MachineInstr.cpp revision 749c6f6b5ed301c84aac562e414486549d7b98eb
1e138b3dd1ff02d826233482831318708a166ed93Chris Lattner//===-- lib/CodeGen/MachineInstr.cpp --------------------------------------===// 2edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman// 3b576c94c15af9a440f69d9d03c2afead7971118cJohn Criswell// The LLVM Compiler Infrastructure 4b576c94c15af9a440f69d9d03c2afead7971118cJohn Criswell// 54ee451de366474b9c228b4e5fa573795a715216dChris Lattner// This file is distributed under the University of Illinois Open Source 64ee451de366474b9c228b4e5fa573795a715216dChris Lattner// License. See LICENSE.TXT for details. 7edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman// 8b576c94c15af9a440f69d9d03c2afead7971118cJohn Criswell//===----------------------------------------------------------------------===// 921326fc2ad47ee7e73a8c0b03a4a0cc0b0a0c4e8Brian Gaeke// 1021326fc2ad47ee7e73a8c0b03a4a0cc0b0a0c4e8Brian Gaeke// Methods common to all machine instructions. 1121326fc2ad47ee7e73a8c0b03a4a0cc0b0a0c4e8Brian Gaeke// 12035dfbe7f2d109008d2d62d9f2a67efb477a7ab6Chris Lattner//===----------------------------------------------------------------------===// 1370bc4b5d1a3795a8f41be96723cfcbccac8e1671Vikram S. Adve 14822b4fb896846b87dd11a330ae13f2239329aeefChris Lattner#include "llvm/CodeGen/MachineInstr.h" 1584bc5427d6883f73cfeae3da640acd011d35c006Chris Lattner#include "llvm/Value.h" 168517e1f0beea9b5e47974f083396d53294c390adChris Lattner#include "llvm/CodeGen/MachineFunction.h" 1762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner#include "llvm/CodeGen/MachineRegisterInfo.h" 181049164aa6b06d91d9b3b557a9a213eaf3f6319aChris Lattner#include "llvm/Target/TargetMachine.h" 193501feab811c86c9659248a4875fc31a3165f84dChris Lattner#include "llvm/Target/TargetInstrInfo.h" 202a79a0927c479b69316aa275c1f79c74d20e8040Chris Lattner#include "llvm/Target/MRegisterInfo.h" 21551ccae044b0ff658fe629dd67edd5ffe75d10e8Reid Spencer#include "llvm/Support/LeakDetector.h" 22a09362eb975730ac624c0bd210a95655ee105296Bill Wendling#include "llvm/Support/Streams.h" 23c21c5eeb4f56f160e79522df2d3aab5cfe73c05dJeff Cohen#include <ostream> 240742b59913a7760eb26f08121cd244a37e83e3b3Chris Lattnerusing namespace llvm; 25d0fde30ce850b78371fd1386338350591f9ff494Brian Gaeke 26f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner//===----------------------------------------------------------------------===// 27f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner// MachineOperand Implementation 28f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner//===----------------------------------------------------------------------===// 29f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner 3062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// AddRegOperandToRegInfo - Add this register operand to the specified 3162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// MachineRegisterInfo. If it is null, then the next/prev fields should be 3262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// explicitly nulled out. 3362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattnervoid MachineOperand::AddRegOperandToRegInfo(MachineRegisterInfo *RegInfo) { 3462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner assert(isReg() && "Can only add reg operand to use lists"); 3562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 3662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // If the reginfo pointer is null, just explicitly null out or next/prev 3762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // pointers, to ensure they are not garbage. 3862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (RegInfo == 0) { 3962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Contents.Reg.Prev = 0; 4062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Contents.Reg.Next = 0; 4162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner return; 4262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 4362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 4462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Otherwise, add this operand to the head of the registers use/def list. 4580fe5311b5e9e5c4642ff46ba2377173c17797f6Chris Lattner MachineOperand **Head = &RegInfo->getRegUseDefListHead(getReg()); 4662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 4780fe5311b5e9e5c4642ff46ba2377173c17797f6Chris Lattner // For SSA values, we prefer to keep the definition at the start of the list. 4880fe5311b5e9e5c4642ff46ba2377173c17797f6Chris Lattner // we do this by skipping over the definition if it is at the head of the 4980fe5311b5e9e5c4642ff46ba2377173c17797f6Chris Lattner // list. 5080fe5311b5e9e5c4642ff46ba2377173c17797f6Chris Lattner if (*Head && (*Head)->isDef()) 5180fe5311b5e9e5c4642ff46ba2377173c17797f6Chris Lattner Head = &(*Head)->Contents.Reg.Next; 5280fe5311b5e9e5c4642ff46ba2377173c17797f6Chris Lattner 5380fe5311b5e9e5c4642ff46ba2377173c17797f6Chris Lattner Contents.Reg.Next = *Head; 5462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (Contents.Reg.Next) { 5562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner assert(getReg() == Contents.Reg.Next->getReg() && 5662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner "Different regs on the same list!"); 5762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Contents.Reg.Next->Contents.Reg.Prev = &Contents.Reg.Next; 5862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 5962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 6080fe5311b5e9e5c4642ff46ba2377173c17797f6Chris Lattner Contents.Reg.Prev = Head; 6180fe5311b5e9e5c4642ff46ba2377173c17797f6Chris Lattner *Head = this; 6262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner} 6362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 6462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattnervoid MachineOperand::setReg(unsigned Reg) { 6562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (getReg() == Reg) return; // No change. 6662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 6762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Otherwise, we have to change the register. If this operand is embedded 6862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // into a machine function, we need to update the old and new register's 6962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // use/def lists. 