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Diffstat (limited to 'test/CodeGen/AMDGPU/selectcc-opt.ll')
-rw-r--r-- | test/CodeGen/AMDGPU/selectcc-opt.ll | 80 |
1 files changed, 80 insertions, 0 deletions
diff --git a/test/CodeGen/AMDGPU/selectcc-opt.ll b/test/CodeGen/AMDGPU/selectcc-opt.ll new file mode 100644 index 00000000000..65be4a626a1 --- /dev/null +++ b/test/CodeGen/AMDGPU/selectcc-opt.ll @@ -0,0 +1,80 @@ +; RUN: llc -march=amdgcn -mcpu=SI < %s | FileCheck -check-prefix=SI -check-prefix=FUNC %s +; RUN: llc -march=amdgcn -mcpu=tonga < %s | FileCheck -check-prefix=SI -check-prefix=FUNC %s +; RUN: llc -march=r600 -mcpu=redwood < %s | FileCheck -check-prefix=EG -check-prefix=FUNC %s + + +; FUNC-LABEL: {{^}}test_a: +; EG-NOT: CND +; EG: SET{{[NEQGTL]+}}_DX10 + +define void @test_a(i32 addrspace(1)* %out, float %in) { +entry: + %0 = fcmp olt float %in, 0.000000e+00 + %1 = select i1 %0, float 1.000000e+00, float 0.000000e+00 + %2 = fsub float -0.000000e+00, %1 + %3 = fptosi float %2 to i32 + %4 = bitcast i32 %3 to float + %5 = bitcast float %4 to i32 + %6 = icmp ne i32 %5, 0 + br i1 %6, label %IF, label %ENDIF + +IF: + %7 = getelementptr i32, i32 addrspace(1)* %out, i32 1 + store i32 0, i32 addrspace(1)* %7 + br label %ENDIF + +ENDIF: + store i32 0, i32 addrspace(1)* %out + ret void +} + +; Same as test_a, but the branch labels are swapped to produce the inverse cc +; for the icmp instruction + +; EG-LABEL: {{^}}test_b: +; EG: SET{{[GTEQN]+}}_DX10 +; EG-NEXT: PRED_ +; EG-NEXT: ALU clause starting +define void @test_b(i32 addrspace(1)* %out, float %in) { +entry: + %0 = fcmp olt float %in, 0.0 + %1 = select i1 %0, float 1.000000e+00, float 0.000000e+00 + %2 = fsub float -0.000000e+00, %1 + %3 = fptosi float %2 to i32 + %4 = bitcast i32 %3 to float + %5 = bitcast float %4 to i32 + %6 = icmp ne i32 %5, 0 + br i1 %6, label %ENDIF, label %IF + +IF: + %7 = getelementptr i32, i32 addrspace(1)* %out, i32 1 + store i32 0, i32 addrspace(1)* %7 + br label %ENDIF + +ENDIF: + store i32 0, i32 addrspace(1)* %out + ret void +} + +; Test a CND*_INT instruction with float true/false values +; EG-LABEL: {{^}}test_c: +; EG: CND{{[GTE]+}}_INT +define void @test_c(float addrspace(1)* %out, i32 %in) { +entry: + %0 = icmp sgt i32 %in, 0 + %1 = select i1 %0, float 2.0, float 3.0 + store float %1, float addrspace(1)* %out + ret void +} + +; FUNC-LABEL: {{^}}selectcc_bool: +; SI: v_cmp_ne_i32 +; SI-NEXT: v_cndmask_b32_e64 +; SI-NOT: cmp +; SI-NOT: cndmask +define void @selectcc_bool(i32 addrspace(1)* %out, i32 %a, i32 %b) nounwind { + %icmp0 = icmp ne i32 %a, %b + %ext = select i1 %icmp0, i32 -1, i32 0 + store i32 %ext, i32 addrspace(1)* %out + ret void +} |