MachineInstr.cpp revision 69de1932b350d7cdfc0ed1f4198d6f78c7822a02
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" 1869de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman#include "llvm/CodeGen/PseudoSourceValue.h" 1969de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman#include "llvm/CodeGen/SelectionDAGNodes.h" 201049164aa6b06d91d9b3b557a9a213eaf3f6319aChris Lattner#include "llvm/Target/TargetMachine.h" 21bb81d97feb396a8bb21d074db1c57e9f66525f40Evan Cheng#include "llvm/Target/TargetInstrInfo.h" 22f14cf85e334ff03bbdd23e473f14ffa4fb025e94Chris Lattner#include "llvm/Target/TargetInstrDesc.h" 232a79a0927c479b69316aa275c1f79c74d20e8040Chris Lattner#include "llvm/Target/MRegisterInfo.h" 24551ccae044b0ff658fe629dd67edd5ffe75d10e8Reid Spencer#include "llvm/Support/LeakDetector.h" 25a09362eb975730ac624c0bd210a95655ee105296Bill Wendling#include "llvm/Support/Streams.h" 26c21c5eeb4f56f160e79522df2d3aab5cfe73c05dJeff Cohen#include <ostream> 270742b59913a7760eb26f08121cd244a37e83e3b3Chris Lattnerusing namespace llvm; 28d0fde30ce850b78371fd1386338350591f9ff494Brian Gaeke 29f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner//===----------------------------------------------------------------------===// 30f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner// MachineOperand Implementation 31f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner//===----------------------------------------------------------------------===// 32f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner 3362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// AddRegOperandToRegInfo - Add this register operand to the specified 3462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// MachineRegisterInfo. If it is null, then the next/prev fields should be 3562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// explicitly nulled out. 3662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattnervoid MachineOperand::AddRegOperandToRegInfo(MachineRegisterInfo *RegInfo) { 3762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner assert(isReg() && "Can only add reg operand to use lists"); 3862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 3962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // If the reginfo pointer is null, just explicitly null out or next/prev 4062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // pointers, to ensure they are not garbage. 4162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (RegInfo == 0) { 4262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Contents.Reg.Prev = 0; 4362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Contents.Reg.Next = 0; 4462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner return; 4562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 4662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 4762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Otherwise, add this operand to the head of the registers use/def list. 4880fe5311b5e9e5c4642ff46ba2377173c17797f6Chris Lattner MachineOperand **Head = &RegInfo->getRegUseDefListHead(getReg()); 4962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 5080fe5311b5e9e5c4642ff46ba2377173c17797f6Chris Lattner // For SSA values, we prefer to keep the definition at the start of the list. 5180fe5311b5e9e5c4642ff46ba2377173c17797f6Chris Lattner // we do this by skipping over the definition if it is at the head of the 5280fe5311b5e9e5c4642ff46ba2377173c17797f6Chris Lattner // list. 5380fe5311b5e9e5c4642ff46ba2377173c17797f6Chris Lattner if (*Head && (*Head)->isDef()) 5480fe5311b5e9e5c4642ff46ba2377173c17797f6Chris Lattner Head = &(*Head)->Contents.Reg.Next; 5580fe5311b5e9e5c4642ff46ba2377173c17797f6Chris Lattner 5680fe5311b5e9e5c4642ff46ba2377173c17797f6Chris Lattner Contents.Reg.Next = *Head; 5762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (Contents.Reg.Next) { 5862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner assert(getReg() == Contents.Reg.Next->getReg() && 5962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner "Different regs on the same list!"); 6062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Contents.Reg.Next->Contents.Reg.Prev = &Contents.Reg.Next; 6162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 6262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 6380fe5311b5e9e5c4642ff46ba2377173c17797f6Chris Lattner Contents.Reg.Prev = Head; 6480fe5311b5e9e5c4642ff46ba2377173c17797f6Chris Lattner *Head = this; 6562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner} 6662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 6762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattnervoid MachineOperand::setReg(unsigned Reg) { 6862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (getReg() == Reg) return; // No change. 6962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 7062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Otherwise, we have to change the register. If this operand is embedded 7162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // into a machine function, we need to update the old and new register's 7262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // use/def lists. 7362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (MachineInstr *MI = getParent()) 7462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (MachineBasicBlock *MBB = MI->getParent()) 7562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (MachineFunction *MF = MBB->getParent()) { 7662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner RemoveRegOperandFromRegInfo(); 7762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Contents.Reg.RegNo = Reg; 7862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner AddRegOperandToRegInfo(&MF->getRegInfo()); 7962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner return; 8062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 8162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 8262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Otherwise, just change the register, no problem. :) 8362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Contents.Reg.RegNo = Reg; 8462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner} 8562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 8662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// ChangeToImmediate - Replace this operand with a new immediate operand of 8762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// the