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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s -mtriple=x86_64-unknown-linux-gnu -mattr=+avx,fma | FileCheck %s --check-prefix=FMA3
; RUN: llc < %s -mtriple=x86_64-unknown-linux-gnu -mattr=+avx,fma4 | FileCheck %s --check-prefix=FMA4
define float @test_fneg_fma_subx_y_negz_f32(float %w, float %x, float %y, float %z) {
; FMA3-LABEL: test_fneg_fma_subx_y_negz_f32:
; FMA3: # %bb.0: # %entry
; FMA3-NEXT: vsubss %xmm1, %xmm0, %xmm0
; FMA3-NEXT: vfnmadd213ss {{.*#+}} xmm0 = -(xmm2 * xmm0) + xmm3
; FMA3-NEXT: retq
;
; FMA4-LABEL: test_fneg_fma_subx_y_negz_f32:
; FMA4: # %bb.0: # %entry
; FMA4-NEXT: vsubss %xmm1, %xmm0, %xmm0
; FMA4-NEXT: vfnmaddss {{.*#+}} xmm0 = -(xmm0 * xmm2) + xmm3
; FMA4-NEXT: retq
entry:
%subx = fsub nsz float %w, %x
%negz = fsub float -0.000000e+00, %z
%0 = tail call nsz float @llvm.fma.f32(float %subx, float %y, float %negz)
%1 = fsub float -0.000000e+00, %0
ret float %1
}
define float @test_fneg_fma_x_suby_negz_f32(float %w, float %x, float %y, float %z) {
; FMA3-LABEL: test_fneg_fma_x_suby_negz_f32:
; FMA3: # %bb.0: # %entry
; FMA3-NEXT: vsubss %xmm2, %xmm0, %xmm0
; FMA3-NEXT: vfnmadd213ss {{.*#+}} xmm0 = -(xmm1 * xmm0) + xmm3
; FMA3-NEXT: retq
;
; FMA4-LABEL: test_fneg_fma_x_suby_negz_f32:
; FMA4: # %bb.0: # %entry
; FMA4-NEXT: vsubss %xmm2, %xmm0, %xmm0
; FMA4-NEXT: vfnmaddss {{.*#+}} xmm0 = -(xmm1 * xmm0) + xmm3
; FMA4-NEXT: retq
entry:
%suby = fsub nsz float %w, %y
%negz = fsub float -0.000000e+00, %z
%0 = tail call nsz float @llvm.fma.f32(float %x, float %suby, float %negz)
%1 = fsub float -0.000000e+00, %0
ret float %1
}
define float @test_fneg_fma_subx_suby_negz_f32(float %w, float %x, float %y, float %z) {
; FMA3-LABEL: test_fneg_fma_subx_suby_negz_f32:
; FMA3: # %bb.0: # %entry
; FMA3-NEXT: vsubss %xmm1, %xmm0, %xmm1
; FMA3-NEXT: vsubss %xmm2, %xmm0, %xmm0
; FMA3-NEXT: vfnmadd213ss {{.*#+}} xmm0 = -(xmm1 * xmm0) + xmm3
; FMA3-NEXT: retq
;
; FMA4-LABEL: test_fneg_fma_subx_suby_negz_f32:
; FMA4: # %bb.0: # %entry
; FMA4-NEXT: vsubss %xmm1, %xmm0, %xmm1
; FMA4-NEXT: vsubss %xmm2, %xmm0, %xmm0
; FMA4-NEXT: vfnmaddss {{.*#+}} xmm0 = -(xmm1 * xmm0) + xmm3
; FMA4-NEXT: retq
entry:
%subx = fsub nsz float %w, %x
%suby = fsub nsz float %w, %y
%negz = fsub float -0.000000e+00, %z
%0 = tail call nsz float @llvm.fma.f32(float %subx, float %suby, float %negz)
%1 = fsub float -0.000000e+00, %0
ret float %1
}
define float @test_fneg_fma_subx_negy_negz_f32(float %w, float %x, float %y, float %z) {
; FMA3-LABEL: test_fneg_fma_subx_negy_negz_f32:
; FMA3: # %bb.0: # %entry
; FMA3-NEXT: vsubss %xmm1, %xmm0, %xmm0
; FMA3-NEXT: vfmadd213ss {{.*#+}} xmm0 = (xmm2 * xmm0) + xmm3
; FMA3-NEXT: retq
;
; FMA4-LABEL: test_fneg_fma_subx_negy_negz_f32:
; FMA4: # %bb.0: # %entry
; FMA4-NEXT: vsubss %xmm1, %xmm0, %xmm0
; FMA4-NEXT: vfmaddss {{.*#+}} xmm0 = (xmm0 * xmm2) + xmm3
; FMA4-NEXT: retq
entry:
%subx = fsub nsz float %w, %x
%negy = fsub float -0.000000e+00, %y
%negz = fsub float -0.000000e+00, %z
%0 = tail call nsz float @llvm.fma.f32(float %subx, float %negy, float %negz)
%1 = fsub float -0.000000e+00, %0
ret float %1
}
define <4 x float> @test_fma_rcp_fneg_v4f32(<4 x float> %x, <4 x float> %y, <4 x float> %z) {
; FMA3-LABEL: test_fma_rcp_fneg_v4f32:
; FMA3: # %bb.0: # %entry
; FMA3-NEXT: vrcpps %xmm2, %xmm2
; FMA3-NEXT: vfmsub213ps {{.*#+}} xmm0 = (xmm1 * xmm0) - xmm2
; FMA3-NEXT: retq
;
; FMA4-LABEL: test_fma_rcp_fneg_v4f32:
; FMA4: # %bb.0: # %entry
; FMA4-NEXT: vrcpps %xmm2, %xmm2
; FMA4-NEXT: vfmsubps {{.*#+}} xmm0 = (xmm0 * xmm1) - xmm2
; FMA4-NEXT: retq
entry:
%0 = fneg <4 x float> %z
%1 = tail call <4 x float> @llvm.x86.sse.rcp.ps(<4 x float> %0)
%2 = tail call nsz <4 x float> @llvm.fma.v4f32(<4 x float> %x, <4 x float> %y, <4 x float> %1)
ret <4 x float> %2
}
declare <4 x float> @llvm.x86.sse.rcp.ps(<4 x float>)
; This would crash while trying getNegatedExpression().
define float @negated_constant(float %x) {
; FMA3-LABEL: negated_constant:
; FMA3: # %bb.0:
; FMA3-NEXT: vmulss {{\.?LCPI[0-9]+_[0-9]+}}(%rip), %xmm0, %xmm1
; FMA3-NEXT: vfnmsub132ss {{.*#+}} xmm0 = -(xmm0 * mem) - xmm1
; FMA3-NEXT: retq
;
; FMA4-LABEL: negated_constant:
; FMA4: # %bb.0:
; FMA4-NEXT: vmulss {{\.?LCPI[0-9]+_[0-9]+}}(%rip), %xmm0, %xmm1
; FMA4-NEXT: vfnmsubss {{.*#+}} xmm0 = -(xmm0 * mem) - xmm1
; FMA4-NEXT: retq
%m = fmul float %x, 42.0
%fma = call nsz float @llvm.fma.f32(float %x, float -42.0, float %m)
%nfma = fneg float %fma
ret float %nfma
}
declare float @llvm.fma.f32(float, float, float)
declare <4 x float> @llvm.fma.v4f32(<4 x float>, <4 x float>, <4 x float>)
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