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initializer problem, a minor tweak to the way the DAGISelEmitter finds load/store nodes, and a renaming of the new PseudoSourceValue objects. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46827 91177308-0d34-0410-b5e6-96231b3b80d8
156 lines
5.3 KiB
C++
156 lines
5.3 KiB
C++
//===-- CodeGen/MachineInstBuilder.h - Simplify creation of MIs -*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file exposes a function named BuildMI, which is useful for dramatically
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// simplifying how MachineInstr's are created. It allows use of code like this:
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//
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// M = BuildMI(X86::ADDrr8, 2).addReg(argVal1).addReg(argVal2);
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_CODEGEN_MACHINEINSTRBUILDER_H
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#define LLVM_CODEGEN_MACHINEINSTRBUILDER_H
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#include "llvm/CodeGen/MachineBasicBlock.h"
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#include "llvm/CodeGen/MachineFunction.h"
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namespace llvm {
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class TargetInstrDesc;
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class MachineInstrBuilder {
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MachineInstr *MI;
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public:
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explicit MachineInstrBuilder(MachineInstr *mi) : MI(mi) {}
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/// Allow automatic conversion to the machine instruction we are working on.
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///
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operator MachineInstr*() const { return MI; }
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operator MachineBasicBlock::iterator() const { return MI; }
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/// addReg - Add a new virtual register operand...
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///
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const
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MachineInstrBuilder &addReg(unsigned RegNo, bool isDef = false,
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bool isImp = false, bool isKill = false,
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bool isDead = false, unsigned SubReg = 0) const {
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MI->addOperand(MachineOperand::CreateReg(RegNo, isDef, isImp, isKill,
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isDead, SubReg));
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return *this;
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}
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/// addImm - Add a new immediate operand.
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///
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const MachineInstrBuilder &addImm(int64_t Val) const {
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MI->addOperand(MachineOperand::CreateImm(Val));
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return *this;
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}
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const MachineInstrBuilder &addMBB(MachineBasicBlock *MBB) const {
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MI->addOperand(MachineOperand::CreateMBB(MBB));
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return *this;
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}
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const MachineInstrBuilder &addFrameIndex(unsigned Idx) const {
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MI->addOperand(MachineOperand::CreateFI(Idx));
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return *this;
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}
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const MachineInstrBuilder &addConstantPoolIndex(unsigned Idx,
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int Offset = 0) const {
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MI->addOperand(MachineOperand::CreateCPI(Idx, Offset));
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return *this;
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}
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const MachineInstrBuilder &addJumpTableIndex(unsigned Idx) const {
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MI->addOperand(MachineOperand::CreateJTI(Idx));
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return *this;
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}
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const MachineInstrBuilder &addGlobalAddress(GlobalValue *GV,
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int Offset = 0) const {
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MI->addOperand(MachineOperand::CreateGA(GV, Offset));
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return *this;
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}
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const MachineInstrBuilder &addExternalSymbol(const char *FnName) const{
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MI->addOperand(MachineOperand::CreateES(FnName, 0));
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return *this;
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}
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/// addMemOperand - Add a memory operand to the machine instruction.
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const MachineInstrBuilder &addMemOperand(const MemOperand &MO) const {
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MI->addMemOperand(MO);
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return *this;
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}
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};
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/// BuildMI - Builder interface. Specify how to create the initial instruction
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/// itself.
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///
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inline MachineInstrBuilder BuildMI(const TargetInstrDesc &TID) {
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return MachineInstrBuilder(new MachineInstr(TID));
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}
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/// BuildMI - This version of the builder sets up the first operand as a
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/// destination virtual register.
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///
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inline MachineInstrBuilder BuildMI(const TargetInstrDesc &TID,
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unsigned DestReg) {
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return MachineInstrBuilder(new MachineInstr(TID)).addReg(DestReg, true);
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}
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/// BuildMI - This version of the builder inserts the newly-built
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/// instruction before the given position in the given MachineBasicBlock, and
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/// sets up the first operand as a destination virtual register.
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///
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inline MachineInstrBuilder BuildMI(MachineBasicBlock &BB,
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MachineBasicBlock::iterator I,
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const TargetInstrDesc &TID,
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unsigned DestReg) {
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MachineInstr *MI = new MachineInstr(TID);
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BB.insert(I, MI);
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return MachineInstrBuilder(MI).addReg(DestReg, true);
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}
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/// BuildMI - This version of the builder inserts the newly-built
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/// instruction before the given position in the given MachineBasicBlock, and
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/// does NOT take a destination register.
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///
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inline MachineInstrBuilder BuildMI(MachineBasicBlock &BB,
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MachineBasicBlock::iterator I,
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const TargetInstrDesc &TID) {
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MachineInstr *MI = new MachineInstr(TID);
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BB.insert(I, MI);
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return MachineInstrBuilder(MI);
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}
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/// BuildMI - This version of the builder inserts the newly-built
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/// instruction at the end of the given MachineBasicBlock, and does NOT take a
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/// destination register.
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///
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inline MachineInstrBuilder BuildMI(MachineBasicBlock *BB,
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const TargetInstrDesc &TID) {
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return BuildMI(*BB, BB->end(), TID);
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}
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/// BuildMI - This version of the builder inserts the newly-built
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/// instruction at the end of the given MachineBasicBlock, and sets up the first
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/// operand as a destination virtual register.
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///
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inline MachineInstrBuilder BuildMI(MachineBasicBlock *BB,
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const TargetInstrDesc &TID,
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unsigned DestReg) {
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return BuildMI(*BB, BB->end(), TID, DestReg);
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}
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} // End llvm namespace
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#endif
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