:[70,75,34,86,11,51,111,17,100],fanci:35,my_jit_tool:67,superpos:17,script:[62,55,116,2
1,1,89,27],interact:[73,32,62,84,75,85,21,86,88,111,72],gpg:24,stori:[68,24,37],gpu:[39,108,54,25,8,11,22,72],gpr:[29,86,72,119],luckili:75,option:[80,25,42,89,115,85],iftru:72,syncthread:8,wswitch:70,st_gid:99,cmake_c_flag:62,mcasmpars:86,secondcondit:17,dsym:81,albeit:[16,47],kind:[32,70,34,3,38,72,6,68,66,41,99,100,47,2,15,16,17,104,75,76,21,106,22,58,79,61,111,26,86,88,27,90,28,67,109,92],assert_valid_funct:[13,14,15,16,20],doubli:[87,17],artifact_prefix:26,setgraphattr:17,remot:[73,24],immutablepass:42,pictur:[43,34,105,20],get_subtarget_feature_nam:22,empty_subregsset:54,dinkumwar:17,cleaner:[21,70,17],body_v:16,nnan:72,ysvn:96,astwrit:22,dedic:[86,54],entireti:74,"0b000100":54,check:[70,86,62,88,89],violat:[70,105,75,49,27,14,72],intregsclass:54,faultingload:93,paramidx1:115,paramidx0:115,exec:[116,26],unsur:30,english:[24,70],reach:[93,32,70,54,75,34,31,90,111,28,72],flagsround:94,disttarbz2:67,shouldexpandatomicloadinir:88,image_rel_amd64_addr32nb:23,cmakefil:24,amaz:[15,2]
,dw_tag_enumeration_typ:[72,106],xmm7:[6,119],blockid:115,destruct:[90,40,12,48],libopag:64,sandybridg:0,arg_empti:17,rtl:86,getcol:41,intti:72,optimizationlevel:21,inapplic:36,brtarget:54,penalti:[72,17],dw_apple_property_retain:106,bfd:65,create_add:20,image_file_large_address_awar:112,hash_funct:106,stackoffset:75,shlibext:[10,67],address_s:8,blockscalartrait:94,pushfq:86,"0x0001023":106,hit:[70,60],invoke:72,aliasopt:21,spurious:10,mydoclist:94,mydoclisttyp:94,fastest:117,sizabl:17,stdcall:[31,86,72],sextload:[6,54],him:34,exactmatch:72,llvmdummi:54,sk_otherspecialsquar:104,getvaluetyp:54,getpointertonamedfunct:73,"0x1234":106,use_empti:17,sk_buff:86,stump:54,dump:[41,115,113,43,85,26,94,47,2,49,50,78,106,22,91,38,13,14,86,17,20],cleverli:80,shared_librari:[67,52],proactiv:[27,85],mutabl:[45,72,2,49],arc:[97,84],dumb:[40,12],arg:[70,34,1,97,101,72,41,43,116,45,47,2,49,50,74,13,14,15,16,18,19,20,21,82,26,63,113,56,30],disadvantag:[92,21,17,58],icc_:54,unqualifi:[56,86],arm:88,pro
perty_valu:28,setupmachinefunct:54,inconveni:[16,47,100],inst_end:17,old_valu:16,maprequir:94,pubtyp:106,condv:[41,47,2,49],extensioan:33,syntact:[13,72,5,50],unabbrev:115,sole:[27,17],aspir:[15,2],setbid:115,succeed:[78,1,72,60],outfil:44,solv:[40,105,42,86,47,2,106,27,12,96,15,16],setindexedloadact:54,v128:[72,8],isdopcod:[66,86],interprocedur:[92,72,42],portablecl:31,blissfulli:21,isomorph:100,available_extern:[31,72,115],context:[70,34,72,6,8,100,10,51,17,104,105,21,78,22,61,84,111,42,88,117,29,30,119],mthi:31,subclassref:30,internallinkag:17,tgt:118,getsrc:24,die_offset_bas:106,sweep:75,lbar:86,arbitrarili:[104,14,72,106,49],mistak:[70,51],java:[93,32,40,75,72,88,12,17],due:[30,61,86,24,33,5,31,42,70,36,101,75,11,3,92,51,34,111,74,72,63],whom:34,stdint:26,brick:34,whoa:[13,50],strategi:[21,86],thunk:[32,86,72,34],dw_tag_imported_modul:72,flight:[111,72],append_block:[13,14,15,16,20],llvm_map_components_to_librari:62,demand:[24,16,47,86,115],instructor:54,asmmatcheremitt:22,echo
cmd:67,eatomtypedietag:106,frozen:101,batch:37,dagtodagisel:66,abov:[93,32,94,33,34,35,70,71,56,72,6,73,40,41,86,42,43,5,45,100,9,2,49,50,10,12,51,47,13,14,15,16,17,18,19,20,54,104,75,76,21,66,106,78,80,81,105,60,99,24,62,74,26,63,87,90,52,115,116,29,109,92,119],intendend:72,cmp32ri:86,int32:90,runonfunct:[85,17,54,42],image_file_machine_am33:112,"0x0000000000dc8872":101,x8b:112,rid:34,illinoi:[27,70],mioperandinfo:54,dw_lang_c:41,minim:[68,70,99,25,105,92,26,86,106,88,90,82,57,72,52],getnumel:17,dominatortreebas:17,higher:[86,27,3,42],x83:112,x87:72,x86:[62,88,89,57],wherea:[17,86,11,51,80,111,72],robust:[10,29],wherev:[70,41,17],obit:72,lower:[66,70,42,111,86,88,89,51,80,118,100],n2429:70,machineri:[35,104],discourag:[4,21,17,67],find_packag:62,"try":[86,55,116,21,42,70,88,27,80,85],searchabl:67,cudamemcpyhosttodevic:11,chees:70,propos:[34,27,51,60],rewound:111,stripwarnmsg:67,targets_to_build:[9,54],succ_end:17,bpf_call:86,parse_var_init:16,xxxisellow:54,circumv:21,exposit:[45,18
],getbinarycodeforinstr:54,lmalloc:21,filename1:68,lcudart_stat:11,finder:39,view_function_cfg_onli:14,complaint:[40,12],erasefrompar:[41,54,43,47,2,49,50,17],int32x4_t:80,v64:[72,8],ispoint:34,mypassnam:17,v60:31,preexist:32,awaken:111,image_sym_class_bit_field:112,fbb:54,selp:8,llvm_yaml_is_flow_sequence_vector:94,short_wchar:72,xmm10:6,xmm11:6,xmm12:6,xmm13:6,xmm14:6,hatsiz:94,cst_code_wide_integ:115,global:[70,1,38,5,68,7,99,42,46,101,51,100,105,75,21,57,114,24,111,86,88,115],understood:[70,86,12],litter:27,unspecifi:[25,8,74,35,86,72],consciou:24,llvmgettypekind:66,isaddresstaken:76,condition_vari:24,multmp:[41,43,47,2,49,50,13,14,15,16,20],dataflowsanit:26,image_scn_mem_read:112,prof:[3,60],patchset:24,proc:[24,36,54],rotl:66,n3206:70,setdatalayout:[41,47,2,49,50],assignvirt2stackslot:86,runtimedyld:73,lose:[78,40,12,106],mustquot:94,lhs_val:[13,14,15,16,20],llvmgetbitcodemoduleincontext:31,ispointertyp:70,"_unwind_resum":111,testfunc:[13,50],arg_begin:[47,17],image_file_machi
ne_wcemipsv2:112,registerasmprint:54,getdatalayout:[75,41,47,54],threadid:8,tok_then:[41,47,2,49],plethora:[24,100,17],branchfold:54,prec:[41,15,16,47,2],operandmap:54,question:[27,70,42],"long":[86,33,74,1,70,97,3,38,104,4,72,40,108,99,42,43,116,100,50,10,12,51,17,20,54,105,75,106,78,23,24,84,85,31,94,89,27,111,67],lldb:[70,31,106,101,27,28],"__cxa_call_unexpect":111,files:44,lto_codegen_set_pic_model:92,of_channel:[13,14,15,16,19,20],gcca:98,"0x7fffe3e864f0":26,delta:63,consist:[57,86,88,115,42],caller:[32,100,54,75,34,31,86,87,2,49,85,78,80,111,14,15,72,20],cmpnumber:34,parsedefinit:[41,43,56,47,2,49,50],mflop:0,arm64:[24,89],tdrr:82,highlight:[68,24,41,86,22,51,109,17],worklist:[32,17,34],tooldir:67,alu32_rr:71,icc_val:54,createdatalayout:[41,47,2,49,50],phieliminationid:86,cover:86,o32:31,numconst:90,simm13:54,cciftyp:54,bpf_neg:86,sdvalu:[86,54],remove_if:17,registerdescriptor:54,maybeoverridden:34,ecosystem:[28,17],at_decl_fil:106,storeregtostackslot:[86,54],parseprimari:[41,
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,108,17,76],unnecessari:70,underli:105,right:[100,17],old:100,global_ctor:[100,72],interv:[32,86],argpromot:[32,42],type_code_fp128:115,intern:[32,21,70,67],indirect:72,global_dtor:72,functioncompar:34,subclass:[17,54],optparserdef:22,condit:32,core:17,replacedirectcal:34,memdep:32,tablegen:[83,86,22,102,30,6,119],promot:[32,54],emitt:54,chapter:[41,43,56,47,2,49,50,13,14,15,16,19,20],slightli:17,trophi:26,localescap:72,canonic:[32,72],commit:[27,84],looppass:78,instcombin:[32,100],"float":[72,23,82],encod:[68,86,115],bound:105,storag:[72,21,17],git:[24,26],wai:[17,105],support:[70,54,74,26,86,50,11,3,90,13,67,72,100],transform:[32,42],type_code_half:115,"class":[30,70,104,54,42,17,21,86,78,71,72,119],avail:[75,42],width:[70,72,51,115],memorydependenceanalysi:42,sitofp:72,analysi:[32,105,42,0,86,78,30],form:[32,86],raw_ostream:70,modulepass:78,dead:32,heap:[75,17],icmp:72,profdata:113,inttoptr:[72,105],type_code_ppc_fp128:115,fundament:[66,83],sampl:[71,68],emit:[75,97],featur:[64,7
0,0,75,26,86,10],request:84,"abstract":[75,56,51,115,4,72,19],diagnost:0,exist:[78,16,47,100,42],nvvmreflect:8,trip:0,bswap:72,assembl:[98,25,54,75,86,23,80,72],floor:72,when:[26,70,85,51,100],test:[24,100,62,33,116,26,1,96,10,27,76,72,35],node:[32,66,72],stackrestor:72,intend:48,smallset:17,cmpgep:34,consid:51,pseudo:68,time:[65,70,41,92,63],offsetof:[40,12],hsa_code_object_vers:25,concept:[68,67,78,6],nearbyint:72,chain:[24,37,17,42],ptrtoint:[72,105],global:[32,0,34,106,76,72],lli:82,llc:79,middl:100,depend:[64,32,23,42],graph:[32,17],readabl:[67,70],uadd:72,sourc:[68,24,41,62,31,100,106,89,70,81,52],string:[68,72,17],administr:96,level:[68,32,70,30,21,86,106,80,76,4,72,100],did:100,die:32,iter:[17,0],item:24,quick:[68,78,62,75,21,89,10],round:72,paramattr_code_entri:115,sign:[115,84],scev:[32,42],sopp:25,funclet:[111,72],defici:[6,102],deriv:[74,66,17],gener:[32,86,35,1,72,73,99,43,44,100,49,14,85,20,75,76,23,82,17,63,111,67,118,119],globalsmodref:[32,42],modif:3,address:[73,105
,86,81,8,72],along:34,monoton:88,nondebug:32,safepoint:74,basiccg:32,overrid:[67,42],semant:[8,74,90,51,4,72],maxnum:72,extra:[10,105],modul:[32,7,70,17,78,76,67,72],prefer:[70,51],cttz:72,marker:72,instal:[67,9],should:[34,100],dagisel:22,post:32,deadtypeelim:32,memori:[32,42,17,47,51,16,72],univers:100,subvers:[24,100],live:[76,86],criteria:96,scope:[72,106,119],checkout:24,share:64,enhanc:74,visual:[37,62],prototyp:32,logarithm:34,ibm:108,registerinfo:22,prepar:73,uniqu:94,can:[100,51,105],topic:[53,17,62],critic:32,fp16:72,alwai:[32,105],multipl:17,targetsubtarget:86,write:[78,70,54,42,75,21,86,10,22,105,35,52,100],legalizetyp:86,foreach:30,map:[68,93,86,54,75,17,94,90,74,71,72],remap:73,armneonsema:22,memcpi:[32,72],smallstr:17,module_code_gcnam:115,mai:[32,42,34],data:[68,32,86,8,72,26,94,113,115,4,17],stress:44,autotool:[65,89],practic:51,assici:34,ebpf:86,predic:70,inform:[32,41,108,31,70,106,10,97,27,17],"switch":[70,3,72],combin:[32,86],runonbasicblock:78,mapvector:17,call
abl:17,comdat:72,microscop:70,still:51,pointer:[42,0,74,105,72,17],dynam:[78,21,86,72,100],entiti:119,armneontest:22,group:[78,21,72],thumb:104,fastisel:22,polici:27,precondit:67,gen:8,platform:[10,108,100,62],jit:[54,86,50,13,67,101,17],cmptype:34,fuzzer:26,main:34,non:[75,32,31],synopsi:[95,1,5,97,38,44,7,98,99,116,46,103,55,77,107,79,81,82,59,110,113,114,91,118],initi:[75,70,86,17,42],half:72,now:100,introduct:[32,63,94,33,34,70,36,48,3,71,72,6,73,66,41,86,8,43,56,45,9,2,49,50,11,47,13,14,15,16,17,18,19,20,68,54,105,75,76,21,102,106,78,117,22,23,80,58,96,60,62,25,111,26,42,87,88,65,27,28,67,29,109,30,31,119],name:[32,70,54,21,86,106,72],getanalysi:78,revers:0,sequentiallyconsist:88,sjlj:111,callsit:[32,111],compil:[24,103,41,62,31,63,9,89,50,64,11,79,13,108,70,72,100],replac:[32,17],individu:[76,17],continu:70,releasememori:78,redistribut:100,operand:[74,90,72,54,76],happen:[100,105],switchinst:[32,3],catchret:72,armneon:22,space:[86,70,105,8],profil:[32,113],rational:[72,105],st
ate:34,subregist:76,clangattrvisitor:22,frequenc:60,ocaml:[75,31],motion:32,thing:[100,51],gcmetadataprint:75,frequent:[100,62],first:[72,105],oper:[99,17,47,2,51,15,16,72],directli:[82,42],rint:72,arrai:[68,23,17,72,105],stringref:17,fast:72,crit:32,open:[31,100],module_code_datalayout:115,convent:[86,54,8,100,48,72],type_block:115,fma:72,clangsacheck:22,copi:[70,48],specifi:[75,78,21,51,42],pragma:0,than:105,xcore:108,posit:21,seri:60,pre:[33,26],loweratom:32,licm:[32,42],ani:26,doiniti:78,bitcast:72,bitwis:72,engin:73,libcal:32,advic:[64,85],note:[31,86,108,36],printer:[32,54],normal:94,c99:23,insertel:72,"_global__i_a":100,cmpoper:34,runtim:[24,111,72,0],mcjit:[73,101],lexicon:61,show:[97,100,113],atom:[32,72,88],concurr:[72,88],hack:[32,9],runonscc:78,slot:32,onli:[32,17],mergefunct:34,fenc:72,end_block:115,enough:85,analyz:38,customwritebarri:75,offici:108,gep:[51,105],variou:32,get:[24,37,100,72,60],clang:[24,26,9,36,96,22],ssa:[32,86,100],targetjitinfo:86,requir:[24,105,42,7
5,21,86,10,37,78,52],intrins:[32,66,8,75,74,106,22,90,80,111,72],cmpconstant:34,where:100,summari:[24,105,89,80,38],kernel:8,gcwrite:[75,72],postdom:32,deadargelim:32,detect:32,review:[27,84],enumer:70,label:[72,70,5],clangcommenthtmltagsproperti:22,behind:106,clangattrpchread:22,volatil:72,between:[78,92,17,105],"import":17,spars:32,parent:111,sparc:108,bitset:[72,57],dimacro:72,region:[68,32,78],contract:104,audienc:54,tutori:[53,40,8,45,12,67,5,18],doesnotaccessmemori:42,frameaddress:72,acceler:106,pow:72,exploit:21,sccp:32,sentinel:17,rebuild:100,mark:8,basicaa:[32,42],fptrunc:72,type_code_funct:115,module_code_vers:115,module_code_alia:115,trick:[40,12],cast:[17,105],invok:[32,72,17,8],tblgen:118,onlyreadsmemori:42,mergefunc:32,develop:[24,27,62,69,39],author:51,same:[17,5],rgpassmanag:78,binari:[56,100,2,96,15,72,19],document:[39,70,108,34,94,96,51],immutableset:17,exhaust:32,srem:72,ssub:72,preassign:86,nest:48,driver:[43,56,19,20],sreg:8,driven:42,value_symtab_block:115,setv
ersionprint:21,extern:[32,21,31,35,53],defm:30,runonmachinefunct:78,macro:[94,17],markup:29,clobber:[86,72],without:100,model:[72,51],dereferenc:105,customreadbarri:75,execut:[62,1,17,82,8],tip:[40,12,51],s_waitcnt:25,neon:80,rest:[56,19],gdb:[78,101],smallvector:17,asmmatch:22,struct:[70,72,105],hint:[17,0],filecheck:5,except:[32,70,72,48,111],littl:70,versa:17,overview:[70,33,74,35,37,71,72,68,39,8,10,52,75,76,24,111,42,89,64,90,115,28],disubprogram:72,endcatch:111,earli:70,read:[75,34,92,54,8],amd:108,va_start:72,world:78,mod:32,intel:[79,108],integ:[72,115,105],dilexicalblockfil:72,output:[94,21,1,38,29,72,35],targetinstrinfo:[86,54],deduct:70,trampolin:72,catchpad:72,freez:100,gvn:[32,42],definit:[70,61,90,119,38],token:[111,72],legal:[86,51,54],exit:[32,70,95,1,5,97,38,44,7,98,99,116,46,103,55,77,79,81,82,59,110,113,114,91,118],refer:[30,32,75,17,21,76,28,72],garbag:[75,72,40,12,74],inspect:17,fpmath:72,clangattrimpl:22,"throw":[4,111],comparison:34,patent:27,stacklet:87,cuda:
11,faultmap:93,routin:17,clangdiagsdef:22,effici:[48,42],bpf_ab:86,terminolog:[24,60],strip:32,your:[78,24,62,117,104],compon:[28,26,86,103],log:[34,72],area:72,hex:94,nvvm:8,start:[68,24,62,75,21,86,78,10,37,72],interfac:[4,100,17,84,42],low:70,clear_cach:72,kaleidoscop:[53,40,41,43,56,45,47,2,49,50,12,13,14,15,16,18,19,20],resolut:92,addrequiredtransit:78,timelin:96,bundl:[86,72],stackmap:90,epilog:86,conclus:[56,40,12,19],notat:[24,30],tripl:[86,72,8],runonregion:78,"default":[67,94,70],embed:[76,62],loadabl:67,creat:[78,100,17,52,96],deep:109,deletevalu:42,file:[68,24,86,99,32,44,21,1,70,106,89,10,92,115,114,5,100,119],incorrect:63,collector:[75,72],multiclass:[30,119],field:34,valid:[33,94],copyright:27,you:109,architectur:[74,108,90],formed:72,registri:78,sequenc:94,symbol:[81,32,114,92],ilist_trait:17,amd_kernel_code_t:25,ilist_nod:17,reduc:32,ipsccp:32,backward:27,directori:100,type_code_float:115,smrd:25,mask:72,hello:78,calle:48,mass:60,represent:[68,100,42],all:[32,100,67
],dist:67,consider:[17,48,80],forbidden:70,scc:32,scalar:[32,94],ptx:8,follow:[34,105],ptr:[72,8],clangattrspellinglistindex:22,addescapingus:42,init:72,program:[24,39,86,82,6,52],datalayout:86,"case":[116,27],consum:106,faq:[26,100],urem:72,util:[74,24,94,55,32],candid:96,mechan:70,got:63,fab:72,strang:100,induct:[32,0],list:[70,72,39,41,108,43,56,47,2,49,50,13,14,15,16,17,19,20,21,114,31,94],managedstat:17,adjust:[47,16,72],stderr:32,zero:111,design:[73,39,105,85,86,48,92,17],pass:[93,32,62,42,34,50,78,51,74,13,17,76],further:52,enter_subblock:115,heartble:26,type_code_point:115,what:[105,75,34,26,100,78,51,85],xor:72,sub:[68,72],abi:[108,86,17,111],section:[93,90,109,23,91],ast:[14,49,19,56],abl:34,delet:[32,17],abbrevi:115,version:[101,70,100,96],subtarget:[22,54],ctpop:72,"public":[70,17,96],full:[41,43,56,47,2,49,50,13,14,15,16,72,19,20],hash:106,berkelei:86,behaviour:23,analysisusag:78,prologu:72,standard:[24,70,99,72,106,115,4,17],modifi:[21,100,72,99],valu:[30,100,105,32,34
,21,94,106,76,67,119,72,17],trunc:72,search:34,ahead:41,shufflevector:72,pick:17,via:84,primit:[115,119],transit:[74,111],instrmap:71,select:[85,21,1,72,86],aggress:32,hexadecim:23,liber:70,regist:[32,100,54,8,76,86,78,51],two:[86,105],coverag:[68,97,26],unwindless:32,va_end:72,asm:[111,86,72],metadata_block:115,minor:25,more:[70,17],flat:25,tester:1,type_code_metadata:115,statepoint:[75,74,72],flag:[0,76,21,64,72,26],known:102,minnum:72,abandon:84,def:[30,17],indirectbr:72,registr:[78,54],emiss:[86,41,23],addrspacecast:72,templat:[72,109,17,119],dicompositetyp:72,readobj:59,goal:75,anoth:17,immutablemap:17,reject:100,unswitch:32,simpl:[32,72,17,8],isn:85,replacewithnewvalu:42,resourc:108,mccontext:86,reflect:8,exceptionpoint:111,rotat:32,through:70,constants_block:115,hierarchi:[17,104],paramet:[72,8],style:[70,104,42,23,72,52],late:86,clangcommenthtmltag:22,gcov:97,systemz:108,good:26,"return":[32,70],frem:72,complain:8,module_code_sectionnam:115,diglobalvari:72,globalvalu:17,achi
ev:17,scalarevolut:32,fulli:70,subsystem:39,donoth:72,interleav:72,clangattrparsedattrimpl:22,weight:[3,60,113],branchinst:3,hard:[16,47,41],idea:[15,2],realli:100,linkag:72,expect:[3,72],sadd:72,reduct:[32,116,0],safeti:[40,12],print:[78,32,103,91,42],subsubsect:109,occurr:21,qualifi:[100,96],advanc:[68,53,26,17],base:[32,100,104,105,74,31,86],ask:100,begincatch:111,thread:[72,17,32],bitconvert:80,clangattrparsedattrkind:22,postdomtre:32,clangcommenthtmlnamedcharacterrefer:22,lifetim:[72,48,106],assign:[32,16,47],major:[27,25],number:[32,21,115],smallptrset:17,module_block:115,differ:[35,100,105,42],script:[33,100],interact:[78,17],construct:[32,86,100],statement:3,cfg:[32,3],store:[32,86,72,51,100],option:[95,1,97,38,5,7,98,99,44,10,17,103,55,21,77,79,81,82,59,24,62,110,113,114,116,91,29,118],relationship:17,selector:54,pars:[56,21,86,19],std:[70,17],i32:105,remov:32,cost:111,valuesymbolt:17,tailcallelim:32,comput:[75,105,8],packag:64,"null":[75,105],built:[75,86,3,100,94],lib:[10
7,24],check:[93,32,0,5,67,17],self:100,lit:1,also:[95,7,70,98,99,116,1,79,38,82,114],powi:72,build:[62,117,55,26,100,9,36,89,96,78,65,11,28,52],extractvalu:72,extractel:72,brace:70,coff:[112,23],cleanuppad:72,distribut:96,previou:100,machinebasicblock:86,most:32,plan:78,mach:106,cover:70,libdevic:8,exp:72,rewritestatepointsforgc:74,microsoft:[37,62],visibl:72,ctag:22,runonmodul:[78,34],gold:65,clangattrparsedattrlist:22,stackprotectorcheck:72,fine:17,find:[32,100,17,51],write_regist:72,writer:108,solut:[34,26],unus:[4,32],express:[68,32,43,5,49,56,111,14,119,72,19,20],nativ:[86,115],externalfnconst:32,diloc:72,common:[24,37,67,17,8],immutablepass:78,set:[24,104,54,42,21,78,32,17],clangattrpchwrit:22,mutabl:[16,47],see:[95,7,70,98,99,116,1,79,38,82,114],close:[43,32,20],arm:[108,31,9,36,23,80],dwarf:[91,41,106],module_code_tripl:115,vop1:25,vop3:25,vop2:25,altern:[21,92],unrol:[32,72,0],miscellan:[78,76,21,108,52],both:24,vopc:25,interprocedur:32,inalloca:48,debug_typ:17,context:94,l
et:[30,119],machinefunct:[78,86],load:[73,78,86,72,51],point:[75,72,23,90,82],schedul:[86,54],header:[68,4,70,106],alloca:[87,72,51],classof:104,functionpass:78,backend:[54,105,31,86,22,6,119],aarch64:108,diimportedent:72,strategi:[75,72],understand:100,atomicrmw:72,dequ:17,look:51,fptosi:72,passmanag:78,"while":17,unifi:32,match:[86,5],amdgpu:[108,25],error:[4,94,70,100],anonym:[32,70],loop:[32,70,0,49,78,14,72,60,119],prolog:86,subsect:109,propag:32,reg2mem:32,runonfunct:78,demot:32,bitrevers:72,illinoi:100,targetlow:86,minim:4,clangdiagsindexnam:22,decod:32,higher:100,x86:[108,31,86,23],diobjcproperti:72,optim:[32,40,77,63,106,50,65,11,12,88,13,86,92,100],va_copi:72,user:[32,25,8,39,26,94,47,2,79,15,16,17],function_block:115,specialis:72,stack:[32,40,75,74,86,87,90,23,12,72],stateless:32,travers:17,task:[17,96],entri:[32,3,90],parenthes:70,person:72,propos:106,always_inlin:32,functionattr:32,module_code_asm:115,ipconstprop:32,ldr:80,mubuf:25,waymark:17,input:[26,94,72,113],type_c
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+ <div class="section" id="kaleidoscope-tutorial-introduction-and-the-lexer">
+<h1>1. Kaleidoscope: Tutorial Introduction and the Lexer<a class="headerlink" href="#kaleidoscope-tutorial-introduction-and-the-lexer" title="Permalink to this headline">¶</a></h1>
+<div class="contents local topic" id="contents">
+<ul class="simple">
+<li><a class="reference internal" href="#tutorial-introduction" id="id1">Tutorial Introduction</a></li>
+<li><a class="reference internal" href="#the-basic-language" id="id2">The Basic Language</a></li>
+<li><a class="reference internal" href="#the-lexer" id="id3">The Lexer</a></li>
+</ul>
+</div>
+<div class="section" id="tutorial-introduction">
+<h2><a class="toc-backref" href="#id1">1.1. Tutorial Introduction</a><a class="headerlink" href="#tutorial-introduction" title="Permalink to this headline">¶</a></h2>
+<p>Welcome to the “Implementing a language with LLVM” tutorial. This
+tutorial runs through the implementation of a simple language, showing
+how fun and easy it can be. This tutorial will get you up and started as
+well as help to build a framework you can extend to other languages. The
+code in this tutorial can also be used as a playground to hack on other
+LLVM specific things.</p>
+<p>The goal of this tutorial is to progressively unveil our language,
+describing how it is built up over time. This will let us cover a fairly
+broad range of language design and LLVM-specific usage issues, showing
+and explaining the code for it all along the way, without overwhelming
+you with tons of details up front.</p>
+<p>It is useful to point out ahead of time that this tutorial is really
+about teaching compiler techniques and LLVM specifically, <em>not</em> about
+teaching modern and sane software engineering principles. In practice,
+this means that we’ll take a number of shortcuts to simplify the
+exposition. For example, the code uses global variables
+all over the place, doesn’t use nice design patterns like
+<a class="reference external" href="http://en.wikipedia.org/wiki/Visitor_pattern">visitors</a>, etc... but
+it is very simple. If you dig in and use the code as a basis for future
+projects, fixing these deficiencies shouldn’t be hard.</p>
+<p>I’ve tried to put this tutorial together in a way that makes chapters
+easy to skip over if you are already familiar with or are uninterested
+in the various pieces. The structure of the tutorial is:</p>
+<ul class="simple">
+<li><a class="reference external" href="#language">Chapter #1</a>: Introduction to the Kaleidoscope
+language, and the definition of its Lexer - This shows where we are
+going and the basic functionality that we want it to do. In order to
+make this tutorial maximally understandable and hackable, we choose
+to implement everything in C++ instead of using lexer and parser
+generators. LLVM obviously works just fine with such tools, feel free
+to use one if you prefer.</li>
+<li><a class="reference external" href="LangImpl2.html">Chapter #2</a>: Implementing a Parser and AST -
+With the lexer in place, we can talk about parsing techniques and
+basic AST construction. This tutorial describes recursive descent
+parsing and operator precedence parsing. Nothing in Chapters 1 or 2
+is LLVM-specific, the code doesn’t even link in LLVM at this point.
+:)</li>
+<li><a class="reference external" href="LangImpl3.html">Chapter #3</a>: Code generation to LLVM IR - With
+the AST ready, we can show off how easy generation of LLVM IR really
+is.</li>
+<li><a class="reference external" href="LangImpl4.html">Chapter #4</a>: Adding JIT and Optimizer Support
+- Because a lot of people are interested in using LLVM as a JIT,
+we’ll dive right into it and show you the 3 lines it takes to add JIT
+support. LLVM is also useful in many other ways, but this is one
+simple and “sexy” way to show off its power. :)</li>
+<li><a class="reference external" href="LangImpl5.html">Chapter #5</a>: Extending the Language: Control
+Flow - With the language up and running, we show how to extend it
+with control flow operations (if/then/else and a ‘for’ loop). This
+gives us a chance to talk about simple SSA construction and control
+flow.</li>
+<li><a class="reference external" href="LangImpl6.html">Chapter #6</a>: Extending the Language:
+User-defined Operators - This is a silly but fun chapter that talks
+about extending the language to let the user program define their own
+arbitrary unary and binary operators (with assignable precedence!).
+This lets us build a significant piece of the “language” as library
+routines.</li>
+<li><a class="reference external" href="LangImpl7.html">Chapter #7</a>: Extending the Language: Mutable
+Variables - This chapter talks about adding user-defined local
+variables along with an assignment operator. The interesting part
+about this is how easy and trivial it is to construct SSA form in
+LLVM: no, LLVM does <em>not</em> require your front-end to construct SSA
+form!</li>
+<li><a class="reference external" href="LangImpl8.html">Chapter #8</a>: Extending the Language: Debug
+Information - Having built a decent little programming language with
+control flow, functions and mutable variables, we consider what it
+takes to add debug information to standalone executables. This debug
+information will allow you to set breakpoints in Kaleidoscope
+functions, print out argument variables, and call functions - all
+from within the debugger!</li>
+<li><a class="reference external" href="LangImpl8.html">Chapter #9</a>: Conclusion and other useful LLVM
+tidbits - This chapter wraps up the series by talking about
+potential ways to extend the language, but also includes a bunch of
+pointers to info about “special topics” like adding garbage
+collection support, exceptions, debugging, support for “spaghetti
+stacks”, and a bunch of other tips and tricks.</li>
+</ul>
+<p>By the end of the tutorial, we’ll have written a bit less than 1000 lines
+of non-comment, non-blank, lines of code. With this small amount of
+code, we’ll have built up a very reasonable compiler for a non-trivial
+language including a hand-written lexer, parser, AST, as well as code
+generation support with a JIT compiler. While other systems may have
+interesting “hello world” tutorials, I think the breadth of this
+tutorial is a great testament to the strengths of LLVM and why you
+should consider it if you’re interested in language or compiler design.</p>
+<p>A note about this tutorial: we expect you to extend the language and
+play with it on your own. Take the code and go crazy hacking away at it,
+compilers don’t need to be scary creatures - it can be a lot of fun to
+play with languages!</p>
+</div>
+<div class="section" id="the-basic-language">
+<h2><a class="toc-backref" href="#id2">1.2. The Basic Language</a><a class="headerlink" href="#the-basic-language" title="Permalink to this headline">¶</a></h2>
+<p>This tutorial will be illustrated with a toy language that we’ll call
+“<a class="reference external" href="http://en.wikipedia.org/wiki/Kaleidoscope">Kaleidoscope</a>” (derived
+from “meaning beautiful, form, and view”). Kaleidoscope is a procedural
+language that allows you to define functions, use conditionals, math,
+etc. Over the course of the tutorial, we’ll extend Kaleidoscope to
+support the if/then/else construct, a for loop, user defined operators,
+JIT compilation with a simple command line interface, etc.</p>
+<p>Because we want to keep things simple, the only datatype in Kaleidoscope
+is a 64-bit floating point type (aka ‘double’ in C parlance). As such,
+all values are implicitly double precision and the language doesn’t
+require type declarations. This gives the language a very nice and
+simple syntax. For example, the following simple example computes
+<a class="reference external" href="http://en.wikipedia.org/wiki/Fibonacci_number">Fibonacci numbers:</a></p>
+<div class="highlight-python"><div class="highlight"><pre># Compute the x'th fibonacci number.
+def fib(x)
+ if x < 3 then
+ 1
+ else
+ fib(x-1)+fib(x-2)
+
+# This expression will compute the 40th number.
+fib(40)
+</pre></div>
+</div>
+<p>We also allow Kaleidoscope to call into standard library functions (the
+LLVM JIT makes this completely trivial). This means that you can use the
+‘extern’ keyword to define a function before you use it (this is also
+useful for mutually recursive functions). For example:</p>
+<div class="highlight-python"><div class="highlight"><pre>extern sin(arg);
+extern cos(arg);
+extern atan2(arg1 arg2);
+
+atan2(sin(.4), cos(42))
+</pre></div>
+</div>
+<p>A more interesting example is included in Chapter 6 where we write a
+little Kaleidoscope application that <a class="reference external" href="LangImpl6.html#kicking-the-tires">displays a Mandelbrot
+Set</a> at various levels of magnification.</p>
+<p>Lets dive into the implementation of this language!</p>
+</div>
+<div class="section" id="the-lexer">
+<h2><a class="toc-backref" href="#id3">1.3. The Lexer</a><a class="headerlink" href="#the-lexer" title="Permalink to this headline">¶</a></h2>
+<p>When it comes to implementing a language, the first thing needed is the
+ability to process a text file and recognize what it says. The
+traditional way to do this is to use a
+“<a class="reference external" href="http://en.wikipedia.org/wiki/Lexical_analysis">lexer</a>” (aka
+‘scanner’) to break the input up into “tokens”. Each token returned by
+the lexer includes a token code and potentially some metadata (e.g. the
+numeric value of a number). First, we define the possibilities:</p>
+<div class="highlight-c++"><div class="highlight"><pre><span class="c1">// The lexer returns tokens [0-255] if it is an unknown character, otherwise one</span>
+<span class="c1">// of these for known things.</span>
+<span class="k">enum</span> <span class="n">Token</span> <span class="p">{</span>
+ <span class="n">tok_eof</span> <span class="o">=</span> <span class="o">-</span><span class="mi">1</span><span class="p">,</span>
+
+ <span class="c1">// commands</span>
+ <span class="n">tok_def</span> <span class="o">=</span> <span class="o">-</span><span class="mi">2</span><span class="p">,</span>
+ <span class="n">tok_extern</span> <span class="o">=</span> <span class="o">-</span><span class="mi">3</span><span class="p">,</span>
+
+ <span class="c1">// primary</span>
+ <span class="n">tok_identifier</span> <span class="o">=</span> <span class="o">-</span><span class="mi">4</span><span class="p">,</span>
+ <span class="n">tok_number</span> <span class="o">=</span> <span class="o">-</span><span class="mi">5</span><span class="p">,</span>
+<span class="p">};</span>
+
+<span class="k">static</span> <span class="n">std</span><span class="o">::</span><span class="n">string</span> <span class="n">IdentifierStr</span><span class="p">;</span> <span class="c1">// Filled in if tok_identifier</span>
+<span class="k">static</span> <span class="kt">double</span> <span class="n">NumVal</span><span class="p">;</span> <span class="c1">// Filled in if tok_number</span>
+</pre></div>
+</div>
+<p>Each token returned by our lexer will either be one of the Token enum
+values or it will be an ‘unknown’ character like ‘+’, which is returned
+as its ASCII value. If the current token is an identifier, the
+<tt class="docutils literal"><span class="pre">IdentifierStr</span></tt> global variable holds the name of the identifier. If
+the current token is a numeric literal (like 1.0), <tt class="docutils literal"><span class="pre">NumVal</span></tt> holds its
+value. Note that we use global variables for simplicity, this is not the
+best choice for a real language implementation :).</p>
+<p>The actual implementation of the lexer is a single function named
+<tt class="docutils literal"><span class="pre">gettok</span></tt>. The <tt class="docutils literal"><span class="pre">gettok</span></tt> function is called to return the next token
+from standard input. Its definition starts as:</p>
+<div class="highlight-c++"><div class="highlight"><pre><span class="c1">/// gettok - Return the next token from standard input.</span>
+<span class="k">static</span> <span class="kt">int</span> <span class="nf">gettok</span><span class="p">()</span> <span class="p">{</span>
+ <span class="k">static</span> <span class="kt">int</span> <span class="n">LastChar</span> <span class="o">=</span> <span class="sc">' '</span><span class="p">;</span>
+
+ <span class="c1">// Skip any whitespace.</span>
+ <span class="k">while</span> <span class="p">(</span><span class="n">isspace</span><span class="p">(</span><span class="n">LastChar</span><span class="p">))</span>
+ <span class="n">LastChar</span> <span class="o">=</span> <span class="n">getchar</span><span class="p">();</span>
+</pre></div>
+</div>
+<p><tt class="docutils literal"><span class="pre">gettok</span></tt> works by calling the C <tt class="docutils literal"><span class="pre">getchar()</span></tt> function to read
+characters one at a time from standard input. It eats them as it
+recognizes them and stores the last character read, but not processed,
+in LastChar. The first thing that it has to do is ignore whitespace
+between tokens. This is accomplished with the loop above.</p>
+<p>The next thing <tt class="docutils literal"><span class="pre">gettok</span></tt> needs to do is recognize identifiers and
+specific keywords like “def”. Kaleidoscope does this with this simple
+loop:</p>
+<div class="highlight-c++"><div class="highlight"><pre><span class="k">if</span> <span class="p">(</span><span class="n">isalpha</span><span class="p">(</span><span class="n">LastChar</span><span class="p">))</span> <span class="p">{</span> <span class="c1">// identifier: [a-zA-Z][a-zA-Z0-9]*</span>
+ <span class="n">IdentifierStr</span> <span class="o">=</span> <span class="n">LastChar</span><span class="p">;</span>
+ <span class="k">while</span> <span class="p">(</span><span class="n">isalnum</span><span class="p">((</span><span class="n">LastChar</span> <span class="o">=</span> <span class="n">getchar</span><span class="p">())))</span>
+ <span class="n">IdentifierStr</span> <span class="o">+=</span> <span class="n">LastChar</span><span class="p">;</span>
+
+ <span class="k">if</span> <span class="p">(</span><span class="n">IdentifierStr</span> <span class="o">==</span> <span class="s">"def"</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">tok_def</span><span class="p">;</span>
+ <span class="k">if</span> <span class="p">(</span><span class="n">IdentifierStr</span> <span class="o">==</span> <span class="s">"extern"</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">tok_extern</span><span class="p">;</span>
+ <span class="k">return</span> <span class="n">tok_identifier</span><span class="p">;</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+<p>Note that this code sets the ‘<tt class="docutils literal"><span class="pre">IdentifierStr</span></tt>‘ global whenever it
+lexes an identifier. Also, since language keywords are matched by the
+same loop, we handle them here inline. Numeric values are similar:</p>
+<div class="highlight-c++"><div class="highlight"><pre><span class="k">if</span> <span class="p">(</span><span class="n">isdigit</span><span class="p">(</span><span class="n">LastChar</span><span class="p">)</span> <span class="o">||</span> <span class="n">LastChar</span> <span class="o">==</span> <span class="sc">'.'</span><span class="p">)</span> <span class="p">{</span> <span class="c1">// Number: [0-9.]+</span>
+ <span class="n">std</span><span class="o">::</span><span class="n">string</span> <span class="n">NumStr</span><span class="p">;</span>
+ <span class="k">do</span> <span class="p">{</span>
+ <span class="n">NumStr</span> <span class="o">+=</span> <span class="n">LastChar</span><span class="p">;</span>
+ <span class="n">LastChar</span> <span class="o">=</span> <span class="n">getchar</span><span class="p">();</span>
+ <span class="p">}</span> <span class="k">while</span> <span class="p">(</span><span class="n">isdigit</span><span class="p">(</span><span class="n">LastChar</span><span class="p">)</span> <span class="o">||</span> <span class="n">LastChar</span> <span class="o">==</span> <span class="sc">'.'</span><span class="p">);</span>
+
+ <span class="n">NumVal</span> <span class="o">=</span> <span class="n">strtod</span><span class="p">(</span><span class="n">NumStr</span><span class="p">.</span><span class="n">c_str</span><span class="p">(),</span> <span class="mi">0</span><span class="p">);</span>
+ <span class="k">return</span> <span class="n">tok_number</span><span class="p">;</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+<p>This is all pretty straight-forward code for processing input. When
+reading a numeric value from input, we use the C <tt class="docutils literal"><span class="pre">strtod</span></tt> function to
+convert it to a numeric value that we store in <tt class="docutils literal"><span class="pre">NumVal</span></tt>. Note that
+this isn’t doing sufficient error checking: it will incorrectly read
+“1.23.45.67” and handle it as if you typed in “1.23”. Feel free to
+extend it :). Next we handle comments:</p>
+<div class="highlight-c++"><div class="highlight"><pre><span class="k">if</span> <span class="p">(</span><span class="n">LastChar</span> <span class="o">==</span> <span class="sc">'#'</span><span class="p">)</span> <span class="p">{</span>
+ <span class="c1">// Comment until end of line.</span>
+ <span class="k">do</span>
+ <span class="n">LastChar</span> <span class="o">=</span> <span class="n">getchar</span><span class="p">();</span>
+ <span class="k">while</span> <span class="p">(</span><span class="n">LastChar</span> <span class="o">!=</span> <span class="n">EOF</span> <span class="o">&&</span> <span class="n">LastChar</span> <span class="o">!=</span> <span class="sc">'\n'</span> <span class="o">&&</span> <span class="n">LastChar</span> <span class="o">!=</span> <span class="sc">'\r'</span><span class="p">);</span>
+
+ <span class="k">if</span> <span class="p">(</span><span class="n">LastChar</span> <span class="o">!=</span> <span class="n">EOF</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">gettok</span><span class="p">();</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+<p>We handle comments by skipping to the end of the line and then return
+the next token. Finally, if the input doesn’t match one of the above
+cases, it is either an operator character like ‘+’ or the end of the
+file. These are handled with this code:</p>
+<div class="highlight-c++"><div class="highlight"><pre> <span class="c1">// Check for end of file. Don't eat the EOF.</span>
+ <span class="k">if</span> <span class="p">(</span><span class="n">LastChar</span> <span class="o">==</span> <span class="n">EOF</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">tok_eof</span><span class="p">;</span>
+
+ <span class="c1">// Otherwise, just return the character as its ascii value.</span>
+ <span class="kt">int</span> <span class="n">ThisChar</span> <span class="o">=</span> <span class="n">LastChar</span><span class="p">;</span>
+ <span class="n">LastChar</span> <span class="o">=</span> <span class="n">getchar</span><span class="p">();</span>
+ <span class="k">return</span> <span class="n">ThisChar</span><span class="p">;</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+<p>With this, we have the complete lexer for the basic Kaleidoscope
+language (the <a class="reference external" href="LangImpl2.html#full-code-listing">full code listing</a> for the Lexer
+is available in the <a class="reference external" href="LangImpl2.html">next chapter</a> of the tutorial).
+Next we’ll <a class="reference external" href="LangImpl2.html">build a simple parser that uses this to build an Abstract
+Syntax Tree</a>. When we have that, we’ll include a
+driver so that you can use the lexer and parser together.</p>
+<p><a class="reference external" href="LangImpl2.html">Next: Implementing a Parser and AST</a></p>
+</div>
+</div>
+
+
+ </div>
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+
+ <div class="section" id="kaleidoscope-implementing-a-parser-and-ast">
+<h1>2. Kaleidoscope: Implementing a Parser and AST<a class="headerlink" href="#kaleidoscope-implementing-a-parser-and-ast" title="Permalink to this headline">¶</a></h1>
+<div class="contents local topic" id="contents">
+<ul class="simple">
+<li><a class="reference internal" href="#chapter-2-introduction" id="id2">Chapter 2 Introduction</a></li>
+<li><a class="reference internal" href="#the-abstract-syntax-tree-ast" id="id3">The Abstract Syntax Tree (AST)</a></li>
+<li><a class="reference internal" href="#parser-basics" id="id4">Parser Basics</a></li>
+<li><a class="reference internal" href="#basic-expression-parsing" id="id5">Basic Expression Parsing</a></li>
+<li><a class="reference internal" href="#binary-expression-parsing" id="id6">Binary Expression Parsing</a></li>
+<li><a class="reference internal" href="#parsing-the-rest" id="id7">Parsing the Rest</a></li>
+<li><a class="reference internal" href="#the-driver" id="id8">The Driver</a></li>
+<li><a class="reference internal" href="#conclusions" id="id9">Conclusions</a></li>
+<li><a class="reference internal" href="#full-code-listing" id="id10">Full Code Listing</a></li>
+</ul>
+</div>
+<div class="section" id="chapter-2-introduction">
+<h2><a class="toc-backref" href="#id2">2.1. Chapter 2 Introduction</a><a class="headerlink" href="#chapter-2-introduction" title="Permalink to this headline">¶</a></h2>
+<p>Welcome to Chapter 2 of the “<a class="reference external" href="index.html">Implementing a language with
+LLVM</a>” tutorial. This chapter shows you how to use the
+lexer, built in <a class="reference external" href="LangImpl1.html">Chapter 1</a>, to build a full
+<a class="reference external" href="http://en.wikipedia.org/wiki/Parsing">parser</a> for our Kaleidoscope
+language. Once we have a parser, we’ll define and build an <a class="reference external" href="http://en.wikipedia.org/wiki/Abstract_syntax_tree">Abstract
+Syntax Tree</a> (AST).</p>
+<p>The parser we will build uses a combination of <a class="reference external" href="http://en.wikipedia.org/wiki/Recursive_descent_parser">Recursive Descent
+Parsing</a> and
+<a class="reference external" href="http://en.wikipedia.org/wiki/Operator-precedence_parser">Operator-Precedence
+Parsing</a> to
+parse the Kaleidoscope language (the latter for binary expressions and
+the former for everything else). Before we get to parsing though, lets
+talk about the output of the parser: the Abstract Syntax Tree.</p>
+</div>
+<div class="section" id="the-abstract-syntax-tree-ast">
+<h2><a class="toc-backref" href="#id3">2.2. The Abstract Syntax Tree (AST)</a><a class="headerlink" href="#the-abstract-syntax-tree-ast" title="Permalink to this headline">¶</a></h2>
+<p>The AST for a program captures its behavior in such a way that it is
+easy for later stages of the compiler (e.g. code generation) to
+interpret. We basically want one object for each construct in the
+language, and the AST should closely model the language. In
+Kaleidoscope, we have expressions, a prototype, and a function object.
+We’ll start with expressions first:</p>
+<div class="highlight-c++"><div class="highlight"><pre><span class="c1">/// ExprAST - Base class for all expression nodes.</span>
+<span class="k">class</span> <span class="nc">ExprAST</span> <span class="p">{</span>
+<span class="nl">public:</span>
+ <span class="k">virtual</span> <span class="o">~</span><span class="n">ExprAST</span><span class="p">()</span> <span class="p">{}</span>
+<span class="p">};</span>
+
+<span class="c1">/// NumberExprAST - Expression class for numeric literals like "1.0".</span>
+<span class="k">class</span> <span class="nc">NumberExprAST</span> <span class="o">:</span> <span class="k">public</span> <span class="n">ExprAST</span> <span class="p">{</span>
+ <span class="kt">double</span> <span class="n">Val</span><span class="p">;</span>
+
+<span class="nl">public:</span>
+ <span class="n">NumberExprAST</span><span class="p">(</span><span class="kt">double</span> <span class="n">Val</span><span class="p">)</span> <span class="o">:</span> <span class="n">Val</span><span class="p">(</span><span class="n">Val</span><span class="p">)</span> <span class="p">{}</span>
+<span class="p">};</span>
+</pre></div>
+</div>
+<p>The code above shows the definition of the base ExprAST class and one
+subclass which we use for numeric literals. The important thing to note
+about this code is that the NumberExprAST class captures the numeric
+value of the literal as an instance variable. This allows later phases
+of the compiler to know what the stored numeric value is.</p>
+<p>Right now we only create the AST, so there are no useful accessor
+methods on them. It would be very easy to add a virtual method to pretty
+print the code, for example. Here are the other expression AST node
+definitions that we’ll use in the basic form of the Kaleidoscope
+language:</p>
+<div class="highlight-c++"><div class="highlight"><pre><span class="c1">/// VariableExprAST - Expression class for referencing a variable, like "a".</span>
+<span class="k">class</span> <span class="nc">VariableExprAST</span> <span class="o">:</span> <span class="k">public</span> <span class="n">ExprAST</span> <span class="p">{</span>
+ <span class="n">std</span><span class="o">::</span><span class="n">string</span> <span class="n">Name</span><span class="p">;</span>
+
+<span class="nl">public:</span>
+ <span class="n">VariableExprAST</span><span class="p">(</span><span class="k">const</span> <span class="n">std</span><span class="o">::</span><span class="n">string</span> <span class="o">&</span><span class="n">Name</span><span class="p">)</span> <span class="o">:</span> <span class="n">Name</span><span class="p">(</span><span class="n">Name</span><span class="p">)</span> <span class="p">{}</span>
+<span class="p">};</span>
+
+<span class="c1">/// BinaryExprAST - Expression class for a binary operator.</span>
+<span class="k">class</span> <span class="nc">BinaryExprAST</span> <span class="o">:</span> <span class="k">public</span> <span class="n">ExprAST</span> <span class="p">{</span>
+ <span class="kt">char</span> <span class="n">Op</span><span class="p">;</span>
+ <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">ExprAST</span><span class="o">></span> <span class="n">LHS</span><span class="p">,</span> <span class="n">RHS</span><span class="p">;</span>
+
+<span class="nl">public:</span>
+ <span class="n">BinaryExprAST</span><span class="p">(</span><span class="kt">char</span> <span class="n">op</span><span class="p">,</span> <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">ExprAST</span><span class="o">></span> <span class="n">LHS</span><span class="p">,</span>
+ <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">ExprAST</span><span class="o">></span> <span class="n">RHS</span><span class="p">)</span>
+ <span class="o">:</span> <span class="n">Op</span><span class="p">(</span><span class="n">op</span><span class="p">),</span> <span class="n">LHS</span><span class="p">(</span><span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">LHS</span><span class="p">)),</span> <span class="n">RHS</span><span class="p">(</span><span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">RHS</span><span class="p">))</span> <span class="p">{}</span>
+<span class="p">};</span>
+
+<span class="c1">/// CallExprAST - Expression class for function calls.</span>
+<span class="k">class</span> <span class="nc">CallExprAST</span> <span class="o">:</span> <span class="k">public</span> <span class="n">ExprAST</span> <span class="p">{</span>
+ <span class="n">std</span><span class="o">::</span><span class="n">string</span> <span class="n">Callee</span><span class="p">;</span>
+ <span class="n">std</span><span class="o">::</span><span class="n">vector</span><span class="o"><</span><span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">ExprAST</span><span class="o">>></span> <span class="n">Args</span><span class="p">;</span>
+
+<span class="nl">public:</span>
+ <span class="n">CallExprAST</span><span class="p">(</span><span class="k">const</span> <span class="n">std</span><span class="o">::</span><span class="n">string</span> <span class="o">&</span><span class="n">Callee</span><span class="p">,</span>
+ <span class="n">std</span><span class="o">::</span><span class="n">vector</span><span class="o"><</span><span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">ExprAST</span><span class="o">>></span> <span class="n">Args</span><span class="p">)</span>
+ <span class="o">:</span> <span class="n">Callee</span><span class="p">(</span><span class="n">Callee</span><span class="p">),</span> <span class="n">Args</span><span class="p">(</span><span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">Args</span><span class="p">))</span> <span class="p">{}</span>
+<span class="p">};</span>
+</pre></div>
+</div>
+<p>This is all (intentionally) rather straight-forward: variables capture
+the variable name, binary operators capture their opcode (e.g. ‘+’), and
+calls capture a function name as well as a list of any argument
+expressions. One thing that is nice about our AST is that it captures
+the language features without talking about the syntax of the language.