7062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (MachineInstr *MI = getParent()) 7162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (MachineBasicBlock *MBB = MI->getParent()) 7262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (MachineFunction *MF = MBB->getParent()) { 7362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner RemoveRegOperandFromRegInfo(); 7462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Contents.Reg.RegNo = Reg; 7562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner AddRegOperandToRegInfo(&MF->getRegInfo()); 7662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner return; 7762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 7862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 7962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Otherwise, just change the register, no problem. :) 8062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Contents.Reg.RegNo = Reg; 8162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner} 8262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 8362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// ChangeToImmediate - Replace this operand with a new immediate operand of 8462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// the specified value. If an operand is known to be an immediate already, 8562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// the setImm method should be used. 8662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattnervoid MachineOperand::ChangeToImmediate(int64_t ImmVal) { 8762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // If this operand is currently a register operand, and if this is in a 8862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // function, deregister the operand from the register's use/def list. 8962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (isReg() && getParent() && getParent()->getParent() && 9062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner getParent()->getParent()->getParent()) 9162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner RemoveRegOperandFromRegInfo(); 9262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 9362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner OpKind = MO_Immediate; 9462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Contents.ImmVal = ImmVal; 9562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner} 9662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 9762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// ChangeToRegister - Replace this operand with a new register operand of 9862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// the specified value. If an operand is known to be an register already, 9962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// the setReg method should be used. 10062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattnervoid MachineOperand::ChangeToRegister(unsigned Reg, bool isDef, bool isImp, 10162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner bool isKill, bool isDead) { 10262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // If this operand is already a register operand, use setReg to update the 10362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // register's use/def lists. 10462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (isReg()) { 10562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner setReg(Reg); 10662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } else { 10762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Otherwise, change this to a register and set the reg#. 10862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner OpKind = MO_Register; 10962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Contents.Reg.RegNo = Reg; 11062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 11162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // If this operand is embedded in a function, add the operand to the 11262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // register's use/def list. 11362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (MachineInstr *MI = getParent()) 11462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (MachineBasicBlock *MBB = MI->getParent()) 11562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (MachineFunction *MF = MBB->getParent()) 11662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner AddRegOperandToRegInfo(&MF->getRegInfo()); 11762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 11862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 11962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner IsDef = isDef; 12062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner IsImp = isImp; 12162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner IsKill = isKill; 12262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner IsDead = isDead; 12362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner SubReg = 0; 12462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner} 12562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 126f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner/// isIdenticalTo - Return true if this operand is identical to the specified 127f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner/// operand. 128f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattnerbool MachineOperand::isIdenticalTo(const MachineOperand &Other) const { 129f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner if (getType() != Other.getType()) return false; 130f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner 131f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner switch (getType()) { 132f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner default: assert(0 && "Unrecognized operand type"); 133f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_Register: 134f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner return getReg() == Other.getReg() && isDef() == Other.isDef() && 135f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner getSubReg() == Other.getSubReg(); 136f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_Immediate: 137f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner return getImm() == Other.getImm(); 138f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_MachineBasicBlock: 139f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner return getMBB() == Other.getMBB(); 140f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_FrameIndex: 1418aa797aa51cd4ea1ec6f46f4891a6897944b75b2Chris Lattner return getIndex() == Other.getIndex(); 142f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_ConstantPoolIndex: 1438aa797aa51cd4ea1ec6f46f4891a6897944b75b2Chris Lattner return getIndex() == Other.getIndex() && getOffset() == Other.getOffset(); 144f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_JumpTableIndex: 1458aa797aa51cd4ea1ec6f46f4891a6897944b75b2Chris Lattner return getIndex() == Other.getIndex(); 146f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_GlobalAddress: 147f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner return getGlobal() == Other.getGlobal() && getOffset() == Other.getOffset(); 148f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_ExternalSymbol: 149f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner return !strcmp(getSymbolName(), Other.getSymbolName()) && 150f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner getOffset() == Other.getOffset(); 151f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner } 152f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner} 153f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner 154f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner/// print - Print the specified machine operand. 