diff --git a/llvm/lib/Target/X86/X86InstrFMA.td b/llvm/lib/Target/X86/X86InstrFMA.td index 49f8ff2263dc..0467a64d7e51 100644 --- a/llvm/lib/Target/X86/X86InstrFMA.td +++ b/llvm/lib/Target/X86/X86InstrFMA.td @@ -170,7 +170,7 @@ multiclass fma3s_rm opc, string OpcodeStr, // Commuting the 1st operand of FMA*_Int requires some additional analysis, // the commute optimization is legal only if all users of FMA*_Int use only // the lowest element of the FMA*_Int instruction. Even though such analysis -// may be not implemened yet we allow the routines doing the actual commute +// may be not implemented yet we allow the routines doing the actual commute // transformation to decide if one or another instruction is commutable or not. let Constraints = "$src1 = $dst", isCommutable = 1, isCodeGenOnly = 1, hasSideEffects = 0 in @@ -237,20 +237,12 @@ multiclass fma3s opc132, bits<8> opc213, bits<8> opc231, // require the pass-through values to come from the first source // operand, not the second. def : Pat<(IntF32 VR128:$src1, VR128:$src2, VR128:$src3), - (COPY_TO_REGCLASS - (!cast(NAME#"SSr213r_Int") - (COPY_TO_REGCLASS $src1, FR32), - (COPY_TO_REGCLASS $src2, FR32), - (COPY_TO_REGCLASS $src3, FR32)), - VR128)>; + (COPY_TO_REGCLASS(!cast(NAME#"SSr213r_Int") + $src1, $src2, $src3), VR128)>; def : Pat<(IntF64 VR128:$src1, VR128:$src2, VR128:$src3), - (COPY_TO_REGCLASS - (!cast(NAME#"SDr213r_Int") - (COPY_TO_REGCLASS $src1, FR64), - (COPY_TO_REGCLASS $src2, FR64), - (COPY_TO_REGCLASS $src3, FR64)), - VR128)>; + (COPY_TO_REGCLASS(!cast(NAME#"SDr213r_Int") + $src1, $src2, $src3), VR128)>; } defm VFMADD : fma3s<0x99, 0xA9, 0xB9, "vfmadd", int_x86_fma_vfmadd_ss, diff --git a/llvm/lib/Target/X86/X86InstrInfo.cpp b/llvm/lib/Target/X86/X86InstrInfo.cpp index aa635fc634ae..aaeef465bf50 100644 --- a/llvm/lib/Target/X86/X86InstrInfo.cpp +++ b/llvm/lib/Target/X86/X86InstrInfo.cpp @@ -5867,6 +5867,12 @@ static bool isNonFoldablePartialRegisterLoad(const MachineInstr &LoadMI, case X86::DIVSSrr_Int: case X86::VDIVSSrr_Int: case X86::MULSSrr_Int: case X86::VMULSSrr_Int: case X86::SUBSSrr_Int: case X86::VSUBSSrr_Int: + case X86::VFMADDSSr132r_Int: case X86::VFNMADDSSr132r_Int: + case X86::VFMADDSSr213r_Int: case X86::VFNMADDSSr213r_Int: + case X86::VFMADDSSr231r_Int: case X86::VFNMADDSSr231r_Int: + case X86::VFMSUBSSr132r_Int: case X86::VFNMSUBSSr132r_Int: + case X86::VFMSUBSSr213r_Int: case X86::VFNMSUBSSr213r_Int: + case X86::VFMSUBSSr231r_Int: case X86::VFNMSUBSSr231r_Int: return false; default: return true; @@ -5882,6 +5888,12 @@ static bool isNonFoldablePartialRegisterLoad(const MachineInstr &LoadMI, case X86::DIVSDrr_Int: case X86::VDIVSDrr_Int: case X86::MULSDrr_Int: case X86::VMULSDrr_Int: case X86::SUBSDrr_Int: case X86::VSUBSDrr_Int: + case X86::VFMADDSDr132r_Int: case X86::VFNMADDSDr132r_Int: + case X86::VFMADDSDr213r_Int: case X86::VFNMADDSDr213r_Int: + case X86::VFMADDSDr231r_Int: case X86::VFNMADDSDr231r_Int: + case X86::VFMSUBSDr132r_Int: case X86::VFNMSUBSDr132r_Int: + case X86::VFMSUBSDr213r_Int: case X86::VFNMSUBSDr213r_Int: + case X86::VFMSUBSDr231r_Int: case X86::VFNMSUBSDr231r_Int: