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https://github.com/c64scene-ar/llvm-6502.git
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b83b28697c
Some functions are in X86RegisterInfo.cpp, others, because of the data they need, are in X86RegisterClasses.cpp, which also defines some register classes: byte, short, and int. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4784 91177308-0d34-0410-b5e6-96231b3b80d8
46 lines
1.5 KiB
C++
46 lines
1.5 KiB
C++
//===- X86RegisterInfo.cpp - X86 Register Information ---------------------===//
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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 "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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void X86RegisterInfo::copyReg2PCRel(MachineBasicBlock *MBB,
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MachineBasicBlock::iterator &MBBI,
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unsigned SrcReg, unsigned ImmOffset,
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unsigned dataSize) const
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{
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MachineInstrBuilder MI = BuildMI(X86::MOVmr32, 2)
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.addPCDisp(ConstantUInt::get(Type::UIntTy, ImmOffset)).addReg(SrcReg);
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MBB->insert(MBBI, &*MI);
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}
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void X86RegisterInfo::copyPCRel2Reg(MachineBasicBlock *MBB,
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MachineBasicBlock::iterator &MBBI,
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unsigned ImmOffset, unsigned DestReg,
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unsigned dataSize) const
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{
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MachineInstrBuilder MI = BuildMI(X86::MOVrm32, 2)
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.addReg(DestReg).addPCDisp(ConstantUInt::get(Type::UIntTy, ImmOffset));
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MBB->insert(MBBI, &*MI);
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}
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