1 ; RUN: llc < %s -mtriple=x86_64-unknown-unknown -O2 -mcpu=nehalem | FileCheck %s --check-prefix=SCALAR-EST --check-prefix=VECTOR-EST 2 ; RUN: llc < %s -mtriple=x86_64-unknown-unknown -O2 -mcpu=sandybridge | FileCheck %s --check-prefix=SCALAR-ACC --check-prefix=VECTOR-EST 3 ; RUN: llc < %s -mtriple=x86_64-unknown-unknown -O2 -mcpu=broadwell | FileCheck %s --check-prefix=SCALAR-ACC --check-prefix=VECTOR-EST 4 ; RUN: llc < %s -mtriple=x86_64-unknown-unknown -O2 -mcpu=skylake | FileCheck %s --check-prefix=SCALAR-ACC --check-prefix=VECTOR-ACC 5 6 ; RUN: llc < %s -mtriple=x86_64-unknown-unknown -O2 -mattr=+fast-scalar-fsqrt,-fast-vector-fsqrt | FileCheck %s --check-prefix=SCALAR-ACC --check-prefix=VECTOR-EST 7 ; RUN: llc < %s -mtriple=x86_64-unknown-unknown -O2 -mattr=-fast-scalar-fsqrt,+fast-vector-fsqrt | FileCheck %s --check-prefix=SCALAR-EST --check-prefix=VECTOR-ACC 8 9 declare float @llvm.sqrt.f32(float) #0 10 declare <4 x float> @llvm.sqrt.v4f32(<4 x float>) #0 11 declare <8 x float> @llvm.sqrt.v8f32(<8 x float>) #0 12 13 define float @foo_x1(float %f) #0 { 14 ; SCALAR-EST-LABEL: foo_x1: 15 ; SCALAR-EST: # %bb.0: 16 ; SCALAR-EST-NEXT: rsqrtss %xmm0 17 ; SCALAR-EST: retq 18 ; 19 ; SCALAR-ACC-LABEL: foo_x1: 20 ; SCALAR-ACC: # %bb.0: 21 ; SCALAR-ACC-NEXT: {{^ *v?sqrtss %xmm0}} 22 ; SCALAR-ACC-NEXT: retq 23 %call = tail call float @llvm.sqrt.f32(float %f) #1 24 ret float %call 25 } 26 27 define <4 x float> @foo_x4(<4 x float> %f) #0 { 28 ; VECTOR-EST-LABEL: foo_x4: 29 ; VECTOR-EST: # %bb.0: 30 ; VECTOR-EST-NEXT: rsqrtps %xmm0 31 ; VECTOR-EST: retq 32 ; 33 ; VECTOR-ACC-LABEL: foo_x4: 34 ; VECTOR-ACC: # %bb.0: 35 ; VECTOR-ACC-NEXT: {{^ *v?sqrtps %xmm0}} 36 ; VECTOR-ACC-NEXT: retq 37 %call = tail call <4 x float> @llvm.sqrt.v4f32(<4 x float> %f) #1 38 ret <4 x float> %call 39 } 40 41 define <8 x float> @foo_x8(<8 x float> %f) #0 { 42 ; VECTOR-EST-LABEL: foo_x8: 43 ; VECTOR-EST: # %bb.0: 44 ; VECTOR-EST-NEXT: rsqrtps 45 ; VECTOR-EST: retq 46 ; 47 ; VECTOR-ACC-LABEL: foo_x8: 48 ; VECTOR-ACC: # %bb.0: 49 ; VECTOR-ACC-NEXT: {{^ *v?sqrtps %[xy]mm0}} 50 ; VECTOR-ACC-NOT: rsqrt 51 ; VECTOR-ACC: retq 52 %call = tail call <8 x float> @llvm.sqrt.v8f32(<8 x float> %f) #1 53 ret <8 x float> %call 54 } 55 56 attributes #0 = { "unsafe-fp-math"="true" } 57 attributes #1 = { nounwind readnone } 58
