81 lines
2.2 KiB
LLVM
81 lines
2.2 KiB
LLVM
; RUN: llc -march=amdgcn < %s | FileCheck -check-prefix=SI -check-prefix=FUNC %s
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; RUN: llc -march=amdgcn -mcpu=tonga -mattr=-flat-for-global < %s | FileCheck -check-prefix=SI -check-prefix=FUNC %s
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; RUN: llc -march=r600 -mcpu=redwood < %s | FileCheck -check-prefix=EG -check-prefix=FUNC %s
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; FUNC-LABEL: {{^}}test_a:
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; EG-NOT: CND
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; EG: SET{{[NEQGTL]+}}_DX10
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define amdgpu_kernel void @test_a(i32 addrspace(1)* %out, float %in) {
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entry:
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%0 = fcmp olt float %in, 0.000000e+00
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%1 = select i1 %0, float 1.000000e+00, float 0.000000e+00
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%2 = fneg float %1
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%3 = fptosi float %2 to i32
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%4 = bitcast i32 %3 to float
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%5 = bitcast float %4 to i32
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%6 = icmp ne i32 %5, 0
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br i1 %6, label %IF, label %ENDIF
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IF:
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%7 = getelementptr i32, i32 addrspace(1)* %out, i32 1
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store i32 0, i32 addrspace(1)* %7
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br label %ENDIF
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ENDIF:
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store i32 0, i32 addrspace(1)* %out
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ret void
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}
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; Same as test_a, but the branch labels are swapped to produce the inverse cc
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; for the icmp instruction
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; EG-LABEL: {{^}}test_b:
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; EG: SET{{[GTEQN]+}}_DX10
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; EG-NEXT: PRED_
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; EG-NEXT: ALU clause starting
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define amdgpu_kernel void @test_b(i32 addrspace(1)* %out, float %in) {
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entry:
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%0 = fcmp olt float %in, 0.0
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%1 = select i1 %0, float 1.000000e+00, float 0.000000e+00
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%2 = fneg float %1
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%3 = fptosi float %2 to i32
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%4 = bitcast i32 %3 to float
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%5 = bitcast float %4 to i32
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%6 = icmp ne i32 %5, 0
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br i1 %6, label %ENDIF, label %IF
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IF:
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%7 = getelementptr i32, i32 addrspace(1)* %out, i32 1
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store i32 0, i32 addrspace(1)* %7
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br label %ENDIF
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ENDIF:
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store i32 0, i32 addrspace(1)* %out
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ret void
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}
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; Test a CND*_INT instruction with float true/false values
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; EG-LABEL: {{^}}test_c:
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; EG: CND{{[GTE]+}}_INT
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define amdgpu_kernel void @test_c(float addrspace(1)* %out, i32 %in) {
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entry:
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%0 = icmp sgt i32 %in, 0
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%1 = select i1 %0, float 2.0, float 3.0
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store float %1, float addrspace(1)* %out
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ret void
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}
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; FUNC-LABEL: {{^}}selectcc_bool:
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; SI: v_cmp_ne_u32
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; SI: v_cndmask_b32_e64
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; SI-NOT: cmp
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; SI-NOT: cndmask
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define amdgpu_kernel void @selectcc_bool(i32 addrspace(1)* %out, i32 %a, i32 %b) nounwind {
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%icmp0 = icmp ne i32 %a, %b
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%ext = select i1 %icmp0, i32 -1, i32 0
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store i32 %ext, i32 addrspace(1)* %out
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ret void
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}
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