-//===- X86RegisterInfo.cpp - X86 Register Information ---------------------===//
+//===- X86RegisterInfo.cpp - X86 Register Information -----------*- C++ -*-===//
//
// This file contains the X86 implementation of the MRegisterInfo class.
//
#include "X86.h"
#include "X86RegisterInfo.h"
+#include "X86InstrBuilder.h"
#include "llvm/Constants.h"
#include "llvm/Type.h"
#include "llvm/CodeGen/MachineInstrBuilder.h"
}
-void X86RegisterInfo::copyReg2PCRel(MachineBasicBlock *MBB,
+MachineBasicBlock::iterator
+X86RegisterInfo::storeReg2RegOffset(MachineBasicBlock *MBB,
MachineBasicBlock::iterator &MBBI,
- unsigned SrcReg, unsigned ImmOffset,
- unsigned dataSize) const
+ unsigned SrcReg, unsigned DestReg,
+ unsigned ImmOffset, unsigned dataSize)
+ const
{
- MachineInstrBuilder MI = BuildMI(X86::MOVmr32, 2)
- .addPCDisp(ConstantUInt::get(Type::UIntTy, ImmOffset)).addReg(SrcReg);
- MBB->insert(MBBI, &*MI);
+ MachineInstr *MI = addRegOffset(BuildMI(X86::MOVmr32, 5).addReg(SrcReg),
+ DestReg, ImmOffset);
+ return ++(MBB->insert(MBBI, MI));
}
-void X86RegisterInfo::copyPCRel2Reg(MachineBasicBlock *MBB,
- MachineBasicBlock::iterator &MBBI,
- unsigned ImmOffset, unsigned DestReg,
- unsigned dataSize) const
+MachineBasicBlock::iterator
+X86RegisterInfo::loadRegOffset2Reg(MachineBasicBlock *MBB,
+ MachineBasicBlock::iterator &MBBI,
+ unsigned DestReg, unsigned SrcReg,
+ unsigned ImmOffset, unsigned dataSize)
+ const
{
- MachineInstrBuilder MI = BuildMI(X86::MOVrm32, 2)
- .addReg(DestReg).addPCDisp(ConstantUInt::get(Type::UIntTy, ImmOffset));
- MBB->insert(MBBI, &*MI);
+ MachineInstr *MI = addRegOffset(BuildMI(X86::MOVrm32, 5).addReg(DestReg),
+ SrcReg, ImmOffset);
+ return ++(MBB->insert(MBBI, MI));
}
+
+unsigned X86RegisterInfo::getFramePointer() const {
+ return X86::EBP;
+}
+
+unsigned X86RegisterInfo::getStackPointer() const {
+ return X86::ESP;
+}
MRegisterInfo::const_iterator const_regclass_begin() const;
MRegisterInfo::const_iterator const_regclass_end() const;
- void copyReg2PCRel(MachineBasicBlock *MBB,
+ MachineBasicBlock::iterator
+ storeReg2RegOffset(MachineBasicBlock *MBB,
MachineBasicBlock::iterator &MBBI,
- unsigned SrcReg, unsigned ImmOffset,
- unsigned dataSize) const;
+ unsigned DestReg, unsigned SrcReg,
+ unsigned ImmOffset, unsigned dataSize) const;
- void copyPCRel2Reg(MachineBasicBlock *MBB,
- MachineBasicBlock::iterator &MBBI,
- unsigned ImmOffset, unsigned DestReg,
- unsigned dataSize) const;
+ MachineBasicBlock::iterator
+ loadRegOffset2Reg(MachineBasicBlock *MBB,
+ MachineBasicBlock::iterator &MBBI,
+ unsigned DestReg, unsigned SrcReg,
+ unsigned ImmOffset, unsigned dataSize) const;
+
+ unsigned getFramePointer() const;
+ unsigned getStackPointer() const;
/// Returns register class appropriate for input SSA register
///