return false; default: return true; diff --git a/llvm/test/CodeGen/X86/fma-scalar-memfold.ll b/llvm/test/CodeGen/X86/fma-scalar-memfold.ll new file mode 100644 index 000000000000..b6126ffe4fd6 --- /dev/null +++ b/llvm/test/CodeGen/X86/fma-scalar-memfold.ll @@ -0,0 +1,383 @@ +; RUN: llc < %s -mtriple=x86_64-pc-win32 -mcpu=core-avx2 | FileCheck %s + +attributes #0 = { nounwind } + +declare <4 x float> @llvm.x86.fma.vfmadd.ss(<4 x float>, <4 x float>, <4 x float>) +declare <4 x float> @llvm.x86.fma.vfmsub.ss(<4 x float>, <4 x float>, <4 x float>) +declare <4 x float> @llvm.x86.fma.vfnmadd.ss(<4 x float>, <4 x float>, <4 x float>) +declare <4 x float> @llvm.x86.fma.vfnmsub.ss(<4 x float>, <4 x float>, <4 x float>) + +declare <2 x double> @llvm.x86.fma.vfmadd.sd(<2 x double>, <2 x double>, <2 x double>) +declare <2 x double> @llvm.x86.fma.vfmsub.sd(<2 x double>, <2 x double>, <2 x double>) +declare <2 x double> @llvm.x86.fma.vfnmadd.sd(<2 x double>, <2 x double>, <2 x double>) +declare <2 x double> @llvm.x86.fma.vfnmsub.sd(<2 x double>, <2 x double>, <2 x double>) + +define void @fmadd_aab_ss(float* %a, float* %b) #0 { +; CHECK-LABEL: fmadd_aab_ss: +; CHECK: vmovss (%rcx), %[[XMM:xmm[0-9]+]] +; CHECK-NEXT: vfmadd213ss (%rdx), %[[XMM]], %[[XMM]] +; CHECK-NEXT: vmovss %[[XMM]], (%rcx) +; CHECK-NEXT: ret + %a.val = load float, float* %a + %av0 = insertelement <4 x float> undef, float %a.val, i32 0 + %av1 = insertelement <4 x float> %av0, float 0.000000e+00, i32 1 + %av2 = insertelement <4 x float> %av1, float 0.000000e+00, i32 2 + %av = insertelement <4 x float> %av2, float 0.000000e+00, i32 3 + + %b.val = load float, float* %b + %bv0 = insertelement <4 x float> undef, float %b.val, i32 0 + %bv1 = insertelement <4 x float> %bv0, float 0.000000e+00, i32 1 + %bv2 = insertelement <4 x float> %bv1, float 0.000000e+00, i32 2 + %bv = insertelement <4 x float> %bv2, float 0.000000e+00, i32 3 + + %vr = call <4 x float> @llvm.x86.fma.vfmadd.ss(<4 x float> %av, <4 x float> %av, <4 x float> %bv) + + %sr = extractelement <4 x float> %vr, i32 0 + store float %sr, float* %a + ret void +} + +define void @fmadd_aba_ss(float* %a, float* %b) #0 { +; CHECK-LABEL: fmadd_aba_ss: +; CHECK: vmovss (%rcx), %[[XMM:xmm[0-9]+]] +; CHECK-NEXT: vfmadd132ss (%rdx), %[[XMM]], %[[XMM]] +; CHECK-NEXT: vmovss %[[XMM]], (%rcx) +; CHECK-NEXT: ret + %a.val = load float, float* %a + %av0 = insertelement <4 x float> undef, float %a.val, i32 0 + %av1 = insertelement <4 x float> %av0, float 0.000000e+00, i32 1 + %av2 = insertelement <4 x float> %av1, float 0.000000e+00, i32 2 + %av = insertelement <4 x float> %av2, float 0.000000e+00, i32 3 + + %b.val = load float, float* %b + %bv0 = insertelement <4 x float> undef, float %b.val, i32 0 + %bv1 = insertelement <4 x float> %bv0, float 0.000000e+00, i32 1 + %bv2 = insertelement <4 x float> %bv1, float 0.000000e+00, i32 2 + %bv = insertelement <4 x float> %bv2, float 0.000000e+00, i32 3 + + %vr = call <4 x float> @llvm.x86.fma.vfmadd.ss(<4 x float> %av, <4 x float> %bv, <4 x float> %av) + + %sr = extractelement <4 x float> %vr, i32 0 + store float %sr, float* %a + ret void +} + +define void @fmsub_aab_ss(float* %a, float* %b) #0 { +; CHECK-LABEL: fmsub_aab_ss: +; CHECK: vmovss (%rcx), %[[XMM:xmm[0-9]+]] +; CHECK-NEXT: vfmsub213ss (%rdx), %[[XMM]], %[[XMM]] +; CHECK-NEXT: vmovss %[[XMM]], (%rcx) +; CHECK-NEXT: ret + %a.val = load float, float* %a + %av0 = insertelement <4 x float> undef, float %a.val, i32 0 + %av1 = insertelement <4 x float> %av0, float 0.000000e+00, i32 1 + %av2 = insertelement <4 x float> %av1, float 0.000000e+00, i32 2 + %av = insertelement <4 x float> %av2, float 0.000000e+00, i32 3 + + %b.val = load float, float* %b + %bv0 = insertelement <4 x float> undef, float %b.val, i32 0 + %bv1 = insertelement <4 x float> %bv0, float 0.000000e+00, i32 1 + %bv2 = insertelement <4 x float> %bv1, float 0.000000e+00, i32 2 + %bv = insertelement <4 x float> %bv2, float 0.000000e+00, i32 3 + + %vr = call <4 x float> @llvm.x86.fma.vfmsub.ss(<4 x float> %av, <4 x float> %av, <4 x float> %bv) + + %sr = extractelement <4 x float> %vr, i32 0 + store float %sr, float* %a + ret void +} + +define void @fmsub_aba_ss(float* %a, float* %b) #0 { +; CHECK-LABEL: fmsub_aba_ss: +; CHECK: vmovss (%rcx), %[[XMM:xmm[0-9]+]] +; CHECK-NEXT: vfmsub132ss (%rdx), %[[XMM]], %[[XMM]] +; CHECK-NEXT: vmovss %[[XMM]], (%rcx) +; CHECK-NEXT: ret + %a.val = load float, float* %a + %av0 = insertelement <4 x float> undef, float %a.val, i32 0 + %av1 = insertelement <4 x float> %av0, float 0.000000e+00, i32 1 + %av2 = insertelement <4 x float> %av1, float 0.000000e+00, i32 2 + %av = insertelement <4 x float> %av2, float 0.000000e+00, i32 3 + + %b.val = load float, float* %b + %bv0 = insertelement <4 x float> undef, float %b.val, i32 0 + %bv1 = insertelement <4 x float> %bv0, float 0.000000e+00, i32 1 + %bv2 = insertelement <4 x float> %bv1, float 0.000000e+00, i32 2 + %bv = insertelement <4 x float> %bv2, float 0.000000e+00, i32 3 + + %vr = call <4 x float> @llvm.x86.fma.vfmsub.ss(<4 x float> %av, <4 x float> %bv, <4 x float> %av) + + %sr = extractelement <4 x float> %vr, i32 0 + store float %sr, float* %a + ret void +} + +define void @fnmadd_aab_ss(float* %a, float* %b) #0 { +; CHECK-LABEL: fnmadd_aab_ss: +; CHECK: vmovss (%rcx), %[[XMM:xmm[0-9]+]] +; CHECK-NEXT: vfnmadd213ss (%rdx), %[[XMM]], %[[XMM]] +; CHECK-NEXT: vmovss %[[XMM]], (%rcx) +; CHECK-NEXT: ret + %a.val = load float, float* %a + %av0 = insertelement <4 x float> undef, float %a.val, i32 0 + %av1 = insertelement <4 x float> %av0, float 0.000000e+00, i32 1 + %av2 = insertelement <4 x float> %av1, float 0.000000e+00, i32 2 + %av = insertelement <4 x float> %av2, float 0.000000e+00, i32 3 + + %b.val = load float, float* %b + %bv0 = insertelement <4 x float> undef, float %b.val, i32 0 + %bv1 = insertelement <4 x float> %bv0, float 0.000000e+00, i32 1 + %bv2 = insertelement <4 x float> %bv1, float 0.000000e+00, i32 2 + %bv = insertelement <4 x float> %bv2, float 0.000000e+00, i32 3 + + %vr = call <4 x float> @llvm.x86.fma.vfnmadd.ss(<4 x float> %av, <4 x float> %av, <4 x float> %bv) + + %sr = extractelement <4 x float> %vr, i32 0 + store float %sr, float* %a + ret void +} + +define