| ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py |
| ; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=sse2 -recip=!sqrtf,!vec-sqrtf,!divf,!vec-divf | FileCheck %s --check-prefix=NORECIP |
| ; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=avx -recip=sqrtf,vec-sqrtf | FileCheck %s --check-prefix=ESTIMATE |
| |
| declare double @__sqrt_finite(double) #0 |
| declare float @__sqrtf_finite(float) #0 |
| declare x86_fp80 @__sqrtl_finite(x86_fp80) #0 |
| declare float @llvm.sqrt.f32(float) #0 |
| declare <4 x float> @llvm.sqrt.v4f32(<4 x float>) #0 |
| declare <8 x float> @llvm.sqrt.v8f32(<8 x float>) #0 |
| |
| |
| define double @fd(double %d) #0 { |
| ; NORECIP-LABEL: fd: |
| ; NORECIP: # BB#0: |
| ; NORECIP-NEXT: sqrtsd %xmm0, %xmm0 |
| ; NORECIP-NEXT: retq |
| ; |
| ; ESTIMATE-LABEL: fd: |
| ; ESTIMATE: # BB#0: |
| ; ESTIMATE-NEXT: vsqrtsd %xmm0, %xmm0, %xmm0 |
| ; ESTIMATE-NEXT: retq |
| %call = tail call double @__sqrt_finite(double %d) #1 |
| ret double %call |
| } |
| |
| |
| define float @ff(float %f) #0 { |
| ; NORECIP-LABEL: ff: |
| ; NORECIP: # BB#0: |
| ; NORECIP-NEXT: sqrtss %xmm0, %xmm0 |
| ; NORECIP-NEXT: retq |
| ; |
| ; ESTIMATE-LABEL: ff: |
| ; ESTIMATE: # BB#0: |
| ; ESTIMATE-NEXT: vrsqrtss %xmm0, %xmm0, %xmm1 |
| ; ESTIMATE-NEXT: vmulss {{.*}}(%rip), %xmm1, %xmm2 |
| ; ESTIMATE-NEXT: vmulss %xmm0, %xmm1, %xmm3 |
| ; ESTIMATE-NEXT: vmulss %xmm3, %xmm1, %xmm1 |
| ; ESTIMATE-NEXT: vaddss {{.*}}(%rip), %xmm1, %xmm1 |
| ; ESTIMATE-NEXT: vmulss %xmm0, %xmm2, %xmm2 |
| ; ESTIMATE-NEXT: vmulss %xmm2, %xmm1, %xmm1 |
| ; ESTIMATE-NEXT: vxorps %xmm2, %xmm2, %xmm2 |
| ; ESTIMATE-NEXT: vcmpeqss %xmm2, %xmm0, %xmm0 |
| ; ESTIMATE-NEXT: vandnps %xmm1, %xmm0, %xmm0 |
| ; ESTIMATE-NEXT: retq |
| %call = tail call float @__sqrtf_finite(float %f) #1 |
| ret float %call |
| } |
| |
| |
| define x86_fp80 @fld(x86_fp80 %ld) #0 { |
| ; NORECIP-LABEL: fld: |
| ; NORECIP: # BB#0: |
| ; NORECIP-NEXT: fldt {{[0-9]+}}(%rsp) |
| ; NORECIP-NEXT: fsqrt |
| ; NORECIP-NEXT: retq |
| ; |
| ; ESTIMATE-LABEL: fld: |
| ; ESTIMATE: # BB#0: |
| ; ESTIMATE-NEXT: fldt {{[0-9]+}}(%rsp) |
| ; ESTIMATE-NEXT: fsqrt |
| ; ESTIMATE-NEXT: retq |
| %call = tail call x86_fp80 @__sqrtl_finite(x86_fp80 %ld) #1 |
| ret x86_fp80 %call |
| } |
| |
| |
| |
| define float @reciprocal_square_root(float %x) #0 { |
| ; NORECIP-LABEL: reciprocal_square_root: |
| ; NORECIP: # BB#0: |
| ; NORECIP-NEXT: sqrtss %xmm0, %xmm1 |
| ; NORECIP-NEXT: movss {{.*#+}} xmm0 = mem[0],zero,zero,zero |
| ; NORECIP-NEXT: divss %xmm1, %xmm0 |
| ; NORECIP-NEXT: retq |
| ; |
| ; ESTIMATE-LABEL: reciprocal_square_root: |
