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144 lines
5.4 KiB
LLVM
144 lines
5.4 KiB
LLVM
; RUN: llc -amdgpu-scalarize-global-loads=false -march=amdgcn -mcpu=tahiti -verify-machineinstrs < %s | FileCheck -check-prefix=GCN -check-prefix=FUNC %s
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; RUN: llc -amdgpu-scalarize-global-loads=false -march=amdgcn -mcpu=tonga -mattr=-flat-for-global -verify-machineinstrs < %s | FileCheck -check-prefix=GCN -check-prefix=FUNC %s
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; RUN: llc -amdgpu-scalarize-global-loads=false -march=r600 -mcpu=redwood < %s | FileCheck -check-prefix=R600 -check-prefix=FUNC %s
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; Run with unsafe-fp-math to make sure nothing tries to turn this into 1 / rsqrt(x)
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; FUNC-LABEL: {{^}}v_safe_fsqrt_f32:
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; GCN: v_sqrt_f32_e32 {{v[0-9]+, v[0-9]+}}
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define amdgpu_kernel void @v_safe_fsqrt_f32(float addrspace(1)* %out, float addrspace(1)* %in) #1 {
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%r0 = load float, float addrspace(1)* %in
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%r1 = call float @llvm.sqrt.f32(float %r0)
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store float %r1, float addrspace(1)* %out
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ret void
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}
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; FUNC-LABEL: {{^}}v_unsafe_fsqrt_f32:
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; GCN: v_sqrt_f32_e32 {{v[0-9]+, v[0-9]+}}
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define amdgpu_kernel void @v_unsafe_fsqrt_f32(float addrspace(1)* %out, float addrspace(1)* %in) #2 {
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%r0 = load float, float addrspace(1)* %in
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%r1 = call float @llvm.sqrt.f32(float %r0)
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store float %r1, float addrspace(1)* %out
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ret void
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}
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; FUNC-LABEL: {{^}}s_sqrt_f32:
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; GCN: v_sqrt_f32_e32
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; R600: RECIPSQRT_CLAMPED * T{{[0-9]\.[XYZW]}}, KC0[2].Z
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; R600: MUL NON-IEEE T{{[0-9]\.[XYZW]}}, KC0[2].Z, PS
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define amdgpu_kernel void @s_sqrt_f32(float addrspace(1)* %out, float %in) #1 {
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entry:
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%fdiv = call float @llvm.sqrt.f32(float %in)
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store float %fdiv, float addrspace(1)* %out
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ret void
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}
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; FUNC-LABEL: {{^}}s_sqrt_v2f32:
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; GCN: v_sqrt_f32_e32
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; GCN: v_sqrt_f32_e32
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; R600-DAG: RECIPSQRT_CLAMPED * T{{[0-9]\.[XYZW]}}, KC0[2].W
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; R600-DAG: MUL NON-IEEE T{{[0-9]\.[XYZW]}}, KC0[2].W, PS
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; R600-DAG: RECIPSQRT_CLAMPED * T{{[0-9]\.[XYZW]}}, KC0[3].X
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; R600-DAG: MUL NON-IEEE T{{[0-9]\.[XYZW]}}, KC0[3].X, PS
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define amdgpu_kernel void @s_sqrt_v2f32(<2 x float> addrspace(1)* %out, <2 x float> %in) #1 {
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entry:
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%fdiv = call <2 x float> @llvm.sqrt.v2f32(<2 x float> %in)
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store <2 x float> %fdiv, <2 x float> addrspace(1)* %out
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ret void
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}
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; FUNC-LABEL: {{^}}s_sqrt_v4f32:
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; GCN: v_sqrt_f32_e32
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; GCN: v_sqrt_f32_e32
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; GCN: v_sqrt_f32_e32
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; GCN: v_sqrt_f32_e32
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; R600-DAG: RECIPSQRT_CLAMPED * T{{[0-9]\.[XYZW]}}, KC0[3].Y
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; R600-DAG: MUL NON-IEEE T{{[0-9]\.[XYZW]}}, KC0[3].Y, PS
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; R600-DAG: RECIPSQRT_CLAMPED * T{{[0-9]\.[XYZW]}}, KC0[3].Z
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; R600-DAG: MUL NON-IEEE T{{[0-9]\.[XYZW]}}, KC0[3].Z, PS
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; R600-DAG: RECIPSQRT_CLAMPED * T{{[0-9]\.[XYZW]}}, KC0[3].W
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; R600-DAG: MUL NON-IEEE T{{[0-9]\.[XYZW]}}, KC0[3].W, PS
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; R600-DAG: RECIPSQRT_CLAMPED * T{{[0-9]\.[XYZW]}}, KC0[4].X
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; R600-DAG: MUL NON-IEEE T{{[0-9]\.[XYZW]}}, KC0[4].X, PS
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define amdgpu_kernel void @s_sqrt_v4f32(<4 x float> addrspace(1)* %out, <4 x float> %in) #1 {
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entry:
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%fdiv = call <4 x float> @llvm.sqrt.v4f32(<4 x float> %in)
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store <4 x float> %fdiv, <4 x float> addrspace(1)* %out
