<html><head><meta http-equiv="Content-Type" content="text/html charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><div class="">Hi,</div><br class=""><div><blockquote type="cite" class=""><div class="">On Dec 16, 2015, at 8:02 AM, Iulia Stirb via llvm-dev <<a href="mailto:llvm-dev@lists.llvm.org" class="">llvm-dev@lists.llvm.org</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div class=""><div style="background-color: rgb(255, 255, 255); font-family: verdana, helvetica, sans-serif; font-size: 24px;" class=""><div id="yui_3_16_0_1_1450279229586_16878" class="">Hi,</div><div id="yui_3_16_0_1_1450279229586_16878" class=""><br class=""></div><div id="yui_3_16_0_1_1450279229586_16878" dir="ltr" class="">I have read the steps of code generation from here: <a href="http://llvm.org/docs/CodeGenerator.html#the-high-level-design-of-the-code-generator" id="yui_3_16_0_1_1450279229586_16908" class="">The LLVM Target-Independent Code Generator — LLVM 3.8 documentation</a></div><div style="width:450px; 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background-color: #e5e5e5; font-size: 0pt; border-collapse: collapse;"><div class="link-enhancr-element" style="width: 1px; background-color: #e5e5e5; font-size: 1pt;"> </div></td><td rowspan="5" class="link-enhancr-element" style="width: 14px; background-color: #ffffff; font-size: 0pt; border-collapse: collapse;" id="yui_3_16_0_1_1450279229586_17025"><div class="link-enhancr-element" style="width: 14px; background-color: #ffffff; font-size: 14pt;"> </div></td><td colspan="2" class="link-enhancr-element" style="height: 6px; background-color: #ffffff; font-size: 0pt; border-collapse: collapse;" id="yui_3_16_0_1_1450279229586_16995"><div class="link-enhancr-element" style="height: 6px; background-color: #ffffff; font-size: 6pt;" id="yui_3_16_0_1_1450279229586_16994"> </div></td><td rowspan="5" class="link-enhancr-element" style="width: 20px; background-color: #ffffff; font-size: 0pt; border-collapse: collapse;"><div class="link-enhancr-element" style="width: 20px; background-color: #ffffff; font-size: 20pt;"> </div></td><td class="link-enhancr-element" rowspan="5" width="1" style="width: 1px; background-color: #e5e5e5; font-size: 1pt; border-collapse: collapse;"><div class="link-enhancr-element" style="width: 1px; background-color: #e5e5e5; font-size: 1pt;"> </div></td></tr><tr id="yui_3_16_0_1_1450279229586_16975" class=""><td class="link-enhancr-element" colspan="2" style="width: 100%; vertical-align: middle; font-family: 'Georgia', 'Times', 'Times New Roman', 'serif';" id="yui_3_16_0_1_1450279229586_16974"><div class="link-enhancr-text-part link-enhancr-element" style="line-height:16.5px; background-color: #ffffff; height: 135px; width: 245px;" id="yui_3_16_0_1_1450279229586_16973"><div class="link-enhancr-element" style="word-wrap: break-word; word-break: break-all;" id="yui_3_16_0_1_1450279229586_16972"><span class=" icon-shrink link-enhancr-element icon link-enhancr-toggle"></span><span class="icon-close link-enhancr-element icon link-enhancr-delete"></span><a href="http://llvm.org/docs/CodeGenerator.html#the-high-level-design-of-the-code-generator" class="link-enhancr-element link-enhancr-card-urlWrapper" style="line-height: 100%; font-size: 18px; display: block; text-decoration: none !important;" id="yui_3_16_0_1_1450279229586_16993"><span class="link-enhancr-card-title link-enhancr-element" style="margin: 0px 0px 3px; font-weight: normal; font-size: 18px; line-height: 21px; max-height: 43px; display: inline-block; overflow: hidden !important;" id="yui_3_16_0_1_1450279229586_16992">The LLVM Target-Independent Code Generator — LLVM 3...</span></a><div style="font-size: 13px; line-height: 20px; color: #999999; max-height: 81px; font-family: 'Georgia', 'Times', 'Times New Roman', 'serif';overflow: hidden;" class="link-enhancr-card-description link-enhancr-element" id="yui_3_16_0_1_1450279229586_16971">Instruction Selection Instruction Selection is the process of translating LLVM code presented to the