| ; ESTIMATE: # BB#0: |
| ; ESTIMATE-NEXT: vrsqrtss %xmm0, %xmm0, %xmm1 |
| ; ESTIMATE-NEXT: vmulss {{.*}}(%rip), %xmm1, %xmm2 |
| ; ESTIMATE-NEXT: vmulss %xmm0, %xmm1, %xmm0 |
| ; ESTIMATE-NEXT: vmulss %xmm0, %xmm1, %xmm0 |
| ; ESTIMATE-NEXT: vaddss {{.*}}(%rip), %xmm0, %xmm0 |
| ; ESTIMATE-NEXT: vmulss %xmm2, %xmm0, %xmm0 |
| ; ESTIMATE-NEXT: retq |
| %sqrt = tail call float @llvm.sqrt.f32(float %x) |
| %div = fdiv fast float 1.0, %sqrt |
| ret float %div |
| } |
| |
| define <4 x float> @reciprocal_square_root_v4f32(<4 x float> %x) #0 { |
| ; NORECIP-LABEL: reciprocal_square_root_v4f32: |
| ; NORECIP: # BB#0: |
| ; NORECIP-NEXT: sqrtps %xmm0, %xmm1 |
| ; NORECIP-NEXT: movaps {{.*#+}} xmm0 = [1.000000e+00,1.000000e+00,1.000000e+00,1.000000e+00] |
| ; NORECIP-NEXT: divps %xmm1, %xmm0 |
| ; NORECIP-NEXT: retq |
| ; |
| ; ESTIMATE-LABEL: reciprocal_square_root_v4f32: |
| ; ESTIMATE: # BB#0: |
| ; ESTIMATE-NEXT: vrsqrtps %xmm0, %xmm1 |
| ; ESTIMATE-NEXT: vmulps %xmm0, %xmm1, %xmm0 |
| ; ESTIMATE-NEXT: vmulps %xmm0, %xmm1, %xmm0 |
| ; ESTIMATE-NEXT: vaddps {{.*}}(%rip), %xmm0, %xmm0 |
| ; ESTIMATE-NEXT: vmulps {{.*}}(%rip), %xmm1, %xmm1 |
| ; ESTIMATE-NEXT: vmulps %xmm1, %xmm0, %xmm0 |
| ; ESTIMATE-NEXT: retq |
| %sqrt = tail call <4 x float> @llvm.sqrt.v4f32(<4 x float> %x) |
| %div = fdiv fast <4 x float> <float 1.0, float 1.0, float 1.0, float 1.0>, %sqrt |
| ret <4 x float> %div |
| } |
| |
| define <8 x float> @reciprocal_square_root_v8f32(<8 x float> %x) #0 { |
| ; NORECIP-LABEL: reciprocal_square_root_v8f32: |
| ; NORECIP: # BB#0: |
| ; NORECIP-NEXT: sqrtps %xmm1, %xmm2 |
| ; NORECIP-NEXT: sqrtps %xmm0, %xmm3 |
| ; NORECIP-NEXT: movaps {{.*#+}} xmm1 = [1.000000e+00,1.000000e+00,1.000000e+00,1.000000e+00] |
| ; NORECIP-NEXT: movaps %xmm1, %xmm0 |
| ; NORECIP-NEXT: divps %xmm3, %xmm0 |
| ; NORECIP-NEXT: divps %xmm2, %xmm1 |
| ; NORECIP-NEXT: retq |
| ; |
| ; ESTIMATE-LABEL: reciprocal_square_root_v8f32: |
| ; ESTIMATE: # BB#0: |
| ; ESTIMATE-NEXT: vrsqrtps %ymm0, %ymm1 |
| ; ESTIMATE-NEXT: vmulps %ymm0, %ymm1, %ymm0 |
| ; ESTIMATE-NEXT: vmulps %ymm0, %ymm1, %ymm0 |
| ; ESTIMATE-NEXT: vaddps {{.*}}(%rip), %ymm0, %ymm0 |
| ; ESTIMATE-NEXT: vmulps {{.*}}(%rip), %ymm1, %ymm1 |
| ; ESTIMATE-NEXT: vmulps %ymm1, %ymm0, %ymm0 |
| ; ESTIMATE-NEXT: retq |
| %sqrt = tail call <8 x float> @llvm.sqrt.v8f32(<8 x float> %x) |
| %div = fdiv fast <8 x float> <float 1.0, float 1.0, float 1.0, float 1.0, float 1.0, float 1.0, float 1.0, float 1.0>, %sqrt |
| ret <8 x float> %div |
| } |
| |
| |
| attributes #0 = { "unsafe-fp-math"="true" } |
| attributes #1 = { nounwind readnone } |
| |