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[X86][SSE] Added chained FDIV test cases for D26855
Tests to demonstrate throughput-latency decision between div and rcp on faster hardware such as Haswell llvm-svn: 294750
This commit is contained in:
Simon Pilgrim
parent
91218fd943
commit
1393a74165
@ -147,6 +147,99 @@ define float @f32_one_step_2(float %x) #1 {
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ret float %div
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}
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define float @f32_one_step_2_divs(float %x) #1 {
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; SSE-LABEL: f32_one_step_2_divs:
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; SSE: # BB#0:
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; SSE-NEXT: rcpss %xmm0, %xmm1
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; SSE-NEXT: mulss %xmm1, %xmm0
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; SSE-NEXT: movss {{.*#+}} xmm2 = mem[0],zero,zero,zero
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; SSE-NEXT: subss %xmm0, %xmm2
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; SSE-NEXT: mulss %xmm1, %xmm2
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; SSE-NEXT: addss %xmm1, %xmm2
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; SSE-NEXT: movss {{.*#+}} xmm0 = mem[0],zero,zero,zero
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; SSE-NEXT: mulss %xmm2, %xmm0
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; SSE-NEXT: mulss %xmm2, %xmm0
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; SSE-NEXT: retq
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;
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; AVX-RECIP-LABEL: f32_one_step_2_divs:
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; AVX-RECIP: # BB#0:
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; AVX-RECIP-NEXT: vrcpss %xmm0, %xmm0, %xmm1
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; AVX-RECIP-NEXT: vmulss %xmm1, %xmm0, %xmm0
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; AVX-RECIP-NEXT: vmovss {{.*#+}} xmm2 = mem[0],zero,zero,zero
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; AVX-RECIP-NEXT: vsubss %xmm0, %xmm2, %xmm0
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; AVX-RECIP-NEXT: vmulss %xmm0, %xmm1, %xmm0
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; AVX-RECIP-NEXT: vaddss %xmm0, %xmm1, %xmm0
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; AVX-RECIP-NEXT: vmulss {{.*}}(%rip), %xmm0, %xmm1
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; AVX-RECIP-NEXT: vmulss %xmm0, %xmm1, %xmm0
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; AVX-RECIP-NEXT: retq
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;
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; FMA-RECIP-LABEL: f32_one_step_2_divs:
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; FMA-RECIP: # BB#0:
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; FMA-RECIP-NEXT: vrcpss %xmm0, %xmm0, %xmm1
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; FMA-RECIP-NEXT: vfnmadd213ss {{.*}}(%rip), %xmm1, %xmm0
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; FMA-RECIP-NEXT: vfmadd132ss %xmm1, %xmm1, %xmm0
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; FMA-RECIP-NEXT: vmulss {{.*}}(%rip), %xmm0, %xmm1
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; FMA-RECIP-NEXT: vmulss %xmm0, %xmm1, %xmm0
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; FMA-RECIP-NEXT: retq
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;
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; BTVER2-LABEL: f32_one_step_2_divs:
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; BTVER2: # BB#0:
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; BTVER2-NEXT: vmovss {{.*#+}} xmm2 = mem[0],zero,zero,zero
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; BTVER2-NEXT: vrcpss %xmm0, %xmm0, %xmm1
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; BTVER2-NEXT: vmulss %xmm1, %xmm0, %xmm0
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; BTVER2-NEXT: vsubss %xmm0, %xmm2, %xmm0
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; BTVER2-NEXT: vmulss %xmm0, %xmm1, %xmm0
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; BTVER2-NEXT: vaddss %xmm0, %xmm1, %xmm0
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; BTVER2-NEXT: vmulss {{.*}}(%rip), %xmm0, %xmm1
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; BTVER2-NEXT: vmulss %xmm0, %xmm1, %xmm0
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; BTVER2-NEXT: retq