specified value. If an operand is known to be an immediate already, 8862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// the setImm method should be used. 8962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattnervoid MachineOperand::ChangeToImmediate(int64_t ImmVal) { 9062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // If this operand is currently a register operand, and if this is in a 9162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // function, deregister the operand from the register's use/def list. 9262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (isReg() && getParent() && getParent()->getParent() && 9362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner getParent()->getParent()->getParent()) 9462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner RemoveRegOperandFromRegInfo(); 9562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 9662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner OpKind = MO_Immediate; 9762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Contents.ImmVal = ImmVal; 9862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner} 9962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 10062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// ChangeToRegister - Replace this operand with a new register operand of 10162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// the specified value. If an operand is known to be an register already, 10262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// the setReg method should be used. 10362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattnervoid MachineOperand::ChangeToRegister(unsigned Reg, bool isDef, bool isImp, 10462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner bool isKill, bool isDead) { 10562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // If this operand is already a register operand, use setReg to update the 10662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // register's use/def lists. 10762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (isReg()) { 10862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner setReg(Reg); 10962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } else { 11062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Otherwise, change this to a register and set the reg#. 11162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner OpKind = MO_Register; 11262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Contents.Reg.RegNo = Reg; 11362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 11462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // If this operand is embedded in a function, add the operand to the 11562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // register's use/def list. 11662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (MachineInstr *MI = getParent()) 11762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (MachineBasicBlock *MBB = MI->getParent()) 11862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (MachineFunction *MF = MBB->getParent()) 11962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner AddRegOperandToRegInfo(&MF->getRegInfo()); 12062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 12162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 12262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner IsDef = isDef; 12362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner IsImp = isImp; 12462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner IsKill = isKill; 12562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner IsDead = isDead; 12662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner SubReg = 0; 12762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner} 12862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 129f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner/// isIdenticalTo - Return true if this operand is identical to the specified 130f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner/// operand. 131f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattnerbool MachineOperand::isIdenticalTo(const MachineOperand &Other) const { 132f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner if (getType() != Other.getType()) return false; 133f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner 134f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner switch (getType()) { 135f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner default: assert(0 && "Unrecognized operand type"); 136f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_Register: 137f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner return getReg() == Other.getReg() && isDef() == Other.isDef() && 138f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner getSubReg() == Other.getSubReg(); 139f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_Immediate: 140f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner return getImm() == Other.getImm(); 141f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_MachineBasicBlock: 142f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner return getMBB() == Other.getMBB(); 143f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_FrameIndex: 1448aa797aa51cd4ea1ec6f46f4891a6897944b75b2Chris Lattner return getIndex() == Other.getIndex(); 145f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_ConstantPoolIndex: 1468aa797aa51cd4ea1ec6f46f4891a6897944b75b2Chris Lattner return getIndex() == Other.getIndex() && getOffset() == Other.getOffset(); 147f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_JumpTableIndex: 1488aa797aa51cd4ea1ec6f46f4891a6897944b75b2Chris Lattner return getIndex() == Other.getIndex(); 149f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_GlobalAddress: 150f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner return getGlobal() == Other.getGlobal() && getOffset() == Other.getOffset(); 151f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_ExternalSymbol: 152f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner return !strcmp(getSymbolName(), Other.getSymbolName()) && 153f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner getOffset() == Other.getOffset(); 154f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner } 155f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner} 156f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner 157f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner/// print - Print the specified machine operand. 