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36dc1c179e
If the two operands to an instruction were both subregisters of the same super register, it would incorrectly think this counted as the same constant bus use. This fixes the verifier error in fmin_legacy.ll which was missing -verify-machineinstrs. llvm-svn: 260495
208 lines
8.9 KiB
LLVM
208 lines
8.9 KiB
LLVM
; RUN: llc -march=amdgcn -verify-machineinstrs < %s | FileCheck -check-prefix=SI-SAFE -check-prefix=SI -check-prefix=FUNC %s
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; RUN: llc -enable-no-nans-fp-math -enable-unsafe-fp-math -march=amdgcn -verify-machineinstrs < %s | FileCheck -check-prefix=SI-NONAN -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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; FIXME: Should replace unsafe-fp-math with no signed zeros.
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declare i32 @llvm.r600.read.tidig.x() #1
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; The two inputs to the instruction are different SGPRs from the same
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; super register, so we can't fold both SGPR operands even though they
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; are both the same register.
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; FUNC-LABEL: {{^}}s_test_fmin_legacy_subreg_inputs_f32:
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; EG: MIN *
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; SI-SAFE: v_min_legacy_f32_e32 v{{[0-9]+}}, s{{[0-9]+}}, v{{[0-9]+}}
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; SI-NONAN: v_min_f32_e32 v{{[0-9]+}}, s{{[0-9]+}}, v{{[0-9]+}}
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define void @s_test_fmin_legacy_subreg_inputs_f32(<4 x float> addrspace(1)* %out, <4 x float> inreg %reg0) #0 {
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%r0 = extractelement <4 x float> %reg0, i32 0
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%r1 = extractelement <4 x float> %reg0, i32 1
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%r2 = fcmp uge float %r0, %r1
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%r3 = select i1 %r2, float %r1, float %r0
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%vec = insertelement <4 x float> undef, float %r3, i32 0
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store <4 x float> %vec, <4 x float> addrspace(1)* %out, align 16
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ret void
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}
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; FUNC-LABEL: {{^}}s_test_fmin_legacy_ule_f32:
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; SI-DAG: s_load_dword [[A:s[0-9]+]], s{{\[[0-9]+:[0-9]+\]}}, 0xb
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; SI-DAG: s_load_dword [[B:s[0-9]+]], s{{\[[0-9]+:[0-9]+\]}}, 0xc
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; SI-SAFE-DAG: v_mov_b32_e32 [[VA:v[0-9]+]], [[A]]
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; SI-NONAN-DAG: v_mov_b32_e32 [[VB:v[0-9]+]], [[B]]
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; SI-SAFE: v_min_legacy_f32_e32 {{v[0-9]+}}, [[B]], [[VA]]
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; SI-NONAN: v_min_f32_e32 {{v[0-9]+}}, [[A]], [[VB]]
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define void @s_test_fmin_legacy_ule_f32(float addrspace(1)* %out, float %a, float %b) #0 {
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%cmp = fcmp ule float %a, %b
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%val = select i1 %cmp, float %a, float %b
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store float %val, float addrspace(1)* %out, align 4
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ret void
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}
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; FUNC-LABEL: @test_fmin_legacy_ule_f32
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; SI: buffer_load_dword [[A:v[0-9]+]], {{v\[[0-9]+:[0-9]+\]}}, {{s\[[0-9]+:[0-9]+\]}}, 0 addr64{{$}}
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; SI: buffer_load_dword [[B:v[0-9]+]], {{v\[[0-9]+:[0-9]+\]}}, {{s\[[0-9]+:[0-9]+\]}}, 0 addr64 offset:4
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; SI-SAFE: v_min_legacy_f32_e32 {{v[0-9]+}}, [[B]], [[A]]
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; SI-NONAN: v_min_f32_e32 {{v[0-9]+}}, [[B]], [[A]]
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define void @test_fmin_legacy_ule_f32(float addrspace(1)* %out, float addrspace(1)* %in) #0 {
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%tid = call i32 @llvm.r600.read.tidig.x() #1
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%gep.0 = getelementptr float, float addrspace(1)* %in, i32 %tid
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%gep.1 = getelementptr float, float addrspace(1)* %gep.0, i32 1
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%a = load float, float addrspace(1)* %gep.0, align 4
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%b = load float, float addrspace(1)* %gep.1, align 4
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%cmp = fcmp ule float %a, %b
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%val = select i1 %cmp, float %a, float %b
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store float %val, float addrspace(1)* %out, align 4
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ret void
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}
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; FUNC-LABEL: @test_fmin_legacy_ole_f32
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; SI: buffer_load_dword [[A:v[0-9]+]], {{v\[[0-9]+:[0-9]+\]}}, {{s\[[0-9]+:[0-9]+\]}}, 0 addr64{{$}}
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; SI: buffer_load_dword [[B:v[0-9]+]], {{v\[[0-9]+:[0-9]+\]}}, {{s\[[0-9]+:[0-9]+\]}}, 0 addr64 offset:4
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; SI-SAFE: v_min_legacy_f32_e32 {{v[0-9]+}}, [[A]], [[B]]