+Note that there is no discussion about precedence of binary operators,
+lexical structure, etc.</p>
+<p>For our basic language, these are all of the expression nodes we’ll
+define. Because it doesn’t have conditional control flow, it isn’t
+Turing-complete; we’ll fix that in a later installment. The two things
+we need next are a way to talk about the interface to a function, and a
+way to talk about functions themselves:</p>
+<div class="highlight-c++"><div class="highlight"><pre><span class="c1">/// PrototypeAST - This class represents the "prototype" for a function,</span>
+<span class="c1">/// which captures its name, and its argument names (thus implicitly the number</span>
+<span class="c1">/// of arguments the function takes).</span>
+<span class="k">class</span> <span class="nc">PrototypeAST</span> <span class="p">{</span>
+ <span class="n">std</span><span class="o">::</span><span class="n">string</span> <span class="n">Name</span><span class="p">;</span>
+ <span class="n">std</span><span class="o">::</span><span class="n">vector</span><span class="o"><</span><span class="n">std</span><span class="o">::</span><span class="n">string</span><span class="o">></span> <span class="n">Args</span><span class="p">;</span>
+
+<span class="nl">public:</span>
+ <span class="n">PrototypeAST</span><span class="p">(</span><span class="k">const</span> <span class="n">std</span><span class="o">::</span><span class="n">string</span> <span class="o">&</span><span class="n">name</span><span class="p">,</span> <span class="n">std</span><span class="o">::</span><span class="n">vector</span><span class="o"><</span><span class="n">std</span><span class="o">::</span><span class="n">string</span><span class="o">></span> <span class="n">Args</span><span class="p">)</span>
+ <span class="o">:</span> <span class="n">Name</span><span class="p">(</span><span class="n">name</span><span class="p">),</span> <span class="n">Args</span><span class="p">(</span><span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">Args</span><span class="p">))</span> <span class="p">{}</span>
+<span class="p">};</span>
+
+<span class="c1">/// FunctionAST - This class represents a function definition itself.</span>
+<span class="k">class</span> <span class="nc">FunctionAST</span> <span class="p">{</span>
+ <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">PrototypeAST</span><span class="o">></span> <span class="n">Proto</span><span class="p">;</span>
+ <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">ExprAST</span><span class="o">></span> <span class="n">Body</span><span class="p">;</span>
+
+<span class="nl">public:</span>
+ <span class="n">FunctionAST</span><span class="p">(</span><span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">PrototypeAST</span><span class="o">></span> <span class="n">Proto</span><span class="p">,</span>
+ <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">ExprAST</span><span class="o">></span> <span class="n">Body</span><span class="p">)</span>
+ <span class="o">:</span> <span class="n">Proto</span><span class="p">(</span><span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">Proto</span><span class="p">)),</span> <span class="n">Body</span><span class="p">(</span><span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">Body</span><span class="p">))</span> <span class="p">{}</span>
+<span class="p">};</span>
+</pre></div>
+</div>
+<p>In Kaleidoscope, functions are typed with just a count of their
+arguments. Since all values are double precision floating point, the
+type of each argument doesn’t need to be stored anywhere. In a more
+aggressive and realistic language, the “ExprAST” class would probably
+have a type field.</p>
+<p>With this scaffolding, we can now talk about parsing expressions and
+function bodies in Kaleidoscope.</p>
+</div>
+<div class="section" id="parser-basics">
+<h2><a class="toc-backref" href="#id4">2.3. Parser Basics</a><a class="headerlink" href="#parser-basics" title="Permalink to this headline">¶</a></h2>
+<p>Now that we have an AST to build, we need to define the parser code to
+build it. The idea here is that we want to parse something like “x+y”
+(which is returned as three tokens by the lexer) into an AST that could
+be generated with calls like this:</p>
+<div class="highlight-c++"><div class="highlight"><pre><span class="k">auto</span> <span class="n">LHS</span> <span class="o">=</span> <span class="n">llvm</span><span class="o">::</span><span class="n">make_unique</span><span class="o"><</span><span class="n">VariableExprAST</span><span class="o">></span><span class="p">(</span><span class="s">"x"</span><span class="p">);</span>
+<span class="k">auto</span> <span class="n">RHS</span> <span class="o">=</span> <span class="n">llvm</span><span class="o">::</span><span class="n">make_unique</span><span class="o"><</span><span class="n">VariableExprAST</span><span class="o">></span><span class="p">(</span><span class="s">"y"</span><span class="p">);</span>
+<span class="k">auto</span> <span class="n">Result</span> <span class="o">=</span> <span class="n">std</span><span class="o">::</span><span class="n">make_unique</span><span class="o"><</span><span class="n">BinaryExprAST</span><span class="o">></span><span class="p">(</span><span class="sc">'+'</span><span class="p">,</span> <span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">LHS</span><span class="p">),</span>
+ <span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">RHS</span><span class="p">));</span>
+</pre></div>
+</div>
+<p>In order to do this, we’ll start by defining some basic helper routines:</p>
+<div class="highlight-c++"><div class="highlight"><pre><span class="c1">/// CurTok/getNextToken - Provide a simple token buffer. CurTok is the current</span>
+<span class="c1">/// token the parser is looking at. getNextToken reads another token from the</span>
+<span class="c1">/// lexer and updates CurTok with its results.</span>
+<span class="k">static</span> <span class="kt">int</span> <span class="n">CurTok</span><span class="p">;</span>
+<span class="k">static</span> <span class="kt">int</span> <span class="nf">getNextToken</span><span class="p">()</span> <span class="p">{</span>
+ <span class="k">return</span> <span class="n">CurTok</span> <span class="o">=</span> <span class="n">gettok</span><span class="p">();</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+<p>This implements a simple token buffer around the lexer. This allows us
+to look one token ahead at what the lexer is returning. Every function
+in our parser will assume that CurTok is the current token that needs to
+be parsed.</p>
+<div class="highlight-c++"><div class="highlight"><pre><span class="c1">/// Error* - These are little helper functions for error handling.</span>
+<span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">ExprAST</span><span class="o">></span> <span class="n">Error</span><span class="p">(</span><span class="k">const</span> <span class="kt">char</span> <span class="o">*</span><span class="n">Str</span><span class="p">)</span> <span class="p">{</span>
+ <span class="n">fprintf</span><span class="p">(</span><span class="n">stderr</span><span class="p">,</span> <span class="s">"Error: %s</span><span class="se">\n</span><span class="s">"</span><span class="p">,</span> <span class="n">Str</span><span class="p">);</span>
+ <span class="k">return</span> <span class="n">nullptr</span><span class="p">;</span>
+<span class="p">}</span>
+<span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">PrototypeAST</span><span class="o">></span> <span class="n">ErrorP</span><span class="p">(</span><span class="k">const</span> <span class="kt">char</span> <span class="o">*</span><span class="n">Str</span><span class="p">)</span> <span class="p">{</span>
+ <span class="n">Error</span><span class="p">(</span><span class="n">Str</span><span class="p">);</span>
+ <span class="k">return</span> <span class="n">nullptr</span><span class="p">;</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+<p>The <tt class="docutils literal"><span class="pre">Error</span></tt> routines are simple helper routines that our parser will
+use to handle errors. The error recovery in our parser will not be the
+best and is not particular user-friendly, but it will be enough for our
+tutorial. These routines make it easier to handle errors in routines
+that have various return types: they always return null.</p>
+<p>With these basic helper functions, we can implement the first piece of
+our grammar: numeric literals.</p>
+</div>
+<div class="section" id="basic-expression-parsing">
+<h2><a class="toc-backref" href="#id5">2.4. Basic Expression Parsing</a><a class="headerlink" href="#basic-expression-parsing" title="Permalink to this headline">¶</a></h2>
+<p>We start with numeric literals, because they are the simplest to
+process. For each production in our grammar, we’ll define a function
+which parses that production. For numeric literals, we have:</p>
+<div class="highlight-c++"><div class="highlight"><pre><span class="c1">/// numberexpr ::= number</span>
+<span class="k">static</span> <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">ExprAST</span><span class="o">></span> <span class="n">ParseNumberExpr</span><span class="p">()</span> <span class="p">{</span>
+ <span class="k">auto</span> <span class="n">Result</span> <span class="o">=</span> <span class="n">llvm</span><span class="o">::</span><span class="n">make_unique</span><span class="o"><</span><span class="n">NumberExprAST</span><span class="o">></span><span class="p">(</span><span class="n">NumVal</span><span class="p">);</span>
+ <span class="n">getNextToken</span><span class="p">();</span> <span class="c1">// consume the number</span>
+ <span class="k">return</span> <span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">Result</span><span class="p">);</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+<p>This routine is very simple: it expects to be called when the current
+token is a <tt class="docutils literal"><span class="pre">tok_number</span></tt> token. It takes the current number value,
+creates a <tt class="docutils literal"><span class="pre">NumberExprAST</span></tt> node, advances the lexer to the next token,
+and finally returns.</p>
+<p>There are some interesting aspects to this. The most important one is
+that this routine eats all of the tokens that correspond to the
+production and returns the lexer buffer with the next token (which is
+not part of the grammar production) ready to go. This is a fairly
+standard way to go for recursive descent parsers. For a better example,
+the parenthesis operator is defined like this:</p>
+<div class="highlight-c++"><div class="highlight"><pre><span class="c1">/// parenexpr ::= '(' expression ')'</span>
+<span class="k">static</span> <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">ExprAST</span><span class="o">></span> <span class="n">ParseParenExpr</span><span class="p">()</span> <span class="p">{</span>
+ <span class="n">getNextToken</span><span class="p">();</span> <span class="c1">// eat (.</span>
+ <span class="k">auto</span> <span class="n">V</span> <span class="o">=</span> <span class="n">ParseExpression</span><span class="p">();</span>
+ <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="n">V</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">nullptr</span><span class="p">;</span>
+
+ <span class="k">if</span> <span class="p">(</span><span class="n">CurTok</span> <span class="o">!=</span> <span class="sc">')'</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">Error</span><span class="p">(</span><span class="s">"expected ')'"</span><span class="p">);</span>
+ <span class="n">getNextToken</span><span class="p">();</span> <span class="c1">// eat ).</span>
+ <span class="k">return</span> <span class="n">V</span><span class="p">;</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+<p>This function illustrates a number of interesting things about the
+parser:</p>
+<p>1) It shows how we use the Error routines. When called, this function
+expects that the current token is a ‘(‘ token, but after parsing the
+subexpression, it is possible that there is no ‘)’ waiting. For example,
+if the user types in “(4 x” instead of “(4)”, the parser should emit an
+error. Because errors can occur, the parser needs a way to indicate that
+they happened: in our parser, we return null on an error.</p>
+<p>2) Another interesting aspect of this function is that it uses recursion
+by calling <tt class="docutils literal"><span class="pre">ParseExpression</span></tt> (we will soon see that
+<tt class="docutils literal"><span class="pre">ParseExpression</span></tt> can call <tt class="docutils literal"><span class="pre">ParseParenExpr</span></tt>). This is powerful
+because it allows us to handle recursive grammars, and keeps each
+production very simple. Note that parentheses do not cause construction
+of AST nodes themselves. While we could do it this way, the most
+important role of parentheses are to guide the parser and provide
+grouping. Once the parser constructs the AST, parentheses are not
+needed.</p>
+<p>The next simple production is for handling variable references and
+function calls:</p>
+<div class="highlight-c++"><div class="highlight"><pre><span class="c1">/// identifierexpr</span>
+<span class="c1">/// ::= identifier</span>
+<span class="c1">/// ::= identifier '(' expression* ')'</span>
+<span class="k">static</span> <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">ExprAST</span><span class="o">></span> <span class="n">ParseIdentifierExpr</span><span class="p">()</span> <span class="p">{</span>
+ <span class="n">std</span><span class="o">::</span><span class="n">string</span> <span class="n">IdName</span> <span class="o">=</span> <span class="n">IdentifierStr</span><span class="p">;</span>
+
+ <span class="n">getNextToken</span><span class="p">();</span> <span class="c1">// eat identifier.</span>
+
+ <span class="k">if</span> <span class="p">(</span><span class="n">CurTok</span> <span class="o">!=</span> <span class="sc">'('</span><span class="p">)</span> <span class="c1">// Simple variable ref.</span>
+ <span class="k">return</span> <span class="n">llvm</span><span class="o">::</span><span class="n">make_unique</span><span class="o"><</span><span class="n">VariableExprAST</span><span class="o">></span><span class="p">(</span><span class="n">IdName</span><span class="p">);</span>
+
+ <span class="c1">// Call.</span>
+ <span class="n">getNextToken</span><span class="p">();</span> <span class="c1">// eat (</span>
+ <span class="n">std</span><span class="o">::</span><span class="n">vector</span><span class="o"><</span><span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">ExprAST</span><span class="o">>></span> <span class="n">Args</span><span class="p">;</span>
+ <span class="k">if</span> <span class="p">(</span><span class="n">CurTok</span> <span class="o">!=</span> <span class="sc">')'</span><span class="p">)</span> <span class="p">{</span>
+ <span class="k">while</span> <span class="p">(</span><span class="mi">1</span><span class="p">)</span> <span class="p">{</span>
+ <span class="k">if</span> <span class="p">(</span><span class="k">auto</span> <span class="n">Arg</span> <span class="o">=</span> <span class="n">ParseExpression</span><span class="p">())</span>
+ <span class="n">Args</span><span class="p">.</span><span class="n">push_back</span><span class="p">(</span><span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">Arg</span><span class="p">));</span>
+ <span class="k">else</span>
+ <span class="k">return</span> <span class="n">nullptr</span><span class="p">;</span>
+
+ <span class="k">if</span> <span class="p">(</span><span class="n">CurTok</span> <span class="o">==</span> <span class="sc">')'</span><span class="p">)</span>
+ <span class="k">break</span><span class="p">;</span>
+
+ <span class="k">if</span> <span class="p">(</span><span class="n">CurTok</span> <span class="o">!=</span> <span class="sc">','</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">Error</span><span class="p">(</span><span class="s">"Expected ')' or ',' in argument list"</span><span class="p">);</span>
+ <span class="n">getNextToken</span><span class="p">();</span>
+ <span class="p">}</span>
+ <span class="p">}</span>
+
+ <span class="c1">// Eat the ')'.</span>
+ <span class="n">getNextToken</span><span class="p">();</span>
+
+ <span class="k">return</span> <span class="n">llvm</span><span class="o">::</span><span class="n">make_unique</span><span class="o"><</span><span class="n">CallExprAST</span><span class="o">></span><span class="p">(</span><span class="n">IdName</span><span class="p">,</span> <span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">Args</span><span class="p">));</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+<p>This routine follows the same style as the other routines. (It expects
+to be called if the current token is a <tt class="docutils literal"><span class="pre">tok_identifier</span></tt> token). It
+also has recursion and error handling. One interesting aspect of this is
+that it uses <em>look-ahead</em> to determine if the current identifier is a
+stand alone variable reference or if it is a function call expression.
+It handles this by checking to see if the token after the identifier is
+a ‘(‘ token, constructing either a <tt class="docutils literal"><span class="pre">VariableExprAST</span></tt> or
+<tt class="docutils literal"><span class="pre">CallExprAST</span></tt> node as appropriate.</p>
+<p>Now that we have all of our simple expression-parsing logic in place, we
+can define a helper function to wrap it together into one entry point.
+We call this class of expressions “primary” expressions, for reasons
+that will become more clear <a class="reference external" href="LangImpl6.html#user-defined-unary-operators">later in the
+tutorial</a>. In order to parse an arbitrary
+primary expression, we need to determine what sort of expression it is:</p>
+<div class="highlight-c++"><div class="highlight"><pre><span class="c1">/// primary</span>
+<span class="c1">/// ::= identifierexpr</span>
+<span class="c1">/// ::= numberexpr</span>
+<span class="c1">/// ::= parenexpr</span>
+<span class="k">static</span> <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">ExprAST</span><span class="o">></span> <span class="n">ParsePrimary</span><span class="p">()</span> <span class="p">{</span>
+ <span class="k">switch</span> <span class="p">(</span><span class="n">CurTok</span><span class="p">)</span> <span class="p">{</span>
+ <span class="nl">default:</span>
+ <span class="k">return</span> <span class="n">Error</span><span class="p">(</span><span class="s">"unknown token when expecting an expression"</span><span class="p">);</span>
+ <span class="k">case</span> <span class="n">tok_identifier</span>:
+ <span class="k">return</span> <span class="n">ParseIdentifierExpr</span><span class="p">();</span>
+ <span class="k">case</span> <span class="n">tok_number</span>:
+ <span class="k">return</span> <span class="n">ParseNumberExpr</span><span class="p">();</span>
+ <span class="k">case</span> <span class="sc">'('</span>:
+ <span class="k">return</span> <span class="n">ParseParenExpr</span><span class="p">();</span>
+ <span class="p">}</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+<p>Now that you see the definition of this function, it is more obvious why
+we can assume the state of CurTok in the various functions. This uses
+look-ahead to determine which sort of expression is being inspected, and
+then parses it with a function call.</p>
+<p>Now that basic expressions are handled, we need to handle binary
+expressions. They are a bit more complex.</p>
+</div>
+<div class="section" id="binary-expression-parsing">
+<h2><a class="toc-backref" href="#id6">2.5. Binary Expression Parsing</a><a class="headerlink" href="#binary-expression-parsing" title="Permalink to this headline">¶</a></h2>
+<p>Binary expressions are significantly harder to parse because they are
+often ambiguous. For example, when given the string “x+y*z”, the parser
+can choose to parse it as either “(x+y)*z” or “x+(y*z)”. With common
+definitions from mathematics, we expect the later parse, because “*”
+(multiplication) has higher <em>precedence</em> than “+” (addition).</p>
+<p>There are many ways to handle this, but an elegant and efficient way is
+to use <a class="reference external" href="http://en.wikipedia.org/wiki/Operator-precedence_parser">Operator-Precedence
+Parsing</a>.
+This parsing technique uses the precedence of binary operators to guide
+recursion. To start with, we need a table of precedences:</p>
+<div class="highlight-c++"><div class="highlight"><pre><span class="c1">/// BinopPrecedence - This holds the precedence for each binary operator that is</span>
+<span class="c1">/// defined.</span>
+<span class="k">static</span> <span class="n">std</span><span class="o">::</span><span class="n">map</span><span class="o"><</span><span class="kt">char</span><span class="p">,</span> <span class="kt">int</span><span class="o">></span> <span class="n">BinopPrecedence</span><span class="p">;</span>
+
+<span class="c1">/// GetTokPrecedence - Get the precedence of the pending binary operator token.</span>
+<span class="k">static</span> <span class="kt">int</span> <span class="nf">GetTokPrecedence</span><span class="p">()</span> <span class="p">{</span>
+ <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="n">isascii</span><span class="p">(</span><span class="n">CurTok</span><span class="p">))</span>
+ <span class="k">return</span> <span class="o">-</span><span class="mi">1</span><span class="p">;</span>
+
+ <span class="c1">// Make sure it's a declared binop.</span>
+ <span class="kt">int</span> <span class="n">TokPrec</span> <span class="o">=</span> <span class="n">BinopPrecedence</span><span class="p">[</span><span class="n">CurTok</span><span class="p">];</span>
+ <span class="k">if</span> <span class="p">(</span><span class="n">TokPrec</span> <span class="o"><=</span> <span class="mi">0</span><span class="p">)</span> <span class="k">return</span> <span class="o">-</span><span class="mi">1</span><span class="p">;</span>
+ <span class="k">return</span> <span class="n">TokPrec</span><span class="p">;</span>
+<span class="p">}</span>
+
+<span class="kt">int</span> <span class="nf">main</span><span class="p">()</span> <span class="p">{</span>
+ <span class="c1">// Install standard binary operators.</span>
+ <span class="c1">// 1 is lowest precedence.</span>
+ <span class="n">BinopPrecedence</span><span class="p">[</span><span class="sc">'<'</span><span class="p">]</span> <span class="o">=</span> <span class="mi">10</span><span class="p">;</span>
+ <span class="n">BinopPrecedence</span><span class="p">[</span><span class="sc">'+'</span><span class="p">]</span> <span class="o">=</span> <span class="mi">20</span><span class="p">;</span>
+ <span class="n">BinopPrecedence</span><span class="p">[</span><span class="sc">'-'</span><span class="p">]</span> <span class="o">=</span> <span class="mi">20</span><span class="p">;</span>
+ <span class="n">BinopPrecedence</span><span class="p">[</span><span class="sc">'*'</span><span class="p">]</span> <span class="o">=</span> <span class="mi">40</span><span class="p">;</span> <span class="c1">// highest.</span>
+ <span class="p">...</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+<p>For the basic form of Kaleidoscope, we will only support 4 binary
+operators (this can obviously be extended by you, our brave and intrepid
+reader). The <tt class="docutils literal"><span class="pre">GetTokPrecedence</span></tt> function returns the precedence for
+the current token, or -1 if the token is not a binary operator. Having a
+map makes it easy to add new operators and makes it clear that the
+algorithm doesn’t depend on the specific operators involved, but it
+would be easy enough to eliminate the map and do the comparisons in the
+<tt class="docutils literal"><span class="pre">GetTokPrecedence</span></tt> function. (Or just use a fixed-size array).</p>
+<p>With the helper above defined, we can now start parsing binary
+expressions. The basic idea of operator precedence parsing is to break
+down an expression with potentially ambiguous binary operators into
+pieces. Consider, for example, the expression “a+b+(c+d)*e*f+g”.
+Operator precedence parsing considers this as a stream of primary
+expressions separated by binary operators. As such, it will first parse
+the leading primary expression “a”, then it will see the pairs [+, b]
+[+, (c+d)] [*, e] [*, f] and [+, g]. Note that because parentheses are
+primary expressions, the binary expression parser doesn’t need to worry
+about nested subexpressions like (c+d) at all.</p>
+<p>To start, an expression is a primary expression potentially followed by
+a sequence of [binop,primaryexpr] pairs:</p>
+<div class="highlight-c++"><div class="highlight"><pre><span class="c1">/// expression</span>
+<span class="c1">/// ::= primary binoprhs</span>
+<span class="c1">///</span>
+<span class="k">static</span> <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">ExprAST</span><span class="o">></span> <span class="n">ParseExpression</span><span class="p">()</span> <span class="p">{</span>
+ <span class="k">auto</span> <span class="n">LHS</span> <span class="o">=</span> <span class="n">ParsePrimary</span><span class="p">();</span>
+ <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="n">LHS</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">nullptr</span><span class="p">;</span>
+
+ <span class="k">return</span> <span class="nf">ParseBinOpRHS</span><span class="p">(</span><span class="mi">0</span><span class="p">,</span> <span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">LHS</span><span class="p">));</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+<p><tt class="docutils literal"><span class="pre">ParseBinOpRHS</span></tt> is the function that parses the sequence of pairs for
+us. It takes a precedence and a pointer to an expression for the part
+that has been parsed so far. Note that “x” is a perfectly valid
+expression: As such, “binoprhs” is allowed to be empty, in which case it
+returns the expression that is passed into it. In our example above, the
+code passes the expression for “a” into <tt class="docutils literal"><span class="pre">ParseBinOpRHS</span></tt> and the
+current token is “+”.</p>
+<p>The precedence value passed into <tt class="docutils literal"><span class="pre">ParseBinOpRHS</span></tt> indicates the
+<em>minimal operator precedence</em> that the function is allowed to eat. For
+example, if the current pair stream is [+, x] and <tt class="docutils literal"><span class="pre">ParseBinOpRHS</span></tt> is
+passed in a precedence of 40, it will not consume any tokens (because
+the precedence of ‘+’ is only 20). With this in mind, <tt class="docutils literal"><span class="pre">ParseBinOpRHS</span></tt>
+starts with:</p>
+<div class="highlight-c++"><div class="highlight"><pre><span class="c1">/// binoprhs</span>
+<span class="c1">/// ::= ('+' primary)*</span>
+<span class="k">static</span> <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">ExprAST</span><span class="o">></span> <span class="n">ParseBinOpRHS</span><span class="p">(</span><span class="kt">int</span> <span class="n">ExprPrec</span><span class="p">,</span>
+ <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">ExprAST</span><span class="o">></span> <span class="n">LHS</span><span class="p">)</span> <span class="p">{</span>
+ <span class="c1">// If this is a binop, find its precedence.</span>
+ <span class="k">while</span> <span class="p">(</span><span class="mi">1</span><span class="p">)</span> <span class="p">{</span>
+ <span class="kt">int</span> <span class="n">TokPrec</span> <span class="o">=</span> <span class="n">GetTokPrecedence</span><span class="p">();</span>
+
+ <span class="c1">// If this is a binop that binds at least as tightly as the current binop,</span>
+ <span class="c1">// consume it, otherwise we are done.</span>
+ <span class="k">if</span> <span class="p">(</span><span class="n">TokPrec</span> <span class="o"><</span> <span class="n">ExprPrec</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">LHS</span><span class="p">;</span>
+</pre></div>
+</div>
+<p>This code gets the precedence of the current token and checks to see if
+if is too low. Because we defined invalid tokens to have a precedence of
+-1, this check implicitly knows that the pair-stream ends when the token
+stream runs out of binary operators. If this check succeeds, we know
+that the token is a binary operator and that it will be included in this
+expression:</p>
+<div class="highlight-c++"><div class="highlight"><pre><span class="c1">// Okay, we know this is a binop.</span>
+<span class="kt">int</span> <span class="n">BinOp</span> <span class="o">=</span> <span class="n">CurTok</span><span class="p">;</span>
+<span class="n">getNextToken</span><span class="p">();</span> <span class="c1">// eat binop</span>
+
+<span class="c1">// Parse the primary expression after the binary operator.</span>
+<span class="k">auto</span> <span class="n">RHS</span> <span class="o">=</span> <span class="n">ParsePrimary</span><span class="p">();</span>
+<span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="n">RHS</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">nullptr</span><span class="p">;</span>
+</pre></div>
+</div>
+<p>As such, this code eats (and remembers) the binary operator and then
+parses the primary expression that follows. This builds up the whole
+pair, the first of which is [+, b] for the running example.</p>
+<p>Now that we parsed the left-hand side of an expression and one pair of
+the RHS sequence, we have to decide which way the expression associates.
+In particular, we could have “(a+b) binop unparsed” or “a + (b binop
+unparsed)”. To determine this, we look ahead at “binop” to determine its
+precedence and compare it to BinOp’s precedence (which is ‘+’ in this
+case):</p>
+<div class="highlight-c++"><div class="highlight"><pre><span class="c1">// If BinOp binds less tightly with RHS than the operator after RHS, let</span>
+<span class="c1">// the pending operator take RHS as its LHS.</span>
+<span class="kt">int</span> <span class="n">NextPrec</span> <span class="o">=</span> <span class="n">GetTokPrecedence</span><span class="p">();</span>
+<span class="k">if</span> <span class="p">(</span><span class="n">TokPrec</span> <span class="o"><</span> <span class="n">NextPrec</span><span class="p">)</span> <span class="p">{</span>
+</pre></div>
+</div>
+<p>If the precedence of the binop to the right of “RHS” is lower or equal
+to the precedence of our current operator, then we know that the
+parentheses associate as “(a+b) binop ...”. In our example, the current
+operator is “+” and the next operator is “+”, we know that they have the
+same precedence. In this case we’ll create the AST node for “a+b”, and
+then continue parsing:</p>
+<div class="highlight-c++"><div class="highlight"><pre> <span class="p">...</span> <span class="k">if</span> <span class="n">body</span> <span class="n">omitted</span> <span class="p">...</span>
+ <span class="p">}</span>
+
+ <span class="c1">// Merge LHS/RHS.</span>
+ <span class="n">LHS</span> <span class="o">=</span> <span class="n">llvm</span><span class="o">::</span><span class="n">make_unique</span><span class="o"><</span><span class="n">BinaryExprAST</span><span class="o">></span><span class="p">(</span><span class="n">BinOp</span><span class="p">,</span> <span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">LHS</span><span class="p">),</span>
+ <span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">RHS</span><span class="p">));</span>
+ <span class="p">}</span> <span class="c1">// loop around to the top of the while loop.</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+<p>In our example above, this will turn “a+b+” into “(a+b)” and execute the
+next iteration of the loop, with “+” as the current token. The code
+above will eat, remember, and parse “(c+d)” as the primary expression,
+which makes the current pair equal to [+, (c+d)]. It will then evaluate
+the ‘if’ conditional above with “*” as the binop to the right of the
+primary. In this case, the precedence of “*” is higher than the
+precedence of “+” so the if condition will be entered.</p>
+<p>The critical question left here is “how can the if condition parse the
+right hand side in full”? In particular, to build the AST correctly for
+our example, it needs to get all of “(c+d)*e*f” as the RHS expression
+variable. The code to do this is surprisingly simple (code from the
+above two blocks duplicated for context):</p>
+<div class="highlight-c++"><div class="highlight"><pre> <span class="c1">// If BinOp binds less tightly with RHS than the operator after RHS, let</span>
+ <span class="c1">// the pending operator take RHS as its LHS.</span>
+ <span class="kt">int</span> <span class="n">NextPrec</span> <span class="o">=</span> <span class="n">GetTokPrecedence</span><span class="p">();</span>
+ <span class="k">if</span> <span class="p">(</span><span class="n">TokPrec</span> <span class="o"><</span> <span class="n">NextPrec</span><span class="p">)</span> <span class="p">{</span>
+ <span class="n">RHS</span> <span class="o">=</span> <span class="n">ParseBinOpRHS</span><span class="p">(</span><span class="n">TokPrec</span><span class="o">+</span><span class="mi">1</span><span class="p">,</span> <span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">RHS</span><span class="p">));</span>
+ <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="n">RHS</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">nullptr</span><span class="p">;</span>
+ <span class="p">}</span>
+ <span class="c1">// Merge LHS/RHS.</span>
+ <span class="n">LHS</span> <span class="o">=</span> <span class="n">llvm</span><span class="o">::</span><span class="n">make_unique</span><span class="o"><</span><span class="n">BinaryExprAST</span><span class="o">></span><span class="p">(</span><span class="n">BinOp</span><span class="p">,</span> <span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">LHS</span><span class="p">),</span>
+ <span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">RHS</span><span class="p">));</span>
+ <span class="p">}</span> <span class="c1">// loop around to the top of the while loop.</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+<p>At this point, we know that the binary operator to the RHS of our
+primary has higher precedence than the binop we are currently parsing.
+As such, we know that any sequence of pairs whose operators are all
+higher precedence than “+” should be parsed together and returned as
+“RHS”. To do this, we recursively invoke the <tt class="docutils literal"><span class="pre">ParseBinOpRHS</span></tt> function
+specifying “TokPrec+1” as the minimum precedence required for it to
+continue. In our example above, this will cause it to return the AST
+node for “(c+d)*e*f” as RHS, which is then set as the RHS of the ‘+’
+expression.</p>
+<p>Finally, on the next iteration of the while loop, the “+g” piece is
+parsed and added to the AST. With this little bit of code (14
+non-trivial lines), we correctly handle fully general binary expression
+parsing in a very elegant way. This was a whirlwind tour of this code,
+and it is somewhat subtle. I recommend running through it with a few
+tough examples to see how it works.</p>
+<p>This wraps up handling of expressions. At this point, we can point the
+parser at an arbitrary token stream and build an expression from it,
+stopping at the first token that is not part of the expression. Next up
+we need to handle function definitions, etc.</p>
+</div>
+<div class="section" id="parsing-the-rest">
+<h2><a class="toc-backref" href="#id7">2.6. Parsing the Rest</a><a class="headerlink" href="#parsing-the-rest" title="Permalink to this headline">¶</a></h2>
+<p>The next thing missing is handling of function prototypes. In
+Kaleidoscope, these are used both for ‘extern’ function declarations as
+well as function body definitions. The code to do this is
+straight-forward and not very interesting (once you’ve survived
+expressions):</p>
+<div class="highlight-c++"><div class="highlight"><pre><span class="c1">/// prototype</span>
+<span class="c1">/// ::= id '(' id* ')'</span>
+<span class="k">static</span> <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">PrototypeAST</span><span class="o">></span> <span class="n">ParsePrototype</span><span class="p">()</span> <span class="p">{</span>
+ <span class="k">if</span> <span class="p">(</span><span class="n">CurTok</span> <span class="o">!=</span> <span class="n">tok_identifier</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">ErrorP</span><span class="p">(</span><span class="s">"Expected function name in prototype"</span><span class="p">);</span>
+
+ <span class="n">std</span><span class="o">::</span><span class="n">string</span> <span class="n">FnName</span> <span class="o">=</span> <span class="n">IdentifierStr</span><span class="p">;</span>
+ <span class="n">getNextToken</span><span class="p">();</span>
+
+ <span class="k">if</span> <span class="p">(</span><span class="n">CurTok</span> <span class="o">!=</span> <span class="sc">'('</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">ErrorP</span><span class="p">(</span><span class="s">"Expected '(' in prototype"</span><span class="p">);</span>
+
+ <span class="c1">// Read the list of argument names.</span>
+ <span class="n">std</span><span class="o">::</span><span class="n">vector</span><span class="o"><</span><span class="n">std</span><span class="o">::</span><span class="n">string</span><span class="o">></span> <span class="n">ArgNames</span><span class="p">;</span>
+ <span class="k">while</span> <span class="p">(</span><span class="n">getNextToken</span><span class="p">()</span> <span class="o">==</span> <span class="n">tok_identifier</span><span class="p">)</span>
+ <span class="n">ArgNames</span><span class="p">.</span><span class="n">push_back</span><span class="p">(</span><span class="n">IdentifierStr</span><span class="p">);</span>
+ <span class="k">if</span> <span class="p">(</span><span class="n">CurTok</span> <span class="o">!=</span> <span class="sc">')'</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">ErrorP</span><span class="p">(</span><span class="s">"Expected ')' in prototype"</span><span class="p">);</span>
+
+ <span class="c1">// success.</span>
+ <span class="n">getNextToken</span><span class="p">();</span> <span class="c1">// eat ')'.</span>
+
+ <span class="k">return</span> <span class="n">llvm</span><span class="o">::</span><span class="n">make_unique</span><span class="o"><</span><span class="n">PrototypeAST</span><span class="o">></span><span class="p">(</span><span class="n">FnName</span><span class="p">,</span> <span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">ArgNames</span><span class="p">));</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+<p>Given this, a function definition is very simple, just a prototype plus
+an expression to implement the body:</p>
+<div class="highlight-c++"><div class="highlight"><pre><span class="c1">/// definition ::= 'def' prototype expression</span>
+<span class="k">static</span> <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">FunctionAST</span><span class="o">></span> <span class="n">ParseDefinition</span><span class="p">()</span> <span class="p">{</span>
+ <span class="n">getNextToken</span><span class="p">();</span> <span class="c1">// eat def.</span>
+ <span class="k">auto</span> <span class="n">Proto</span> <span class="o">=</span> <span class="n">ParsePrototype</span><span class="p">();</span>
+ <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="n">Proto</span><span class="p">)</span> <span class="k">return</span> <span class="n">nullptr</span><span class="p">;</span>
+
+ <span class="k">if</span> <span class="p">(</span><span class="k">auto</span> <span class="n">E</span> <span class="o">=</span> <span class="n">ParseExpression</span><span class="p">())</span>
+ <span class="k">return</span> <span class="n">llvm</span><span class="o">::</span><span class="n">make_unique</span><span class="o"><</span><span class="n">FunctionAST</span><span class="o">></span><span class="p">(</span><span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">Proto</span><span class="p">),</span> <span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">E</span><span class="p">));</span>
+ <span class="k">return</span> <span class="n">nullptr</span><span class="p">;</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+<p>In addition, we support ‘extern’ to declare functions like ‘sin’ and
+‘cos’ as well as to support forward declaration of user functions. These
+‘extern’s are just prototypes with no body:</p>
+<div class="highlight-c++"><div class="highlight"><pre><span class="c1">/// external ::= 'extern' prototype</span>
+<span class="k">static</span> <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">PrototypeAST</span><span class="o">></span> <span class="n">ParseExtern</span><span class="p">()</span> <span class="p">{</span>
+ <span class="n">getNextToken</span><span class="p">();</span> <span class="c1">// eat extern.</span>
+ <span class="k">return</span> <span class="nf">ParsePrototype</span><span class="p">();</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+<p>Finally, we’ll also let the user type in arbitrary top-level expressions
+and evaluate them on the fly. We will handle this by defining anonymous
+nullary (zero argument) functions for them:</p>
+<div class="highlight-c++"><div class="highlight"><pre><span class="c1">/// toplevelexpr ::= expression</span>
+<span class="k">static</span> <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">FunctionAST</span><span class="o">></span> <span class="n">ParseTopLevelExpr</span><span class="p">()</span> <span class="p">{</span>
+ <span class="k">if</span> <span class="p">(</span><span class="k">auto</span> <span class="n">E</span> <span class="o">=</span> <span class="n">ParseExpression</span><span class="p">())</span> <span class="p">{</span>
+ <span class="c1">// Make an anonymous proto.</span>
+ <span class="k">auto</span> <span class="n">Proto</span> <span class="o">=</span> <span class="n">llvm</span><span class="o">::</span><span class="n">make_unique</span><span class="o"><</span><span class="n">PrototypeAST</span><span class="o">></span><span class="p">(</span><span class="s">""</span><span class="p">,</span> <span class="n">std</span><span class="o">::</span><span class="n">vector</span><span class="o"><</span><span class="n">std</span><span class="o">::</span><span class="n">string</span><span class="o">></span><span class="p">());</span>
+ <span class="k">return</span> <span class="n">llvm</span><span class="o">::</span><span class="n">make_unique</span><span class="o"><</span><span class="n">FunctionAST</span><span class="o">></span><span class="p">(</span><span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">Proto</span><span class="p">),</span> <span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">E</span><span class="p">));</span>
+ <span class="p">}</span>
+ <span class="k">return</span> <span class="n">nullptr</span><span class="p">;</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+<p>Now that we have all the pieces, let’s build a little driver that will
+let us actually <em>execute</em> this code we’ve built!</p>
+</div>
+<div class="section" id="the-driver">
+<h2><a class="toc-backref" href="#id8">2.7. The Driver</a><a class="headerlink" href="#the-driver" title="Permalink to this headline">¶</a></h2>
+<p>The driver for this simply invokes all of the parsing pieces with a
+top-level dispatch loop. There isn’t much interesting here, so I’ll just
+include the top-level loop. See <a class="reference external" href="#full-code-listing">below</a> for full code in the
+“Top-Level Parsing” section.</p>
+<div class="highlight-c++"><div class="highlight"><pre><span class="c1">/// top ::= definition | external | expression | ';'</span>
+<span class="k">static</span> <span class="kt">void</span> <span class="nf">MainLoop</span><span class="p">()</span> <span class="p">{</span>
+ <span class="k">while</span> <span class="p">(</span><span class="mi">1</span><span class="p">)</span> <span class="p">{</span>
+ <span class="n">fprintf</span><span class="p">(</span><span class="n">stderr</span><span class="p">,</span> <span class="s">"ready> "</span><span class="p">);</span>
+ <span class="k">switch</span> <span class="p">(</span><span class="n">CurTok</span><span class="p">)</span> <span class="p">{</span>
+ <span class="k">case</span> <span class="n">tok_eof</span>:
+ <span class="k">return</span><span class="p">;</span>
+ <span class="k">case</span> <span class="sc">';'</span>: <span class="c1">// ignore top-level semicolons.</span>
+ <span class="n">getNextToken</span><span class="p">();</span>
+ <span class="k">break</span><span class="p">;</span>
+ <span class="k">case</span> <span class="n">tok_def</span>:
+ <span class="n">HandleDefinition</span><span class="p">();</span>
+ <span class="k">break</span><span class="p">;</span>
+ <span class="k">case</span> <span class="n">tok_extern</span>:
+ <span class="n">HandleExtern</span><span class="p">();</span>
+ <span class="k">break</span><span class="p">;</span>
+ <span class="nl">default:</span>
+ <span class="n">HandleTopLevelExpression</span><span class="p">();</span>
+ <span class="k">break</span><span class="p">;</span>
+ <span class="p">}</span>
+ <span class="p">}</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+<p>The most interesting part of this is that we ignore top-level
+semicolons. Why is this, you ask? The basic reason is that if you type
+“4 + 5” at the command line, the parser doesn’t know whether that is the
+end of what you will type or not. For example, on the next line you
+could type “def foo...” in which case 4+5 is the end of a top-level
+expression. Alternatively you could type “* 6”, which would continue
+the expression. Having top-level semicolons allows you to type “4+5;”,
+and the parser will know you are done.</p>
+</div>
+<div class="section" id="conclusions">
+<h2><a class="toc-backref" href="#id9">2.8. Conclusions</a><a class="headerlink" href="#conclusions" title="Permalink to this headline">¶</a></h2>
+<p>With just under 400 lines of commented code (240 lines of non-comment,
+non-blank code), we fully defined our minimal language, including a
+lexer, parser, and AST builder. With this done, the executable will
+validate Kaleidoscope code and tell us if it is grammatically invalid.
+For example, here is a sample interaction:</p>
+<div class="highlight-bash"><div class="highlight"><pre>$ ./a.out
+ready> def foo(x y) x+foo(y, 4.0);
+Parsed a function definition.
+ready> def foo(x y) x+y y;
+Parsed a function definition.
+Parsed a top-level expr
+ready> def foo(x y) x+y );
+Parsed a function definition.
+Error: unknown token when expecting an expression
+ready> extern sin(a);
+ready> Parsed an extern
+ready> ^D
+$
+</pre></div>
+</div>
+<p>There is a lot of room for extension here. You can define new AST nodes,
+extend the language in many ways, etc. In the <a class="reference external" href="LangImpl3.html">next
+installment</a>, we will describe how to generate LLVM
+Intermediate Representation (IR) from the AST.</p>
+</div>
+<div class="section" id="full-code-listing">
+<h2><a class="toc-backref" href="#id10">2.9. Full Code Listing</a><a class="headerlink" href="#full-code-listing" title="Permalink to this headline">¶</a></h2>
+<p>Here is the complete code listing for this and the previous chapter.
+Note that it is fully self-contained: you don’t need LLVM or any
+external libraries at all for this. (Besides the C and C++ standard
+libraries, of course.) To build this, just compile with:</p>
+<div class="highlight-bash"><div class="highlight"><pre><span class="c"># Compile</span>
+clang++ -g -O3 toy.cpp
+<span class="c"># Run</span>
+./a.out
+</pre></div>
+</div>
+<p>Here is the code:</p>
+<div class="highlight-c++"><div class="highlight"><pre><span class="cp">#include <cctype></span>
+<span class="cp">#include <cstdio></span>
+<span class="cp">#include <map></span>
+<span class="cp">#include <memory></span>
+<span class="cp">#include <string></span>
+<span class="cp">#include <vector></span>
+
+<span class="k">namespace</span> <span class="n">helper</span> <span class="p">{</span>
+<span class="c1">// Cloning make_unique here until it's standard in C++14.</span>
+<span class="c1">// Using a namespace to avoid conflicting with MSVC's std::make_unique (which</span>
+<span class="c1">// ADL can sometimes find in unqualified calls).</span>
+<span class="k">template</span> <span class="o"><</span><span class="k">class</span> <span class="nc">T</span><span class="p">,</span> <span class="n">class</span><span class="p">...</span> <span class="n">Args</span><span class="o">></span>
+<span class="k">static</span>
+ <span class="k">typename</span> <span class="n">std</span><span class="o">::</span><span class="n">enable_if</span><span class="o"><!</span><span class="n">std</span><span class="o">::</span><span class="n">is_array</span><span class="o"><</span><span class="n">T</span><span class="o">>::</span><span class="n">value</span><span class="p">,</span> <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">T</span><span class="o">>>::</span><span class="n">type</span>
+ <span class="n">make_unique</span><span class="p">(</span><span class="n">Args</span> <span class="o">&&</span><span class="p">...</span> <span class="n">args</span><span class="p">)</span> <span class="p">{</span>
+ <span class="k">return</span> <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">T</span><span class="o">></span><span class="p">(</span><span class="k">new</span> <span class="n">T</span><span class="p">(</span><span class="n">std</span><span class="o">::</span><span class="n">forward</span><span class="o"><</span><span class="n">Args</span><span class="o">></span><span class="p">(</span><span class="n">args</span><span class="p">)...));</span>
+<span class="p">}</span>
+<span class="p">}</span>
+
+<span class="c1">//===----------------------------------------------------------------------===//</span>
+<span class="c1">// Lexer</span>
+<span class="c1">//===----------------------------------------------------------------------===//</span>
+
+<span class="c1">// The lexer returns tokens [0-255] if it is an unknown character, otherwise one</span>
+<span class="c1">// of these for known things.</span>
+<span class="k">enum</span> <span class="n">Token</span> <span class="p">{</span>
+ <span class="n">tok_eof</span> <span class="o">=</span> <span class="o">-</span><span class="mi">1</span><span class="p">,</span>
+
+ <span class="c1">// commands</span>
+ <span class="n">tok_def</span> <span class="o">=</span> <span class="o">-</span><span class="mi">2</span><span class="p">,</span>
+ <span class="n">tok_extern</span> <span class="o">=</span> <span class="o">-</span><span class="mi">3</span><span class="p">,</span>
+
+ <span class="c1">// primary</span>
+ <span class="n">tok_identifier</span> <span class="o">=</span> <span class="o">-</span><span class="mi">4</span><span class="p">,</span>
+ <span class="n">tok_number</span> <span class="o">=</span> <span class="o">-</span><span class="mi">5</span>
+<span class="p">};</span>
+
+<span class="k">static</span> <span class="n">std</span><span class="o">::</span><span class="n">string</span> <span class="n">IdentifierStr</span><span class="p">;</span> <span class="c1">// Filled in if tok_identifier</span>
+<span class="k">static</span> <span class="kt">double</span> <span class="n">NumVal</span><span class="p">;</span> <span class="c1">// Filled in if tok_number</span>
+
+<span class="c1">/// gettok - Return the next token from standard input.</span>
+<span class="k">static</span> <span class="kt">int</span> <span class="nf">gettok</span><span class="p">()</span> <span class="p">{</span>
+ <span class="k">static</span> <span class="kt">int</span> <span class="n">LastChar</span> <span class="o">=</span> <span class="sc">' '</span><span class="p">;</span>
+
+ <span class="c1">// Skip any whitespace.</span>
+ <span class="k">while</span> <span class="p">(</span><span class="n">isspace</span><span class="p">(</span><span class="n">LastChar</span><span class="p">))</span>
+ <span class="n">LastChar</span> <span class="o">=</span> <span class="n">getchar</span><span class="p">();</span>
+
+ <span class="k">if</span> <span class="p">(</span><span class="n">isalpha</span><span class="p">(</span><span class="n">LastChar</span><span class="p">))</span> <span class="p">{</span> <span class="c1">// identifier: [a-zA-Z][a-zA-Z0-9]*</span>
+ <span class="n">IdentifierStr</span> <span class="o">=</span> <span class="n">LastChar</span><span class="p">;</span>
+ <span class="k">while</span> <span class="p">(</span><span class="n">isalnum</span><span class="p">((</span><span class="n">LastChar</span> <span class="o">=</span> <span class="n">getchar</span><span class="p">())))</span>
+ <span class="n">IdentifierStr</span> <span class="o">+=</span> <span class="n">LastChar</span><span class="p">;</span>
+
+ <span class="k">if</span> <span class="p">(</span><span class="n">IdentifierStr</span> <span class="o">==</span> <span class="s">"def"</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">tok_def</span><span class="p">;</span>
+ <span class="k">if</span> <span class="p">(</span><span class="n">IdentifierStr</span> <span class="o">==</span> <span class="s">"extern"</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">tok_extern</span><span class="p">;</span>
+ <span class="k">return</span> <span class="n">tok_identifier</span><span class="p">;</span>
+ <span class="p">}</span>
+
+ <span class="k">if</span> <span class="p">(</span><span class="n">isdigit</span><span class="p">(</span><span class="n">LastChar</span><span class="p">)</span> <span class="o">||</span> <span class="n">LastChar</span> <span class="o">==</span> <span class="sc">'.'</span><span class="p">)</span> <span class="p">{</span> <span class="c1">// Number: [0-9.]+</span>
+ <span class="n">std</span><span class="o">::</span><span class="n">string</span> <span class="n">NumStr</span><span class="p">;</span>
+ <span class="k">do</span> <span class="p">{</span>
+ <span class="n">NumStr</span> <span class="o">+=</span> <span class="n">LastChar</span><span class="p">;</span>
+ <span class="n">LastChar</span> <span class="o">=</span> <span class="n">getchar</span><span class="p">();</span>
+ <span class="p">}</span> <span class="k">while</span> <span class="p">(</span><span class="n">isdigit</span><span class="p">(</span><span class="n">LastChar</span><span class="p">)</span> <span class="o">||</span> <span class="n">LastChar</span> <span class="o">==</span> <span class="sc">'.'</span><span class="p">);</span>
+
+ <span class="n">NumVal</span> <span class="o">=</span> <span class="n">strtod</span><span class="p">(</span><span class="n">NumStr</span><span class="p">.</span><span class="n">c_str</span><span class="p">(),</span> <span class="n">nullptr</span><span class="p">);</span>
+ <span class="k">return</span> <span class="n">tok_number</span><span class="p">;</span>
+ <span class="p">}</span>
+
+ <span class="k">if</span> <span class="p">(</span><span class="n">LastChar</span> <span class="o">==</span> <span class="sc">'#'</span><span class="p">)</span> <span class="p">{</span>
+ <span class="c1">// Comment until end of line.</span>
+ <span class="k">do</span>
+ <span class="n">LastChar</span> <span class="o">=</span> <span class="n">getchar</span><span class="p">();</span>
+ <span class="k">while</span> <span class="p">(</span><span class="n">LastChar</span> <span class="o">!=</span> <span class="n">EOF</span> <span class="o">&&</span> <span class="n">LastChar</span> <span class="o">!=</span> <span class="sc">'\n'</span> <span class="o">&&</span> <span class="n">LastChar</span> <span class="o">!=</span> <span class="sc">'\r'</span><span class="p">);</span>
+
+ <span class="k">if</span> <span class="p">(</span><span class="n">LastChar</span> <span class="o">!=</span> <span class="n">EOF</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">gettok</span><span class="p">();</span>
+ <span class="p">}</span>
+
+ <span class="c1">// Check for end of file. Don't eat the EOF.</span>
+ <span class="k">if</span> <span class="p">(</span><span class="n">LastChar</span> <span class="o">==</span> <span class="n">EOF</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">tok_eof</span><span class="p">;</span>
+
+ <span class="c1">// Otherwise, just return the character as its ascii value.</span>
+ <span class="kt">int</span> <span class="n">ThisChar</span> <span class="o">=</span> <span class="n">LastChar</span><span class="p">;</span>
+ <span class="n">LastChar</span> <span class="o">=</span> <span class="n">getchar</span><span class="p">();</span>
+ <span class="k">return</span> <span class="n">ThisChar</span><span class="p">;</span>
+<span class="p">}</span>
+
+<span class="c1">//===----------------------------------------------------------------------===//</span>
+<span class="c1">// Abstract Syntax Tree (aka Parse Tree)</span>
+<span class="c1">//===----------------------------------------------------------------------===//</span>
+<span class="k">namespace</span> <span class="p">{</span>
+<span class="c1">/// ExprAST - Base class for all expression nodes.</span>
+<span class="k">class</span> <span class="nc">ExprAST</span> <span class="p">{</span>
+<span class="nl">public:</span>
+ <span class="k">virtual</span> <span class="o">~</span><span class="n">ExprAST</span><span class="p">()</span> <span class="p">{}</span>
+<span class="p">};</span>
+
+<span class="c1">/// NumberExprAST - Expression class for numeric literals like "1.0".</span>
+<span class="k">class</span> <span class="nc">NumberExprAST</span> <span class="o">:</span> <span class="k">public</span> <span class="n">ExprAST</span> <span class="p">{</span>
+ <span class="kt">double</span> <span class="n">Val</span><span class="p">;</span>
+
+<span class="nl">public:</span>
+ <span class="n">NumberExprAST</span><span class="p">(</span><span class="kt">double</span> <span class="n">Val</span><span class="p">)</span> <span class="o">:</span> <span class="n">Val</span><span class="p">(</span><span class="n">Val</span><span class="p">)</span> <span class="p">{}</span>
+<span class="p">};</span>
+
+<span class="c1">/// VariableExprAST - Expression class for referencing a variable, like "a".</span>
+<span class="k">class</span> <span class="nc">VariableExprAST</span> <span class="o">:</span> <span class="k">public</span> <span class="n">ExprAST</span> <span class="p">{</span>
+ <span class="n">std</span><span class="o">::</span><span class="n">string</span> <span class="n">Name</span><span class="p">;</span>
+
+<span class="nl">public:</span>
+ <span class="n">VariableExprAST</span><span class="p">(</span><span class="k">const</span> <span class="n">std</span><span class="o">::</span><span class="n">string</span> <span class="o">&</span><span class="n">Name</span><span class="p">)</span> <span class="o">:</span> <span class="n">Name</span><span class="p">(</span><span class="n">Name</span><span class="p">)</span> <span class="p">{}</span>
+<span class="p">};</span>
+
+<span class="c1">/// BinaryExprAST - Expression class for a binary operator.</span>
+<span class="k">class</span> <span class="nc">BinaryExprAST</span> <span class="o">:</span> <span class="k">public</span> <span class="n">ExprAST</span> <span class="p">{</span>
+ <span class="kt">char</span> <span class="n">Op</span><span class="p">;</span>
+ <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">ExprAST</span><span class="o">></span> <span class="n">LHS</span><span class="p">,</span> <span class="n">RHS</span><span class="p">;</span>
+
+<span class="nl">public:</span>
+ <span class="n">BinaryExprAST</span><span class="p">(</span><span class="kt">char</span> <span class="n">Op</span><span class="p">,</span> <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">ExprAST</span><span class="o">></span> <span class="n">LHS</span><span class="p">,</span>
+ <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">ExprAST</span><span class="o">></span> <span class="n">RHS</span><span class="p">)</span>
+ <span class="o">:</span> <span class="n">Op</span><span class="p">(</span><span class="n">Op</span><span class="p">),</span> <span class="n">LHS</span><span class="p">(</span><span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">LHS</span><span class="p">)),</span> <span class="n">RHS</span><span class="p">(</span><span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">RHS</span><span class="p">))</span> <span class="p">{}</span>
+<span class="p">};</span>
+
+<span class="c1">/// CallExprAST - Expression class for function calls.</span>
+<span class="k">class</span> <span class="nc">CallExprAST</span> <span class="o">:</span> <span class="k">public</span> <span class="n">ExprAST</span> <span class="p">{</span>
+ <span class="n">std</span><span class="o">::</span><span class="n">string</span> <span class="n">Callee</span><span class="p">;</span>
+ <span class="n">std</span><span class="o">::</span><span class="n">vector</span><span class="o"><</span><span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">ExprAST</span><span class="o">>></span> <span class="n">Args</span><span class="p">;</span>
+
+<span class="nl">public:</span>
+ <span class="n">CallExprAST</span><span class="p">(</span><span class="k">const</span> <span class="n">std</span><span class="o">::</span><span class="n">string</span> <span class="o">&</span><span class="n">Callee</span><span class="p">,</span>
+ <span class="n">std</span><span class="o">::</span><span class="n">vector</span><span class="o"><</span><span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">ExprAST</span><span class="o">>></span> <span class="n">Args</span><span class="p">)</span>
+ <span class="o">:</span> <span class="n">Callee</span><span class="p">(</span><span class="n">Callee</span><span class="p">),</span> <span class="n">Args</span><span class="p">(</span><span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">Args</span><span class="p">))</span> <span class="p">{}</span>
+<span class="p">};</span>
+
+<span class="c1">/// PrototypeAST - This class represents the "prototype" for a function,</span>
+<span class="c1">/// which captures its name, and its argument names (thus implicitly the number</span>
+<span class="c1">/// of arguments the function takes).</span>
+<span class="k">class</span> <span class="nc">PrototypeAST</span> <span class="p">{</span>
+ <span class="n">std</span><span class="o">::</span><span class="n">string</span> <span class="n">Name</span><span class="p">;</span>
+ <span class="n">std</span><span class="o">::</span><span class="n">vector</span><span class="o"><</span><span class="n">std</span><span class="o">::</span><span class="n">string</span><span class="o">></span> <span class="n">Args</span><span class="p">;</span>
+
+<span class="nl">public:</span>
+ <span class="n">PrototypeAST</span><span class="p">(</span><span class="k">const</span> <span class="n">std</span><span class="o">::</span><span class="n">string</span> <span class="o">&</span><span class="n">Name</span><span class="p">,</span> <span class="n">std</span><span class="o">::</span><span class="n">vector</span><span class="o"><</span><span class="n">std</span><span class="o">::</span><span class="n">string</span><span class="o">></span> <span class="n">Args</span><span class="p">)</span>
+ <span class="o">:</span> <span class="n">Name</span><span class="p">(</span><span class="n">Name</span><span class="p">),</span> <span class="n">Args</span><span class="p">(</span><span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">Args</span><span class="p">))</span> <span class="p">{}</span>
+<span class="p">};</span>
+
+<span class="c1">/// FunctionAST - This class represents a function definition itself.</span>
+<span class="k">class</span> <span class="nc">FunctionAST</span> <span class="p">{</span>
+ <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">PrototypeAST</span><span class="o">></span> <span class="n">Proto</span><span class="p">;</span>
+ <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">ExprAST</span><span class="o">></span> <span class="n">Body</span><span class="p">;</span>
+
+<span class="nl">public:</span>
+ <span class="n">FunctionAST</span><span class="p">(</span><span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">PrototypeAST</span><span class="o">></span> <span class="n">Proto</span><span class="p">,</span>
+ <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">ExprAST</span><span class="o">></span> <span class="n">Body</span><span class="p">)</span>
+ <span class="o">:</span> <span class="n">Proto</span><span class="p">(</span><span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">Proto</span><span class="p">)),</span> <span class="n">Body</span><span class="p">(</span><span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">Body</span><span class="p">))</span> <span class="p">{}</span>
+<span class="p">};</span>
+<span class="p">}</span> <span class="c1">// end anonymous namespace</span>
+
+<span class="c1">//===----------------------------------------------------------------------===//</span>
+<span class="c1">// Parser</span>
+<span class="c1">//===----------------------------------------------------------------------===//</span>
+
+<span class="c1">/// CurTok/getNextToken - Provide a simple token buffer. CurTok is the current</span>
+<span class="c1">/// token the parser is looking at. getNextToken reads another token from the</span>
+<span class="c1">/// lexer and updates CurTok with its results.</span>
+<span class="k">static</span> <span class="kt">int</span> <span class="n">CurTok</span><span class="p">;</span>
+<span class="k">static</span> <span class="kt">int</span> <span class="nf">getNextToken</span><span class="p">()</span> <span class="p">{</span> <span class="k">return</span> <span class="n">CurTok</span> <span class="o">=</span> <span class="n">gettok</span><span class="p">();</span> <span class="p">}</span>
+
+<span class="c1">/// BinopPrecedence - This holds the precedence for each binary operator that is</span>
+<span class="c1">/// defined.</span>
+<span class="k">static</span> <span class="n">std</span><span class="o">::</span><span class="n">map</span><span class="o"><</span><span class="kt">char</span><span class="p">,</span> <span class="kt">int</span><span class="o">></span> <span class="n">BinopPrecedence</span><span class="p">;</span>
+
+<span class="c1">/// GetTokPrecedence - Get the precedence of the pending binary operator token.</span>
+<span class="k">static</span> <span class="kt">int</span> <span class="nf">GetTokPrecedence</span><span class="p">()</span> <span class="p">{</span>
+ <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="n">isascii</span><span class="p">(</span><span class="n">CurTok</span><span class="p">))</span>
+ <span class="k">return</span> <span class="o">-</span><span class="mi">1</span><span class="p">;</span>
+
+ <span class="c1">// Make sure it's a declared binop.</span>
+ <span class="kt">int</span> <span class="n">TokPrec</span> <span class="o">=</span> <span class="n">BinopPrecedence</span><span class="p">[</span><span class="n">CurTok</span><span class="p">];</span>
+ <span class="k">if</span> <span class="p">(</span><span class="n">TokPrec</span> <span class="o"><=</span> <span class="mi">0</span><span class="p">)</span>
+ <span class="k">return</span> <span class="o">-</span><span class="mi">1</span><span class="p">;</span>
+ <span class="k">return</span> <span class="n">TokPrec</span><span class="p">;</span>
+<span class="p">}</span>
+
+<span class="c1">/// Error* - These are little helper functions for error handling.</span>
+<span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">ExprAST</span><span class="o">></span> <span class="n">Error</span><span class="p">(</span><span class="k">const</span> <span class="kt">char</span> <span class="o">*</span><span class="n">Str</span><span class="p">)</span> <span class="p">{</span>
+ <span class="n">fprintf</span><span class="p">(</span><span class="n">stderr</span><span class="p">,</span> <span class="s">"Error: %s</span><span class="se">\n</span><span class="s">"</span><span class="p">,</span> <span class="n">Str</span><span class="p">);</span>
+ <span class="k">return</span> <span class="n">nullptr</span><span class="p">;</span>
+<span class="p">}</span>
+<span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">PrototypeAST</span><span class="o">></span> <span class="n">ErrorP</span><span class="p">(</span><span class="k">const</span> <span class="kt">char</span> <span class="o">*</span><span class="n">Str</span><span class="p">)</span> <span class="p">{</span>
+ <span class="n">Error</span><span class="p">(</span><span class="n">Str</span><span class="p">);</span>
+ <span class="k">return</span> <span class="n">nullptr</span><span class="p">;</span>
+<span class="p">}</span>
+
+<span class="k">static</span> <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">ExprAST</span><span class="o">></span> <span class="n">ParseExpression</span><span class="p">();</span>
+
+<span class="c1">/// numberexpr ::= number</span>
+<span class="k">static</span> <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">ExprAST</span><span class="o">></span> <span class="n">ParseNumberExpr</span><span class="p">()</span> <span class="p">{</span>
+ <span class="k">auto</span> <span class="n">Result</span> <span class="o">=</span> <span class="n">helper</span><span class="o">::</span><span class="n">make_unique</span><span class="o"><</span><span class="n">NumberExprAST</span><span class="o">></span><span class="p">(</span><span class="n">NumVal</span><span class="p">);</span>
+ <span class="n">getNextToken</span><span class="p">();</span> <span class="c1">// consume the number</span>
+ <span class="k">return</span> <span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">Result</span><span class="p">);</span>
+<span class="p">}</span>
+
+<span class="c1">/// parenexpr ::= '(' expression ')'</span>
+<span class="k">static</span> <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">ExprAST</span><span class="o">></span> <span class="n">ParseParenExpr</span><span class="p">()</span> <span class="p">{</span>
+ <span class="n">getNextToken</span><span class="p">();</span> <span class="c1">// eat (.</span>
+ <span class="k">auto</span> <span class="n">V</span> <span class="o">=</span> <span class="n">ParseExpression</span><span class="p">();</span>
+ <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="n">V</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">nullptr</span><span class="p">;</span>
+
+ <span class="k">if</span> <span class="p">(</span><span class="n">CurTok</span> <span class="o">!=</span> <span class="sc">')'</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">Error</span><span class="p">(</span><span class="s">"expected ')'"</span><span class="p">);</span>
+ <span class="n">getNextToken</span><span class="p">();</span> <span class="c1">// eat ).</span>
+ <span class="k">return</span> <span class="n">V</span><span class="p">;</span>
+<span class="p">}</span>
+
+<span class="c1">/// identifierexpr</span>
+<span class="c1">/// ::= identifier</span>
+<span class="c1">/// ::= identifier '(' expression* ')'</span>
+<span class="k">static</span> <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">ExprAST</span><span class="o">></span> <span class="n">ParseIdentifierExpr</span><span class="p">()</span> <span class="p">{</span>
+ <span class="n">std</span><span class="o">::</span><span class="n">string</span> <span class="n">IdName</span> <span class="o">=</span> <span class="n">IdentifierStr</span><span class="p">;</span>
+
+ <span class="n">getNextToken</span><span class="p">();</span> <span class="c1">// eat identifier.</span>
+
+ <span class="k">if</span> <span class="p">(</span><span class="n">CurTok</span> <span class="o">!=</span> <span class="sc">'('</span><span class="p">)</span> <span class="c1">// Simple variable ref.</span>
+ <span class="k">return</span> <span class="n">helper</span><span class="o">::</span><span class="n">make_unique</span><span class="o"><</span><span class="n">VariableExprAST</span><span class="o">></span><span class="p">(</span><span class="n">IdName</span><span class="p">);</span>
+
+ <span class="c1">// Call.</span>
+ <span class="n">getNextToken</span><span class="p">();</span> <span class="c1">// eat (</span>
+ <span class="n">std</span><span class="o">::</span><span class="n">vector</span><span class="o"><</span><span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">ExprAST</span><span class="o">>></span> <span class="n">Args</span><span class="p">;</span>
+ <span class="k">if</span> <span class="p">(</span><span class="n">CurTok</span> <span class="o">!=</span> <span class="sc">')'</span><span class="p">)</span> <span class="p">{</span>
+ <span class="k">while</span> <span class="p">(</span><span class="mi">1</span><span class="p">)</span> <span class="p">{</span>
+ <span class="k">if</span> <span class="p">(</span><span class="k">auto</span> <span class="n">Arg</span> <span class="o">=</span> <span class="n">ParseExpression</span><span class="p">())</span>
+ <span class="n">Args</span><span class="p">.</span><span class="n">push_back</span><span class="p">(</span><span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">Arg</span><span class="p">));</span>
+ <span class="k">else</span>
+ <span class="k">return</span> <span class="n">nullptr</span><span class="p">;</span>
+
+ <span class="k">if</span> <span class="p">(</span><span class="n">CurTok</span> <span class="o">==</span> <span class="sc">')'</span><span class="p">)</span>
+ <span class="k">break</span><span class="p">;</span>
+
+ <span class="k">if</span> <span class="p">(</span><span class="n">CurTok</span> <span class="o">!=</span> <span class="sc">','</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">Error</span><span class="p">(</span><span class="s">"Expected ')' or ',' in argument list"</span><span class="p">);</span>
+ <span class="n">getNextToken</span><span class="p">();</span>
+ <span class="p">}</span>
+ <span class="p">}</span>
+
+ <span class="c1">// Eat the ')'.</span>
+ <span class="n">getNextToken</span><span class="p">();</span>
+
+ <span class="k">return</span> <span class="n">helper</span><span class="o">::</span><span class="n">make_unique</span><span class="o"><</span><span class="n">CallExprAST</span><span class="o">></span><span class="p">(</span><span class="n">IdName</span><span class="p">,</span> <span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">Args</span><span class="p">));</span>
+<span class="p">}</span>
+
+<span class="c1">/// primary</span>
+<span class="c1">/// ::= identifierexpr</span>
+<span class="c1">/// ::= numberexpr</span>
+<span class="c1">/// ::= parenexpr</span>
+<span class="k">static</span> <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">ExprAST</span><span class="o">></span> <span class="n">ParsePrimary</span><span class="p">()</span> <span class="p">{</span>
+ <span class="k">switch</span> <span class="p">(</span><span class="n">CurTok</span><span class="p">)</span> <span class="p">{</span>
+ <span class="nl">default:</span>
+ <span class="k">return</span> <span class="n">Error</span><span class="p">(</span><span class="s">"unknown token when expecting an expression"</span><span class="p">);</span>
+ <span class="k">case</span> <span class="n">tok_identifier</span>:
+ <span class="k">return</span> <span class="n">ParseIdentifierExpr</span><span class="p">();</span>
+ <span class="k">case</span> <span class="n">tok_number</span>:
+ <span class="k">return</span> <span class="n">ParseNumberExpr</span><span class="p">();</span>
+ <span class="k">case</span> <span class="sc">'('</span>:
+ <span class="k">return</span> <span class="n">ParseParenExpr</span><span class="p">();</span>
+ <span class="p">}</span>
+<span class="p">}</span>
+
+<span class="c1">/// binoprhs</span>
+<span class="c1">/// ::= ('+' primary)*</span>
+<span class="k">static</span> <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">ExprAST</span><span class="o">></span> <span class="n">ParseBinOpRHS</span><span class="p">(</span><span class="kt">int</span> <span class="n">ExprPrec</span><span class="p">,</span>
+ <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">ExprAST</span><span class="o">></span> <span class="n">LHS</span><span class="p">)</span> <span class="p">{</span>
+ <span class="c1">// If this is a binop, find its precedence.</span>
+ <span class="k">while</span> <span class="p">(</span><span class="mi">1</span><span class="p">)</span> <span class="p">{</span>
+ <span class="kt">int</span> <span class="n">TokPrec</span> <span class="o">=</span> <span class="n">GetTokPrecedence</span><span class="p">();</span>
+
+ <span class="c1">// If this is a binop that binds at least as tightly as the current binop,</span>
+ <span class="c1">// consume it, otherwise we are done.</span>
+ <span class="k">if</span> <span class="p">(</span><span class="n">TokPrec</span> <span class="o"><</span> <span class="n">ExprPrec</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">LHS</span><span class="p">;</span>
+
+ <span class="c1">// Okay, we know this is a binop.</span>
+ <span class="kt">int</span> <span class="n">BinOp</span> <span class="o">=</span> <span class="n">CurTok</span><span class="p">;</span>
+ <span class="n">getNextToken</span><span class="p">();</span> <span class="c1">// eat binop</span>
+
+ <span class="c1">// Parse the primary expression after the binary operator.</span>
+ <span class="k">auto</span> <span class="n">RHS</span> <span class="o">=</span> <span class="n">ParsePrimary</span><span class="p">();</span>
+ <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="n">RHS</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">nullptr</span><span class="p">;</span>
+
+ <span class="c1">// If BinOp binds less tightly with RHS than the operator after RHS, let</span>
+ <span class="c1">// the pending operator take RHS as its LHS.</span>
+ <span class="kt">int</span> <span class="n">NextPrec</span> <span class="o">=</span> <span class="n">GetTokPrecedence</span><span class="p">();</span>
+ <span class="k">if</span> <span class="p">(</span><span class="n">TokPrec</span> <span class="o"><</span> <span class="n">NextPrec</span><span class="p">)</span> <span class="p">{</span>
+ <span class="n">RHS</span> <span class="o">=</span> <span class="n">ParseBinOpRHS</span><span class="p">(</span><span class="n">TokPrec</span> <span class="o">+</span> <span class="mi">1</span><span class="p">,</span> <span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">RHS</span><span class="p">));</span>
+ <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="n">RHS</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">nullptr</span><span class="p">;</span>
+ <span class="p">}</span>
+
+ <span class="c1">// Merge LHS/RHS.</span>
+ <span class="n">LHS</span> <span class="o">=</span> <span class="n">helper</span><span class="o">::</span><span class="n">make_unique</span><span class="o"><</span><span class="n">BinaryExprAST</span><span class="o">></span><span class="p">(</span><span class="n">BinOp</span><span class="p">,</span> <span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">LHS</span><span class="p">),</span>
+ <span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">RHS</span><span class="p">));</span>
+ <span class="p">}</span>
+<span class="p">}</span>
+
+<span class="c1">/// expression</span>
+<span class="c1">/// ::= primary binoprhs</span>
+<span class="c1">///</span>
+<span class="k">static</span> <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">ExprAST</span><span class="o">></span> <span class="n">ParseExpression</span><span class="p">()</span> <span class="p">{</span>
+ <span class="k">auto</span> <span class="n">LHS</span> <span class="o">=</span> <span class="n">ParsePrimary</span><span class="p">();</span>
+ <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="n">LHS</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">nullptr</span><span class="p">;</span>
+
+ <span class="k">return</span> <span class="nf">ParseBinOpRHS</span><span class="p">(</span><span class="mi">0</span><span class="p">,</span> <span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">LHS</span><span class="p">));</span>
+<span class="p">}</span>
+
+<span class="c1">/// prototype</span>
+<span class="c1">/// ::= id '(' id* ')'</span>
+<span class="k">static</span> <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">PrototypeAST</span><span class="o">></span> <span class="n">ParsePrototype</span><span class="p">()</span> <span class="p">{</span>
+ <span class="k">if</span> <span class="p">(</span><span class="n">CurTok</span> <span class="o">!=</span> <span class="n">tok_identifier</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">ErrorP</span><span class="p">(</span><span class="s">"Expected function name in prototype"</span><span class="p">);</span>
+
+ <span class="n">std</span><span class="o">::</span><span class="n">string</span> <span class="n">FnName</span> <span class="o">=</span> <span class="n">IdentifierStr</span><span class="p">;</span>
+ <span class="n">getNextToken</span><span class="p">();</span>
+
+ <span class="k">if</span> <span class="p">(</span><span class="n">CurTok</span> <span class="o">!=</span> <span class="sc">'('</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">ErrorP</span><span class="p">(</span><span class="s">"Expected '(' in prototype"</span><span class="p">);</span>
+
+ <span class="n">std</span><span class="o">::</span><span class="n">vector</span><span class="o"><</span><span class="n">std</span><span class="o">::</span><span class="n">string</span><span class="o">></span> <span class="n">ArgNames</span><span class="p">;</span>
+ <span class="k">while</span> <span class="p">(</span><span class="n">getNextToken</span><span class="p">()</span> <span class="o">==</span> <span class="n">tok_identifier</span><span class="p">)</span>
+ <span class="n">ArgNames</span><span class="p">.</span><span class="n">push_back</span><span class="p">(</span><span class="n">IdentifierStr</span><span class="p">);</span>
+ <span class="k">if</span> <span class="p">(</span><span class="n">CurTok</span> <span class="o">!=</span> <span class="sc">')'</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">ErrorP</span><span class="p">(</span><span class="s">"Expected ')' in prototype"</span><span class="p">);</span>
+
+ <span class="c1">// success.</span>
+ <span class="n">getNextToken</span><span class="p">();</span> <span class="c1">// eat ')'.</span>
+
+ <span class="k">return</span> <span class="n">helper</span><span class="o">::</span><span class="n">make_unique</span><span class="o"><</span><span class="n">PrototypeAST</span><span class="o">></span><span class="p">(</span><span class="n">FnName</span><span class="p">,</span> <span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">ArgNames</span><span class="p">));</span>
+<span class="p">}</span>
+
+<span class="c1">/// definition ::= 'def' prototype expression</span>
+<span class="k">static</span> <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">FunctionAST</span><span class="o">></span> <span class="n">ParseDefinition</span><span class="p">()</span> <span class="p">{</span>
+ <span class="n">getNextToken</span><span class="p">();</span> <span class="c1">// eat def.</span>
+ <span class="k">auto</span> <span class="n">Proto</span> <span class="o">=</span> <span class="n">ParsePrototype</span><span class="p">();</span>
+ <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="n">Proto</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">nullptr</span><span class="p">;</span>
+
+ <span class="k">if</span> <span class="p">(</span><span class="k">auto</span> <span class="n">E</span> <span class="o">=</span> <span class="n">ParseExpression</span><span class="p">())</span>
+ <span class="k">return</span> <span class="n">helper</span><span class="o">::</span><span class="n">make_unique</span><span class="o"><</span><span class="n">FunctionAST</span><span class="o">></span><span class="p">(</span><span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">Proto</span><span class="p">),</span> <span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">E</span><span class="p">));</span>
+ <span class="k">return</span> <span class="n">nullptr</span><span class="p">;</span>
+<span class="p">}</span>
+
+<span class="c1">/// toplevelexpr ::= expression</span>
+<span class="k">static</span> <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">FunctionAST</span><span class="o">></span> <span class="n">ParseTopLevelExpr</span><span class="p">()</span> <span class="p">{</span>
+ <span class="k">if</span> <span class="p">(</span><span class="k">auto</span> <span class="n">E</span> <span class="o">=</span> <span class="n">ParseExpression</span><span class="p">())</span> <span class="p">{</span>
+ <span class="c1">// Make an anonymous proto.</span>
+ <span class="k">auto</span> <span class="n">Proto</span> <span class="o">=</span> <span class="n">helper</span><span class="o">::</span><span class="n">make_unique</span><span class="o"><</span><span class="n">PrototypeAST</span><span class="o">></span><span class="p">(</span><span class="s">"__anon_expr"</span><span class="p">,</span>
+ <span class="n">std</span><span class="o">::</span><span class="n">vector</span><span class="o"><</span><span class="n">std</span><span class="o">::</span><span class="n">string</span><span class="o">></span><span class="p">());</span>
+ <span class="k">return</span> <span class="n">helper</span><span class="o">::</span><span class="n">make_unique</span><span class="o"><</span><span class="n">FunctionAST</span><span class="o">></span><span class="p">(</span><span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">Proto</span><span class="p">),</span> <span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">E</span><span class="p">));</span>
+ <span class="p">}</span>
+ <span class="k">return</span> <span class="n">nullptr</span><span class="p">;</span>
+<span class="p">}</span>
+
+<span class="c1">/// external ::= 'extern' prototype</span>
+<span class="k">static</span> <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">PrototypeAST</span><span class="o">></span> <span class="n">ParseExtern</span><span class="p">()</span> <span class="p">{</span>
+ <span class="n">getNextToken</span><span class="p">();</span> <span class="c1">// eat extern.</span>
+ <span class="k">return</span> <span class="nf">ParsePrototype</span><span class="p">();</span>
+<span class="p">}</span>
+
+<span class="c1">//===----------------------------------------------------------------------===//</span>
+<span class="c1">// Top-Level parsing</span>
+<span class="c1">//===----------------------------------------------------------------------===//</span>
+
+<span class="k">static</span> <span class="kt">void</span> <span class="n">HandleDefinition</span><span class="p">()</span> <span class="p">{</span>
+ <span class="k">if</span> <span class="p">(</span><span class="n">ParseDefinition</span><span class="p">())</span> <span class="p">{</span>
+ <span class="n">fprintf</span><span class="p">(</span><span class="n">stderr</span><span class="p">,</span> <span class="s">"Parsed a function definition.</span><span class="se">\n</span><span class="s">"</span><span class="p">);</span>
+ <span class="p">}</span> <span class="k">else</span> <span class="p">{</span>
+ <span class="c1">// Skip token for error recovery.</span>
+ <span class="n">getNextToken</span><span class="p">();</span>
+ <span class="p">}</span>
+<span class="p">}</span>
+
+<span class="k">static</span> <span class="kt">void</span> <span class="n">HandleExtern</span><span class="p">()</span> <span class="p">{</span>
+ <span class="k">if</span> <span class="p">(</span><span class="n">ParseExtern</span><span class="p">())</span> <span class="p">{</span>
+ <span class="n">fprintf</span><span class="p">(</span><span class="n">stderr</span><span class="p">,</span> <span class="s">"Parsed an extern</span><span class="se">\n</span><span class="s">"</span><span class="p">);</span>
+ <span class="p">}</span> <span class="k">else</span> <span class="p">{</span>
+ <span class="c1">// Skip token for error recovery.</span>
+ <span class="n">getNextToken</span><span class="p">();</span>
+ <span class="p">}</span>
+<span class="p">}</span>
+
+<span class="k">static</span> <span class="kt">void</span> <span class="n">HandleTopLevelExpression</span><span class="p">()</span> <span class="p">{</span>
+ <span class="c1">// Evaluate a top-level expression into an anonymous function.</span>
+ <span class="k">if</span> <span class="p">(</span><span class="n">ParseTopLevelExpr</span><span class="p">())</span> <span class="p">{</span>
+ <span class="n">fprintf</span><span class="p">(</span><span class="n">stderr</span><span class="p">,</span> <span class="s">"Parsed a top-level expr</span><span class="se">\n</span><span class="s">"</span><span class="p">);</span>
+ <span class="p">}</span> <span class="k">else</span> <span class="p">{</span>
+ <span class="c1">// Skip token for error recovery.</span>
+ <span class="n">getNextToken</span><span class="p">();</span>
+ <span class="p">}</span>
+<span class="p">}</span>
+
+<span class="c1">/// top ::= definition | external | expression | ';'</span>
+<span class="k">static</span> <span class="kt">void</span> <span class="n">MainLoop</span><span class="p">()</span> <span class="p">{</span>
+ <span class="k">while</span> <span class="p">(</span><span class="mi">1</span><span class="p">)</span> <span class="p">{</span>
+ <span class="n">fprintf</span><span class="p">(</span><span class="n">stderr</span><span class="p">,</span> <span class="s">"ready> "</span><span class="p">);</span>
+ <span class="k">switch</span> <span class="p">(</span><span class="n">CurTok</span><span class="p">)</span> <span class="p">{</span>
+ <span class="k">case</span> <span class="n">tok_eof</span>:
+ <span class="k">return</span><span class="p">;</span>
+ <span class="k">case</span> <span class="sc">';'</span>: <span class="c1">// ignore top-level semicolons.</span>
+ <span class="n">getNextToken</span><span class="p">();</span>
+ <span class="k">break</span><span class="p">;</span>
+ <span class="k">case</span> <span class="n">tok_def</span>:
+ <span class="n">HandleDefinition</span><span class="p">();</span>
+ <span class="k">break</span><span class="p">;</span>
+ <span class="k">case</span> <span class="n">tok_extern</span>:
+ <span class="n">HandleExtern</span><span class="p">();</span>
+ <span class="k">break</span><span class="p">;</span>
+ <span class="nl">default:</span>
+ <span class="n">HandleTopLevelExpression</span><span class="p">();</span>
+ <span class="k">break</span><span class="p">;</span>
+ <span class="p">}</span>
+ <span class="p">}</span>
+<span class="p">}</span>
+
+<span class="c1">//===----------------------------------------------------------------------===//</span>
+<span class="c1">// Main driver code.</span>
+<span class="c1">//===----------------------------------------------------------------------===//</span>
+
+<span class="kt">int</span> <span class="n">main</span><span class="p">()</span> <span class="p">{</span>
+ <span class="c1">// Install standard binary operators.</span>
+ <span class="c1">// 1 is lowest precedence.</span>
+ <span class="n">BinopPrecedence</span><span class="p">[</span><span class="sc">'<'</span><span class="p">]</span> <span class="o">=</span> <span class="mi">10</span><span class="p">;</span>
+ <span class="n">BinopPrecedence</span><span class="p">[</span><span class="sc">'+'</span><span class="p">]</span> <span class="o">=</span> <span class="mi">20</span><span class="p">;</span>
+ <span class="n">BinopPrecedence</span><span class="p">[</span><span class="sc">'-'</span><span class="p">]</span> <span class="o">=</span> <span class="mi">20</span><span class="p">;</span>
+ <span class="n">BinopPrecedence</span><span class="p">[</span><span class="sc">'*'</span><span class="p">]</span> <span class="o">=</span> <span class="mi">40</span><span class="p">;</span> <span class="c1">// highest.</span>
+
+ <span class="c1">// Prime the first token.</span>
+ <span class="n">fprintf</span><span class="p">(</span><span class="n">stderr</span><span class="p">,</span> <span class="s">"ready> "</span><span class="p">);</span>
+ <span class="n">getNextToken</span><span class="p">();</span>
+
+ <span class="c1">// Run the main "interpreter loop" now.</span>
+ <span class="n">MainLoop</span><span class="p">();</span>
+
+ <span class="k">return</span> <span class="mi">0</span><span class="p">;</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+<p><a class="reference external" href="LangImpl3.html">Next: Implementing Code Generation to LLVM IR</a></p>
+</div>
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+
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+
+ <div class="section" id="kaleidoscope-code-generation-to-llvm-ir">
+<h1>3. Kaleidoscope: Code generation to LLVM IR<a class="headerlink" href="#kaleidoscope-code-generation-to-llvm-ir" title="Permalink to this headline">¶</a></h1>
+<div class="contents local topic" id="contents">
+<ul class="simple">
+<li><a class="reference internal" href="#chapter-3-introduction" id="id1">Chapter 3 Introduction</a></li>
+<li><a class="reference internal" href="#code-generation-setup" id="id2">Code Generation Setup</a></li>
+<li><a class="reference internal" href="#expression-code-generation" id="id3">Expression Code Generation</a></li>
+<li><a class="reference internal" href="#function-code-generation" id="id4">Function Code Generation</a></li>
+<li><a class="reference internal" href="#driver-changes-and-closing-thoughts" id="id5">Driver Changes and Closing Thoughts</a></li>
+<li><a class="reference internal" href="#full-code-listing" id="id6">Full Code Listing</a></li>
+</ul>
+</div>
+<div class="section" id="chapter-3-introduction">
+<h2><a class="toc-backref" href="#id1">3.1. Chapter 3 Introduction</a><a class="headerlink" href="#chapter-3-introduction" title="Permalink to this headline">¶</a></h2>
+<p>Welcome to Chapter 3 of the “<a class="reference external" href="index.html">Implementing a language with
+LLVM</a>” tutorial. This chapter shows you how to transform
+the <a class="reference external" href="LangImpl2.html">Abstract Syntax Tree</a>, built in Chapter 2, into
+LLVM IR. This will teach you a little bit about how LLVM does things, as
+well as demonstrate how easy it is to use. It’s much more work to build
+a lexer and parser than it is to generate LLVM IR code. :)</p>
+<p><strong>Please note</strong>: the code in this chapter and later require LLVM 3.7 or
+later. LLVM 3.6 and before will not work with it. Also note that you
+need to use a version of this tutorial that matches your LLVM release:
+If you are using an official LLVM release, use the version of the
+documentation included with your release or on the <a class="reference external" href="http://llvm.org/releases/">llvm.org releases
+page</a>.</p>
+</div>
+<div class="section" id="code-generation-setup">
+<h2><a class="toc-backref" href="#id2">3.2. Code Generation Setup</a><a class="headerlink" href="#code-generation-setup" title="Permalink to this headline">¶</a></h2>
+<p>In order to generate LLVM IR, we want some simple setup to get started.
