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| author | Matt Arsenault <Matthew.Arsenault@amd.com> | 2013-10-30 19:05:41 +0000 |
|---|---|---|
| committer | Matt Arsenault <Matthew.Arsenault@amd.com> | 2013-10-30 19:05:41 +0000 |
| commit | b7ff48e3744a3a9800c65afddfc004977b8102b5 (patch) | |
| tree | 6431092b9192f4bda30a534ec3c09df2270ae70b /lib/Transforms | |
| parent | 4ca9a2a0adf01ae1aaad2c7fa499501b58183991 (diff) | |
| download | external_llvm-b7ff48e3744a3a9800c65afddfc004977b8102b5.zip external_llvm-b7ff48e3744a3a9800c65afddfc004977b8102b5.tar.gz external_llvm-b7ff48e3744a3a9800c65afddfc004977b8102b5.tar.bz2 | |
Fix GVN creating bitcast between address spaces
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193710 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Transforms')
| -rw-r--r-- | lib/Transforms/Scalar/GVN.cpp | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/lib/Transforms/Scalar/GVN.cpp b/lib/Transforms/Scalar/GVN.cpp index aa4e185..731a6d0 100644 --- a/lib/Transforms/Scalar/GVN.cpp +++ b/lib/Transforms/Scalar/GVN.cpp @@ -1088,14 +1088,15 @@ static int AnalyzeLoadFromClobberingMemInst(Type *LoadTy, Value *LoadPtr, if (Offset == -1) return Offset; + unsigned AS = Src->getType()->getPointerAddressSpace(); // Otherwise, see if we can constant fold a load from the constant with the // offset applied as appropriate. Src = ConstantExpr::getBitCast(Src, - llvm::Type::getInt8PtrTy(Src->getContext())); + Type::getInt8PtrTy(Src->getContext(), AS)); Constant *OffsetCst = ConstantInt::get(Type::getInt64Ty(Src->getContext()), (unsigned)Offset); Src = ConstantExpr::getGetElementPtr(Src, OffsetCst); - Src = ConstantExpr::getBitCast(Src, PointerType::getUnqual(LoadTy)); + Src = ConstantExpr::getBitCast(Src, PointerType::get(LoadTy, AS)); if (ConstantFoldLoadFromConstPtr(Src, &TD)) return Offset; return -1; @@ -1247,15 +1248,16 @@ static Value *GetMemInstValueForLoad(MemIntrinsic *SrcInst, unsigned Offset, // Otherwise, this is a memcpy/memmove from a constant global. MemTransferInst *MTI = cast<MemTransferInst>(SrcInst); Constant *Src = cast<Constant>(MTI->getSource()); + unsigned AS = Src->getType()->getPointerAddressSpace(); // Otherwise, see if we can constant fold a load from the constant with the // offset applied as appropriate. Src = ConstantExpr::getBitCast(Src, - llvm::Type::getInt8PtrTy(Src->getContext())); + Type::getInt8PtrTy(Src->getContext(), AS)); Constant *OffsetCst = - ConstantInt::get(Type::getInt64Ty(Src->getContext()), (unsigned)Offset); + ConstantInt::get(Type::getInt64Ty(Src->getContext()), (unsigned)Offset); Src = ConstantExpr::getGetElementPtr(Src, OffsetCst); - Src = ConstantExpr::getBitCast(Src, PointerType::getUnqual(LoadTy)); + Src = ConstantExpr::getBitCast(Src, PointerType::get(LoadTy, AS)); return ConstantFoldLoadFromConstPtr(Src, &TD); } |