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Add hasByValArgument() to test if a call instruction has byval argument(s).

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45913 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Evan Cheng
2008-01-12 18:57:32 +00:00
parent 92938b7145
commit f4a5498ab4
2 changed files with 14 additions and 0 deletions
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11
lib/VMCore/Instructions.cpp
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@@ -404,6 +404,17 @@ bool CallInst::isStructReturn() const {
return paramHasAttr(1, ParamAttr::StructRet);
}
/// @brief Determine if any call argument is an aggregate passed by value.
bool CallInst::hasByValArgument() const {
const Value *Callee = getCalledValue();
const PointerType *CalleeTy = cast<PointerType>(Callee->getType());
const FunctionType *FTy = cast<FunctionType>(CalleeTy->getElementType());
for (unsigned i = 1, e = FTy->getNumParams()+1; i != e; ++i)
if (paramHasAttr(i, ParamAttr::ByVal))
return true;
return false;
}
void CallInst::setDoesNotThrow(bool doesNotThrow) {
const ParamAttrsList *PAL = getParamAttrs();
if (doesNotThrow)