+First we define virtual code generation (codegen) methods in each AST
+class:</p>
+<div class="highlight-c++"><div class="highlight"><pre><span class="c1">/// ExprAST - Base class for all expression nodes.</span>
+<span class="k">class</span> <span class="nc">ExprAST</span> <span class="p">{</span>
+<span class="nl">public:</span>
+ <span class="k">virtual</span> <span class="o">~</span><span class="n">ExprAST</span><span class="p">()</span> <span class="p">{}</span>
+ <span class="k">virtual</span> <span class="n">Value</span> <span class="o">*</span><span class="n">codegen</span><span class="p">()</span> <span class="o">=</span> <span class="mi">0</span><span class="p">;</span>
+<span class="p">};</span>
+
+<span class="c1">/// NumberExprAST - Expression class for numeric literals like "1.0".</span>
+<span class="k">class</span> <span class="nc">NumberExprAST</span> <span class="o">:</span> <span class="k">public</span> <span class="n">ExprAST</span> <span class="p">{</span>
+ <span class="kt">double</span> <span class="n">Val</span><span class="p">;</span>
+
+<span class="nl">public:</span>
+ <span class="n">NumberExprAST</span><span class="p">(</span><span class="kt">double</span> <span class="n">Val</span><span class="p">)</span> <span class="o">:</span> <span class="n">Val</span><span class="p">(</span><span class="n">Val</span><span class="p">)</span> <span class="p">{}</span>
+ <span class="k">virtual</span> <span class="n">Value</span> <span class="o">*</span><span class="n">codegen</span><span class="p">();</span>
+<span class="p">};</span>
+<span class="p">...</span>
+</pre></div>
+</div>
+<p>The codegen() method says to emit IR for that AST node along with all
+the things it depends on, and they all return an LLVM Value object.
+“Value” is the class used to represent a “<a class="reference external" href="http://en.wikipedia.org/wiki/Static_single_assignment_form">Static Single Assignment
+(SSA)</a>
+register” or “SSA value” in LLVM. The most distinct aspect of SSA values
+is that their value is computed as the related instruction executes, and
+it does not get a new value until (and if) the instruction re-executes.
+In other words, there is no way to “change” an SSA value. For more
+information, please read up on <a class="reference external" href="http://en.wikipedia.org/wiki/Static_single_assignment_form">Static Single
+Assignment</a>
+- the concepts are really quite natural once you grok them.</p>
+<p>Note that instead of adding virtual methods to the ExprAST class
+hierarchy, it could also make sense to use a <a class="reference external" href="http://en.wikipedia.org/wiki/Visitor_pattern">visitor
+pattern</a> or some other
+way to model this. Again, this tutorial won’t dwell on good software
+engineering practices: for our purposes, adding a virtual method is
+simplest.</p>
+<p>The second thing we want is an “Error” method like we used for the
+parser, which will be used to report errors found during code generation
+(for example, use of an undeclared parameter):</p>
+<div class="highlight-c++"><div class="highlight"><pre><span class="k">static</span> <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">Module</span><span class="o">></span> <span class="o">*</span><span class="n">TheModule</span><span class="p">;</span>
+<span class="k">static</span> <span class="n">IRBuilder</span><span class="o"><></span> <span class="n">Builder</span><span class="p">(</span><span class="n">getGlobalContext</span><span class="p">());</span>
+<span class="k">static</span> <span class="n">std</span><span class="o">::</span><span class="n">map</span><span class="o"><</span><span class="n">std</span><span class="o">::</span><span class="n">string</span><span class="p">,</span> <span class="n">Value</span><span class="o">*></span> <span class="n">NamedValues</span><span class="p">;</span>
+
+<span class="n">Value</span> <span class="o">*</span><span class="nf">ErrorV</span><span class="p">(</span><span class="k">const</span> <span class="kt">char</span> <span class="o">*</span><span class="n">Str</span><span class="p">)</span> <span class="p">{</span>
+ <span class="n">Error</span><span class="p">(</span><span class="n">Str</span><span class="p">);</span>
+ <span class="k">return</span> <span class="n">nullptr</span><span class="p">;</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+<p>The static variables will be used during code generation. <tt class="docutils literal"><span class="pre">TheModule</span></tt>
+is an LLVM construct that contains functions and global variables. In many
+ways, it is the top-level structure that the LLVM IR uses to contain code.
+It will own the memory for all of the IR that we generate, which is why
+the codegen() method returns a raw Value*, rather than a unique_ptr<Value>.</p>
+<p>The <tt class="docutils literal"><span class="pre">Builder</span></tt> object is a helper object that makes it easy to generate
+LLVM instructions. Instances of the
+<a class="reference external" href="http://llvm.org/doxygen/IRBuilder_8h-source.html">IRBuilder</a>
+class template keep track of the current place to insert instructions
+and has methods to create new instructions.</p>
+<p>The <tt class="docutils literal"><span class="pre">NamedValues</span></tt> map keeps track of which values are defined in the
+current scope and what their LLVM representation is. (In other words, it
+is a symbol table for the code). In this form of Kaleidoscope, the only
+things that can be referenced are function parameters. As such, function
+parameters will be in this map when generating code for their function
+body.</p>
+<p>With these basics in place, we can start talking about how to generate
+code for each expression. Note that this assumes that the <tt class="docutils literal"><span class="pre">Builder</span></tt>
+has been set up to generate code <em>into</em> something. For now, we’ll assume
+that this has already been done, and we’ll just use it to emit code.</p>
+</div>
+<div class="section" id="expression-code-generation">
+<h2><a class="toc-backref" href="#id3">3.3. Expression Code Generation</a><a class="headerlink" href="#expression-code-generation" title="Permalink to this headline">¶</a></h2>
+<p>Generating LLVM code for expression nodes is very straightforward: less
+than 45 lines of commented code for all four of our expression nodes.
+First we’ll do numeric literals:</p>
+<div class="highlight-c++"><div class="highlight"><pre><span class="n">Value</span> <span class="o">*</span><span class="n">NumberExprAST</span><span class="o">::</span><span class="n">codegen</span><span class="p">()</span> <span class="p">{</span>
+ <span class="k">return</span> <span class="n">ConstantFP</span><span class="o">::</span><span class="n">get</span><span class="p">(</span><span class="n">getGlobalContext</span><span class="p">(),</span> <span class="n">APFloat</span><span class="p">(</span><span class="n">Val</span><span class="p">));</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+<p>In the LLVM IR, numeric constants are represented with the
+<tt class="docutils literal"><span class="pre">ConstantFP</span></tt> class, which holds the numeric value in an <tt class="docutils literal"><span class="pre">APFloat</span></tt>
+internally (<tt class="docutils literal"><span class="pre">APFloat</span></tt> has the capability of holding floating point
+constants of Arbitrary Precision). This code basically just creates
+and returns a <tt class="docutils literal"><span class="pre">ConstantFP</span></tt>. Note that in the LLVM IR that constants
+are all uniqued together and shared. For this reason, the API uses the
+“foo::get(...)” idiom instead of “new foo(..)” or “foo::Create(..)”.</p>
+<div class="highlight-c++"><div class="highlight"><pre><span class="n">Value</span> <span class="o">*</span><span class="n">VariableExprAST</span><span class="o">::</span><span class="n">codegen</span><span class="p">()</span> <span class="p">{</span>
+ <span class="c1">// Look this variable up in the function.</span>
+ <span class="n">Value</span> <span class="o">*</span><span class="n">V</span> <span class="o">=</span> <span class="n">NamedValues</span><span class="p">[</span><span class="n">Name</span><span class="p">];</span>
+ <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="n">V</span><span class="p">)</span>
+ <span class="n">ErrorV</span><span class="p">(</span><span class="s">"Unknown variable name"</span><span class="p">);</span>
+ <span class="k">return</span> <span class="n">V</span><span class="p">;</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+<p>References to variables are also quite simple using LLVM. In the simple
+version of Kaleidoscope, we assume that the variable has already been
+emitted somewhere and its value is available. In practice, the only
+values that can be in the <tt class="docutils literal"><span class="pre">NamedValues</span></tt> map are function arguments.
+This code simply checks to see that the specified name is in the map (if
+not, an unknown variable is being referenced) and returns the value for
+it. In future chapters, we’ll add support for <a class="reference external" href="LangImpl5.html#for-loop-expression">loop induction
+variables</a> in the symbol table, and for <a class="reference external" href="LangImpl7.html#user-defined-local-variables">local
+variables</a>.</p>
+<div class="highlight-c++"><div class="highlight"><pre><span class="n">Value</span> <span class="o">*</span><span class="n">BinaryExprAST</span><span class="o">::</span><span class="n">codegen</span><span class="p">()</span> <span class="p">{</span>
+ <span class="n">Value</span> <span class="o">*</span><span class="n">L</span> <span class="o">=</span> <span class="n">LHS</span><span class="o">-></span><span class="n">codegen</span><span class="p">();</span>
+ <span class="n">Value</span> <span class="o">*</span><span class="n">R</span> <span class="o">=</span> <span class="n">RHS</span><span class="o">-></span><span class="n">codegen</span><span class="p">();</span>
+ <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="n">L</span> <span class="o">||</span> <span class="o">!</span><span class="n">R</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">nullptr</span><span class="p">;</span>
+
+ <span class="k">switch</span> <span class="p">(</span><span class="n">Op</span><span class="p">)</span> <span class="p">{</span>
+ <span class="k">case</span> <span class="sc">'+'</span>:
+ <span class="k">return</span> <span class="n">Builder</span><span class="p">.</span><span class="n">CreateFAdd</span><span class="p">(</span><span class="n">L</span><span class="p">,</span> <span class="n">R</span><span class="p">,</span> <span class="s">"addtmp"</span><span class="p">);</span>
+ <span class="k">case</span> <span class="sc">'-'</span>:
+ <span class="k">return</span> <span class="n">Builder</span><span class="p">.</span><span class="n">CreateFSub</span><span class="p">(</span><span class="n">L</span><span class="p">,</span> <span class="n">R</span><span class="p">,</span> <span class="s">"subtmp"</span><span class="p">);</span>
+ <span class="k">case</span> <span class="sc">'*'</span>:
+ <span class="k">return</span> <span class="n">Builder</span><span class="p">.</span><span class="n">CreateFMul</span><span class="p">(</span><span class="n">L</span><span class="p">,</span> <span class="n">R</span><span class="p">,</span> <span class="s">"multmp"</span><span class="p">);</span>
+ <span class="k">case</span> <span class="sc">'<'</span>:
+ <span class="n">L</span> <span class="o">=</span> <span class="n">Builder</span><span class="p">.</span><span class="n">CreateFCmpULT</span><span class="p">(</span><span class="n">L</span><span class="p">,</span> <span class="n">R</span><span class="p">,</span> <span class="s">"cmptmp"</span><span class="p">);</span>
+ <span class="c1">// Convert bool 0/1 to double 0.0 or 1.0</span>
+ <span class="k">return</span> <span class="n">Builder</span><span class="p">.</span><span class="n">CreateUIToFP</span><span class="p">(</span><span class="n">L</span><span class="p">,</span> <span class="n">Type</span><span class="o">::</span><span class="n">getDoubleTy</span><span class="p">(</span><span class="n">getGlobalContext</span><span class="p">()),</span>
+ <span class="s">"booltmp"</span><span class="p">);</span>
+ <span class="nl">default:</span>
+ <span class="k">return</span> <span class="nf">ErrorV</span><span class="p">(</span><span class="s">"invalid binary operator"</span><span class="p">);</span>
+ <span class="p">}</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+<p>Binary operators start to get more interesting. The basic idea here is
+that we recursively emit code for the left-hand side of the expression,
+then the right-hand side, then we compute the result of the binary
+expression. In this code, we do a simple switch on the opcode to create
+the right LLVM instruction.</p>
+<p>In the example above, the LLVM builder class is starting to show its
+value. IRBuilder knows where to insert the newly created instruction,
+all you have to do is specify what instruction to create (e.g. with
+<tt class="docutils literal"><span class="pre">CreateFAdd</span></tt>), which operands to use (<tt class="docutils literal"><span class="pre">L</span></tt> and <tt class="docutils literal"><span class="pre">R</span></tt> here) and
+optionally provide a name for the generated instruction.</p>
+<p>One nice thing about LLVM is that the name is just a hint. For instance,
+if the code above emits multiple “addtmp” variables, LLVM will
+automatically provide each one with an increasing, unique numeric
+suffix. Local value names for instructions are purely optional, but it
+makes it much easier to read the IR dumps.</p>
+<p><a class="reference external" href="../LangRef.html#instruction-reference">LLVM instructions</a> are constrained by strict
+rules: for example, the Left and Right operators of an <a class="reference external" href="../LangRef.html#add-instruction">add
+instruction</a> must have the same type, and the
+result type of the add must match the operand types. Because all values
+in Kaleidoscope are doubles, this makes for very simple code for add,
+sub and mul.</p>
+<p>On the other hand, LLVM specifies that the <a class="reference external" href="../LangRef.html#fcmp-instruction">fcmp
+instruction</a> always returns an ‘i1’ value (a
+one bit integer). The problem with this is that Kaleidoscope wants the
+value to be a 0.0 or 1.0 value. In order to get these semantics, we
+combine the fcmp instruction with a <a class="reference external" href="../LangRef.html#uitofp-to-instruction">uitofp
+instruction</a>. This instruction converts its
+input integer into a floating point value by treating the input as an
+unsigned value. In contrast, if we used the <a class="reference external" href="../LangRef.html#sitofp-to-instruction">sitofp
+instruction</a>, the Kaleidoscope ‘<’ operator
+would return 0.0 and -1.0, depending on the input value.</p>
+<div class="highlight-c++"><div class="highlight"><pre><span class="n">Value</span> <span class="o">*</span><span class="n">CallExprAST</span><span class="o">::</span><span class="n">codegen</span><span class="p">()</span> <span class="p">{</span>
+ <span class="c1">// Look up the name in the global module table.</span>
+ <span class="n">Function</span> <span class="o">*</span><span class="n">CalleeF</span> <span class="o">=</span> <span class="n">TheModule</span><span class="o">-></span><span class="n">getFunction</span><span class="p">(</span><span class="n">Callee</span><span class="p">);</span>
+ <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="n">CalleeF</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">ErrorV</span><span class="p">(</span><span class="s">"Unknown function referenced"</span><span class="p">);</span>
+
+ <span class="c1">// If argument mismatch error.</span>
+ <span class="k">if</span> <span class="p">(</span><span class="n">CalleeF</span><span class="o">-></span><span class="n">arg_size</span><span class="p">()</span> <span class="o">!=</span> <span class="n">Args</span><span class="p">.</span><span class="n">size</span><span class="p">())</span>
+ <span class="k">return</span> <span class="n">ErrorV</span><span class="p">(</span><span class="s">"Incorrect # arguments passed"</span><span class="p">);</span>
+
+ <span class="n">std</span><span class="o">::</span><span class="n">vector</span><span class="o"><</span><span class="n">Value</span> <span class="o">*></span> <span class="n">ArgsV</span><span class="p">;</span>
+ <span class="k">for</span> <span class="p">(</span><span class="kt">unsigned</span> <span class="n">i</span> <span class="o">=</span> <span class="mi">0</span><span class="p">,</span> <span class="n">e</span> <span class="o">=</span> <span class="n">Args</span><span class="p">.</span><span class="n">size</span><span class="p">();</span> <span class="n">i</span> <span class="o">!=</span> <span class="n">e</span><span class="p">;</span> <span class="o">++</span><span class="n">i</span><span class="p">)</span> <span class="p">{</span>
+ <span class="n">ArgsV</span><span class="p">.</span><span class="n">push_back</span><span class="p">(</span><span class="n">Args</span><span class="p">[</span><span class="n">i</span><span class="p">]</span><span class="o">-></span><span class="n">codegen</span><span class="p">());</span>
+ <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="n">ArgsV</span><span class="p">.</span><span class="n">back</span><span class="p">())</span>
+ <span class="k">return</span> <span class="n">nullptr</span><span class="p">;</span>
+ <span class="p">}</span>
+
+ <span class="k">return</span> <span class="n">Builder</span><span class="p">.</span><span class="n">CreateCall</span><span class="p">(</span><span class="n">CalleeF</span><span class="p">,</span> <span class="n">ArgsV</span><span class="p">,</span> <span class="s">"calltmp"</span><span class="p">);</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+<p>Code generation for function calls is quite straightforward with LLVM. The code
+above initially does a function name lookup in the LLVM Module’s symbol table.
+Recall that the LLVM Module is the container that holds the functions we are
+JIT’ing. By giving each function the same name as what the user specifies, we
+can use the LLVM symbol table to resolve function names for us.</p>
+<p>Once we have the function to call, we recursively codegen each argument
+that is to be passed in, and create an LLVM <a class="reference external" href="../LangRef.html#call-instruction">call
+instruction</a>. Note that LLVM uses the native C
+calling conventions by default, allowing these calls to also call into
+standard library functions like “sin” and “cos”, with no additional
+effort.</p>
+<p>This wraps up our handling of the four basic expressions that we have so
+far in Kaleidoscope. Feel free to go in and add some more. For example,
+by browsing the <a class="reference external" href="../LangRef.html">LLVM language reference</a> you’ll find
+several other interesting instructions that are really easy to plug into
+our basic framework.</p>
+</div>
+<div class="section" id="function-code-generation">
+<h2><a class="toc-backref" href="#id4">3.4. Function Code Generation</a><a class="headerlink" href="#function-code-generation" title="Permalink to this headline">¶</a></h2>
+<p>Code generation for prototypes and functions must handle a number of
+details, which make their code less beautiful than expression code
+generation, but allows us to illustrate some important points. First,
+lets talk about code generation for prototypes: they are used both for
+function bodies and external function declarations. The code starts
+with:</p>
+<div class="highlight-c++"><div class="highlight"><pre><span class="n">Function</span> <span class="o">*</span><span class="n">PrototypeAST</span><span class="o">::</span><span class="n">codegen</span><span class="p">()</span> <span class="p">{</span>
+ <span class="c1">// Make the function type: double(double,double) etc.</span>
+ <span class="n">std</span><span class="o">::</span><span class="n">vector</span><span class="o"><</span><span class="n">Type</span><span class="o">*></span> <span class="n">Doubles</span><span class="p">(</span><span class="n">Args</span><span class="p">.</span><span class="n">size</span><span class="p">(),</span>
+ <span class="n">Type</span><span class="o">::</span><span class="n">getDoubleTy</span><span class="p">(</span><span class="n">getGlobalContext</span><span class="p">()));</span>
+ <span class="n">FunctionType</span> <span class="o">*</span><span class="n">FT</span> <span class="o">=</span>
+ <span class="n">FunctionType</span><span class="o">::</span><span class="n">get</span><span class="p">(</span><span class="n">Type</span><span class="o">::</span><span class="n">getDoubleTy</span><span class="p">(</span><span class="n">getGlobalContext</span><span class="p">()),</span> <span class="n">Doubles</span><span class="p">,</span> <span class="nb">false</span><span class="p">);</span>
+
+ <span class="n">Function</span> <span class="o">*</span><span class="n">F</span> <span class="o">=</span>
+ <span class="n">Function</span><span class="o">::</span><span class="n">Create</span><span class="p">(</span><span class="n">FT</span><span class="p">,</span> <span class="n">Function</span><span class="o">::</span><span class="n">ExternalLinkage</span><span class="p">,</span> <span class="n">Name</span><span class="p">,</span> <span class="n">TheModule</span><span class="p">);</span>
+</pre></div>
+</div>
+<p>This code packs a lot of power into a few lines. Note first that this
+function returns a “Function*” instead of a “Value*”. Because a
+“prototype” really talks about the external interface for a function
+(not the value computed by an expression), it makes sense for it to
+return the LLVM Function it corresponds to when codegen’d.</p>
+<p>The call to <tt class="docutils literal"><span class="pre">FunctionType::get</span></tt> creates the <tt class="docutils literal"><span class="pre">FunctionType</span></tt> that
+should be used for a given Prototype. Since all function arguments in
+Kaleidoscope are of type double, the first line creates a vector of “N”
+LLVM double types. It then uses the <tt class="docutils literal"><span class="pre">Functiontype::get</span></tt> method to
+create a function type that takes “N” doubles as arguments, returns one
+double as a result, and that is not vararg (the false parameter
+indicates this). Note that Types in LLVM are uniqued just like Constants
+are, so you don’t “new” a type, you “get” it.</p>
+<p>The final line above actually creates the IR Function corresponding to
+the Prototype. This indicates the type, linkage and name to use, as
+well as which module to insert into. “<a class="reference external" href="../LangRef.html#linkage">external
+linkage</a>” means that the function may be
+defined outside the current module and/or that it is callable by
+functions outside the module. The Name passed in is the name the user
+specified: since “<tt class="docutils literal"><span class="pre">TheModule</span></tt>” is specified, this name is registered
+in “<tt class="docutils literal"><span class="pre">TheModule</span></tt>“s symbol table.</p>
+<div class="highlight-c++"><div class="highlight"><pre><span class="c1">// Set names for all arguments.</span>
+<span class="kt">unsigned</span> <span class="n">Idx</span> <span class="o">=</span> <span class="mi">0</span><span class="p">;</span>
+<span class="k">for</span> <span class="p">(</span><span class="k">auto</span> <span class="o">&</span><span class="n">Arg</span> <span class="o">:</span> <span class="n">F</span><span class="o">-></span><span class="n">args</span><span class="p">())</span>
+ <span class="n">Arg</span><span class="p">.</span><span class="n">setName</span><span class="p">(</span><span class="n">Args</span><span class="p">[</span><span class="n">Idx</span><span class="o">++</span><span class="p">]);</span>
+
+<span class="k">return</span> <span class="n">F</span><span class="p">;</span>
+</pre></div>
+</div>
+<p>Finally, we set the name of each of the function’s arguments according to the
+names given in the Prototype. This step isn’t strictly necessary, but keeping
+the names consistent makes the IR more readable, and allows subsequent code to
+refer directly to the arguments for their names, rather than having to look up
+them up in the Prototype AST.</p>
+<p>At this point we have a function prototype with no body. This is how LLVM IR
+represents function declarations. For extern statements in Kaleidoscope, this
+is as far as we need to go. For function definitions however, we need to
+codegen and attach a function body.</p>
+<div class="highlight-c++"><div class="highlight"><pre><span class="n">Function</span> <span class="o">*</span><span class="n">FunctionAST</span><span class="o">::</span><span class="n">codegen</span><span class="p">()</span> <span class="p">{</span>
+ <span class="c1">// First, check for an existing function from a previous 'extern' declaration.</span>
+ <span class="n">Function</span> <span class="o">*</span><span class="n">TheFunction</span> <span class="o">=</span> <span class="n">TheModule</span><span class="o">-></span><span class="n">getFunction</span><span class="p">(</span><span class="n">Proto</span><span class="o">-></span><span class="n">getName</span><span class="p">());</span>
+
+ <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="n">TheFunction</span><span class="p">)</span>
+ <span class="n">TheFunction</span> <span class="o">=</span> <span class="n">Proto</span><span class="o">-></span><span class="n">codegen</span><span class="p">();</span>
+
+ <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="n">TheFunction</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">nullptr</span><span class="p">;</span>
+
+ <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="n">TheFunction</span><span class="o">-></span><span class="n">empty</span><span class="p">())</span>
+ <span class="k">return</span> <span class="p">(</span><span class="n">Function</span><span class="o">*</span><span class="p">)</span><span class="n">ErrorV</span><span class="p">(</span><span class="s">"Function cannot be redefined."</span><span class="p">);</span>
+</pre></div>
+</div>
+<p>For function definitions, we start by searching TheModule’s symbol table for an
+existing version of this function, in case one has already been created using an
+‘extern’ statement. If Module::getFunction returns null then no previous version
+exists, so we’ll codegen one from the Prototype. In either case, we want to
+assert that the function is empty (i.e. has no body yet) before we start.</p>
+<div class="highlight-c++"><div class="highlight"><pre><span class="c1">// Create a new basic block to start insertion into.</span>
+<span class="n">BasicBlock</span> <span class="o">*</span><span class="n">BB</span> <span class="o">=</span> <span class="n">BasicBlock</span><span class="o">::</span><span class="n">Create</span><span class="p">(</span><span class="n">getGlobalContext</span><span class="p">(),</span> <span class="s">"entry"</span><span class="p">,</span> <span class="n">TheFunction</span><span class="p">);</span>
+<span class="n">Builder</span><span class="p">.</span><span class="n">SetInsertPoint</span><span class="p">(</span><span class="n">BB</span><span class="p">);</span>
+
+<span class="c1">// Record the function arguments in the NamedValues map.</span>
+<span class="n">NamedValues</span><span class="p">.</span><span class="n">clear</span><span class="p">();</span>
+<span class="k">for</span> <span class="p">(</span><span class="k">auto</span> <span class="o">&</span><span class="n">Arg</span> <span class="o">:</span> <span class="n">TheFunction</span><span class="o">-></span><span class="n">args</span><span class="p">())</span>
+ <span class="n">NamedValues</span><span class="p">[</span><span class="n">Arg</span><span class="p">.</span><span class="n">getName</span><span class="p">()]</span> <span class="o">=</span> <span class="o">&</span><span class="n">Arg</span><span class="p">;</span>
+</pre></div>
+</div>
+<p>Now we get to the point where the <tt class="docutils literal"><span class="pre">Builder</span></tt> is set up. The first line
+creates a new <a class="reference external" href="http://en.wikipedia.org/wiki/Basic_block">basic block</a>
+(named “entry”), which is inserted into <tt class="docutils literal"><span class="pre">TheFunction</span></tt>. The second line
+then tells the builder that new instructions should be inserted into the
+end of the new basic block. Basic blocks in LLVM are an important part
+of functions that define the <a class="reference external" href="http://en.wikipedia.org/wiki/Control_flow_graph">Control Flow
+Graph</a>. Since we
+don’t have any control flow, our functions will only contain one block
+at this point. We’ll fix this in <a class="reference external" href="LangImpl5.html">Chapter 5</a> :).</p>
+<p>Next we add the function arguments to the NamedValues map (after first clearing
+it out) so that they’re accessible to <tt class="docutils literal"><span class="pre">VariableExprAST</span></tt> nodes.</p>
+<div class="highlight-c++"><div class="highlight"><pre><span class="k">if</span> <span class="p">(</span><span class="n">Value</span> <span class="o">*</span><span class="n">RetVal</span> <span class="o">=</span> <span class="n">Body</span><span class="o">-></span><span class="n">codegen</span><span class="p">())</span> <span class="p">{</span>
+ <span class="c1">// Finish off the function.</span>
+ <span class="n">Builder</span><span class="p">.</span><span class="n">CreateRet</span><span class="p">(</span><span class="n">RetVal</span><span class="p">);</span>
+
+ <span class="c1">// Validate the generated code, checking for consistency.</span>
+ <span class="n">verifyFunction</span><span class="p">(</span><span class="o">*</span><span class="n">TheFunction</span><span class="p">);</span>
+
+ <span class="k">return</span> <span class="n">TheFunction</span><span class="p">;</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+<p>Once the insertion point has been set up and the NamedValues map populated,
+we call the <tt class="docutils literal"><span class="pre">codegen()</span></tt> method for the root expression of the function. If no
+error happens, this emits code to compute the expression into the entry block
+and returns the value that was computed. Assuming no error, we then create an
+LLVM <a class="reference external" href="../LangRef.html#ret-instruction">ret instruction</a>, which completes the function.
+Once the function is built, we call <tt class="docutils literal"><span class="pre">verifyFunction</span></tt>, which is
+provided by LLVM. This function does a variety of consistency checks on
+the generated code, to determine if our compiler is doing everything
+right. Using this is important: it can catch a lot of bugs. Once the
+function is finished and validated, we return it.</p>
+<div class="highlight-c++"><div class="highlight"><pre> <span class="c1">// Error reading body, remove function.</span>
+ <span class="n">TheFunction</span><span class="o">-></span><span class="n">eraseFromParent</span><span class="p">();</span>
+ <span class="k">return</span> <span class="n">nullptr</span><span class="p">;</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+<p>The only piece left here is handling of the error case. For simplicity,
+we handle this by merely deleting the function we produced with the
+<tt class="docutils literal"><span class="pre">eraseFromParent</span></tt> method. This allows the user to redefine a function
+that they incorrectly typed in before: if we didn’t delete it, it would
+live in the symbol table, with a body, preventing future redefinition.</p>
+<p>This code does have a bug, though: If the <tt class="docutils literal"><span class="pre">FunctionAST::codegen()</span></tt> method
+finds an existing IR Function, it does not validate its signature against the
+definition’s own prototype. This means that an earlier ‘extern’ declaration will
+take precedence over the function definition’s signature, which can cause
+codegen to fail, for instance if the function arguments are named differently.
+There are a number of ways to fix this bug, see what you can come up with! Here
+is a testcase:</p>
+<div class="highlight-python"><div class="highlight"><pre>extern foo(a); # ok, defines foo.
+def foo(b) b; # Error: Unknown variable name. (decl using 'a' takes precedence).
