From 7cd70df7083043b4735c80c554bf47b416886f47 Mon Sep 17 00:00:00 2001 From: Eli Bendersky Date: Mon, 21 Apr 2014 17:23:12 +0000 Subject: [PATCH] Fix the test: DCE optimized away everything. Use volatile store to protect the generated PTX from DCE. Patch by Jingyue Wu. llvm-svn: 206763 --- llvm/test/CodeGen/NVPTX/local-stack-frame.ll | 18 +++++++++--------- 1 file 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 178dff1a5d3f..c0d7d1c3a638 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 }