155f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner/// 156f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattnervoid MachineOperand::print(std::ostream &OS, const TargetMachine *TM) const { 157f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner switch (getType()) { 158f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_Register: 159f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner if (getReg() == 0 || MRegisterInfo::isVirtualRegister(getReg())) { 160f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner OS << "%reg" << getReg(); 161f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner } else { 162f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner // If the instruction is embedded into a basic block, we can find the 16362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // target info for the instruction. 164f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner if (TM == 0) 165f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner if (const MachineInstr *MI = getParent()) 166f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner if (const MachineBasicBlock *MBB = MI->getParent()) 167f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner if (const MachineFunction *MF = MBB->getParent()) 168f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner TM = &MF->getTarget(); 169f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner 170f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner if (TM) 171f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner OS << "%" << TM->getRegisterInfo()->get(getReg()).Name; 172f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner else 173f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner OS << "%mreg" << getReg(); 174f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner } 175f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner 176f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner if (isDef() || isKill() || isDead() || isImplicit()) { 177f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner OS << "<"; 178f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner bool NeedComma = false; 179f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner if (isImplicit()) { 180f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner OS << (isDef() ? "imp-def" : "imp-use"); 181f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner NeedComma = true; 182f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner } else if (isDef()) { 183f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner OS << "def"; 184f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner NeedComma = true; 185f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner } 186f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner if (isKill() || isDead()) { 187f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner if (NeedComma) OS << ","; 188f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner if (isKill()) OS << "kill"; 189f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner if (isDead()) OS << "dead"; 190f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner } 191f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner OS << ">"; 192f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner } 193f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner break; 194f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_Immediate: 195f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner OS << getImm(); 196f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner break; 197f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_MachineBasicBlock: 198f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner OS << "mbb<" 1998aa797aa51cd4ea1ec6f46f4891a6897944b75b2Chris Lattner << ((Value*)getMBB()->getBasicBlock())->getName() 2008aa797aa51cd4ea1ec6f46f4891a6897944b75b2Chris Lattner << "," << (void*)getMBB() << ">"; 201f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner break; 202f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_FrameIndex: 2038aa797aa51cd4ea1ec6f46f4891a6897944b75b2Chris Lattner OS << "<fi#" << getIndex() << ">"; 204f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner break; 205f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_ConstantPoolIndex: 2068aa797aa51cd4ea1ec6f46f4891a6897944b75b2Chris Lattner OS << "<cp#" << getIndex(); 207f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner if (getOffset()) OS << "+" << getOffset(); 208f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner OS << ">"; 209f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner break; 210f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_JumpTableIndex: 2118aa797aa51cd4ea1ec6f46f4891a6897944b75b2Chris Lattner OS << "<jt#" << getIndex() << ">"; 212f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner break; 213f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_GlobalAddress: 214f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner OS << "<ga:" << ((Value*)getGlobal())->getName(); 215f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner if (getOffset()) OS << "+" << getOffset(); 216f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner OS << ">"; 217f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner break; 218f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_ExternalSymbol: 219f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner OS << "<es:" << getSymbolName(); 220f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner if (getOffset()) OS << "+" << getOffset(); 221f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner OS << ">"; 222f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner break; 223f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner default: 224f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner assert(0 && "Unrecognized operand type"); 225f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner } 226f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner} 227f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner 228f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner//===----------------------------------------------------------------------===// 229f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner// MachineInstr Implementation 230f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner//===----------------------------------------------------------------------===// 231f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner 232c0f64ffab93d11fb27a3b8a0707b77400918a20eEvan Cheng/// MachineInstr ctor - This constructor creates a dummy MachineInstr with 23367f660cb080965ea93ed6d7265a67100f2fe38e4Evan Cheng/// TID NULL and no operands. 