+</pre></div>
+</div>
+</div>
+<div class="section" id="driver-changes-and-closing-thoughts">
+<h2><a class="toc-backref" href="#id5">3.5. Driver Changes and Closing Thoughts</a><a class="headerlink" href="#driver-changes-and-closing-thoughts" title="Permalink to this headline">¶</a></h2>
+<p>For now, code generation to LLVM doesn’t really get us much, except that
+we can look at the pretty IR calls. The sample code inserts calls to
+codegen into the “<tt class="docutils literal"><span class="pre">HandleDefinition</span></tt>”, “<tt class="docutils literal"><span class="pre">HandleExtern</span></tt>” etc
+functions, and then dumps out the LLVM IR. This gives a nice way to look
+at the LLVM IR for simple functions. For example:</p>
+<div class="highlight-python"><div class="highlight"><pre>ready> 4+5;
+Read top-level expression:
+define double @0() {
+entry:
+ ret double 9.000000e+00
+}
+</pre></div>
+</div>
+<p>Note how the parser turns the top-level expression into anonymous
+functions for us. This will be handy when we add <a class="reference external" href="LangImpl4.html#adding-a-jit-compiler">JIT
+support</a> in the next chapter. Also note that the
+code is very literally transcribed, no optimizations are being performed
+except simple constant folding done by IRBuilder. We will <a class="reference external" href="LangImpl4.html#trivial-constant-folding">add
+optimizations</a> explicitly in the next
+chapter.</p>
+<div class="highlight-python"><div class="highlight"><pre>ready> def foo(a b) a*a + 2*a*b + b*b;
+Read function definition:
+define double @foo(double %a, double %b) {
+entry:
+ %multmp = fmul double %a, %a
+ %multmp1 = fmul double 2.000000e+00, %a
+ %multmp2 = fmul double %multmp1, %b
+ %addtmp = fadd double %multmp, %multmp2
+ %multmp3 = fmul double %b, %b
+ %addtmp4 = fadd double %addtmp, %multmp3
+ ret double %addtmp4
+}
+</pre></div>
+</div>
+<p>This shows some simple arithmetic. Notice the striking similarity to the
+LLVM builder calls that we use to create the instructions.</p>
+<div class="highlight-python"><div class="highlight"><pre>ready> def bar(a) foo(a, 4.0) + bar(31337);
+Read function definition:
+define double @bar(double %a) {
+entry:
+ %calltmp = call double @foo(double %a, double 4.000000e+00)
+ %calltmp1 = call double @bar(double 3.133700e+04)
+ %addtmp = fadd double %calltmp, %calltmp1
+ ret double %addtmp
+}
+</pre></div>
+</div>
+<p>This shows some function calls. Note that this function will take a long
+time to execute if you call it. In the future we’ll add conditional
+control flow to actually make recursion useful :).</p>
+<div class="highlight-python"><div class="highlight"><pre>ready> extern cos(x);
+Read extern:
+declare double @cos(double)
+
+ready> cos(1.234);
+Read top-level expression:
+define double @1() {
+entry:
+ %calltmp = call double @cos(double 1.234000e+00)
+ ret double %calltmp
+}
+</pre></div>
+</div>
+<p>This shows an extern for the libm “cos” function, and a call to it.</p>
+<div class="highlight-python"><div class="highlight"><pre>ready> ^D
+; ModuleID = 'my cool jit'
+
+define double @0() {
+entry:
+ %addtmp = fadd double 4.000000e+00, 5.000000e+00
+ ret double %addtmp
+}
+
+define double @foo(double %a, double %b) {
+entry:
+ %multmp = fmul double %a, %a
+ %multmp1 = fmul double 2.000000e+00, %a
+ %multmp2 = fmul double %multmp1, %b
+ %addtmp = fadd double %multmp, %multmp2
+ %multmp3 = fmul double %b, %b
+ %addtmp4 = fadd double %addtmp, %multmp3
+ ret double %addtmp4
+}
+
+define double @bar(double %a) {
+entry:
+ %calltmp = call double @foo(double %a, double 4.000000e+00)
+ %calltmp1 = call double @bar(double 3.133700e+04)
+ %addtmp = fadd double %calltmp, %calltmp1
+ ret double %addtmp
+}
+
+declare double @cos(double)
+
+define double @1() {
+entry:
+ %calltmp = call double @cos(double 1.234000e+00)
+ ret double %calltmp
+}
+</pre></div>
+</div>
+<p>When you quit the current demo, it dumps out the IR for the entire
+module generated. Here you can see the big picture with all the
+functions referencing each other.</p>
+<p>This wraps up the third chapter of the Kaleidoscope tutorial. Up next,
+we’ll describe how to <a class="reference external" href="LangImpl4.html">add JIT codegen and optimizer
+support</a> to this so we can actually start running
+code!</p>
+</div>
+<div class="section" id="full-code-listing">
+<h2><a class="toc-backref" href="#id6">3.6. Full Code Listing</a><a class="headerlink" href="#full-code-listing" title="Permalink to this headline">¶</a></h2>
+<p>Here is the complete code listing for our running example, enhanced with
+the LLVM code generator. Because this uses the LLVM libraries, we need
+to link them in. To do this, we use the
+<a class="reference external" href="http://llvm.org/cmds/llvm-config.html">llvm-config</a> tool to inform
+our makefile/command line about which options to use:</p>
+<div class="highlight-bash"><div class="highlight"><pre><span class="c"># Compile</span>
+clang++ -g -O3 toy.cpp <span class="sb">`</span>llvm-config --cxxflags --ldflags --system-libs --libs core<span class="sb">`</span> -o toy
+<span class="c"># Run</span>
+./toy
+</pre></div>
+</div>
+<p>Here is the code:</p>
+<div class="highlight-c++"><div class="highlight"><pre><span class="cp">#include "llvm/ADT/STLExtras.h"</span>
+<span class="cp">#include "llvm/IR/IRBuilder.h"</span>
+<span class="cp">#include "llvm/IR/LLVMContext.h"</span>
+<span class="cp">#include "llvm/IR/Module.h"</span>
+<span class="cp">#include "llvm/IR/Verifier.h"</span>
+<span class="cp">#include <cctype></span>
+<span class="cp">#include <cstdio></span>
+<span class="cp">#include <map></span>
+<span class="cp">#include <string></span>
+<span class="cp">#include <vector></span>
+
+<span class="k">using</span> <span class="k">namespace</span> <span class="n">llvm</span><span class="p">;</span>
+
+<span class="c1">//===----------------------------------------------------------------------===//</span>
+<span class="c1">// Lexer</span>
+<span class="c1">//===----------------------------------------------------------------------===//</span>
+
+<span class="c1">// The lexer returns tokens [0-255] if it is an unknown character, otherwise one</span>
+<span class="c1">// of these for known things.</span>
+<span class="k">enum</span> <span class="n">Token</span> <span class="p">{</span>
+ <span class="n">tok_eof</span> <span class="o">=</span> <span class="o">-</span><span class="mi">1</span><span class="p">,</span>
+
+ <span class="c1">// commands</span>
+ <span class="n">tok_def</span> <span class="o">=</span> <span class="o">-</span><span class="mi">2</span><span class="p">,</span>
+ <span class="n">tok_extern</span> <span class="o">=</span> <span class="o">-</span><span class="mi">3</span><span class="p">,</span>
+
+ <span class="c1">// primary</span>
+ <span class="n">tok_identifier</span> <span class="o">=</span> <span class="o">-</span><span class="mi">4</span><span class="p">,</span>
+ <span class="n">tok_number</span> <span class="o">=</span> <span class="o">-</span><span class="mi">5</span>
+<span class="p">};</span>
+
+<span class="k">static</span> <span class="n">std</span><span class="o">::</span><span class="n">string</span> <span class="n">IdentifierStr</span><span class="p">;</span> <span class="c1">// Filled in if tok_identifier</span>
+<span class="k">static</span> <span class="kt">double</span> <span class="n">NumVal</span><span class="p">;</span> <span class="c1">// Filled in if tok_number</span>
+
+<span class="c1">/// gettok - Return the next token from standard input.</span>
+<span class="k">static</span> <span class="kt">int</span> <span class="nf">gettok</span><span class="p">()</span> <span class="p">{</span>
+ <span class="k">static</span> <span class="kt">int</span> <span class="n">LastChar</span> <span class="o">=</span> <span class="sc">' '</span><span class="p">;</span>
+
+ <span class="c1">// Skip any whitespace.</span>
+ <span class="k">while</span> <span class="p">(</span><span class="n">isspace</span><span class="p">(</span><span class="n">LastChar</span><span class="p">))</span>
+ <span class="n">LastChar</span> <span class="o">=</span> <span class="n">getchar</span><span class="p">();</span>
+
+ <span class="k">if</span> <span class="p">(</span><span class="n">isalpha</span><span class="p">(</span><span class="n">LastChar</span><span class="p">))</span> <span class="p">{</span> <span class="c1">// identifier: [a-zA-Z][a-zA-Z0-9]*</span>
+ <span class="n">IdentifierStr</span> <span class="o">=</span> <span class="n">LastChar</span><span class="p">;</span>
+ <span class="k">while</span> <span class="p">(</span><span class="n">isalnum</span><span class="p">((</span><span class="n">LastChar</span> <span class="o">=</span> <span class="n">getchar</span><span class="p">())))</span>
+ <span class="n">IdentifierStr</span> <span class="o">+=</span> <span class="n">LastChar</span><span class="p">;</span>
+
+ <span class="k">if</span> <span class="p">(</span><span class="n">IdentifierStr</span> <span class="o">==</span> <span class="s">"def"</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">tok_def</span><span class="p">;</span>
+ <span class="k">if</span> <span class="p">(</span><span class="n">IdentifierStr</span> <span class="o">==</span> <span class="s">"extern"</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">tok_extern</span><span class="p">;</span>
+ <span class="k">return</span> <span class="n">tok_identifier</span><span class="p">;</span>
+ <span class="p">}</span>
+
+ <span class="k">if</span> <span class="p">(</span><span class="n">isdigit</span><span class="p">(</span><span class="n">LastChar</span><span class="p">)</span> <span class="o">||</span> <span class="n">LastChar</span> <span class="o">==</span> <span class="sc">'.'</span><span class="p">)</span> <span class="p">{</span> <span class="c1">// Number: [0-9.]+</span>
+ <span class="n">std</span><span class="o">::</span><span class="n">string</span> <span class="n">NumStr</span><span class="p">;</span>
+ <span class="k">do</span> <span class="p">{</span>
+ <span class="n">NumStr</span> <span class="o">+=</span> <span class="n">LastChar</span><span class="p">;</span>
+ <span class="n">LastChar</span> <span class="o">=</span> <span class="n">getchar</span><span class="p">();</span>
+ <span class="p">}</span> <span class="k">while</span> <span class="p">(</span><span class="n">isdigit</span><span class="p">(</span><span class="n">LastChar</span><span class="p">)</span> <span class="o">||</span> <span class="n">LastChar</span> <span class="o">==</span> <span class="sc">'.'</span><span class="p">);</span>
+
+ <span class="n">NumVal</span> <span class="o">=</span> <span class="n">strtod</span><span class="p">(</span><span class="n">NumStr</span><span class="p">.</span><span class="n">c_str</span><span class="p">(),</span> <span class="n">nullptr</span><span class="p">);</span>
+ <span class="k">return</span> <span class="n">tok_number</span><span class="p">;</span>
+ <span class="p">}</span>
+
+ <span class="k">if</span> <span class="p">(</span><span class="n">LastChar</span> <span class="o">==</span> <span class="sc">'#'</span><span class="p">)</span> <span class="p">{</span>
+ <span class="c1">// Comment until end of line.</span>
+ <span class="k">do</span>
+ <span class="n">LastChar</span> <span class="o">=</span> <span class="n">getchar</span><span class="p">();</span>
+ <span class="k">while</span> <span class="p">(</span><span class="n">LastChar</span> <span class="o">!=</span> <span class="n">EOF</span> <span class="o">&&</span> <span class="n">LastChar</span> <span class="o">!=</span> <span class="sc">'\n'</span> <span class="o">&&</span> <span class="n">LastChar</span> <span class="o">!=</span> <span class="sc">'\r'</span><span class="p">);</span>
+
+ <span class="k">if</span> <span class="p">(</span><span class="n">LastChar</span> <span class="o">!=</span> <span class="n">EOF</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">gettok</span><span class="p">();</span>
+ <span class="p">}</span>
+
+ <span class="c1">// Check for end of file. Don't eat the EOF.</span>
+ <span class="k">if</span> <span class="p">(</span><span class="n">LastChar</span> <span class="o">==</span> <span class="n">EOF</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">tok_eof</span><span class="p">;</span>
+
+ <span class="c1">// Otherwise, just return the character as its ascii value.</span>
+ <span class="kt">int</span> <span class="n">ThisChar</span> <span class="o">=</span> <span class="n">LastChar</span><span class="p">;</span>
+ <span class="n">LastChar</span> <span class="o">=</span> <span class="n">getchar</span><span class="p">();</span>
+ <span class="k">return</span> <span class="n">ThisChar</span><span class="p">;</span>
+<span class="p">}</span>
+
+<span class="c1">//===----------------------------------------------------------------------===//</span>
+<span class="c1">// Abstract Syntax Tree (aka Parse Tree)</span>
+<span class="c1">//===----------------------------------------------------------------------===//</span>
+<span class="k">namespace</span> <span class="p">{</span>
+<span class="c1">/// ExprAST - Base class for all expression nodes.</span>
+<span class="k">class</span> <span class="nc">ExprAST</span> <span class="p">{</span>
+<span class="nl">public:</span>
+ <span class="k">virtual</span> <span class="o">~</span><span class="n">ExprAST</span><span class="p">()</span> <span class="p">{}</span>
+ <span class="k">virtual</span> <span class="n">Value</span> <span class="o">*</span><span class="n">codegen</span><span class="p">()</span> <span class="o">=</span> <span class="mi">0</span><span class="p">;</span>
+<span class="p">};</span>
+
+<span class="c1">/// NumberExprAST - Expression class for numeric literals like "1.0".</span>
+<span class="k">class</span> <span class="nc">NumberExprAST</span> <span class="o">:</span> <span class="k">public</span> <span class="n">ExprAST</span> <span class="p">{</span>
+ <span class="kt">double</span> <span class="n">Val</span><span class="p">;</span>
+
+<span class="nl">public:</span>
+ <span class="n">NumberExprAST</span><span class="p">(</span><span class="kt">double</span> <span class="n">Val</span><span class="p">)</span> <span class="o">:</span> <span class="n">Val</span><span class="p">(</span><span class="n">Val</span><span class="p">)</span> <span class="p">{}</span>
+ <span class="n">Value</span> <span class="o">*</span><span class="n">codegen</span><span class="p">()</span> <span class="n">override</span><span class="p">;</span>
+<span class="p">};</span>
+
+<span class="c1">/// VariableExprAST - Expression class for referencing a variable, like "a".</span>
+<span class="k">class</span> <span class="nc">VariableExprAST</span> <span class="o">:</span> <span class="k">public</span> <span class="n">ExprAST</span> <span class="p">{</span>
+ <span class="n">std</span><span class="o">::</span><span class="n">string</span> <span class="n">Name</span><span class="p">;</span>
+
+<span class="nl">public:</span>
+ <span class="n">VariableExprAST</span><span class="p">(</span><span class="k">const</span> <span class="n">std</span><span class="o">::</span><span class="n">string</span> <span class="o">&</span><span class="n">Name</span><span class="p">)</span> <span class="o">:</span> <span class="n">Name</span><span class="p">(</span><span class="n">Name</span><span class="p">)</span> <span class="p">{}</span>
+ <span class="n">Value</span> <span class="o">*</span><span class="n">codegen</span><span class="p">()</span> <span class="n">override</span><span class="p">;</span>
+<span class="p">};</span>
+
+<span class="c1">/// BinaryExprAST - Expression class for a binary operator.</span>
+<span class="k">class</span> <span class="nc">BinaryExprAST</span> <span class="o">:</span> <span class="k">public</span> <span class="n">ExprAST</span> <span class="p">{</span>
+ <span class="kt">char</span> <span class="n">Op</span><span class="p">;</span>
+ <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">ExprAST</span><span class="o">></span> <span class="n">LHS</span><span class="p">,</span> <span class="n">RHS</span><span class="p">;</span>
+
+<span class="nl">public:</span>
+ <span class="n">BinaryExprAST</span><span class="p">(</span><span class="kt">char</span> <span class="n">Op</span><span class="p">,</span> <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">ExprAST</span><span class="o">></span> <span class="n">LHS</span><span class="p">,</span>
+ <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">ExprAST</span><span class="o">></span> <span class="n">RHS</span><span class="p">)</span>
+ <span class="o">:</span> <span class="n">Op</span><span class="p">(</span><span class="n">Op</span><span class="p">),</span> <span class="n">LHS</span><span class="p">(</span><span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">LHS</span><span class="p">)),</span> <span class="n">RHS</span><span class="p">(</span><span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">RHS</span><span class="p">))</span> <span class="p">{}</span>
+ <span class="n">Value</span> <span class="o">*</span><span class="n">codegen</span><span class="p">()</span> <span class="n">override</span><span class="p">;</span>
+<span class="p">};</span>
+
+<span class="c1">/// CallExprAST - Expression class for function calls.</span>
+<span class="k">class</span> <span class="nc">CallExprAST</span> <span class="o">:</span> <span class="k">public</span> <span class="n">ExprAST</span> <span class="p">{</span>
+ <span class="n">std</span><span class="o">::</span><span class="n">string</span> <span class="n">Callee</span><span class="p">;</span>
+ <span class="n">std</span><span class="o">::</span><span class="n">vector</span><span class="o"><</span><span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">ExprAST</span><span class="o">>></span> <span class="n">Args</span><span class="p">;</span>
+
+<span class="nl">public:</span>
+ <span class="n">CallExprAST</span><span class="p">(</span><span class="k">const</span> <span class="n">std</span><span class="o">::</span><span class="n">string</span> <span class="o">&</span><span class="n">Callee</span><span class="p">,</span>
+ <span class="n">std</span><span class="o">::</span><span class="n">vector</span><span class="o"><</span><span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">ExprAST</span><span class="o">>></span> <span class="n">Args</span><span class="p">)</span>
+ <span class="o">:</span> <span class="n">Callee</span><span class="p">(</span><span class="n">Callee</span><span class="p">),</span> <span class="n">Args</span><span class="p">(</span><span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">Args</span><span class="p">))</span> <span class="p">{}</span>
+ <span class="n">Value</span> <span class="o">*</span><span class="n">codegen</span><span class="p">()</span> <span class="n">override</span><span class="p">;</span>
+<span class="p">};</span>
+
+<span class="c1">/// PrototypeAST - This class represents the "prototype" for a function,</span>
+<span class="c1">/// which captures its name, and its argument names (thus implicitly the number</span>
+<span class="c1">/// of arguments the function takes).</span>
+<span class="k">class</span> <span class="nc">PrototypeAST</span> <span class="p">{</span>
+ <span class="n">std</span><span class="o">::</span><span class="n">string</span> <span class="n">Name</span><span class="p">;</span>
+ <span class="n">std</span><span class="o">::</span><span class="n">vector</span><span class="o"><</span><span class="n">std</span><span class="o">::</span><span class="n">string</span><span class="o">></span> <span class="n">Args</span><span class="p">;</span>
+
+<span class="nl">public:</span>
+ <span class="n">PrototypeAST</span><span class="p">(</span><span class="k">const</span> <span class="n">std</span><span class="o">::</span><span class="n">string</span> <span class="o">&</span><span class="n">Name</span><span class="p">,</span> <span class="n">std</span><span class="o">::</span><span class="n">vector</span><span class="o"><</span><span class="n">std</span><span class="o">::</span><span class="n">string</span><span class="o">></span> <span class="n">Args</span><span class="p">)</span>
+ <span class="o">:</span> <span class="n">Name</span><span class="p">(</span><span class="n">Name</span><span class="p">),</span> <span class="n">Args</span><span class="p">(</span><span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">Args</span><span class="p">))</span> <span class="p">{}</span>
+ <span class="n">Function</span> <span class="o">*</span><span class="n">codegen</span><span class="p">();</span>
+ <span class="k">const</span> <span class="n">std</span><span class="o">::</span><span class="n">string</span> <span class="o">&</span><span class="n">getName</span><span class="p">()</span> <span class="k">const</span> <span class="p">{</span> <span class="k">return</span> <span class="n">Name</span><span class="p">;</span> <span class="p">}</span>
+<span class="p">};</span>
+
+<span class="c1">/// FunctionAST - This class represents a function definition itself.</span>
+<span class="k">class</span> <span class="nc">FunctionAST</span> <span class="p">{</span>
+ <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">PrototypeAST</span><span class="o">></span> <span class="n">Proto</span><span class="p">;</span>
+ <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">ExprAST</span><span class="o">></span> <span class="n">Body</span><span class="p">;</span>
+
+<span class="nl">public:</span>
+ <span class="n">FunctionAST</span><span class="p">(</span><span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">PrototypeAST</span><span class="o">></span> <span class="n">Proto</span><span class="p">,</span>
+ <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">ExprAST</span><span class="o">></span> <span class="n">Body</span><span class="p">)</span>
+ <span class="o">:</span> <span class="n">Proto</span><span class="p">(</span><span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">Proto</span><span class="p">)),</span> <span class="n">Body</span><span class="p">(</span><span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">Body</span><span class="p">))</span> <span class="p">{}</span>
+ <span class="n">Function</span> <span class="o">*</span><span class="n">codegen</span><span class="p">();</span>
+<span class="p">};</span>
+<span class="p">}</span> <span class="c1">// end anonymous namespace</span>
+
+<span class="c1">//===----------------------------------------------------------------------===//</span>
+<span class="c1">// Parser</span>
+<span class="c1">//===----------------------------------------------------------------------===//</span>
+
+<span class="c1">/// CurTok/getNextToken - Provide a simple token buffer. CurTok is the current</span>
+<span class="c1">/// token the parser is looking at. getNextToken reads another token from the</span>
+<span class="c1">/// lexer and updates CurTok with its results.</span>
+<span class="k">static</span> <span class="kt">int</span> <span class="n">CurTok</span><span class="p">;</span>
+<span class="k">static</span> <span class="kt">int</span> <span class="nf">getNextToken</span><span class="p">()</span> <span class="p">{</span> <span class="k">return</span> <span class="n">CurTok</span> <span class="o">=</span> <span class="n">gettok</span><span class="p">();</span> <span class="p">}</span>
+
+<span class="c1">/// BinopPrecedence - This holds the precedence for each binary operator that is</span>
+<span class="c1">/// defined.</span>
+<span class="k">static</span> <span class="n">std</span><span class="o">::</span><span class="n">map</span><span class="o"><</span><span class="kt">char</span><span class="p">,</span> <span class="kt">int</span><span class="o">></span> <span class="n">BinopPrecedence</span><span class="p">;</span>
+
+<span class="c1">/// GetTokPrecedence - Get the precedence of the pending binary operator token.</span>
+<span class="k">static</span> <span class="kt">int</span> <span class="nf">GetTokPrecedence</span><span class="p">()</span> <span class="p">{</span>
+ <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="n">isascii</span><span class="p">(</span><span class="n">CurTok</span><span class="p">))</span>
+ <span class="k">return</span> <span class="o">-</span><span class="mi">1</span><span class="p">;</span>
+
+ <span class="c1">// Make sure it's a declared binop.</span>
+ <span class="kt">int</span> <span class="n">TokPrec</span> <span class="o">=</span> <span class="n">BinopPrecedence</span><span class="p">[</span><span class="n">CurTok</span><span class="p">];</span>
+ <span class="k">if</span> <span class="p">(</span><span class="n">TokPrec</span> <span class="o"><=</span> <span class="mi">0</span><span class="p">)</span>
+ <span class="k">return</span> <span class="o">-</span><span class="mi">1</span><span class="p">;</span>
+ <span class="k">return</span> <span class="n">TokPrec</span><span class="p">;</span>
+<span class="p">}</span>
+
+<span class="c1">/// Error* - These are little helper functions for error handling.</span>
+<span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">ExprAST</span><span class="o">></span> <span class="n">Error</span><span class="p">(</span><span class="k">const</span> <span class="kt">char</span> <span class="o">*</span><span class="n">Str</span><span class="p">)</span> <span class="p">{</span>
+ <span class="n">fprintf</span><span class="p">(</span><span class="n">stderr</span><span class="p">,</span> <span class="s">"Error: %s</span><span class="se">\n</span><span class="s">"</span><span class="p">,</span> <span class="n">Str</span><span class="p">);</span>
+ <span class="k">return</span> <span class="n">nullptr</span><span class="p">;</span>
+<span class="p">}</span>
+
+<span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">PrototypeAST</span><span class="o">></span> <span class="n">ErrorP</span><span class="p">(</span><span class="k">const</span> <span class="kt">char</span> <span class="o">*</span><span class="n">Str</span><span class="p">)</span> <span class="p">{</span>
+ <span class="n">Error</span><span class="p">(</span><span class="n">Str</span><span class="p">);</span>
+ <span class="k">return</span> <span class="n">nullptr</span><span class="p">;</span>
+<span class="p">}</span>
+
+<span class="k">static</span> <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">ExprAST</span><span class="o">></span> <span class="n">ParseExpression</span><span class="p">();</span>
+
+<span class="c1">/// numberexpr ::= number</span>
+<span class="k">static</span> <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">ExprAST</span><span class="o">></span> <span class="n">ParseNumberExpr</span><span class="p">()</span> <span class="p">{</span>
+ <span class="k">auto</span> <span class="n">Result</span> <span class="o">=</span> <span class="n">llvm</span><span class="o">::</span><span class="n">make_unique</span><span class="o"><</span><span class="n">NumberExprAST</span><span class="o">></span><span class="p">(</span><span class="n">NumVal</span><span class="p">);</span>
+ <span class="n">getNextToken</span><span class="p">();</span> <span class="c1">// consume the number</span>
+ <span class="k">return</span> <span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">Result</span><span class="p">);</span>
+<span class="p">}</span>
+
+<span class="c1">/// parenexpr ::= '(' expression ')'</span>
+<span class="k">static</span> <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">ExprAST</span><span class="o">></span> <span class="n">ParseParenExpr</span><span class="p">()</span> <span class="p">{</span>
+ <span class="n">getNextToken</span><span class="p">();</span> <span class="c1">// eat (.</span>
+ <span class="k">auto</span> <span class="n">V</span> <span class="o">=</span> <span class="n">ParseExpression</span><span class="p">();</span>
+ <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="n">V</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">nullptr</span><span class="p">;</span>
+
+ <span class="k">if</span> <span class="p">(</span><span class="n">CurTok</span> <span class="o">!=</span> <span class="sc">')'</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">Error</span><span class="p">(</span><span class="s">"expected ')'"</span><span class="p">);</span>
+ <span class="n">getNextToken</span><span class="p">();</span> <span class="c1">// eat ).</span>
+ <span class="k">return</span> <span class="n">V</span><span class="p">;</span>
+<span class="p">}</span>
+
+<span class="c1">/// identifierexpr</span>
+<span class="c1">/// ::= identifier</span>
+<span class="c1">/// ::= identifier '(' expression* ')'</span>
+<span class="k">static</span> <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">ExprAST</span><span class="o">></span> <span class="n">ParseIdentifierExpr</span><span class="p">()</span> <span class="p">{</span>
+ <span class="n">std</span><span class="o">::</span><span class="n">string</span> <span class="n">IdName</span> <span class="o">=</span> <span class="n">IdentifierStr</span><span class="p">;</span>
+
+ <span class="n">getNextToken</span><span class="p">();</span> <span class="c1">// eat identifier.</span>
+
+ <span class="k">if</span> <span class="p">(</span><span class="n">CurTok</span> <span class="o">!=</span> <span class="sc">'('</span><span class="p">)</span> <span class="c1">// Simple variable ref.</span>
+ <span class="k">return</span> <span class="n">llvm</span><span class="o">::</span><span class="n">make_unique</span><span class="o"><</span><span class="n">VariableExprAST</span><span class="o">></span><span class="p">(</span><span class="n">IdName</span><span class="p">);</span>
+
+ <span class="c1">// Call.</span>
+ <span class="n">getNextToken</span><span class="p">();</span> <span class="c1">// eat (</span>
+ <span class="n">std</span><span class="o">::</span><span class="n">vector</span><span class="o"><</span><span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">ExprAST</span><span class="o">>></span> <span class="n">Args</span><span class="p">;</span>
+ <span class="k">if</span> <span class="p">(</span><span class="n">CurTok</span> <span class="o">!=</span> <span class="sc">')'</span><span class="p">)</span> <span class="p">{</span>
+ <span class="k">while</span> <span class="p">(</span><span class="mi">1</span><span class="p">)</span> <span class="p">{</span>
+ <span class="k">if</span> <span class="p">(</span><span class="k">auto</span> <span class="n">Arg</span> <span class="o">=</span> <span class="n">ParseExpression</span><span class="p">())</span>
+ <span class="n">Args</span><span class="p">.</span><span class="n">push_back</span><span class="p">(</span><span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">Arg</span><span class="p">));</span>
+ <span class="k">else</span>
+ <span class="k">return</span> <span class="n">nullptr</span><span class="p">;</span>
+
+ <span class="k">if</span> <span class="p">(</span><span class="n">CurTok</span> <span class="o">==</span> <span class="sc">')'</span><span class="p">)</span>
+ <span class="k">break</span><span class="p">;</span>
+
+ <span class="k">if</span> <span class="p">(</span><span class="n">CurTok</span> <span class="o">!=</span> <span class="sc">','</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">Error</span><span class="p">(</span><span class="s">"Expected ')' or ',' in argument list"</span><span class="p">);</span>
+ <span class="n">getNextToken</span><span class="p">();</span>
+ <span class="p">}</span>
+ <span class="p">}</span>
+
+ <span class="c1">// Eat the ')'.</span>
+ <span class="n">getNextToken</span><span class="p">();</span>
+
+ <span class="k">return</span> <span class="n">llvm</span><span class="o">::</span><span class="n">make_unique</span><span class="o"><</span><span class="n">CallExprAST</span><span class="o">></span><span class="p">(</span><span class="n">IdName</span><span class="p">,</span> <span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">Args</span><span class="p">));</span>
+<span class="p">}</span>
+
+<span class="c1">/// primary</span>
+<span class="c1">/// ::= identifierexpr</span>
+<span class="c1">/// ::= numberexpr</span>
+<span class="c1">/// ::= parenexpr</span>
+<span class="k">static</span> <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">ExprAST</span><span class="o">></span> <span class="n">ParsePrimary</span><span class="p">()</span> <span class="p">{</span>
+ <span class="k">switch</span> <span class="p">(</span><span class="n">CurTok</span><span class="p">)</span> <span class="p">{</span>
+ <span class="nl">default:</span>
+ <span class="k">return</span> <span class="n">Error</span><span class="p">(</span><span class="s">"unknown token when expecting an expression"</span><span class="p">);</span>
+ <span class="k">case</span> <span class="n">tok_identifier</span>:
+ <span class="k">return</span> <span class="n">ParseIdentifierExpr</span><span class="p">();</span>
+ <span class="k">case</span> <span class="n">tok_number</span>:
+ <span class="k">return</span> <span class="n">ParseNumberExpr</span><span class="p">();</span>
+ <span class="k">case</span> <span class="sc">'('</span>:
+ <span class="k">return</span> <span class="n">ParseParenExpr</span><span class="p">();</span>
+ <span class="p">}</span>
+<span class="p">}</span>
+
+<span class="c1">/// binoprhs</span>
+<span class="c1">/// ::= ('+' primary)*</span>
+<span class="k">static</span> <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">ExprAST</span><span class="o">></span> <span class="n">ParseBinOpRHS</span><span class="p">(</span><span class="kt">int</span> <span class="n">ExprPrec</span><span class="p">,</span>
+ <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">ExprAST</span><span class="o">></span> <span class="n">LHS</span><span class="p">)</span> <span class="p">{</span>
+ <span class="c1">// If this is a binop, find its precedence.</span>
+ <span class="k">while</span> <span class="p">(</span><span class="mi">1</span><span class="p">)</span> <span class="p">{</span>
+ <span class="kt">int</span> <span class="n">TokPrec</span> <span class="o">=</span> <span class="n">GetTokPrecedence</span><span class="p">();</span>
+
+ <span class="c1">// If this is a binop that binds at least as tightly as the current binop,</span>
+ <span class="c1">// consume it, otherwise we are done.</span>
+ <span class="k">if</span> <span class="p">(</span><span class="n">TokPrec</span> <span class="o"><</span> <span class="n">ExprPrec</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">LHS</span><span class="p">;</span>
+
+ <span class="c1">// Okay, we know this is a binop.</span>
+ <span class="kt">int</span> <span class="n">BinOp</span> <span class="o">=</span> <span class="n">CurTok</span><span class="p">;</span>
+ <span class="n">getNextToken</span><span class="p">();</span> <span class="c1">// eat binop</span>
+
+ <span class="c1">// Parse the primary expression after the binary operator.</span>
+ <span class="k">auto</span> <span class="n">RHS</span> <span class="o">=</span> <span class="n">ParsePrimary</span><span class="p">();</span>
+ <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="n">RHS</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">nullptr</span><span class="p">;</span>
+
+ <span class="c1">// If BinOp binds less tightly with RHS than the operator after RHS, let</span>
+ <span class="c1">// the pending operator take RHS as its LHS.</span>
+ <span class="kt">int</span> <span class="n">NextPrec</span> <span class="o">=</span> <span class="n">GetTokPrecedence</span><span class="p">();</span>
+ <span class="k">if</span> <span class="p">(</span><span class="n">TokPrec</span> <span class="o"><</span> <span class="n">NextPrec</span><span class="p">)</span> <span class="p">{</span>
+ <span class="n">RHS</span> <span class="o">=</span> <span class="n">ParseBinOpRHS</span><span class="p">(</span><span class="n">TokPrec</span> <span class="o">+</span> <span class="mi">1</span><span class="p">,</span> <span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">RHS</span><span class="p">));</span>
+ <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="n">RHS</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">nullptr</span><span class="p">;</span>
+ <span class="p">}</span>
+
+ <span class="c1">// Merge LHS/RHS.</span>
+ <span class="n">LHS</span> <span class="o">=</span>
+ <span class="n">llvm</span><span class="o">::</span><span class="n">make_unique</span><span class="o"><</span><span class="n">BinaryExprAST</span><span class="o">></span><span class="p">(</span><span class="n">BinOp</span><span class="p">,</span> <span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">LHS</span><span class="p">),</span> <span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">RHS</span><span class="p">));</span>
+ <span class="p">}</span>
+<span class="p">}</span>
+
+<span class="c1">/// expression</span>
+<span class="c1">/// ::= primary binoprhs</span>
+<span class="c1">///</span>
+<span class="k">static</span> <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">ExprAST</span><span class="o">></span> <span class="n">ParseExpression</span><span class="p">()</span> <span class="p">{</span>
+ <span class="k">auto</span> <span class="n">LHS</span> <span class="o">=</span> <span class="n">ParsePrimary</span><span class="p">();</span>
+ <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="n">LHS</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">nullptr</span><span class="p">;</span>
+
+ <span class="k">return</span> <span class="nf">ParseBinOpRHS</span><span class="p">(</span><span class="mi">0</span><span class="p">,</span> <span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">LHS</span><span class="p">));</span>
+<span class="p">}</span>
+
+<span class="c1">/// prototype</span>
+<span class="c1">/// ::= id '(' id* ')'</span>
+<span class="k">static</span> <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">PrototypeAST</span><span class="o">></span> <span class="n">ParsePrototype</span><span class="p">()</span> <span class="p">{</span>
+ <span class="k">if</span> <span class="p">(</span><span class="n">CurTok</span> <span class="o">!=</span> <span class="n">tok_identifier</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">ErrorP</span><span class="p">(</span><span class="s">"Expected function name in prototype"</span><span class="p">);</span>
+
+ <span class="n">std</span><span class="o">::</span><span class="n">string</span> <span class="n">FnName</span> <span class="o">=</span> <span class="n">IdentifierStr</span><span class="p">;</span>
+ <span class="n">getNextToken</span><span class="p">();</span>
+
+ <span class="k">if</span> <span class="p">(</span><span class="n">CurTok</span> <span class="o">!=</span> <span class="sc">'('</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">ErrorP</span><span class="p">(</span><span class="s">"Expected '(' in prototype"</span><span class="p">);</span>
+
+ <span class="n">std</span><span class="o">::</span><span class="n">vector</span><span class="o"><</span><span class="n">std</span><span class="o">::</span><span class="n">string</span><span class="o">></span> <span class="n">ArgNames</span><span class="p">;</span>
+ <span class="k">while</span> <span class="p">(</span><span class="n">getNextToken</span><span class="p">()</span> <span class="o">==</span> <span class="n">tok_identifier</span><span class="p">)</span>
+ <span class="n">ArgNames</span><span class="p">.</span><span class="n">push_back</span><span class="p">(</span><span class="n">IdentifierStr</span><span class="p">);</span>
+ <span class="k">if</span> <span class="p">(</span><span class="n">CurTok</span> <span class="o">!=</span> <span class="sc">')'</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">ErrorP</span><span class="p">(</span><span class="s">"Expected ')' in prototype"</span><span class="p">);</span>
+
+ <span class="c1">// success.</span>
+ <span class="n">getNextToken</span><span class="p">();</span> <span class="c1">// eat ')'.</span>
+
+ <span class="k">return</span> <span class="n">llvm</span><span class="o">::</span><span class="n">make_unique</span><span class="o"><</span><span class="n">PrototypeAST</span><span class="o">></span><span class="p">(</span><span class="n">FnName</span><span class="p">,</span> <span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">ArgNames</span><span class="p">));</span>
+<span class="p">}</span>
+
+<span class="c1">/// definition ::= 'def' prototype expression</span>
+<span class="k">static</span> <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">FunctionAST</span><span class="o">></span> <span class="n">ParseDefinition</span><span class="p">()</span> <span class="p">{</span>
+ <span class="n">getNextToken</span><span class="p">();</span> <span class="c1">// eat def.</span>
+ <span class="k">auto</span> <span class="n">Proto</span> <span class="o">=</span> <span class="n">ParsePrototype</span><span class="p">();</span>
+ <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="n">Proto</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">nullptr</span><span class="p">;</span>
+
+ <span class="k">if</span> <span class="p">(</span><span class="k">auto</span> <span class="n">E</span> <span class="o">=</span> <span class="n">ParseExpression</span><span class="p">())</span>
+ <span class="k">return</span> <span class="n">llvm</span><span class="o">::</span><span class="n">make_unique</span><span class="o"><</span><span class="n">FunctionAST</span><span class="o">></span><span class="p">(</span><span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">Proto</span><span class="p">),</span> <span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">E</span><span class="p">));</span>
+ <span class="k">return</span> <span class="n">nullptr</span><span class="p">;</span>
+<span class="p">}</span>
+
+<span class="c1">/// toplevelexpr ::= expression</span>
+<span class="k">static</span> <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">FunctionAST</span><span class="o">></span> <span class="n">ParseTopLevelExpr</span><span class="p">()</span> <span class="p">{</span>
+ <span class="k">if</span> <span class="p">(</span><span class="k">auto</span> <span class="n">E</span> <span class="o">=</span> <span class="n">ParseExpression</span><span class="p">())</span> <span class="p">{</span>
+ <span class="c1">// Make an anonymous proto.</span>
+ <span class="k">auto</span> <span class="n">Proto</span> <span class="o">=</span> <span class="n">llvm</span><span class="o">::</span><span class="n">make_unique</span><span class="o"><</span><span class="n">PrototypeAST</span><span class="o">></span><span class="p">(</span><span class="s">"__anon_expr"</span><span class="p">,</span>
+ <span class="n">std</span><span class="o">::</span><span class="n">vector</span><span class="o"><</span><span class="n">std</span><span class="o">::</span><span class="n">string</span><span class="o">></span><span class="p">());</span>
+ <span class="k">return</span> <span class="n">llvm</span><span class="o">::</span><span class="n">make_unique</span><span class="o"><</span><span class="n">FunctionAST</span><span class="o">></span><span class="p">(</span><span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">Proto</span><span class="p">),</span> <span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">E</span><span class="p">));</span>
+ <span class="p">}</span>
+ <span class="k">return</span> <span class="n">nullptr</span><span class="p">;</span>
+<span class="p">}</span>
+
+<span class="c1">/// external ::= 'extern' prototype</span>
+<span class="k">static</span> <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">PrototypeAST</span><span class="o">></span> <span class="n">ParseExtern</span><span class="p">()</span> <span class="p">{</span>
+ <span class="n">getNextToken</span><span class="p">();</span> <span class="c1">// eat extern.</span>
+ <span class="k">return</span> <span class="nf">ParsePrototype</span><span class="p">();</span>
+<span class="p">}</span>
+
+<span class="c1">//===----------------------------------------------------------------------===//</span>
+<span class="c1">// Code Generation</span>
+<span class="c1">//===----------------------------------------------------------------------===//</span>
+
+<span class="k">static</span> <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">Module</span><span class="o">></span> <span class="n">TheModule</span><span class="p">;</span>
+<span class="k">static</span> <span class="n">IRBuilder</span><span class="o"><></span> <span class="n">Builder</span><span class="p">(</span><span class="n">getGlobalContext</span><span class="p">());</span>
+<span class="k">static</span> <span class="n">std</span><span class="o">::</span><span class="n">map</span><span class="o"><</span><span class="n">std</span><span class="o">::</span><span class="n">string</span><span class="p">,</span> <span class="n">Value</span> <span class="o">*></span> <span class="n">NamedValues</span><span class="p">;</span>
+
+<span class="n">Value</span> <span class="o">*</span><span class="nf">ErrorV</span><span class="p">(</span><span class="k">const</span> <span class="kt">char</span> <span class="o">*</span><span class="n">Str</span><span class="p">)</span> <span class="p">{</span>
+ <span class="n">Error</span><span class="p">(</span><span class="n">Str</span><span class="p">);</span>
+ <span class="k">return</span> <span class="n">nullptr</span><span class="p">;</span>
+<span class="p">}</span>
+
+<span class="n">Value</span> <span class="o">*</span><span class="n">NumberExprAST</span><span class="o">::</span><span class="n">codegen</span><span class="p">()</span> <span class="p">{</span>
+ <span class="k">return</span> <span class="n">ConstantFP</span><span class="o">::</span><span class="n">get</span><span class="p">(</span><span class="n">getGlobalContext</span><span class="p">(),</span> <span class="n">APFloat</span><span class="p">(</span><span class="n">Val</span><span class="p">));</span>
+<span class="p">}</span>
+
+<span class="n">Value</span> <span class="o">*</span><span class="n">VariableExprAST</span><span class="o">::</span><span class="n">codegen</span><span class="p">()</span> <span class="p">{</span>
+ <span class="c1">// Look this variable up in the function.</span>
+ <span class="n">Value</span> <span class="o">*</span><span class="n">V</span> <span class="o">=</span> <span class="n">NamedValues</span><span class="p">[</span><span class="n">Name</span><span class="p">];</span>
+ <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="n">V</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">ErrorV</span><span class="p">(</span><span class="s">"Unknown variable name"</span><span class="p">);</span>
+ <span class="k">return</span> <span class="n">V</span><span class="p">;</span>
+<span class="p">}</span>
+
+<span class="n">Value</span> <span class="o">*</span><span class="n">BinaryExprAST</span><span class="o">::</span><span class="n">codegen</span><span class="p">()</span> <span class="p">{</span>
+ <span class="n">Value</span> <span class="o">*</span><span class="n">L</span> <span class="o">=</span> <span class="n">LHS</span><span class="o">-></span><span class="n">codegen</span><span class="p">();</span>
+ <span class="n">Value</span> <span class="o">*</span><span class="n">R</span> <span class="o">=</span> <span class="n">RHS</span><span class="o">-></span><span class="n">codegen</span><span class="p">();</span>
+ <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="n">L</span> <span class="o">||</span> <span class="o">!</span><span class="n">R</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">nullptr</span><span class="p">;</span>
+
+ <span class="k">switch</span> <span class="p">(</span><span class="n">Op</span><span class="p">)</span> <span class="p">{</span>
+ <span class="k">case</span> <span class="sc">'+'</span>:
+ <span class="k">return</span> <span class="n">Builder</span><span class="p">.</span><span class="n">CreateFAdd</span><span class="p">(</span><span class="n">L</span><span class="p">,</span> <span class="n">R</span><span class="p">,</span> <span class="s">"addtmp"</span><span class="p">);</span>
+ <span class="k">case</span> <span class="sc">'-'</span>:
+ <span class="k">return</span> <span class="n">Builder</span><span class="p">.</span><span class="n">CreateFSub</span><span class="p">(</span><span class="n">L</span><span class="p">,</span> <span class="n">R</span><span class="p">,</span> <span class="s">"subtmp"</span><span class="p">);</span>
+ <span class="k">case</span> <span class="sc">'*'</span>:
+ <span class="k">return</span> <span class="n">Builder</span><span class="p">.</span><span class="n">CreateFMul</span><span class="p">(</span><span class="n">L</span><span class="p">,</span> <span class="n">R</span><span class="p">,</span> <span class="s">"multmp"</span><span class="p">);</span>
+ <span class="k">case</span> <span class="sc">'<'</span>:
+ <span class="n">L</span> <span class="o">=</span> <span class="n">Builder</span><span class="p">.</span><span class="n">CreateFCmpULT</span><span class="p">(</span><span class="n">L</span><span class="p">,</span> <span class="n">R</span><span class="p">,</span> <span class="s">"cmptmp"</span><span class="p">);</span>
+ <span class="c1">// Convert bool 0/1 to double 0.0 or 1.0</span>
+ <span class="k">return</span> <span class="n">Builder</span><span class="p">.</span><span class="n">CreateUIToFP</span><span class="p">(</span><span class="n">L</span><span class="p">,</span> <span class="n">Type</span><span class="o">::</span><span class="n">getDoubleTy</span><span class="p">(</span><span class="n">getGlobalContext</span><span class="p">()),</span>
+ <span class="s">"booltmp"</span><span class="p">);</span>
+ <span class="nl">default:</span>
+ <span class="k">return</span> <span class="nf">ErrorV</span><span class="p">(</span><span class="s">"invalid binary operator"</span><span class="p">);</span>
+ <span class="p">}</span>
+<span class="p">}</span>
+
+<span class="n">Value</span> <span class="o">*</span><span class="n">CallExprAST</span><span class="o">::</span><span class="n">codegen</span><span class="p">()</span> <span class="p">{</span>
+ <span class="c1">// Look up the name in the global module table.</span>
+ <span class="n">Function</span> <span class="o">*</span><span class="n">CalleeF</span> <span class="o">=</span> <span class="n">TheModule</span><span class="o">-></span><span class="n">getFunction</span><span class="p">(</span><span class="n">Callee</span><span class="p">);</span>
+ <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="n">CalleeF</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">ErrorV</span><span class="p">(</span><span class="s">"Unknown function referenced"</span><span class="p">);</span>
+
+ <span class="c1">// If argument mismatch error.</span>
+ <span class="k">if</span> <span class="p">(</span><span class="n">CalleeF</span><span class="o">-></span><span class="n">arg_size</span><span class="p">()</span> <span class="o">!=</span> <span class="n">Args</span><span class="p">.</span><span class="n">size</span><span class="p">())</span>
+ <span class="k">return</span> <span class="n">ErrorV</span><span class="p">(</span><span class="s">"Incorrect # arguments passed"</span><span class="p">);</span>
+
+ <span class="n">std</span><span class="o">::</span><span class="n">vector</span><span class="o"><</span><span class="n">Value</span> <span class="o">*></span> <span class="n">ArgsV</span><span class="p">;</span>
+ <span class="k">for</span> <span class="p">(</span><span class="kt">unsigned</span> <span class="n">i</span> <span class="o">=</span> <span class="mi">0</span><span class="p">,</span> <span class="n">e</span> <span class="o">=</span> <span class="n">Args</span><span class="p">.</span><span class="n">size</span><span class="p">();</span> <span class="n">i</span> <span class="o">!=</span> <span class="n">e</span><span class="p">;</span> <span class="o">++</span><span class="n">i</span><span class="p">)</span> <span class="p">{</span>
+ <span class="n">ArgsV</span><span class="p">.</span><span class="n">push_back</span><span class="p">(</span><span class="n">Args</span><span class="p">[</span><span class="n">i</span><span class="p">]</span><span class="o">-></span><span class="n">codegen</span><span class="p">());</span>
+ <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="n">ArgsV</span><span class="p">.</span><span class="n">back</span><span class="p">())</span>
+ <span class="k">return</span> <span class="n">nullptr</span><span class="p">;</span>
+ <span class="p">}</span>
+
+ <span class="k">return</span> <span class="n">Builder</span><span class="p">.</span><span class="n">CreateCall</span><span class="p">(</span><span class="n">CalleeF</span><span class="p">,</span> <span class="n">ArgsV</span><span class="p">,</span> <span class="s">"calltmp"</span><span class="p">);</span>
+<span class="p">}</span>
+
+<span class="n">Function</span> <span class="o">*</span><span class="n">PrototypeAST</span><span class="o">::</span><span class="n">codegen</span><span class="p">()</span> <span class="p">{</span>
+ <span class="c1">// Make the function type: double(double,double) etc.</span>
+ <span class="n">std</span><span class="o">::</span><span class="n">vector</span><span class="o"><</span><span class="n">Type</span> <span class="o">*></span> <span class="n">Doubles</span><span class="p">(</span><span class="n">Args</span><span class="p">.</span><span class="n">size</span><span class="p">(),</span>
+ <span class="n">Type</span><span class="o">::</span><span class="n">getDoubleTy</span><span class="p">(</span><span class="n">getGlobalContext</span><span class="p">()));</span>
+ <span class="n">FunctionType</span> <span class="o">*</span><span class="n">FT</span> <span class="o">=</span>
+ <span class="n">FunctionType</span><span class="o">::</span><span class="n">get</span><span class="p">(</span><span class="n">Type</span><span class="o">::</span><span class="n">getDoubleTy</span><span class="p">(</span><span class="n">getGlobalContext</span><span class="p">()),</span> <span class="n">Doubles</span><span class="p">,</span> <span class="nb">false</span><span class="p">);</span>
+
+ <span class="n">Function</span> <span class="o">*</span><span class="n">F</span> <span class="o">=</span>
+ <span class="n">Function</span><span class="o">::</span><span class="n">Create</span><span class="p">(</span><span class="n">FT</span><span class="p">,</span> <span class="n">Function</span><span class="o">::</span><span class="n">ExternalLinkage</span><span class="p">,</span> <span class="n">Name</span><span class="p">,</span> <span class="n">TheModule</span><span class="p">.</span><span class="n">get</span><span class="p">());</span>
+
+ <span class="c1">// Set names for all arguments.</span>
+ <span class="kt">unsigned</span> <span class="n">Idx</span> <span class="o">=</span> <span class="mi">0</span><span class="p">;</span>
+ <span class="k">for</span> <span class="p">(</span><span class="k">auto</span> <span class="o">&</span><span class="n">Arg</span> <span class="o">:</span> <span class="n">F</span><span class="o">-></span><span class="n">args</span><span class="p">())</span>
+ <span class="n">Arg</span><span class="p">.</span><span class="n">setName</span><span class="p">(</span><span class="n">Args</span><span class="p">[</span><span class="n">Idx</span><span class="o">++</span><span class="p">]);</span>
+
+ <span class="k">return</span> <span class="n">F</span><span class="p">;</span>
+<span class="p">}</span>
+
+<span class="n">Function</span> <span class="o">*</span><span class="n">FunctionAST</span><span class="o">::</span><span class="n">codegen</span><span class="p">()</span> <span class="p">{</span>
+ <span class="c1">// First, check for an existing function from a previous 'extern' declaration.</span>
+ <span class="n">Function</span> <span class="o">*</span><span class="n">TheFunction</span> <span class="o">=</span> <span class="n">TheModule</span><span class="o">-></span><span class="n">getFunction</span><span class="p">(</span><span class="n">Proto</span><span class="o">-></span><span class="n">getName</span><span class="p">());</span>
+
+ <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="n">TheFunction</span><span class="p">)</span>
+ <span class="n">TheFunction</span> <span class="o">=</span> <span class="n">Proto</span><span class="o">-></span><span class="n">codegen</span><span class="p">();</span>
+
+ <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="n">TheFunction</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">nullptr</span><span class="p">;</span>
+
+ <span class="c1">// Create a new basic block to start insertion into.</span>
+ <span class="n">BasicBlock</span> <span class="o">*</span><span class="n">BB</span> <span class="o">=</span> <span class="n">BasicBlock</span><span class="o">::</span><span class="n">Create</span><span class="p">(</span><span class="n">getGlobalContext</span><span class="p">(),</span> <span class="s">"entry"</span><span class="p">,</span> <span class="n">TheFunction</span><span class="p">);</span>
+ <span class="n">Builder</span><span class="p">.</span><span class="n">SetInsertPoint</span><span class="p">(</span><span class="n">BB</span><span class="p">);</span>
+
+ <span class="c1">// Record the function arguments in the NamedValues map.</span>
+ <span class="n">NamedValues</span><span class="p">.</span><span class="n">clear</span><span class="p">();</span>
+ <span class="k">for</span> <span class="p">(</span><span class="k">auto</span> <span class="o">&</span><span class="n">Arg</span> <span class="o">:</span> <span class="n">TheFunction</span><span class="o">-></span><span class="n">args</span><span class="p">())</span>
+ <span class="n">NamedValues</span><span class="p">[</span><span class="n">Arg</span><span class="p">.</span><span class="n">getName</span><span class="p">()]</span> <span class="o">=</span> <span class="o">&</span><span class="n">Arg</span><span class="p">;</span>
+
+ <span class="k">if</span> <span class="p">(</span><span class="n">Value</span> <span class="o">*</span><span class="n">RetVal</span> <span class="o">=</span> <span class="n">Body</span><span class="o">-></span><span class="n">codegen</span><span class="p">())</span> <span class="p">{</span>
+ <span class="c1">// Finish off the function.</span>
+ <span class="n">Builder</span><span class="p">.</span><span class="n">CreateRet</span><span class="p">(</span><span class="n">RetVal</span><span class="p">);</span>
+
+ <span class="c1">// Validate the generated code, checking for consistency.</span>
+ <span class="n">verifyFunction</span><span class="p">(</span><span class="o">*</span><span class="n">TheFunction</span><span class="p">);</span>
+
+ <span class="k">return</span> <span class="n">TheFunction</span><span class="p">;</span>
+ <span class="p">}</span>
+
+ <span class="c1">// Error reading body, remove function.</span>
+ <span class="n">TheFunction</span><span class="o">-></span><span class="n">eraseFromParent</span><span class="p">();</span>
+ <span class="k">return</span> <span class="n">nullptr</span><span class="p">;</span>
+<span class="p">}</span>
+
+<span class="c1">//===----------------------------------------------------------------------===//</span>
+<span class="c1">// Top-Level parsing and JIT Driver</span>
+<span class="c1">//===----------------------------------------------------------------------===//</span>
+
+<span class="k">static</span> <span class="kt">void</span> <span class="n">HandleDefinition</span><span class="p">()</span> <span class="p">{</span>
+ <span class="k">if</span> <span class="p">(</span><span class="k">auto</span> <span class="n">FnAST</span> <span class="o">=</span> <span class="n">ParseDefinition</span><span class="p">())</span> <span class="p">{</span>
+ <span class="k">if</span> <span class="p">(</span><span class="k">auto</span> <span class="o">*</span><span class="n">FnIR</span> <span class="o">=</span> <span class="n">FnAST</span><span class="o">-></span><span class="n">codegen</span><span class="p">())</span> <span class="p">{</span>
+ <span class="n">fprintf</span><span class="p">(</span><span class="n">stderr</span><span class="p">,</span> <span class="s">"Read function definition:"</span><span class="p">);</span>
+ <span class="n">FnIR</span><span class="o">-></span><span class="n">dump</span><span class="p">();</span>
+ <span class="p">}</span>
+ <span class="p">}</span> <span class="k">else</span> <span class="p">{</span>
+ <span class="c1">// Skip token for error recovery.</span>
+ <span class="n">getNextToken</span><span class="p">();</span>
+ <span class="p">}</span>
+<span class="p">}</span>
+
+<span class="k">static</span> <span class="kt">void</span> <span class="n">HandleExtern</span><span class="p">()</span> <span class="p">{</span>
+ <span class="k">if</span> <span class="p">(</span><span class="k">auto</span> <span class="n">ProtoAST</span> <span class="o">=</span> <span class="n">ParseExtern</span><span class="p">())</span> <span class="p">{</span>
+ <span class="k">if</span> <span class="p">(</span><span class="k">auto</span> <span class="o">*</span><span class="n">FnIR</span> <span class="o">=</span> <span class="n">ProtoAST</span><span class="o">-></span><span class="n">codegen</span><span class="p">())</span> <span class="p">{</span>
+ <span class="n">fprintf</span><span class="p">(</span><span class="n">stderr</span><span class="p">,</span> <span class="s">"Read extern: "</span><span class="p">);</span>
+ <span class="n">FnIR</span><span class="o">-></span><span class="n">dump</span><span class="p">();</span>
+ <span class="p">}</span>
+ <span class="p">}</span> <span class="k">else</span> <span class="p">{</span>
+ <span class="c1">// Skip token for error recovery.</span>
+ <span class="n">getNextToken</span><span class="p">();</span>
+ <span class="p">}</span>
+<span class="p">}</span>
+
+<span class="k">static</span> <span class="kt">void</span> <span class="n">HandleTopLevelExpression</span><span class="p">()</span> <span class="p">{</span>
+ <span class="c1">// Evaluate a top-level expression into an anonymous function.</span>
+ <span class="k">if</span> <span class="p">(</span><span class="k">auto</span> <span class="n">FnAST</span> <span class="o">=</span> <span class="n">ParseTopLevelExpr</span><span class="p">())</span> <span class="p">{</span>
+ <span class="k">if</span> <span class="p">(</span><span class="k">auto</span> <span class="o">*</span><span class="n">FnIR</span> <span class="o">=</span> <span class="n">FnAST</span><span class="o">-></span><span class="n">codegen</span><span class="p">())</span> <span class="p">{</span>
+ <span class="n">fprintf</span><span class="p">(</span><span class="n">stderr</span><span class="p">,</span> <span class="s">"Read top-level expression:"</span><span class="p">);</span>
+ <span class="n">FnIR</span><span class="o">-></span><span class="n">dump</span><span class="p">();</span>
+ <span class="p">}</span>
+ <span class="p">}</span> <span class="k">else</span> <span class="p">{</span>
+ <span class="c1">// Skip token for error recovery.</span>
+ <span class="n">getNextToken</span><span class="p">();</span>
+ <span class="p">}</span>
+<span class="p">}</span>
+
+<span class="c1">/// top ::= definition | external | expression | ';'</span>
+<span class="k">static</span> <span class="kt">void</span> <span class="n">MainLoop</span><span class="p">()</span> <span class="p">{</span>
+ <span class="k">while</span> <span class="p">(</span><span class="mi">1</span><span class="p">)</span> <span class="p">{</span>
+ <span class="n">fprintf</span><span class="p">(</span><span class="n">stderr</span><span class="p">,</span> <span class="s">"ready> "</span><span class="p">);</span>
+ <span class="k">switch</span> <span class="p">(</span><span class="n">CurTok</span><span class="p">)</span> <span class="p">{</span>
+ <span class="k">case</span> <span class="n">tok_eof</span>:
+ <span class="k">return</span><span class="p">;</span>
+ <span class="k">case</span> <span class="sc">';'</span>: <span class="c1">// ignore top-level semicolons.</span>
+ <span class="n">getNextToken</span><span class="p">();</span>
+ <span class="k">break</span><span class="p">;</span>
+ <span class="k">case</span> <span class="n">tok_def</span>:
+ <span class="n">HandleDefinition</span><span class="p">();</span>
+ <span class="k">break</span><span class="p">;</span>
+ <span class="k">case</span> <span class="n">tok_extern</span>:
+ <span class="n">HandleExtern</span><span class="p">();</span>
+ <span class="k">break</span><span class="p">;</span>
+ <span class="nl">default:</span>
+ <span class="n">HandleTopLevelExpression</span><span class="p">();</span>
+ <span class="k">break</span><span class="p">;</span>
+ <span class="p">}</span>
+ <span class="p">}</span>
+<span class="p">}</span>
+
+<span class="c1">//===----------------------------------------------------------------------===//</span>
+<span class="c1">// Main driver code.</span>
+<span class="c1">//===----------------------------------------------------------------------===//</span>
+
+<span class="kt">int</span> <span class="n">main</span><span class="p">()</span> <span class="p">{</span>
+ <span class="c1">// Install standard binary operators.</span>
+ <span class="c1">// 1 is lowest precedence.</span>
+ <span class="n">BinopPrecedence</span><span class="p">[</span><span class="sc">'<'</span><span class="p">]</span> <span class="o">=</span> <span class="mi">10</span><span class="p">;</span>
+ <span class="n">BinopPrecedence</span><span class="p">[</span><span class="sc">'+'</span><span class="p">]</span> <span class="o">=</span> <span class="mi">20</span><span class="p">;</span>
+ <span class="n">BinopPrecedence</span><span class="p">[</span><span class="sc">'-'</span><span class="p">]</span> <span class="o">=</span> <span class="mi">20</span><span class="p">;</span>
+ <span class="n">BinopPrecedence</span><span class="p">[</span><span class="sc">'*'</span><span class="p">]</span> <span class="o">=</span> <span class="mi">40</span><span class="p">;</span> <span class="c1">// highest.</span>
+
+ <span class="c1">// Prime the first token.</span>
+ <span class="n">fprintf</span><span class="p">(</span><span class="n">stderr</span><span class="p">,</span> <span class="s">"ready> "</span><span class="p">);</span>
+ <span class="n">getNextToken</span><span class="p">();</span>
+
+ <span class="c1">// Make the module, which holds all the code.</span>
+ <span class="n">TheModule</span> <span class="o">=</span> <span class="n">llvm</span><span class="o">::</span><span class="n">make_unique</span><span class="o"><</span><span class="n">Module</span><span class="o">></span><span class="p">(</span><span class="s">"my cool jit"</span><span class="p">,</span> <span class="n">getGlobalContext</span><span class="p">());</span>
+
+ <span class="c1">// Run the main "interpreter loop" now.</span>
+ <span class="n">MainLoop</span><span class="p">();</span>
+
+ <span class="c1">// Print out all of the generated code.</span>
+ <span class="n">TheModule</span><span class="o">-></span><span class="n">dump</span><span class="p">();</span>
+
+ <span class="k">return</span> <span class="mi">0</span><span class="p">;</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+<p><a class="reference external" href="LangImpl4.html">Next: Adding JIT and Optimizer Support</a></p>
+</div>
+</div>
+
+
+ </div>
+ </div>
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+
+ <div class="section" id="kaleidoscope-adding-jit-and-optimizer-support">
+<h1>4. Kaleidoscope: Adding JIT and Optimizer Support<a class="headerlink" href="#kaleidoscope-adding-jit-and-optimizer-support" title="Permalink to this headline">¶</a></h1>
+<div class="contents local topic" id="contents">
+<ul class="simple">
+<li><a class="reference internal" href="#chapter-4-introduction" id="id1">Chapter 4 Introduction</a></li>
+<li><a class="reference internal" href="#trivial-constant-folding" id="id2">Trivial Constant Folding</a></li>
+<li><a class="reference internal" href="#llvm-optimization-passes" id="id3">LLVM Optimization Passes</a></li>
+<li><a class="reference internal" href="#adding-a-jit-compiler" id="id4">Adding a JIT Compiler</a></li>
+<li><a class="reference internal" href="#full-code-listing" id="id5">Full Code Listing</a></li>
+</ul>
+</div>
+<div class="section" id="chapter-4-introduction">
+<h2><a class="toc-backref" href="#id1">4.1. Chapter 4 Introduction</a><a class="headerlink" href="#chapter-4-introduction" title="Permalink to this headline">¶</a></h2>
+<p>Welcome to Chapter 4 of the “<a class="reference external" href="index.html">Implementing a language with
+LLVM</a>” tutorial. Chapters 1-3 described the implementation
+of a simple language and added support for generating LLVM IR. This
+chapter describes two new techniques: adding optimizer support to your
+language, and adding JIT compiler support. These additions will
+demonstrate how to get nice, efficient code for the Kaleidoscope
+language.</p>
+</div>
+<div class="section" id="trivial-constant-folding">
+<h2><a class="toc-backref" href="#id2">4.2. Trivial Constant Folding</a><a class="headerlink" href="#trivial-constant-folding" title="Permalink to this headline">¶</a></h2>
+<p>Our demonstration for Chapter 3 is elegant and easy to extend.
+Unfortunately, it does not produce wonderful code. The IRBuilder,
+however, does give us obvious optimizations when compiling simple code:</p>
+<div class="highlight-python"><div class="highlight"><pre>ready> def test(x) 1+2+x;
+Read function definition:
+define double @test(double %x) {
+entry:
+ %addtmp = fadd double 3.000000e+00, %x
+ ret double %addtmp
+}
+</pre></div>
+</div>
+<p>This code is not a literal transcription of the AST built by parsing the
+input. That would be:</p>
+<div class="highlight-python"><div class="highlight"><pre>ready> def test(x) 1+2+x;
+Read function definition:
+define double @test(double %x) {
+entry:
+ %addtmp = fadd double 2.000000e+00, 1.000000e+00
+ %addtmp1 = fadd double %addtmp, %x
+ ret double %addtmp1
+}
+</pre></div>
+</div>
+<p>Constant folding, as seen above, in particular, is a very common and
+very important optimization: so much so that many language implementors
+implement constant folding support in their AST representation.</p>
+<p>With LLVM, you don’t need this support in the AST. Since all calls to
+build LLVM IR go through the LLVM IR builder, the builder itself checked
+to see if there was a constant folding opportunity when you call it. If
+so, it just does the constant fold and return the constant instead of
+creating an instruction.</p>
+<p>Well, that was easy :). In practice, we recommend always using
+<tt class="docutils literal"><span class="pre">IRBuilder</span></tt> when generating code like this. It has no “syntactic
+overhead” for its use (you don’t have to uglify your compiler with
+constant checks everywhere) and it can dramatically reduce the amount of
+LLVM IR that is generated in some cases (particular for languages with a
+macro preprocessor or that use a lot of constants).</p>
+<p>On the other hand, the <tt class="docutils literal"><span class="pre">IRBuilder</span></tt> is limited by the fact that it does
+all of its analysis inline with the code as it is built. If you take a
+slightly more complex example:</p>
+<div class="highlight-python"><div class="highlight"><pre>ready> def test(x) (1+2+x)*(x+(1+2));
+ready> Read function definition:
+define double @test(double %x) {
+entry:
+ %addtmp = fadd double 3.000000e+00, %x
+ %addtmp1 = fadd double %x, 3.000000e+00
+ %multmp = fmul double %addtmp, %addtmp1
+ ret double %multmp
+}
+</pre></div>
+</div>
+<p>In this case, the LHS and RHS of the multiplication are the same value.
+We’d really like to see this generate “<tt class="docutils literal"><span class="pre">tmp</span> <span class="pre">=</span> <span class="pre">x+3;</span> <span class="pre">result</span> <span class="pre">=</span> <span class="pre">tmp*tmp;</span></tt>”
+instead of computing “<tt class="docutils literal"><span class="pre">x+3</span></tt>” twice.</p>
+<p>Unfortunately, no amount of local analysis will be able to detect and
+correct this. This requires two transformations: reassociation of
+expressions (to make the add’s lexically identical) and Common
+Subexpression Elimination (CSE) to delete the redundant add instruction.
+Fortunately, LLVM provides a broad range of optimizations that you can
+use, in the form of “passes”.</p>
+</div>
+<div class="section" id="llvm-optimization-passes">
+<h2><a class="toc-backref" href="#id3">4.3. LLVM Optimization Passes</a><a class="headerlink" href="#llvm-optimization-passes" title="Permalink to this headline">¶</a></h2>
+<p>LLVM provides many optimization passes, which do many different sorts of
+things and have different tradeoffs. Unlike other systems, LLVM doesn’t
+hold to the mistaken notion that one set of optimizations is right for
+all languages and for all situations. LLVM allows a compiler implementor
+to make complete decisions about what optimizations to use, in which
+order, and in what situation.</p>
+<p>As a concrete example, LLVM supports both “whole module” passes, which
+look across as large of body of code as they can (often a whole file,
+but if run at link time, this can be a substantial portion of the whole
+program). It also supports and includes “per-function” passes which just
+operate on a single function at a time, without looking at other
+functions. For more information on passes and how they are run, see the
+<a class="reference external" href="../WritingAnLLVMPass.html">How to Write a Pass</a> document and the
+<a class="reference external" href="../Passes.html">List of LLVM Passes</a>.</p>
+<p>For Kaleidoscope, we are currently generating functions on the fly, one
+at a time, as the user types them in. We aren’t shooting for the
+ultimate optimization experience in this setting, but we also want to
+catch the easy and quick stuff where possible. As such, we will choose
+to run a few per-function optimizations as the user types the function
+in. If we wanted to make a “static Kaleidoscope compiler”, we would use
+exactly the code we have now, except that we would defer running the
+optimizer until the entire file has been parsed.</p>
+<p>In order to get per-function optimizations going, we need to set up a
+<a class="reference external" href="../WritingAnLLVMPass.html#what-passmanager-doesr">FunctionPassManager</a> to hold
+and organize the LLVM optimizations that we want to run. Once we have
+that, we can add a set of optimizations to run. We’ll need a new
+FunctionPassManager for each module that we want to optimize, so we’ll
+write a function to create and initialize both the module and pass manager
+for us:</p>
+<div class="highlight-c++"><div class="highlight"><pre><span class="kt">void</span> <span class="nf">InitializeModuleAndPassManager</span><span class="p">(</span><span class="kt">void</span><span class="p">)</span> <span class="p">{</span>
+ <span class="c1">// Open a new module.</span>
+ <span class="n">TheModule</span> <span class="o">=</span> <span class="n">llvm</span><span class="o">::</span><span class="n">make_unique</span><span class="o"><</span><span class="n">Module</span><span class="o">></span><span class="p">(</span><span class="s">"my cool jit"</span><span class="p">,</span> <span class="n">getGlobalContext</span><span class="p">());</span>
+ <span class="n">TheModule</span><span class="o">-></span><span class="n">setDataLayout</span><span class="p">(</span><span class="n">TheJIT</span><span class="o">-></span><span class="n">getTargetMachine</span><span class="p">().</span><span class="n">createDataLayout</span><span class="p">());</span>
+
+ <span class="c1">// Create a new pass manager attached to it.</span>
+ <span class="n">TheFPM</span> <span class="o">=</span> <span class="n">llvm</span><span class="o">::</span><span class="n">make_unique</span><span class="o"><</span><span class="n">FunctionPassManager</span><span class="o">></span><span class="p">(</span><span class="n">TheModule</span><span class="p">.</span><span class="n">get</span><span class="p">());</span>
+
+ <span class="c1">// Provide basic AliasAnalysis support for GVN.</span>
+ <span class="n">TheFPM</span><span class="p">.</span><span class="n">add</span><span class="p">(</span><span class="n">createBasicAliasAnalysisPass</span><span class="p">());</span>
+ <span class="c1">// Do simple "peephole" optimizations and bit-twiddling optzns.</span>
+ <span class="n">TheFPM</span><span class="p">.</span><span class="n">add</span><span class="p">(</span><span class="n">createInstructionCombiningPass</span><span class="p">());</span>
+ <span class="c1">// Reassociate expressions.</span>
+ <span class="n">TheFPM</span><span class="p">.</span><span class="n">add</span><span class="p">(</span><span class="n">createReassociatePass</span><span class="p">());</span>
+ <span class="c1">// Eliminate Common SubExpressions.</span>
+ <span class="n">TheFPM</span><span class="p">.</span><span class="n">add</span><span class="p">(</span><span class="n">createGVNPass</span><span class="p">());</span>
+ <span class="c1">// Simplify the control flow graph (deleting unreachable blocks, etc).</span>
+ <span class="n">TheFPM</span><span class="p">.</span><span class="n">add</span><span class="p">(</span><span class="n">createCFGSimplificationPass</span><span class="p">());</span>
+
+ <span class="n">TheFPM</span><span class="p">.</span><span class="n">doInitialization</span><span class="p">();</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+<p>This code initializes the global module <tt class="docutils literal"><span class="pre">TheModule</span></tt>, and the function pass
+manager <tt class="docutils literal"><span class="pre">TheFPM</span></tt>, which is attached to <tt class="docutils literal"><span class="pre">TheModule</span></tt>. Once the pass manager is
+set up, we use a series of “add” calls to add a bunch of LLVM passes.</p>
+<p>In this case, we choose to add five passes: one analysis pass (alias analysis),
+and four optimization passes. The passes we choose here are a pretty standard set
+of “cleanup” optimizations that are useful for a wide variety of code. I won’t
+delve into what they do but, believe me, they are a good starting place :).</p>
+<p>Once the PassManager is set up, we need to make use of it. We do this by
+running it after our newly created function is constructed (in
+<tt class="docutils literal"><span class="pre">FunctionAST::codegen()</span></tt>), but before it is returned to the client:</p>
+<div class="highlight-c++"><div class="highlight"><pre><span class="k">if</span> <span class="p">(</span><span class="n">Value</span> <span class="o">*</span><span class="n">RetVal</span> <span class="o">=</span> <span class="n">Body</span><span class="o">-></span><span class="n">codegen</span><span class="p">())</span> <span class="p">{</span>
+ <span class="c1">// Finish off the function.</span>
+ <span class="n">Builder</span><span class="p">.</span><span class="n">CreateRet</span><span class="p">(</span><span class="n">RetVal</span><span class="p">);</span>
+
+ <span class="c1">// Validate the generated code, checking for consistency.</span>
+ <span class="n">verifyFunction</span><span class="p">(</span><span class="o">*</span><span class="n">TheFunction</span><span class="p">);</span>
+
+ <span class="c1">// Optimize the function.</span>
+ <span class="n">TheFPM</span><span class="o">-></span><span class="n">run</span><span class="p">(</span><span class="o">*</span><span class="n">TheFunction</span><span class="p">);</span>
+
+ <span class="k">return</span> <span class="n">TheFunction</span><span class="p">;</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+<p>As you can see, this is pretty straightforward. The
+<tt class="docutils literal"><span class="pre">FunctionPassManager</span></tt> optimizes and updates the LLVM Function* in
+place, improving (hopefully) its body. With this in place, we can try
+our test above again:</p>
+<div class="highlight-python"><div class="highlight"><pre>ready> def test(x) (1+2+x)*(x+(1+2));
+ready> Read function definition:
+define double @test(double %x) {
+entry:
+ %addtmp = fadd double %x, 3.000000e+00
+ %multmp = fmul double %addtmp, %addtmp
+ ret double %multmp
+}
+</pre></div>
+</div>
+<p>As expected, we now get our nicely optimized code, saving a floating
+point add instruction from every execution of this function.</p>
+<p>LLVM provides a wide variety of optimizations that can be used in
+certain circumstances. Some <a class="reference external" href="../Passes.html">documentation about the various
+passes</a> is available, but it isn’t very complete.