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; SI-NONAN: v_min_f32_e32 {{v[0-9]+}}, [[B]], [[A]]
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define void @test_fmin_legacy_ole_f32(float addrspace(1)* %out, float addrspace(1)* %in) #0 {
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%tid = call i32 @llvm.r600.read.tidig.x() #1
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%gep.0 = getelementptr float, float addrspace(1)* %in, i32 %tid
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%gep.1 = getelementptr float, float addrspace(1)* %gep.0, i32 1
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%a = load float, float addrspace(1)* %gep.0, align 4
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%b = load float, float addrspace(1)* %gep.1, align 4
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%cmp = fcmp ole float %a, %b
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%val = select i1 %cmp, float %a, float %b
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store float %val, float addrspace(1)* %out, align 4
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ret void
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}
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; FUNC-LABEL: @test_fmin_legacy_olt_f32
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; SI: buffer_load_dword [[A:v[0-9]+]], {{v\[[0-9]+:[0-9]+\]}}, {{s\[[0-9]+:[0-9]+\]}}, 0 addr64{{$}}
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; SI: buffer_load_dword [[B:v[0-9]+]], {{v\[[0-9]+:[0-9]+\]}}, {{s\[[0-9]+:[0-9]+\]}}, 0 addr64 offset:4
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; SI-SAFE: v_min_legacy_f32_e32 {{v[0-9]+}}, [[A]], [[B]]
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; SI-NONAN: v_min_f32_e32 {{v[0-9]+}}, [[B]], [[A]]
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define void @test_fmin_legacy_olt_f32(float addrspace(1)* %out, float addrspace(1)* %in) #0 {
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%tid = call i32 @llvm.r600.read.tidig.x() #1
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%gep.0 = getelementptr float, float addrspace(1)* %in, i32 %tid
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%gep.1 = getelementptr float, float addrspace(1)* %gep.0, i32 1
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%a = load float, float addrspace(1)* %gep.0, align 4
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%b = load float, float addrspace(1)* %gep.1, align 4
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%cmp = fcmp olt float %a, %b
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%val = select i1 %cmp, float %a, float %b
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store float %val, float addrspace(1)* %out, align 4
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ret void
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}
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; FUNC-LABEL: @test_fmin_legacy_ult_f32
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; SI: buffer_load_dword [[A:v[0-9]+]], {{v\[[0-9]+:[0-9]+\]}}, {{s\[[0-9]+:[0-9]+\]}}, 0 addr64{{$}}
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; SI: buffer_load_dword [[B:v[0-9]+]], {{v\[[0-9]+:[0-9]+\]}}, {{s\[[0-9]+:[0-9]+\]}}, 0 addr64 offset:4
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; SI-SAFE: v_min_legacy_f32_e32 {{v[0-9]+}}, [[B]], [[A]]
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; SI-NONAN: v_min_f32_e32 {{v[0-9]+}}, [[B]], [[A]]
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define void @test_fmin_legacy_ult_f32(float addrspace(1)* %out, float addrspace(1)* %in) #0 {
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%tid = call i32 @llvm.r600.read.tidig.x() #1
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%gep.0 = getelementptr float, float addrspace(1)* %in, i32 %tid
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%gep.1 = getelementptr float, float addrspace(1)* %gep.0, i32 1
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%a = load float, float addrspace(1)* %gep.0, align 4
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%b = load float, float addrspace(1)* %gep.1, align 4
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%cmp = fcmp ult float %a, %b
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%val = select i1 %cmp, float %a, float %b
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store float %val, float addrspace(1)* %out, align 4
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ret void
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}
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; FUNC-LABEL: {{^}}test_fmin_legacy_ult_v1f32:
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; SI: buffer_load_dword [[A:v[0-9]+]], {{v\[[0-9]+:[0-9]+\]}}, {{s\[[0-9]+:[0-9]+\]}}, 0 addr64{{$}}
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; SI: buffer_load_dword [[B:v[0-9]+]], {{v\[[0-9]+:[0-9]+\]}}, {{s\[[0-9]+:[0-9]+\]}}, 0 addr64 offset:4
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; SI-SAFE: v_min_legacy_f32_e32 {{v[0-9]+}}, [[B]], [[A]]
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; SI-NONAN: v_min_f32_e32 {{v[0-9]+}}, [[B]], [[A]]
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define void @test_fmin_legacy_ult_v1f32(<1 x float> addrspace(1)* %out, <1 x float> addrspace(1)* %in) #0 {
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%tid = call i32 @llvm.r600.read.tidig.x() #1
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%gep.0 = getelementptr <1 x float>, <1 x float> addrspace(1)* %in, i32 %tid
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%gep.1 = getelementptr <1 x float>, <1 x float> addrspace(1)* %gep.0, i32 1
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%a = load <1 x float>, <1 x float> addrspace(1)* %gep.0
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%b = load <1 x float>, <1 x float> addrspace(1)* %gep.1
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%cmp = fcmp ult <1 x float> %a, %b
