; 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>)