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<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Hi Mikhail,<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>You probably want to send this to cfe-dev – this mailing
list is just for the LLVM mid/backend and some of the frontend guys don’t
subscribe here.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Cheers,<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>James<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
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<p class=MsoNormal><b><span lang=EN-US style='font-size:10.0pt;font-family:
"Tahoma","sans-serif"'>From:</span></b><span lang=EN-US style='font-size:10.0pt;
font-family:"Tahoma","sans-serif"'> llvmdev-bounces@cs.uiuc.edu
[mailto:llvmdev-bounces@cs.uiuc.edu] <b>On Behalf Of </b>??????<br>
<b>Sent:</b> 06 March 2012 14:17<br>
<b>To:</b> llvmdev<br>
<b>Subject:</b> [LLVMdev] Work with CallSites<o:p></o:p></span></p>
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<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Hi.<o:p></o:p></p>
<div>
<p class=MsoNormal><o:p> </o:p></p>
</div>
<div>
<p class=MsoNormal>I have a test program:<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><o:p> </o:p></p>
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<blockquote style='margin-left:30.0pt;margin-right:0cm'>
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<div>
<p class=MsoNormal>class A {<o:p></o:p></p>
</div>
</div>
<div>
<p class=MsoNormal><span class=apple-tab-span>š </span>int A;<o:p></o:p></p>
</div>
<div>
<div>
<p class=MsoNormal>public:<o:p></o:p></p>
</div>
</div>
<div>
<p class=MsoNormal><span class=apple-tab-span>š </span>virtual void test ( int
x ) = 0;<o:p></o:p></p>
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<div>
<div>
<p class=MsoNormal>};<o:p></o:p></p>
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</div>
<div>
<div>
<p class=MsoNormal><o:p> </o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal>class B : public A {<o:p></o:p></p>
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<div>
<p class=MsoNormal><span class=apple-tab-span>š </span>int B;<o:p></o:p></p>
</div>
<div>
<div>
<p class=MsoNormal>public:<o:p></o:p></p>
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<div>
<p class=MsoNormal><span class=apple-tab-span>š </span>void test ( int x ) {};<o:p></o:p></p>
</div>
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<div>
<p class=MsoNormal>};<o:p></o:p></p>
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<div>
<p class=MsoNormal><o:p> </o:p></p>
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<div>
<div>
<p class=MsoNormal>int main() {<span class=apple-tab-span>ššššššš </span><o:p></o:p></p>
</div>
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<div>
<p class=MsoNormal><span class=apple-tab-span>š </span>A *a = new B();<span
class=apple-tab-span>ššššššššš </span><o:p></o:p></p>
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<p class=MsoNormal><span class=apple-tab-span>š </span>a->test(1);<o:p></o:p></p>
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<div>
<p class=MsoNormal>}<o:p></o:p></p>
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</div>
</blockquote>
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<p class=MsoNormal><o:p> </o:p></p>
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<div>
<p class=MsoNormal>We have call site CS: "a->test(1);". CS.getCalledFunction()
- return NULL, so we can say that this call site is virtual. My optimization
determines, that in this call site B::test() should be called. <o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>I've tried to use CSn.setCalledFunction(F) (where F is
B::test()), but I've got this:<o:p></o:p></p>
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<p class=MsoNormal><span class=apple-tab-span>š </span><o:p></o:p></p>
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<p class=MsoNormal>Check function __cxa_pure_virtual<o:p></o:p></p>
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<div>
<div>
<p class=MsoNormal>Call parameter type does not match function signature!<o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal> %6 = load %class.A** %a, align 4<o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal> %class.B* call void @_ZN1B4testEi(%class.A* %6,
i32 1)<o:p></o:p></p>
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</blockquote>
<div>
<p class=MsoNormal><o:p> </o:p></p>
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<div>
<p class=MsoNormal>Ok! I've tried to change the first %class.A %6 to %class.B
%6 by "FirstArgumentOfCS->get()->mutateType(FunctionFirstArgement->getType());",
but in this case I've got this:<o:p></o:p></p>
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<p class=MsoNormal><o:p> </o:p></p>
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<blockquote style='margin-left:30.0pt;margin-right:0cm'>
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<p class=MsoNormal><span class=apple-tab-span>š </span><o:p></o:p></p>
</div>
<p class=MsoNormal>Check function __cxa_pure_virtual<o:p></o:p></p>
</div>
<div>
<div>
<p class=MsoNormal>Load result type does not match pointer operand type!<o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal> %6 = load %class.A** %a, align 4<o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal> %class.A*Instruction does not dominate all uses!<o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal> %6 = load %class.A** %a, align 4<o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal> %7 = bitcast %class.B* %6 to void (%class.A*, i32)***<o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal>Instruction does not dominate all uses!<o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal> %7 = bitcast %class.B* %6 to void (%class.A*, i32)***<o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal> %8 = load void (%class.A*, i32)*** %7<o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal>Instruction does not dominate all uses!<o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal> %8 = load void (%class.A*, i32)*** %7<o:p></o:p></p>
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<div>
<p class=MsoNormal> %9 = getelementptr inbounds void (%class.A*, i32)**
%8, i64 0<o:p></o:p></p>
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</div>
<div>
<div>
<p class=MsoNormal>Instruction does not dominate all uses!<o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal> %9 = getelementptr inbounds void (%class.A*, i32)**
%8, i64 0<o:p></o:p></p>
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</div>
<div>
<div>
<p class=MsoNormal> %10 = load void (%class.A*, i32)** %9<o:p></o:p></p>
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</div>
<div>
<div>
<p class=MsoNormal>Instruction does not dominate all uses!<o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal> %6 = load %class.A** %a, align 4<o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal> call void @_ZN1B4testEi(%class.B* %6, i32 1)<o:p></o:p></p>
</div>
</div>
</blockquote>
<div>
<p class=MsoNormal><o:p> </o:p></p>
</div>
<div>
<p class=MsoNormal>Can you tell me how correctly I can
use CSn.setCalledFunction(F) in my case. Thanks!<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><o:p> </o:p></p>
</div>
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<p class=MsoNormal><o:p> </o:p></p>
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<p class=MsoNormal>Yours sincerely,<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>Kadysev Mikhail<o:p></o:p></p>
</div>
</div>
</div>
</div>
<p class=MsoNormal><o:p> </o:p></p>
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