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58 lines
2.2 KiB
LLVM
58 lines
2.2 KiB
LLVM
; RUN: llc < %s -mtriple=x86_64-unknown-unknown -O2 -mcpu=nehalem | FileCheck %s --check-prefix=SCALAR-EST --check-prefix=VECTOR-EST
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; RUN: llc < %s -mtriple=x86_64-unknown-unknown -O2 -mcpu=sandybridge | FileCheck %s --check-prefix=SCALAR-ACC --check-prefix=VECTOR-EST
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; RUN: llc < %s -mtriple=x86_64-unknown-unknown -O2 -mcpu=broadwell | FileCheck %s --check-prefix=SCALAR-ACC --check-prefix=VECTOR-EST
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; RUN: llc < %s -mtriple=x86_64-unknown-unknown -O2 -mcpu=skylake | FileCheck %s --check-prefix=SCALAR-ACC --check-prefix=VECTOR-ACC
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; 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
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; 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
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declare float @llvm.sqrt.f32(float) #0
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declare <4 x float> @llvm.sqrt.v4f32(<4 x float>) #0
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declare <8 x float> @llvm.sqrt.v8f32(<8 x float>) #0
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define float @foo_x1(float %f) #0 {
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; SCALAR-EST-LABEL: foo_x1:
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; SCALAR-EST: # %bb.0:
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; SCALAR-EST-NEXT: rsqrtss %xmm0
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; SCALAR-EST: retq
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;
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; SCALAR-ACC-LABEL: foo_x1:
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; SCALAR-ACC: # %bb.0:
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; SCALAR-ACC-NEXT: {{^ *v?sqrtss %xmm0}}
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; SCALAR-ACC-NEXT: retq
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%call = tail call float @llvm.sqrt.f32(float %f) #1
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ret float %call
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}
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define <4 x float> @foo_x4(<4 x float> %f) #0 {
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; VECTOR-EST-LABEL: foo_x4:
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; VECTOR-EST: # %bb.0:
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; VECTOR-EST-NEXT: rsqrtps %xmm0
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; VECTOR-EST: retq
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;
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; VECTOR-ACC-LABEL: foo_x4:
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; VECTOR-ACC: # %bb.0:
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; VECTOR-ACC-NEXT: {{^ *v?sqrtps %xmm0}}
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; VECTOR-ACC-NEXT: retq
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%call = tail call <4 x float> @llvm.sqrt.v4f32(<4 x float> %f) #1
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ret <4 x float> %call
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}
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define <8 x float> @foo_x8(<8 x float> %f) #0 {
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; VECTOR-EST-LABEL: foo_x8:
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; VECTOR-EST: # %bb.0:
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; VECTOR-EST-NEXT: rsqrtps
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; VECTOR-EST: retq
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;
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; VECTOR-ACC-LABEL: foo_x8:
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; VECTOR-ACC: # %bb.0:
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; VECTOR-ACC-NEXT: {{^ *v?sqrtps %[xy]mm0}}
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; VECTOR-ACC-NOT: rsqrt
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; VECTOR-ACC: retq
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%call = tail call <8 x float> @llvm.sqrt.v8f32(<8 x float> %f) #1
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ret <8 x float> %call
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}
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attributes #0 = { "unsafe-fp-math"="true" }
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attributes #1 = { nounwind readnone }
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