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void* is represented as pointer to empty struct {}.

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Thus we need to check whether the struct is empty before trying to index into
it. This fixes PR3381.

llvm-svn: 62918
This commit is contained in:
Torok Edwin 2009-01-24 11:30:49 +00:00
parent 78b6a961bb
commit 726354d4ce
1 changed files with 2 additions and 0 deletions
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2
lib/Transforms/Scalar/InstructionCombining.cpp
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@ -11170,6 +11170,8 @@ static Instruction *InstCombineStoreToCast(InstCombiner &IC, StoreInst &SI) {
while (1) {
if (const StructType *STy = dyn_cast<StructType>(SrcPTy)) {
if (!STy->getNumElements()) /* Void is represented as {} */
break;
NewGEPIndices.push_back(Zero);
SrcPTy = STy->getElementType(0);
} else if (const ArrayType *ATy = dyn_cast<ArrayType>(SrcPTy)) {