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https://github.com/c64scene-ar/llvm-6502.git
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4eccd9814f
This folds: (select (setcc x, -0.0, *lt), NaN, (fsqrt x)) -> ( fsqrt x) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@235333 91177308-0d34-0410-b5e6-96231b3b80d8
106 lines
3.8 KiB
LLVM
106 lines
3.8 KiB
LLVM
; RUN: llc < %s -march=r600 --mcpu=redwood | FileCheck %s --check-prefix=R600
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; RUN: llc < %s -march=amdgcn --mcpu=SI -verify-machineinstrs| FileCheck %s --check-prefix=SI
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; RUN: llc < %s -march=amdgcn --mcpu=tonga -verify-machineinstrs| FileCheck %s --check-prefix=SI
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; R600-LABEL: {{^}}sqrt_f32:
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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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; SI-LABEL: {{^}}sqrt_f32:
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; SI: v_sqrt_f32_e32
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define void @sqrt_f32(float addrspace(1)* %out, float %in) {
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entry:
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%0 = call float @llvm.sqrt.f32(float %in)
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store float %0, float addrspace(1)* %out
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ret void
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}
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; R600-LABEL: {{^}}sqrt_v2f32:
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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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; SI-LABEL: {{^}}sqrt_v2f32:
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; SI: v_sqrt_f32_e32
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; SI: v_sqrt_f32_e32
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define void @sqrt_v2f32(<2 x float> addrspace(1)* %out, <2 x float> %in) {
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entry:
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%0 = call <2 x float> @llvm.sqrt.v2f32(<2 x float> %in)
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store <2 x float> %0, <2 x float> addrspace(1)* %out
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ret void
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}
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; R600-LABEL: {{^}}sqrt_v4f32:
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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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; SI-LABEL: {{^}}sqrt_v4f32:
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; SI: v_sqrt_f32_e32
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; SI: v_sqrt_f32_e32
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; SI: v_sqrt_f32_e32
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; SI: v_sqrt_f32_e32
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define void @sqrt_v4f32(<4 x float> addrspace(1)* %out, <4 x float> %in) {
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entry:
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%0 = call <4 x float> @llvm.sqrt.v4f32(<4 x float> %in)
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store <4 x float> %0, <4 x float> addrspace(1)* %out
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ret void
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}
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; SI-LABEL: {{^}}elim_redun_check:
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; SI: v_sqrt_f32_e32
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; SI-NOT: v_cndmask
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define void @elim_redun_check(float addrspace(1)* %out, float %in) {
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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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; SI-LABEL: {{^}}elim_redun_check_ult:
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; SI: v_sqrt_f32_e32
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; SI-NOT: v_cndmask
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define void @elim_redun_check_ult(float addrspace(1)* %out, float %in) {
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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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; SI-LABEL: {{^}}elim_redun_check_v2:
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; SI: v_sqrt_f32_e32
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; SI: v_sqrt_f32_e32
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; SI-NOT: v_cndmask
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define void @elim_redun_check_v2(<2 x float> addrspace(1)* %out, <2 x float> %in) {
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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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; SI-LABEL: {{^}}elim_redun_check_v2_ult
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; SI: v_sqrt_f32_e32
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; SI: v_sqrt_f32_e32
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; SI-NOT: v_cndmask
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define void @elim_redun_check_v2_ult(<2 x float> addrspace(1)* %out, <2 x float> %in) {
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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)
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declare <2 x float> @llvm.sqrt.v2f32(<2 x float> %in)
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declare <4 x float> @llvm.sqrt.v4f32(<4 x float> %in)
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