mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-08-30 21:29:28 +00:00
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64891 91177308-0d34-0410-b5e6-96231b3b80d8
192 lines
6.7 KiB
C++
192 lines
6.7 KiB
C++
//===-- CodeGen/MachineInstBuilder.h - Simplify creation of MIs -*- C++ -*-===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// This file exposes a function named BuildMI, which is useful for dramatically
|
|
// simplifying how MachineInstr's are created. It allows use of code like this:
|
|
//
|
|
// M = BuildMI(X86::ADDrr8, 2).addReg(argVal1).addReg(argVal2);
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef LLVM_CODEGEN_MACHINEINSTRBUILDER_H
|
|
#define LLVM_CODEGEN_MACHINEINSTRBUILDER_H
|
|
|
|
#include "llvm/CodeGen/MachineFunction.h"
|
|
|
|
namespace llvm {
|
|
|
|
class TargetInstrDesc;
|
|
|
|
class MachineInstrBuilder {
|
|
MachineInstr *MI;
|
|
public:
|
|
explicit MachineInstrBuilder(MachineInstr *mi) : MI(mi) {}
|
|
|
|
/// Allow automatic conversion to the machine instruction we are working on.
|
|
///
|
|
operator MachineInstr*() const { return MI; }
|
|
operator MachineBasicBlock::iterator() const { return MI; }
|
|
|
|
/// addReg - Add a new virtual register operand...
|
|
///
|
|
const
|
|
MachineInstrBuilder &addReg(unsigned RegNo, bool isDef = false,
|
|
bool isImp = false, bool isKill = false,
|
|
bool isDead = false, unsigned SubReg = 0,
|
|
bool isEarlyClobber = false) const {
|
|
MI->addOperand(MachineOperand::CreateReg(RegNo, isDef, isImp, isKill,
|
|
isDead, SubReg, isEarlyClobber));
|
|
return *this;
|
|
}
|
|
|
|
/// addImm - Add a new immediate operand.
|
|
///
|
|
const MachineInstrBuilder &addImm(int64_t Val) const {
|
|
MI->addOperand(MachineOperand::CreateImm(Val));
|
|
return *this;
|
|
}
|
|
|
|
const MachineInstrBuilder &addFPImm(const ConstantFP *Val) const {
|
|
MI->addOperand(MachineOperand::CreateFPImm(Val));
|
|
return *this;
|
|
}
|
|
|
|
const MachineInstrBuilder &addMBB(MachineBasicBlock *MBB) const {
|
|
MI->addOperand(MachineOperand::CreateMBB(MBB));
|
|
return *this;
|
|
}
|
|
|
|
const MachineInstrBuilder &addFrameIndex(unsigned Idx) const {
|
|
MI->addOperand(MachineOperand::CreateFI(Idx));
|
|
return *this;
|
|
}
|
|
|
|
const MachineInstrBuilder &addConstantPoolIndex(unsigned Idx,
|
|
int Offset = 0) const {
|
|
MI->addOperand(MachineOperand::CreateCPI(Idx, Offset));
|
|
return *this;
|
|
}
|
|
|
|
const MachineInstrBuilder &addJumpTableIndex(unsigned Idx) const {
|
|
MI->addOperand(MachineOperand::CreateJTI(Idx));
|
|
return *this;
|
|
}
|
|
|
|
const MachineInstrBuilder &addGlobalAddress(GlobalValue *GV,
|
|
int64_t Offset = 0) const {
|
|
MI->addOperand(MachineOperand::CreateGA(GV, Offset));
|
|
return *this;
|
|
}
|
|
|
|
const MachineInstrBuilder &addExternalSymbol(const char *FnName,
|
|
int64_t Offset = 0) const {
|
|
MI->addOperand(MachineOperand::CreateES(FnName, Offset));
|
|
return *this;
|
|
}
|
|
|
|
const MachineInstrBuilder &addMemOperand(const MachineMemOperand &MMO) const {
|
|
MI->addMemOperand(*MI->getParent()->getParent(), MMO);
|
|
return *this;
|
|
}
|
|
|
|
const MachineInstrBuilder &addOperand(const MachineOperand &MO) const {
|
|
if (MO.isReg())
|
|
return addReg(MO.getReg(), MO.isDef(), MO.isImplicit(),
|
|
MO.isKill(), MO.isDead(), MO.getSubReg(),
|
|
MO.isEarlyClobber());
|
|
if (MO.isImm())
|
|
return addImm(MO.getImm());
|
|
if (MO.isFI())
|
|
return addFrameIndex(MO.getIndex());
|
|
if (MO.isGlobal())
|
|
return addGlobalAddress(MO.getGlobal(), MO.getOffset());
|
|
if (MO.isCPI())
|
|
return addConstantPoolIndex(MO.getIndex(), MO.getOffset());
|
|
if (MO.isSymbol())
|
|
return addExternalSymbol(MO.getSymbolName());
|
|
if (MO.isJTI())
|
|
return addJumpTableIndex(MO.getIndex());
|
|
|
|
assert(0 && "Unknown operand for MachineInstrBuilder::AddOperand!");
|
|
return *this;
|
|
}
|
|
};
|
|
|
|
/// BuildMI - Builder interface. Specify how to create the initial instruction
|
|
/// itself.
