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getresult does not support nested aggregates.

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llvm-svn: 47396
This commit is contained in:
Devang Patel 2008-02-20 19:39:41 +00:00
parent df5f19c449
commit 4034343b67
1 changed files with 14 additions and 3 deletions
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17
lib/VMCore/Instructions.cpp
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@ -2719,10 +2719,21 @@ GetResultInst::GetResultInst(Value *Aggregate, unsigned Index,
bool GetResultInst::isValidOperands(const Value *Aggregate, unsigned Index) {
if (!Aggregate)
return false;
if (const StructType *STy = dyn_cast<StructType>(Aggregate->getType()))
if (Index < STy->getNumElements())
return true;
if (const StructType *STy = dyn_cast<StructType>(Aggregate->getType())) {
unsigned NumElements = STy->getNumElements();
if (Index >= NumElements)
return false;
// getresult aggregate value's element types are restricted to
// avoid nested aggregates.
for (unsigned i = 0; i < NumElements; ++i)
if (!STy->getElementType(i)->isFirstClassType())
return false;
// Otherwise, Aggregate is valid.
return true;
}
return false;
}