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When folding constant expr gep's, don't force the use of long indices.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14658 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2004-07-07 04:45:13 +00:00
parent 5171eb5283
commit d340867964
1 changed files with 6 additions and 3 deletions
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9
lib/VMCore/ConstantFold.cpp
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@ -993,11 +993,14 @@ Constant *llvm::ConstantFoldGetElementPtr(const Constant *C,
// Add the last index of the source with the first index of the new GEP.
// Make sure to handle the case when they are actually different types.
Constant *Combined = CE->getOperand(CE->getNumOperands()-1);
if (!IdxList[0]->isNullValue()) // Otherwise it must be an array
if (!IdxList[0]->isNullValue()) { // Otherwise it must be an array
const Type *IdxTy = Combined->getType();
if (IdxTy != IdxList[0]->getType()) IdxTy = Type::LongTy;
Combined =
ConstantExpr::get(Instruction::Add,
ConstantExpr::getCast(IdxList[0], Type::LongTy),
ConstantExpr::getCast(Combined, Type::LongTy));
ConstantExpr::getCast(IdxList[0], IdxTy),
ConstantExpr::getCast(Combined, IdxTy));
}
NewIndices.push_back(Combined);
NewIndices.insert(NewIndices.end(), IdxList.begin()+1, IdxList.end());