code generator into target-specific machine instructions. </div></div></div></td></tr><tr class=""><td colspan="2" class="link-enhancr-element" style="height: 4px; background-color: #ffffff; font-size: 0pt; border-collapse: collapse;"><div class="link-enhancr-element" style="height: 4px; background-color: #ffffff; font-size: 4pt;"></div></td></tr><tr id="yui_3_16_0_1_1450279229586_16981" class=""><td class="link-enhancr-element" style="vertical-align: middle; font-family: 'Arial', 'Helvetica Neue', 'Helvetica', 'sans-serif';" id="yui_3_16_0_1_1450279229586_16980"><div class="link-enhancr-element" style="font-size: 0pt;" id="yui_3_16_0_1_1450279229586_16979"><a href="http://llvm.org/docs/CodeGenerator.html#the-high-level-design-of-the-code-generator" class="link-enhancr-element link-enhancr-card-url" style="text-decoration: none !important; cursor: pointer !important;" target="_blank"><span class="link-enhancr-element link-enhancr-view-on" style="display: inline-block; line-height: 11px; max-width: 145px; min-width: 85px; overflow: hidden; max-height: 13px; word-break: break-all;" id="yui_3_16_0_1_1450279229586_16925"><span class="link-enhancr-mobile-no-resize link-enhancr-element" style="vertical-align:middle; font-size: 9px; line-height: 11px; color: #999999; -moz-text-size-adjust: none; -ms-text-size-adjust: none; -webkit-text-size-adjust:none; text-size-adjust:none;">View on <span style="font-weight: bold" class="link-enhancr-view-on-domain">llvm.org</span></span></span></a></div></td><td class="link-enhancr-element" style="vertical-align: middle; width: 100px; font-family: 'Arial', 'Helvetica Neue', 'Helvetica', 'sans-serif';" id="yui_3_16_0_1_1450279229586_17000"><div class="link-enhancr-element link-enhancr-preview-wrapper" style="max-width: 100px; min-width: 80px; overflow: hidden; text-align: right; line-height: 11px; max-height: 13px; font-size: 0pt;" id="yui_3_16_0_1_1450279229586_16999"><span class="link-enhancr-mobile-no-resize link-enhancr-element link-enhancr-preview-by" style="vertical-align:middle; font-size: 9px; line-height: 11px; color: #999999; -moz-text-size-adjust: none; -ms-text-size-adjust: none; -webkit-text-size-adjust:none; text-size-adjust:none;">Preview by Yahoo</span></div></td></tr><tr id="yui_3_16_0_1_1450279229586_16985" class=""><td colspan="2" class="link-enhancr-element" style="height: 9px; background-color: #ffffff; font-size: 0pt; border-collapse: collapse;" id="yui_3_16_0_1_1450279229586_16984"><div class="link-enhancr-element" style="height: 9px; background-color: #ffffff; font-size: 9pt;" id="yui_3_16_0_1_1450279229586_16983"></div></td></tr><tr class="link-enhancr-element" id="yui_3_16_0_1_1450279229586_16989"><td class="link-enhancr-element" colspan="8" style="height: 1px; background-color: #e5e5e5; font-size: 1px; border-collapse: collapse;" id="yui_3_16_0_1_1450279229586_16988"><div class="link-enhancr-element" style="height: 1px; background-color: #e5e5e5; font-size: 1px; line-height:0px" id="yui_3_16_0_1_1450279229586_16987"> </div></td></tr></tbody></table></div><div id="yui_3_16_0_1_1450279229586_16878" dir="ltr" class=""><br class=""></div><div id="yui_3_16_0_1_1450279229586_16878" dir="ltr" class="">Could you please confirm that on actual implementation of LLVM's code generator, the instruction scheduling is done before register allocation?</div></div></div></div></blockquote><div><br class=""></div><div>This is correct.</div><div><br class=""></div><div>Cheers,</div><div>Quentin</div><br class=""><blockquote type="cite" class=""><div class=""><div class=""><div style="background-color: rgb(255, 255, 255); font-family: verdana, helvetica, sans-serif; font-size: 24px;" class=""><div id="yui_3_16_0_1_1450279229586_16878" dir="ltr" class=""><br class=""></div><div id="yui_3_16_0_1_1450279229586_16878" dir="ltr" class="">Many thanks,</div><div id="yui_3_16_0_1_1450279229586_16878" dir="ltr" class="">Iulia Stirb</div></div></div>_______________________________________________<br class="">LLVM Developers mailing list<br class=""><a href="mailto:llvm-dev@lists.llvm.org" class="">llvm-dev@lists.llvm.org</a><br class="">http://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-dev<br class=""></div></blockquote></div><br class=""></body></html>