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;
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; SANDY-LABEL: f32_one_step_2_divs:
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; SANDY: # BB#0:
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; SANDY-NEXT: vrcpss %xmm0, %xmm0, %xmm1
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; SANDY-NEXT: vmulss %xmm1, %xmm0, %xmm0
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; SANDY-NEXT: vmovss {{.*#+}} xmm2 = mem[0],zero,zero,zero
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; SANDY-NEXT: vsubss %xmm0, %xmm2, %xmm0
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; SANDY-NEXT: vmulss %xmm0, %xmm1, %xmm0
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; SANDY-NEXT: vaddss %xmm0, %xmm1, %xmm0
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; SANDY-NEXT: vmulss {{.*}}(%rip), %xmm0, %xmm1
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; SANDY-NEXT: vmulss %xmm0, %xmm1, %xmm0
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; SANDY-NEXT: retq
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;
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; HASWELL-LABEL: f32_one_step_2_divs:
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; HASWELL: # BB#0:
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; HASWELL-NEXT: vrcpss %xmm0, %xmm0, %xmm1
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; HASWELL-NEXT: vfnmadd213ss {{.*}}(%rip), %xmm1, %xmm0
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; HASWELL-NEXT: vfmadd132ss %xmm1, %xmm1, %xmm0
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; HASWELL-NEXT: vmulss {{.*}}(%rip), %xmm0, %xmm1
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; HASWELL-NEXT: vmulss %xmm0, %xmm1, %xmm0
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; HASWELL-NEXT: retq
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;
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; HASWELL-NO-FMA-LABEL: f32_one_step_2_divs:
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; HASWELL-NO-FMA: # BB#0:
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; HASWELL-NO-FMA-NEXT: vrcpss %xmm0, %xmm0, %xmm1
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; HASWELL-NO-FMA-NEXT: vmulss %xmm1, %xmm0, %xmm0
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; HASWELL-NO-FMA-NEXT: vmovss {{.*#+}} xmm2 = mem[0],zero,zero,zero
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; HASWELL-NO-FMA-NEXT: vsubss %xmm0, %xmm2, %xmm0
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; HASWELL-NO-FMA-NEXT: vmulss %xmm0, %xmm1, %xmm0
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; HASWELL-NO-FMA-NEXT: vaddss %xmm0, %xmm1, %xmm0
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; HASWELL-NO-FMA-NEXT: vmulss {{.*}}(%rip), %xmm0, %xmm1
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; HASWELL-NO-FMA-NEXT: vmulss %xmm0, %xmm1, %xmm0
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; HASWELL-NO-FMA-NEXT: retq
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;
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; AVX512-LABEL: f32_one_step_2_divs:
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; AVX512: # BB#0:
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; AVX512-NEXT: vrcp14ss %xmm0, %xmm0, %xmm1
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; AVX512-NEXT: vfnmadd213ss {{.*}}(%rip), %xmm1, %xmm0
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; AVX512-NEXT: vfmadd132ss %xmm1, %xmm1, %xmm0
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; AVX512-NEXT: vmulss {{.*}}(%rip), %xmm0, %xmm1
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; AVX512-NEXT: vmulss %xmm0, %xmm1, %xmm0
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; AVX512-NEXT: retq
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%div = fdiv fast float 3456.0, %x
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%div2 = fdiv fast float %div, %x
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ret float %div2
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}
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define float @f32_two_step_2(float %x) #2 {
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; SSE-LABEL: f32_two_step_2:
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; SSE: # BB#0:
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@ -359,6 +452,110 @@ define <4 x float> @v4f32_one_step2(<4 x float> %x) #1 {
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ret <4 x float> %div
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}
