combine-fabs.ll
4.45 KB
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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+sse4.1 | FileCheck %s --check-prefix=SSE
; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avx2 | FileCheck %s --check-prefix=AVX
;
; NOTE: this is generated by utils/update_llc_test_checks.py but we can't check NAN types (PR30443),
; so we need to edit it to remove the NAN constant comments
;
; fabs(c1) -> c2
define float @combine_fabs_constant() {
; SSE-LABEL: combine_fabs_constant:
; SSE: # %bb.0:
; SSE-NEXT: movss {{.*#+}} xmm0 = mem[0],zero,zero,zero
; SSE-NEXT: retq
;
; AVX-LABEL: combine_fabs_constant:
; AVX: # %bb.0:
; AVX-NEXT: vmovss {{.*#+}} xmm0 = mem[0],zero,zero,zero
; AVX-NEXT: retq
%1 = call float @llvm.fabs.f32(float -2.0)
ret float %1
}
define <4 x float> @combine_vec_fabs_constant() {
; SSE-LABEL: combine_vec_fabs_constant:
; SSE: # %bb.0:
; SSE-NEXT: movaps {{.*#+}} xmm0 = [0.0E+0,0.0E+0,2.0E+0,2.0E+0]
; SSE-NEXT: retq
;
; AVX-LABEL: combine_vec_fabs_constant:
; AVX: # %bb.0:
; AVX-NEXT: vmovaps {{.*#+}} xmm0 = [0.0E+0,0.0E+0,2.0E+0,2.0E+0]
; AVX-NEXT: retq
%1 = call <4 x float> @llvm.fabs.v4f32(<4 x float> <float 0.0, float -0.0, float 2.0, float -2.0>)
ret <4 x float> %1
}
; fabs(fabs(x)) -> fabs(x)
define float @combine_fabs_fabs(float %a) {
; SSE-LABEL: combine_fabs_fabs:
; SSE: # %bb.0:
; SSE-NEXT: andps {{.*}}(%rip), %xmm0
; SSE-NEXT: retq
;
; AVX-LABEL: combine_fabs_fabs:
; AVX: # %bb.0:
; AVX-NEXT: vbroadcastss {{.*#+}} xmm1 = [NaN,NaN,NaN,NaN]
; AVX-NEXT: vandps %xmm1, %xmm0, %xmm0
; AVX-NEXT: retq
%1 = call float @llvm.fabs.f32(float %a)
%2 = call float @llvm.fabs.f32(float %1)
ret float %2
}
define <4 x float> @combine_vec_fabs_fabs(<4 x float> %a) {
; SSE-LABEL: combine_vec_fabs_fabs:
; SSE: # %bb.0:
; SSE-NEXT: andps {{.*}}(%rip), %xmm0
; SSE-NEXT: retq
;
; AVX-LABEL: combine_vec_fabs_fabs:
; AVX: # %bb.0:
; AVX-NEXT: vbroadcastss {{.*#+}} xmm1 = [NaN,NaN,NaN,NaN]
; AVX-NEXT: vandps %xmm1, %xmm0, %xmm0
; AVX-NEXT: retq
%1 = call <4 x float> @llvm.fabs.v4f32(<4 x float> %a)
%2 = call <4 x float> @llvm.fabs.v4f32(<4 x float> %1)
ret <4 x float> %2
}
; fabs(fneg(x)) -> fabs(x)
define float @combine_fabs_fneg(float %a) {
; SSE-LABEL: combine_fabs_fneg:
; SSE: # %bb.0:
; SSE-NEXT: andps {{.*}}(%rip), %xmm0
; SSE-NEXT: retq
;
; AVX-LABEL: combine_fabs_fneg:
; AVX: # %bb.0:
; AVX-NEXT: vbroadcastss {{.*#+}} xmm1 = [NaN,NaN,NaN,NaN]
; AVX-NEXT: vandps %xmm1, %xmm0, %xmm0
; AVX-NEXT: retq
%1 = fsub float -0.0, %a
%2 = call float @llvm.fabs.f32(float %1)
ret float %2
}
define <4 x float> @combine_vec_fabs_fneg(<4 x float> %a) {
; SSE-LABEL: combine_vec_fabs_fneg:
; SSE: # %bb.0:
; SSE-NEXT: andps {{.*}}(%rip), %xmm0
; SSE-NEXT: retq
;
; AVX-LABEL: combine_vec_fabs_fneg:
; AVX: # %bb.0:
; AVX-NEXT: vbroadcastss {{.*#+}} xmm1 = [NaN,NaN,NaN,NaN]
; AVX-NEXT: vandps %xmm1, %xmm0, %xmm0
; AVX-NEXT: retq
%1 = fsub <4 x float> <float -0.0, float -0.0, float -0.0, float -0.0>, %a
%2 = call <4 x float> @llvm.fabs.v4f32(<4 x float> %1)
ret <4 x float> %2
}
; fabs(fcopysign(x, y)) -> fabs(x)
define float @combine_fabs_fcopysign(float %a, float %b) {
; SSE-LABEL: combine_fabs_fcopysign:
; SSE: # %bb.0:
; SSE-NEXT: andps {{.*}}(%rip), %xmm0
; SSE-NEXT: retq
;
; AVX-LABEL: combine_fabs_fcopysign:
; AVX: # %bb.0:
; AVX-NEXT: vbroadcastss {{.*#+}} xmm1 = [NaN,NaN,NaN,NaN]
; AVX-NEXT: vandps %xmm1, %xmm0, %xmm0
; AVX-NEXT: retq
%1 = call float @llvm.copysign.f32(float %a, float %b)
%2 = call float @llvm.fabs.f32(float %1)
ret float %2
}
define <4 x float> @combine_vec_fabs_fcopysign(<4 x float> %a, <4 x float> %b) {
; SSE-LABEL: combine_vec_fabs_fcopysign:
; SSE: # %bb.0:
; SSE-NEXT: andps {{.*}}(%rip), %xmm0
; SSE-NEXT: retq
;
; AVX-LABEL: combine_vec_fabs_fcopysign:
; AVX: # %bb.0:
; AVX-NEXT: vbroadcastss {{.*#+}} xmm1 = [NaN,NaN,NaN,NaN]
; AVX-NEXT: vandps %xmm1, %xmm0, %xmm0
; AVX-NEXT: retq
%1 = call <4 x float> @llvm.copysign.v4f32(<4 x float> %a, <4 x float> %b)
%2 = call <4 x float> @llvm.fabs.v4f32(<4 x float> %1)
ret <4 x float> %2
}
declare float @llvm.fabs.f32(float %p)
declare float @llvm.copysign.f32(float %Mag, float %Sgn)
declare <4 x float> @llvm.fabs.v4f32(<4 x float> %p)
declare <4 x float> @llvm.copysign.v4f32(<4 x float> %Mag, <4 x float> %Sgn)