+Another good source of ideas can come from looking at the passes that
+<tt class="docutils literal"><span class="pre">Clang</span></tt> runs to get started. The “<tt class="docutils literal"><span class="pre">opt</span></tt>” tool allows you to
+experiment with passes from the command line, so you can see if they do
+anything.</p>
+<p>Now that we have reasonable code coming out of our front-end, lets talk
+about executing it!</p>
+</div>
+<div class="section" id="adding-a-jit-compiler">
+<h2><a class="toc-backref" href="#id4">4.4. Adding a JIT Compiler</a><a class="headerlink" href="#adding-a-jit-compiler" title="Permalink to this headline">¶</a></h2>
+<p>Code that is available in LLVM IR can have a wide variety of tools
+applied to it. For example, you can run optimizations on it (as we did
+above), you can dump it out in textual or binary forms, you can compile
+the code to an assembly file (.s) for some target, or you can JIT
+compile it. The nice thing about the LLVM IR representation is that it
+is the “common currency” between many different parts of the compiler.</p>
+<p>In this section, we’ll add JIT compiler support to our interpreter. The
+basic idea that we want for Kaleidoscope is to have the user enter
+function bodies as they do now, but immediately evaluate the top-level
+expressions they type in. For example, if they type in “1 + 2;”, we
+should evaluate and print out 3. If they define a function, they should
+be able to call it from the command line.</p>
+<p>In order to do this, we first declare and initialize the JIT. This is
+done by adding a global variable <tt class="docutils literal"><span class="pre">TheJIT</span></tt>, and initializing it in
+<tt class="docutils literal"><span class="pre">main</span></tt>:</p>
+<div class="highlight-c++"><div class="highlight"><pre><span class="k">static</span> <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">KaleidoscopeJIT</span><span class="o">></span> <span class="n">TheJIT</span><span class="p">;</span>
+<span class="p">...</span>
+<span class="kt">int</span> <span class="n">main</span><span class="p">()</span> <span class="p">{</span>
+ <span class="p">..</span>
+ <span class="n">TheJIT</span> <span class="o">=</span> <span class="n">llvm</span><span class="o">::</span><span class="n">make_unique</span><span class="o"><</span><span class="n">KaleidoscopeJIT</span><span class="o">></span><span class="p">();</span>
+
+ <span class="c1">// Run the main "interpreter loop" now.</span>
+ <span class="n">MainLoop</span><span class="p">();</span>
+
+ <span class="k">return</span> <span class="mi">0</span><span class="p">;</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+<p>The KaleidoscopeJIT class is a simple JIT built specifically for these
+tutorials. In later chapters we will look at how it works and extend it with
+new features, but for now we will take it as given. Its API is very simple::
+<tt class="docutils literal"><span class="pre">addModule</span></tt> adds an LLVM IR module to the JIT, making its functions
+available for execution; <tt class="docutils literal"><span class="pre">removeModule</span></tt> removes a module, freeing any
+memory associated with the code in that module; and <tt class="docutils literal"><span class="pre">findSymbol</span></tt> allows us
+to look up pointers to the compiled code.</p>
+<p>We can take this simple API and change our code that parses top-level expressions to
+look like this:</p>
+<div class="highlight-c++"><div class="highlight"><pre><span class="k">static</span> <span class="kt">void</span> <span class="nf">HandleTopLevelExpression</span><span class="p">()</span> <span class="p">{</span>
+ <span class="c1">// Evaluate a top-level expression into an anonymous function.</span>
+ <span class="k">if</span> <span class="p">(</span><span class="k">auto</span> <span class="n">FnAST</span> <span class="o">=</span> <span class="n">ParseTopLevelExpr</span><span class="p">())</span> <span class="p">{</span>
+ <span class="k">if</span> <span class="p">(</span><span class="n">FnAST</span><span class="o">-></span><span class="n">codegen</span><span class="p">())</span> <span class="p">{</span>
+
+ <span class="c1">// JIT the module containing the anonymous expression, keeping a handle so</span>
+ <span class="c1">// we can free it later.</span>
+ <span class="k">auto</span> <span class="n">H</span> <span class="o">=</span> <span class="n">TheJIT</span><span class="o">-></span><span class="n">addModule</span><span class="p">(</span><span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">TheModule</span><span class="p">));</span>
+ <span class="n">InitializeModuleAndPassManager</span><span class="p">();</span>
+
+ <span class="c1">// Search the JIT for the __anon_expr symbol.</span>
+ <span class="k">auto</span> <span class="n">ExprSymbol</span> <span class="o">=</span> <span class="n">TheJIT</span><span class="o">-></span><span class="n">findSymbol</span><span class="p">(</span><span class="s">"__anon_expr"</span><span class="p">);</span>
+ <span class="n">assert</span><span class="p">(</span><span class="n">ExprSymbol</span> <span class="o">&&</span> <span class="s">"Function not found"</span><span class="p">);</span>
+
+ <span class="c1">// Get the symbol's address and cast it to the right type (takes no</span>
+ <span class="c1">// arguments, returns a double) so we can call it as a native function.</span>
+ <span class="kt">double</span> <span class="p">(</span><span class="o">*</span><span class="n">FP</span><span class="p">)()</span> <span class="o">=</span> <span class="p">(</span><span class="kt">double</span> <span class="p">(</span><span class="o">*</span><span class="p">)())(</span><span class="kt">intptr_t</span><span class="p">)</span><span class="n">ExprSymbol</span><span class="p">.</span><span class="n">getAddress</span><span class="p">();</span>
+ <span class="n">fprintf</span><span class="p">(</span><span class="n">stderr</span><span class="p">,</span> <span class="s">"Evaluated to %f</span><span class="se">\n</span><span class="s">"</span><span class="p">,</span> <span class="n">FP</span><span class="p">());</span>
+
+ <span class="c1">// Delete the anonymous expression module from the JIT.</span>
+ <span class="n">TheJIT</span><span class="o">-></span><span class="n">removeModule</span><span class="p">(</span><span class="n">H</span><span class="p">);</span>
+ <span class="p">}</span>
+</pre></div>
+</div>
+<p>If parsing and codegen succeeed, the next step is to add the module containing
+the top-level expression to the JIT. We do this by calling addModule, which
+triggers code generation for all the functions in the module, and returns a
+handle that can be used to remove the module from the JIT later. Once the module
+has been added to the JIT it can no longer be modified, so we also open a new
+module to hold subsequent code by calling <tt class="docutils literal"><span class="pre">InitializeModuleAndPassManager()</span></tt>.</p>
+<p>Once we’ve added the module to the JIT we need to get a pointer to the final
+generated code. We do this by calling the JIT’s findSymbol method, and passing
+the name of the top-level expression function: <tt class="docutils literal"><span class="pre">__anon_expr</span></tt>. Since we just
+added this function, we assert that findSymbol returned a result.</p>
+<p>Next, we get the in-memory address of the <tt class="docutils literal"><span class="pre">__anon_expr</span></tt> function by calling
+<tt class="docutils literal"><span class="pre">getAddress()</span></tt> on the symbol. Recall that we compile top-level expressions
+into a self-contained LLVM function that takes no arguments and returns the
+computed double. Because the LLVM JIT compiler matches the native platform ABI,
+this means that you can just cast the result pointer to a function pointer of
+that type and call it directly. This means, there is no difference between JIT
+compiled code and native machine code that is statically linked into your
+application.</p>
+<p>Finally, since we don’t support re-evaluation of top-level expressions, we
+remove the module from the JIT when we’re done to free the associated memory.
+Recall, however, that the module we created a few lines earlier (via
+<tt class="docutils literal"><span class="pre">InitializeModuleAndPassManager</span></tt>) is still open and waiting for new code to be
+added.</p>
+<p>With just these two changes, lets see how Kaleidoscope works now!</p>
+<div class="highlight-python"><div class="highlight"><pre>ready> 4+5;
+Read top-level expression:
+define double @0() {
+entry:
+ ret double 9.000000e+00
+}
+
+Evaluated to 9.000000
+</pre></div>
+</div>
+<p>Well this looks like it is basically working. The dump of the function
+shows the “no argument function that always returns double” that we
+synthesize for each top-level expression that is typed in. This
+demonstrates very basic functionality, but can we do more?</p>
+<div class="highlight-python"><div class="highlight"><pre>ready> def testfunc(x y) x + y*2;
+Read function definition:
+define double @testfunc(double %x, double %y) {
+entry:
+ %multmp = fmul double %y, 2.000000e+00
+ %addtmp = fadd double %multmp, %x
+ ret double %addtmp
+}
+
+ready> testfunc(4, 10);
+Read top-level expression:
+define double @1() {
+entry:
+ %calltmp = call double @testfunc(double 4.000000e+00, double 1.000000e+01)
+ ret double %calltmp
+}
+
+Evaluated to 24.000000
+
+ready> testfunc(5, 10);
+ready> LLVM ERROR: Program used external function 'testfunc' which could not be resolved!
+</pre></div>
+</div>
+<p>Function definitions and calls also work, but something went very wrong on that
+last line. The call looks valid, so what happened? As you may have guessed from
+the the API a Module is a unit of allocation for the JIT, and testfunc was part
+of the same module that contained anonymous expression. When we removed that
+module from the JIT to free the memory for the anonymous expression, we deleted
+the definition of <tt class="docutils literal"><span class="pre">testfunc</span></tt> along with it. Then, when we tried to call
+testfunc a second time, the JIT could no longer find it.</p>
+<p>The easiest way to fix this is to put the anonymous expression in a separate
+module from the rest of the function definitions. The JIT will happily resolve
+function calls across module boundaries, as long as each of the functions called
+has a prototype, and is added to the JIT before it is called. By putting the
+anonymous expression in a different module we can delete it without affecting
+the rest of the functions.</p>
+<p>In fact, we’re going to go a step further and put every function in its own
+module. Doing so allows us to exploit a useful property of the KaleidoscopeJIT
+that will make our environment more REPL-like: Functions can be added to the
+JIT more than once (unlike a module where every function must have a unique
+definition). When you look up a symbol in KaleidoscopeJIT it will always return
+the most recent definition:</p>
+<div class="highlight-python"><div class="highlight"><pre>ready> def foo(x) x + 1;
+Read function definition:
+define double @foo(double %x) {
+entry:
+ %addtmp = fadd double %x, 1.000000e+00
+ ret double %addtmp
+}
+
+ready> foo(2);
+Evaluated to 3.000000
+
+ready> def foo(x) x + 2;
+define double @foo(double %x) {
+entry:
+ %addtmp = fadd double %x, 2.000000e+00
+ ret double %addtmp
+}
+
+ready> foo(2);
+Evaluated to 4.000000
+</pre></div>
+</div>
+<p>To allow each function to live in its own module we’ll need a way to
+re-generate previous function declarations into each new module we open:</p>
+<div class="highlight-c++"><div class="highlight"><pre><span class="k">static</span> <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">KaleidoscopeJIT</span><span class="o">></span> <span class="n">TheJIT</span><span class="p">;</span>
+
+<span class="p">...</span>
+
+<span class="n">Function</span> <span class="o">*</span><span class="n">getFunction</span><span class="p">(</span><span class="n">std</span><span class="o">::</span><span class="n">string</span> <span class="n">Name</span><span class="p">)</span> <span class="p">{</span>
+ <span class="c1">// First, see if the function has already been added to the current module.</span>
+ <span class="k">if</span> <span class="p">(</span><span class="k">auto</span> <span class="o">*</span><span class="n">F</span> <span class="o">=</span> <span class="n">TheModule</span><span class="o">-></span><span class="n">getFunction</span><span class="p">(</span><span class="n">Name</span><span class="p">))</span>
+ <span class="k">return</span> <span class="n">F</span><span class="p">;</span>
+
+ <span class="c1">// If not, check whether we can codegen the declaration from some existing</span>
+ <span class="c1">// prototype.</span>
+ <span class="k">auto</span> <span class="n">FI</span> <span class="o">=</span> <span class="n">FunctionProtos</span><span class="p">.</span><span class="n">find</span><span class="p">(</span><span class="n">Name</span><span class="p">);</span>
+ <span class="k">if</span> <span class="p">(</span><span class="n">FI</span> <span class="o">!=</span> <span class="n">FunctionProtos</span><span class="p">.</span><span class="n">end</span><span class="p">())</span>
+ <span class="k">return</span> <span class="n">FI</span><span class="o">-></span><span class="n">second</span><span class="o">-></span><span class="n">codegen</span><span class="p">();</span>
+
+ <span class="c1">// If no existing prototype exists, return null.</span>
+ <span class="k">return</span> <span class="n">nullptr</span><span class="p">;</span>
+<span class="p">}</span>
+
+<span class="p">...</span>
+
+<span class="n">Value</span> <span class="o">*</span><span class="n">CallExprAST</span><span class="o">::</span><span class="n">codegen</span><span class="p">()</span> <span class="p">{</span>
+ <span class="c1">// Look up the name in the global module table.</span>
+ <span class="n">Function</span> <span class="o">*</span><span class="n">CalleeF</span> <span class="o">=</span> <span class="n">getFunction</span><span class="p">(</span><span class="n">Callee</span><span class="p">);</span>
+
+<span class="p">...</span>
+
+<span class="n">Function</span> <span class="o">*</span><span class="n">FunctionAST</span><span class="o">::</span><span class="n">codegen</span><span class="p">()</span> <span class="p">{</span>
+ <span class="c1">// Transfer ownership of the prototype to the FunctionProtos map, but keep a</span>
+ <span class="c1">// reference to it for use below.</span>
+ <span class="k">auto</span> <span class="o">&</span><span class="n">P</span> <span class="o">=</span> <span class="o">*</span><span class="n">Proto</span><span class="p">;</span>
+ <span class="n">FunctionProtos</span><span class="p">[</span><span class="n">Proto</span><span class="o">-></span><span class="n">getName</span><span class="p">()]</span> <span class="o">=</span> <span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">Proto</span><span class="p">);</span>
+ <span class="n">Function</span> <span class="o">*</span><span class="n">TheFunction</span> <span class="o">=</span> <span class="n">getFunction</span><span class="p">(</span><span class="n">P</span><span class="p">.</span><span class="n">getName</span><span class="p">());</span>
+ <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="n">TheFunction</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">nullptr</span><span class="p">;</span>
+</pre></div>
+</div>
+<p>To enable this, we’ll start by adding a new global, <tt class="docutils literal"><span class="pre">FunctionProtos</span></tt>, that
+holds the most recent prototype for each function. We’ll also add a convenience
+method, <tt class="docutils literal"><span class="pre">getFunction()</span></tt>, to replace calls to <tt class="docutils literal"><span class="pre">TheModule->getFunction()</span></tt>.
+Our convenience method searches <tt class="docutils literal"><span class="pre">TheModule</span></tt> for an existing function
+declaration, falling back to generating a new declaration from FunctionProtos if
+it doesn’t find one. In <tt class="docutils literal"><span class="pre">CallExprAST::codegen()</span></tt> we just need to replace the
+call to <tt class="docutils literal"><span class="pre">TheModule->getFunction()</span></tt>. In <tt class="docutils literal"><span class="pre">FunctionAST::codegen()</span></tt> we need to
+update the FunctionProtos map first, then call <tt class="docutils literal"><span class="pre">getFunction()</span></tt>. With this
+done, we can always obtain a function declaration in the current module for any
+previously declared function.</p>
+<p>We also need to update HandleDefinition and HandleExtern:</p>
+<div class="highlight-c++"><div class="highlight"><pre><span class="k">static</span> <span class="kt">void</span> <span class="nf">HandleDefinition</span><span class="p">()</span> <span class="p">{</span>
+ <span class="k">if</span> <span class="p">(</span><span class="k">auto</span> <span class="n">FnAST</span> <span class="o">=</span> <span class="n">ParseDefinition</span><span class="p">())</span> <span class="p">{</span>
+ <span class="k">if</span> <span class="p">(</span><span class="k">auto</span> <span class="o">*</span><span class="n">FnIR</span> <span class="o">=</span> <span class="n">FnAST</span><span class="o">-></span><span class="n">codegen</span><span class="p">())</span> <span class="p">{</span>
+ <span class="n">fprintf</span><span class="p">(</span><span class="n">stderr</span><span class="p">,</span> <span class="s">"Read function definition:"</span><span class="p">);</span>
+ <span class="n">FnIR</span><span class="o">-></span><span class="n">dump</span><span class="p">();</span>
+ <span class="n">TheJIT</span><span class="o">-></span><span class="n">addModule</span><span class="p">(</span><span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">TheModule</span><span class="p">));</span>
+ <span class="n">InitializeModuleAndPassManager</span><span class="p">();</span>
+ <span class="p">}</span>
+ <span class="p">}</span> <span class="k">else</span> <span class="p">{</span>
+ <span class="c1">// Skip token for error recovery.</span>
+ <span class="n">getNextToken</span><span class="p">();</span>
+ <span class="p">}</span>
+<span class="p">}</span>
+
+<span class="k">static</span> <span class="kt">void</span> <span class="nf">HandleExtern</span><span class="p">()</span> <span class="p">{</span>
+ <span class="k">if</span> <span class="p">(</span><span class="k">auto</span> <span class="n">ProtoAST</span> <span class="o">=</span> <span class="n">ParseExtern</span><span class="p">())</span> <span class="p">{</span>
+ <span class="k">if</span> <span class="p">(</span><span class="k">auto</span> <span class="o">*</span><span class="n">FnIR</span> <span class="o">=</span> <span class="n">ProtoAST</span><span class="o">-></span><span class="n">codegen</span><span class="p">())</span> <span class="p">{</span>
+ <span class="n">fprintf</span><span class="p">(</span><span class="n">stderr</span><span class="p">,</span> <span class="s">"Read extern: "</span><span class="p">);</span>
+ <span class="n">FnIR</span><span class="o">-></span><span class="n">dump</span><span class="p">();</span>
+ <span class="n">FunctionProtos</span><span class="p">[</span><span class="n">ProtoAST</span><span class="o">-></span><span class="n">getName</span><span class="p">()]</span> <span class="o">=</span> <span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">ProtoAST</span><span class="p">);</span>
+ <span class="p">}</span>
+ <span class="p">}</span> <span class="k">else</span> <span class="p">{</span>
+ <span class="c1">// Skip token for error recovery.</span>
+ <span class="n">getNextToken</span><span class="p">();</span>
+ <span class="p">}</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+<p>In HandleDefinition, we add two lines to transfer the newly defined function to
+the JIT and open a new module. In HandleExtern, we just need to add one line to
+add the prototype to FunctionProtos.</p>
+<p>With these changes made, lets try our REPL again (I removed the dump of the
+anonymous functions this time, you should get the idea by now :) :</p>
+<div class="highlight-python"><div class="highlight"><pre>ready> def foo(x) x + 1;
+ready> foo(2);
+Evaluated to 3.000000
+
+ready> def foo(x) x + 2;
+ready> foo(2);
+Evaluated to 4.000000
+</pre></div>
+</div>
+<p>It works!</p>
+<p>Even with this simple code, we get some surprisingly powerful capabilities -
+check this out:</p>
+<div class="highlight-python"><div class="highlight"><pre>ready> extern sin(x);
+Read extern:
+declare double @sin(double)
+
+ready> extern cos(x);
+Read extern:
+declare double @cos(double)
+
+ready> sin(1.0);
+Read top-level expression:
+define double @2() {
+entry:
+ ret double 0x3FEAED548F090CEE
+}
+
+Evaluated to 0.841471
+
+ready> def foo(x) sin(x)*sin(x) + cos(x)*cos(x);
+Read function definition:
+define double @foo(double %x) {
+entry:
+ %calltmp = call double @sin(double %x)
+ %multmp = fmul double %calltmp, %calltmp
+ %calltmp2 = call double @cos(double %x)
+ %multmp4 = fmul double %calltmp2, %calltmp2
+ %addtmp = fadd double %multmp, %multmp4
+ ret double %addtmp
+}
+
+ready> foo(4.0);
+Read top-level expression:
+define double @3() {
+entry:
+ %calltmp = call double @foo(double 4.000000e+00)
+ ret double %calltmp
+}
+
+Evaluated to 1.000000
+</pre></div>
+</div>
+<p>Whoa, how does the JIT know about sin and cos? The answer is surprisingly
+simple: The KaleidoscopeJIT has a straightforward symbol resolution rule that
+it uses to find symbols that aren’t available in any given module: First
+it searches all the modules that have already been added to the JIT, from the
+most recent to the oldest, to find the newest definition. If no definition is
+found inside the JIT, it falls back to calling “<tt class="docutils literal"><span class="pre">dlsym("sin")</span></tt>” on the
+Kaleidoscope process itself. Since “<tt class="docutils literal"><span class="pre">sin</span></tt>” is defined within the JIT’s
+address space, it simply patches up calls in the module to call the libm
+version of <tt class="docutils literal"><span class="pre">sin</span></tt> directly.</p>
+<p>In the future we’ll see how tweaking this symbol resolution rule can be used to
+enable all sorts of useful features, from security (restricting the set of
+symbols available to JIT’d code), to dynamic code generation based on symbol
+names, and even lazy compilation.</p>
+<p>One immediate benefit of the symbol resolution rule is that we can now extend
+the language by writing arbitrary C++ code to implement operations. For example,
+if we add:</p>
+<div class="highlight-c++"><div class="highlight"><pre><span class="c1">/// putchard - putchar that takes a double and returns 0.</span>
+<span class="k">extern</span> <span class="s">"C"</span> <span class="kt">double</span> <span class="n">putchard</span><span class="p">(</span><span class="kt">double</span> <span class="n">X</span><span class="p">)</span> <span class="p">{</span>
+ <span class="n">fputc</span><span class="p">((</span><span class="kt">char</span><span class="p">)</span><span class="n">X</span><span class="p">,</span> <span class="n">stderr</span><span class="p">);</span>
+ <span class="k">return</span> <span class="mi">0</span><span class="p">;</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+<p>Now we can produce simple output to the console by using things like:
+“<tt class="docutils literal"><span class="pre">extern</span> <span class="pre">putchard(x);</span> <span class="pre">putchard(120);</span></tt>”, which prints a lowercase ‘x’
+on the console (120 is the ASCII code for ‘x’). Similar code could be
+used to implement file I/O, console input, and many other capabilities
+in Kaleidoscope.</p>
+<p>This completes the JIT and optimizer chapter of the Kaleidoscope
+tutorial. At this point, we can compile a non-Turing-complete
+programming language, optimize and JIT compile it in a user-driven way.
+Next up we’ll look into <a class="reference external" href="LangImpl5.html">extending the language with control flow
+constructs</a>, tackling some interesting LLVM IR issues
+along the way.</p>
+</div>
+<div class="section" id="full-code-listing">
+<h2><a class="toc-backref" href="#id5">4.5. Full Code Listing</a><a class="headerlink" href="#full-code-listing" title="Permalink to this headline">¶</a></h2>
+<p>Here is the complete code listing for our running example, enhanced with
+the LLVM JIT and optimizer. To build this example, use:</p>
+<div class="highlight-bash"><div class="highlight"><pre><span class="c"># Compile</span>
+clang++ -g toy.cpp <span class="sb">`</span>llvm-config --cxxflags --ldflags --system-libs --libs core mcjit native<span class="sb">`</span> -O3 -o toy
+<span class="c"># Run</span>
+./toy
+</pre></div>
+</div>
+<p>If you are compiling this on Linux, make sure to add the “-rdynamic”
+option as well. This makes sure that the external functions are resolved
+properly at runtime.</p>
+<p>Here is the code:</p>
+<div class="highlight-c++"><div class="highlight"><pre><span class="cp">#include "llvm/ADT/STLExtras.h"</span>
+<span class="cp">#include "llvm/Analysis/Passes.h"</span>
+<span class="cp">#include "llvm/IR/IRBuilder.h"</span>
+<span class="cp">#include "llvm/IR/LLVMContext.h"</span>
+<span class="cp">#include "llvm/IR/LegacyPassManager.h"</span>
+<span class="cp">#include "llvm/IR/Module.h"</span>
+<span class="cp">#include "llvm/IR/Verifier.h"</span>
+<span class="cp">#include "llvm/Support/TargetSelect.h"</span>
+<span class="cp">#include "llvm/Transforms/Scalar.h"</span>
+<span class="cp">#include <cctype></span>
+<span class="cp">#include <cstdio></span>
+<span class="cp">#include <map></span>
+<span class="cp">#include <string></span>
+<span class="cp">#include <vector></span>
+<span class="cp">#include "../include/KaleidoscopeJIT.h"</span>
+
+<span class="k">using</span> <span class="k">namespace</span> <span class="n">llvm</span><span class="p">;</span>
+<span class="k">using</span> <span class="k">namespace</span> <span class="n">llvm</span><span class="o">::</span><span class="n">orc</span><span class="p">;</span>
+
+<span class="c1">//===----------------------------------------------------------------------===//</span>
+<span class="c1">// Lexer</span>
+<span class="c1">//===----------------------------------------------------------------------===//</span>
+
+<span class="c1">// The lexer returns tokens [0-255] if it is an unknown character, otherwise one</span>
+<span class="c1">// of these for known things.</span>
+<span class="k">enum</span> <span class="n">Token</span> <span class="p">{</span>
+ <span class="n">tok_eof</span> <span class="o">=</span> <span class="o">-</span><span class="mi">1</span><span class="p">,</span>
+
+ <span class="c1">// commands</span>
+ <span class="n">tok_def</span> <span class="o">=</span> <span class="o">-</span><span class="mi">2</span><span class="p">,</span>
+ <span class="n">tok_extern</span> <span class="o">=</span> <span class="o">-</span><span class="mi">3</span><span class="p">,</span>
+
+ <span class="c1">// primary</span>
+ <span class="n">tok_identifier</span> <span class="o">=</span> <span class="o">-</span><span class="mi">4</span><span class="p">,</span>
+ <span class="n">tok_number</span> <span class="o">=</span> <span class="o">-</span><span class="mi">5</span>
+<span class="p">};</span>
+
+<span class="k">static</span> <span class="n">std</span><span class="o">::</span><span class="n">string</span> <span class="n">IdentifierStr</span><span class="p">;</span> <span class="c1">// Filled in if tok_identifier</span>
+<span class="k">static</span> <span class="kt">double</span> <span class="n">NumVal</span><span class="p">;</span> <span class="c1">// Filled in if tok_number</span>
+
+<span class="c1">/// gettok - Return the next token from standard input.</span>
+<span class="k">static</span> <span class="kt">int</span> <span class="nf">gettok</span><span class="p">()</span> <span class="p">{</span>
+ <span class="k">static</span> <span class="kt">int</span> <span class="n">LastChar</span> <span class="o">=</span> <span class="sc">' '</span><span class="p">;</span>
+
+ <span class="c1">// Skip any whitespace.</span>
+ <span class="k">while</span> <span class="p">(</span><span class="n">isspace</span><span class="p">(</span><span class="n">LastChar</span><span class="p">))</span>
+ <span class="n">LastChar</span> <span class="o">=</span> <span class="n">getchar</span><span class="p">();</span>
+
+ <span class="k">if</span> <span class="p">(</span><span class="n">isalpha</span><span class="p">(</span><span class="n">LastChar</span><span class="p">))</span> <span class="p">{</span> <span class="c1">// identifier: [a-zA-Z][a-zA-Z0-9]*</span>
+ <span class="n">IdentifierStr</span> <span class="o">=</span> <span class="n">LastChar</span><span class="p">;</span>
+ <span class="k">while</span> <span class="p">(</span><span class="n">isalnum</span><span class="p">((</span><span class="n">LastChar</span> <span class="o">=</span> <span class="n">getchar</span><span class="p">())))</span>
+ <span class="n">IdentifierStr</span> <span class="o">+=</span> <span class="n">LastChar</span><span class="p">;</span>
+
+ <span class="k">if</span> <span class="p">(</span><span class="n">IdentifierStr</span> <span class="o">==</span> <span class="s">"def"</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">tok_def</span><span class="p">;</span>
+ <span class="k">if</span> <span class="p">(</span><span class="n">IdentifierStr</span> <span class="o">==</span> <span class="s">"extern"</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">tok_extern</span><span class="p">;</span>
+ <span class="k">return</span> <span class="n">tok_identifier</span><span class="p">;</span>
+ <span class="p">}</span>
+
+ <span class="k">if</span> <span class="p">(</span><span class="n">isdigit</span><span class="p">(</span><span class="n">LastChar</span><span class="p">)</span> <span class="o">||</span> <span class="n">LastChar</span> <span class="o">==</span> <span class="sc">'.'</span><span class="p">)</span> <span class="p">{</span> <span class="c1">// Number: [0-9.]+</span>
+ <span class="n">std</span><span class="o">::</span><span class="n">string</span> <span class="n">NumStr</span><span class="p">;</span>
+ <span class="k">do</span> <span class="p">{</span>
+ <span class="n">NumStr</span> <span class="o">+=</span> <span class="n">LastChar</span><span class="p">;</span>
+ <span class="n">LastChar</span> <span class="o">=</span> <span class="n">getchar</span><span class="p">();</span>
+ <span class="p">}</span> <span class="k">while</span> <span class="p">(</span><span class="n">isdigit</span><span class="p">(</span><span class="n">LastChar</span><span class="p">)</span> <span class="o">||</span> <span class="n">LastChar</span> <span class="o">==</span> <span class="sc">'.'</span><span class="p">);</span>
+
+ <span class="n">NumVal</span> <span class="o">=</span> <span class="n">strtod</span><span class="p">(</span><span class="n">NumStr</span><span class="p">.</span><span class="n">c_str</span><span class="p">(),</span> <span class="n">nullptr</span><span class="p">);</span>
+ <span class="k">return</span> <span class="n">tok_number</span><span class="p">;</span>
+ <span class="p">}</span>
+
+ <span class="k">if</span> <span class="p">(</span><span class="n">LastChar</span> <span class="o">==</span> <span class="sc">'#'</span><span class="p">)</span> <span class="p">{</span>
+ <span class="c1">// Comment until end of line.</span>
+ <span class="k">do</span>
+ <span class="n">LastChar</span> <span class="o">=</span> <span class="n">getchar</span><span class="p">();</span>
+ <span class="k">while</span> <span class="p">(</span><span class="n">LastChar</span> <span class="o">!=</span> <span class="n">EOF</span> <span class="o">&&</span> <span class="n">LastChar</span> <span class="o">!=</span> <span class="sc">'\n'</span> <span class="o">&&</span> <span class="n">LastChar</span> <span class="o">!=</span> <span class="sc">'\r'</span><span class="p">);</span>
+
+ <span class="k">if</span> <span class="p">(</span><span class="n">LastChar</span> <span class="o">!=</span> <span class="n">EOF</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">gettok</span><span class="p">();</span>
+ <span class="p">}</span>
+
+ <span class="c1">// Check for end of file. Don't eat the EOF.</span>
+ <span class="k">if</span> <span class="p">(</span><span class="n">LastChar</span> <span class="o">==</span> <span class="n">EOF</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">tok_eof</span><span class="p">;</span>
+
+ <span class="c1">// Otherwise, just return the character as its ascii value.</span>
+ <span class="kt">int</span> <span class="n">ThisChar</span> <span class="o">=</span> <span class="n">LastChar</span><span class="p">;</span>
+ <span class="n">LastChar</span> <span class="o">=</span> <span class="n">getchar</span><span class="p">();</span>
+ <span class="k">return</span> <span class="n">ThisChar</span><span class="p">;</span>
+<span class="p">}</span>
+
+<span class="c1">//===----------------------------------------------------------------------===//</span>
+<span class="c1">// Abstract Syntax Tree (aka Parse Tree)</span>
+<span class="c1">//===----------------------------------------------------------------------===//</span>
+<span class="k">namespace</span> <span class="p">{</span>
+<span class="c1">/// ExprAST - Base class for all expression nodes.</span>
+<span class="k">class</span> <span class="nc">ExprAST</span> <span class="p">{</span>
+<span class="nl">public:</span>
+ <span class="k">virtual</span> <span class="o">~</span><span class="n">ExprAST</span><span class="p">()</span> <span class="p">{}</span>
+ <span class="k">virtual</span> <span class="n">Value</span> <span class="o">*</span><span class="n">codegen</span><span class="p">()</span> <span class="o">=</span> <span class="mi">0</span><span class="p">;</span>
+<span class="p">};</span>
+
+<span class="c1">/// NumberExprAST - Expression class for numeric literals like "1.0".</span>
+<span class="k">class</span> <span class="nc">NumberExprAST</span> <span class="o">:</span> <span class="k">public</span> <span class="n">ExprAST</span> <span class="p">{</span>
+ <span class="kt">double</span> <span class="n">Val</span><span class="p">;</span>
+
+<span class="nl">public:</span>
+ <span class="n">NumberExprAST</span><span class="p">(</span><span class="kt">double</span> <span class="n">Val</span><span class="p">)</span> <span class="o">:</span> <span class="n">Val</span><span class="p">(</span><span class="n">Val</span><span class="p">)</span> <span class="p">{}</span>
+ <span class="n">Value</span> <span class="o">*</span><span class="n">codegen</span><span class="p">()</span> <span class="n">override</span><span class="p">;</span>
+<span class="p">};</span>
+
+<span class="c1">/// VariableExprAST - Expression class for referencing a variable, like "a".</span>
+<span class="k">class</span> <span class="nc">VariableExprAST</span> <span class="o">:</span> <span class="k">public</span> <span class="n">ExprAST</span> <span class="p">{</span>
+ <span class="n">std</span><span class="o">::</span><span class="n">string</span> <span class="n">Name</span><span class="p">;</span>
+
+<span class="nl">public:</span>
+ <span class="n">VariableExprAST</span><span class="p">(</span><span class="k">const</span> <span class="n">std</span><span class="o">::</span><span class="n">string</span> <span class="o">&</span><span class="n">Name</span><span class="p">)</span> <span class="o">:</span> <span class="n">Name</span><span class="p">(</span><span class="n">Name</span><span class="p">)</span> <span class="p">{}</span>
+ <span class="n">Value</span> <span class="o">*</span><span class="n">codegen</span><span class="p">()</span> <span class="n">override</span><span class="p">;</span>
+<span class="p">};</span>
+
+<span class="c1">/// BinaryExprAST - Expression class for a binary operator.</span>
+<span class="k">class</span> <span class="nc">BinaryExprAST</span> <span class="o">:</span> <span class="k">public</span> <span class="n">ExprAST</span> <span class="p">{</span>
+ <span class="kt">char</span> <span class="n">Op</span><span class="p">;</span>
+ <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">ExprAST</span><span class="o">></span> <span class="n">LHS</span><span class="p">,</span> <span class="n">RHS</span><span class="p">;</span>
+
+<span class="nl">public:</span>
+ <span class="n">BinaryExprAST</span><span class="p">(</span><span class="kt">char</span> <span class="n">Op</span><span class="p">,</span> <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">ExprAST</span><span class="o">></span> <span class="n">LHS</span><span class="p">,</span>
+ <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">ExprAST</span><span class="o">></span> <span class="n">RHS</span><span class="p">)</span>
+ <span class="o">:</span> <span class="n">Op</span><span class="p">(</span><span class="n">Op</span><span class="p">),</span> <span class="n">LHS</span><span class="p">(</span><span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">LHS</span><span class="p">)),</span> <span class="n">RHS</span><span class="p">(</span><span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">RHS</span><span class="p">))</span> <span class="p">{}</span>
+ <span class="n">Value</span> <span class="o">*</span><span class="n">codegen</span><span class="p">()</span> <span class="n">override</span><span class="p">;</span>
+<span class="p">};</span>
+
+<span class="c1">/// CallExprAST - Expression class for function calls.</span>
+<span class="k">class</span> <span class="nc">CallExprAST</span> <span class="o">:</span> <span class="k">public</span> <span class="n">ExprAST</span> <span class="p">{</span>
+ <span class="n">std</span><span class="o">::</span><span class="n">string</span> <span class="n">Callee</span><span class="p">;</span>
+ <span class="n">std</span><span class="o">::</span><span class="n">vector</span><span class="o"><</span><span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">ExprAST</span><span class="o">>></span> <span class="n">Args</span><span class="p">;</span>
+
+<span class="nl">public:</span>
+ <span class="n">CallExprAST</span><span class="p">(</span><span class="k">const</span> <span class="n">std</span><span class="o">::</span><span class="n">string</span> <span class="o">&</span><span class="n">Callee</span><span class="p">,</span>
+ <span class="n">std</span><span class="o">::</span><span class="n">vector</span><span class="o"><</span><span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">ExprAST</span><span class="o">>></span> <span class="n">Args</span><span class="p">)</span>
+ <span class="o">:</span> <span class="n">Callee</span><span class="p">(</span><span class="n">Callee</span><span class="p">),</span> <span class="n">Args</span><span class="p">(</span><span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">Args</span><span class="p">))</span> <span class="p">{}</span>
+ <span class="n">Value</span> <span class="o">*</span><span class="n">codegen</span><span class="p">()</span> <span class="n">override</span><span class="p">;</span>
+<span class="p">};</span>
+
+<span class="c1">/// PrototypeAST - This class represents the "prototype" for a function,</span>
+<span class="c1">/// which captures its name, and its argument names (thus implicitly the number</span>
+<span class="c1">/// of arguments the function takes).</span>
+<span class="k">class</span> <span class="nc">PrototypeAST</span> <span class="p">{</span>
+ <span class="n">std</span><span class="o">::</span><span class="n">string</span> <span class="n">Name</span><span class="p">;</span>
+ <span class="n">std</span><span class="o">::</span><span class="n">vector</span><span class="o"><</span><span class="n">std</span><span class="o">::</span><span class="n">string</span><span class="o">></span> <span class="n">Args</span><span class="p">;</span>
+
+<span class="nl">public:</span>
+ <span class="n">PrototypeAST</span><span class="p">(</span><span class="k">const</span> <span class="n">std</span><span class="o">::</span><span class="n">string</span> <span class="o">&</span><span class="n">Name</span><span class="p">,</span> <span class="n">std</span><span class="o">::</span><span class="n">vector</span><span class="o"><</span><span class="n">std</span><span class="o">::</span><span class="n">string</span><span class="o">></span> <span class="n">Args</span><span class="p">)</span>
+ <span class="o">:</span> <span class="n">Name</span><span class="p">(</span><span class="n">Name</span><span class="p">),</span> <span class="n">Args</span><span class="p">(</span><span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">Args</span><span class="p">))</span> <span class="p">{}</span>
+ <span class="n">Function</span> <span class="o">*</span><span class="n">codegen</span><span class="p">();</span>
+ <span class="k">const</span> <span class="n">std</span><span class="o">::</span><span class="n">string</span> <span class="o">&</span><span class="n">getName</span><span class="p">()</span> <span class="k">const</span> <span class="p">{</span> <span class="k">return</span> <span class="n">Name</span><span class="p">;</span> <span class="p">}</span>
+<span class="p">};</span>
+
+<span class="c1">/// FunctionAST - This class represents a function definition itself.</span>
+<span class="k">class</span> <span class="nc">FunctionAST</span> <span class="p">{</span>
+ <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">PrototypeAST</span><span class="o">></span> <span class="n">Proto</span><span class="p">;</span>
+ <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">ExprAST</span><span class="o">></span> <span class="n">Body</span><span class="p">;</span>
+
+<span class="nl">public:</span>
+ <span class="n">FunctionAST</span><span class="p">(</span><span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">PrototypeAST</span><span class="o">></span> <span class="n">Proto</span><span class="p">,</span>
+ <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">ExprAST</span><span class="o">></span> <span class="n">Body</span><span class="p">)</span>
+ <span class="o">:</span> <span class="n">Proto</span><span class="p">(</span><span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">Proto</span><span class="p">)),</span> <span class="n">Body</span><span class="p">(</span><span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">Body</span><span class="p">))</span> <span class="p">{}</span>
+ <span class="n">Function</span> <span class="o">*</span><span class="n">codegen</span><span class="p">();</span>
+<span class="p">};</span>
+<span class="p">}</span> <span class="c1">// end anonymous namespace</span>
+
+<span class="c1">//===----------------------------------------------------------------------===//</span>
+<span class="c1">// Parser</span>
+<span class="c1">//===----------------------------------------------------------------------===//</span>
+
+<span class="c1">/// CurTok/getNextToken - Provide a simple token buffer. CurTok is the current</span>
+<span class="c1">/// token the parser is looking at. getNextToken reads another token from the</span>
+<span class="c1">/// lexer and updates CurTok with its results.</span>
+<span class="k">static</span> <span class="kt">int</span> <span class="n">CurTok</span><span class="p">;</span>
+<span class="k">static</span> <span class="kt">int</span> <span class="nf">getNextToken</span><span class="p">()</span> <span class="p">{</span> <span class="k">return</span> <span class="n">CurTok</span> <span class="o">=</span> <span class="n">gettok</span><span class="p">();</span> <span class="p">}</span>
+
+<span class="c1">/// BinopPrecedence - This holds the precedence for each binary operator that is</span>
+<span class="c1">/// defined.</span>
+<span class="k">static</span> <span class="n">std</span><span class="o">::</span><span class="n">map</span><span class="o"><</span><span class="kt">char</span><span class="p">,</span> <span class="kt">int</span><span class="o">></span> <span class="n">BinopPrecedence</span><span class="p">;</span>
+
+<span class="c1">/// GetTokPrecedence - Get the precedence of the pending binary operator token.</span>
+<span class="k">static</span> <span class="kt">int</span> <span class="nf">GetTokPrecedence</span><span class="p">()</span> <span class="p">{</span>
+ <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="n">isascii</span><span class="p">(</span><span class="n">CurTok</span><span class="p">))</span>
+ <span class="k">return</span> <span class="o">-</span><span class="mi">1</span><span class="p">;</span>
+
+ <span class="c1">// Make sure it's a declared binop.</span>
+ <span class="kt">int</span> <span class="n">TokPrec</span> <span class="o">=</span> <span class="n">BinopPrecedence</span><span class="p">[</span><span class="n">CurTok</span><span class="p">];</span>
+ <span class="k">if</span> <span class="p">(</span><span class="n">TokPrec</span> <span class="o"><=</span> <span class="mi">0</span><span class="p">)</span>
+ <span class="k">return</span> <span class="o">-</span><span class="mi">1</span><span class="p">;</span>
+ <span class="k">return</span> <span class="n">TokPrec</span><span class="p">;</span>
+<span class="p">}</span>
+
+<span class="c1">/// Error* - These are little helper functions for error handling.</span>
+<span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">ExprAST</span><span class="o">></span> <span class="n">Error</span><span class="p">(</span><span class="k">const</span> <span class="kt">char</span> <span class="o">*</span><span class="n">Str</span><span class="p">)</span> <span class="p">{</span>
+ <span class="n">fprintf</span><span class="p">(</span><span class="n">stderr</span><span class="p">,</span> <span class="s">"Error: %s</span><span class="se">\n</span><span class="s">"</span><span class="p">,</span> <span class="n">Str</span><span class="p">);</span>
+ <span class="k">return</span> <span class="n">nullptr</span><span class="p">;</span>
+<span class="p">}</span>
+
+<span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">PrototypeAST</span><span class="o">></span> <span class="n">ErrorP</span><span class="p">(</span><span class="k">const</span> <span class="kt">char</span> <span class="o">*</span><span class="n">Str</span><span class="p">)</span> <span class="p">{</span>
+ <span class="n">Error</span><span class="p">(</span><span class="n">Str</span><span class="p">);</span>
+ <span class="k">return</span> <span class="n">nullptr</span><span class="p">;</span>
+<span class="p">}</span>
+
+<span class="k">static</span> <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">ExprAST</span><span class="o">></span> <span class="n">ParseExpression</span><span class="p">();</span>
+
+<span class="c1">/// numberexpr ::= number</span>
+<span class="k">static</span> <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">ExprAST</span><span class="o">></span> <span class="n">ParseNumberExpr</span><span class="p">()</span> <span class="p">{</span>
+ <span class="k">auto</span> <span class="n">Result</span> <span class="o">=</span> <span class="n">llvm</span><span class="o">::</span><span class="n">make_unique</span><span class="o"><</span><span class="n">NumberExprAST</span><span class="o">></span><span class="p">(</span><span class="n">NumVal</span><span class="p">);</span>
+ <span class="n">getNextToken</span><span class="p">();</span> <span class="c1">// consume the number</span>
+ <span class="k">return</span> <span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">Result</span><span class="p">);</span>
+<span class="p">}</span>
+
+<span class="c1">/// parenexpr ::= '(' expression ')'</span>
+<span class="k">static</span> <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">ExprAST</span><span class="o">></span> <span class="n">ParseParenExpr</span><span class="p">()</span> <span class="p">{</span>
+ <span class="n">getNextToken</span><span class="p">();</span> <span class="c1">// eat (.</span>
+ <span class="k">auto</span> <span class="n">V</span> <span class="o">=</span> <span class="n">ParseExpression</span><span class="p">();</span>
+ <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="n">V</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">nullptr</span><span class="p">;</span>
+
+ <span class="k">if</span> <span class="p">(</span><span class="n">CurTok</span> <span class="o">!=</span> <span class="sc">')'</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">Error</span><span class="p">(</span><span class="s">"expected ')'"</span><span class="p">);</span>
+ <span class="n">getNextToken</span><span class="p">();</span> <span class="c1">// eat ).</span>
+ <span class="k">return</span> <span class="n">V</span><span class="p">;</span>
+<span class="p">}</span>
+
+<span class="c1">/// identifierexpr</span>
+<span class="c1">/// ::= identifier</span>
+<span class="c1">/// ::= identifier '(' expression* ')'</span>
+<span class="k">static</span> <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">ExprAST</span><span class="o">></span> <span class="n">ParseIdentifierExpr</span><span class="p">()</span> <span class="p">{</span>
+ <span class="n">std</span><span class="o">::</span><span class="n">string</span> <span class="n">IdName</span> <span class="o">=</span> <span class="n">IdentifierStr</span><span class="p">;</span>
+
+ <span class="n">getNextToken</span><span class="p">();</span> <span class="c1">// eat identifier.</span>
+
+ <span class="k">if</span> <span class="p">(</span><span class="n">CurTok</span> <span class="o">!=</span> <span class="sc">'('</span><span class="p">)</span> <span class="c1">// Simple variable ref.</span>
+ <span class="k">return</span> <span class="n">llvm</span><span class="o">::</span><span class="n">make_unique</span><span class="o"><</span><span class="n">VariableExprAST</span><span class="o">></span><span class="p">(</span><span class="n">IdName</span><span class="p">);</span>
+
+ <span class="c1">// Call.</span>
+ <span class="n">getNextToken</span><span class="p">();</span> <span class="c1">// eat (</span>
+ <span class="n">std</span><span class="o">::</span><span class="n">vector</span><span class="o"><</span><span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">ExprAST</span><span class="o">>></span> <span class="n">Args</span><span class="p">;</span>
+ <span class="k">if</span> <span class="p">(</span><span class="n">CurTok</span> <span class="o">!=</span> <span class="sc">')'</span><span class="p">)</span> <span class="p">{</span>
+ <span class="k">while</span> <span class="p">(</span><span class="mi">1</span><span class="p">)</span> <span class="p">{</span>
+ <span class="k">if</span> <span class="p">(</span><span class="k">auto</span> <span class="n">Arg</span> <span class="o">=</span> <span class="n">ParseExpression</span><span class="p">())</span>
+ <span class="n">Args</span><span class="p">.</span><span class="n">push_back</span><span class="p">(</span><span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">Arg</span><span class="p">));</span>
+ <span class="k">else</span>
+ <span class="k">return</span> <span class="n">nullptr</span><span class="p">;</span>
+
+ <span class="k">if</span> <span class="p">(</span><span class="n">CurTok</span> <span class="o">==</span> <span class="sc">')'</span><span class="p">)</span>
+ <span class="k">break</span><span class="p">;</span>
+
+ <span class="k">if</span> <span class="p">(</span><span class="n">CurTok</span> <span class="o">!=</span> <span class="sc">','</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">Error</span><span class="p">(</span><span class="s">"Expected ')' or ',' in argument list"</span><span class="p">);</span>
+ <span class="n">getNextToken</span><span class="p">();</span>
+ <span class="p">}</span>
+ <span class="p">}</span>
+
+ <span class="c1">// Eat the ')'.</span>
+ <span class="n">getNextToken</span><span class="p">();</span>
+
+ <span class="k">return</span> <span class="n">llvm</span><span class="o">::</span><span class="n">make_unique</span><span class="o"><</span><span class="n">CallExprAST</span><span class="o">></span><span class="p">(</span><span class="n">IdName</span><span class="p">,</span> <span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">Args</span><span class="p">));</span>
+<span class="p">}</span>
+
+<span class="c1">/// primary</span>
+<span class="c1">/// ::= identifierexpr</span>
+<span class="c1">/// ::= numberexpr</span>
+<span class="c1">/// ::= parenexpr</span>
+<span class="k">static</span> <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">ExprAST</span><span class="o">></span> <span class="n">ParsePrimary</span><span class="p">()</span> <span class="p">{</span>
+ <span class="k">switch</span> <span class="p">(</span><span class="n">CurTok</span><span class="p">)</span> <span class="p">{</span>
+ <span class="nl">default:</span>
+ <span class="k">return</span> <span class="n">Error</span><span class="p">(</span><span class="s">"unknown token when expecting an expression"</span><span class="p">);</span>
+ <span class="k">case</span> <span class="n">tok_identifier</span>:
+ <span class="k">return</span> <span class="n">ParseIdentifierExpr</span><span class="p">();</span>
+ <span class="k">case</span> <span class="n">tok_number</span>:
+ <span class="k">return</span> <span class="n">ParseNumberExpr</span><span class="p">();</span>
+ <span class="k">case</span> <span class="sc">'('</span>:
+ <span class="k">return</span> <span class="n">ParseParenExpr</span><span class="p">();</span>
+ <span class="p">}</span>
+<span class="p">}</span>
+
+<span class="c1">/// binoprhs</span>
+<span class="c1">/// ::= ('+' primary)*</span>
+<span class="k">static</span> <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">ExprAST</span><span class="o">></span> <span class="n">ParseBinOpRHS</span><span class="p">(</span><span class="kt">int</span> <span class="n">ExprPrec</span><span class="p">,</span>
+ <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">ExprAST</span><span class="o">></span> <span class="n">LHS</span><span class="p">)</span> <span class="p">{</span>
+ <span class="c1">// If this is a binop, find its precedence.</span>
+ <span class="k">while</span> <span class="p">(</span><span class="mi">1</span><span class="p">)</span> <span class="p">{</span>
+ <span class="kt">int</span> <span class="n">TokPrec</span> <span class="o">=</span> <span class="n">GetTokPrecedence</span><span class="p">();</span>
+
+ <span class="c1">// If this is a binop that binds at least as tightly as the current binop,</span>
+ <span class="c1">// consume it, otherwise we are done.</span>
+ <span class="k">if</span> <span class="p">(</span><span class="n">TokPrec</span> <span class="o"><</span> <span class="n">ExprPrec</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">LHS</span><span class="p">;</span>
+
+ <span class="c1">// Okay, we know this is a binop.</span>
+ <span class="kt">int</span> <span class="n">BinOp</span> <span class="o">=</span> <span class="n">CurTok</span><span class="p">;</span>
+ <span class="n">getNextToken</span><span class="p">();</span> <span class="c1">// eat binop</span>
+
+ <span class="c1">// Parse the primary expression after the binary operator.</span>
+ <span class="k">auto</span> <span class="n">RHS</span> <span class="o">=</span> <span class="n">ParsePrimary</span><span class="p">();</span>
+ <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="n">RHS</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">nullptr</span><span class="p">;</span>
+
+ <span class="c1">// If BinOp binds less tightly with RHS than the operator after RHS, let</span>
+ <span class="c1">// the pending operator take RHS as its LHS.</span>
+ <span class="kt">int</span> <span class="n">NextPrec</span> <span class="o">=</span> <span class="n">GetTokPrecedence</span><span class="p">();</span>
+ <span class="k">if</span> <span class="p">(</span><span class="n">TokPrec</span> <span class="o"><</span> <span class="n">NextPrec</span><span class="p">)</span> <span class="p">{</span>
+ <span class="n">RHS</span> <span class="o">=</span> <span class="n">ParseBinOpRHS</span><span class="p">(</span><span class="n">TokPrec</span> <span class="o">+</span> <span class="mi">1</span><span class="p">,</span> <span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">RHS</span><span class="p">));</span>
+ <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="n">RHS</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">nullptr</span><span class="p">;</span>
+ <span class="p">}</span>
+
+ <span class="c1">// Merge LHS/RHS.</span>
+ <span class="n">LHS</span> <span class="o">=</span>
+ <span class="n">llvm</span><span class="o">::</span><span class="n">make_unique</span><span class="o"><</span><span class="n">BinaryExprAST</span><span class="o">></span><span class="p">(</span><span class="n">BinOp</span><span class="p">,</span> <span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">LHS</span><span class="p">),</span> <span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">RHS</span><span class="p">));</span>
+ <span class="p">}</span>
+<span class="p">}</span>
+
+<span class="c1">/// expression</span>
+<span class="c1">/// ::= primary binoprhs</span>
+<span class="c1">///</span>
+<span class="k">static</span> <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">ExprAST</span><span class="o">></span> <span class="n">ParseExpression</span><span class="p">()</span> <span class="p">{</span>
+ <span class="k">auto</span> <span class="n">LHS</span> <span class="o">=</span> <span class="n">ParsePrimary</span><span class="p">();</span>
+ <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="n">LHS</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">nullptr</span><span class="p">;</span>
+
+ <span class="k">return</span> <span class="nf">ParseBinOpRHS</span><span class="p">(</span><span class="mi">0</span><span class="p">,</span> <span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">LHS</span><span class="p">));</span>
+<span class="p">}</span>
+
+<span class="c1">/// prototype</span>
+<span class="c1">/// ::= id '(' id* ')'</span>
+<span class="k">static</span> <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">PrototypeAST</span><span class="o">></span> <span class="n">ParsePrototype</span><span class="p">()</span> <span class="p">{</span>
+ <span class="k">if</span> <span class="p">(</span><span class="n">CurTok</span> <span class="o">!=</span> <span class="n">tok_identifier</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">ErrorP</span><span class="p">(</span><span class="s">"Expected function name in prototype"</span><span class="p">);</span>
+
+ <span class="n">std</span><span class="o">::</span><span class="n">string</span> <span class="n">FnName</span> <span class="o">=</span> <span class="n">IdentifierStr</span><span class="p">;</span>
+ <span class="n">getNextToken</span><span class="p">();</span>
+
+ <span class="k">if</span> <span class="p">(</span><span class="n">CurTok</span> <span class="o">!=</span> <span class="sc">'('</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">ErrorP</span><span class="p">(</span><span class="s">"Expected '(' in prototype"</span><span class="p">);</span>
+
+ <span class="n">std</span><span class="o">::</span><span class="n">vector</span><span class="o"><</span><span class="n">std</span><span class="o">::</span><span class="n">string</span><span class="o">></span> <span class="n">ArgNames</span><span class="p">;</span>
+ <span class="k">while</span> <span class="p">(</span><span class="n">getNextToken</span><span class="p">()</span> <span class="o">==</span> <span class="n">tok_identifier</span><span class="p">)</span>
+ <span class="n">ArgNames</span><span class="p">.</span><span class="n">push_back</span><span class="p">(</span><span class="n">IdentifierStr</span><span class="p">);</span>
+ <span class="k">if</span> <span class="p">(</span><span class="n">CurTok</span> <span class="o">!=</span> <span class="sc">')'</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">ErrorP</span><span class="p">(</span><span class="s">"Expected ')' in prototype"</span><span class="p">);</span>
+
+ <span class="c1">// success.</span>
+ <span class="n">getNextToken</span><span class="p">();</span> <span class="c1">// eat ')'.</span>
+
+ <span class="k">return</span> <span class="n">llvm</span><span class="o">::</span><span class="n">make_unique</span><span class="o"><</span><span class="n">PrototypeAST</span><span class="o">></span><span class="p">(</span><span class="n">FnName</span><span class="p">,</span> <span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">ArgNames</span><span class="p">));</span>
+<span class="p">}</span>
+
+<span class="c1">/// definition ::= 'def' prototype expression</span>
+<span class="k">static</span> <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">FunctionAST</span><span class="o">></span> <span class="n">ParseDefinition</span><span class="p">()</span> <span class="p">{</span>
+ <span class="n">getNextToken</span><span class="p">();</span> <span class="c1">// eat def.</span>
+ <span class="k">auto</span> <span class="n">Proto</span> <span class="o">=</span> <span class="n">ParsePrototype</span><span class="p">();</span>
+ <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="n">Proto</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">nullptr</span><span class="p">;</span>
+
+ <span class="k">if</span> <span class="p">(</span><span class="k">auto</span> <span class="n">E</span> <span class="o">=</span> <span class="n">ParseExpression</span><span class="p">())</span>
+ <span class="k">return</span> <span class="n">llvm</span><span class="o">::</span><span class="n">make_unique</span><span class="o"><</span><span class="n">FunctionAST</span><span class="o">></span><span class="p">(</span><span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">Proto</span><span class="p">),</span> <span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">E</span><span class="p">));</span>
+ <span class="k">return</span> <span class="n">nullptr</span><span class="p">;</span>
+<span class="p">}</span>
+
+<span class="c1">/// toplevelexpr ::= expression</span>
+<span class="k">static</span> <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">FunctionAST</span><span class="o">></span> <span class="n">ParseTopLevelExpr</span><span class="p">()</span> <span class="p">{</span>
+ <span class="k">if</span> <span class="p">(</span><span class="k">auto</span> <span class="n">E</span> <span class="o">=</span> <span class="n">ParseExpression</span><span class="p">())</span> <span class="p">{</span>
+ <span class="c1">// Make an anonymous proto.</span>
+ <span class="k">auto</span> <span class="n">Proto</span> <span class="o">=</span> <span class="n">llvm</span><span class="o">::</span><span class="n">make_unique</span><span class="o"><</span><span class="n">PrototypeAST</span><span class="o">></span><span class="p">(</span><span class="s">"__anon_expr"</span><span class="p">,</span>