234c0f64ffab93d11fb27a3b8a0707b77400918a20eEvan ChengMachineInstr::MachineInstr() 235f20c1a497fe3922ac718429d65a5fe396890575eChris Lattner : TID(0), NumImplicitOps(0), Parent(0) { 236aad5c0505183a5b7913f1a443a1f0650122551ccAlkis Evlogimenos // Make sure that we get added to a machine basicblock 237aad5c0505183a5b7913f1a443a1f0650122551ccAlkis Evlogimenos LeakDetector::addGarbageObject(this); 2387279122e668816bed0d4f38d3392bbab0140fad0Chris Lattner} 2397279122e668816bed0d4f38d3392bbab0140fad0Chris Lattner 24067f660cb080965ea93ed6d7265a67100f2fe38e4Evan Chengvoid MachineInstr::addImplicitDefUseOperands() { 24167f660cb080965ea93ed6d7265a67100f2fe38e4Evan Cheng if (TID->ImplicitDefs) 242a4161ee99478e7f8f9e33481e1c0dc79f0b4bd7dChris Lattner for (const unsigned *ImpDefs = TID->ImplicitDefs; *ImpDefs; ++ImpDefs) 2438019f41c0b7fda031d494e3900eada7d4e494772Chris Lattner addOperand(MachineOperand::CreateReg(*ImpDefs, true, true)); 24467f660cb080965ea93ed6d7265a67100f2fe38e4Evan Cheng if (TID->ImplicitUses) 245a4161ee99478e7f8f9e33481e1c0dc79f0b4bd7dChris Lattner for (const unsigned *ImpUses = TID->ImplicitUses; *ImpUses; ++ImpUses) 2468019f41c0b7fda031d494e3900eada7d4e494772Chris Lattner addOperand(MachineOperand::CreateReg(*ImpUses, false, true)); 247d7de496b23fca8145f777a56281457bf64e8bbadEvan Cheng} 248d7de496b23fca8145f777a56281457bf64e8bbadEvan Cheng 249d7de496b23fca8145f777a56281457bf64e8bbadEvan Cheng/// MachineInstr ctor - This constructor create a MachineInstr and add the 250c0f64ffab93d11fb27a3b8a0707b77400918a20eEvan Cheng/// implicit operands. It reserves space for number of operands specified by 251749c6f6b5ed301c84aac562e414486549d7b98ebChris Lattner/// TargetInstrDesc or the numOperands if it is not zero. (for 252c0f64ffab93d11fb27a3b8a0707b77400918a20eEvan Cheng/// instructions with variable number of operands). 253749c6f6b5ed301c84aac562e414486549d7b98ebChris LattnerMachineInstr::MachineInstr(const TargetInstrDesc &tid, bool NoImp) 254f20c1a497fe3922ac718429d65a5fe396890575eChris Lattner : TID(&tid), NumImplicitOps(0), Parent(0) { 255349c4952009525b27383e2120a6b3c998f39bd09Chris Lattner if (!NoImp && TID->getImplicitDefs()) 256349c4952009525b27383e2120a6b3c998f39bd09Chris Lattner for (const unsigned *ImpDefs = TID->getImplicitDefs(); *ImpDefs; ++ImpDefs) 257d7de496b23fca8145f777a56281457bf64e8bbadEvan Cheng NumImplicitOps++; 258349c4952009525b27383e2120a6b3c998f39bd09Chris Lattner if (!NoImp && TID->getImplicitUses()) 259349c4952009525b27383e2120a6b3c998f39bd09Chris Lattner for (const unsigned *ImpUses = TID->getImplicitUses(); *ImpUses; ++ImpUses) 260d7de496b23fca8145f777a56281457bf64e8bbadEvan Cheng NumImplicitOps++; 261349c4952009525b27383e2120a6b3c998f39bd09Chris Lattner Operands.reserve(NumImplicitOps + TID->getNumOperands()); 262fa9457276a2174aaf302240dd32d89900ad021aeEvan Cheng if (!NoImp) 263fa9457276a2174aaf302240dd32d89900ad021aeEvan Cheng addImplicitDefUseOperands(); 264d7de496b23fca8145f777a56281457bf64e8bbadEvan Cheng // Make sure that we get added to a machine basicblock 265d7de496b23fca8145f777a56281457bf64e8bbadEvan Cheng LeakDetector::addGarbageObject(this); 266d7de496b23fca8145f777a56281457bf64e8bbadEvan Cheng} 267d7de496b23fca8145f777a56281457bf64e8bbadEvan Cheng 268ddd7fcb887be752ec8167276a697994ad9cb9c4eChris Lattner/// MachineInstr ctor - Work exactly the same as the ctor above, except that the 269ddd7fcb887be752ec8167276a697994ad9cb9c4eChris Lattner/// MachineInstr is created and added to the end of the specified basic block. 270ddd7fcb887be752ec8167276a697994ad9cb9c4eChris Lattner/// 271c0f64ffab93d11fb27a3b8a0707b77400918a20eEvan ChengMachineInstr::MachineInstr(MachineBasicBlock *MBB, 272749c6f6b5ed301c84aac562e414486549d7b98ebChris Lattner const TargetInstrDesc &tid) 273f20c1a497fe3922ac718429d65a5fe396890575eChris Lattner : TID(&tid), NumImplicitOps(0), Parent(0) { 274ddd7fcb887be752ec8167276a697994ad9cb9c4eChris Lattner assert(MBB && "Cannot use inserting ctor with null basic block!"); 27567f660cb080965ea93ed6d7265a67100f2fe38e4Evan Cheng if (TID->ImplicitDefs) 276349c4952009525b27383e2120a6b3c998f39bd09Chris Lattner for (const unsigned *ImpDefs = TID->getImplicitDefs(); *ImpDefs; ++ImpDefs) 277d7de496b23fca8145f777a56281457bf64e8bbadEvan Cheng NumImplicitOps++; 27867f660cb080965ea93ed6d7265a67100f2fe38e4Evan Cheng if (TID->ImplicitUses) 279349c4952009525b27383e2120a6b3c998f39bd09Chris Lattner for (const unsigned *ImpUses = TID->getImplicitUses(); *ImpUses; ++ImpUses) 280d7de496b23fca8145f777a56281457bf64e8bbadEvan Cheng NumImplicitOps++; 281349c4952009525b27383e2120a6b3c998f39bd09Chris Lattner Operands.reserve(NumImplicitOps + TID->getNumOperands()); 28267f660cb080965ea93ed6d7265a67100f2fe38e4Evan Cheng addImplicitDefUseOperands(); 283aad5c0505183a5b7913f1a443a1f0650122551ccAlkis Evlogimenos // Make sure that we get added to a machine basicblock 284aad5c0505183a5b7913f1a443a1f0650122551ccAlkis Evlogimenos LeakDetector::addGarbageObject(this); 285ddd7fcb887be752ec8167276a697994ad9cb9c4eChris Lattner MBB->push_back(this); // Add instruction to end of basic block! 286ddd7fcb887be752ec8167276a697994ad9cb9c4eChris Lattner} 287ddd7fcb887be752ec8167276a697994ad9cb9c4eChris Lattner 288ce22e76996d3ff0930716fa60c29df60a7e0481bMisha Brukman/// MachineInstr ctor - Copies MachineInstr arg exactly 289ce22e76996d3ff0930716fa60c29df60a7e0481bMisha Brukman/// 290466b534a570f574ed485d875bbca8454f68dcb52Tanya LattnerMachineInstr::MachineInstr(const MachineInstr &MI) { 291749c6f6b5ed301c84aac562e414486549d7b98ebChris Lattner TID = &MI.getDesc(); 2926b2c05f3d3c7b44183c629485ade10c18b86828dEvan Cheng NumImplicitOps = MI.NumImplicitOps; 293943b5e117fe9a087f9aa529a2632c2d32cc22374Chris Lattner Operands.reserve(MI.getNumOperands()); 294b5159ed0cb7943e5938782f7693beb18342165ceTanya Lattner 295ce22e76996d3ff0930716fa60c29df60a7e0481bMisha Brukman // Add operands 296e12d6abfdfc5141b2001f0c369a0e1525315b9c0Chris Lattner for (unsigned i = 0; i != MI.getNumOperands(); ++i) { 297943b5e117fe9a087f9aa529a2632c2d32cc22374Chris Lattner Operands.push_back(MI.getOperand(i)); 298e12d6abfdfc5141b2001f0c369a0e1525315b9c0Chris Lattner Operands.back().ParentMI = this; 299e12d6abfdfc5141b2001f0c369a0e1525315b9c0Chris Lattner } 3000c63e03e04d3982e1913479bba404c3debc9a27eTanya Lattner 301ce22e76996d3ff0930716fa60c29df60a7e0481bMisha Brukman // Set parent, next, and prev to null 302f20c1a497fe3922ac718429d65a5fe396890575eChris Lattner Parent = 0; 303f20c1a497fe3922ac718429d65a5fe396890575eChris Lattner Prev = 0; 304f20c1a497fe3922ac718429d65a5fe396890575eChris Lattner Next = 0; 305466b534a570f574ed485d875bbca8454f68dcb52Tanya Lattner} 306466b534a570f574ed485d875bbca8454f68dcb52Tanya Lattner 307466b534a570f574ed485d875bbca8454f68dcb52Tanya Lattner 308ce22e76996d3ff0930716fa60c29df60a7e0481bMisha BrukmanMachineInstr::~MachineInstr() { 309aad5c0505183a5b7913f1a443a1f0650122551ccAlkis Evlogimenos LeakDetector::removeGarbageObject(this); 310e12d6abfdfc5141b2001f0c369a0e1525315b9c0Chris Lattner#ifndef NDEBUG 31162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner for (unsigned i = 0, e = Operands.size(); i != e; ++i) { 312e12d6abfdfc5141b2001f0c369a0e1525315b9c0Chris Lattner assert(Operands[i].ParentMI == this && "ParentMI mismatch!"); 31362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner assert((!Operands[i].isReg() || !Operands[i].isOnRegUseList()) && 31462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner "Reg operand def/use list corrupted"); 31562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 316e12d6abfdfc5141b2001f0c369a0e1525315b9c0Chris Lattner#endif 317aad5c0505183a5b7913f1a443a1f0650122551ccAlkis Evlogimenos} 318aad5c0505183a5b7913f1a443a1f0650122551ccAlkis Evlogimenos 31967f660cb080965ea93ed6d7265a67100f2fe38e4Evan Cheng/// getOpcode - Returns the opcode of this MachineInstr. 