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| 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 | 7cd70df7083043b4735c80c554bf47b416886f47 (patch) | |
| tree | 1ca96728300ce1f22592f7f2e53b70a2663535ab /llvm | |
| parent | 5d66da70d85d3e6332e2db5967c2c5b935350732 (diff) | |
| download | bcm5719-llvm-7cd70df7083043b4735c80c554bf47b416886f47.tar.gz bcm5719-llvm-7cd70df7083043b4735c80c554bf47b416886f47.zip | |
Fix the test: DCE optimized away everything.
Use volatile store to protect the generated PTX from DCE.
Patch by Jingyue Wu.
llvm-svn: 206763
Diffstat (limited to 'llvm')
| -rw-r--r-- | llvm/test/CodeGen/NVPTX/local-stack-frame.ll | 18 |
1 files changed, 9 insertions, 9 deletions
diff --git a/llvm/test/CodeGen/NVPTX/local-stack-frame.ll b/llvm/test/CodeGen/NVPTX/local-stack-frame.ll index 178dff1a5d3..c0d7d1c3a63 100644 --- a/llvm/test/CodeGen/NVPTX/local-stack-frame.ll +++ b/llvm/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 } |