+ <span class="n">std</span><span class="o">::</span><span class="n">vector</span><span class="o"><</span><span class="n">std</span><span class="o">::</span><span class="n">string</span><span class="o">></span><span class="p">());</span>
+ <span class="k">return</span> <span class="n">llvm</span><span class="o">::</span><span class="n">make_unique</span><span class="o"><</span><span class="n">FunctionAST</span><span class="o">></span><span class="p">(</span><span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">Proto</span><span class="p">),</span> <span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">E</span><span class="p">));</span>
+ <span class="p">}</span>
+ <span class="k">return</span> <span class="n">nullptr</span><span class="p">;</span>
+<span class="p">}</span>
+
+<span class="c1">/// external ::= 'extern' prototype</span>
+<span class="k">static</span> <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">PrototypeAST</span><span class="o">></span> <span class="n">ParseExtern</span><span class="p">()</span> <span class="p">{</span>
+ <span class="n">getNextToken</span><span class="p">();</span> <span class="c1">// eat extern.</span>
+ <span class="k">return</span> <span class="nf">ParsePrototype</span><span class="p">();</span>
+<span class="p">}</span>
+
+<span class="c1">//===----------------------------------------------------------------------===//</span>
+<span class="c1">// Code Generation</span>
+<span class="c1">//===----------------------------------------------------------------------===//</span>
+
+<span class="k">static</span> <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">Module</span><span class="o">></span> <span class="n">TheModule</span><span class="p">;</span>
+<span class="k">static</span> <span class="n">IRBuilder</span><span class="o"><></span> <span class="n">Builder</span><span class="p">(</span><span class="n">getGlobalContext</span><span class="p">());</span>
+<span class="k">static</span> <span class="n">std</span><span class="o">::</span><span class="n">map</span><span class="o"><</span><span class="n">std</span><span class="o">::</span><span class="n">string</span><span class="p">,</span> <span class="n">Value</span> <span class="o">*></span> <span class="n">NamedValues</span><span class="p">;</span>
+<span class="k">static</span> <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">legacy</span><span class="o">::</span><span class="n">FunctionPassManager</span><span class="o">></span> <span class="n">TheFPM</span><span class="p">;</span>
+<span class="k">static</span> <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">KaleidoscopeJIT</span><span class="o">></span> <span class="n">TheJIT</span><span class="p">;</span>
+<span class="k">static</span> <span class="n">std</span><span class="o">::</span><span class="n">map</span><span class="o"><</span><span class="n">std</span><span class="o">::</span><span class="n">string</span><span class="p">,</span> <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">PrototypeAST</span><span class="o">>></span> <span class="n">FunctionProtos</span><span class="p">;</span>
+
+<span class="n">Value</span> <span class="o">*</span><span class="nf">ErrorV</span><span class="p">(</span><span class="k">const</span> <span class="kt">char</span> <span class="o">*</span><span class="n">Str</span><span class="p">)</span> <span class="p">{</span>
+ <span class="n">Error</span><span class="p">(</span><span class="n">Str</span><span class="p">);</span>
+ <span class="k">return</span> <span class="n">nullptr</span><span class="p">;</span>
+<span class="p">}</span>
+
+<span class="n">Function</span> <span class="o">*</span><span class="nf">getFunction</span><span class="p">(</span><span class="n">std</span><span class="o">::</span><span class="n">string</span> <span class="n">Name</span><span class="p">)</span> <span class="p">{</span>
+ <span class="c1">// First, see if the function has already been added to the current module.</span>
+ <span class="k">if</span> <span class="p">(</span><span class="k">auto</span> <span class="o">*</span><span class="n">F</span> <span class="o">=</span> <span class="n">TheModule</span><span class="o">-></span><span class="n">getFunction</span><span class="p">(</span><span class="n">Name</span><span class="p">))</span>
+ <span class="k">return</span> <span class="n">F</span><span class="p">;</span>
+
+ <span class="c1">// If not, check whether we can codegen the declaration from some existing</span>
+ <span class="c1">// prototype.</span>
+ <span class="k">auto</span> <span class="n">FI</span> <span class="o">=</span> <span class="n">FunctionProtos</span><span class="p">.</span><span class="n">find</span><span class="p">(</span><span class="n">Name</span><span class="p">);</span>
+ <span class="k">if</span> <span class="p">(</span><span class="n">FI</span> <span class="o">!=</span> <span class="n">FunctionProtos</span><span class="p">.</span><span class="n">end</span><span class="p">())</span>
+ <span class="k">return</span> <span class="n">FI</span><span class="o">-></span><span class="n">second</span><span class="o">-></span><span class="n">codegen</span><span class="p">();</span>
+
+ <span class="c1">// If no existing prototype exists, return null.</span>
+ <span class="k">return</span> <span class="n">nullptr</span><span class="p">;</span>
+<span class="p">}</span>
+
+<span class="n">Value</span> <span class="o">*</span><span class="n">NumberExprAST</span><span class="o">::</span><span class="n">codegen</span><span class="p">()</span> <span class="p">{</span>
+ <span class="k">return</span> <span class="n">ConstantFP</span><span class="o">::</span><span class="n">get</span><span class="p">(</span><span class="n">getGlobalContext</span><span class="p">(),</span> <span class="n">APFloat</span><span class="p">(</span><span class="n">Val</span><span class="p">));</span>
+<span class="p">}</span>
+
+<span class="n">Value</span> <span class="o">*</span><span class="n">VariableExprAST</span><span class="o">::</span><span class="n">codegen</span><span class="p">()</span> <span class="p">{</span>
+ <span class="c1">// Look this variable up in the function.</span>
+ <span class="n">Value</span> <span class="o">*</span><span class="n">V</span> <span class="o">=</span> <span class="n">NamedValues</span><span class="p">[</span><span class="n">Name</span><span class="p">];</span>
+ <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="n">V</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">ErrorV</span><span class="p">(</span><span class="s">"Unknown variable name"</span><span class="p">);</span>
+ <span class="k">return</span> <span class="n">V</span><span class="p">;</span>
+<span class="p">}</span>
+
+<span class="n">Value</span> <span class="o">*</span><span class="n">BinaryExprAST</span><span class="o">::</span><span class="n">codegen</span><span class="p">()</span> <span class="p">{</span>
+ <span class="n">Value</span> <span class="o">*</span><span class="n">L</span> <span class="o">=</span> <span class="n">LHS</span><span class="o">-></span><span class="n">codegen</span><span class="p">();</span>
+ <span class="n">Value</span> <span class="o">*</span><span class="n">R</span> <span class="o">=</span> <span class="n">RHS</span><span class="o">-></span><span class="n">codegen</span><span class="p">();</span>
+ <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="n">L</span> <span class="o">||</span> <span class="o">!</span><span class="n">R</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">nullptr</span><span class="p">;</span>
+
+ <span class="k">switch</span> <span class="p">(</span><span class="n">Op</span><span class="p">)</span> <span class="p">{</span>
+ <span class="k">case</span> <span class="sc">'+'</span>:
+ <span class="k">return</span> <span class="n">Builder</span><span class="p">.</span><span class="n">CreateFAdd</span><span class="p">(</span><span class="n">L</span><span class="p">,</span> <span class="n">R</span><span class="p">,</span> <span class="s">"addtmp"</span><span class="p">);</span>
+ <span class="k">case</span> <span class="sc">'-'</span>:
+ <span class="k">return</span> <span class="n">Builder</span><span class="p">.</span><span class="n">CreateFSub</span><span class="p">(</span><span class="n">L</span><span class="p">,</span> <span class="n">R</span><span class="p">,</span> <span class="s">"subtmp"</span><span class="p">);</span>
+ <span class="k">case</span> <span class="sc">'*'</span>:
+ <span class="k">return</span> <span class="n">Builder</span><span class="p">.</span><span class="n">CreateFMul</span><span class="p">(</span><span class="n">L</span><span class="p">,</span> <span class="n">R</span><span class="p">,</span> <span class="s">"multmp"</span><span class="p">);</span>
+ <span class="k">case</span> <span class="sc">'<'</span>:
+ <span class="n">L</span> <span class="o">=</span> <span class="n">Builder</span><span class="p">.</span><span class="n">CreateFCmpULT</span><span class="p">(</span><span class="n">L</span><span class="p">,</span> <span class="n">R</span><span class="p">,</span> <span class="s">"cmptmp"</span><span class="p">);</span>
+ <span class="c1">// Convert bool 0/1 to double 0.0 or 1.0</span>
+ <span class="k">return</span> <span class="n">Builder</span><span class="p">.</span><span class="n">CreateUIToFP</span><span class="p">(</span><span class="n">L</span><span class="p">,</span> <span class="n">Type</span><span class="o">::</span><span class="n">getDoubleTy</span><span class="p">(</span><span class="n">getGlobalContext</span><span class="p">()),</span>
+ <span class="s">"booltmp"</span><span class="p">);</span>
+ <span class="nl">default:</span>
+ <span class="k">return</span> <span class="nf">ErrorV</span><span class="p">(</span><span class="s">"invalid binary operator"</span><span class="p">);</span>
+ <span class="p">}</span>
+<span class="p">}</span>
+
+<span class="n">Value</span> <span class="o">*</span><span class="n">CallExprAST</span><span class="o">::</span><span class="n">codegen</span><span class="p">()</span> <span class="p">{</span>
+ <span class="c1">// Look up the name in the global module table.</span>
+ <span class="n">Function</span> <span class="o">*</span><span class="n">CalleeF</span> <span class="o">=</span> <span class="n">getFunction</span><span class="p">(</span><span class="n">Callee</span><span class="p">);</span>
+ <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="n">CalleeF</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">ErrorV</span><span class="p">(</span><span class="s">"Unknown function referenced"</span><span class="p">);</span>
+
+ <span class="c1">// If argument mismatch error.</span>
+ <span class="k">if</span> <span class="p">(</span><span class="n">CalleeF</span><span class="o">-></span><span class="n">arg_size</span><span class="p">()</span> <span class="o">!=</span> <span class="n">Args</span><span class="p">.</span><span class="n">size</span><span class="p">())</span>
+ <span class="k">return</span> <span class="n">ErrorV</span><span class="p">(</span><span class="s">"Incorrect # arguments passed"</span><span class="p">);</span>
+
+ <span class="n">std</span><span class="o">::</span><span class="n">vector</span><span class="o"><</span><span class="n">Value</span> <span class="o">*></span> <span class="n">ArgsV</span><span class="p">;</span>
+ <span class="k">for</span> <span class="p">(</span><span class="kt">unsigned</span> <span class="n">i</span> <span class="o">=</span> <span class="mi">0</span><span class="p">,</span> <span class="n">e</span> <span class="o">=</span> <span class="n">Args</span><span class="p">.</span><span class="n">size</span><span class="p">();</span> <span class="n">i</span> <span class="o">!=</span> <span class="n">e</span><span class="p">;</span> <span class="o">++</span><span class="n">i</span><span class="p">)</span> <span class="p">{</span>
+ <span class="n">ArgsV</span><span class="p">.</span><span class="n">push_back</span><span class="p">(</span><span class="n">Args</span><span class="p">[</span><span class="n">i</span><span class="p">]</span><span class="o">-></span><span class="n">codegen</span><span class="p">());</span>
+ <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="n">ArgsV</span><span class="p">.</span><span class="n">back</span><span class="p">())</span>
+ <span class="k">return</span> <span class="n">nullptr</span><span class="p">;</span>
+ <span class="p">}</span>
+
+ <span class="k">return</span> <span class="n">Builder</span><span class="p">.</span><span class="n">CreateCall</span><span class="p">(</span><span class="n">CalleeF</span><span class="p">,</span> <span class="n">ArgsV</span><span class="p">,</span> <span class="s">"calltmp"</span><span class="p">);</span>
+<span class="p">}</span>
+
+<span class="n">Function</span> <span class="o">*</span><span class="n">PrototypeAST</span><span class="o">::</span><span class="n">codegen</span><span class="p">()</span> <span class="p">{</span>
+ <span class="c1">// Make the function type: double(double,double) etc.</span>
+ <span class="n">std</span><span class="o">::</span><span class="n">vector</span><span class="o"><</span><span class="n">Type</span> <span class="o">*></span> <span class="n">Doubles</span><span class="p">(</span><span class="n">Args</span><span class="p">.</span><span class="n">size</span><span class="p">(),</span>
+ <span class="n">Type</span><span class="o">::</span><span class="n">getDoubleTy</span><span class="p">(</span><span class="n">getGlobalContext</span><span class="p">()));</span>
+ <span class="n">FunctionType</span> <span class="o">*</span><span class="n">FT</span> <span class="o">=</span>
+ <span class="n">FunctionType</span><span class="o">::</span><span class="n">get</span><span class="p">(</span><span class="n">Type</span><span class="o">::</span><span class="n">getDoubleTy</span><span class="p">(</span><span class="n">getGlobalContext</span><span class="p">()),</span> <span class="n">Doubles</span><span class="p">,</span> <span class="nb">false</span><span class="p">);</span>
+
+ <span class="n">Function</span> <span class="o">*</span><span class="n">F</span> <span class="o">=</span>
+ <span class="n">Function</span><span class="o">::</span><span class="n">Create</span><span class="p">(</span><span class="n">FT</span><span class="p">,</span> <span class="n">Function</span><span class="o">::</span><span class="n">ExternalLinkage</span><span class="p">,</span> <span class="n">Name</span><span class="p">,</span> <span class="n">TheModule</span><span class="p">.</span><span class="n">get</span><span class="p">());</span>
+
+ <span class="c1">// Set names for all arguments.</span>
+ <span class="kt">unsigned</span> <span class="n">Idx</span> <span class="o">=</span> <span class="mi">0</span><span class="p">;</span>
+ <span class="k">for</span> <span class="p">(</span><span class="k">auto</span> <span class="o">&</span><span class="n">Arg</span> <span class="o">:</span> <span class="n">F</span><span class="o">-></span><span class="n">args</span><span class="p">())</span>
+ <span class="n">Arg</span><span class="p">.</span><span class="n">setName</span><span class="p">(</span><span class="n">Args</span><span class="p">[</span><span class="n">Idx</span><span class="o">++</span><span class="p">]);</span>
+
+ <span class="k">return</span> <span class="n">F</span><span class="p">;</span>
+<span class="p">}</span>
+
+<span class="n">Function</span> <span class="o">*</span><span class="n">FunctionAST</span><span class="o">::</span><span class="n">codegen</span><span class="p">()</span> <span class="p">{</span>
+ <span class="c1">// Transfer ownership of the prototype to the FunctionProtos map, but keep a</span>
+ <span class="c1">// reference to it for use below.</span>
+ <span class="k">auto</span> <span class="o">&</span><span class="n">P</span> <span class="o">=</span> <span class="o">*</span><span class="n">Proto</span><span class="p">;</span>
+ <span class="n">FunctionProtos</span><span class="p">[</span><span class="n">Proto</span><span class="o">-></span><span class="n">getName</span><span class="p">()]</span> <span class="o">=</span> <span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">Proto</span><span class="p">);</span>
+ <span class="n">Function</span> <span class="o">*</span><span class="n">TheFunction</span> <span class="o">=</span> <span class="n">getFunction</span><span class="p">(</span><span class="n">P</span><span class="p">.</span><span class="n">getName</span><span class="p">());</span>
+ <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="n">TheFunction</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">nullptr</span><span class="p">;</span>
+
+ <span class="c1">// Create a new basic block to start insertion into.</span>
+ <span class="n">BasicBlock</span> <span class="o">*</span><span class="n">BB</span> <span class="o">=</span> <span class="n">BasicBlock</span><span class="o">::</span><span class="n">Create</span><span class="p">(</span><span class="n">getGlobalContext</span><span class="p">(),</span> <span class="s">"entry"</span><span class="p">,</span> <span class="n">TheFunction</span><span class="p">);</span>
+ <span class="n">Builder</span><span class="p">.</span><span class="n">SetInsertPoint</span><span class="p">(</span><span class="n">BB</span><span class="p">);</span>
+
+ <span class="c1">// Record the function arguments in the NamedValues map.</span>
+ <span class="n">NamedValues</span><span class="p">.</span><span class="n">clear</span><span class="p">();</span>
+ <span class="k">for</span> <span class="p">(</span><span class="k">auto</span> <span class="o">&</span><span class="n">Arg</span> <span class="o">:</span> <span class="n">TheFunction</span><span class="o">-></span><span class="n">args</span><span class="p">())</span>
+ <span class="n">NamedValues</span><span class="p">[</span><span class="n">Arg</span><span class="p">.</span><span class="n">getName</span><span class="p">()]</span> <span class="o">=</span> <span class="o">&</span><span class="n">Arg</span><span class="p">;</span>
+
+ <span class="k">if</span> <span class="p">(</span><span class="n">Value</span> <span class="o">*</span><span class="n">RetVal</span> <span class="o">=</span> <span class="n">Body</span><span class="o">-></span><span class="n">codegen</span><span class="p">())</span> <span class="p">{</span>
+ <span class="c1">// Finish off the function.</span>
+ <span class="n">Builder</span><span class="p">.</span><span class="n">CreateRet</span><span class="p">(</span><span class="n">RetVal</span><span class="p">);</span>
+
+ <span class="c1">// Validate the generated code, checking for consistency.</span>
+ <span class="n">verifyFunction</span><span class="p">(</span><span class="o">*</span><span class="n">TheFunction</span><span class="p">);</span>
+
+ <span class="c1">// Run the optimizer on the function.</span>
+ <span class="n">TheFPM</span><span class="o">-></span><span class="n">run</span><span class="p">(</span><span class="o">*</span><span class="n">TheFunction</span><span class="p">);</span>
+
+ <span class="k">return</span> <span class="n">TheFunction</span><span class="p">;</span>
+ <span class="p">}</span>
+
+ <span class="c1">// Error reading body, remove function.</span>
+ <span class="n">TheFunction</span><span class="o">-></span><span class="n">eraseFromParent</span><span class="p">();</span>
+ <span class="k">return</span> <span class="n">nullptr</span><span class="p">;</span>
+<span class="p">}</span>
+
+<span class="c1">//===----------------------------------------------------------------------===//</span>
+<span class="c1">// Top-Level parsing and JIT Driver</span>
+<span class="c1">//===----------------------------------------------------------------------===//</span>
+
+<span class="k">static</span> <span class="kt">void</span> <span class="n">InitializeModuleAndPassManager</span><span class="p">()</span> <span class="p">{</span>
+ <span class="c1">// Open a new module.</span>
+ <span class="n">TheModule</span> <span class="o">=</span> <span class="n">llvm</span><span class="o">::</span><span class="n">make_unique</span><span class="o"><</span><span class="n">Module</span><span class="o">></span><span class="p">(</span><span class="s">"my cool jit"</span><span class="p">,</span> <span class="n">getGlobalContext</span><span class="p">());</span>
+ <span class="n">TheModule</span><span class="o">-></span><span class="n">setDataLayout</span><span class="p">(</span><span class="n">TheJIT</span><span class="o">-></span><span class="n">getTargetMachine</span><span class="p">().</span><span class="n">createDataLayout</span><span class="p">());</span>
+
+ <span class="c1">// Create a new pass manager attached to it.</span>
+ <span class="n">TheFPM</span> <span class="o">=</span> <span class="n">llvm</span><span class="o">::</span><span class="n">make_unique</span><span class="o"><</span><span class="n">legacy</span><span class="o">::</span><span class="n">FunctionPassManager</span><span class="o">></span><span class="p">(</span><span class="n">TheModule</span><span class="p">.</span><span class="n">get</span><span class="p">());</span>
+
+ <span class="c1">// Do simple "peephole" optimizations and bit-twiddling optzns.</span>
+ <span class="n">TheFPM</span><span class="o">-></span><span class="n">add</span><span class="p">(</span><span class="n">createInstructionCombiningPass</span><span class="p">());</span>
+ <span class="c1">// Reassociate expressions.</span>
+ <span class="n">TheFPM</span><span class="o">-></span><span class="n">add</span><span class="p">(</span><span class="n">createReassociatePass</span><span class="p">());</span>
+ <span class="c1">// Eliminate Common SubExpressions.</span>
+ <span class="n">TheFPM</span><span class="o">-></span><span class="n">add</span><span class="p">(</span><span class="n">createGVNPass</span><span class="p">());</span>
+ <span class="c1">// Simplify the control flow graph (deleting unreachable blocks, etc).</span>
+ <span class="n">TheFPM</span><span class="o">-></span><span class="n">add</span><span class="p">(</span><span class="n">createCFGSimplificationPass</span><span class="p">());</span>
+
+ <span class="n">TheFPM</span><span class="o">-></span><span class="n">doInitialization</span><span class="p">();</span>
+<span class="p">}</span>
+
+<span class="k">static</span> <span class="kt">void</span> <span class="n">HandleDefinition</span><span class="p">()</span> <span class="p">{</span>
+ <span class="k">if</span> <span class="p">(</span><span class="k">auto</span> <span class="n">FnAST</span> <span class="o">=</span> <span class="n">ParseDefinition</span><span class="p">())</span> <span class="p">{</span>
+ <span class="k">if</span> <span class="p">(</span><span class="k">auto</span> <span class="o">*</span><span class="n">FnIR</span> <span class="o">=</span> <span class="n">FnAST</span><span class="o">-></span><span class="n">codegen</span><span class="p">())</span> <span class="p">{</span>
+ <span class="n">fprintf</span><span class="p">(</span><span class="n">stderr</span><span class="p">,</span> <span class="s">"Read function definition:"</span><span class="p">);</span>
+ <span class="n">FnIR</span><span class="o">-></span><span class="n">dump</span><span class="p">();</span>
+ <span class="n">TheJIT</span><span class="o">-></span><span class="n">addModule</span><span class="p">(</span><span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">TheModule</span><span class="p">));</span>
+ <span class="n">InitializeModuleAndPassManager</span><span class="p">();</span>
+ <span class="p">}</span>
+ <span class="p">}</span> <span class="k">else</span> <span class="p">{</span>
+ <span class="c1">// Skip token for error recovery.</span>
+ <span class="n">getNextToken</span><span class="p">();</span>
+ <span class="p">}</span>
+<span class="p">}</span>
+
+<span class="k">static</span> <span class="kt">void</span> <span class="n">HandleExtern</span><span class="p">()</span> <span class="p">{</span>
+ <span class="k">if</span> <span class="p">(</span><span class="k">auto</span> <span class="n">ProtoAST</span> <span class="o">=</span> <span class="n">ParseExtern</span><span class="p">())</span> <span class="p">{</span>
+ <span class="k">if</span> <span class="p">(</span><span class="k">auto</span> <span class="o">*</span><span class="n">FnIR</span> <span class="o">=</span> <span class="n">ProtoAST</span><span class="o">-></span><span class="n">codegen</span><span class="p">())</span> <span class="p">{</span>
+ <span class="n">fprintf</span><span class="p">(</span><span class="n">stderr</span><span class="p">,</span> <span class="s">"Read extern: "</span><span class="p">);</span>
+ <span class="n">FnIR</span><span class="o">-></span><span class="n">dump</span><span class="p">();</span>
+ <span class="n">FunctionProtos</span><span class="p">[</span><span class="n">ProtoAST</span><span class="o">-></span><span class="n">getName</span><span class="p">()]</span> <span class="o">=</span> <span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">ProtoAST</span><span class="p">);</span>
+ <span class="p">}</span>
+ <span class="p">}</span> <span class="k">else</span> <span class="p">{</span>
+ <span class="c1">// Skip token for error recovery.</span>
+ <span class="n">getNextToken</span><span class="p">();</span>
+ <span class="p">}</span>
+<span class="p">}</span>
+
+<span class="k">static</span> <span class="kt">void</span> <span class="n">HandleTopLevelExpression</span><span class="p">()</span> <span class="p">{</span>
+ <span class="c1">// Evaluate a top-level expression into an anonymous function.</span>
+ <span class="k">if</span> <span class="p">(</span><span class="k">auto</span> <span class="n">FnAST</span> <span class="o">=</span> <span class="n">ParseTopLevelExpr</span><span class="p">())</span> <span class="p">{</span>
+ <span class="k">if</span> <span class="p">(</span><span class="n">FnAST</span><span class="o">-></span><span class="n">codegen</span><span class="p">())</span> <span class="p">{</span>
+
+ <span class="c1">// JIT the module containing the anonymous expression, keeping a handle so</span>
+ <span class="c1">// we can free it later.</span>
+ <span class="k">auto</span> <span class="n">H</span> <span class="o">=</span> <span class="n">TheJIT</span><span class="o">-></span><span class="n">addModule</span><span class="p">(</span><span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">TheModule</span><span class="p">));</span>
+ <span class="n">InitializeModuleAndPassManager</span><span class="p">();</span>
+
+ <span class="c1">// Search the JIT for the __anon_expr symbol.</span>
+ <span class="k">auto</span> <span class="n">ExprSymbol</span> <span class="o">=</span> <span class="n">TheJIT</span><span class="o">-></span><span class="n">findSymbol</span><span class="p">(</span><span class="s">"__anon_expr"</span><span class="p">);</span>
+ <span class="n">assert</span><span class="p">(</span><span class="n">ExprSymbol</span> <span class="o">&&</span> <span class="s">"Function not found"</span><span class="p">);</span>
+
+ <span class="c1">// Get the symbol's address and cast it to the right type (takes no</span>
+ <span class="c1">// arguments, returns a double) so we can call it as a native function.</span>
+ <span class="kt">double</span> <span class="p">(</span><span class="o">*</span><span class="n">FP</span><span class="p">)()</span> <span class="o">=</span> <span class="p">(</span><span class="kt">double</span> <span class="p">(</span><span class="o">*</span><span class="p">)())(</span><span class="kt">intptr_t</span><span class="p">)</span><span class="n">ExprSymbol</span><span class="p">.</span><span class="n">getAddress</span><span class="p">();</span>
+ <span class="n">fprintf</span><span class="p">(</span><span class="n">stderr</span><span class="p">,</span> <span class="s">"Evaluated to %f</span><span class="se">\n</span><span class="s">"</span><span class="p">,</span> <span class="n">FP</span><span class="p">());</span>
+
+ <span class="c1">// Delete the anonymous expression module from the JIT.</span>
+ <span class="n">TheJIT</span><span class="o">-></span><span class="n">removeModule</span><span class="p">(</span><span class="n">H</span><span class="p">);</span>
+ <span class="p">}</span>
+ <span class="p">}</span> <span class="k">else</span> <span class="p">{</span>
+ <span class="c1">// Skip token for error recovery.</span>
+ <span class="n">getNextToken</span><span class="p">();</span>
+ <span class="p">}</span>
+<span class="p">}</span>
+
+<span class="c1">/// top ::= definition | external | expression | ';'</span>
+<span class="k">static</span> <span class="kt">void</span> <span class="n">MainLoop</span><span class="p">()</span> <span class="p">{</span>
+ <span class="k">while</span> <span class="p">(</span><span class="mi">1</span><span class="p">)</span> <span class="p">{</span>
+ <span class="n">fprintf</span><span class="p">(</span><span class="n">stderr</span><span class="p">,</span> <span class="s">"ready> "</span><span class="p">);</span>
+ <span class="k">switch</span> <span class="p">(</span><span class="n">CurTok</span><span class="p">)</span> <span class="p">{</span>
+ <span class="k">case</span> <span class="n">tok_eof</span>:
+ <span class="k">return</span><span class="p">;</span>
+ <span class="k">case</span> <span class="sc">';'</span>: <span class="c1">// ignore top-level semicolons.</span>
+ <span class="n">getNextToken</span><span class="p">();</span>
+ <span class="k">break</span><span class="p">;</span>
+ <span class="k">case</span> <span class="n">tok_def</span>:
+ <span class="n">HandleDefinition</span><span class="p">();</span>
+ <span class="k">break</span><span class="p">;</span>
+ <span class="k">case</span> <span class="n">tok_extern</span>:
+ <span class="n">HandleExtern</span><span class="p">();</span>
+ <span class="k">break</span><span class="p">;</span>
+ <span class="nl">default:</span>
+ <span class="n">HandleTopLevelExpression</span><span class="p">();</span>
+ <span class="k">break</span><span class="p">;</span>
+ <span class="p">}</span>
+ <span class="p">}</span>
+<span class="p">}</span>
+
+<span class="c1">//===----------------------------------------------------------------------===//</span>
+<span class="c1">// "Library" functions that can be "extern'd" from user code.</span>
+<span class="c1">//===----------------------------------------------------------------------===//</span>
+
+<span class="c1">/// putchard - putchar that takes a double and returns 0.</span>
+<span class="k">extern</span> <span class="s">"C"</span> <span class="kt">double</span> <span class="n">putchard</span><span class="p">(</span><span class="kt">double</span> <span class="n">X</span><span class="p">)</span> <span class="p">{</span>
+ <span class="n">fputc</span><span class="p">((</span><span class="kt">char</span><span class="p">)</span><span class="n">X</span><span class="p">,</span> <span class="n">stderr</span><span class="p">);</span>
+ <span class="k">return</span> <span class="mi">0</span><span class="p">;</span>
+<span class="p">}</span>
+
+<span class="c1">/// printd - printf that takes a double prints it as "%f\n", returning 0.</span>
+<span class="k">extern</span> <span class="s">"C"</span> <span class="kt">double</span> <span class="n">printd</span><span class="p">(</span><span class="kt">double</span> <span class="n">X</span><span class="p">)</span> <span class="p">{</span>
+ <span class="n">fprintf</span><span class="p">(</span><span class="n">stderr</span><span class="p">,</span> <span class="s">"%f</span><span class="se">\n</span><span class="s">"</span><span class="p">,</span> <span class="n">X</span><span class="p">);</span>
+ <span class="k">return</span> <span class="mi">0</span><span class="p">;</span>
+<span class="p">}</span>
+
+<span class="c1">//===----------------------------------------------------------------------===//</span>
+<span class="c1">// Main driver code.</span>
+<span class="c1">//===----------------------------------------------------------------------===//</span>
+
+<span class="kt">int</span> <span class="n">main</span><span class="p">()</span> <span class="p">{</span>
+ <span class="n">InitializeNativeTarget</span><span class="p">();</span>
+ <span class="n">InitializeNativeTargetAsmPrinter</span><span class="p">();</span>
+ <span class="n">InitializeNativeTargetAsmParser</span><span class="p">();</span>
+
+ <span class="c1">// Install standard binary operators.</span>
+ <span class="c1">// 1 is lowest precedence.</span>
+ <span class="n">BinopPrecedence</span><span class="p">[</span><span class="sc">'<'</span><span class="p">]</span> <span class="o">=</span> <span class="mi">10</span><span class="p">;</span>
+ <span class="n">BinopPrecedence</span><span class="p">[</span><span class="sc">'+'</span><span class="p">]</span> <span class="o">=</span> <span class="mi">20</span><span class="p">;</span>
+ <span class="n">BinopPrecedence</span><span class="p">[</span><span class="sc">'-'</span><span class="p">]</span> <span class="o">=</span> <span class="mi">20</span><span class="p">;</span>
+ <span class="n">BinopPrecedence</span><span class="p">[</span><span class="sc">'*'</span><span class="p">]</span> <span class="o">=</span> <span class="mi">40</span><span class="p">;</span> <span class="c1">// highest.</span>
+
+ <span class="c1">// Prime the first token.</span>
+ <span class="n">fprintf</span><span class="p">(</span><span class="n">stderr</span><span class="p">,</span> <span class="s">"ready> "</span><span class="p">);</span>
+ <span class="n">getNextToken</span><span class="p">();</span>
+
+ <span class="n">TheJIT</span> <span class="o">=</span> <span class="n">llvm</span><span class="o">::</span><span class="n">make_unique</span><span class="o"><</span><span class="n">KaleidoscopeJIT</span><span class="o">></span><span class="p">();</span>
+
+ <span class="n">InitializeModuleAndPassManager</span><span class="p">();</span>
+
+ <span class="c1">// Run the main "interpreter loop" now.</span>
+ <span class="n">MainLoop</span><span class="p">();</span>
+
+ <span class="k">return</span> <span class="mi">0</span><span class="p">;</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+<p><a class="reference external" href="LangImpl5.html">Next: Extending the language: control flow</a></p>
+</div>
+</div>
+
+
+ </div>
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+ <div class="section" id="kaleidoscope-extending-the-language-control-flow">
+<h1>5. Kaleidoscope: Extending the Language: Control Flow<a class="headerlink" href="#kaleidoscope-extending-the-language-control-flow" title="Permalink to this headline">¶</a></h1>
+<div class="contents local topic" id="contents">
+<ul class="simple">
+<li><a class="reference internal" href="#chapter-5-introduction" id="id1">Chapter 5 Introduction</a></li>
+<li><a class="reference internal" href="#if-then-else" id="id2">If/Then/Else</a><ul>
+<li><a class="reference internal" href="#lexer-extensions-for-if-then-else" id="id3">Lexer Extensions for If/Then/Else</a></li>
+<li><a class="reference internal" href="#ast-extensions-for-if-then-else" id="id4">AST Extensions for If/Then/Else</a></li>
+<li><a class="reference internal" href="#parser-extensions-for-if-then-else" id="id5">Parser Extensions for If/Then/Else</a></li>
+<li><a class="reference internal" href="#llvm-ir-for-if-then-else" id="id6">LLVM IR for If/Then/Else</a></li>
+<li><a class="reference internal" href="#code-generation-for-if-then-else" id="id7">Code Generation for If/Then/Else</a></li>
+</ul>
+</li>
+<li><a class="reference internal" href="#for-loop-expression" id="id8">‘for’ Loop Expression</a><ul>
+<li><a class="reference internal" href="#lexer-extensions-for-the-for-loop" id="id9">Lexer Extensions for the ‘for’ Loop</a></li>
+<li><a class="reference internal" href="#ast-extensions-for-the-for-loop" id="id10">AST Extensions for the ‘for’ Loop</a></li>
+<li><a class="reference internal" href="#parser-extensions-for-the-for-loop" id="id11">Parser Extensions for the ‘for’ Loop</a></li>
+<li><a class="reference internal" href="#llvm-ir-for-the-for-loop" id="id12">LLVM IR for the ‘for’ Loop</a></li>
+<li><a class="reference internal" href="#code-generation-for-the-for-loop" id="id13">Code Generation for the ‘for’ Loop</a></li>
+</ul>
+</li>
+<li><a class="reference internal" href="#full-code-listing" id="id14">Full Code Listing</a></li>
+</ul>
+</div>
+<div class="section" id="chapter-5-introduction">
+<h2><a class="toc-backref" href="#id1">5.1. Chapter 5 Introduction</a><a class="headerlink" href="#chapter-5-introduction" title="Permalink to this headline">¶</a></h2>
+<p>Welcome to Chapter 5 of the “<a class="reference external" href="index.html">Implementing a language with
+LLVM</a>” tutorial. Parts 1-4 described the implementation of
+the simple Kaleidoscope language and included support for generating
+LLVM IR, followed by optimizations and a JIT compiler. Unfortunately, as
+presented, Kaleidoscope is mostly useless: it has no control flow other
+than call and return. This means that you can’t have conditional
+branches in the code, significantly limiting its power. In this episode
+of “build that compiler”, we’ll extend Kaleidoscope to have an
+if/then/else expression plus a simple ‘for’ loop.</p>
+</div>
+<div class="section" id="if-then-else">
+<h2><a class="toc-backref" href="#id2">5.2. If/Then/Else</a><a class="headerlink" href="#if-then-else" title="Permalink to this headline">¶</a></h2>
+<p>Extending Kaleidoscope to support if/then/else is quite straightforward.
+It basically requires adding support for this “new” concept to the
+lexer, parser, AST, and LLVM code emitter. This example is nice, because
+it shows how easy it is to “grow” a language over time, incrementally
+extending it as new ideas are discovered.</p>
+<p>Before we get going on “how” we add this extension, lets talk about
+“what” we want. The basic idea is that we want to be able to write this
+sort of thing:</p>
+<div class="highlight-python"><div class="highlight"><pre>def fib(x)
+ if x < 3 then
+ 1
+ else
+ fib(x-1)+fib(x-2);
+</pre></div>
+</div>
+<p>In Kaleidoscope, every construct is an expression: there are no
+statements. As such, the if/then/else expression needs to return a value
+like any other. Since we’re using a mostly functional form, we’ll have
+it evaluate its conditional, then return the ‘then’ or ‘else’ value
+based on how the condition was resolved. This is very similar to the C
+”?:” expression.</p>
+<p>The semantics of the if/then/else expression is that it evaluates the
+condition to a boolean equality value: 0.0 is considered to be false and
+everything else is considered to be true. If the condition is true, the
+first subexpression is evaluated and returned, if the condition is
+false, the second subexpression is evaluated and returned. Since
+Kaleidoscope allows side-effects, this behavior is important to nail
+down.</p>
+<p>Now that we know what we “want”, lets break this down into its
+constituent pieces.</p>
+<div class="section" id="lexer-extensions-for-if-then-else">
+<h3><a class="toc-backref" href="#id3">5.2.1. Lexer Extensions for If/Then/Else</a><a class="headerlink" href="#lexer-extensions-for-if-then-else" title="Permalink to this headline">¶</a></h3>
+<p>The lexer extensions are straightforward. First we add new enum values
+for the relevant tokens:</p>
+<div class="highlight-c++"><div class="highlight"><pre><span class="c1">// control</span>
+<span class="n">tok_if</span> <span class="o">=</span> <span class="o">-</span><span class="mi">6</span><span class="p">,</span>
+<span class="n">tok_then</span> <span class="o">=</span> <span class="o">-</span><span class="mi">7</span><span class="p">,</span>
+<span class="n">tok_else</span> <span class="o">=</span> <span class="o">-</span><span class="mi">8</span><span class="p">,</span>
+</pre></div>
+</div>
+<p>Once we have that, we recognize the new keywords in the lexer. This is
+pretty simple stuff:</p>
+<div class="highlight-c++"><div class="highlight"><pre><span class="p">...</span>
+<span class="k">if</span> <span class="p">(</span><span class="n">IdentifierStr</span> <span class="o">==</span> <span class="s">"def"</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">tok_def</span><span class="p">;</span>
+<span class="k">if</span> <span class="p">(</span><span class="n">IdentifierStr</span> <span class="o">==</span> <span class="s">"extern"</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">tok_extern</span><span class="p">;</span>
+<span class="k">if</span> <span class="p">(</span><span class="n">IdentifierStr</span> <span class="o">==</span> <span class="s">"if"</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">tok_if</span><span class="p">;</span>
+<span class="k">if</span> <span class="p">(</span><span class="n">IdentifierStr</span> <span class="o">==</span> <span class="s">"then"</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">tok_then</span><span class="p">;</span>
+<span class="k">if</span> <span class="p">(</span><span class="n">IdentifierStr</span> <span class="o">==</span> <span class="s">"else"</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">tok_else</span><span class="p">;</span>
+<span class="k">return</span> <span class="n">tok_identifier</span><span class="p">;</span>
+</pre></div>
+</div>
+</div>
+<div class="section" id="ast-extensions-for-if-then-else">
+<h3><a class="toc-backref" href="#id4">5.2.2. AST Extensions for If/Then/Else</a><a class="headerlink" href="#ast-extensions-for-if-then-else" title="Permalink to this headline">¶</a></h3>
+<p>To represent the new expression we add a new AST node for it:</p>
+<div class="highlight-c++"><div class="highlight"><pre><span class="c1">/// IfExprAST - Expression class for if/then/else.</span>
+<span class="k">class</span> <span class="nc">IfExprAST</span> <span class="o">:</span> <span class="k">public</span> <span class="n">ExprAST</span> <span class="p">{</span>
+ <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">ExprAST</span><span class="o">></span> <span class="n">Cond</span><span class="p">,</span> <span class="n">Then</span><span class="p">,</span> <span class="n">Else</span><span class="p">;</span>
+
+<span class="nl">public:</span>
+ <span class="n">IfExprAST</span><span class="p">(</span><span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">ExprAST</span><span class="o">></span> <span class="n">Cond</span><span class="p">,</span> <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">ExprAST</span><span class="o">></span> <span class="n">Then</span><span class="p">,</span>
+ <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">ExprAST</span><span class="o">></span> <span class="n">Else</span><span class="p">)</span>
+ <span class="o">:</span> <span class="n">Cond</span><span class="p">(</span><span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">Cond</span><span class="p">)),</span> <span class="n">Then</span><span class="p">(</span><span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">Then</span><span class="p">)),</span> <span class="n">Else</span><span class="p">(</span><span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">Else</span><span class="p">))</span> <span class="p">{}</span>
+ <span class="k">virtual</span> <span class="n">Value</span> <span class="o">*</span><span class="n">codegen</span><span class="p">();</span>
+<span class="p">};</span>
+</pre></div>
+</div>
+<p>The AST node just has pointers to the various subexpressions.</p>
+</div>
+<div class="section" id="parser-extensions-for-if-then-else">
+<h3><a class="toc-backref" href="#id5">5.2.3. Parser Extensions for If/Then/Else</a><a class="headerlink" href="#parser-extensions-for-if-then-else" title="Permalink to this headline">¶</a></h3>
+<p>Now that we have the relevant tokens coming from the lexer and we have
+the AST node to build, our parsing logic is relatively straightforward.
+First we define a new parsing function:</p>
+<div class="highlight-c++"><div class="highlight"><pre><span class="c1">/// ifexpr ::= 'if' expression 'then' expression 'else' expression</span>
+<span class="k">static</span> <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">ExprAST</span><span class="o">></span> <span class="n">ParseIfExpr</span><span class="p">()</span> <span class="p">{</span>
+ <span class="n">getNextToken</span><span class="p">();</span> <span class="c1">// eat the if.</span>
+
+ <span class="c1">// condition.</span>
+ <span class="k">auto</span> <span class="n">Cond</span> <span class="o">=</span> <span class="n">ParseExpression</span><span class="p">();</span>
+ <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="n">Cond</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">nullptr</span><span class="p">;</span>
+
+ <span class="k">if</span> <span class="p">(</span><span class="n">CurTok</span> <span class="o">!=</span> <span class="n">tok_then</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">Error</span><span class="p">(</span><span class="s">"expected then"</span><span class="p">);</span>
+ <span class="n">getNextToken</span><span class="p">();</span> <span class="c1">// eat the then</span>
+
+ <span class="k">auto</span> <span class="n">Then</span> <span class="o">=</span> <span class="n">ParseExpression</span><span class="p">();</span>
+ <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="n">Then</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">nullptr</span><span class="p">;</span>
+
+ <span class="k">if</span> <span class="p">(</span><span class="n">CurTok</span> <span class="o">!=</span> <span class="n">tok_else</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">Error</span><span class="p">(</span><span class="s">"expected else"</span><span class="p">);</span>
+
+ <span class="n">getNextToken</span><span class="p">();</span>
+
+ <span class="k">auto</span> <span class="n">Else</span> <span class="o">=</span> <span class="n">ParseExpression</span><span class="p">();</span>
+ <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="n">Else</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">nullptr</span><span class="p">;</span>
+
+ <span class="k">return</span> <span class="n">llvm</span><span class="o">::</span><span class="n">make_unique</span><span class="o"><</span><span class="n">IfExprAST</span><span class="o">></span><span class="p">(</span><span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">Cond</span><span class="p">),</span> <span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">Then</span><span class="p">),</span>
+ <span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">Else</span><span class="p">));</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+<p>Next we hook it up as a primary expression:</p>
+<div class="highlight-c++"><div class="highlight"><pre><span class="k">static</span> <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">ExprAST</span><span class="o">></span> <span class="n">ParsePrimary</span><span class="p">()</span> <span class="p">{</span>
+ <span class="k">switch</span> <span class="p">(</span><span class="n">CurTok</span><span class="p">)</span> <span class="p">{</span>
+ <span class="nl">default:</span>
+ <span class="k">return</span> <span class="n">Error</span><span class="p">(</span><span class="s">"unknown token when expecting an expression"</span><span class="p">);</span>
+ <span class="k">case</span> <span class="n">tok_identifier</span>:
+ <span class="k">return</span> <span class="n">ParseIdentifierExpr</span><span class="p">();</span>
+ <span class="k">case</span> <span class="n">tok_number</span>:
+ <span class="k">return</span> <span class="n">ParseNumberExpr</span><span class="p">();</span>
+ <span class="k">case</span> <span class="sc">'('</span>:
+ <span class="k">return</span> <span class="n">ParseParenExpr</span><span class="p">();</span>
+ <span class="k">case</span> <span class="n">tok_if</span>:
+ <span class="k">return</span> <span class="n">ParseIfExpr</span><span class="p">();</span>
+ <span class="p">}</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+</div>
+<div class="section" id="llvm-ir-for-if-then-else">
+<h3><a class="toc-backref" href="#id6">5.2.4. LLVM IR for If/Then/Else</a><a class="headerlink" href="#llvm-ir-for-if-then-else" title="Permalink to this headline">¶</a></h3>
+<p>Now that we have it parsing and building the AST, the final piece is
+adding LLVM code generation support. This is the most interesting part
+of the if/then/else example, because this is where it starts to
+introduce new concepts. All of the code above has been thoroughly
+described in previous chapters.</p>
+<p>To motivate the code we want to produce, lets take a look at a simple
+example. Consider:</p>
+<div class="highlight-python"><div class="highlight"><pre>extern foo();
+extern bar();
+def baz(x) if x then foo() else bar();
+</pre></div>
+</div>
+<p>If you disable optimizations, the code you’ll (soon) get from
+Kaleidoscope looks like this:</p>
+<div class="highlight-llvm"><div class="highlight"><pre><span class="k">declare</span> <span class="kt">double</span> <span class="vg">@foo</span><span class="p">()</span>
+
+<span class="k">declare</span> <span class="kt">double</span> <span class="vg">@bar</span><span class="p">()</span>
+
+<span class="k">define</span> <span class="kt">double</span> <span class="vg">@baz</span><span class="p">(</span><span class="kt">double</span> <span class="nv">%x</span><span class="p">)</span> <span class="p">{</span>
+<span class="nl">entry:</span>
+ <span class="nv">%ifcond</span> <span class="p">=</span> <span class="k">fcmp</span> <span class="k">one</span> <span class="kt">double</span> <span class="nv">%x</span><span class="p">,</span> <span class="m">0.000000e+00</span>
+ <span class="k">br</span> <span class="k">i1</span> <span class="nv">%ifcond</span><span class="p">,</span> <span class="kt">label</span> <span class="nv">%then</span><span class="p">,</span> <span class="kt">label</span> <span class="nv">%else</span>
+
+<span class="nl">then:</span> <span class="c">; preds = %entry</span>
+ <span class="nv">%calltmp</span> <span class="p">=</span> <span class="k">call</span> <span class="kt">double</span> <span class="vg">@foo</span><span class="p">()</span>
+ <span class="k">br</span> <span class="kt">label</span> <span class="nv">%ifcont</span>
+
+<span class="nl">else:</span> <span class="c">; preds = %entry</span>
+ <span class="nv">%calltmp1</span> <span class="p">=</span> <span class="k">call</span> <span class="kt">double</span> <span class="vg">@bar</span><span class="p">()</span>
+ <span class="k">br</span> <span class="kt">label</span> <span class="nv">%ifcont</span>
+
+<span class="nl">ifcont:</span> <span class="c">; preds = %else, %then</span>
+ <span class="nv">%iftmp</span> <span class="p">=</span> <span class="k">phi</span> <span class="kt">double</span> <span class="p">[</span> <span class="nv">%calltmp</span><span class="p">,</span> <span class="nv">%then</span> <span class="p">],</span> <span class="p">[</span> <span class="nv">%calltmp1</span><span class="p">,</span> <span class="nv">%else</span> <span class="p">]</span>
+ <span class="k">ret</span> <span class="kt">double</span> <span class="nv">%iftmp</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+<p>To visualize the control flow graph, you can use a nifty feature of the
+LLVM ‘<a class="reference external" href="http://llvm.org/cmds/opt.html">opt</a>‘ tool. If you put this LLVM
+IR into “t.ll” and run “<tt class="docutils literal"><span class="pre">llvm-as</span> <span class="pre"><</span> <span class="pre">t.ll</span> <span class="pre">|</span> <span class="pre">opt</span> <span class="pre">-analyze</span> <span class="pre">-view-cfg</span></tt>”, <a class="reference external" href="../ProgrammersManual.html#viewing-graphs-while-debugging-code">a
+window will pop up</a> and you’ll
+see this graph:</p>
+<div class="figure align-center">
+<img alt="Example CFG" src="../_images/LangImpl5-cfg.png" />
+<p class="caption">Example CFG</p>
+</div>
+<p>Another way to get this is to call “<tt class="docutils literal"><span class="pre">F->viewCFG()</span></tt>” or
+“<tt class="docutils literal"><span class="pre">F->viewCFGOnly()</span></tt>” (where F is a “<tt class="docutils literal"><span class="pre">Function*</span></tt>”) either by
+inserting actual calls into the code and recompiling or by calling these
+in the debugger. LLVM has many nice features for visualizing various
+graphs.</p>
+<p>Getting back to the generated code, it is fairly simple: the entry block
+evaluates the conditional expression (“x” in our case here) and compares
+the result to 0.0 with the “<tt class="docutils literal"><span class="pre">fcmp</span> <span class="pre">one</span></tt>” instruction (‘one’ is “Ordered
+and Not Equal”). Based on the result of this expression, the code jumps
+to either the “then” or “else” blocks, which contain the expressions for
+the true/false cases.</p>
+<p>Once the then/else blocks are finished executing, they both branch back
+to the ‘ifcont’ block to execute the code that happens after the
+if/then/else. In this case the only thing left to do is to return to the
+caller of the function. The question then becomes: how does the code
+know which expression to return?</p>
+<p>The answer to this question involves an important SSA operation: the
+<a class="reference external" href="http://en.wikipedia.org/wiki/Static_single_assignment_form">Phi
+operation</a>.
+If you’re not familiar with SSA, <a class="reference external" href="http://en.wikipedia.org/wiki/Static_single_assignment_form">the wikipedia
+article</a>
+is a good introduction and there are various other introductions to it
+available on your favorite search engine. The short version is that
+“execution” of the Phi operation requires “remembering” which block
+control came from. The Phi operation takes on the value corresponding to
+the input control block. In this case, if control comes in from the
+“then” block, it gets the value of “calltmp”. If control comes from the
+“else” block, it gets the value of “calltmp1”.</p>
+<p>At this point, you are probably starting to think “Oh no! This means my
+simple and elegant front-end will have to start generating SSA form in
+order to use LLVM!”. Fortunately, this is not the case, and we strongly
+advise <em>not</em> implementing an SSA construction algorithm in your
+front-end unless there is an amazingly good reason to do so. In
+practice, there are two sorts of values that float around in code
+written for your average imperative programming language that might need
+Phi nodes:</p>
+<ol class="arabic simple">
+<li>Code that involves user variables: <tt class="docutils literal"><span class="pre">x</span> <span class="pre">=</span> <span class="pre">1;</span> <span class="pre">x</span> <span class="pre">=</span> <span class="pre">x</span> <span class="pre">+</span> <span class="pre">1;</span></tt></li>
+<li>Values that are implicit in the structure of your AST, such as the
+Phi node in this case.</li>
+</ol>
+<p>In <a class="reference external" href="LangImpl7.html">Chapter 7</a> of this tutorial (“mutable variables”),
+we’ll talk about #1 in depth. For now, just believe me that you don’t
+need SSA construction to handle this case. For #2, you have the choice
+of using the techniques that we will describe for #1, or you can insert
+Phi nodes directly, if convenient. In this case, it is really
+easy to generate the Phi node, so we choose to do it directly.</p>
+<p>Okay, enough of the motivation and overview, lets generate code!</p>
+</div>
+<div class="section" id="code-generation-for-if-then-else">
+<h3><a class="toc-backref" href="#id7">5.2.5. Code Generation for If/Then/Else</a><a class="headerlink" href="#code-generation-for-if-then-else" title="Permalink to this headline">¶</a></h3>
+<p>In order to generate code for this, we implement the <tt class="docutils literal"><span class="pre">codegen</span></tt> method
+for <tt class="docutils literal"><span class="pre">IfExprAST</span></tt>:</p>
+<div class="highlight-c++"><div class="highlight"><pre><span class="n">Value</span> <span class="o">*</span><span class="n">IfExprAST</span><span class="o">::</span><span class="n">codegen</span><span class="p">()</span> <span class="p">{</span>
+ <span class="n">Value</span> <span class="o">*</span><span class="n">CondV</span> <span class="o">=</span> <span class="n">Cond</span><span class="o">-></span><span class="n">codegen</span><span class="p">();</span>
+ <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="n">CondV</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">nullptr</span><span class="p">;</span>
+
+ <span class="c1">// Convert condition to a bool by comparing equal to 0.0.</span>
+ <span class="n">CondV</span> <span class="o">=</span> <span class="n">Builder</span><span class="p">.</span><span class="n">CreateFCmpONE</span><span class="p">(</span>
+ <span class="n">CondV</span><span class="p">,</span> <span class="n">ConstantFP</span><span class="o">::</span><span class="n">get</span><span class="p">(</span><span class="n">getGlobalContext</span><span class="p">(),</span> <span class="n">APFloat</span><span class="p">(</span><span class="mf">0.0</span><span class="p">)),</span> <span class="s">"ifcond"</span><span class="p">);</span>
+</pre></div>
+</div>
+<p>This code is straightforward and similar to what we saw before. We emit
+the expression for the condition, then compare that value to zero to get
+a truth value as a 1-bit (bool) value.</p>
+<div class="highlight-c++"><div class="highlight"><pre><span class="n">Function</span> <span class="o">*</span><span class="n">TheFunction</span> <span class="o">=</span> <span class="n">Builder</span><span class="p">.</span><span class="n">GetInsertBlock</span><span class="p">()</span><span class="o">-></span><span class="n">getParent</span><span class="p">();</span>
+
+<span class="c1">// Create blocks for the then and else cases. Insert the 'then' block at the</span>
+<span class="c1">// end of the function.</span>
+<span class="n">BasicBlock</span> <span class="o">*</span><span class="n">ThenBB</span> <span class="o">=</span>
+ <span class="n">BasicBlock</span><span class="o">::</span><span class="n">Create</span><span class="p">(</span><span class="n">getGlobalContext</span><span class="p">(),</span> <span class="s">"then"</span><span class="p">,</span> <span class="n">TheFunction</span><span class="p">);</span>
+<span class="n">BasicBlock</span> <span class="o">*</span><span class="n">ElseBB</span> <span class="o">=</span> <span class="n">BasicBlock</span><span class="o">::</span><span class="n">Create</span><span class="p">(</span><span class="n">getGlobalContext</span><span class="p">(),</span> <span class="s">"else"</span><span class="p">);</span>
+<span class="n">BasicBlock</span> <span class="o">*</span><span class="n">MergeBB</span> <span class="o">=</span> <span class="n">BasicBlock</span><span class="o">::</span><span class="n">Create</span><span class="p">(</span><span class="n">getGlobalContext</span><span class="p">(),</span> <span class="s">"ifcont"</span><span class="p">);</span>
+
+<span class="n">Builder</span><span class="p">.</span><span class="n">CreateCondBr</span><span class="p">(</span><span class="n">CondV</span><span class="p">,</span> <span class="n">ThenBB</span><span class="p">,</span> <span class="n">ElseBB</span><span class="p">);</span>
+</pre></div>
+</div>
+<p>This code creates the basic blocks that are related to the if/then/else
+statement, and correspond directly to the blocks in the example above.
+The first line gets the current Function object that is being built. It
+gets this by asking the builder for the current BasicBlock, and asking
+that block for its “parent” (the function it is currently embedded
+into).</p>
+<p>Once it has that, it creates three blocks. Note that it passes
+“TheFunction” into the constructor for the “then” block. This causes the
+constructor to automatically insert the new block into the end of the
+specified function. The other two blocks are created, but aren’t yet
+inserted into the function.</p>
+<p>Once the blocks are created, we can emit the conditional branch that
+chooses between them. Note that creating new blocks does not implicitly
+affect the IRBuilder, so it is still inserting into the block that the
+condition went into. Also note that it is creating a branch to the
+“then” block and the “else” block, even though the “else” block isn’t
+inserted into the function yet. This is all ok: it is the standard way
+that LLVM supports forward references.</p>
+<div class="highlight-c++"><div class="highlight"><pre><span class="c1">// Emit then value.</span>
+<span class="n">Builder</span><span class="p">.</span><span class="n">SetInsertPoint</span><span class="p">(</span><span class="n">ThenBB</span><span class="p">);</span>
+
+<span class="n">Value</span> <span class="o">*</span><span class="n">ThenV</span> <span class="o">=</span> <span class="n">Then</span><span class="o">-></span><span class="n">codegen</span><span class="p">();</span>
+<span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="n">ThenV</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">nullptr</span><span class="p">;</span>
+
+<span class="n">Builder</span><span class="p">.</span><span class="n">CreateBr</span><span class="p">(</span><span class="n">MergeBB</span><span class="p">);</span>
+<span class="c1">// Codegen of 'Then' can change the current block, update ThenBB for the PHI.</span>
+<span class="n">ThenBB</span> <span class="o">=</span> <span class="n">Builder</span><span class="p">.</span><span class="n">GetInsertBlock</span><span class="p">();</span>
+</pre></div>
+</div>
+<p>After the conditional branch is inserted, we move the builder to start
+inserting into the “then” block. Strictly speaking, this call moves the
+insertion point to be at the end of the specified block. However, since
+the “then” block is empty, it also starts out by inserting at the
+beginning of the block. :)</p>
+<p>Once the insertion point is set, we recursively codegen the “then”
+expression from the AST. To finish off the “then” block, we create an
+unconditional branch to the merge block. One interesting (and very
+important) aspect of the LLVM IR is that it <a class="reference external" href="../LangRef.html#functionstructure">requires all basic blocks
+to be “terminated”</a> with a <a class="reference external" href="../LangRef.html#terminators">control
+flow instruction</a> such as return or
+branch. This means that all control flow, <em>including fall throughs</em> must
+be made explicit in the LLVM IR. If you violate this rule, the verifier
+will emit an error.</p>
+<p>The final line here is quite subtle, but is very important. The basic
+issue is that when we create the Phi node in the merge block, we need to
+set up the block/value pairs that indicate how the Phi will work.