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define <4 x float> @v4f32_one_step_2_divs(<4 x float> %x) #1 {
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; SSE-LABEL: v4f32_one_step_2_divs:
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; SSE: # BB#0:
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; SSE-NEXT: rcpps %xmm0, %xmm1
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; SSE-NEXT: mulps %xmm1, %xmm0
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; SSE-NEXT: movaps {{.*#+}} xmm2 = [1.000000e+00,1.000000e+00,1.000000e+00,1.000000e+00]
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; SSE-NEXT: subps %xmm0, %xmm2
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; SSE-NEXT: mulps %xmm1, %xmm2
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; SSE-NEXT: addps %xmm1, %xmm2
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; SSE-NEXT: movaps {{.*#+}} xmm0 = [1.000000e+00,2.000000e+00,3.000000e+00,4.000000e+00]
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; SSE-NEXT: mulps %xmm2, %xmm0
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; SSE-NEXT: mulps %xmm2, %xmm0
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; SSE-NEXT: retq
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;
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; AVX-RECIP-LABEL: v4f32_one_step_2_divs:
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; AVX-RECIP: # BB#0:
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; AVX-RECIP-NEXT: vrcpps %xmm0, %xmm1
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; AVX-RECIP-NEXT: vmulps %xmm1, %xmm0, %xmm0
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; AVX-RECIP-NEXT: vmovaps {{.*#+}} xmm2 = [1.000000e+00,1.000000e+00,1.000000e+00,1.000000e+00]
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; AVX-RECIP-NEXT: vsubps %xmm0, %xmm2, %xmm0
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; AVX-RECIP-NEXT: vmulps %xmm0, %xmm1, %xmm0
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; AVX-RECIP-NEXT: vaddps %xmm0, %xmm1, %xmm0
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; AVX-RECIP-NEXT: vmulps {{.*}}(%rip), %xmm0, %xmm1
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; AVX-RECIP-NEXT: vmulps %xmm0, %xmm1, %xmm0
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; AVX-RECIP-NEXT: retq
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;
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; FMA-RECIP-LABEL: v4f32_one_step_2_divs:
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; FMA-RECIP: # BB#0:
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; FMA-RECIP-NEXT: vrcpps %xmm0, %xmm1
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; FMA-RECIP-NEXT: vfnmadd213ps {{.*}}(%rip), %xmm1, %xmm0
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; FMA-RECIP-NEXT: vfmadd132ps %xmm1, %xmm1, %xmm0
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; FMA-RECIP-NEXT: vmulps {{.*}}(%rip), %xmm0, %xmm1
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; FMA-RECIP-NEXT: vmulps %xmm0, %xmm1, %xmm0
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; FMA-RECIP-NEXT: retq
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;
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; BTVER2-LABEL: v4f32_one_step_2_divs:
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; BTVER2: # BB#0:
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; BTVER2-NEXT: vmovaps {{.*#+}} xmm2 = [1.000000e+00,1.000000e+00,1.000000e+00,1.000000e+00]
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; BTVER2-NEXT: vrcpps %xmm0, %xmm1
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; BTVER2-NEXT: vmulps %xmm1, %xmm0, %xmm0
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; BTVER2-NEXT: vsubps %xmm0, %xmm2, %xmm0
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; BTVER2-NEXT: vmulps %xmm0, %xmm1, %xmm0
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; BTVER2-NEXT: vaddps %xmm0, %xmm1, %xmm0
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; BTVER2-NEXT: vmulps {{.*}}(%rip), %xmm0, %xmm1
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; BTVER2-NEXT: vmulps %xmm0, %xmm1, %xmm0
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; BTVER2-NEXT: retq
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;
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; SANDY-LABEL: v4f32_one_step_2_divs:
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; SANDY: # BB#0:
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; SANDY-NEXT: vrcpps %xmm0, %xmm1
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; SANDY-NEXT: vmulps %xmm1, %xmm0, %xmm0