32067f660cb080965ea93ed6d7265a67100f2fe38e4Evan Cheng/// 321cb648f90a26eb05ae8d508d500ca12881df50824Dan Gohmanint MachineInstr::getOpcode() const { 32267f660cb080965ea93ed6d7265a67100f2fe38e4Evan Cheng return TID->Opcode; 32367f660cb080965ea93ed6d7265a67100f2fe38e4Evan Cheng} 32467f660cb080965ea93ed6d7265a67100f2fe38e4Evan Cheng 32562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// getRegInfo - If this instruction is embedded into a MachineFunction, 32662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// return the MachineRegisterInfo object for the current function, otherwise 32762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// return null. 32862ed6b9ade63bf01717ce5274fa11e93e873d245Chris LattnerMachineRegisterInfo *MachineInstr::getRegInfo() { 32962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (MachineBasicBlock *MBB = getParent()) 33062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (MachineFunction *MF = MBB->getParent()) 33162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner return &MF->getRegInfo(); 33262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner return 0; 33362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner} 33462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 33562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// RemoveRegOperandsFromUseLists - Unlink all of the register operands in 33662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// this instruction from their respective use lists. This requires that the 33762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// operands already be on their use lists. 33862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattnervoid MachineInstr::RemoveRegOperandsFromUseLists() { 33962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner for (unsigned i = 0, e = Operands.size(); i != e; ++i) { 34062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (Operands[i].isReg()) 34162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands[i].RemoveRegOperandFromRegInfo(); 34262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 34362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner} 34462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 34562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// AddRegOperandsToUseLists - Add all of the register operands in 34662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// this instruction from their respective use lists. This requires that the 34762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// operands not be on their use lists yet. 34862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattnervoid MachineInstr::AddRegOperandsToUseLists(MachineRegisterInfo &RegInfo) { 34962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner for (unsigned i = 0, e = Operands.size(); i != e; ++i) { 35062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (Operands[i].isReg()) 35162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands[i].AddRegOperandToRegInfo(&RegInfo); 35262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 35362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner} 35462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 35562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 35662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// addOperand - Add the specified operand to the instruction. If it is an 35762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// implicit operand, it is added to the end of the operand list. If it is 35862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// an explicit operand it is added at the end of the explicit operand list 35962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// (before the first implicit operand). 36062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattnervoid MachineInstr::addOperand(const MachineOperand &Op) { 36162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner bool isImpReg = Op.isReg() && Op.isImplicit(); 36262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner assert((isImpReg || !OperandsComplete()) && 36362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner "Trying to add an operand to a machine instr that is already done!"); 36462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 36562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // If we are adding the operand to the end of the list, our job is simpler. 36662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // This is true most of the time, so this is a reasonable optimization. 36762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (isImpReg || NumImplicitOps == 0) { 36862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // We can only do this optimization if we know that the operand list won't 36962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // reallocate. 37062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (Operands.empty() || Operands.size()+1 <= Operands.capacity()) { 37162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands.push_back(Op); 37262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 37362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Set the parent of the operand. 37462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands.back().ParentMI = this; 37562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 37662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // If the operand is a register, update the operand's use list. 37762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (Op.isReg()) 37862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands.back().AddRegOperandToRegInfo(getRegInfo()); 37962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner return; 38062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 38162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 38262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 38362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Otherwise, we have to insert a real operand before any implicit ones. 38462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner unsigned OpNo = Operands.size()-NumImplicitOps; 38562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 38662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner MachineRegisterInfo *RegInfo = getRegInfo(); 38762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 38862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // If this instruction isn't embedded into a function, then we don't need to 38962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // update any operand lists. 