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| author | Tom Stellard <thomas.stellard@amd.com> | 2016-02-12 23:45:29 +0000 |
|---|---|---|
| committer | Tom Stellard <thomas.stellard@amd.com> | 2016-02-12 23:45:29 +0000 |
| commit | bc4497b13ccc73e1c8c156350cc7fe50f9beae93 (patch) | |
| tree | 71e7e13564f64f708f17731941d9b73818cb5be9 /llvm/test/CodeGen/AMDGPU/inline-asm.ll | |
| parent | 0de36ec169b8c818487606658ed2504c88f4c0e7 (diff) | |
| download | bcm5719-llvm-bc4497b13ccc73e1c8c156350cc7fe50f9beae93.tar.gz bcm5719-llvm-bc4497b13ccc73e1c8c156350cc7fe50f9beae93.zip | |
AMDGPU/SI: Detect uniform branches and emit s_cbranch instructions
Reviewers: arsenm
Subscribers: mareko, MatzeB, qcolombet, arsenm, llvm-commits
Differential Revision: http://reviews.llvm.org/D16603
llvm-svn: 260765
Diffstat (limited to 'llvm/test/CodeGen/AMDGPU/inline-asm.ll')
| -rw-r--r-- | llvm/test/CodeGen/AMDGPU/inline-asm.ll | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/llvm/test/CodeGen/AMDGPU/inline-asm.ll b/llvm/test/CodeGen/AMDGPU/inline-asm.ll index 9c8d3534f8a..92214312273 100644 --- a/llvm/test/CodeGen/AMDGPU/inline-asm.ll +++ b/llvm/test/CodeGen/AMDGPU/inline-asm.ll @@ -21,3 +21,21 @@ entry: } attributes #0 = { "ShaderType"="0" } + + +; CHECK: {{^}}branch_on_asm: +; Make sure inline assembly is treted as divergent. +; CHECK: s_mov_b32 s{{[0-9]+}}, 0 +; CHECK: s_and_saveexec_b64 +define void @branch_on_asm(i32 addrspace(1)* %out) { + %zero = call i32 asm "s_mov_b32 $0, 0", "=s"() + %cmp = icmp eq i32 %zero, 0 + br i1 %cmp, label %if, label %endif + +if: + store i32 0, i32 addrspace(1)* %out + br label %endif + +endif: + ret void +} |