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ret void
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}
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; FUNC-LABEL: {{^}}elim_redun_check_neg0:
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; GCN: v_sqrt_f32_e32
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; GCN-NOT: v_cndmask
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define amdgpu_kernel void @elim_redun_check_neg0(float addrspace(1)* %out, float %in) #1 {
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entry:
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%sqrt = call float @llvm.sqrt.f32(float %in)
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%cmp = fcmp olt float %in, -0.000000e+00
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%res = select i1 %cmp, float 0x7FF8000000000000, float %sqrt
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store float %res, float addrspace(1)* %out
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ret void
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}
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; FUNC-LABEL: {{^}}elim_redun_check_pos0:
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; GCN: v_sqrt_f32_e32
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; GCN-NOT: v_cndmask
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define amdgpu_kernel void @elim_redun_check_pos0(float addrspace(1)* %out, float %in) #1 {
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entry:
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%sqrt = call float @llvm.sqrt.f32(float %in)
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%cmp = fcmp olt float %in, 0.000000e+00
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%res = select i1 %cmp, float 0x7FF8000000000000, float %sqrt
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store float %res, float addrspace(1)* %out
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ret void
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}
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; FUNC-LABEL: {{^}}elim_redun_check_ult:
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; GCN: v_sqrt_f32_e32
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; GCN-NOT: v_cndmask
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define amdgpu_kernel void @elim_redun_check_ult(float addrspace(1)* %out, float %in) #1 {
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entry:
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%sqrt = call float @llvm.sqrt.f32(float %in)
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%cmp = fcmp ult float %in, -0.000000e+00
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%res = select i1 %cmp, float 0x7FF8000000000000, float %sqrt
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store float %res, float addrspace(1)* %out
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ret void
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}
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; FUNC-LABEL: {{^}}elim_redun_check_v2:
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; GCN: v_sqrt_f32_e32
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; GCN: v_sqrt_f32_e32
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; GCN-NOT: v_cndmask
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define amdgpu_kernel void @elim_redun_check_v2(<2 x float> addrspace(1)* %out, <2 x float> %in) #1 {
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entry:
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%sqrt = call <2 x float> @llvm.sqrt.v2f32(<2 x float> %in)
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%cmp = fcmp olt <2 x float> %in, <float -0.000000e+00, float -0.000000e+00>
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%res = select <2 x i1> %cmp, <2 x float> <float 0x7FF8000000000000, float 0x7FF8000000000000>, <2 x float> %sqrt
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store <2 x float> %res, <2 x float> addrspace(1)* %out
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ret void
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}
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; FUNC-LABEL: {{^}}elim_redun_check_v2_ult
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; GCN: v_sqrt_f32_e32
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; GCN: v_sqrt_f32_e32
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; GCN-NOT: v_cndmask
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define amdgpu_kernel void @elim_redun_check_v2_ult(<2 x float> addrspace(1)* %out, <2 x float> %in) #1 {
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entry:
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%sqrt = call <2 x float> @llvm.sqrt.v2f32(<2 x float> %in)
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%cmp = fcmp ult <2 x float> %in, <float -0.000000e+00, float -0.000000e+00>
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%res = select <2 x i1> %cmp, <2 x float> <float 0x7FF8000000000000, float 0x7FF8000000000000>, <2 x float> %sqrt
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store <2 x float> %res, <2 x float> addrspace(1)* %out
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ret void
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}
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declare float @llvm.sqrt.f32(float %in) #0
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declare <2 x float> @llvm.sqrt.v2f32(<2 x float> %in) #0
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declare <4 x float> @llvm.sqrt.v4f32(<4 x float> %in) #0
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attributes #0 = { nounwind readnone }
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attributes #1 = { nounwind "unsafe-fp-math"="false" }
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attributes #2 = { nounwind "unsafe-fp-math"="true" }
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