39062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (RegInfo == 0) { 39162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Simple insertion, no reginfo update needed for other register operands. 39262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands.insert(Operands.begin()+OpNo, Op); 39362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands[OpNo].ParentMI = this; 39462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 39562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Do explicitly set the reginfo for this operand though, to ensure the 39662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // next/prev fields are properly nulled out. 39762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (Operands[OpNo].isReg()) 39862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands[OpNo].AddRegOperandToRegInfo(0); 39962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 40062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } else if (Operands.size()+1 <= Operands.capacity()) { 40162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Otherwise, we have to remove register operands from their register use 40262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // list, add the operand, then add the register operands back to their use 40362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // list. This also must handle the case when the operand list reallocates 40462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // to somewhere else. 40562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 40662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // If insertion of this operand won't cause reallocation of the operand 40762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // list, just remove the implicit operands, add the operand, then re-add all 40862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // the rest of the operands. 40962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner for (unsigned i = OpNo, e = Operands.size(); i != e; ++i) { 41062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner assert(Operands[i].isReg() && "Should only be an implicit reg!"); 41162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands[i].RemoveRegOperandFromRegInfo(); 41262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 41362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 41462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Add the operand. If it is a register, add it to the reg list. 41562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands.insert(Operands.begin()+OpNo, Op); 41662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands[OpNo].ParentMI = this; 41762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 41862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (Operands[OpNo].isReg()) 41962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands[OpNo].AddRegOperandToRegInfo(RegInfo); 42062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 42162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Re-add all the implicit ops. 42262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner for (unsigned i = OpNo+1, e = Operands.size(); i != e; ++i) { 42362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner assert(Operands[i].isReg() && "Should only be an implicit reg!"); 42462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands[i].AddRegOperandToRegInfo(RegInfo); 42562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 42662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } else { 42762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Otherwise, we will be reallocating the operand list. Remove all reg 42862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // operands from their list, then readd them after the operand list is 42962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // reallocated. 43062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner RemoveRegOperandsFromUseLists(); 43162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 43262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands.insert(Operands.begin()+OpNo, Op); 43362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands[OpNo].ParentMI = this; 43462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 43562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Re-add all the operands. 43662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner AddRegOperandsToUseLists(*RegInfo); 43762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 43862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner} 43962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 44062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// RemoveOperand - Erase an operand from an instruction, leaving it with one 44162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// fewer operand than it started with. 44262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// 44362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattnervoid MachineInstr::RemoveOperand(unsigned OpNo) { 44462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner assert(OpNo < Operands.size() && "Invalid operand number"); 44562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 44662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Special case removing the last one. 44762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (OpNo == Operands.size()-1) { 44862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // If needed, remove from the reg def/use list. 44962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (Operands.back().isReg() && Operands.back().isOnRegUseList()) 45062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands.back().RemoveRegOperandFromRegInfo(); 45162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 45262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands.pop_back(); 45362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner return; 45462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 45562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 45662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Otherwise, we are removing an interior operand. If we have reginfo to 45762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // update, remove all operands that will be shifted down from their reg lists, 45862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // move everything down, then re-add them. 45962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner MachineRegisterInfo *RegInfo = getRegInfo(); 46062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (RegInfo) { 46162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner for (unsigned i = OpNo, e = Operands.size(); i != e; ++i) { 46262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (Operands[i].isReg()) 