; 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 %xmm1, %xmm0, %xmm2 ; ESTIMATE-NEXT: vmulss %xmm1, %xmm2, %xmm1 ; ESTIMATE-NEXT: vaddss {{.*}}(%rip), %xmm1, %xmm1 ; ESTIMATE-NEXT: vmulss {{.*}}(%rip), %xmm2, %xmm2 ; ESTIMATE-NEXT: vmulss %xmm1, %xmm2, %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 %xmm1, %xmm1, %xmm2 ; ESTIMATE-NEXT: vmulss %xmm2, %xmm0, %xmm0 ; ESTIMATE-NEXT: vaddss {{.*}}(%rip), %xmm0, %xmm0 ; ESTIMATE-NEXT: vmulss {{.*}}(%rip), %xmm1, %xmm1 ; ESTIMATE-NEXT: vmulss %xmm0, %xmm1, %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 %xmm1, %xmm1, %xmm2 ; ESTIMATE-NEXT: vmulps %xmm2, %xmm0, %xmm0 ; ESTIMATE-NEXT: vaddps {{.*}}(%rip), %xmm0, %xmm0 ; ESTIMATE-NEXT: vmulps {{.*}}(%rip), %xmm1, %xmm1 ; ESTIMATE-NEXT: vmulps %xmm0, %xmm1, %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 %ymm1, %ymm1, %ymm2 ; ESTIMATE-NEXT: vmulps %ymm2, %ymm0, %ymm0 ; ESTIMATE-NEXT: vaddps {{.*}}(%rip), %ymm0, %ymm0 ; ESTIMATE-NEXT: vmulps {{.*}}(%rip), %ymm1, %ymm1 ; ESTIMATE-NEXT: vmulps %ymm0, %ymm1, %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 }