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Fix Transforms/InstCombine/2007-05-14-Crash.ll
llvm-svn: 37057
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@ -6454,16 +6454,25 @@ Instruction *InstCombiner::commonPointerCastTransforms(CastInst &CI) {
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while (Offset) {
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if (const StructType *STy = dyn_cast<StructType>(GEPIdxTy)) {
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const StructLayout *SL = TD->getStructLayout(STy);
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unsigned Elt = SL->getElementContainingOffset(Offset);
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NewIndices.push_back(ConstantInt::get(Type::Int32Ty, Elt));
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if (Offset < (int64_t)SL->getSizeInBytes()) {
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unsigned Elt = SL->getElementContainingOffset(Offset);
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NewIndices.push_back(ConstantInt::get(Type::Int32Ty, Elt));
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Offset -= SL->getElementOffset(Elt);
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GEPIdxTy = STy->getElementType(Elt);
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Offset -= SL->getElementOffset(Elt);
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GEPIdxTy = STy->getElementType(Elt);
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} else {
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// Otherwise, we can't index into this, bail out.
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Offset = 0;
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OrigBase = 0;
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}
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} else if (isa<ArrayType>(GEPIdxTy) || isa<VectorType>(GEPIdxTy)) {
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const SequentialType *STy = cast<SequentialType>(GEPIdxTy);
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uint64_t EltSize = TD->getTypeSize(STy->getElementType());
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NewIndices.push_back(ConstantInt::get(IntPtrTy, Offset/EltSize));
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Offset %= EltSize;
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if (uint64_t EltSize = TD->getTypeSize(STy->getElementType())) {
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NewIndices.push_back(ConstantInt::get(IntPtrTy,Offset/EltSize));
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Offset %= EltSize;
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} else {
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NewIndices.push_back(ConstantInt::get(IntPtrTy, 0));
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}
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GEPIdxTy = STy->getElementType();
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} else {
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// Otherwise, we can't index into this, bail out.
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