+Importantly, the Phi node expects to have an entry for each predecessor
+of the block in the CFG. Why then, are we getting the current block when
+we just set it to ThenBB 5 lines above? The problem is that the “Then”
+expression may actually itself change the block that the Builder is
+emitting into if, for example, it contains a nested “if/then/else”
+expression. Because calling <tt class="docutils literal"><span class="pre">codegen()</span></tt> recursively could arbitrarily change
+the notion of the current block, we are required to get an up-to-date
+value for code that will set up the Phi node.</p>
+<div class="highlight-c++"><div class="highlight"><pre><span class="c1">// Emit else block.</span>
+<span class="n">TheFunction</span><span class="o">-></span><span class="n">getBasicBlockList</span><span class="p">().</span><span class="n">push_back</span><span class="p">(</span><span class="n">ElseBB</span><span class="p">);</span>
+<span class="n">Builder</span><span class="p">.</span><span class="n">SetInsertPoint</span><span class="p">(</span><span class="n">ElseBB</span><span class="p">);</span>
+
+<span class="n">Value</span> <span class="o">*</span><span class="n">ElseV</span> <span class="o">=</span> <span class="n">Else</span><span class="o">-></span><span class="n">codegen</span><span class="p">();</span>
+<span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="n">ElseV</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">nullptr</span><span class="p">;</span>
+
+<span class="n">Builder</span><span class="p">.</span><span class="n">CreateBr</span><span class="p">(</span><span class="n">MergeBB</span><span class="p">);</span>
+<span class="c1">// codegen of 'Else' can change the current block, update ElseBB for the PHI.</span>
+<span class="n">ElseBB</span> <span class="o">=</span> <span class="n">Builder</span><span class="p">.</span><span class="n">GetInsertBlock</span><span class="p">();</span>
+</pre></div>
+</div>
+<p>Code generation for the ‘else’ block is basically identical to codegen
+for the ‘then’ block. The only significant difference is the first line,
+which adds the ‘else’ block to the function. Recall previously that the
+‘else’ block was created, but not added to the function. Now that the
+‘then’ and ‘else’ blocks are emitted, we can finish up with the merge
+code:</p>
+<div class="highlight-c++"><div class="highlight"><pre> <span class="c1">// Emit merge block.</span>
+ <span class="n">TheFunction</span><span class="o">-></span><span class="n">getBasicBlockList</span><span class="p">().</span><span class="n">push_back</span><span class="p">(</span><span class="n">MergeBB</span><span class="p">);</span>
+ <span class="n">Builder</span><span class="p">.</span><span class="n">SetInsertPoint</span><span class="p">(</span><span class="n">MergeBB</span><span class="p">);</span>
+ <span class="n">PHINode</span> <span class="o">*</span><span class="n">PN</span> <span class="o">=</span>
+ <span class="n">Builder</span><span class="p">.</span><span class="n">CreatePHI</span><span class="p">(</span><span class="n">Type</span><span class="o">::</span><span class="n">getDoubleTy</span><span class="p">(</span><span class="n">getGlobalContext</span><span class="p">()),</span> <span class="mi">2</span><span class="p">,</span> <span class="s">"iftmp"</span><span class="p">);</span>
+
+ <span class="n">PN</span><span class="o">-></span><span class="n">addIncoming</span><span class="p">(</span><span class="n">ThenV</span><span class="p">,</span> <span class="n">ThenBB</span><span class="p">);</span>
+ <span class="n">PN</span><span class="o">-></span><span class="n">addIncoming</span><span class="p">(</span><span class="n">ElseV</span><span class="p">,</span> <span class="n">ElseBB</span><span class="p">);</span>
+ <span class="k">return</span> <span class="n">PN</span><span class="p">;</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+<p>The first two lines here are now familiar: the first adds the “merge”
+block to the Function object (it was previously floating, like the else
+block above). The second changes the insertion point so that newly
+created code will go into the “merge” block. Once that is done, we need
+to create the PHI node and set up the block/value pairs for the PHI.</p>
+<p>Finally, the CodeGen function returns the phi node as the value computed
+by the if/then/else expression. In our example above, this returned
+value will feed into the code for the top-level function, which will
+create the return instruction.</p>
+<p>Overall, we now have the ability to execute conditional code in
+Kaleidoscope. With this extension, Kaleidoscope is a fairly complete
+language that can calculate a wide variety of numeric functions. Next up
+we’ll add another useful expression that is familiar from non-functional
+languages...</p>
+</div>
+</div>
+<div class="section" id="for-loop-expression">
+<h2><a class="toc-backref" href="#id8">5.3. ‘for’ Loop Expression</a><a class="headerlink" href="#for-loop-expression" title="Permalink to this headline">¶</a></h2>
+<p>Now that we know how to add basic control flow constructs to the
+language, we have the tools to add more powerful things. Lets add
+something more aggressive, a ‘for’ expression:</p>
+<div class="highlight-python"><div class="highlight"><pre>extern putchard(char)
+def printstar(n)
+ for i = 1, i < n, 1.0 in
+ putchard(42); # ascii 42 = '*'
+
+# print 100 '*' characters
+printstar(100);
+</pre></div>
+</div>
+<p>This expression defines a new variable (“i” in this case) which iterates
+from a starting value, while the condition (“i < n” in this case) is
+true, incrementing by an optional step value (“1.0” in this case). If
+the step value is omitted, it defaults to 1.0. While the loop is true,
+it executes its body expression. Because we don’t have anything better
+to return, we’ll just define the loop as always returning 0.0. In the
+future when we have mutable variables, it will get more useful.</p>
+<p>As before, lets talk about the changes that we need to Kaleidoscope to
+support this.</p>
+<div class="section" id="lexer-extensions-for-the-for-loop">
+<h3><a class="toc-backref" href="#id9">5.3.1. Lexer Extensions for the ‘for’ Loop</a><a class="headerlink" href="#lexer-extensions-for-the-for-loop" title="Permalink to this headline">¶</a></h3>
+<p>The lexer extensions are the same sort of thing as for if/then/else:</p>
+<div class="highlight-c++"><div class="highlight"><pre><span class="p">...</span> <span class="n">in</span> <span class="k">enum</span> <span class="n">Token</span> <span class="p">...</span>
+<span class="c1">// control</span>
+<span class="n">tok_if</span> <span class="o">=</span> <span class="o">-</span><span class="mi">6</span><span class="p">,</span> <span class="n">tok_then</span> <span class="o">=</span> <span class="o">-</span><span class="mi">7</span><span class="p">,</span> <span class="n">tok_else</span> <span class="o">=</span> <span class="o">-</span><span class="mi">8</span><span class="p">,</span>
+<span class="n">tok_for</span> <span class="o">=</span> <span class="o">-</span><span class="mi">9</span><span class="p">,</span> <span class="n">tok_in</span> <span class="o">=</span> <span class="o">-</span><span class="mi">10</span>
+
+<span class="p">...</span> <span class="n">in</span> <span class="n">gettok</span> <span class="p">...</span>
+<span class="k">if</span> <span class="p">(</span><span class="n">IdentifierStr</span> <span class="o">==</span> <span class="s">"def"</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">tok_def</span><span class="p">;</span>
+<span class="k">if</span> <span class="p">(</span><span class="n">IdentifierStr</span> <span class="o">==</span> <span class="s">"extern"</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">tok_extern</span><span class="p">;</span>
+<span class="k">if</span> <span class="p">(</span><span class="n">IdentifierStr</span> <span class="o">==</span> <span class="s">"if"</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">tok_if</span><span class="p">;</span>
+<span class="k">if</span> <span class="p">(</span><span class="n">IdentifierStr</span> <span class="o">==</span> <span class="s">"then"</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">tok_then</span><span class="p">;</span>
+<span class="k">if</span> <span class="p">(</span><span class="n">IdentifierStr</span> <span class="o">==</span> <span class="s">"else"</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">tok_else</span><span class="p">;</span>
+<span class="k">if</span> <span class="p">(</span><span class="n">IdentifierStr</span> <span class="o">==</span> <span class="s">"for"</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">tok_for</span><span class="p">;</span>
+<span class="k">if</span> <span class="p">(</span><span class="n">IdentifierStr</span> <span class="o">==</span> <span class="s">"in"</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">tok_in</span><span class="p">;</span>
+<span class="k">return</span> <span class="n">tok_identifier</span><span class="p">;</span>
+</pre></div>
+</div>
+</div>
+<div class="section" id="ast-extensions-for-the-for-loop">
+<h3><a class="toc-backref" href="#id10">5.3.2. AST Extensions for the ‘for’ Loop</a><a class="headerlink" href="#ast-extensions-for-the-for-loop" title="Permalink to this headline">¶</a></h3>
+<p>The AST node is just as simple. It basically boils down to capturing the
+variable name and the constituent expressions in the node.</p>
+<div class="highlight-c++"><div class="highlight"><pre><span class="c1">/// ForExprAST - Expression class for for/in.</span>
+<span class="k">class</span> <span class="nc">ForExprAST</span> <span class="o">:</span> <span class="k">public</span> <span class="n">ExprAST</span> <span class="p">{</span>
+ <span class="n">std</span><span class="o">::</span><span class="n">string</span> <span class="n">VarName</span><span class="p">;</span>
+ <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">ExprAST</span><span class="o">></span> <span class="n">Start</span><span class="p">,</span> <span class="n">End</span><span class="p">,</span> <span class="n">Step</span><span class="p">,</span> <span class="n">Body</span><span class="p">;</span>
+
+<span class="nl">public:</span>
+ <span class="n">ForExprAST</span><span class="p">(</span><span class="k">const</span> <span class="n">std</span><span class="o">::</span><span class="n">string</span> <span class="o">&</span><span class="n">VarName</span><span class="p">,</span> <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">ExprAST</span><span class="o">></span> <span class="n">Start</span><span class="p">,</span>
+ <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">ExprAST</span><span class="o">></span> <span class="n">End</span><span class="p">,</span> <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">ExprAST</span><span class="o">></span> <span class="n">Step</span><span class="p">,</span>
+ <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">ExprAST</span><span class="o">></span> <span class="n">Body</span><span class="p">)</span>
+ <span class="o">:</span> <span class="n">VarName</span><span class="p">(</span><span class="n">VarName</span><span class="p">),</span> <span class="n">Start</span><span class="p">(</span><span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">Start</span><span class="p">)),</span> <span class="n">End</span><span class="p">(</span><span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">End</span><span class="p">)),</span>
+ <span class="n">Step</span><span class="p">(</span><span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">Step</span><span class="p">)),</span> <span class="n">Body</span><span class="p">(</span><span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">Body</span><span class="p">))</span> <span class="p">{}</span>
+ <span class="k">virtual</span> <span class="n">Value</span> <span class="o">*</span><span class="n">codegen</span><span class="p">();</span>
+<span class="p">};</span>
+</pre></div>
+</div>
+</div>
+<div class="section" id="parser-extensions-for-the-for-loop">
+<h3><a class="toc-backref" href="#id11">5.3.3. Parser Extensions for the ‘for’ Loop</a><a class="headerlink" href="#parser-extensions-for-the-for-loop" title="Permalink to this headline">¶</a></h3>
+<p>The parser code is also fairly standard. The only interesting thing here
+is handling of the optional step value. The parser code handles it by
+checking to see if the second comma is present. If not, it sets the step
+value to null in the AST node:</p>
+<div class="highlight-c++"><div class="highlight"><pre><span class="c1">/// forexpr ::= 'for' identifier '=' expr ',' expr (',' expr)? 'in' expression</span>
+<span class="k">static</span> <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">ExprAST</span><span class="o">></span> <span class="n">ParseForExpr</span><span class="p">()</span> <span class="p">{</span>
+ <span class="n">getNextToken</span><span class="p">();</span> <span class="c1">// eat the for.</span>
+
+ <span class="k">if</span> <span class="p">(</span><span class="n">CurTok</span> <span class="o">!=</span> <span class="n">tok_identifier</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">Error</span><span class="p">(</span><span class="s">"expected identifier after for"</span><span class="p">);</span>
+
+ <span class="n">std</span><span class="o">::</span><span class="n">string</span> <span class="n">IdName</span> <span class="o">=</span> <span class="n">IdentifierStr</span><span class="p">;</span>
+ <span class="n">getNextToken</span><span class="p">();</span> <span class="c1">// eat identifier.</span>
+
+ <span class="k">if</span> <span class="p">(</span><span class="n">CurTok</span> <span class="o">!=</span> <span class="sc">'='</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">Error</span><span class="p">(</span><span class="s">"expected '=' after for"</span><span class="p">);</span>
+ <span class="n">getNextToken</span><span class="p">();</span> <span class="c1">// eat '='.</span>
+
+
+ <span class="k">auto</span> <span class="n">Start</span> <span class="o">=</span> <span class="n">ParseExpression</span><span class="p">();</span>
+ <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="n">Start</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">nullptr</span><span class="p">;</span>
+ <span class="k">if</span> <span class="p">(</span><span class="n">CurTok</span> <span class="o">!=</span> <span class="sc">','</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">Error</span><span class="p">(</span><span class="s">"expected ',' after for start value"</span><span class="p">);</span>
+ <span class="n">getNextToken</span><span class="p">();</span>
+
+ <span class="k">auto</span> <span class="n">End</span> <span class="o">=</span> <span class="n">ParseExpression</span><span class="p">();</span>
+ <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="n">End</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">nullptr</span><span class="p">;</span>
+
+ <span class="c1">// The step value is optional.</span>
+ <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">ExprAST</span><span class="o">></span> <span class="n">Step</span><span class="p">;</span>
+ <span class="k">if</span> <span class="p">(</span><span class="n">CurTok</span> <span class="o">==</span> <span class="sc">','</span><span class="p">)</span> <span class="p">{</span>
+ <span class="n">getNextToken</span><span class="p">();</span>
+ <span class="n">Step</span> <span class="o">=</span> <span class="n">ParseExpression</span><span class="p">();</span>
+ <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="n">Step</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">nullptr</span><span class="p">;</span>
+ <span class="p">}</span>
+
+ <span class="k">if</span> <span class="p">(</span><span class="n">CurTok</span> <span class="o">!=</span> <span class="n">tok_in</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">Error</span><span class="p">(</span><span class="s">"expected 'in' after for"</span><span class="p">);</span>
+ <span class="n">getNextToken</span><span class="p">();</span> <span class="c1">// eat 'in'.</span>
+
+ <span class="k">auto</span> <span class="n">Body</span> <span class="o">=</span> <span class="n">ParseExpression</span><span class="p">();</span>
+ <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="n">Body</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">nullptr</span><span class="p">;</span>
+
+ <span class="k">return</span> <span class="n">llvm</span><span class="o">::</span><span class="n">make_unique</span><span class="o"><</span><span class="n">ForExprAST</span><span class="o">></span><span class="p">(</span><span class="n">IdName</span><span class="p">,</span> <span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">Start</span><span class="p">),</span>
+ <span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">End</span><span class="p">),</span> <span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">Step</span><span class="p">),</span>
+ <span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">Body</span><span class="p">));</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+</div>
+<div class="section" id="llvm-ir-for-the-for-loop">
+<h3><a class="toc-backref" href="#id12">5.3.4. LLVM IR for the ‘for’ Loop</a><a class="headerlink" href="#llvm-ir-for-the-for-loop" title="Permalink to this headline">¶</a></h3>
+<p>Now we get to the good part: the LLVM IR we want to generate for this
+thing. With the simple example above, we get this LLVM IR (note that
+this dump is generated with optimizations disabled for clarity):</p>
+<div class="highlight-llvm"><div class="highlight"><pre><span class="k">declare</span> <span class="kt">double</span> <span class="vg">@putchard</span><span class="p">(</span><span class="kt">double</span><span class="p">)</span>
+
+<span class="k">define</span> <span class="kt">double</span> <span class="vg">@printstar</span><span class="p">(</span><span class="kt">double</span> <span class="nv">%n</span><span class="p">)</span> <span class="p">{</span>
+<span class="nl">entry:</span>
+ <span class="c">; initial value = 1.0 (inlined into phi)</span>
+ <span class="k">br</span> <span class="kt">label</span> <span class="nv">%loop</span>
+
+<span class="nl">loop:</span> <span class="c">; preds = %loop, %entry</span>
+ <span class="nv">%i</span> <span class="p">=</span> <span class="k">phi</span> <span class="kt">double</span> <span class="p">[</span> <span class="m">1.000000e+00</span><span class="p">,</span> <span class="nv">%entry</span> <span class="p">],</span> <span class="p">[</span> <span class="nv">%nextvar</span><span class="p">,</span> <span class="nv">%loop</span> <span class="p">]</span>
+ <span class="c">; body</span>
+ <span class="nv">%calltmp</span> <span class="p">=</span> <span class="k">call</span> <span class="kt">double</span> <span class="vg">@putchard</span><span class="p">(</span><span class="kt">double</span> <span class="m">4.200000e+01</span><span class="p">)</span>
+ <span class="c">; increment</span>
+ <span class="nv">%nextvar</span> <span class="p">=</span> <span class="k">fadd</span> <span class="kt">double</span> <span class="nv">%i</span><span class="p">,</span> <span class="m">1.000000e+00</span>
+
+ <span class="c">; termination test</span>
+ <span class="nv">%cmptmp</span> <span class="p">=</span> <span class="k">fcmp</span> <span class="k">ult</span> <span class="kt">double</span> <span class="nv">%i</span><span class="p">,</span> <span class="nv">%n</span>
+ <span class="nv">%booltmp</span> <span class="p">=</span> <span class="k">uitofp</span> <span class="k">i1</span> <span class="nv">%cmptmp</span> <span class="k">to</span> <span class="kt">double</span>
+ <span class="nv">%loopcond</span> <span class="p">=</span> <span class="k">fcmp</span> <span class="k">one</span> <span class="kt">double</span> <span class="nv">%booltmp</span><span class="p">,</span> <span class="m">0.000000e+00</span>
+ <span class="k">br</span> <span class="k">i1</span> <span class="nv">%loopcond</span><span class="p">,</span> <span class="kt">label</span> <span class="nv">%loop</span><span class="p">,</span> <span class="kt">label</span> <span class="nv">%afterloop</span>
+
+<span class="nl">afterloop:</span> <span class="c">; preds = %loop</span>
+ <span class="c">; loop always returns 0.0</span>
+ <span class="k">ret</span> <span class="kt">double</span> <span class="m">0.000000e+00</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+<p>This loop contains all the same constructs we saw before: a phi node,
+several expressions, and some basic blocks. Lets see how this fits
+together.</p>
+</div>
+<div class="section" id="code-generation-for-the-for-loop">
+<h3><a class="toc-backref" href="#id13">5.3.5. Code Generation for the ‘for’ Loop</a><a class="headerlink" href="#code-generation-for-the-for-loop" title="Permalink to this headline">¶</a></h3>
+<p>The first part of codegen is very simple: we just output the start
+expression for the loop value:</p>
+<div class="highlight-c++"><div class="highlight"><pre><span class="n">Value</span> <span class="o">*</span><span class="n">ForExprAST</span><span class="o">::</span><span class="n">codegen</span><span class="p">()</span> <span class="p">{</span>
+ <span class="c1">// Emit the start code first, without 'variable' in scope.</span>
+ <span class="n">Value</span> <span class="o">*</span><span class="n">StartVal</span> <span class="o">=</span> <span class="n">Start</span><span class="o">-></span><span class="n">codegen</span><span class="p">();</span>
+ <span class="k">if</span> <span class="p">(</span><span class="n">StartVal</span> <span class="o">==</span> <span class="mi">0</span><span class="p">)</span> <span class="k">return</span> <span class="mi">0</span><span class="p">;</span>
+</pre></div>
+</div>
+<p>With this out of the way, the next step is to set up the LLVM basic
+block for the start of the loop body. In the case above, the whole loop
+body is one block, but remember that the body code itself could consist
+of multiple blocks (e.g. if it contains an if/then/else or a for/in
+expression).</p>
+<div class="highlight-c++"><div class="highlight"><pre><span class="c1">// Make the new basic block for the loop header, inserting after current</span>
+<span class="c1">// block.</span>
+<span class="n">Function</span> <span class="o">*</span><span class="n">TheFunction</span> <span class="o">=</span> <span class="n">Builder</span><span class="p">.</span><span class="n">GetInsertBlock</span><span class="p">()</span><span class="o">-></span><span class="n">getParent</span><span class="p">();</span>
+<span class="n">BasicBlock</span> <span class="o">*</span><span class="n">PreheaderBB</span> <span class="o">=</span> <span class="n">Builder</span><span class="p">.</span><span class="n">GetInsertBlock</span><span class="p">();</span>
+<span class="n">BasicBlock</span> <span class="o">*</span><span class="n">LoopBB</span> <span class="o">=</span>
+ <span class="n">BasicBlock</span><span class="o">::</span><span class="n">Create</span><span class="p">(</span><span class="n">getGlobalContext</span><span class="p">(),</span> <span class="s">"loop"</span><span class="p">,</span> <span class="n">TheFunction</span><span class="p">);</span>
+
+<span class="c1">// Insert an explicit fall through from the current block to the LoopBB.</span>
+<span class="n">Builder</span><span class="p">.</span><span class="n">CreateBr</span><span class="p">(</span><span class="n">LoopBB</span><span class="p">);</span>
+</pre></div>
+</div>
+<p>This code is similar to what we saw for if/then/else. Because we will
+need it to create the Phi node, we remember the block that falls through
+into the loop. Once we have that, we create the actual block that starts
+the loop and create an unconditional branch for the fall-through between
+the two blocks.</p>
+<div class="highlight-c++"><div class="highlight"><pre><span class="c1">// Start insertion in LoopBB.</span>
+<span class="n">Builder</span><span class="p">.</span><span class="n">SetInsertPoint</span><span class="p">(</span><span class="n">LoopBB</span><span class="p">);</span>
+
+<span class="c1">// Start the PHI node with an entry for Start.</span>
+<span class="n">PHINode</span> <span class="o">*</span><span class="n">Variable</span> <span class="o">=</span> <span class="n">Builder</span><span class="p">.</span><span class="n">CreatePHI</span><span class="p">(</span><span class="n">Type</span><span class="o">::</span><span class="n">getDoubleTy</span><span class="p">(</span><span class="n">getGlobalContext</span><span class="p">()),</span>
+ <span class="mi">2</span><span class="p">,</span> <span class="n">VarName</span><span class="p">.</span><span class="n">c_str</span><span class="p">());</span>
+<span class="n">Variable</span><span class="o">-></span><span class="n">addIncoming</span><span class="p">(</span><span class="n">StartVal</span><span class="p">,</span> <span class="n">PreheaderBB</span><span class="p">);</span>
+</pre></div>
+</div>
+<p>Now that the “preheader” for the loop is set up, we switch to emitting
+code for the loop body. To begin with, we move the insertion point and
+create the PHI node for the loop induction variable. Since we already
+know the incoming value for the starting value, we add it to the Phi
+node. Note that the Phi will eventually get a second value for the
+backedge, but we can’t set it up yet (because it doesn’t exist!).</p>
+<div class="highlight-c++"><div class="highlight"><pre><span class="c1">// Within the loop, the variable is defined equal to the PHI node. If it</span>
+<span class="c1">// shadows an existing variable, we have to restore it, so save it now.</span>
+<span class="n">Value</span> <span class="o">*</span><span class="n">OldVal</span> <span class="o">=</span> <span class="n">NamedValues</span><span class="p">[</span><span class="n">VarName</span><span class="p">];</span>
+<span class="n">NamedValues</span><span class="p">[</span><span class="n">VarName</span><span class="p">]</span> <span class="o">=</span> <span class="n">Variable</span><span class="p">;</span>
+
+<span class="c1">// Emit the body of the loop. This, like any other expr, can change the</span>
+<span class="c1">// current BB. Note that we ignore the value computed by the body, but don't</span>
+<span class="c1">// allow an error.</span>
+<span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="n">Body</span><span class="o">-></span><span class="n">codegen</span><span class="p">())</span>
+ <span class="k">return</span> <span class="n">nullptr</span><span class="p">;</span>
+</pre></div>
+</div>
+<p>Now the code starts to get more interesting. Our ‘for’ loop introduces a
+new variable to the symbol table. This means that our symbol table can
+now contain either function arguments or loop variables. To handle this,
+before we codegen the body of the loop, we add the loop variable as the
+current value for its name. Note that it is possible that there is a
+variable of the same name in the outer scope. It would be easy to make
+this an error (emit an error and return null if there is already an
+entry for VarName) but we choose to allow shadowing of variables. In
+order to handle this correctly, we remember the Value that we are
+potentially shadowing in <tt class="docutils literal"><span class="pre">OldVal</span></tt> (which will be null if there is no
+shadowed variable).</p>
+<p>Once the loop variable is set into the symbol table, the code
+recursively codegen’s the body. This allows the body to use the loop
+variable: any references to it will naturally find it in the symbol
+table.</p>
+<div class="highlight-c++"><div class="highlight"><pre><span class="c1">// Emit the step value.</span>
+<span class="n">Value</span> <span class="o">*</span><span class="n">StepVal</span> <span class="o">=</span> <span class="n">nullptr</span><span class="p">;</span>
+<span class="k">if</span> <span class="p">(</span><span class="n">Step</span><span class="p">)</span> <span class="p">{</span>
+ <span class="n">StepVal</span> <span class="o">=</span> <span class="n">Step</span><span class="o">-></span><span class="n">codegen</span><span class="p">();</span>
+ <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="n">StepVal</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">nullptr</span><span class="p">;</span>
+<span class="p">}</span> <span class="k">else</span> <span class="p">{</span>
+ <span class="c1">// If not specified, use 1.0.</span>
+ <span class="n">StepVal</span> <span class="o">=</span> <span class="n">ConstantFP</span><span class="o">::</span><span class="n">get</span><span class="p">(</span><span class="n">getGlobalContext</span><span class="p">(),</span> <span class="n">APFloat</span><span class="p">(</span><span class="mf">1.0</span><span class="p">));</span>
+<span class="p">}</span>
+
+<span class="n">Value</span> <span class="o">*</span><span class="n">NextVar</span> <span class="o">=</span> <span class="n">Builder</span><span class="p">.</span><span class="n">CreateFAdd</span><span class="p">(</span><span class="n">Variable</span><span class="p">,</span> <span class="n">StepVal</span><span class="p">,</span> <span class="s">"nextvar"</span><span class="p">);</span>
+</pre></div>
+</div>
+<p>Now that the body is emitted, we compute the next value of the iteration
+variable by adding the step value, or 1.0 if it isn’t present.
+‘<tt class="docutils literal"><span class="pre">NextVar</span></tt>‘ will be the value of the loop variable on the next
+iteration of the loop.</p>
+<div class="highlight-c++"><div class="highlight"><pre><span class="c1">// Compute the end condition.</span>
+<span class="n">Value</span> <span class="o">*</span><span class="n">EndCond</span> <span class="o">=</span> <span class="n">End</span><span class="o">-></span><span class="n">codegen</span><span class="p">();</span>
+<span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="n">EndCond</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">nullptr</span><span class="p">;</span>
+
+<span class="c1">// Convert condition to a bool by comparing equal to 0.0.</span>
+<span class="n">EndCond</span> <span class="o">=</span> <span class="n">Builder</span><span class="p">.</span><span class="n">CreateFCmpONE</span><span class="p">(</span>
+ <span class="n">EndCond</span><span class="p">,</span> <span class="n">ConstantFP</span><span class="o">::</span><span class="n">get</span><span class="p">(</span><span class="n">getGlobalContext</span><span class="p">(),</span> <span class="n">APFloat</span><span class="p">(</span><span class="mf">0.0</span><span class="p">)),</span> <span class="s">"loopcond"</span><span class="p">);</span>
+</pre></div>
+</div>
+<p>Finally, we evaluate the exit value of the loop, to determine whether
+the loop should exit. This mirrors the condition evaluation for the
+if/then/else statement.</p>
+<div class="highlight-c++"><div class="highlight"><pre><span class="c1">// Create the "after loop" block and insert it.</span>
+<span class="n">BasicBlock</span> <span class="o">*</span><span class="n">LoopEndBB</span> <span class="o">=</span> <span class="n">Builder</span><span class="p">.</span><span class="n">GetInsertBlock</span><span class="p">();</span>
+<span class="n">BasicBlock</span> <span class="o">*</span><span class="n">AfterBB</span> <span class="o">=</span>
+ <span class="n">BasicBlock</span><span class="o">::</span><span class="n">Create</span><span class="p">(</span><span class="n">getGlobalContext</span><span class="p">(),</span> <span class="s">"afterloop"</span><span class="p">,</span> <span class="n">TheFunction</span><span class="p">);</span>
+
+<span class="c1">// Insert the conditional branch into the end of LoopEndBB.</span>
+<span class="n">Builder</span><span class="p">.</span><span class="n">CreateCondBr</span><span class="p">(</span><span class="n">EndCond</span><span class="p">,</span> <span class="n">LoopBB</span><span class="p">,</span> <span class="n">AfterBB</span><span class="p">);</span>
+
+<span class="c1">// Any new code will be inserted in AfterBB.</span>
+<span class="n">Builder</span><span class="p">.</span><span class="n">SetInsertPoint</span><span class="p">(</span><span class="n">AfterBB</span><span class="p">);</span>
+</pre></div>
+</div>
+<p>With the code for the body of the loop complete, we just need to finish
+up the control flow for it. This code remembers the end block (for the
+phi node), then creates the block for the loop exit (“afterloop”). Based
+on the value of the exit condition, it creates a conditional branch that
+chooses between executing the loop again and exiting the loop. Any
+future code is emitted in the “afterloop” block, so it sets the
+insertion position to it.</p>
+<div class="highlight-c++"><div class="highlight"><pre> <span class="c1">// Add a new entry to the PHI node for the backedge.</span>
+ <span class="n">Variable</span><span class="o">-></span><span class="n">addIncoming</span><span class="p">(</span><span class="n">NextVar</span><span class="p">,</span> <span class="n">LoopEndBB</span><span class="p">);</span>
+
+ <span class="c1">// Restore the unshadowed variable.</span>
+ <span class="k">if</span> <span class="p">(</span><span class="n">OldVal</span><span class="p">)</span>
+ <span class="n">NamedValues</span><span class="p">[</span><span class="n">VarName</span><span class="p">]</span> <span class="o">=</span> <span class="n">OldVal</span><span class="p">;</span>
+ <span class="k">else</span>
+ <span class="n">NamedValues</span><span class="p">.</span><span class="n">erase</span><span class="p">(</span><span class="n">VarName</span><span class="p">);</span>
+
+ <span class="c1">// for expr always returns 0.0.</span>
+ <span class="k">return</span> <span class="n">Constant</span><span class="o">::</span><span class="n">getNullValue</span><span class="p">(</span><span class="n">Type</span><span class="o">::</span><span class="n">getDoubleTy</span><span class="p">(</span><span class="n">getGlobalContext</span><span class="p">()));</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+<p>The final code handles various cleanups: now that we have the “NextVar”
+value, we can add the incoming value to the loop PHI node. After that,
+we remove the loop variable from the symbol table, so that it isn’t in
+scope after the for loop. Finally, code generation of the for loop
+always returns 0.0, so that is what we return from
+<tt class="docutils literal"><span class="pre">ForExprAST::codegen()</span></tt>.</p>
+<p>With this, we conclude the “adding control flow to Kaleidoscope” chapter
+of the tutorial. In this chapter we added two control flow constructs,
+and used them to motivate a couple of aspects of the LLVM IR that are
+important for front-end implementors to know. In the next chapter of our
+saga, we will get a bit crazier and add <a class="reference external" href="LangImpl6.html">user-defined
+operators</a> to our poor innocent language.</p>
+</div>
+</div>
+<div class="section" id="full-code-listing">
+<h2><a class="toc-backref" href="#id14">5.4. Full Code Listing</a><a class="headerlink" href="#full-code-listing" title="Permalink to this headline">¶</a></h2>
+<p>Here is the complete code listing for our running example, enhanced with
+the if/then/else and for expressions.. To build this example, use:</p>
+<div class="highlight-bash"><div class="highlight"><pre><span class="c"># Compile</span>
+clang++ -g toy.cpp <span class="sb">`</span>llvm-config --cxxflags --ldflags --system-libs --libs core mcjit native<span class="sb">`</span> -O3 -o toy
+<span class="c"># Run</span>
+./toy
+</pre></div>
+</div>
+<p>Here is the code:</p>
+<div class="highlight-c++"><div class="highlight"><pre><span class="cp">#include "llvm/ADT/STLExtras.h"</span>
+<span class="cp">#include "llvm/Analysis/Passes.h"</span>
+<span class="cp">#include "llvm/IR/IRBuilder.h"</span>
+<span class="cp">#include "llvm/IR/LLVMContext.h"</span>
+<span class="cp">#include "llvm/IR/LegacyPassManager.h"</span>
+<span class="cp">#include "llvm/IR/Module.h"</span>
+<span class="cp">#include "llvm/IR/Verifier.h"</span>
+<span class="cp">#include "llvm/Support/TargetSelect.h"</span>
+<span class="cp">#include "llvm/Transforms/Scalar.h"</span>
+<span class="cp">#include <cctype></span>
+<span class="cp">#include <cstdio></span>
+<span class="cp">#include <map></span>
+<span class="cp">#include <string></span>
+<span class="cp">#include <vector></span>
+<span class="cp">#include "../include/KaleidoscopeJIT.h"</span>
+
+<span class="k">using</span> <span class="k">namespace</span> <span class="n">llvm</span><span class="p">;</span>
+<span class="k">using</span> <span class="k">namespace</span> <span class="n">llvm</span><span class="o">::</span><span class="n">orc</span><span class="p">;</span>
+
+<span class="c1">//===----------------------------------------------------------------------===//</span>
+<span class="c1">// Lexer</span>
+<span class="c1">//===----------------------------------------------------------------------===//</span>
+
+<span class="c1">// The lexer returns tokens [0-255] if it is an unknown character, otherwise one</span>
+<span class="c1">// of these for known things.</span>
+<span class="k">enum</span> <span class="n">Token</span> <span class="p">{</span>
+ <span class="n">tok_eof</span> <span class="o">=</span> <span class="o">-</span><span class="mi">1</span><span class="p">,</span>
+
+ <span class="c1">// commands</span>
+ <span class="n">tok_def</span> <span class="o">=</span> <span class="o">-</span><span class="mi">2</span><span class="p">,</span>
+ <span class="n">tok_extern</span> <span class="o">=</span> <span class="o">-</span><span class="mi">3</span><span class="p">,</span>
+
+ <span class="c1">// primary</span>
+ <span class="n">tok_identifier</span> <span class="o">=</span> <span class="o">-</span><span class="mi">4</span><span class="p">,</span>
+ <span class="n">tok_number</span> <span class="o">=</span> <span class="o">-</span><span class="mi">5</span><span class="p">,</span>
+
+ <span class="c1">// control</span>
+ <span class="n">tok_if</span> <span class="o">=</span> <span class="o">-</span><span class="mi">6</span><span class="p">,</span>
+ <span class="n">tok_then</span> <span class="o">=</span> <span class="o">-</span><span class="mi">7</span><span class="p">,</span>
+ <span class="n">tok_else</span> <span class="o">=</span> <span class="o">-</span><span class="mi">8</span><span class="p">,</span>
+ <span class="n">tok_for</span> <span class="o">=</span> <span class="o">-</span><span class="mi">9</span><span class="p">,</span>
+ <span class="n">tok_in</span> <span class="o">=</span> <span class="o">-</span><span class="mi">10</span>
+<span class="p">};</span>
+
+<span class="k">static</span> <span class="n">std</span><span class="o">::</span><span class="n">string</span> <span class="n">IdentifierStr</span><span class="p">;</span> <span class="c1">// Filled in if tok_identifier</span>
+<span class="k">static</span> <span class="kt">double</span> <span class="n">NumVal</span><span class="p">;</span> <span class="c1">// Filled in if tok_number</span>
+
+<span class="c1">/// gettok - Return the next token from standard input.</span>
+<span class="k">static</span> <span class="kt">int</span> <span class="nf">gettok</span><span class="p">()</span> <span class="p">{</span>
+ <span class="k">static</span> <span class="kt">int</span> <span class="n">LastChar</span> <span class="o">=</span> <span class="sc">' '</span><span class="p">;</span>
+
+ <span class="c1">// Skip any whitespace.</span>
+ <span class="k">while</span> <span class="p">(</span><span class="n">isspace</span><span class="p">(</span><span class="n">LastChar</span><span class="p">))</span>
+ <span class="n">LastChar</span> <span class="o">=</span> <span class="n">getchar</span><span class="p">();</span>
+
+ <span class="k">if</span> <span class="p">(</span><span class="n">isalpha</span><span class="p">(</span><span class="n">LastChar</span><span class="p">))</span> <span class="p">{</span> <span class="c1">// identifier: [a-zA-Z][a-zA-Z0-9]*</span>
+ <span class="n">IdentifierStr</span> <span class="o">=</span> <span class="n">LastChar</span><span class="p">;</span>
+ <span class="k">while</span> <span class="p">(</span><span class="n">isalnum</span><span class="p">((</span><span class="n">LastChar</span> <span class="o">=</span> <span class="n">getchar</span><span class="p">())))</span>
+ <span class="n">IdentifierStr</span> <span class="o">+=</span> <span class="n">LastChar</span><span class="p">;</span>
+
+ <span class="k">if</span> <span class="p">(</span><span class="n">IdentifierStr</span> <span class="o">==</span> <span class="s">"def"</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">tok_def</span><span class="p">;</span>
+ <span class="k">if</span> <span class="p">(</span><span class="n">IdentifierStr</span> <span class="o">==</span> <span class="s">"extern"</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">tok_extern</span><span class="p">;</span>
+ <span class="k">if</span> <span class="p">(</span><span class="n">IdentifierStr</span> <span class="o">==</span> <span class="s">"if"</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">tok_if</span><span class="p">;</span>
+ <span class="k">if</span> <span class="p">(</span><span class="n">IdentifierStr</span> <span class="o">==</span> <span class="s">"then"</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">tok_then</span><span class="p">;</span>
+ <span class="k">if</span> <span class="p">(</span><span class="n">IdentifierStr</span> <span class="o">==</span> <span class="s">"else"</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">tok_else</span><span class="p">;</span>
+ <span class="k">if</span> <span class="p">(</span><span class="n">IdentifierStr</span> <span class="o">==</span> <span class="s">"for"</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">tok_for</span><span class="p">;</span>
+ <span class="k">if</span> <span class="p">(</span><span class="n">IdentifierStr</span> <span class="o">==</span> <span class="s">"in"</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">tok_in</span><span class="p">;</span>
+ <span class="k">return</span> <span class="n">tok_identifier</span><span class="p">;</span>
+ <span class="p">}</span>
+
+ <span class="k">if</span> <span class="p">(</span><span class="n">isdigit</span><span class="p">(</span><span class="n">LastChar</span><span class="p">)</span> <span class="o">||</span> <span class="n">LastChar</span> <span class="o">==</span> <span class="sc">'.'</span><span class="p">)</span> <span class="p">{</span> <span class="c1">// Number: [0-9.]+</span>
+ <span class="n">std</span><span class="o">::</span><span class="n">string</span> <span class="n">NumStr</span><span class="p">;</span>
+ <span class="k">do</span> <span class="p">{</span>
+ <span class="n">NumStr</span> <span class="o">+=</span> <span class="n">LastChar</span><span class="p">;</span>
+ <span class="n">LastChar</span> <span class="o">=</span> <span class="n">getchar</span><span class="p">();</span>
+ <span class="p">}</span> <span class="k">while</span> <span class="p">(</span><span class="n">isdigit</span><span class="p">(</span><span class="n">LastChar</span><span class="p">)</span> <span class="o">||</span> <span class="n">LastChar</span> <span class="o">==</span> <span class="sc">'.'</span><span class="p">);</span>
+
+ <span class="n">NumVal</span> <span class="o">=</span> <span class="n">strtod</span><span class="p">(</span><span class="n">NumStr</span><span class="p">.</span><span class="n">c_str</span><span class="p">(),</span> <span class="n">nullptr</span><span class="p">);</span>
+ <span class="k">return</span> <span class="n">tok_number</span><span class="p">;</span>
+ <span class="p">}</span>
+
+ <span class="k">if</span> <span class="p">(</span><span class="n">LastChar</span> <span class="o">==</span> <span class="sc">'#'</span><span class="p">)</span> <span class="p">{</span>
+ <span class="c1">// Comment until end of line.</span>
+ <span class="k">do</span>
+ <span class="n">LastChar</span> <span class="o">=</span> <span class="n">getchar</span><span class="p">();</span>
+ <span class="k">while</span> <span class="p">(</span><span class="n">LastChar</span> <span class="o">!=</span> <span class="n">EOF</span> <span class="o">&&</span> <span class="n">LastChar</span> <span class="o">!=</span> <span class="sc">'\n'</span> <span class="o">&&</span> <span class="n">LastChar</span> <span class="o">!=</span> <span class="sc">'\r'</span><span class="p">);</span>
+
+ <span class="k">if</span> <span class="p">(</span><span class="n">LastChar</span> <span class="o">!=</span> <span class="n">EOF</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">gettok</span><span class="p">();</span>
+ <span class="p">}</span>
+
+ <span class="c1">// Check for end of file. Don't eat the EOF.</span>
+ <span class="k">if</span> <span class="p">(</span><span class="n">LastChar</span> <span class="o">==</span> <span class="n">EOF</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">tok_eof</span><span class="p">;</span>
+
+ <span class="c1">// Otherwise, just return the character as its ascii value.</span>
+ <span class="kt">int</span> <span class="n">ThisChar</span> <span class="o">=</span> <span class="n">LastChar</span><span class="p">;</span>
+ <span class="n">LastChar</span> <span class="o">=</span> <span class="n">getchar</span><span class="p">();</span>
+ <span class="k">return</span> <span class="n">ThisChar</span><span class="p">;</span>
+<span class="p">}</span>
+
+<span class="c1">//===----------------------------------------------------------------------===//</span>
+<span class="c1">// Abstract Syntax Tree (aka Parse Tree)</span>
+<span class="c1">//===----------------------------------------------------------------------===//</span>
+<span class="k">namespace</span> <span class="p">{</span>
+<span class="c1">/// ExprAST - Base class for all expression nodes.</span>
+<span class="k">class</span> <span class="nc">ExprAST</span> <span class="p">{</span>
+<span class="nl">public:</span>
+ <span class="k">virtual</span> <span class="o">~</span><span class="n">ExprAST</span><span class="p">()</span> <span class="p">{}</span>
+ <span class="k">virtual</span> <span class="n">Value</span> <span class="o">*</span><span class="n">codegen</span><span class="p">()</span> <span class="o">=</span> <span class="mi">0</span><span class="p">;</span>
+<span class="p">};</span>
+
+<span class="c1">/// NumberExprAST - Expression class for numeric literals like "1.0".</span>
+<span class="k">class</span> <span class="nc">NumberExprAST</span> <span class="o">:</span> <span class="k">public</span> <span class="n">ExprAST</span> <span class="p">{</span>
+ <span class="kt">double</span> <span class="n">Val</span><span class="p">;</span>
+
+<span class="nl">public:</span>
+ <span class="n">NumberExprAST</span><span class="p">(</span><span class="kt">double</span> <span class="n">Val</span><span class="p">)</span> <span class="o">:</span> <span class="n">Val</span><span class="p">(</span><span class="n">Val</span><span class="p">)</span> <span class="p">{}</span>
+ <span class="n">Value</span> <span class="o">*</span><span class="n">codegen</span><span class="p">()</span> <span class="n">override</span><span class="p">;</span>
+<span class="p">};</span>
+
+<span class="c1">/// VariableExprAST - Expression class for referencing a variable, like "a".</span>
+<span class="k">class</span> <span class="nc">VariableExprAST</span> <span class="o">:</span> <span class="k">public</span> <span class="n">ExprAST</span> <span class="p">{</span>
+ <span class="n">std</span><span class="o">::</span><span class="n">string</span> <span class="n">Name</span><span class="p">;</span>
+
+<span class="nl">public:</span>
+ <span class="n">VariableExprAST</span><span class="p">(</span><span class="k">const</span> <span class="n">std</span><span class="o">::</span><span class="n">string</span> <span class="o">&</span><span class="n">Name</span><span class="p">)</span> <span class="o">:</span> <span class="n">Name</span><span class="p">(</span><span class="n">Name</span><span class="p">)</span> <span class="p">{}</span>
+ <span class="n">Value</span> <span class="o">*</span><span class="n">codegen</span><span class="p">()</span> <span class="n">override</span><span class="p">;</span>
+<span class="p">};</span>
+
+<span class="c1">/// BinaryExprAST - Expression class for a binary operator.</span>
+<span class="k">class</span> <span class="nc">BinaryExprAST</span> <span class="o">:</span> <span class="k">public</span> <span class="n">ExprAST</span> <span class="p">{</span>
+ <span class="kt">char</span> <span class="n">Op</span><span class="p">;</span>
+ <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">ExprAST</span><span class="o">></span> <span class="n">LHS</span><span class="p">,</span> <span class="n">RHS</span><span class="p">;</span>
+
+<span class="nl">public:</span>
+ <span class="n">BinaryExprAST</span><span class="p">(</span><span class="kt">char</span> <span class="n">Op</span><span class="p">,</span> <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">ExprAST</span><span class="o">></span> <span class="n">LHS</span><span class="p">,</span>
+ <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">ExprAST</span><span class="o">></span> <span class="n">RHS</span><span class="p">)</span>
+ <span class="o">:</span> <span class="n">Op</span><span class="p">(</span><span class="n">Op</span><span class="p">),</span> <span class="n">LHS</span><span class="p">(</span><span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">LHS</span><span class="p">)),</span> <span class="n">RHS</span><span class="p">(</span><span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">RHS</span><span class="p">))</span> <span class="p">{}</span>
+ <span class="n">Value</span> <span class="o">*</span><span class="n">codegen</span><span class="p">()</span> <span class="n">override</span><span class="p">;</span>
+<span class="p">};</span>
+
+<span class="c1">/// CallExprAST - Expression class for function calls.</span>
+<span class="k">class</span> <span class="nc">CallExprAST</span> <span class="o">:</span> <span class="k">public</span> <span class="n">ExprAST</span> <span class="p">{</span>
+ <span class="n">std</span><span class="o">::</span><span class="n">string</span> <span class="n">Callee</span><span class="p">;</span>
+ <span class="n">std</span><span class="o">::</span><span class="n">vector</span><span class="o"><</span><span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">ExprAST</span><span class="o">>></span> <span class="n">Args</span><span class="p">;</span>
+
+<span class="nl">public:</span>
+ <span class="n">CallExprAST</span><span class="p">(</span><span class="k">const</span> <span class="n">std</span><span class="o">::</span><span class="n">string</span> <span class="o">&</span><span class="n">Callee</span><span class="p">,</span>
+ <span class="n">std</span><span class="o">::</span><span class="n">vector</span><span class="o"><</span><span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">ExprAST</span><span class="o">>></span> <span class="n">Args</span><span class="p">)</span>
+ <span class="o">:</span> <span class="n">Callee</span><span class="p">(</span><span class="n">Callee</span><span class="p">),</span> <span class="n">Args</span><span class="p">(</span><span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">Args</span><span class="p">))</span> <span class="p">{}</span>
+ <span class="n">Value</span> <span class="o">*</span><span class="n">codegen</span><span class="p">()</span> <span class="n">override</span><span class="p">;</span>
+<span class="p">};</span>
+
+<span class="c1">/// IfExprAST - Expression class for if/then/else.</span>
+<span class="k">class</span> <span class="nc">IfExprAST</span> <span class="o">:</span> <span class="k">public</span> <span class="n">ExprAST</span> <span class="p">{</span>
+ <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">ExprAST</span><span class="o">></span> <span class="n">Cond</span><span class="p">,</span> <span class="n">Then</span><span class="p">,</span> <span class="n">Else</span><span class="p">;</span>
+
+<span class="nl">public:</span>
+ <span class="n">IfExprAST</span><span class="p">(</span><span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">ExprAST</span><span class="o">></span> <span class="n">Cond</span><span class="p">,</span> <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">ExprAST</span><span class="o">></span> <span class="n">Then</span><span class="p">,</span>
+ <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">ExprAST</span><span class="o">></span> <span class="n">Else</span><span class="p">)</span>
+ <span class="o">:</span> <span class="n">Cond</span><span class="p">(</span><span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">Cond</span><span class="p">)),</span> <span class="n">Then</span><span class="p">(</span><span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">Then</span><span class="p">)),</span> <span class="n">Else</span><span class="p">(</span><span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">Else</span><span class="p">))</span> <span class="p">{}</span>
+ <span class="n">Value</span> <span class="o">*</span><span class="n">codegen</span><span class="p">()</span> <span class="n">override</span><span class="p">;</span>
+<span class="p">};</span>
+
+<span class="c1">/// ForExprAST - Expression class for for/in.</span>
+<span class="k">class</span> <span class="nc">ForExprAST</span> <span class="o">:</span> <span class="k">public</span> <span class="n">ExprAST</span> <span class="p">{</span>
+ <span class="n">std</span><span class="o">::</span><span class="n">string</span> <span class="n">VarName</span><span class="p">;</span>
+ <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">ExprAST</span><span class="o">></span> <span class="n">Start</span><span class="p">,</span> <span class="n">End</span><span class="p">,</span> <span class="n">Step</span><span class="p">,</span> <span class="n">Body</span><span class="p">;</span>
+
+<span class="nl">public:</span>
+ <span class="n">ForExprAST</span><span class="p">(</span><span class="k">const</span> <span class="n">std</span><span class="o">::</span><span class="n">string</span> <span class="o">&</span><span class="n">VarName</span><span class="p">,</span> <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">ExprAST</span><span class="o">></span> <span class="n">Start</span><span class="p">,</span>
+ <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">ExprAST</span><span class="o">></span> <span class="n">End</span><span class="p">,</span> <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">ExprAST</span><span class="o">></span> <span class="n">Step</span><span class="p">,</span>
+ <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">ExprAST</span><span class="o">></span> <span class="n">Body</span><span class="p">)</span>
+ <span class="o">:</span> <span class="n">VarName</span><span class="p">(</span><span class="n">VarName</span><span class="p">),</span> <span class="n">Start</span><span class="p">(</span><span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">Start</span><span class="p">)),</span> <span class="n">End</span><span class="p">(</span><span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">End</span><span class="p">)),</span>
+ <span class="n">Step</span><span class="p">(</span><span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">Step</span><span class="p">)),</span> <span class="n">Body</span><span class="p">(</span><span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">Body</span><span class="p">))</span> <span class="p">{}</span>
+ <span class="n">Value</span> <span class="o">*</span><span class="n">codegen</span><span class="p">()</span> <span class="n">override</span><span class="p">;</span>
+<span class="p">};</span>
+
+<span class="c1">/// PrototypeAST - This class represents the "prototype" for a function,</span>
+<span class="c1">/// which captures its name, and its argument names (thus implicitly the number</span>
+<span class="c1">/// of arguments the function takes).</span>
+<span class="k">class</span> <span class="nc">PrototypeAST</span> <span class="p">{</span>
+ <span class="n">std</span><span class="o">::</span><span class="n">string</span> <span class="n">Name</span><span class="p">;</span>
+ <span class="n">std</span><span class="o">::</span><span class="n">vector</span><span class="o"><</span><span class="n">std</span><span class="o">::</span><span class="n">string</span><span class="o">></span> <span class="n">Args</span><span class="p">;</span>
+
+<span class="nl">public:</span>
+ <span class="n">PrototypeAST</span><span class="p">(</span><span class="k">const</span> <span class="n">std</span><span class="o">::</span><span class="n">string</span> <span class="o">&</span><span class="n">Name</span><span class="p">,</span> <span class="n">std</span><span class="o">::</span><span class="n">vector</span><span class="o"><</span><span class="n">std</span><span class="o">::</span><span class="n">string</span><span class="o">></span> <span class="n">Args</span><span class="p">)</span>
+ <span class="o">:</span> <span class="n">Name</span><span class="p">(</span><span class="n">Name</span><span class="p">),</span> <span class="n">Args</span><span class="p">(</span><span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">Args</span><span class="p">))</span> <span class="p">{}</span>
+ <span class="n">Function</span> <span class="o">*</span><span class="n">codegen</span><span class="p">();</span>
+ <span class="k">const</span> <span class="n">std</span><span class="o">::</span><span class="n">string</span> <span class="o">&</span><span class="n">getName</span><span class="p">()</span> <span class="k">const</span> <span class="p">{</span> <span class="k">return</span> <span class="n">Name</span><span class="p">;</span> <span class="p">}</span>
+<span class="p">};</span>
+
+<span class="c1">/// FunctionAST - This class represents a function definition itself.</span>
+<span class="k">class</span> <span class="nc">FunctionAST</span> <span class="p">{</span>
+ <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">PrototypeAST</span><span class="o">></span> <span class="n">Proto</span><span class="p">;</span>
+ <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">ExprAST</span><span class="o">></span> <span class="n">Body</span><span class="p">;</span>
+
+<span class="nl">public:</span>
+ <span class="n">FunctionAST</span><span class="p">(</span><span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">PrototypeAST</span><span class="o">></span> <span class="n">Proto</span><span class="p">,</span>
+ <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">ExprAST</span><span class="o">></span> <span class="n">Body</span><span class="p">)</span>
+ <span class="o">:</span> <span class="n">Proto</span><span class="p">(</span><span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">Proto</span><span class="p">)),</span> <span class="n">Body</span><span class="p">(</span><span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">Body</span><span class="p">))</span> <span class="p">{}</span>
+ <span class="n">Function</span> <span class="o">*</span><span class="n">codegen</span><span class="p">();</span>
+<span class="p">};</span>
+<span class="p">}</span> <span class="c1">// end anonymous namespace</span>
+
+<span class="c1">//===----------------------------------------------------------------------===//</span>
+<span class="c1">// Parser</span>
+<span class="c1">//===----------------------------------------------------------------------===//</span>
+
+<span class="c1">/// CurTok/getNextToken - Provide a simple token buffer. CurTok is the current</span>
+<span class="c1">/// token the parser is looking at. getNextToken reads another token from the</span>
+<span class="c1">/// lexer and updates CurTok with its results.</span>
+<span class="k">static</span> <span class="kt">int</span> <span class="n">CurTok</span><span class="p">;</span>
+<span class="k">static</span> <span class="kt">int</span> <span class="nf">getNextToken</span><span class="p">()</span> <span class="p">{</span> <span class="k">return</span> <span class="n">CurTok</span> <span class="o">=</span> <span class="n">gettok</span><span class="p">();</span> <span class="p">}</span>
+
+<span class="c1">/// BinopPrecedence - This holds the precedence for each binary operator that is</span>
+<span class="c1">/// defined.</span>
+<span class="k">static</span> <span class="n">std</span><span class="o">::</span><span class="n">map</span><span class="o"><</span><span class="kt">char</span><span class="p">,</span> <span class="kt">int</span><span class="o">></span> <span class="n">BinopPrecedence</span><span class="p">;</span>
+
+<span class="c1">/// GetTokPrecedence - Get the precedence of the pending binary operator token.</span>
+<span class="k">static</span> <span class="kt">int</span> <span class="nf">GetTokPrecedence</span><span class="p">()</span> <span class="p">{</span>
+ <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="n">isascii</span><span class="p">(</span><span class="n">CurTok</span><span class="p">))</span>
+ <span class="k">return</span> <span class="o">-</span><span class="mi">1</span><span class="p">;</span>
+
+ <span class="c1">// Make sure it's a declared binop.</span>
+ <span class="kt">int</span> <span class="n">TokPrec</span> <span class="o">=</span> <span class="n">BinopPrecedence</span><span class="p">[</span><span class="n">CurTok</span><span class="p">];</span>
+ <span class="k">if</span> <span class="p">(</span><span class="n">TokPrec</span> <span class="o"><=</span> <span class="mi">0</span><span class="p">)</span>
+ <span class="k">return</span> <span class="o">-</span><span class="mi">1</span><span class="p">;</span>
+ <span class="k">return</span> <span class="n">TokPrec</span><span class="p">;</span>
+<span class="p">}</span>
+
+<span class="c1">/// Error* - These are little helper functions for error handling.</span>
+<span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">ExprAST</span><span class="o">></span> <span class="n">Error</span><span class="p">(</span><span class="k">const</span> <span class="kt">char</span> <span class="o">*</span><span class="n">Str</span><span class="p">)</span> <span class="p">{</span>
+ <span class="n">fprintf</span><span class="p">(</span><span class="n">stderr</span><span class="p">,</span> <span class="s">"Error: %s</span><span class="se">\n</span><span class="s">"</span><span class="p">,</span> <span class="n">Str</span><span class="p">);</span>
+ <span class="k">return</span> <span class="n">nullptr</span><span class="p">;</span>
+<span class="p">}</span>
+
+<span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">PrototypeAST</span><span class="o">></span> <span class="n">ErrorP</span><span class="p">(</span><span class="k">const</span> <span class="kt">char</span> <span class="o">*</span><span class="n">Str</span><span class="p">)</span> <span class="p">{</span>
+ <span class="n">Error</span><span class="p">(</span><span class="n">Str</span><span class="p">);</span>
+ <span class="k">return</span> <span class="n">nullptr</span><span class="p">;</span>
+<span class="p">}</span>
+
+<span class="k">static</span> <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">ExprAST</span><span class="o">></span> <span class="n">ParseExpression</span><span class="p">();</span>
+
+<span class="c1">/// numberexpr ::= number</span>
+<span class="k">static</span> <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">ExprAST</span><span class="o">></span> <span class="n">ParseNumberExpr</span><span class="p">()</span> <span class="p">{</span>
+ <span class="k">auto</span> <span class="n">Result</span> <span class="o">=</span> <span class="n">llvm</span><span class="o">::</span><span class="n">make_unique</span><span class="o"><</span><span class="n">NumberExprAST</span><span class="o">></span><span class="p">(</span><span class="n">NumVal</span><span class="p">);</span>
+ <span class="n">getNextToken</span><span class="p">();</span> <span class="c1">// consume the number</span>
+ <span class="k">return</span> <span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">Result</span><span class="p">);</span>
+<span class="p">}</span>
+
+<span class="c1">/// parenexpr ::= '(' expression ')'</span>
+<span class="k">static</span> <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">ExprAST</span><span class="o">></span> <span class="n">ParseParenExpr</span><span class="p">()</span> <span class="p">{</span>
+ <span class="n">getNextToken</span><span class="p">();</span> <span class="c1">// eat (.</span>
+ <span class="k">auto</span> <span class="n">V</span> <span class="o">=</span> <span class="n">ParseExpression</span><span class="p">();</span>
+ <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="n">V</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">nullptr</span><span class="p">;</span>
+
+ <span class="k">if</span> <span class="p">(</span><span class="n">CurTok</span> <span class="o">!=</span> <span class="sc">')'</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">Error</span><span class="p">(</span><span class="s">"expected ')'"</span><span class="p">);</span>
+ <span class="n">getNextToken</span><span class="p">();</span> <span class="c1">// eat ).</span>
+ <span class="k">return</span> <span class="n">V</span><span class="p">;</span>
+<span class="p">}</span>
+
+<span class="c1">/// identifierexpr</span>
+<span class="c1">/// ::= identifier</span>
+<span class="c1">/// ::= identifier '(' expression* ')'</span>
+<span class="k">static</span> <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">ExprAST</span><span class="o">></span> <span class="n">ParseIdentifierExpr</span><span class="p">()</span> <span class="p">{</span>
+ <span class="n">std</span><span class="o">::</span><span class="n">string</span> <span class="n">IdName</span> <span class="o">=</span> <span class="n">IdentifierStr</span><span class="p">;</span>
+
+ <span class="n">getNextToken</span><span class="p">();</span> <span class="c1">// eat identifier.</span>
+
+ <span class="k">if</span> <span class="p">(</span><span class="n">CurTok</span> <span class="o">!=</span> <span class="sc">'('</span><span class="p">)</span> <span class="c1">// Simple variable ref.</span>
+ <span class="k">return</span> <span class="n">llvm</span><span class="o">::</span><span class="n">make_unique</span><span class="o"><</span><span class="n">VariableExprAST</span><span class="o">></span><span class="p">(</span><span class="n">IdName</span><span class="p">);</span>
+
+ <span class="c1">// Call.</span>
+ <span class="n">getNextToken</span><span class="p">();</span> <span class="c1">// eat (</span>
+ <span class="n">std</span><span class="o">::</span><span class="n">vector</span><span class="o"><</span><span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">ExprAST</span><span class="o">>></span> <span class="n">Args</span><span class="p">;</span>
+ <span class="k">if</span> <span class="p">(</span><span class="n">CurTok</span> <span class="o">!=</span> <span class="sc">')'</span><span class="p">)</span> <span class="p">{</span>
+ <span class="k">while</span> <span class="p">(</span><span class="mi">1</span><span class="p">)</span> <span class="p">{</span>
+ <span class="k">if</span> <span class="p">(</span><span class="k">auto</span> <span class="n">Arg</span> <span class="o">=</span> <span class="n">ParseExpression</span><span class="p">())</span>
+ <span class="n">Args</span><span class="p">.</span><span class="n">push_back</span><span class="p">(</span><span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">Arg</span><span class="p">));</span>
+ <span class="k">else</span>
+ <span class="k">return</span> <span class="n">nullptr</span><span class="p">;</span>
+
+ <span class="k">if</span> <span class="p">(</span><span class="n">CurTok</span> <span class="o">==</span> <span class="sc">')'</span><span class="p">)</span>
+ <span class="k">break</span><span class="p">;</span>
+
+ <span class="k">if</span> <span class="p">(</span><span class="n">CurTok</span> <span class="o">!=</span> <span class="sc">','</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">Error</span><span class="p">(</span><span class="s">"Expected ')' or ',' in argument list"</span><span class="p">);</span>
+ <span class="n">getNextToken</span><span class="p">();</span>
+ <span class="p">}</span>
+ <span class="p">}</span>
+
+ <span class="c1">// Eat the ')'.</span>
+ <span class="n">getNextToken</span><span class="p">();</span>
+
+ <span class="k">return</span> <span class="n">llvm</span><span class="o">::</span><span class="n">make_unique</span><span class="o"><</span><span class="n">CallExprAST</span><span class="o">></span><span class="p">(</span><span class="n">IdName</span><span class="p">,</span> <span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">Args</span><span class="p">));</span>
+<span class="p">}</span>
+
+<span class="c1">/// ifexpr ::= 'if' expression 'then' expression 'else' expression</span>
+<span class="k">static</span> <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">ExprAST</span><span class="o">></span> <span class="n">ParseIfExpr</span><span class="p">()</span> <span class="p">{</span>
+ <span class="n">getNextToken</span><span class="p">();</span> <span class="c1">// eat the if.</span>
+
+ <span class="c1">// condition.</span>
