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| author | Matt Arsenault <Matthew.Arsenault@amd.com> | 2016-01-28 20:53:48 +0000 |
|---|---|---|
| committer | Matt Arsenault <Matthew.Arsenault@amd.com> | 2016-01-28 20:53:48 +0000 |
| commit | 5b39b34ca53da637cbf7bfa1f3ff8351bc97fdd6 (patch) | |
| tree | 65a6a5a6da4ac98713f0e77e929bd4bd45c2e516 /llvm/test/CodeGen/AMDGPU/fmed3.ll | |
| parent | f639c32739b7ddff3fcf5cc242027bbbe2b6fba9 (diff) | |
| download | bcm5719-llvm-5b39b34ca53da637cbf7bfa1f3ff8351bc97fdd6.tar.gz bcm5719-llvm-5b39b34ca53da637cbf7bfa1f3ff8351bc97fdd6.zip | |
AMDGPU: Match fmed3 patterns with legacy fmin/fmax
llvm-svn: 259090
Diffstat (limited to 'llvm/test/CodeGen/AMDGPU/fmed3.ll')
| -rw-r--r-- | llvm/test/CodeGen/AMDGPU/fmed3.ll | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/llvm/test/CodeGen/AMDGPU/fmed3.ll b/llvm/test/CodeGen/AMDGPU/fmed3.ll index c02c0844024..409431102cd 100644 --- a/llvm/test/CodeGen/AMDGPU/fmed3.ll +++ b/llvm/test/CodeGen/AMDGPU/fmed3.ll @@ -126,6 +126,29 @@ define void @v_test_fmed3_r_i_i_no_nans_f32(float addrspace(1)* %out, float addr ret void } +; GCN-LABEL: {{^}}v_test_legacy_fmed3_r_i_i_f32: +; NOSNAN: v_med3_f32 v{{[0-9]+}}, v{{[0-9]+}}, 2.0, 4.0 + +; SNAN: v_max_f32_e32 v{{[0-9]+}}, 2.0, v{{[0-9]+}} +; SNAN: v_min_f32_e32 v{{[0-9]+}}, 4.0, v{{[0-9]+}} +define void @v_test_legacy_fmed3_r_i_i_f32(float addrspace(1)* %out, float addrspace(1)* %aptr) #1 { + %tid = call i32 @llvm.r600.read.tidig.x() + %gep0 = getelementptr float, float addrspace(1)* %aptr, i32 %tid + %outgep = getelementptr float, float addrspace(1)* %out, i32 %tid + %a = load float, float addrspace(1)* %gep0 + + ; fmax_legacy + %cmp0 = fcmp ule float %a, 2.0 + %max = select i1 %cmp0, float 2.0, float %a + + ; fmin_legacy + %cmp1 = fcmp uge float %max, 4.0 + %med = select i1 %cmp1, float 4.0, float %max + + store float %med, float addrspace(1)* %outgep + ret void +} + attributes #0 = { nounwind readnone } attributes #1 = { nounwind "unsafe-fp-math"="false" "no-nans-fp-math"="false" } attributes #2 = { nounwind "unsafe-fp-math"="false" "no-nans-fp-math"="true" } |