46362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands[i].RemoveRegOperandFromRegInfo(); 46462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 46562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 46662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 46762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands.erase(Operands.begin()+OpNo); 46862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 46962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (RegInfo) { 47062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner for (unsigned i = OpNo, e = Operands.size(); i != e; ++i) { 47162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (Operands[i].isReg()) 47262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands[i].AddRegOperandToRegInfo(RegInfo); 47362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 47462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 47562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner} 47662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 47762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 47848d7c069c76882475c23de153bda9483cd3c9bb4Chris Lattner/// removeFromParent - This method unlinks 'this' from the containing basic 47948d7c069c76882475c23de153bda9483cd3c9bb4Chris Lattner/// block, and returns it, but does not delete it. 48048d7c069c76882475c23de153bda9483cd3c9bb4Chris LattnerMachineInstr *MachineInstr::removeFromParent() { 48148d7c069c76882475c23de153bda9483cd3c9bb4Chris Lattner assert(getParent() && "Not embedded in a basic block!"); 48248d7c069c76882475c23de153bda9483cd3c9bb4Chris Lattner getParent()->remove(this); 48348d7c069c76882475c23de153bda9483cd3c9bb4Chris Lattner return this; 48448d7c069c76882475c23de153bda9483cd3c9bb4Chris Lattner} 48548d7c069c76882475c23de153bda9483cd3c9bb4Chris Lattner 48648d7c069c76882475c23de153bda9483cd3c9bb4Chris Lattner 48721326fc2ad47ee7e73a8c0b03a4a0cc0b0a0c4e8Brian Gaeke/// OperandComplete - Return true if it's illegal to add a new operand 48821326fc2ad47ee7e73a8c0b03a4a0cc0b0a0c4e8Brian Gaeke/// 4892a90ba60175f93e7438165d8423100aa573c16c5Chris Lattnerbool MachineInstr::OperandsComplete() const { 490349c4952009525b27383e2120a6b3c998f39bd09Chris Lattner unsigned short NumOperands = TID->getNumOperands(); 4918f707e15fbd09ca948b86419bcb0c92470827ac9Chris Lattner if (!TID->isVariadic() && getNumOperands()-NumImplicitOps >= NumOperands) 4923497782f3843007de3be0c43e3ff206a01e2ccacVikram S. Adve return true; // Broken: we have all the operands of this instruction! 493413746e9833d97a8b463ef6a788aa326cf3829a2Chris Lattner return false; 49470bc4b5d1a3795a8f41be96723cfcbccac8e1671Vikram S. Adve} 49570bc4b5d1a3795a8f41be96723cfcbccac8e1671Vikram S. Adve 49619e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng/// getNumExplicitOperands - Returns the number of non-implicit operands. 49719e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng/// 49819e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Chengunsigned MachineInstr::getNumExplicitOperands() const { 499349c4952009525b27383e2120a6b3c998f39bd09Chris Lattner unsigned NumOperands = TID->getNumOperands(); 5008f707e15fbd09ca948b86419bcb0c92470827ac9Chris Lattner if (!TID->isVariadic()) 50119e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng return NumOperands; 50219e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng 50319e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng for (unsigned e = getNumOperands(); NumOperands != e; ++NumOperands) { 50419e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng const MachineOperand &MO = getOperand(NumOperands); 50519e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng if (!MO.isRegister() || !MO.isImplicit()) 50619e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng NumOperands++; 50719e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng } 50819e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng return NumOperands; 50919e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng} 51019e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng 5118ace2cd034be10c09be51daf08c3dda327f54262Chris Lattner 512faa510726f4b40aa4495e60e4d341c6467e3fb01Evan Cheng/// findRegisterUseOperandIdx() - Returns the MachineOperand that is a use of 51332eb1f1ca4220d2f24916e587ad7e8574d7d82a1Evan Cheng/// the specific register or -1 if it is not found. It further tightening 51476d7e76c15c258ec4a71fd75a2a32bca3a5e5e27Evan Cheng/// the search criteria to a use that kills the register if isKill is true. 515f277ee4be7edabb759a7f78138b693d72d0c263fEvan Chengint MachineInstr::findRegisterUseOperandIdx(unsigned Reg, bool isKill) const { 516576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 517f277ee4be7edabb759a7f78138b693d72d0c263fEvan Cheng const MachineOperand &MO = getOperand(i); 51892dfe2001e96f6e2b6d327e8816f38033f88b295Dan Gohman if (MO.isRegister() && MO.isUse() && MO.getReg() == Reg) 51976d7e76c15c258ec4a71fd75a2a32bca3a5e5e27Evan Cheng if (!isKill || MO.isKill()) 52032eb1f1ca4220d2f24916e587ad7e8574d7d82a1Evan Cheng return i; 521b371f457b0ea4a652a9f526ba4375c80ae542252Evan Cheng } 52232eb1f1ca4220d2f24916e587ad7e8574d7d82a1Evan Cheng return -1; 523b371f457b0ea4a652a9f526ba4375c80ae542252Evan Cheng} 524b371f457b0ea4a652a9f526ba4375c80ae542252Evan Cheng 525b371f457b0ea4a652a9f526ba4375c80ae542252Evan Cheng/// findRegisterDefOperand() - Returns the MachineOperand that is a def of 526b371f457b0ea4a652a9f526ba4375c80ae542252Evan Cheng/// the specific register or NULL if it is not found. 527b371f457b0ea4a652a9f526ba4375c80ae542252Evan ChengMachineOperand *MachineInstr::findRegisterDefOperand(unsigned Reg) { 528b371f457b0ea4a652a9f526ba4375c80ae542252Evan Cheng for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 529b371f457b0ea4a652a9f526ba4375c80ae542252Evan Cheng MachineOperand &MO = getOperand(i); 53092dfe2001e96f6e2b6d327e8816f38033f88b295Dan Gohman if (MO.isRegister() && MO.isDef() && MO.getReg() == Reg) 531576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng return &MO; 532576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng } 533576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng return NULL; 534576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng} 53519e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng 536f277ee4be7edabb759a7f78138b693d72d0c263fEvan Cheng/// findFirstPredOperandIdx() - Find the index of the first operand in the 537f277ee4be7edabb759a7f78138b693d72d0c263fEvan Cheng/// operand list that is used to represent the predicate. It returns -1 if 538f277ee4be7edabb759a7f78138b693d72d0c263fEvan Cheng/// none is found. 