diff options
| author | Eli Bendersky <eliben@google.com> | 2014-04-21 17:23:12 +0000 |
|---|---|---|
| committer | Eli Bendersky <eliben@google.com> | 2014-04-21 17:23:12 +0000 |
| commit | 85af3e744592e282fec6c2209579ad29795c2e84 (patch) | |
| tree | 7bd87c92c882e90c8fe3c0176bf1ea045c7e25c1 | |
| parent | 7e0b3fbae921385e2868631e43f831b2b1841f43 (diff) | |
| download | llvm-85af3e744592e282fec6c2209579ad29795c2e84.tar.gz llvm-85af3e744592e282fec6c2209579ad29795c2e84.tar.bz2 llvm-85af3e744592e282fec6c2209579ad29795c2e84.tar.xz | |
Fix the test: DCE optimized away everything.
Use volatile store to protect the generated PTX from DCE.
Patch by Jingyue Wu.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206763 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | test/CodeGen/NVPTX/local-stack-frame.ll | 18 |
1 files changed, 9 insertions, 9 deletions
diff --git a/test/CodeGen/NVPTX/local-stack-frame.ll b/test/CodeGen/NVPTX/local-stack-frame.ll index 178dff1a5d..c0d7d1c3a6 100644 --- a/test/CodeGen/NVPTX/local-stack-frame.ll +++ b/test/CodeGen/NVPTX/local-stack-frame.ll @@ -3,16 +3,16 @@ ; Ensure we access the local stack properly -; PTX32: mov.u32 %r{{[0-9]+}}, __local_depot{{[0-9]+}}; -; PTX32: cvta.local.u32 %SP, %r{{[0-9]+}}; -; PTX32: ld.param.u32 %r{{[0-9]+}}, [foo_param_0]; -; PTX32: st.u32 [%SP+0], %r{{[0-9]+}}; -; PTX64: mov.u64 %rl{{[0-9]+}}, __local_depot{{[0-9]+}}; -; PTX64: cvta.local.u64 %SP, %rl{{[0-9]+}}; -; PTX64: ld.param.u32 %r{{[0-9]+}}, [foo_param_0]; -; PTX64: st.u32 [%SP+0], %r{{[0-9]+}}; +; PTX32: mov.u32 %r{{[0-9]+}}, __local_depot{{[0-9]+}}; +; PTX32: cvta.local.u32 %SP, %r{{[0-9]+}}; +; PTX32: ld.param.u32 %r{{[0-9]+}}, [foo_param_0]; +; PTX32: st.volatile.u32 [%SP+0], %r{{[0-9]+}}; +; PTX64: mov.u64 %rl{{[0-9]+}}, __local_depot{{[0-9]+}}; +; PTX64: cvta.local.u64 %SP, %rl{{[0-9]+}}; +; PTX64: ld.param.u32 %r{{[0-9]+}}, [foo_param_0]; +; PTX64: st.volatile.u32 [%SP+0], %r{{[0-9]+}}; define void @foo(i32 %a) { %local = alloca i32, align 4 - store i32 %a, i32* %local + store volatile i32 %a, i32* %local ret void } |