[llvm-commits] [llvm] r48650 - /llvm/trunk/docs/LangRef.html
Chris Lattner
sabre at nondot.org
Fri Mar 21 10:20:53 PDT 2008
Author: lattner
Date: Fri Mar 21 12:20:51 2008
New Revision: 48650
URL: http://llvm.org/viewvc/llvm-project?rev=48650&view=rev
Log:
cleanups for the getresult section.
Modified:
llvm/trunk/docs/LangRef.html
Modified: llvm/trunk/docs/LangRef.html
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/docs/LangRef.html?rev=48650&r1=48649&r2=48650&view=diff
==============================================================================
--- llvm/trunk/docs/LangRef.html (original)
+++ llvm/trunk/docs/LangRef.html Fri Mar 21 12:20:51 2008
@@ -3899,24 +3899,27 @@
<h5>Syntax:</h5>
<pre>
- <resultval> = getresult <type> <retval>, <index>
+ <resultval> = getresult <type> <retval>, <index>
</pre>
+
<h5>Overview:</h5>
<p> The '<tt>getresult</tt>' instruction is used to extract individual values
-from multiple values returned by a '<tt><a href="#i_call">call</a></tt>'
-or '<tt><a href="#i_invoke">invoke</a></tt>' instruction.
+from a '<tt><a href="#i_call">call</a></tt>'
+or '<tt><a href="#i_invoke">invoke</a></tt>' instruction that returns multiple
+results.</p>
<h5>Arguments:</h5>
-The '<tt>getresult</tt>' instruction takes a return value as first argument.
-The value must have <a href="#t_struct">structure type</a>. The second argument
-is an unsigned index value.
+<p>The '<tt>getresult</tt>' instruction takes a call or invoke value as its
+first argument. The value must have <a href="#t_struct">structure type</a>.
+The second argument is an unsigned index value which must be in range for
+the number of values returned by the call.</p>
<h5>Semantics:</h5>
-The '<tt>getresult</tt>' instruction extracts the element identified by
-'<tt>index</tt>' from the aggregate value.
+<p>The '<tt>getresult</tt>' instruction extracts the element identified by
+'<tt>index</tt>' from the aggregate value.</p>
<h5>Example:</h5>
@@ -3924,8 +3927,8 @@
%struct.A = type { i32, i8 }
%r = call %struct.A @foo()
- %gr = getresult %struct.A %r, 0
- %gr1 = getresult %struct.A %r, 1
+ %gr = getresult %struct.A %r, 0 <i>; yields i32:%gr</i>
+ %gr1 = getresult %struct.A %r, 1 <i>; yields i8:%gr1</i>
add i32 %gr, 42
add i8 %gr1, 41
</pre>
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