source: icGREP/icgrep-devel/llvm-3.8.0.src/test/CodeGen/AMDGPU/private-memory-atomics.ll @ 5027

Last change on this file since 5027 was 5027, checked in by cameron, 3 years ago

Upgrade to llvm 3.8

File size: 1.2 KB
Line 
1; RUN: llc -verify-machineinstrs -march=amdgcn -mcpu=SI < %s
2; RUN: llc -verify-machineinstrs -march=amdgcn -mcpu=tonga < %s
3
4; This works because promote allocas pass replaces these with LDS atomics.
5
6; Private atomics have no real use, but at least shouldn't crash on it.
7define void @atomicrmw_private(i32 addrspace(1)* %out, i32 %in) nounwind {
8entry:
9  %tmp = alloca [2 x i32]
10  %tmp1 = getelementptr [2 x i32], [2 x i32]* %tmp, i32 0, i32 0
11  %tmp2 = getelementptr [2 x i32], [2 x i32]* %tmp, i32 0, i32 1
12  store i32 0, i32* %tmp1
13  store i32 1, i32* %tmp2
14  %tmp3 = getelementptr [2 x i32], [2 x i32]* %tmp, i32 0, i32 %in
15  %tmp4 = atomicrmw add i32* %tmp3, i32 7 acq_rel
16  store i32 %tmp4, i32 addrspace(1)* %out
17  ret void
18}
19
20define void @cmpxchg_private(i32 addrspace(1)* %out, i32 %in) nounwind {
21entry:
22  %tmp = alloca [2 x i32]
23  %tmp1 = getelementptr [2 x i32], [2 x i32]* %tmp, i32 0, i32 0
24  %tmp2 = getelementptr [2 x i32], [2 x i32]* %tmp, i32 0, i32 1
25  store i32 0, i32* %tmp1
26  store i32 1, i32* %tmp2
27  %tmp3 = getelementptr [2 x i32], [2 x i32]* %tmp, i32 0, i32 %in
28  %tmp4 = cmpxchg i32* %tmp3, i32 0, i32 1 acq_rel monotonic
29  %val = extractvalue { i32, i1 } %tmp4, 0
30  store i32 %val, i32 addrspace(1)* %out
31  ret void
32}
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