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; SANDY-NEXT: vmovaps {{.*#+}} xmm2 = [1.000000e+00,1.000000e+00,1.000000e+00,1.000000e+00]
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; SANDY-NEXT: vsubps %xmm0, %xmm2, %xmm0
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; SANDY-NEXT: vmulps %xmm0, %xmm1, %xmm0
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; SANDY-NEXT: vaddps %xmm0, %xmm1, %xmm0
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; SANDY-NEXT: vmulps {{.*}}(%rip), %xmm0, %xmm1
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; SANDY-NEXT: vmulps %xmm0, %xmm1, %xmm0
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; SANDY-NEXT: retq
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;
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; HASWELL-LABEL: v4f32_one_step_2_divs:
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; HASWELL: # BB#0:
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; HASWELL-NEXT: vrcpps %xmm0, %xmm1
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; HASWELL-NEXT: vbroadcastss {{.*}}(%rip), %xmm2
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; HASWELL-NEXT: vfnmadd213ps %xmm2, %xmm1, %xmm0
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; HASWELL-NEXT: vfmadd132ps %xmm1, %xmm1, %xmm0
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; HASWELL-NEXT: vmulps {{.*}}(%rip), %xmm0, %xmm1
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; HASWELL-NEXT: vmulps %xmm0, %xmm1, %xmm0
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; HASWELL-NEXT: retq
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;
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; HASWELL-NO-FMA-LABEL: v4f32_one_step_2_divs:
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; HASWELL-NO-FMA: # BB#0:
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; HASWELL-NO-FMA-NEXT: vrcpps %xmm0, %xmm1
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; HASWELL-NO-FMA-NEXT: vmulps %xmm1, %xmm0, %xmm0
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; HASWELL-NO-FMA-NEXT: vbroadcastss {{.*}}(%rip), %xmm2
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; HASWELL-NO-FMA-NEXT: vsubps %xmm0, %xmm2, %xmm0
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; HASWELL-NO-FMA-NEXT: vmulps %xmm0, %xmm1, %xmm0
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; HASWELL-NO-FMA-NEXT: vaddps %xmm0, %xmm1, %xmm0
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; HASWELL-NO-FMA-NEXT: vmulps {{.*}}(%rip), %xmm0, %xmm1
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; HASWELL-NO-FMA-NEXT: vmulps %xmm0, %xmm1, %xmm0
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; HASWELL-NO-FMA-NEXT: retq
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;
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; KNL-LABEL: v4f32_one_step_2_divs:
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; KNL: # BB#0:
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; KNL-NEXT: vrcpps %xmm0, %xmm1
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; KNL-NEXT: vbroadcastss {{.*}}(%rip), %xmm2
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; KNL-NEXT: vfnmadd213ps %xmm2, %xmm1, %xmm0
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; KNL-NEXT: vfmadd132ps %xmm1, %xmm1, %xmm0
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; KNL-NEXT: vmulps {{.*}}(%rip), %xmm0, %xmm1
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; KNL-NEXT: vmulps %xmm0, %xmm1, %xmm0
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; KNL-NEXT: retq
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;
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; SKX-LABEL: v4f32_one_step_2_divs:
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; SKX: # BB#0:
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; SKX-NEXT: vrcp14ps %xmm0, %xmm1
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; SKX-NEXT: vfnmadd213ps {{.*}}(%rip){1to4}, %xmm1, %xmm0
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; SKX-NEXT: vfmadd132ps %xmm1, %xmm1, %xmm0
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; SKX-NEXT: vmulps {{.*}}(%rip), %xmm0, %xmm1
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; SKX-NEXT: vmulps %xmm0, %xmm1, %xmm0
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; SKX-NEXT: retq
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%div = fdiv fast <4 x float> <float 1.0, float 2.0, float 3.0, float 4.0>, %x
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%div2 = fdiv fast <4 x float> %div, %x
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ret <4 x float> %div2
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}