539f277ee4be7edabb759a7f78138b693d72d0c263fEvan Chengint MachineInstr::findFirstPredOperandIdx() const { 540749c6f6b5ed301c84aac562e414486549d7b98ebChris Lattner const TargetInstrDesc &TID = getDesc(); 541749c6f6b5ed301c84aac562e414486549d7b98ebChris Lattner if (TID.isPredicable()) { 54219e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng for (unsigned i = 0, e = getNumOperands(); i != e; ++i) 543749c6f6b5ed301c84aac562e414486549d7b98ebChris Lattner if (TID.OpInfo[i].isPredicate()) 544f277ee4be7edabb759a7f78138b693d72d0c263fEvan Cheng return i; 54519e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng } 54619e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng 547f277ee4be7edabb759a7f78138b693d72d0c263fEvan Cheng return -1; 54819e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng} 549576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng 55032dfbeada7292167bb488f36a71a5a6a519ddaffEvan Cheng/// isRegReDefinedByTwoAddr - Returns true if the Reg re-definition is due 55132dfbeada7292167bb488f36a71a5a6a519ddaffEvan Cheng/// to two addr elimination. 55232dfbeada7292167bb488f36a71a5a6a519ddaffEvan Chengbool MachineInstr::isRegReDefinedByTwoAddr(unsigned Reg) const { 553749c6f6b5ed301c84aac562e414486549d7b98ebChris Lattner const TargetInstrDesc &TID = getDesc(); 55432dfbeada7292167bb488f36a71a5a6a519ddaffEvan Cheng for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 55532dfbeada7292167bb488f36a71a5a6a519ddaffEvan Cheng const MachineOperand &MO1 = getOperand(i); 55632dfbeada7292167bb488f36a71a5a6a519ddaffEvan Cheng if (MO1.isRegister() && MO1.isDef() && MO1.getReg() == Reg) { 55732dfbeada7292167bb488f36a71a5a6a519ddaffEvan Cheng for (unsigned j = i+1; j < e; ++j) { 55832dfbeada7292167bb488f36a71a5a6a519ddaffEvan Cheng const MachineOperand &MO2 = getOperand(j); 55932dfbeada7292167bb488f36a71a5a6a519ddaffEvan Cheng if (MO2.isRegister() && MO2.isUse() && MO2.getReg() == Reg && 560749c6f6b5ed301c84aac562e414486549d7b98ebChris Lattner TID.getOperandConstraint(j, TOI::TIED_TO) == (int)i) 56132dfbeada7292167bb488f36a71a5a6a519ddaffEvan Cheng return true; 56232dfbeada7292167bb488f36a71a5a6a519ddaffEvan Cheng } 56332dfbeada7292167bb488f36a71a5a6a519ddaffEvan Cheng } 56432dfbeada7292167bb488f36a71a5a6a519ddaffEvan Cheng } 56532dfbeada7292167bb488f36a71a5a6a519ddaffEvan Cheng return false; 56632dfbeada7292167bb488f36a71a5a6a519ddaffEvan Cheng} 56732dfbeada7292167bb488f36a71a5a6a519ddaffEvan Cheng 568576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng/// copyKillDeadInfo - Copies kill / dead operand properties from MI. 569576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng/// 570576d123e130a8291669dd2384a3735cc4933fd00Evan Chengvoid MachineInstr::copyKillDeadInfo(const MachineInstr *MI) { 571576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng for (unsigned i = 0, e = MI->getNumOperands(); i != e; ++i) { 572576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng const MachineOperand &MO = MI->getOperand(i); 57392dfe2001e96f6e2b6d327e8816f38033f88b295Dan Gohman if (!MO.isRegister() || (!MO.isKill() && !MO.isDead())) 574576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng continue; 575576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng for (unsigned j = 0, ee = getNumOperands(); j != ee; ++j) { 576576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng MachineOperand &MOp = getOperand(j); 577576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng if (!MOp.isIdenticalTo(MO)) 578576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng continue; 579576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng if (MO.isKill()) 580576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng MOp.setIsKill(); 581576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng else 582576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng MOp.setIsDead(); 583576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng break; 584576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng } 585576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng } 586576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng} 587576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng 58819e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng/// copyPredicates - Copies predicate operand(s) from MI. 58919e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Chengvoid MachineInstr::copyPredicates(const MachineInstr *MI) { 590749c6f6b5ed301c84aac562e414486549d7b98ebChris Lattner const TargetInstrDesc &TID = MI->getDesc(); 591749c6f6b5ed301c84aac562e414486549d7b98ebChris Lattner if (TID.isPredicable()) { 59219e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng for (unsigned i = 0, e = MI->getNumOperands(); i != e; ++i) { 593749c6f6b5ed301c84aac562e414486549d7b98ebChris Lattner if (TID.OpInfo[i].isPredicate()) { 59419e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng // Predicated operands must be last operands. 5958019f41c0b7fda031d494e3900eada7d4e494772Chris Lattner addOperand(MI->getOperand(i)); 59619e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng } 59719e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng } 59819e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng } 59919e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng} 60019e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng 60121326fc2ad47ee7e73a8c0b03a4a0cc0b0a0c4e8Brian Gaekevoid MachineInstr::dump() const { 602e81561909d128c6e2d8033cb5465a49b2596b26aBill Wendling cerr << " " << *this; 60370bc4b5d1a3795a8f41be96723cfcbccac8e1671Vikram S. Adve} 60470bc4b5d1a3795a8f41be96723cfcbccac8e1671Vikram S. Adve 605b140762a45d21aaed054f15adaff0fc2274d939dTanya Lattnervoid MachineInstr::print(std::ostream &OS, const TargetMachine *TM) const { 606e3087890ac7f2fcf4697f8e09091e9a384311b9cChris Lattner // Specialize printing if op#0 is definition 6076a592271fb2946a0704b06fd66199987cdd40b3cChris Lattner unsigned StartOp = 0; 60892dfe2001e96f6e2b6d327e8816f38033f88b295Dan Gohman if (getNumOperands() && getOperand(0).isRegister() && getOperand(0).isDef()) { 609f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner getOperand(0).print(OS, TM); 6106a592271fb2946a0704b06fd66199987cdd40b3cChris Lattner OS << " = "; 6116a592271fb2946a0704b06fd66199987cdd40b3cChris Lattner ++StartOp; // Don't print this operand again! 6126a592271fb2946a0704b06fd66199987cdd40b3cChris Lattner } 613b140762a45d21aaed054f15adaff0fc2274d939dTanya Lattner 614749c6f6b5ed301c84aac562e414486549d7b98ebChris Lattner OS << getDesc().getName(); 615edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 6166a592271fb2946a0704b06fd66199987cdd40b3cChris Lattner for (unsigned i = StartOp, e = getNumOperands(); i != e; ++i) { 6176a592271fb2946a0704b06fd66199987cdd40b3cChris Lattner if (i != StartOp) 6186a592271fb2946a0704b06fd66199987cdd40b3cChris Lattner OS << ","; 6196a592271fb2946a0704b06fd66199987cdd40b3cChris Lattner OS << " "; 620f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner getOperand(i).print(OS, TM); 6211049164aa6b06d91d9b3b557a9a213eaf3f6319aChris Lattner } 622edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 6231049164aa6b06d91d9b3b557a9a213eaf3f6319aChris Lattner OS << "\n"; 6241049164aa6b06d91d9b3b557a9a213eaf3f6319aChris Lattner} 6251049164aa6b06d91d9b3b557a9a213eaf3f6319aChris Lattner 626