turned into unreachable.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73195
91177308-0d34-0410-b5e6-
96231b3b80d8
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))
--- /dev/null
+; RUN: llvm-as < %s | opt -instcombine | llvm-dis | grep store
+; PR4366
+
+define void @a() {
+ store i32 0, i32 addrspace(1)* null
+ ret void
+}