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An sret parameter is required to be the first parameter, so there's no need to loop

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over all the parameters of the callee looking for it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47309 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Owen Anderson 2008-02-19 03:15:29 +00:00
parent 7ad3920e31
commit c0755a6f98
1 changed files with 3 additions and 8 deletions
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11
lib/Transforms/Scalar/GVN.cpp
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@ -1089,15 +1089,10 @@ bool GVN::performReturnSlotOptzn(MemCpyInst* cpy, CallInst* C,
// If all checks passed, then we can perform the transformation
CallSite CS = CallSite::get(C);
for (unsigned i = 0; i < CS.arg_size(); ++i) {
if (CS.paramHasAttr(i+1, ParamAttr::StructRet)) {
if (CS.getArgument(i)->getType() != cpyDest->getType())
return false;
if (CS.getArgument(0)->getType() != cpyDest->getType())
return false;
CS.setArgument(i, cpyDest);
break;
}
}
CS.setArgument(0, cpyDest);
MemoryDependenceAnalysis& MD = getAnalysis<MemoryDependenceAnalysis>();
MD.dropInstruction(C);