void @fnmadd_aba_ss(float* %a, float* %b) #0 { +; CHECK-LABEL: fnmadd_aba_ss: +; CHECK: vmovss (%rcx), %[[XMM:xmm[0-9]+]] +; CHECK-NEXT: vfnmadd132ss (%rdx), %[[XMM]], %[[XMM]] +; CHECK-NEXT: vmovss %[[XMM]], (%rcx) +; CHECK-NEXT: ret + %a.val = load float, float* %a + %av0 = insertelement <4 x float> undef, float %a.val, i32 0 + %av1 = insertelement <4 x float> %av0, float 0.000000e+00, i32 1 + %av2 = insertelement <4 x float> %av1, float 0.000000e+00, i32 2 + %av = insertelement <4 x float> %av2, float 0.000000e+00, i32 3 + + %b.val = load float, float* %b + %bv0 = insertelement <4 x float> undef, float %b.val, i32 0 + %bv1 = insertelement <4 x float> %bv0, float 0.000000e+00, i32 1 + %bv2 = insertelement <4 x float> %bv1, float 0.000000e+00, i32 2 + %bv = insertelement <4 x float> %bv2, float 0.000000e+00, i32 3 + + %vr = call <4 x float> @llvm.x86.fma.vfnmadd.ss(<4 x float> %av, <4 x float> %bv, <4 x float> %av) + + %sr = extractelement <4 x float> %vr, i32 0 + store float %sr, float* %a + ret void +} + +define void @fnmsub_aab_ss(float* %a, float* %b) #0 { +; CHECK-LABEL: fnmsub_aab_ss: +; CHECK: vmovss (%rcx), %[[XMM:xmm[0-9]+]] +; CHECK-NEXT: vfnmsub213ss (%rdx), %[[XMM]], %[[XMM]] +; CHECK-NEXT: vmovss %[[XMM]], (%rcx) +; CHECK-NEXT: ret + %a.val = load float, float* %a + %av0 = insertelement <4 x float> undef, float %a.val, i32 0 + %av1 = insertelement <4 x float> %av0, float 0.000000e+00, i32 1 + %av2 = insertelement <4 x float> %av1, float 0.000000e+00, i32 2 + %av = insertelement <4 x float> %av2, float 0.000000e+00, i32 3 + + %b.val = load float, float* %b + %bv0 = insertelement <4 x float> undef, float %b.val, i32 0 + %bv1 = insertelement <4 x float> %bv0, float 0.000000e+00, i32 1 + %bv2 = insertelement <4 x float> %bv1, float 0.000000e+00, i32 2 + %bv = insertelement <4 x float> %bv2, float 0.000000e+00, i32 3 + + %vr = call <4 x float> @llvm.x86.fma.vfnmsub.ss(<4 x float> %av, <4 x float> %av, <4 x float> %bv) + + %sr = extractelement <4 x float> %vr, i32 0 + store float %sr, float* %a + ret void +} + +define void @fnmsub_aba_ss(float* %a, float* %b) #0 { +; CHECK-LABEL: fnmsub_aba_ss: +; CHECK: vmovss (%rcx), %[[XMM:xmm[0-9]+]] +; CHECK-NEXT: vfnmsub132ss (%rdx), %[[XMM]], %[[XMM]] +; CHECK-NEXT: vmovss %[[XMM]], (%rcx) +; CHECK-NEXT: ret + %a.val = load float, float* %a + %av0 = insertelement <4 x float> undef, float %a.val, i32 0 + %av1 = insertelement <4 x float> %av0, float 0.000000e+00, i32 1 + %av2 = insertelement <4 x float> %av1, float 0.000000e+00, i32 2 + %av = insertelement <4 x float> %av2, float 0.000000e+00, i32 3 + + %b.val = load float, float* %b + %bv0 = insertelement <4 x float> undef, float %b.val, i32 0 + %bv1 = insertelement <4 x float> %bv0, float 0.000000e+00, i32 1 + %bv2 = insertelement <4 x float> %bv1, float 0.000000e+00, i32 2 + %bv = insertelement <4 x float> %bv2, float 0.000000e+00, i32 3 + + %vr = call <4 x float> @llvm.x86.fma.vfnmsub.ss(<4 x float> %av, <4 x float> %bv, <4 x float> %av) + + %sr = extractelement <4 x float> %vr, i32 0 + store float %sr, float* %a + ret void +} + +define void @fmadd_aab_sd(double* %a, double* %b) #0 { +; CHECK-LABEL: fmadd_aab_sd: +; CHECK: vmovsd (%rcx), %[[XMM:xmm[0-9]+]] +; CHECK-NEXT: vfmadd213sd (%rdx), %[[XMM]], %[[XMM]] +; CHECK-NEXT: vmovlps %[[XMM]], (%rcx) +; CHECK-NEXT: ret + %a.val = load double, double* %a + %av0 = insertelement <2 x double> undef, double %a.val, i32 0 + %av = insertelement <2 x double> %av0, double 0.000000e+00, i32 1 + + %b.val = load double, double* %b + %bv0 = insertelement <2 x double> undef, double %b.val, i32 0 + %bv = insertelement <2 x double> %bv0, double 0.000000e+00, i32 1 + + %vr = call <2 x double> @llvm.x86.fma.vfmadd.sd(<2 x double> %av, <2 x double> %av, <2 x double> %bv) + + %sr = extractelement <2 x double> %vr, i32 0 + store double %sr, double* %a + ret void +} + +define void @fmadd_aba_sd(double* %a, double* %b) #0 { +; CHECK-LABEL: fmadd_aba_sd: +; CHECK: vmovsd (%rcx), %[[XMM:xmm[0-9]+]] +; CHECK-NEXT: vfmadd132sd (%rdx), %[[XMM]], %[[XMM]] +; CHECK-NEXT: vmovlps %[[XMM]], (%rcx) +; CHECK-NEXT: ret + %a.val = load double, double* %a + %av0 = insertelement <2 x double> undef, double %a.val, i32 0 + %av = insertelement <2 x double> %av0, double 0.000000e+00, i32 1 + + %b.val = load double, double* %b + %bv0 = insertelement <2 x double> undef, double %b.val, i32 0 + %bv = insertelement <2 x double> %bv0, double 0.000000e+00, i32 1 + + %vr = call <2 x double> @llvm.x86.fma.vfmadd.sd(<2 x double> %av, <2 x double> %bv, <2 x double> %av) + + %sr = extractelement <2 x double> %vr, i32 0 + store double %sr, double* %a + ret void +} + +define void @fmsub_aab_sd(double* %a, double* %b) #0 { +; CHECK-LABEL: fmsub_aab_sd: +; CHECK: vmovsd (%rcx), %[[XMM:xmm[0-9]+]] +; CHECK-NEXT: vfmsub213sd (%rdx), %[[XMM]], %[[XMM]] +; CHECK-NEXT: vmovlps %[[XMM]], (%rcx) +; CHECK-NEXT: ret + %a.val = load double, double* %a + %av0 = insertelement <2 x double> undef, double %a.val, i32 0 + %av = insertelement <2 x double> %av0, double 0.000000e+00, i32 1 + + %b.val = load double, double* %b + %bv0 = insertelement <2 x double> undef, double %b.val, i32 0 + %bv = insertelement <2 x double> %bv0, double 0.000000e+00, i32 1 + + %vr = call <2 x double> @llvm.x86.fma.vfmsub.sd(<2 x double> %av, <2 x double> %av, <2 x double> %bv) + + %sr = extractelement <2 x double> %vr, i32 0 + store double %sr, double* %a + ret void +} + +define void @fmsub_aba_sd(double* %a, double* %b) #0 { +; CHECK-LABEL: fmsub_aba_sd: +; CHECK: vmovsd (%rcx), %[[XMM:xmm[0-9]+]] +; CHECK-NEXT: vfmsub132sd (%rdx), %[[XMM]], %[[XMM]] +; CHECK-NEXT: vmovlps %[[XMM]], (%rcx) +; CHECK-NEXT: ret + %a.val = load double, double* %a + %av0 = insertelement <2 x double> undef, double %a.val, i32 0 + %av = insertelement <2 x double> %av0, double 0.000000e+00, i32 1 + + %b.val = load double, double* %b + %bv0 = insertelement <2 x double> undef, double %b.val, i32 0 + %bv = insertelement <2 x double> %bv0, double 0.000000e+00, i32 1 + + %vr = call <2 x double> @llvm.x86.fma.vfmsub.sd(<2 x double> %av, <2 x double> %bv, <2 x double> %av) + + %sr = extractelement <2 x double> %vr, i32 0 + store double %sr, double* %a + ret void +} + +define void @fnmadd_aab_sd(double* %a, double* %b) #0 { +; CHECK-LABEL: fnmadd_aab_sd: +; CHECK: vmovsd (%rcx), %[[XMM:xmm[0-9]+]] +; CHECK-NEXT: vfnmadd213sd (%rdx), %[[XMM]], %[[XMM]] +; CHECK-NEXT: vmovlps %[[XMM]], (%rcx) +; CHECK-NEXT: ret + %a.val = load double, double* %a + %av0 = insertelement <2 x double> undef, double %a.val, i32 0 + %av = insertelement <2 x double> %av0, double 0.000000e+00, i32 1 + + %b.val = load double, double* %b + %bv0 = insertelement <2 x double> undef, double %b.val, i32 0 + %bv = insertelement <2 x double> %bv0, double 0.000000e+00, i32 1 + + %vr = call <2 x double> @llvm.x86.fma.vfnmadd.sd(<2 x double> %av, <2 x double> %av, <2 x double> %bv) + + %sr = extractelement <2 x double> %vr, i32 0 + store double %sr, double* %a + ret void +} + +define void @fnmadd_aba_sd(double* %a, double* %b) #0 { +; CHECK-LABEL: fnmadd_aba_sd: +; CHECK: vmovsd (%rcx), %[[XMM:xmm[0-9]+]] +; CHECK-NEXT: vfnmadd132sd (%rdx), %[[XMM]], %[[XMM]] +; CHECK-NEXT: vmovlps %[[XMM]], (%rcx) +; CHECK-NEXT: ret + %a.val = load double, double* %a + %av0 = insertelement <2 x double> undef, double %a.val, i32 0 + %av = insertelement <2 x double> %av0, double 0.000000e+00, i32 1 + + %b.val = load double, double* %b + %bv0 = insertelement <2 x double> undef, double %b.val, i32 0 + %bv = insertelement <2 x double> %bv0, double 0.000000e+00, i32 1 + + %vr = call <2 x double> @llvm.x86.fma.vfnmadd.sd(<2 x double> %av, <2 x double> %bv, <2 x double> %av) + + %sr = extractelement <2 x double> %vr, i32 0 + store double %sr, double* %a + ret void +} + +define void @fnmsub_aab_sd(double* %a, double* %b) #0 { +; CHECK-LABEL: fnmsub_aab_sd: +; CHECK: vmovsd (%rcx), %[[XMM:xmm[0-9]+]] +; CHECK-NEXT: vfnmsub213sd (%rdx), %[[XMM]], %[[XMM]] +; CHECK-NEXT: vmovlps %[[XMM]], (%rcx) +; CHECK-NEXT: ret + %a.val = load double, double* %a + %av0 = insertelement <2 x double> undef, double %a.val, i32 0 + %av = insertelement <2 x double> %av0, double 0.000000e+00, i32 1 + + %b.val = load double, double* %b + %bv0 = insertelement <2 x double> undef, double %b.val, i32 0 + %bv = insertelement <2 x double> %bv0, double 0.000000e+00, i32 1 + + %vr = call <2 x double> @llvm.x86.fma.vfnmsub.sd(<2 x double> %av, <2 x double> %av, <2 x double> %bv) + + %sr = extractelement <2 x double> %vr, i32 0 + store double %sr, double* %a + ret void +} + +define void @fnmsub_aba_sd(double* %a, double* %b) #0 { +; CHECK-LABEL: fnmsub_aba_sd: +; CHECK: vmovsd (%rcx), %[[XMM:xmm[0-9]+]] +; CHECK-NEXT: vfnmsub132sd (%rdx), %[[XMM]], %[[XMM]] +; CHECK-NEXT: vmovlps %[[XMM]], (%rcx) +; CHECK-NEXT: ret + %a.val = load double, double* %a + %av0 = insertelement <2 x double> undef, double %a.val, i32 0 + %av = insertelement <2 x double> %av0, double 0.000000e+00, i32 1 + + %b.val = load double, double* %b + %bv0 = insertelement <2 x double> undef, double %b.val, i32 0 + %bv = insertelement <2 x double> %bv0, double 0.000000e+00, i32 1 + + %vr = call <2 x double> @llvm.x86.fma.vfnmsub.sd(<2 x double> %av, <2 x double> %bv, <2 x double> %av) + + %sr = extractelement <2 x double> %vr, i32 0 + store double %sr, double* %a + ret void +} + +