From 5087daac23d841a5acb3b6d5a3e7857129ce558c Mon Sep 17 00:00:00 2001 From: Chris Lattner Date: Fri, 26 Aug 2005 21:49:18 +0000 Subject: [PATCH] Minor cleanups: * avoid calling getClass() multiple times (it is relatively expensive) * Allow -disable-fp-elim to turn of frame pointer elimination. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23104 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/Target/PowerPC/PPCRegisterInfo.cpp | 15 ++++++++------- 1 file changed, 8 insertions(+), 7 deletions(-) diff --git a/lib/Target/PowerPC/PPCRegisterInfo.cpp b/lib/Target/PowerPC/PPCRegisterInfo.cpp index 478af930f92..282f1e45676 100644 --- a/lib/Target/PowerPC/PPCRegisterInfo.cpp +++ b/lib/Target/PowerPC/PPCRegisterInfo.cpp @@ -81,11 +81,12 @@ PPC32RegisterInfo::storeRegToStackSlot(MachineBasicBlock &MBB, static const unsigned Opcode[] = { PPC::STB, PPC::STH, PPC::STW, PPC::STFS, PPC::STFD }; - unsigned OC = Opcode[getIdx(getClass(SrcReg))]; + const TargetRegisterClass *RegClass = getClass(SrcReg); + unsigned OC = Opcode[getIdx(RegClass)]; if (SrcReg == PPC::LR) { BuildMI(MBB, MI, PPC::MFLR, 1, PPC::R11); addFrameReference(BuildMI(MBB, MI, OC, 3).addReg(PPC::R11),FrameIdx); - } else if (PPC32::CRRCRegisterClass == getClass(SrcReg)) { + } else if (RegClass == PPC32::CRRCRegisterClass) { BuildMI(MBB, MI, PPC::MFCR, 0, PPC::R11); addFrameReference(BuildMI(MBB, MI, OC, 3).addReg(PPC::R11),FrameIdx); } else { @@ -96,15 +97,16 @@ PPC32RegisterInfo::storeRegToStackSlot(MachineBasicBlock &MBB, void PPC32RegisterInfo::loadRegFromStackSlot(MachineBasicBlock &MBB, MachineBasicBlock::iterator MI, - unsigned DestReg, int FrameIdx) const{ + unsigned DestReg, int FrameIdx) const { static const unsigned Opcode[] = { PPC::LBZ, PPC::LHZ, PPC::LWZ, PPC::LFS, PPC::LFD }; - unsigned OC = Opcode[getIdx(getClass(DestReg))]; + const TargetRegisterClass *RegClass = getClass(SrcReg); + unsigned OC = Opcode[getIdx(RegClass)]; if (DestReg == PPC::LR) { addFrameReference(BuildMI(MBB, MI, OC, 2, PPC::R11), FrameIdx); BuildMI(MBB, MI, PPC::MTLR, 1).addReg(PPC::R11); - } else if (PPC32::CRRCRegisterClass == getClass(DestReg)) { + } else if (RegClass == PPC32::CRRCRegisterClass) { addFrameReference(BuildMI(MBB, MI, OC, 2, PPC::R11), FrameIdx); BuildMI(MBB, MI, PPC::MTCRF, 1, DestReg).addReg(PPC::R11); } else { @@ -139,8 +141,7 @@ void PPC32RegisterInfo::copyRegToReg(MachineBasicBlock &MBB, // if frame pointer elimination is disabled. // static bool hasFP(MachineFunction &MF) { - MachineFrameInfo *MFI = MF.getFrameInfo(); - return MFI->hasVarSizedObjects(); + return NoFramePointerElim || MF.getFrameInfo()->hasVarSizedObjects(); } void PPC32RegisterInfo:: -- 2.34.1