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author | Micah Villmow <villmow@gmail.com> | 2012-10-11 17:21:41 +0000 |
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committer | Micah Villmow <villmow@gmail.com> | 2012-10-11 17:21:41 +0000 |
commit | f3840d2c16a4ec4c879a8ded402835746de380f8 (patch) | |
tree | 705fb3f3aea368f4880d2d672312e6b783528718 /lib/Transforms/InstCombine | |
parent | ebba49395c189364c9ef77fb4c432856330ceca1 (diff) | |
download | llvm-f3840d2c16a4ec4c879a8ded402835746de380f8.tar.gz llvm-f3840d2c16a4ec4c879a8ded402835746de380f8.tar.bz2 llvm-f3840d2c16a4ec4c879a8ded402835746de380f8.tar.xz |
Add in the first iteration of support for llvm/clang/lldb to allow variable per address space pointer sizes to be optimized correctly.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165726 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Transforms/InstCombine')
-rw-r--r-- | lib/Transforms/InstCombine/InstCombineCasts.cpp | 10 | ||||
-rw-r--r-- | lib/Transforms/InstCombine/InstCombineCompares.cpp | 9 |
2 files changed, 12 insertions, 7 deletions
diff --git a/lib/Transforms/InstCombine/InstCombineCasts.cpp b/lib/Transforms/InstCombine/InstCombineCasts.cpp index b59210a9df..f3f3f8f585 100644 --- a/lib/Transforms/InstCombine/InstCombineCasts.cpp +++ b/lib/Transforms/InstCombine/InstCombineCasts.cpp @@ -1293,15 +1293,16 @@ Instruction *InstCombiner::visitIntToPtr(IntToPtrInst &CI) { // If the source integer type is not the intptr_t type for this target, do a // trunc or zext to the intptr_t type, then inttoptr of it. This allows the // cast to be exposed to other transforms. + unsigned AS = CI.getAddressSpace(); if (TD) { if (CI.getOperand(0)->getType()->getScalarSizeInBits() > - TD->getPointerSizeInBits()) { + TD->getPointerSizeInBits(AS)) { Value *P = Builder->CreateTrunc(CI.getOperand(0), TD->getIntPtrType(CI.getContext())); return new IntToPtrInst(P, CI.getType()); } if (CI.getOperand(0)->getType()->getScalarSizeInBits() < - TD->getPointerSizeInBits()) { + TD->getPointerSizeInBits(AS)) { Value *P = Builder->CreateZExt(CI.getOperand(0), TD->getIntPtrType(CI.getContext())); return new IntToPtrInst(P, CI.getType()); @@ -1368,13 +1369,14 @@ Instruction *InstCombiner::visitPtrToInt(PtrToIntInst &CI) { // If the destination integer type is not the intptr_t type for this target, // do a ptrtoint to intptr_t then do a trunc or zext. This allows the cast // to be exposed to other transforms. + unsigned AS = CI.getPointerAddressSpace(); if (TD) { - if (CI.getType()->getScalarSizeInBits() < TD->getPointerSizeInBits()) { + if (CI.getType()->getScalarSizeInBits() < TD->getPointerSizeInBits(AS)) { Value *P = Builder->CreatePtrToInt(CI.getOperand(0), TD->getIntPtrType(CI.getContext())); return new TruncInst(P, CI.getType()); } - if (CI.getType()->getScalarSizeInBits() > TD->getPointerSizeInBits()) { + if (CI.getType()->getScalarSizeInBits() > TD->getPointerSizeInBits(AS)) { Value *P = Builder->CreatePtrToInt(CI.getOperand(0), TD->getIntPtrType(CI.getContext())); return new ZExtInst(P, CI.getType()); diff --git a/lib/Transforms/InstCombine/InstCombineCompares.cpp b/lib/Transforms/InstCombine/InstCombineCompares.cpp index 4d5ffddc4c..e3e5ddae80 100644 --- a/lib/Transforms/InstCombine/InstCombineCompares.cpp +++ b/lib/Transforms/InstCombine/InstCombineCompares.cpp @@ -365,11 +365,12 @@ FoldCmpLoadFromIndexedGlobal(GetElementPtrInst *GEP, GlobalVariable *GV, // order the state machines in complexity of the generated code. Value *Idx = GEP->getOperand(2); + unsigned AS = GEP->getPointerAddressSpace(); // If the index is larger than the pointer size of the target, truncate the // index down like the GEP would do implicitly. We don't have to do this for // an inbounds GEP because the index can't be out of range. if (!GEP->isInBounds() && - Idx->getType()->getPrimitiveSizeInBits() > TD->getPointerSizeInBits()) + Idx->getType()->getPrimitiveSizeInBits() > TD->getPointerSizeInBits(AS)) Idx = Builder->CreateTrunc(Idx, TD->getIntPtrType(Idx->getContext())); // If the comparison is only true for one or two elements, emit direct @@ -528,10 +529,11 @@ static Value *EvaluateGEPOffsetExpression(User *GEP, InstCombiner &IC) { } } + unsigned AS = cast<GetElementPtrInst>(GEP)->getPointerAddressSpace(); // 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(); + unsigned IntPtrWidth = TD.getPointerSizeInBits(AS); 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 @@ -1552,7 +1554,8 @@ Instruction *InstCombiner::visitICmpInstWithCastAndCast(ICmpInst &ICI) { // Turn icmp (ptrtoint x), (ptrtoint/c) into a compare of the input if the // integer type is the same size as the pointer type. if (TD && LHSCI->getOpcode() == Instruction::PtrToInt && - TD->getPointerSizeInBits() == + TD->getPointerSizeInBits( + cast<PtrToIntInst>(LHSCI)->getPointerAddressSpace()) == cast<IntegerType>(DestTy)->getBitWidth()) { Value *RHSOp = 0; if (Constant *RHSC = dyn_cast<Constant>(ICI.getOperand(1))) { |