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instructions correctly. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4830 91177308-0d34-0410-b5e6-96231b3b80d8
59 lines
1.8 KiB
C++
59 lines
1.8 KiB
C++
//===- X86RegisterInfo.cpp - X86 Register Information -----------*- C++ -*-===//
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//
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// This file contains the X86 implementation of the MRegisterInfo class.
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//
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//===----------------------------------------------------------------------===//
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#include "X86.h"
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#include "X86RegisterInfo.h"
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#include "X86InstrBuilder.h"
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#include "llvm/Constants.h"
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#include "llvm/Type.h"
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#include "llvm/CodeGen/MachineInstrBuilder.h"
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// X86Regs - Turn the X86RegisterInfo.def file into a bunch of register
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// descriptors
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//
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static const MRegisterDesc X86Regs[] = {
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#define R(ENUM, NAME, FLAGS, TSFLAGS) { NAME, FLAGS, TSFLAGS },
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#include "X86RegisterInfo.def"
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};
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X86RegisterInfo::X86RegisterInfo()
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: MRegisterInfo(X86Regs, sizeof(X86Regs)/sizeof(X86Regs[0])) {
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}
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MachineBasicBlock::iterator
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X86RegisterInfo::storeReg2RegOffset(MachineBasicBlock *MBB,
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MachineBasicBlock::iterator &MBBI,
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unsigned SrcReg, unsigned DestReg,
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unsigned ImmOffset, unsigned dataSize)
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const
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{
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MachineInstr *MI = addRegOffset(BuildMI(X86::MOVrm32, 5).addReg(SrcReg),
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DestReg, ImmOffset);
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return ++(MBB->insert(MBBI, MI));
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}
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MachineBasicBlock::iterator
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X86RegisterInfo::loadRegOffset2Reg(MachineBasicBlock *MBB,
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MachineBasicBlock::iterator &MBBI,
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unsigned DestReg, unsigned SrcReg,
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unsigned ImmOffset, unsigned dataSize)
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const
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{
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MachineInstr *MI = addRegOffset(BuildMI(X86::MOVmr32, 5).addReg(DestReg),
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SrcReg, ImmOffset);
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return ++(MBB->insert(MBBI, MI));
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}
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unsigned X86RegisterInfo::getFramePointer() const {
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return X86::EBP;
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}
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unsigned X86RegisterInfo::getStackPointer() const {
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return X86::ESP;
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}
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