From d67661ee2406ffac94cc8da1083a3c4887d53e4f Mon Sep 17 00:00:00 2001 From: Simon Pilgrim Date: Thu, 12 Sep 2019 20:39:56 +0000 Subject: [PATCH] [X86] Move negateFMAOpcode helper earlier to help future patch. NFCI. llvm-svn: 371770 --- llvm/lib/Target/X86/X86ISelLowering.cpp | 64 ++++++++++++++++----------------- 1 file changed, 32 insertions(+), 32 deletions(-) diff --git a/llvm/lib/Target/X86/X86ISelLowering.cpp b/llvm/lib/Target/X86/X86ISelLowering.cpp index 5a274cb..5726576 100644 --- a/llvm/lib/Target/X86/X86ISelLowering.cpp +++ b/llvm/lib/Target/X86/X86ISelLowering.cpp @@ -41818,6 +41818,38 @@ static SDValue isFNEG(SelectionDAG &DAG, SDNode *N) { return SDValue(); } +static unsigned negateFMAOpcode(unsigned Opcode, bool NegMul, bool NegAcc) { + if (NegMul) { + switch (Opcode) { + default: llvm_unreachable("Unexpected opcode"); + case ISD::FMA: Opcode = X86ISD::FNMADD; break; + case X86ISD::FMADD_RND: Opcode = X86ISD::FNMADD_RND; break; + case X86ISD::FMSUB: Opcode = X86ISD::FNMSUB; break; + case X86ISD::FMSUB_RND: Opcode = X86ISD::FNMSUB_RND; break; + case X86ISD::FNMADD: Opcode = ISD::FMA; break; + case X86ISD::FNMADD_RND: Opcode = X86ISD::FMADD_RND; break; + case X86ISD::FNMSUB: Opcode = X86ISD::FMSUB; break; + case X86ISD::FNMSUB_RND: Opcode = X86ISD::FMSUB_RND; break; + } + } + + if (NegAcc) { + switch (Opcode) { + default: llvm_unreachable("Unexpected opcode"); + case ISD::FMA: Opcode = X86ISD::FMSUB; break; + case X86ISD::FMADD_RND: Opcode = X86ISD::FMSUB_RND; break; + case X86ISD::FMSUB: Opcode = ISD::FMA; break; + case X86ISD::FMSUB_RND: Opcode = X86ISD::FMADD_RND; break; + case X86ISD::FNMADD: Opcode = X86ISD::FNMSUB; break; + case X86ISD::FNMADD_RND: Opcode = X86ISD::FNMSUB_RND; break; + case X86ISD::FNMSUB: Opcode = X86ISD::FNMADD; break; + case X86ISD::FNMSUB_RND: Opcode = X86ISD::FNMADD_RND; break; + } + } + + return Opcode; +} + /// Do target-specific dag combines on floating point negations. static SDValue combineFneg(SDNode *N, SelectionDAG &DAG, const X86Subtarget &Subtarget) { @@ -42798,38 +42830,6 @@ static SDValue combineSext(SDNode *N, SelectionDAG &DAG, return SDValue(); } -static unsigned negateFMAOpcode(unsigned Opcode, bool NegMul, bool NegAcc) { - if (NegMul) { - switch (Opcode) { - default: llvm_unreachable("Unexpected opcode"); - case ISD::FMA: Opcode = X86ISD::FNMADD; break; - case X86ISD::FMADD_RND: Opcode = X86ISD::FNMADD_RND; break; - case X86ISD::FMSUB: Opcode = X86ISD::FNMSUB; break; - case X86ISD::FMSUB_RND: Opcode = X86ISD::FNMSUB_RND; break; - case X86ISD::FNMADD: Opcode = ISD::FMA; break; - case X86ISD::FNMADD_RND: Opcode = X86ISD::FMADD_RND; break; - case X86ISD::FNMSUB: Opcode = X86ISD::FMSUB; break; - case X86ISD::FNMSUB_RND: Opcode = X86ISD::FMSUB_RND; break; - } - } - - if (NegAcc) { - switch (Opcode) { - default: llvm_unreachable("Unexpected opcode"); - case ISD::FMA: Opcode = X86ISD::FMSUB; break; - case X86ISD::FMADD_RND: Opcode = X86ISD::FMSUB_RND; break; - case X86ISD::FMSUB: Opcode = ISD::FMA; break; - case X86ISD::FMSUB_RND: Opcode = X86ISD::FMADD_RND; break; - case X86ISD::FNMADD: Opcode = X86ISD::FNMSUB; break; - case X86ISD::FNMADD_RND: Opcode = X86ISD::FNMSUB_RND; break; - case X86ISD::FNMSUB: Opcode = X86ISD::FNMADD; break; - case X86ISD::FNMSUB_RND: Opcode = X86ISD::FNMADD_RND; break; - } - } - - return Opcode; -} - static SDValue combineFMA(SDNode *N, SelectionDAG &DAG, const X86Subtarget &Subtarget) { SDLoc dl(N); -- 2.7.4