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%val = select <1 x i1> %cmp, <1 x float> %a, <1 x float> %b
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store <1 x float> %val, <1 x float> addrspace(1)* %out
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ret void
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}
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; FUNC-LABEL: {{^}}test_fmin_legacy_ult_v2f32:
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; SI: buffer_load_dwordx2
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; SI: buffer_load_dwordx2
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; SI-SAFE: v_min_legacy_f32_e32
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; SI-SAFE: v_min_legacy_f32_e32
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; SI-NONAN: v_min_f32_e32
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; SI-NONAN: v_min_f32_e32
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define void @test_fmin_legacy_ult_v2f32(<2 x float> addrspace(1)* %out, <2 x float> addrspace(1)* %in) #0 {
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%tid = call i32 @llvm.r600.read.tidig.x() #1
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%gep.0 = getelementptr <2 x float>, <2 x float> addrspace(1)* %in, i32 %tid
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%gep.1 = getelementptr <2 x float>, <2 x float> addrspace(1)* %gep.0, i32 1
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%a = load <2 x float>, <2 x float> addrspace(1)* %gep.0
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%b = load <2 x float>, <2 x float> addrspace(1)* %gep.1
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%cmp = fcmp ult <2 x float> %a, %b
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%val = select <2 x i1> %cmp, <2 x float> %a, <2 x float> %b
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store <2 x float> %val, <2 x float> addrspace(1)* %out
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ret void
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}
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; FUNC-LABEL: {{^}}test_fmin_legacy_ult_v3f32:
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; SI-SAFE: v_min_legacy_f32_e32
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; SI-SAFE: v_min_legacy_f32_e32
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; SI-SAFE: v_min_legacy_f32_e32
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; SI-NONAN: v_min_f32_e32
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; SI-NONAN: v_min_f32_e32
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; SI-NONAN: v_min_f32_e32
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define void @test_fmin_legacy_ult_v3f32(<3 x float> addrspace(1)* %out, <3 x float> addrspace(1)* %in) #0 {
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%tid = call i32 @llvm.r600.read.tidig.x() #1
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%gep.0 = getelementptr <3 x float>, <3 x float> addrspace(1)* %in, i32 %tid
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%gep.1 = getelementptr <3 x float>, <3 x float> addrspace(1)* %gep.0, i32 1
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%a = load <3 x float>, <3 x float> addrspace(1)* %gep.0
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%b = load <3 x float>, <3 x float> addrspace(1)* %gep.1
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%cmp = fcmp ult <3 x float> %a, %b
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%val = select <3 x i1> %cmp, <3 x float> %a, <3 x float> %b
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store <3 x float> %val, <3 x float> addrspace(1)* %out
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ret void
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}
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; FUNC-LABEL: @test_fmin_legacy_ole_f32_multi_use
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; SI: buffer_load_dword [[A:v[0-9]+]], {{v\[[0-9]+:[0-9]+\]}}, {{s\[[0-9]+:[0-9]+\]}}, 0 addr64{{$}}
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; SI: buffer_load_dword [[B:v[0-9]+]], {{v\[[0-9]+:[0-9]+\]}}, {{s\[[0-9]+:[0-9]+\]}}, 0 addr64 offset:4
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; SI-NOT: v_min
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; SI: v_cmp_le_f32
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; SI-NEXT: v_cndmask_b32
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; SI-NOT: v_min
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; SI: s_endpgm
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define void @test_fmin_legacy_ole_f32_multi_use(float addrspace(1)* %out0, i1 addrspace(1)* %out1, float addrspace(1)* %in) #0 {
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%tid = call i32 @llvm.r600.read.tidig.x() #1
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%gep.0 = getelementptr float, float addrspace(1)* %in, i32 %tid
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%gep.1 = getelementptr float, float addrspace(1)* %gep.0, i32 1
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%a = load float, float addrspace(1)* %gep.0, align 4
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%b = load float, float addrspace(1)* %gep.1, align 4
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%cmp = fcmp ole float %a, %b
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%val0 = select i1 %cmp, float %a, float %b
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store float %val0, float addrspace(1)* %out0, align 4
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store i1 %cmp, i1 addrspace(1)* %out1
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ret void
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}
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attributes #0 = { nounwind }
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attributes #1 = { nounwind readnone }
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