diff options
Diffstat (limited to 'test/CodeGen/AMDGPU/v_cndmask.ll')
| -rw-r--r-- | test/CodeGen/AMDGPU/v_cndmask.ll | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/test/CodeGen/AMDGPU/v_cndmask.ll b/test/CodeGen/AMDGPU/v_cndmask.ll new file mode 100644 index 00000000000..c368c5aaf7d --- /dev/null +++ b/test/CodeGen/AMDGPU/v_cndmask.ll @@ -0,0 +1,39 @@ +; RUN: llc -march=amdgcn -mcpu=SI -verify-machineinstrs < %s | FileCheck -check-prefix=SI %s +; RUN: llc -march=amdgcn -mcpu=tonga -verify-machineinstrs < %s | FileCheck -check-prefix=SI %s + +declare i32 @llvm.r600.read.tidig.x() #1 + +; SI-LABEL: {{^}}v_cnd_nan_nosgpr: +; SI: v_cndmask_b32_e64 v{{[0-9]}}, v{{[0-9]}}, -1, s{{\[[0-9]+:[0-9]+\]}} +; SI-DAG: v{{[0-9]}} +; All nan values are converted to 0xffffffff +; SI: s_endpgm +define void @v_cnd_nan_nosgpr(float addrspace(1)* %out, i32 %c, float addrspace(1)* %fptr) #0 { + %idx = call i32 @llvm.r600.read.tidig.x() #1 + %f.gep = getelementptr float, float addrspace(1)* %fptr, i32 %idx + %f = load float, float addrspace(1)* %fptr + %setcc = icmp ne i32 %c, 0 + %select = select i1 %setcc, float 0xFFFFFFFFE0000000, float %f + store float %select, float addrspace(1)* %out + ret void +} + + +; This requires slightly trickier SGPR operand legalization since the +; single constant bus SGPR usage is the last operand, and it should +; never be moved. + +; SI-LABEL: {{^}}v_cnd_nan: +; SI: v_cndmask_b32_e64 v{{[0-9]}}, v{{[0-9]}}, -1, s{{\[[0-9]+:[0-9]+\]}} +; SI-DAG: v{{[0-9]}} +; All nan values are converted to 0xffffffff +; SI: s_endpgm +define void @v_cnd_nan(float addrspace(1)* %out, i32 %c, float %f) #0 { + %setcc = icmp ne i32 %c, 0 + %select = select i1 %setcc, float 0xFFFFFFFFE0000000, float %f + store float %select, float addrspace(1)* %out + ret void +} + +attributes #0 = { nounwind } +attributes #1 = { nounwind readnone } |