|
|
///
|
|
inline MachineInstrBuilder BuildMI(MachineFunction &MF,
|
|
DebugLoc DL,
|
|
const TargetInstrDesc &TID) {
|
|
return MachineInstrBuilder(MF.CreateMachineInstr(TID, DL));
|
|
}
|
|
|
|
/// BuildMI - This version of the builder sets up the first operand as a
|
|
/// destination virtual register.
|
|
///
|
|
inline MachineInstrBuilder BuildMI(MachineFunction &MF,
|
|
DebugLoc DL,
|
|
const TargetInstrDesc &TID,
|
|
unsigned DestReg) {
|
|
return MachineInstrBuilder(MF.CreateMachineInstr(TID, DL))
|
|
.addReg(DestReg, true);
|
|
}
|
|
|
|
/// BuildMI - This version of the builder inserts the newly-built
|
|
/// instruction before the given position in the given MachineBasicBlock, and
|
|
/// sets up the first operand as a destination virtual register.
|
|
///
|
|
inline MachineInstrBuilder BuildMI(MachineBasicBlock &BB,
|
|
MachineBasicBlock::iterator I,
|
|
DebugLoc DL,
|
|
const TargetInstrDesc &TID,
|
|
unsigned DestReg) {
|
|
MachineInstr *MI = BB.getParent()->CreateMachineInstr(TID, DL);
|
|
BB.insert(I, MI);
|
|
return MachineInstrBuilder(MI).addReg(DestReg, true);
|
|
}
|
|
|
|
/// BuildMI - This version of the builder inserts the newly-built
|
|
/// instruction before the given position in the given MachineBasicBlock, and
|
|
/// does NOT take a destination register.
|
|
///
|
|
inline MachineInstrBuilder BuildMI(MachineBasicBlock &BB,
|
|
MachineBasicBlock::iterator I,
|
|
DebugLoc DL,
|
|
const TargetInstrDesc &TID) {
|
|
MachineInstr *MI = BB.getParent()->CreateMachineInstr(TID, DL);
|
|
BB.insert(I, MI);
|
|
return MachineInstrBuilder(MI);
|
|
}
|
|
|
|
/// BuildMI - This version of the builder inserts the newly-built
|
|
/// instruction at the end of the given MachineBasicBlock, and does NOT take a
|
|
/// destination register.
|
|
///
|
|
inline MachineInstrBuilder BuildMI(MachineBasicBlock *BB,
|
|
DebugLoc DL,
|
|
const TargetInstrDesc &TID) {
|
|
return BuildMI(*BB, BB->end(), DL, TID);
|
|
}
|
|
|
|
/// BuildMI - This version of the builder inserts the newly-built
|
|
/// instruction at the end of the given MachineBasicBlock, and sets up the first
|
|
/// operand as a destination virtual register.
|
|
///
|
|
inline MachineInstrBuilder BuildMI(MachineBasicBlock *BB,
|
|
DebugLoc DL,
|
|
const TargetInstrDesc &TID,
|
|
unsigned DestReg) {
|
|
return BuildMI(*BB, BB->end(), DL, TID, DestReg);
|
|
}
|
|
|
|
} // End llvm namespace
|
|
|
|
#endif
|