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define <4 x float> @v4f32_two_step2(<4 x float> %x) #2 {
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; SSE-LABEL: v4f32_two_step2:
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; SSE: # BB#0:
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@ -591,6 +788,119 @@ define <8 x float> @v8f32_one_step2(<8 x float> %x) #1 {
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ret <8 x float> %div
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}
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define <8 x float> @v8f32_one_step_2_divs(<8 x float> %x) #1 {
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; SSE-LABEL: v8f32_one_step_2_divs:
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; SSE: # BB#0:
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; SSE-NEXT: rcpps %xmm0, %xmm2
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; SSE-NEXT: mulps %xmm2, %xmm0
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; SSE-NEXT: movaps {{.*#+}} xmm3 = [1.000000e+00,1.000000e+00,1.000000e+00,1.000000e+00]
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; SSE-NEXT: movaps %xmm3, %xmm4
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; SSE-NEXT: subps %xmm0, %xmm4
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; SSE-NEXT: mulps %xmm2, %xmm4
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; SSE-NEXT: addps %xmm2, %xmm4
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; SSE-NEXT: rcpps %xmm1, %xmm0
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; SSE-NEXT: mulps %xmm0, %xmm1
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; SSE-NEXT: subps %xmm1, %xmm3
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; SSE-NEXT: mulps %xmm0, %xmm3
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; SSE-NEXT: addps %xmm0, %xmm3
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; SSE-NEXT: movaps {{.*#+}} xmm1 = [5.000000e+00,6.000000e+00,7.000000e+00,8.000000e+00]
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; SSE-NEXT: mulps %xmm3, %xmm1
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; SSE-NEXT: movaps {{.*#+}} xmm0 = [1.000000e+00,2.000000e+00,3.000000e+00,4.000000e+00]
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; SSE-NEXT: mulps %xmm4, %xmm0
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; SSE-NEXT: mulps %xmm4, %xmm0
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; SSE-NEXT: mulps %xmm3, %xmm1
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; SSE-NEXT: retq
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;
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; AVX-RECIP-LABEL: v8f32_one_step_2_divs:
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; AVX-RECIP: # BB#0:
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; AVX-RECIP-NEXT: vrcpps %ymm0, %ymm1
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; AVX-RECIP-NEXT: vmulps %ymm1, %ymm0, %ymm0
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; AVX-RECIP-NEXT: vmovaps {{.*#+}} ymm2 = [1.000000e+00,1.000000e+00,1.000000e+00,1.000000e+00,1.000000e+00,1.000000e+00,1.000000e+00,1.000000e+00]
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; AVX-RECIP-NEXT: vsubps %ymm0, %ymm2, %ymm0
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; AVX-RECIP-NEXT: vmulps %ymm0, %ymm1, %ymm0
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; AVX-RECIP-NEXT: vaddps %ymm0, %ymm1, %ymm0
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; AVX-RECIP-NEXT: vmulps {{.*}}(%rip), %ymm0, %ymm1
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; AVX-RECIP-NEXT: vmulps %ymm0, %ymm1, %ymm0
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; AVX-RECIP-NEXT: retq
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;
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; FMA-RECIP-LABEL: v8f32_one_step_2_divs:
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; FMA-RECIP: # BB#0:
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; FMA-RECIP-NEXT: vrcpps %ymm0, %ymm1
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; FMA-RECIP-NEXT: vfnmadd213ps {{.*}}(%rip), %ymm1, %ymm0
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; FMA-RECIP-NEXT: vfmadd132ps %ymm1, %ymm1, %ymm0
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; FMA-RECIP-NEXT: vmulps {{.*}}(%rip), %ymm0, %ymm1
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; FMA-RECIP-NEXT: vmulps %ymm0, %ymm1, %ymm0
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; FMA-RECIP-NEXT: retq
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;
