| //===-- 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) const { |
| MI->addOperand(MachineOperand::CreateReg(RegNo, isDef, isImp, isKill, |
| isDead, SubReg)); |
| 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; |
| } |
| }; |
| |
| /// BuildMI - Builder interface. Specify how to create the initial instruction |
| /// itself. |
| /// |
| inline MachineInstrBuilder BuildMI(MachineFunction &MF, |
| const TargetInstrDesc &TID) { |
| return MachineInstrBuilder(MF.CreateMachineInstr(TID, |
| DebugLoc::getUnknownLoc())); |
| } |
| 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, |
| const TargetInstrDesc &TID, |
| unsigned DestReg) { |
| return MachineInstrBuilder(MF.CreateMachineInstr(TID, |
| DebugLoc::getUnknownLoc())) |
| .addReg(DestReg, true); |
| } |
| 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, |
| const TargetInstrDesc &TID, |
| unsigned DestReg) { |
| MachineInstr *MI = |
| BB.getParent()->CreateMachineInstr(TID, DebugLoc::getUnknownLoc()); |
| BB.insert(I, MI); |
| return MachineInstrBuilder(MI).addReg(DestReg, true); |
| } |
| 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, |
| const TargetInstrDesc &TID) { |
| MachineInstr *MI = |
| BB.getParent()->CreateMachineInstr(TID, DebugLoc::getUnknownLoc()); |
| BB.insert(I, MI); |
| return MachineInstrBuilder(MI); |
| } |
| 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, |
| const TargetInstrDesc &TID) { |
| return BuildMI(*BB, BB->end(), TID); |
| } |
| 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, |
| const TargetInstrDesc &TID, |
| unsigned DestReg) { |
| return BuildMI(*BB, BB->end(), TID, DestReg); |
| } |
| inline MachineInstrBuilder BuildMI(MachineBasicBlock *BB, |
| DebugLoc DL, |
| const TargetInstrDesc &TID, |
| unsigned DestReg) { |
| return BuildMI(*BB, BB->end(), DL, TID, DestReg); |
| } |
| |
| } // End llvm namespace |
| |
| #endif |