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author | Matt Arsenault <Matthew.Arsenault@amd.com> | 2013-08-21 19:53:10 +0000 |
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committer | Matt Arsenault <Matthew.Arsenault@amd.com> | 2013-08-21 19:53:10 +0000 |
commit | 52c7d8e4ebe3be0890880026e174fd2fe6544220 (patch) | |
tree | 1bdda2be540947984130559a5235f0ee6df87474 /lib/Transforms/InstCombine/InstCombineCompares.cpp | |
parent | b2fdd9ee45e72eeca011a7f24c8d0ed44aba28a1 (diff) | |
download | external_llvm-52c7d8e4ebe3be0890880026e174fd2fe6544220.zip external_llvm-52c7d8e4ebe3be0890880026e174fd2fe6544220.tar.gz external_llvm-52c7d8e4ebe3be0890880026e174fd2fe6544220.tar.bz2 |
Teach InstCombine about address spaces
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188926 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Transforms/InstCombine/InstCombineCompares.cpp')
-rw-r--r-- | lib/Transforms/InstCombine/InstCombineCompares.cpp | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/lib/Transforms/InstCombine/InstCombineCompares.cpp b/lib/Transforms/InstCombine/InstCombineCompares.cpp index 93466ea..18a0872 100644 --- a/lib/Transforms/InstCombine/InstCombineCompares.cpp +++ b/lib/Transforms/InstCombine/InstCombineCompares.cpp @@ -563,16 +563,18 @@ static Value *EvaluateGEPOffsetExpression(User *GEP, InstCombiner &IC) { } } + + // Okay, we know we have a single variable index, which must be a // pointer/array/vector index. If there is no offset, life is simple, return // the index. - unsigned IntPtrWidth = TD.getPointerSizeInBits(); + Type *IntPtrTy = TD.getIntPtrType(GEP->getOperand(0)->getType()); + unsigned IntPtrWidth = IntPtrTy->getIntegerBitWidth(); if (Offset == 0) { // Cast to intptrty in case a truncation occurs. If an extension is needed, // we don't need to bother extending: the extension won't affect where the // computation crosses zero. if (VariableIdx->getType()->getPrimitiveSizeInBits() > IntPtrWidth) { - Type *IntPtrTy = TD.getIntPtrType(VariableIdx->getContext()); VariableIdx = IC.Builder->CreateTrunc(VariableIdx, IntPtrTy); } return VariableIdx; @@ -594,7 +596,6 @@ static Value *EvaluateGEPOffsetExpression(User *GEP, InstCombiner &IC) { return 0; // Okay, we can do this evaluation. Start by converting the index to intptr. - Type *IntPtrTy = TD.getIntPtrType(VariableIdx->getContext()); if (VariableIdx->getType() != IntPtrTy) VariableIdx = IC.Builder->CreateIntCast(VariableIdx, IntPtrTy, true /*Signed*/); @@ -2478,7 +2479,7 @@ Instruction *InstCombiner::visitICmpInst(ICmpInst &I) { case Instruction::IntToPtr: // icmp pred inttoptr(X), null -> icmp pred X, 0 if (RHSC->isNullValue() && TD && - TD->getIntPtrType(RHSC->getContext()) == + TD->getIntPtrType(RHSC->getType()) == LHSI->getOperand(0)->getType()) return new ICmpInst(I.getPredicate(), LHSI->getOperand(0), Constant::getNullValue(LHSI->getOperand(0)->getType())); |