llvm/test/CodeGen/X86/combine-fma-negate.ll

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 5
; RUN: llc < %s -mtriple=x86_64-unknown-linux-gnu -mattr=+avx512f -mattr=+fma | FileCheck %s

define void @fma_neg(<8 x i1> %r280, ptr %pp1, ptr %pp2)  {
; CHECK-LABEL: fma_neg:
; CHECK:       # %bb.0:
; CHECK-NEXT:    vpmovsxwq %xmm0, %zmm0
; CHECK-NEXT:    vpsllq $63, %zmm0, %zmm0
; CHECK-NEXT:    vptestmq %zmm0, %zmm0, %k1
; CHECK-NEXT:    vmovdqu64 (%rdi), %zmm0
; CHECK-NEXT:    vpxorq {{\.?LCPI[0-9]+_[0-9]+}}(%rip){1to8}, %zmm0, %zmm1 {%k1} {z}
; CHECK-NEXT:    vxorpd %xmm2, %xmm2, %xmm2
; CHECK-NEXT:    vfnmadd213pd {{.*#+}} zmm2 = -(zmm0 * zmm2) + zmm1
; CHECK-NEXT:    vmovupd %zmm2, (%rsi)
; CHECK-NEXT:    vzeroupper
; CHECK-NEXT:    retq
  %r290 = load <8 x double>, ptr %pp1, align 8
  %r307 = fneg <8 x double> %r290
  %r309 = select <8 x i1> %r280, <8 x double> %r307, <8 x double> zeroinitializer
  %r311 = tail call <8 x double> @llvm.x86.avx512.vfmadd.pd.512(<8 x double> %r307, <8 x double> zeroinitializer, <8 x double> %r309, i32 4)
  store <8 x double> %r311, ptr %pp2, align 8
  ret void
}

declare <8 x double> @llvm.x86.avx512.vfmadd.pd.512(<8 x double>, <8 x double>, <8 x double>, i32 immarg)