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[opaque pointer type] Constant Folding: Use GEPOperator to access the pointee source type rather than going through the first operand's pointer type

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@237274 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
David Blaikie 2015-05-13 18:35:29 +00:00
parent 115494b777
commit 428e9d7608
1 changed files with 2 additions and 2 deletions
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4
lib/IR/ConstantFold.cpp
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@ -632,8 +632,8 @@ Constant *llvm::ConstantFoldCastInstruction(unsigned opc, Constant *V,
if (ConstantExpr *CE = dyn_cast<ConstantExpr>(V))
if (CE->getOpcode() == Instruction::GetElementPtr &&
CE->getOperand(0)->isNullValue()) {
Type *Ty =
cast<PointerType>(CE->getOperand(0)->getType())->getElementType();
GEPOperator *GEPO = cast<GEPOperator>(CE);
Type *Ty = GEPO->getSourceElementType();
if (CE->getNumOperands() == 2) {
// Handle a sizeof-like expression.
Constant *Idx = CE->getOperand(1);