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; BTVER2-LABEL: v8f32_one_step_2_divs:
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; BTVER2: # BB#0:
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; BTVER2-NEXT: vmovaps {{.*#+}} ymm2 = [1.000000e+00,1.000000e+00,1.000000e+00,1.000000e+00,1.000000e+00,1.000000e+00,1.000000e+00,1.000000e+00]
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; BTVER2-NEXT: vrcpps %ymm0, %ymm1
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; BTVER2-NEXT: vmulps %ymm1, %ymm0, %ymm0
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; BTVER2-NEXT: vsubps %ymm0, %ymm2, %ymm0
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; BTVER2-NEXT: vmulps %ymm0, %ymm1, %ymm0
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; BTVER2-NEXT: vaddps %ymm0, %ymm1, %ymm0
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; BTVER2-NEXT: vmulps {{.*}}(%rip), %ymm0, %ymm1
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; BTVER2-NEXT: vmulps %ymm0, %ymm1, %ymm0
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; BTVER2-NEXT: retq
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;
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; SANDY-LABEL: v8f32_one_step_2_divs:
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; SANDY: # BB#0:
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; SANDY-NEXT: vrcpps %ymm0, %ymm1
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; SANDY-NEXT: vmulps %ymm1, %ymm0, %ymm0
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; SANDY-NEXT: vmovaps {{.*#+}} ymm2 = [1.000000e+00,1.000000e+00,1.000000e+00,1.000000e+00,1.000000e+00,1.000000e+00,1.000000e+00,1.000000e+00]
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; SANDY-NEXT: vsubps %ymm0, %ymm2, %ymm0
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; SANDY-NEXT: vmulps %ymm0, %ymm1, %ymm0
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; SANDY-NEXT: vaddps %ymm0, %ymm1, %ymm0
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; SANDY-NEXT: vmulps {{.*}}(%rip), %ymm0, %ymm1
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; SANDY-NEXT: vmulps %ymm0, %ymm1, %ymm0
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; SANDY-NEXT: retq
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;
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; HASWELL-LABEL: v8f32_one_step_2_divs:
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; HASWELL: # BB#0:
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; HASWELL-NEXT: vrcpps %ymm0, %ymm1
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; HASWELL-NEXT: vbroadcastss {{.*}}(%rip), %ymm2
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; HASWELL-NEXT: vfnmadd213ps %ymm2, %ymm1, %ymm0
|
||||
; HASWELL-NEXT: vfmadd132ps %ymm1, %ymm1, %ymm0
|
||||
; HASWELL-NEXT: vmulps {{.*}}(%rip), %ymm0, %ymm1
|
||||
; HASWELL-NEXT: vmulps %ymm0, %ymm1, %ymm0
|
||||
; HASWELL-NEXT: retq
|
||||
;
|
||||
; HASWELL-NO-FMA-LABEL: v8f32_one_step_2_divs:
|
||||
; HASWELL-NO-FMA: # BB#0:
|
||||
; HASWELL-NO-FMA-NEXT: vrcpps %ymm0, %ymm1
|
||||
; HASWELL-NO-FMA-NEXT: vmulps %ymm1, %ymm0, %ymm0
|
||||
; HASWELL-NO-FMA-NEXT: vbroadcastss {{.*}}(%rip), %ymm2
|
||||
; HASWELL-NO-FMA-NEXT: vsubps %ymm0, %ymm2, %ymm0
|
||||
; HASWELL-NO-FMA-NEXT: vmulps %ymm0, %ymm1, %ymm0
|
||||
; HASWELL-NO-FMA-NEXT: vaddps %ymm0, %ymm1, %ymm0
|
||||
; HASWELL-NO-FMA-NEXT: vmulps {{.*}}(%rip), %ymm0, %ymm1
|
||||
; HASWELL-NO-FMA-NEXT: vmulps %ymm0, %ymm1, %ymm0
|
||||
; HASWELL-NO-FMA-NEXT: retq
|
||||
;
|
||||
; KNL-LABEL: v8f32_one_step_2_divs:
|
||||
; KNL: # BB#0:
|
||||
; KNL-NEXT: vrcpps %ymm0, %ymm1
|
||||
; KNL-NEXT: vbroadcastss {{.*}}(%rip), %ymm2
|
||||
; KNL-NEXT: vfnmadd213ps %ymm2, %ymm1, %ymm0
|
||||
; KNL-NEXT: vfmadd132ps %ymm1, %ymm1, %ymm0
|
||||
; KNL-NEXT: vmulps {{.*}}(%rip), %ymm0, %ymm1
|
||||
; KNL-NEXT: vmulps %ymm0, %ymm1, %ymm0
|
||||
; KNL-NEXT: retq
|
||||
;
|
||||
; SKX-LABEL: v8f32_one_step_2_divs:
|
||||
; SKX: # BB#0:
|
||||
; SKX-NEXT: vrcp14ps %ymm0, %ymm1
|
||||
; SKX-NEXT: vfnmadd213ps {{.*}}(%rip){1to8}, %ymm1, %ymm0
|
||||
; SKX-NEXT: vfmadd132ps %ymm1, %ymm1, %ymm0
|
||||
; SKX-NEXT: vmulps {{.*}}(%rip), %ymm0, %ymm1
|
||||
; SKX-NEXT: vmulps %ymm0, %ymm1, %ymm0
|
||||
; SKX-NEXT: retq
|
||||
%div = fdiv fast <8 x float> <float 1.0, float 2.0, float 3.0, float 4.0, float 5.0, float 6.0, float 7.0, float 8.0>, %x
|
||||
%div2 = fdiv fast <8 x float> %div, %x
|
||||
ret <8 x float> %div2
|
||||
}
|
||||
|
||||
define <8 x float> @v8f32_two_step2(<8 x float> %x) #2 {
|
||||
; SSE-LABEL: v8f32_two_step2:
|
||||
; SSE: # BB#0:
|
||||
|
||||
Loading…
Reference in New Issue
Block a user