diff options
Diffstat (limited to 'llvm/test/CodeGen/AMDGPU/private-memory-atomics.ll')
| -rw-r--r-- | llvm/test/CodeGen/AMDGPU/private-memory-atomics.ll | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/llvm/test/CodeGen/AMDGPU/private-memory-atomics.ll b/llvm/test/CodeGen/AMDGPU/private-memory-atomics.ll new file mode 100644 index 00000000000..a008ac98a43 --- /dev/null +++ b/llvm/test/CodeGen/AMDGPU/private-memory-atomics.ll @@ -0,0 +1,32 @@ +; RUN: llc -verify-machineinstrs -march=amdgcn -mcpu=SI < %s +; RUN: llc -verify-machineinstrs -march=amdgcn -mcpu=tonga < %s + +; This works because promote allocas pass replaces these with LDS atomics. + +; Private atomics have no real use, but at least shouldn't crash on it. +define void @atomicrmw_private(i32 addrspace(1)* %out, i32 %in) nounwind { +entry: + %tmp = alloca [2 x i32] + %tmp1 = getelementptr [2 x i32], [2 x i32]* %tmp, i32 0, i32 0 + %tmp2 = getelementptr [2 x i32], [2 x i32]* %tmp, i32 0, i32 1 + store i32 0, i32* %tmp1 + store i32 1, i32* %tmp2 + %tmp3 = getelementptr [2 x i32], [2 x i32]* %tmp, i32 0, i32 %in + %tmp4 = atomicrmw add i32* %tmp3, i32 7 acq_rel + store i32 %tmp4, i32 addrspace(1)* %out + ret void +} + +define void @cmpxchg_private(i32 addrspace(1)* %out, i32 %in) nounwind { +entry: + %tmp = alloca [2 x i32] + %tmp1 = getelementptr [2 x i32], [2 x i32]* %tmp, i32 0, i32 0 + %tmp2 = getelementptr [2 x i32], [2 x i32]* %tmp, i32 0, i32 1 + store i32 0, i32* %tmp1 + store i32 1, i32* %tmp2 + %tmp3 = getelementptr [2 x i32], [2 x i32]* %tmp, i32 0, i32 %in + %tmp4 = cmpxchg i32* %tmp3, i32 0, i32 1 acq_rel monotonic + %val = extractvalue { i32, i1 } %tmp4, 0 + store i32 %val, i32 addrspace(1)* %out + ret void +} |
