diff options
| -rw-r--r-- | llvm/lib/Transforms/Scalar/InstructionCombining.cpp | 3 | ||||
| -rw-r--r-- | llvm/test/Transforms/InstCombine/2009-06-11-StoreAddrSpace.ll | 7 |
2 files changed, 9 insertions, 1 deletions
diff --git a/llvm/lib/Transforms/Scalar/InstructionCombining.cpp b/llvm/lib/Transforms/Scalar/InstructionCombining.cpp index 6d2ff0e3e53..03a7317138a 100644 --- a/llvm/lib/Transforms/Scalar/InstructionCombining.cpp +++ b/llvm/lib/Transforms/Scalar/InstructionCombining.cpp @@ -11824,7 +11824,8 @@ Instruction *InstCombiner::visitStoreInst(StoreInst &SI) { if (SI.isVolatile()) return 0; // Don't hack volatile stores. // store X, null -> turns into 'unreachable' in SimplifyCFG - if (isa<ConstantPointerNull>(Ptr)) { + if (isa<ConstantPointerNull>(Ptr) && + cast<PointerType>(Ptr->getType())->getAddressSpace() == 0) { if (!isa<UndefValue>(Val)) { SI.setOperand(0, UndefValue::get(Val->getType())); if (Instruction *U = dyn_cast<Instruction>(Val)) diff --git a/llvm/test/Transforms/InstCombine/2009-06-11-StoreAddrSpace.ll b/llvm/test/Transforms/InstCombine/2009-06-11-StoreAddrSpace.ll new file mode 100644 index 00000000000..e86fed3c364 --- /dev/null +++ b/llvm/test/Transforms/InstCombine/2009-06-11-StoreAddrSpace.ll @@ -0,0 +1,7 @@ +; RUN: llvm-as < %s | opt -instcombine | llvm-dis | grep store +; PR4366 + +define void @a() { + store i32 0, i32 addrspace(1)* null + ret void +} |
