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Do not overrun iterators. This fixes a 176.gcc crash
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19541 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -2104,10 +2104,9 @@ static Value *EmitGEPOffset(User *GEP, Instruction &I, InstCombiner &IC) {
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uint64_t PtrSizeMask = ~0ULL;
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PtrSizeMask >>= 64-(TD.getPointerSize()*8);
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++GTI; // Measure type stepping over.
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for (unsigned i = 1, e = GEP->getNumOperands(); i != e; ++i, ++GTI) {
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Value *Op = GEP->getOperand(i);
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uint64_t Size = TD.getTypeSize(*GTI) & PtrSizeMask;
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uint64_t Size = TD.getTypeSize(GTI.getIndexedType()) & PtrSizeMask;
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Constant *Scale = ConstantExpr::getCast(ConstantUInt::get(UIntPtrTy, Size),
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SIntPtrTy);
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if (Constant *OpC = dyn_cast<Constant>(Op)) {
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