+ <span class="k">auto</span> <span class="n">Cond</span> <span class="o">=</span> <span class="n">ParseExpression</span><span class="p">();</span>
+ <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="n">Cond</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">nullptr</span><span class="p">;</span>
+
+ <span class="k">if</span> <span class="p">(</span><span class="n">CurTok</span> <span class="o">!=</span> <span class="n">tok_then</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">Error</span><span class="p">(</span><span class="s">"expected then"</span><span class="p">);</span>
+ <span class="n">getNextToken</span><span class="p">();</span> <span class="c1">// eat the then</span>
+
+ <span class="k">auto</span> <span class="n">Then</span> <span class="o">=</span> <span class="n">ParseExpression</span><span class="p">();</span>
+ <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="n">Then</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">nullptr</span><span class="p">;</span>
+
+ <span class="k">if</span> <span class="p">(</span><span class="n">CurTok</span> <span class="o">!=</span> <span class="n">tok_else</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">Error</span><span class="p">(</span><span class="s">"expected else"</span><span class="p">);</span>
+
+ <span class="n">getNextToken</span><span class="p">();</span>
+
+ <span class="k">auto</span> <span class="n">Else</span> <span class="o">=</span> <span class="n">ParseExpression</span><span class="p">();</span>
+ <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="n">Else</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">nullptr</span><span class="p">;</span>
+
+ <span class="k">return</span> <span class="n">llvm</span><span class="o">::</span><span class="n">make_unique</span><span class="o"><</span><span class="n">IfExprAST</span><span class="o">></span><span class="p">(</span><span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">Cond</span><span class="p">),</span> <span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">Then</span><span class="p">),</span>
+ <span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">Else</span><span class="p">));</span>
+<span class="p">}</span>
+
+<span class="c1">/// forexpr ::= 'for' identifier '=' expr ',' expr (',' expr)? 'in' expression</span>
+<span class="k">static</span> <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">ExprAST</span><span class="o">></span> <span class="n">ParseForExpr</span><span class="p">()</span> <span class="p">{</span>
+ <span class="n">getNextToken</span><span class="p">();</span> <span class="c1">// eat the for.</span>
+
+ <span class="k">if</span> <span class="p">(</span><span class="n">CurTok</span> <span class="o">!=</span> <span class="n">tok_identifier</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">Error</span><span class="p">(</span><span class="s">"expected identifier after for"</span><span class="p">);</span>
+
+ <span class="n">std</span><span class="o">::</span><span class="n">string</span> <span class="n">IdName</span> <span class="o">=</span> <span class="n">IdentifierStr</span><span class="p">;</span>
+ <span class="n">getNextToken</span><span class="p">();</span> <span class="c1">// eat identifier.</span>
+
+ <span class="k">if</span> <span class="p">(</span><span class="n">CurTok</span> <span class="o">!=</span> <span class="sc">'='</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">Error</span><span class="p">(</span><span class="s">"expected '=' after for"</span><span class="p">);</span>
+ <span class="n">getNextToken</span><span class="p">();</span> <span class="c1">// eat '='.</span>
+
+ <span class="k">auto</span> <span class="n">Start</span> <span class="o">=</span> <span class="n">ParseExpression</span><span class="p">();</span>
+ <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="n">Start</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">nullptr</span><span class="p">;</span>
+ <span class="k">if</span> <span class="p">(</span><span class="n">CurTok</span> <span class="o">!=</span> <span class="sc">','</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">Error</span><span class="p">(</span><span class="s">"expected ',' after for start value"</span><span class="p">);</span>
+ <span class="n">getNextToken</span><span class="p">();</span>
+
+ <span class="k">auto</span> <span class="n">End</span> <span class="o">=</span> <span class="n">ParseExpression</span><span class="p">();</span>
+ <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="n">End</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">nullptr</span><span class="p">;</span>
+
+ <span class="c1">// The step value is optional.</span>
+ <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">ExprAST</span><span class="o">></span> <span class="n">Step</span><span class="p">;</span>
+ <span class="k">if</span> <span class="p">(</span><span class="n">CurTok</span> <span class="o">==</span> <span class="sc">','</span><span class="p">)</span> <span class="p">{</span>
+ <span class="n">getNextToken</span><span class="p">();</span>
+ <span class="n">Step</span> <span class="o">=</span> <span class="n">ParseExpression</span><span class="p">();</span>
+ <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="n">Step</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">nullptr</span><span class="p">;</span>
+ <span class="p">}</span>
+
+ <span class="k">if</span> <span class="p">(</span><span class="n">CurTok</span> <span class="o">!=</span> <span class="n">tok_in</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">Error</span><span class="p">(</span><span class="s">"expected 'in' after for"</span><span class="p">);</span>
+ <span class="n">getNextToken</span><span class="p">();</span> <span class="c1">// eat 'in'.</span>
+
+ <span class="k">auto</span> <span class="n">Body</span> <span class="o">=</span> <span class="n">ParseExpression</span><span class="p">();</span>
+ <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="n">Body</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">nullptr</span><span class="p">;</span>
+
+ <span class="k">return</span> <span class="n">llvm</span><span class="o">::</span><span class="n">make_unique</span><span class="o"><</span><span class="n">ForExprAST</span><span class="o">></span><span class="p">(</span><span class="n">IdName</span><span class="p">,</span> <span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">Start</span><span class="p">),</span> <span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">End</span><span class="p">),</span>
+ <span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">Step</span><span class="p">),</span> <span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">Body</span><span class="p">));</span>
+<span class="p">}</span>
+
+<span class="c1">/// primary</span>
+<span class="c1">/// ::= identifierexpr</span>
+<span class="c1">/// ::= numberexpr</span>
+<span class="c1">/// ::= parenexpr</span>
+<span class="c1">/// ::= ifexpr</span>
+<span class="c1">/// ::= forexpr</span>
+<span class="k">static</span> <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">ExprAST</span><span class="o">></span> <span class="n">ParsePrimary</span><span class="p">()</span> <span class="p">{</span>
+ <span class="k">switch</span> <span class="p">(</span><span class="n">CurTok</span><span class="p">)</span> <span class="p">{</span>
+ <span class="nl">default:</span>
+ <span class="k">return</span> <span class="n">Error</span><span class="p">(</span><span class="s">"unknown token when expecting an expression"</span><span class="p">);</span>
+ <span class="k">case</span> <span class="n">tok_identifier</span>:
+ <span class="k">return</span> <span class="n">ParseIdentifierExpr</span><span class="p">();</span>
+ <span class="k">case</span> <span class="n">tok_number</span>:
+ <span class="k">return</span> <span class="n">ParseNumberExpr</span><span class="p">();</span>
+ <span class="k">case</span> <span class="sc">'('</span>:
+ <span class="k">return</span> <span class="n">ParseParenExpr</span><span class="p">();</span>
+ <span class="k">case</span> <span class="n">tok_if</span>:
+ <span class="k">return</span> <span class="n">ParseIfExpr</span><span class="p">();</span>
+ <span class="k">case</span> <span class="n">tok_for</span>:
+ <span class="k">return</span> <span class="n">ParseForExpr</span><span class="p">();</span>
+ <span class="p">}</span>
+<span class="p">}</span>
+
+<span class="c1">/// binoprhs</span>
+<span class="c1">/// ::= ('+' primary)*</span>
+<span class="k">static</span> <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">ExprAST</span><span class="o">></span> <span class="n">ParseBinOpRHS</span><span class="p">(</span><span class="kt">int</span> <span class="n">ExprPrec</span><span class="p">,</span>
+ <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">ExprAST</span><span class="o">></span> <span class="n">LHS</span><span class="p">)</span> <span class="p">{</span>
+ <span class="c1">// If this is a binop, find its precedence.</span>
+ <span class="k">while</span> <span class="p">(</span><span class="mi">1</span><span class="p">)</span> <span class="p">{</span>
+ <span class="kt">int</span> <span class="n">TokPrec</span> <span class="o">=</span> <span class="n">GetTokPrecedence</span><span class="p">();</span>
+
+ <span class="c1">// If this is a binop that binds at least as tightly as the current binop,</span>
+ <span class="c1">// consume it, otherwise we are done.</span>
+ <span class="k">if</span> <span class="p">(</span><span class="n">TokPrec</span> <span class="o"><</span> <span class="n">ExprPrec</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">LHS</span><span class="p">;</span>
+
+ <span class="c1">// Okay, we know this is a binop.</span>
+ <span class="kt">int</span> <span class="n">BinOp</span> <span class="o">=</span> <span class="n">CurTok</span><span class="p">;</span>
+ <span class="n">getNextToken</span><span class="p">();</span> <span class="c1">// eat binop</span>
+
+ <span class="c1">// Parse the primary expression after the binary operator.</span>
+ <span class="k">auto</span> <span class="n">RHS</span> <span class="o">=</span> <span class="n">ParsePrimary</span><span class="p">();</span>
+ <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="n">RHS</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">nullptr</span><span class="p">;</span>
+
+ <span class="c1">// If BinOp binds less tightly with RHS than the operator after RHS, let</span>
+ <span class="c1">// the pending operator take RHS as its LHS.</span>
+ <span class="kt">int</span> <span class="n">NextPrec</span> <span class="o">=</span> <span class="n">GetTokPrecedence</span><span class="p">();</span>
+ <span class="k">if</span> <span class="p">(</span><span class="n">TokPrec</span> <span class="o"><</span> <span class="n">NextPrec</span><span class="p">)</span> <span class="p">{</span>
+ <span class="n">RHS</span> <span class="o">=</span> <span class="n">ParseBinOpRHS</span><span class="p">(</span><span class="n">TokPrec</span> <span class="o">+</span> <span class="mi">1</span><span class="p">,</span> <span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">RHS</span><span class="p">));</span>
+ <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="n">RHS</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">nullptr</span><span class="p">;</span>
+ <span class="p">}</span>
+
+ <span class="c1">// Merge LHS/RHS.</span>
+ <span class="n">LHS</span> <span class="o">=</span>
+ <span class="n">llvm</span><span class="o">::</span><span class="n">make_unique</span><span class="o"><</span><span class="n">BinaryExprAST</span><span class="o">></span><span class="p">(</span><span class="n">BinOp</span><span class="p">,</span> <span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">LHS</span><span class="p">),</span> <span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">RHS</span><span class="p">));</span>
+ <span class="p">}</span>
+<span class="p">}</span>
+
+<span class="c1">/// expression</span>
+<span class="c1">/// ::= primary binoprhs</span>
+<span class="c1">///</span>
+<span class="k">static</span> <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">ExprAST</span><span class="o">></span> <span class="n">ParseExpression</span><span class="p">()</span> <span class="p">{</span>
+ <span class="k">auto</span> <span class="n">LHS</span> <span class="o">=</span> <span class="n">ParsePrimary</span><span class="p">();</span>
+ <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="n">LHS</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">nullptr</span><span class="p">;</span>
+
+ <span class="k">return</span> <span class="nf">ParseBinOpRHS</span><span class="p">(</span><span class="mi">0</span><span class="p">,</span> <span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">LHS</span><span class="p">));</span>
+<span class="p">}</span>
+
+<span class="c1">/// prototype</span>
+<span class="c1">/// ::= id '(' id* ')'</span>
+<span class="k">static</span> <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">PrototypeAST</span><span class="o">></span> <span class="n">ParsePrototype</span><span class="p">()</span> <span class="p">{</span>
+ <span class="k">if</span> <span class="p">(</span><span class="n">CurTok</span> <span class="o">!=</span> <span class="n">tok_identifier</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">ErrorP</span><span class="p">(</span><span class="s">"Expected function name in prototype"</span><span class="p">);</span>
+
+ <span class="n">std</span><span class="o">::</span><span class="n">string</span> <span class="n">FnName</span> <span class="o">=</span> <span class="n">IdentifierStr</span><span class="p">;</span>
+ <span class="n">getNextToken</span><span class="p">();</span>
+
+ <span class="k">if</span> <span class="p">(</span><span class="n">CurTok</span> <span class="o">!=</span> <span class="sc">'('</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">ErrorP</span><span class="p">(</span><span class="s">"Expected '(' in prototype"</span><span class="p">);</span>
+
+ <span class="n">std</span><span class="o">::</span><span class="n">vector</span><span class="o"><</span><span class="n">std</span><span class="o">::</span><span class="n">string</span><span class="o">></span> <span class="n">ArgNames</span><span class="p">;</span>
+ <span class="k">while</span> <span class="p">(</span><span class="n">getNextToken</span><span class="p">()</span> <span class="o">==</span> <span class="n">tok_identifier</span><span class="p">)</span>
+ <span class="n">ArgNames</span><span class="p">.</span><span class="n">push_back</span><span class="p">(</span><span class="n">IdentifierStr</span><span class="p">);</span>
+ <span class="k">if</span> <span class="p">(</span><span class="n">CurTok</span> <span class="o">!=</span> <span class="sc">')'</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">ErrorP</span><span class="p">(</span><span class="s">"Expected ')' in prototype"</span><span class="p">);</span>
+
+ <span class="c1">// success.</span>
+ <span class="n">getNextToken</span><span class="p">();</span> <span class="c1">// eat ')'.</span>
+
+ <span class="k">return</span> <span class="n">llvm</span><span class="o">::</span><span class="n">make_unique</span><span class="o"><</span><span class="n">PrototypeAST</span><span class="o">></span><span class="p">(</span><span class="n">FnName</span><span class="p">,</span> <span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">ArgNames</span><span class="p">));</span>
+<span class="p">}</span>
+
+<span class="c1">/// definition ::= 'def' prototype expression</span>
+<span class="k">static</span> <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">FunctionAST</span><span class="o">></span> <span class="n">ParseDefinition</span><span class="p">()</span> <span class="p">{</span>
+ <span class="n">getNextToken</span><span class="p">();</span> <span class="c1">// eat def.</span>
+ <span class="k">auto</span> <span class="n">Proto</span> <span class="o">=</span> <span class="n">ParsePrototype</span><span class="p">();</span>
+ <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="n">Proto</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">nullptr</span><span class="p">;</span>
+
+ <span class="k">if</span> <span class="p">(</span><span class="k">auto</span> <span class="n">E</span> <span class="o">=</span> <span class="n">ParseExpression</span><span class="p">())</span>
+ <span class="k">return</span> <span class="n">llvm</span><span class="o">::</span><span class="n">make_unique</span><span class="o"><</span><span class="n">FunctionAST</span><span class="o">></span><span class="p">(</span><span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">Proto</span><span class="p">),</span> <span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">E</span><span class="p">));</span>
+ <span class="k">return</span> <span class="n">nullptr</span><span class="p">;</span>
+<span class="p">}</span>
+
+<span class="c1">/// toplevelexpr ::= expression</span>
+<span class="k">static</span> <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">FunctionAST</span><span class="o">></span> <span class="n">ParseTopLevelExpr</span><span class="p">()</span> <span class="p">{</span>
+ <span class="k">if</span> <span class="p">(</span><span class="k">auto</span> <span class="n">E</span> <span class="o">=</span> <span class="n">ParseExpression</span><span class="p">())</span> <span class="p">{</span>
+ <span class="c1">// Make an anonymous proto.</span>
+ <span class="k">auto</span> <span class="n">Proto</span> <span class="o">=</span> <span class="n">llvm</span><span class="o">::</span><span class="n">make_unique</span><span class="o"><</span><span class="n">PrototypeAST</span><span class="o">></span><span class="p">(</span><span class="s">"__anon_expr"</span><span class="p">,</span>
+ <span class="n">std</span><span class="o">::</span><span class="n">vector</span><span class="o"><</span><span class="n">std</span><span class="o">::</span><span class="n">string</span><span class="o">></span><span class="p">());</span>
+ <span class="k">return</span> <span class="n">llvm</span><span class="o">::</span><span class="n">make_unique</span><span class="o"><</span><span class="n">FunctionAST</span><span class="o">></span><span class="p">(</span><span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">Proto</span><span class="p">),</span> <span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">E</span><span class="p">));</span>
+ <span class="p">}</span>
+ <span class="k">return</span> <span class="n">nullptr</span><span class="p">;</span>
+<span class="p">}</span>
+
+<span class="c1">/// external ::= 'extern' prototype</span>
+<span class="k">static</span> <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">PrototypeAST</span><span class="o">></span> <span class="n">ParseExtern</span><span class="p">()</span> <span class="p">{</span>
+ <span class="n">getNextToken</span><span class="p">();</span> <span class="c1">// eat extern.</span>
+ <span class="k">return</span> <span class="nf">ParsePrototype</span><span class="p">();</span>
+<span class="p">}</span>
+
+<span class="c1">//===----------------------------------------------------------------------===//</span>
+<span class="c1">// Code Generation</span>
+<span class="c1">//===----------------------------------------------------------------------===//</span>
+
+<span class="k">static</span> <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">Module</span><span class="o">></span> <span class="n">TheModule</span><span class="p">;</span>
+<span class="k">static</span> <span class="n">IRBuilder</span><span class="o"><></span> <span class="n">Builder</span><span class="p">(</span><span class="n">getGlobalContext</span><span class="p">());</span>
+<span class="k">static</span> <span class="n">std</span><span class="o">::</span><span class="n">map</span><span class="o"><</span><span class="n">std</span><span class="o">::</span><span class="n">string</span><span class="p">,</span> <span class="n">Value</span> <span class="o">*></span> <span class="n">NamedValues</span><span class="p">;</span>
+<span class="k">static</span> <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">legacy</span><span class="o">::</span><span class="n">FunctionPassManager</span><span class="o">></span> <span class="n">TheFPM</span><span class="p">;</span>
+<span class="k">static</span> <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">KaleidoscopeJIT</span><span class="o">></span> <span class="n">TheJIT</span><span class="p">;</span>
+<span class="k">static</span> <span class="n">std</span><span class="o">::</span><span class="n">map</span><span class="o"><</span><span class="n">std</span><span class="o">::</span><span class="n">string</span><span class="p">,</span> <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="n">PrototypeAST</span><span class="o">>></span> <span class="n">FunctionProtos</span><span class="p">;</span>
+
+<span class="n">Value</span> <span class="o">*</span><span class="nf">ErrorV</span><span class="p">(</span><span class="k">const</span> <span class="kt">char</span> <span class="o">*</span><span class="n">Str</span><span class="p">)</span> <span class="p">{</span>
+ <span class="n">Error</span><span class="p">(</span><span class="n">Str</span><span class="p">);</span>
+ <span class="k">return</span> <span class="n">nullptr</span><span class="p">;</span>
+<span class="p">}</span>
+
+<span class="n">Function</span> <span class="o">*</span><span class="nf">getFunction</span><span class="p">(</span><span class="n">std</span><span class="o">::</span><span class="n">string</span> <span class="n">Name</span><span class="p">)</span> <span class="p">{</span>
+ <span class="c1">// First, see if the function has already been added to the current module.</span>
+ <span class="k">if</span> <span class="p">(</span><span class="k">auto</span> <span class="o">*</span><span class="n">F</span> <span class="o">=</span> <span class="n">TheModule</span><span class="o">-></span><span class="n">getFunction</span><span class="p">(</span><span class="n">Name</span><span class="p">))</span>
+ <span class="k">return</span> <span class="n">F</span><span class="p">;</span>
+
+ <span class="c1">// If not, check whether we can codegen the declaration from some existing</span>
+ <span class="c1">// prototype.</span>
+ <span class="k">auto</span> <span class="n">FI</span> <span class="o">=</span> <span class="n">FunctionProtos</span><span class="p">.</span><span class="n">find</span><span class="p">(</span><span class="n">Name</span><span class="p">);</span>
+ <span class="k">if</span> <span class="p">(</span><span class="n">FI</span> <span class="o">!=</span> <span class="n">FunctionProtos</span><span class="p">.</span><span class="n">end</span><span class="p">())</span>
+ <span class="k">return</span> <span class="n">FI</span><span class="o">-></span><span class="n">second</span><span class="o">-></span><span class="n">codegen</span><span class="p">();</span>
+
+ <span class="c1">// If no existing prototype exists, return null.</span>
+ <span class="k">return</span> <span class="n">nullptr</span><span class="p">;</span>
+<span class="p">}</span>
+
+<span class="n">Value</span> <span class="o">*</span><span class="n">NumberExprAST</span><span class="o">::</span><span class="n">codegen</span><span class="p">()</span> <span class="p">{</span>
+ <span class="k">return</span> <span class="n">ConstantFP</span><span class="o">::</span><span class="n">get</span><span class="p">(</span><span class="n">getGlobalContext</span><span class="p">(),</span> <span class="n">APFloat</span><span class="p">(</span><span class="n">Val</span><span class="p">));</span>
+<span class="p">}</span>
+
+<span class="n">Value</span> <span class="o">*</span><span class="n">VariableExprAST</span><span class="o">::</span><span class="n">codegen</span><span class="p">()</span> <span class="p">{</span>
+ <span class="c1">// Look this variable up in the function.</span>
+ <span class="n">Value</span> <span class="o">*</span><span class="n">V</span> <span class="o">=</span> <span class="n">NamedValues</span><span class="p">[</span><span class="n">Name</span><span class="p">];</span>
+ <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="n">V</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">ErrorV</span><span class="p">(</span><span class="s">"Unknown variable name"</span><span class="p">);</span>
+ <span class="k">return</span> <span class="n">V</span><span class="p">;</span>
+<span class="p">}</span>
+
+<span class="n">Value</span> <span class="o">*</span><span class="n">BinaryExprAST</span><span class="o">::</span><span class="n">codegen</span><span class="p">()</span> <span class="p">{</span>
+ <span class="n">Value</span> <span class="o">*</span><span class="n">L</span> <span class="o">=</span> <span class="n">LHS</span><span class="o">-></span><span class="n">codegen</span><span class="p">();</span>
+ <span class="n">Value</span> <span class="o">*</span><span class="n">R</span> <span class="o">=</span> <span class="n">RHS</span><span class="o">-></span><span class="n">codegen</span><span class="p">();</span>
+ <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="n">L</span> <span class="o">||</span> <span class="o">!</span><span class="n">R</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">nullptr</span><span class="p">;</span>
+
+ <span class="k">switch</span> <span class="p">(</span><span class="n">Op</span><span class="p">)</span> <span class="p">{</span>
+ <span class="k">case</span> <span class="sc">'+'</span>:
+ <span class="k">return</span> <span class="n">Builder</span><span class="p">.</span><span class="n">CreateFAdd</span><span class="p">(</span><span class="n">L</span><span class="p">,</span> <span class="n">R</span><span class="p">,</span> <span class="s">"addtmp"</span><span class="p">);</span>
+ <span class="k">case</span> <span class="sc">'-'</span>:
+ <span class="k">return</span> <span class="n">Builder</span><span class="p">.</span><span class="n">CreateFSub</span><span class="p">(</span><span class="n">L</span><span class="p">,</span> <span class="n">R</span><span class="p">,</span> <span class="s">"subtmp"</span><span class="p">);</span>
+ <span class="k">case</span> <span class="sc">'*'</span>:
+ <span class="k">return</span> <span class="n">Builder</span><span class="p">.</span><span class="n">CreateFMul</span><span class="p">(</span><span class="n">L</span><span class="p">,</span> <span class="n">R</span><span class="p">,</span> <span class="s">"multmp"</span><span class="p">);</span>
+ <span class="k">case</span> <span class="sc">'<'</span>:
+ <span class="n">L</span> <span class="o">=</span> <span class="n">Builder</span><span class="p">.</span><span class="n">CreateFCmpULT</span><span class="p">(</span><span class="n">L</span><span class="p">,</span> <span class="n">R</span><span class="p">,</span> <span class="s">"cmptmp"</span><span class="p">);</span>
+ <span class="c1">// Convert bool 0/1 to double 0.0 or 1.0</span>
+ <span class="k">return</span> <span class="n">Builder</span><span class="p">.</span><span class="n">CreateUIToFP</span><span class="p">(</span><span class="n">L</span><span class="p">,</span> <span class="n">Type</span><span class="o">::</span><span class="n">getDoubleTy</span><span class="p">(</span><span class="n">getGlobalContext</span><span class="p">()),</span>
+ <span class="s">"booltmp"</span><span class="p">);</span>
+ <span class="nl">default:</span>
+ <span class="k">return</span> <span class="nf">ErrorV</span><span class="p">(</span><span class="s">"invalid binary operator"</span><span class="p">);</span>
+ <span class="p">}</span>
+<span class="p">}</span>
+
+<span class="n">Value</span> <span class="o">*</span><span class="n">CallExprAST</span><span class="o">::</span><span class="n">codegen</span><span class="p">()</span> <span class="p">{</span>
+ <span class="c1">// Look up the name in the global module table.</span>
+ <span class="n">Function</span> <span class="o">*</span><span class="n">CalleeF</span> <span class="o">=</span> <span class="n">getFunction</span><span class="p">(</span><span class="n">Callee</span><span class="p">);</span>
+ <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="n">CalleeF</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">ErrorV</span><span class="p">(</span><span class="s">"Unknown function referenced"</span><span class="p">);</span>
+
+ <span class="c1">// If argument mismatch error.</span>
+ <span class="k">if</span> <span class="p">(</span><span class="n">CalleeF</span><span class="o">-></span><span class="n">arg_size</span><span class="p">()</span> <span class="o">!=</span> <span class="n">Args</span><span class="p">.</span><span class="n">size</span><span class="p">())</span>
+ <span class="k">return</span> <span class="n">ErrorV</span><span class="p">(</span><span class="s">"Incorrect # arguments passed"</span><span class="p">);</span>
+
+ <span class="n">std</span><span class="o">::</span><span class="n">vector</span><span class="o"><</span><span class="n">Value</span> <span class="o">*></span> <span class="n">ArgsV</span><span class="p">;</span>
+ <span class="k">for</span> <span class="p">(</span><span class="kt">unsigned</span> <span class="n">i</span> <span class="o">=</span> <span class="mi">0</span><span class="p">,</span> <span class="n">e</span> <span class="o">=</span> <span class="n">Args</span><span class="p">.</span><span class="n">size</span><span class="p">();</span> <span class="n">i</span> <span class="o">!=</span> <span class="n">e</span><span class="p">;</span> <span class="o">++</span><span class="n">i</span><span class="p">)</span> <span class="p">{</span>
+ <span class="n">ArgsV</span><span class="p">.</span><span class="n">push_back</span><span class="p">(</span><span class="n">Args</span><span class="p">[</span><span class="n">i</span><span class="p">]</span><span class="o">-></span><span class="n">codegen</span><span class="p">());</span>
+ <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="n">ArgsV</span><span class="p">.</span><span class="n">back</span><span class="p">())</span>
+ <span class="k">return</span> <span class="n">nullptr</span><span class="p">;</span>
+ <span class="p">}</span>
+
+ <span class="k">return</span> <span class="n">Builder</span><span class="p">.</span><span class="n">CreateCall</span><span class="p">(</span><span class="n">CalleeF</span><span class="p">,</span> <span class="n">ArgsV</span><span class="p">,</span> <span class="s">"calltmp"</span><span class="p">);</span>
+<span class="p">}</span>
+
+<span class="n">Value</span> <span class="o">*</span><span class="n">IfExprAST</span><span class="o">::</span><span class="n">codegen</span><span class="p">()</span> <span class="p">{</span>
+ <span class="n">Value</span> <span class="o">*</span><span class="n">CondV</span> <span class="o">=</span> <span class="n">Cond</span><span class="o">-></span><span class="n">codegen</span><span class="p">();</span>
+ <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="n">CondV</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">nullptr</span><span class="p">;</span>
+
+ <span class="c1">// Convert condition to a bool by comparing equal to 0.0.</span>
+ <span class="n">CondV</span> <span class="o">=</span> <span class="n">Builder</span><span class="p">.</span><span class="n">CreateFCmpONE</span><span class="p">(</span>
+ <span class="n">CondV</span><span class="p">,</span> <span class="n">ConstantFP</span><span class="o">::</span><span class="n">get</span><span class="p">(</span><span class="n">getGlobalContext</span><span class="p">(),</span> <span class="n">APFloat</span><span class="p">(</span><span class="mf">0.0</span><span class="p">)),</span> <span class="s">"ifcond"</span><span class="p">);</span>
+
+ <span class="n">Function</span> <span class="o">*</span><span class="n">TheFunction</span> <span class="o">=</span> <span class="n">Builder</span><span class="p">.</span><span class="n">GetInsertBlock</span><span class="p">()</span><span class="o">-></span><span class="n">getParent</span><span class="p">();</span>
+
+ <span class="c1">// Create blocks for the then and else cases. Insert the 'then' block at the</span>
+ <span class="c1">// end of the function.</span>
+ <span class="n">BasicBlock</span> <span class="o">*</span><span class="n">ThenBB</span> <span class="o">=</span>
+ <span class="n">BasicBlock</span><span class="o">::</span><span class="n">Create</span><span class="p">(</span><span class="n">getGlobalContext</span><span class="p">(),</span> <span class="s">"then"</span><span class="p">,</span> <span class="n">TheFunction</span><span class="p">);</span>
+ <span class="n">BasicBlock</span> <span class="o">*</span><span class="n">ElseBB</span> <span class="o">=</span> <span class="n">BasicBlock</span><span class="o">::</span><span class="n">Create</span><span class="p">(</span><span class="n">getGlobalContext</span><span class="p">(),</span> <span class="s">"else"</span><span class="p">);</span>
+ <span class="n">BasicBlock</span> <span class="o">*</span><span class="n">MergeBB</span> <span class="o">=</span> <span class="n">BasicBlock</span><span class="o">::</span><span class="n">Create</span><span class="p">(</span><span class="n">getGlobalContext</span><span class="p">(),</span> <span class="s">"ifcont"</span><span class="p">);</span>
+
+ <span class="n">Builder</span><span class="p">.</span><span class="n">CreateCondBr</span><span class="p">(</span><span class="n">CondV</span><span class="p">,</span> <span class="n">ThenBB</span><span class="p">,</span> <span class="n">ElseBB</span><span class="p">);</span>
+
+ <span class="c1">// Emit then value.</span>
+ <span class="n">Builder</span><span class="p">.</span><span class="n">SetInsertPoint</span><span class="p">(</span><span class="n">ThenBB</span><span class="p">);</span>
+
+ <span class="n">Value</span> <span class="o">*</span><span class="n">ThenV</span> <span class="o">=</span> <span class="n">Then</span><span class="o">-></span><span class="n">codegen</span><span class="p">();</span>
+ <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="n">ThenV</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">nullptr</span><span class="p">;</span>
+
+ <span class="n">Builder</span><span class="p">.</span><span class="n">CreateBr</span><span class="p">(</span><span class="n">MergeBB</span><span class="p">);</span>
+ <span class="c1">// Codegen of 'Then' can change the current block, update ThenBB for the PHI.</span>
+ <span class="n">ThenBB</span> <span class="o">=</span> <span class="n">Builder</span><span class="p">.</span><span class="n">GetInsertBlock</span><span class="p">();</span>
+
+ <span class="c1">// Emit else block.</span>
+ <span class="n">TheFunction</span><span class="o">-></span><span class="n">getBasicBlockList</span><span class="p">().</span><span class="n">push_back</span><span class="p">(</span><span class="n">ElseBB</span><span class="p">);</span>
+ <span class="n">Builder</span><span class="p">.</span><span class="n">SetInsertPoint</span><span class="p">(</span><span class="n">ElseBB</span><span class="p">);</span>
+
+ <span class="n">Value</span> <span class="o">*</span><span class="n">ElseV</span> <span class="o">=</span> <span class="n">Else</span><span class="o">-></span><span class="n">codegen</span><span class="p">();</span>
+ <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="n">ElseV</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">nullptr</span><span class="p">;</span>
+
+ <span class="n">Builder</span><span class="p">.</span><span class="n">CreateBr</span><span class="p">(</span><span class="n">MergeBB</span><span class="p">);</span>
+ <span class="c1">// Codegen of 'Else' can change the current block, update ElseBB for the PHI.</span>
+ <span class="n">ElseBB</span> <span class="o">=</span> <span class="n">Builder</span><span class="p">.</span><span class="n">GetInsertBlock</span><span class="p">();</span>
+
+ <span class="c1">// Emit merge block.</span>
+ <span class="n">TheFunction</span><span class="o">-></span><span class="n">getBasicBlockList</span><span class="p">().</span><span class="n">push_back</span><span class="p">(</span><span class="n">MergeBB</span><span class="p">);</span>
+ <span class="n">Builder</span><span class="p">.</span><span class="n">SetInsertPoint</span><span class="p">(</span><span class="n">MergeBB</span><span class="p">);</span>
+ <span class="n">PHINode</span> <span class="o">*</span><span class="n">PN</span> <span class="o">=</span>
+ <span class="n">Builder</span><span class="p">.</span><span class="n">CreatePHI</span><span class="p">(</span><span class="n">Type</span><span class="o">::</span><span class="n">getDoubleTy</span><span class="p">(</span><span class="n">getGlobalContext</span><span class="p">()),</span> <span class="mi">2</span><span class="p">,</span> <span class="s">"iftmp"</span><span class="p">);</span>
+
+ <span class="n">PN</span><span class="o">-></span><span class="n">addIncoming</span><span class="p">(</span><span class="n">ThenV</span><span class="p">,</span> <span class="n">ThenBB</span><span class="p">);</span>
+ <span class="n">PN</span><span class="o">-></span><span class="n">addIncoming</span><span class="p">(</span><span class="n">ElseV</span><span class="p">,</span> <span class="n">ElseBB</span><span class="p">);</span>
+ <span class="k">return</span> <span class="n">PN</span><span class="p">;</span>
+<span class="p">}</span>
+
+<span class="c1">// Output for-loop as:</span>
+<span class="c1">// ...</span>
+<span class="c1">// start = startexpr</span>
+<span class="c1">// goto loop</span>
+<span class="c1">// loop:</span>
+<span class="c1">// variable = phi [start, loopheader], [nextvariable, loopend]</span>
+<span class="c1">// ...</span>
+<span class="c1">// bodyexpr</span>
+<span class="c1">// ...</span>
+<span class="c1">// loopend:</span>
+<span class="c1">// step = stepexpr</span>
+<span class="c1">// nextvariable = variable + step</span>
+<span class="c1">// endcond = endexpr</span>
+<span class="c1">// br endcond, loop, endloop</span>
+<span class="c1">// outloop:</span>
+<span class="n">Value</span> <span class="o">*</span><span class="n">ForExprAST</span><span class="o">::</span><span class="n">codegen</span><span class="p">()</span> <span class="p">{</span>
+ <span class="c1">// Emit the start code first, without 'variable' in scope.</span>
+ <span class="n">Value</span> <span class="o">*</span><span class="n">StartVal</span> <span class="o">=</span> <span class="n">Start</span><span class="o">-></span><span class="n">codegen</span><span class="p">();</span>
+ <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="n">StartVal</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">nullptr</span><span class="p">;</span>
+
+ <span class="c1">// Make the new basic block for the loop header, inserting after current</span>
+ <span class="c1">// block.</span>
+ <span class="n">Function</span> <span class="o">*</span><span class="n">TheFunction</span> <span class="o">=</span> <span class="n">Builder</span><span class="p">.</span><span class="n">GetInsertBlock</span><span class="p">()</span><span class="o">-></span><span class="n">getParent</span><span class="p">();</span>
+ <span class="n">BasicBlock</span> <span class="o">*</span><span class="n">PreheaderBB</span> <span class="o">=</span> <span class="n">Builder</span><span class="p">.</span><span class="n">GetInsertBlock</span><span class="p">();</span>
+ <span class="n">BasicBlock</span> <span class="o">*</span><span class="n">LoopBB</span> <span class="o">=</span>
+ <span class="n">BasicBlock</span><span class="o">::</span><span class="n">Create</span><span class="p">(</span><span class="n">getGlobalContext</span><span class="p">(),</span> <span class="s">"loop"</span><span class="p">,</span> <span class="n">TheFunction</span><span class="p">);</span>
+
+ <span class="c1">// Insert an explicit fall through from the current block to the LoopBB.</span>
+ <span class="n">Builder</span><span class="p">.</span><span class="n">CreateBr</span><span class="p">(</span><span class="n">LoopBB</span><span class="p">);</span>
+
+ <span class="c1">// Start insertion in LoopBB.</span>
+ <span class="n">Builder</span><span class="p">.</span><span class="n">SetInsertPoint</span><span class="p">(</span><span class="n">LoopBB</span><span class="p">);</span>
+
+ <span class="c1">// Start the PHI node with an entry for Start.</span>
+ <span class="n">PHINode</span> <span class="o">*</span><span class="n">Variable</span> <span class="o">=</span> <span class="n">Builder</span><span class="p">.</span><span class="n">CreatePHI</span><span class="p">(</span><span class="n">Type</span><span class="o">::</span><span class="n">getDoubleTy</span><span class="p">(</span><span class="n">getGlobalContext</span><span class="p">()),</span>
+ <span class="mi">2</span><span class="p">,</span> <span class="n">VarName</span><span class="p">.</span><span class="n">c_str</span><span class="p">());</span>
+ <span class="n">Variable</span><span class="o">-></span><span class="n">addIncoming</span><span class="p">(</span><span class="n">StartVal</span><span class="p">,</span> <span class="n">PreheaderBB</span><span class="p">);</span>
+
+ <span class="c1">// Within the loop, the variable is defined equal to the PHI node. If it</span>
+ <span class="c1">// shadows an existing variable, we have to restore it, so save it now.</span>
+ <span class="n">Value</span> <span class="o">*</span><span class="n">OldVal</span> <span class="o">=</span> <span class="n">NamedValues</span><span class="p">[</span><span class="n">VarName</span><span class="p">];</span>
+ <span class="n">NamedValues</span><span class="p">[</span><span class="n">VarName</span><span class="p">]</span> <span class="o">=</span> <span class="n">Variable</span><span class="p">;</span>
+
+ <span class="c1">// Emit the body of the loop. This, like any other expr, can change the</span>
+ <span class="c1">// current BB. Note that we ignore the value computed by the body, but don't</span>
+ <span class="c1">// allow an error.</span>
+ <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="n">Body</span><span class="o">-></span><span class="n">codegen</span><span class="p">())</span>
+ <span class="k">return</span> <span class="n">nullptr</span><span class="p">;</span>
+
+ <span class="c1">// Emit the step value.</span>
+ <span class="n">Value</span> <span class="o">*</span><span class="n">StepVal</span> <span class="o">=</span> <span class="n">nullptr</span><span class="p">;</span>
+ <span class="k">if</span> <span class="p">(</span><span class="n">Step</span><span class="p">)</span> <span class="p">{</span>
+ <span class="n">StepVal</span> <span class="o">=</span> <span class="n">Step</span><span class="o">-></span><span class="n">codegen</span><span class="p">();</span>
+ <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="n">StepVal</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">nullptr</span><span class="p">;</span>
+ <span class="p">}</span> <span class="k">else</span> <span class="p">{</span>
+ <span class="c1">// If not specified, use 1.0.</span>
+ <span class="n">StepVal</span> <span class="o">=</span> <span class="n">ConstantFP</span><span class="o">::</span><span class="n">get</span><span class="p">(</span><span class="n">getGlobalContext</span><span class="p">(),</span> <span class="n">APFloat</span><span class="p">(</span><span class="mf">1.0</span><span class="p">));</span>
+ <span class="p">}</span>
+
+ <span class="n">Value</span> <span class="o">*</span><span class="n">NextVar</span> <span class="o">=</span> <span class="n">Builder</span><span class="p">.</span><span class="n">CreateFAdd</span><span class="p">(</span><span class="n">Variable</span><span class="p">,</span> <span class="n">StepVal</span><span class="p">,</span> <span class="s">"nextvar"</span><span class="p">);</span>
+
+ <span class="c1">// Compute the end condition.</span>
+ <span class="n">Value</span> <span class="o">*</span><span class="n">EndCond</span> <span class="o">=</span> <span class="n">End</span><span class="o">-></span><span class="n">codegen</span><span class="p">();</span>
+ <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="n">EndCond</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">nullptr</span><span class="p">;</span>
+
+ <span class="c1">// Convert condition to a bool by comparing equal to 0.0.</span>
+ <span class="n">EndCond</span> <span class="o">=</span> <span class="n">Builder</span><span class="p">.</span><span class="n">CreateFCmpONE</span><span class="p">(</span>
+ <span class="n">EndCond</span><span class="p">,</span> <span class="n">ConstantFP</span><span class="o">::</span><span class="n">get</span><span class="p">(</span><span class="n">getGlobalContext</span><span class="p">(),</span> <span class="n">APFloat</span><span class="p">(</span><span class="mf">0.0</span><span class="p">)),</span> <span class="s">"loopcond"</span><span class="p">);</span>
+
+ <span class="c1">// Create the "after loop" block and insert it.</span>
+ <span class="n">BasicBlock</span> <span class="o">*</span><span class="n">LoopEndBB</span> <span class="o">=</span> <span class="n">Builder</span><span class="p">.</span><span class="n">GetInsertBlock</span><span class="p">();</span>
+ <span class="n">BasicBlock</span> <span class="o">*</span><span class="n">AfterBB</span> <span class="o">=</span>
+ <span class="n">BasicBlock</span><span class="o">::</span><span class="n">Create</span><span class="p">(</span><span class="n">getGlobalContext</span><span class="p">(),</span> <span class="s">"afterloop"</span><span class="p">,</span> <span class="n">TheFunction</span><span class="p">);</span>
+
+ <span class="c1">// Insert the conditional branch into the end of LoopEndBB.</span>
+ <span class="n">Builder</span><span class="p">.</span><span class="n">CreateCondBr</span><span class="p">(</span><span class="n">EndCond</span><span class="p">,</span> <span class="n">LoopBB</span><span class="p">,</span> <span class="n">AfterBB</span><span class="p">);</span>
+
+ <span class="c1">// Any new code will be inserted in AfterBB.</span>
+ <span class="n">Builder</span><span class="p">.</span><span class="n">SetInsertPoint</span><span class="p">(</span><span class="n">AfterBB</span><span class="p">);</span>
+
+ <span class="c1">// Add a new entry to the PHI node for the backedge.</span>
+ <span class="n">Variable</span><span class="o">-></span><span class="n">addIncoming</span><span class="p">(</span><span class="n">NextVar</span><span class="p">,</span> <span class="n">LoopEndBB</span><span class="p">);</span>
+
+ <span class="c1">// Restore the unshadowed variable.</span>
+ <span class="k">if</span> <span class="p">(</span><span class="n">OldVal</span><span class="p">)</span>
+ <span class="n">NamedValues</span><span class="p">[</span><span class="n">VarName</span><span class="p">]</span> <span class="o">=</span> <span class="n">OldVal</span><span class="p">;</span>
+ <span class="k">else</span>
+ <span class="n">NamedValues</span><span class="p">.</span><span class="n">erase</span><span class="p">(</span><span class="n">VarName</span><span class="p">);</span>
+
+ <span class="c1">// for expr always returns 0.0.</span>
+ <span class="k">return</span> <span class="n">Constant</span><span class="o">::</span><span class="n">getNullValue</span><span class="p">(</span><span class="n">Type</span><span class="o">::</span><span class="n">getDoubleTy</span><span class="p">(</span><span class="n">getGlobalContext</span><span class="p">()));</span>
+<span class="p">}</span>
+
+<span class="n">Function</span> <span class="o">*</span><span class="n">PrototypeAST</span><span class="o">::</span><span class="n">codegen</span><span class="p">()</span> <span class="p">{</span>
+ <span class="c1">// Make the function type: double(double,double) etc.</span>
+ <span class="n">std</span><span class="o">::</span><span class="n">vector</span><span class="o"><</span><span class="n">Type</span> <span class="o">*></span> <span class="n">Doubles</span><span class="p">(</span><span class="n">Args</span><span class="p">.</span><span class="n">size</span><span class="p">(),</span>
+ <span class="n">Type</span><span class="o">::</span><span class="n">getDoubleTy</span><span class="p">(</span><span class="n">getGlobalContext</span><span class="p">()));</span>
+ <span class="n">FunctionType</span> <span class="o">*</span><span class="n">FT</span> <span class="o">=</span>
+ <span class="n">FunctionType</span><span class="o">::</span><span class="n">get</span><span class="p">(</span><span class="n">Type</span><span class="o">::</span><span class="n">getDoubleTy</span><span class="p">(</span><span class="n">getGlobalContext</span><span class="p">()),</span> <span class="n">Doubles</span><span class="p">,</span> <span class="nb">false</span><span class="p">);</span>
+
+ <span class="n">Function</span> <span class="o">*</span><span class="n">F</span> <span class="o">=</span>
+ <span class="n">Function</span><span class="o">::</span><span class="n">Create</span><span class="p">(</span><span class="n">FT</span><span class="p">,</span> <span class="n">Function</span><span class="o">::</span><span class="n">ExternalLinkage</span><span class="p">,</span> <span class="n">Name</span><span class="p">,</span> <span class="n">TheModule</span><span class="p">.</span><span class="n">get</span><span class="p">());</span>
+
+ <span class="c1">// Set names for all arguments.</span>
+ <span class="kt">unsigned</span> <span class="n">Idx</span> <span class="o">=</span> <span class="mi">0</span><span class="p">;</span>
+ <span class="k">for</span> <span class="p">(</span><span class="k">auto</span> <span class="o">&</span><span class="n">Arg</span> <span class="o">:</span> <span class="n">F</span><span class="o">-></span><span class="n">args</span><span class="p">())</span>
+ <span class="n">Arg</span><span class="p">.</span><span class="n">setName</span><span class="p">(</span><span class="n">Args</span><span class="p">[</span><span class="n">Idx</span><span class="o">++</span><span class="p">]);</span>
+
+ <span class="k">return</span> <span class="n">F</span><span class="p">;</span>
+<span class="p">}</span>
+
+<span class="n">Function</span> <span class="o">*</span><span class="n">FunctionAST</span><span class="o">::</span><span class="n">codegen</span><span class="p">()</span> <span class="p">{</span>
+ <span class="c1">// Transfer ownership of the prototype to the FunctionProtos map, but keep a</span>
+ <span class="c1">// reference to it for use below.</span>
+ <span class="k">auto</span> <span class="o">&</span><span class="n">P</span> <span class="o">=</span> <span class="o">*</span><span class="n">Proto</span><span class="p">;</span>
+ <span class="n">FunctionProtos</span><span class="p">[</span><span class="n">Proto</span><span class="o">-></span><span class="n">getName</span><span class="p">()]</span> <span class="o">=</span> <span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">Proto</span><span class="p">);</span>
+ <span class="n">Function</span> <span class="o">*</span><span class="n">TheFunction</span> <span class="o">=</span> <span class="n">getFunction</span><span class="p">(</span><span class="n">P</span><span class="p">.</span><span class="n">getName</span><span class="p">());</span>
+ <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="n">TheFunction</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">nullptr</span><span class="p">;</span>
+
+ <span class="c1">// Create a new basic block to start insertion into.</span>
+ <span class="n">BasicBlock</span> <span class="o">*</span><span class="n">BB</span> <span class="o">=</span> <span class="n">BasicBlock</span><span class="o">::</span><span class="n">Create</span><span class="p">(</span><span class="n">getGlobalContext</span><span class="p">(),</span> <span class="s">"entry"</span><span class="p">,</span> <span class="n">TheFunction</span><span class="p">);</span>
+ <span class="n">Builder</span><span class="p">.</span><span class="n">SetInsertPoint</span><span class="p">(</span><span class="n">BB</span><span class="p">);</span>
+
+ <span class="c1">// Record the function arguments in the NamedValues map.</span>
+ <span class="n">NamedValues</span><span class="p">.</span><span class="n">clear</span><span class="p">();</span>
+ <span class="k">for</span> <span class="p">(</span><span class="k">auto</span> <span class="o">&</span><span class="n">Arg</span> <span class="o">:</span> <span class="n">TheFunction</span><span class="o">-></span><span class="n">args</span><span class="p">())</span>
+ <span class="n">NamedValues</span><span class="p">[</span><span class="n">Arg</span><span class="p">.</span><span class="n">getName</span><span class="p">()]</span> <span class="o">=</span> <span class="o">&</span><span class="n">Arg</span><span class="p">;</span>
+
+ <span class="k">if</span> <span class="p">(</span><span class="n">Value</span> <span class="o">*</span><span class="n">RetVal</span> <span class="o">=</span> <span class="n">Body</span><span class="o">-></span><span class="n">codegen</span><span class="p">())</span> <span class="p">{</span>
+ <span class="c1">// Finish off the function.</span>
+ <span class="n">Builder</span><span class="p">.</span><span class="n">CreateRet</span><span class="p">(</span><span class="n">RetVal</span><span class="p">);</span>
+
+ <span class="c1">// Validate the generated code, checking for consistency.</span>
+ <span class="n">verifyFunction</span><span class="p">(</span><span class="o">*</span><span class="n">TheFunction</span><span class="p">);</span>
+
+ <span class="c1">// Run the optimizer on the function.</span>
+ <span class="n">TheFPM</span><span class="o">-></span><span class="n">run</span><span class="p">(</span><span class="o">*</span><span class="n">TheFunction</span><span class="p">);</span>
+
+ <span class="k">return</span> <span class="n">TheFunction</span><span class="p">;</span>
+ <span class="p">}</span>
+
+ <span class="c1">// Error reading body, remove function.</span>
+ <span class="n">TheFunction</span><span class="o">-></span><span class="n">eraseFromParent</span><span class="p">();</span>
+ <span class="k">return</span> <span class="n">nullptr</span><span class="p">;</span>
+<span class="p">}</span>
+
+<span class="c1">//===----------------------------------------------------------------------===//</span>
+<span class="c1">// Top-Level parsing and JIT Driver</span>
+<span class="c1">//===----------------------------------------------------------------------===//</span>
+
+<span class="k">static</span> <span class="kt">void</span> <span class="n">InitializeModuleAndPassManager</span><span class="p">()</span> <span class="p">{</span>
+ <span class="c1">// Open a new module.</span>
+ <span class="n">TheModule</span> <span class="o">=</span> <span class="n">llvm</span><span class="o">::</span><span class="n">make_unique</span><span class="o"><</span><span class="n">Module</span><span class="o">></span><span class="p">(</span><span class="s">"my cool jit"</span><span class="p">,</span> <span class="n">getGlobalContext</span><span class="p">());</span>
+ <span class="n">TheModule</span><span class="o">-></span><span class="n">setDataLayout</span><span class="p">(</span><span class="n">TheJIT</span><span class="o">-></span><span class="n">getTargetMachine</span><span class="p">().</span><span class="n">createDataLayout</span><span class="p">());</span>
+
+ <span class="c1">// Create a new pass manager attached to it.</span>
+ <span class="n">TheFPM</span> <span class="o">=</span> <span class="n">llvm</span><span class="o">::</span><span class="n">make_unique</span><span class="o"><</span><span class="n">legacy</span><span class="o">::</span><span class="n">FunctionPassManager</span><span class="o">></span><span class="p">(</span><span class="n">TheModule</span><span class="p">.</span><span class="n">get</span><span class="p">());</span>
+
+ <span class="c1">// Do simple "peephole" optimizations and bit-twiddling optzns.</span>
+ <span class="n">TheFPM</span><span class="o">-></span><span class="n">add</span><span class="p">(</span><span class="n">createInstructionCombiningPass</span><span class="p">());</span>
+ <span class="c1">// Reassociate expressions.</span>
+ <span class="n">TheFPM</span><span class="o">-></span><span class="n">add</span><span class="p">(</span><span class="n">createReassociatePass</span><span class="p">());</span>
+ <span class="c1">// Eliminate Common SubExpressions.</span>
+ <span class="n">TheFPM</span><span class="o">-></span><span class="n">add</span><span class="p">(</span><span class="n">createGVNPass</span><span class="p">());</span>
+ <span class="c1">// Simplify the control flow graph (deleting unreachable blocks, etc).</span>
+ <span class="n">TheFPM</span><span class="o">-></span><span class="n">add</span><span class="p">(</span><span class="n">createCFGSimplificationPass</span><span class="p">());</span>
+
+ <span class="n">TheFPM</span><span class="o">-></span><span class="n">doInitialization</span><span class="p">();</span>
+<span class="p">}</span>
+
+<span class="k">static</span> <span class="kt">void</span> <span class="n">HandleDefinition</span><span class="p">()</span> <span class="p">{</span>
+ <span class="k">if</span> <span class="p">(</span><span class="k">auto</span> <span class="n">FnAST</span> <span class="o">=</span> <span class="n">ParseDefinition</span><span class="p">())</span> <span class="p">{</span>
+ <span class="k">if</span> <span class="p">(</span><span class="k">auto</span> <span class="o">*</span><span class="n">FnIR</span> <span class="o">=</span> <span class="n">FnAST</span><span class="o">-></span><span class="n">codegen</span><span class="p">())</span> <span class="p">{</span>
+ <span class="n">fprintf</span><span class="p">(</span><span class="n">stderr</span><span class="p">,</span> <span class="s">"Read function definition:"</span><span class="p">);</span>
+ <span class="n">FnIR</span><span class="o">-></span><span class="n">dump</span><span class="p">();</span>
+ <span class="n">TheJIT</span><span class="o">-></span><span class="n">addModule</span><span class="p">(</span><span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">TheModule</span><span class="p">));</span>
+ <span class="n">InitializeModuleAndPassManager</span><span class="p">();</span>
+ <span class="p">}</span>
+ <span class="p">}</span> <span class="k">else</span> <span class="p">{</span>
+ <span class="c1">// Skip token for error recovery.</span>
+ <span class="n">getNextToken</span><span class="p">();</span>
+ <span class="p">}</span>
+<span class="p">}</span>
+
+<span class="k">static</span> <span class="kt">void</span> <span class="n">HandleExtern</span><span class="p">()</span> <span class="p">{</span>
+ <span class="k">if</span> <span class="p">(</span><span class="k">auto</span> <span class="n">ProtoAST</span> <span class="o">=</span> <span class="n">ParseExtern</span><span class="p">())</span> <span class="p">{</span>
+ <span class="k">if</span> <span class="p">(</span><span class="k">auto</span> <span class="o">*</span><span class="n">FnIR</span> <span class="o">=</span> <span class="n">ProtoAST</span><span class="o">-></span><span class="n">codegen</span><span class="p">())</span> <span class="p">{</span>
+ <span class="n">fprintf</span><span class="p">(</span><span class="n">stderr</span><span class="p">,</span> <span class="s">"Read extern: "</span><span class="p">);</span>
+ <span class="n">FnIR</span><span class="o">-></span><span class="n">dump</span><span class="p">();</span>
+ <span class="n">FunctionProtos</span><span class="p">[</span><span class="n">ProtoAST</span><span class="o">-></span><span class="n">getName</span><span class="p">()]</span> <span class="o">=</span> <span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">ProtoAST</span><span class="p">);</span>
+ <span class="p">}</span>
+ <span class="p">}</span> <span class="k">else</span> <span class="p">{</span>
+ <span class="c1">// Skip token for error recovery.</span>
+ <span class="n">getNextToken</span><span class="p">();</span>
+ <span class="p">}</span>
+<span class="p">}</span>
+
+<span class="k">static</span> <span class="kt">void</span> <span class="n">HandleTopLevelExpression</span><span class="p">()</span> <span class="p">{</span>
+ <span class="c1">// Evaluate a top-level expression into an anonymous function.</span>
+ <span class="k">if</span> <span class="p">(</span><span class="k">auto</span> <span class="n">FnAST</span> <span class="o">=</span> <span class="n">ParseTopLevelExpr</span><span class="p">())</span> <span class="p">{</span>
+ <span class="k">if</span> <span class="p">(</span><span class="n">FnAST</span><span class="o">-></span><span class="n">codegen</span><span class="p">())</span> <span class="p">{</span>
+
+ <span class="c1">// JIT the module containing the anonymous expression, keeping a handle so</span>
+ <span class="c1">// we can free it later.</span>
+ <span class="k">auto</span> <span class="n">H</span> <span class="o">=</span> <span class="n">TheJIT</span><span class="o">-></span><span class="n">addModule</span><span class="p">(</span><span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">TheModule</span><span class="p">));</span>
+ <span class="n">InitializeModuleAndPassManager</span><span class="p">();</span>
+
+ <span class="c1">// Search the JIT for the __anon_expr symbol.</span>
+ <span class="k">auto</span> <span class="n">ExprSymbol</span> <span class="o">=</span> <span class="n">TheJIT</span><span class="o">-></span><span class="n">findSymbol</span><span class="p">(</span><span class="s">"__anon_expr"</span><span class="p">);</span>
+ <span class="n">assert</span><span class="p">(</span><span class="n">ExprSymbol</span> <span class="o">&&</span> <span class="s">"Function not found"</span><span class="p">);</span>
+
+ <span class="c1">// Get the symbol's address and cast it to the right type (takes no</span>
+ <span class="c1">// arguments, returns a double) so we can call it as a native function.</span>
+ <span class="kt">double</span> <span class="p">(</span><span class="o">*</span><span class="n">FP</span><span class="p">)()</span> <span class="o">=</span> <span class="p">(</span><span class="kt">double</span> <span class="p">(</span><span class="o">*</span><span class="p">)())(</span><span class="kt">intptr_t</span><span class="p">)</span><span class="n">ExprSymbol</span><span class="p">.</span><span class="n">getAddress</span><span class="p">();</span>
+ <span class="n">fprintf</span><span class="p">(</span><span class="n">stderr</span><span class="p">,</span> <span class="s">"Evaluated to %f</span><span class="se">\n</span><span class="s">"</span><span class="p">,</span> <span class="n">FP</span><span class="p">());</span>
+
+ <span class="c1">// Delete the anonymous expression module from the JIT.</span>
+ <span class="n">TheJIT</span><span class="o">-></span><span class="n">removeModule</span><span class="p">(</span><span class="n">H</span><span class="p">);</span>
+ <span class="p">}</span>
+ <span class="p">}</span> <span class="k">else</span> <span class="p">{</span>
+ <span class="c1">// Skip token for error recovery.</span>
+ <span class="n">getNextToken</span><span class="p">();</span>
+ <span class="p">}</span>
+<span class="p">}</span>
+
+<span class="c1">/// top ::= definition | external | expression | ';'</span>
+<span class="k">static</span> <span class="kt">void</span> <span class="n">MainLoop</span><span class="p">()</span> <span class="p">{</span>
+ <span class="k">while</span> <span class="p">(</span><span class="mi">1</span><span class="p">)</span> <span class="p">{</span>
+ <span class="n">fprintf</span><span class="p">(</span><span class="n">stderr</span><span class="p">,</span> <span class="s">"ready> "</span><span class="p">);</span>
+ <span class="k">switch</span> <span class="p">(</span><span class="n">CurTok</span><span class="p">)</span> <span class="p">{</span>
+ <span class="k">case</span> <span class="n">tok_eof</span>:
+ <span class="k">return</span><span class="p">;</span>
+ <span class="k">case</span> <span class="sc">';'</span>: <span class="c1">// ignore top-level semicolons.</span>
+ <span class="n">getNextToken</span><span class="p">();</span>
+ <span class="k">break</span><span class="p">;</span>
+ <span class="k">case</span> <span class="n">tok_def</span>:
+ <span class="n">HandleDefinition</span><span class="p">();</span>
+ <span class="k">break</span><span class="p">;</span>
+ <span class="k">case</span> <span class="n">tok_extern</span>:
+ <span class="n">HandleExtern</span><span class="p">();</span>
+ <span class="k">break</span><span class="p">;</span>
+ <span class="nl">default:</span>
+ <span class="n">HandleTopLevelExpression</span><span class="p">();</span>
+ <span class="k">break</span><span class="p">;</span>
+ <span class="p">}</span>
+ <span class="p">}</span>
+<span class="p">}</span>
+
+<span class="c1">//===----------------------------------------------------------------------===//</span>
+<span class="c1">// "Library" functions that can be "extern'd" from user code.</span>
+<span class="c1">//===----------------------------------------------------------------------===//</span>
+
+<span class="c1">/// putchard - putchar that takes a double and returns 0.</span>
+<span class="k">extern</span> <span class="s">"C"</span> <span class="kt">double</span> <span class="n">putchard</span><span class="p">(</span><span class="kt">double</span> <span class="n">X</span><span class="p">)</span> <span class="p">{</span>
+ <span class="n">fputc</span><span class="p">((</span><span class="kt">char</span><span class="p">)</span><span class="n">X</span><span class="p">,</span> <span class="n">stderr</span><span class="p">);</span>
+ <span class="k">return</span> <span class="mi">0</span><span class="p">;</span>
+<span class="p">}</span>
+
+<span class="c1">/// printd - printf that takes a double prints it as "%f\n", returning 0.</span>
+<span class="k">extern</span> <span class="s">"C"</span> <span class="kt">double</span> <span class="n">printd</span><span class="p">(</span><span class="kt">double</span> <span class="n">X</span><span class="p">)</span> <span class="p">{</span>
+ <span class="n">fprintf</span><span class="p">(</span><span class="n">stderr</span><span class="p">,</span> <span class="s">"%f</span><span class="se">\n</span><span class="s">"</span><span class="p">,</span> <span class="n">X</span><span class="p">);</span>
+ <span class="k">return</span> <span class="mi">0</span><span class="p">;</span>
+<span class="p">}</span>
+
+<span class="c1">//===----------------------------------------------------------------------===//</span>
+<span class="c1">// Main driver code.</span>
+<span class="c1">//===----------------------------------------------------------------------===//</span>
+
+<span class="kt">int</span> <span class="n">main</span><span class="p">()</span> <span class="p">{</span>
+ <span class="n">InitializeNativeTarget</span><span class="p">();</span>
+ <span class="n">InitializeNativeTargetAsmPrinter</span><span class="p">();</span>
+ <span class="n">InitializeNativeTargetAsmParser</span><span class="p">();</span>
+
+ <span class="c1">// Install standard binary operators.</span>
+ <span class="c1">// 1 is lowest precedence.</span>
+ <span class="n">BinopPrecedence</span><span class="p">[</span><span class="sc">'<'</span><span class="p">]</span> <span class="o">=</span> <span class="mi">10</span><span class="p">;</span>
+ <span class="n">BinopPrecedence</span><span class="p">[</span><span class="sc">'+'</span><span class="p">]</span> <span class="o">=</span> <span class="mi">20</span><span class="p">;</span>
+ <span class="n">BinopPrecedence</span><span class="p">[</span><span class="sc">'-'</span><span class="p">]</span> <span class="o">=</span> <span class="mi">20</span><span class="p">;</span>
+ <span class="n">BinopPrecedence</span><span class="p">[</span><span class="sc">'*'</span><span class="p">]</span> <span class="o">=</span> <span class="mi">40</span><span class="p">;</span> <span class="c1">// highest.</span>
+
+ <span class="c1">// Prime the first token.</span>
+ <span class="n">fprintf</span><span class="p">(</span><span class="n">stderr</span><span class="p">,</span> <span class="s">"ready> "</span><span class="p">);</span>
+ <span class="n">getNextToken</span><span class="p">();</span>
+
+ <span class="n">TheJIT</span> <span class="o">=</span> <span class="n">llvm</span><span class="o">::</span><span class="n">make_unique</span><span class="o"><</span><span class="n">KaleidoscopeJIT</span><span class="o">></span><span class="p">();</span>
+
+ <span class="n">InitializeModuleAndPassManager</span><span class="p">();</span>
+
+ <span class="c1">// Run the main "interpreter loop" now.</span>
+ <span class="n">MainLoop</span><span class="p">();</span>
+
+ <span class="k">return</span> <span class="mi">0</span><span class="p">;</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+<p><a class="reference external" href="LangImpl6.html">Next: Extending the language: user-defined operators</a></p>
+</div>
+</div>
+
+
+ </div>
+ </div>
+ <div class="clearer"></div>
+ </div>
+ <div class="related">
+ <h3>Navigation</h3>
+ <ul>
+ <li class="right" style="margin-right: 10px">
+ <a href="../genindex.html" title="General Index"
+ >index</a></li>
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+ <a href="LangImpl6.html" title="6. Kaleidoscope: Extending the Language: User-defined Operators"
+ >next</a> |</li>
+ <li class="right" >
+ <a href="LangImpl4.html" title="4. Kaleidoscope: Adding JIT and Optimizer Support"
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