AtomicExpand: Don't crash on non-0 alloca
This now produces garbage on AMDGPU with a call to an nonexistent,
anonymous libcall but won't assert.
llvm-svn: 363022
diff --git a/llvm/lib/CodeGen/AtomicExpandPass.cpp b/llvm/lib/CodeGen/AtomicExpandPass.cpp
index 7aca67a..dc7eaf6 100644
--- a/llvm/lib/CodeGen/AtomicExpandPass.cpp
+++ b/llvm/lib/CodeGen/AtomicExpandPass.cpp
@@ -1712,8 +1712,11 @@
if (CASExpected) {
AllocaCASExpected = AllocaBuilder.CreateAlloca(CASExpected->getType());
AllocaCASExpected->setAlignment(AllocaAlignment);
+ unsigned AllocaAS = AllocaCASExpected->getType()->getPointerAddressSpace();
+
AllocaCASExpected_i8 =
- Builder.CreateBitCast(AllocaCASExpected, Type::getInt8PtrTy(Ctx));
+ Builder.CreateBitCast(AllocaCASExpected,
+ Type::getInt8PtrTy(Ctx, AllocaAS));
Builder.CreateLifetimeStart(AllocaCASExpected_i8, SizeVal64);
Builder.CreateAlignedStore(CASExpected, AllocaCASExpected, AllocaAlignment);
Args.push_back(AllocaCASExpected_i8);
@@ -1740,8 +1743,9 @@
if (!CASExpected && HasResult && !UseSizedLibcall) {
AllocaResult = AllocaBuilder.CreateAlloca(I->getType());
AllocaResult->setAlignment(AllocaAlignment);
+ unsigned AllocaAS = AllocaResult->getType()->getPointerAddressSpace();
AllocaResult_i8 =
- Builder.CreateBitCast(AllocaResult, Type::getInt8PtrTy(Ctx));
+ Builder.CreateBitCast(AllocaResult, Type::getInt8PtrTy(Ctx, AllocaAS));
Builder.CreateLifetimeStart(AllocaResult_i8, SizeVal64);
Args.push_back(AllocaResult_i8);
}