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TheRock/compiler/amd-llvm/llvm/test/CodeGen/X86/combine-fma-negate.ll
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Flatten subprojects into a single base monorepo
2026-09-02 16:34:47 -07:00

26 lines
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LLVM

; 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)