158f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner/// 159f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattnervoid MachineOperand::print(std::ostream &OS, const TargetMachine *TM) const { 160f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner switch (getType()) { 161f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_Register: 162f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner if (getReg() == 0 || MRegisterInfo::isVirtualRegister(getReg())) { 163f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner OS << "%reg" << getReg(); 164f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner } else { 165f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner // If the instruction is embedded into a basic block, we can find the 16662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // target info for the instruction. 167f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner if (TM == 0) 168f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner if (const MachineInstr *MI = getParent()) 169f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner if (const MachineBasicBlock *MBB = MI->getParent()) 170f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner if (const MachineFunction *MF = MBB->getParent()) 171f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner TM = &MF->getTarget(); 172f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner 173f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner if (TM) 174f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner OS << "%" << TM->getRegisterInfo()->get(getReg()).Name; 175f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner else 176f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner OS << "%mreg" << getReg(); 177f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner } 178f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner 179f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner if (isDef() || isKill() || isDead() || isImplicit()) { 180f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner OS << "<"; 181f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner bool NeedComma = false; 182f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner if (isImplicit()) { 183f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner OS << (isDef() ? "imp-def" : "imp-use"); 184f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner NeedComma = true; 185f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner } else if (isDef()) { 186f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner OS << "def"; 187f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner NeedComma = true; 188f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner } 189f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner if (isKill() || isDead()) { 190f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner if (NeedComma) OS << ","; 191f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner if (isKill()) OS << "kill"; 192f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner if (isDead()) OS << "dead"; 193f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner } 194f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner OS << ">"; 195f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner } 196f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner break; 197f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_Immediate: 198f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner OS << getImm(); 199f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner break; 200f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_MachineBasicBlock: 201f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner OS << "mbb<" 2028aa797aa51cd4ea1ec6f46f4891a6897944b75b2Chris Lattner << ((Value*)getMBB()->getBasicBlock())->getName() 2038aa797aa51cd4ea1ec6f46f4891a6897944b75b2Chris Lattner << "," << (void*)getMBB() << ">"; 204f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner break; 205f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_FrameIndex: 2068aa797aa51cd4ea1ec6f46f4891a6897944b75b2Chris Lattner OS << "<fi#" << getIndex() << ">"; 207f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner break; 208f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_ConstantPoolIndex: 2098aa797aa51cd4ea1ec6f46f4891a6897944b75b2Chris Lattner OS << "<cp#" << getIndex(); 210f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner if (getOffset()) OS << "+" << getOffset(); 211f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner OS << ">"; 212f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner break; 213f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_JumpTableIndex: 2148aa797aa51cd4ea1ec6f46f4891a6897944b75b2Chris Lattner OS << "<jt#" << getIndex() << ">"; 215f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner break; 216f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_GlobalAddress: 217f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner OS << "<ga:" << ((Value*)getGlobal())->getName(); 218f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner if (getOffset()) OS << "+" << getOffset(); 219f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner OS << ">"; 220f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner break; 221f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_ExternalSymbol: 222f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner OS << "<es:" << getSymbolName(); 223f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner if (getOffset()) OS << "+" << getOffset(); 224f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner OS << ">"; 225f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner break; 226f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner default: 227f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner assert(0 && "Unrecognized operand type"); 228f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner } 229f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner} 230f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner 231f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner//===----------------------------------------------------------------------===// 232f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner// MachineInstr Implementation 233f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner//===----------------------------------------------------------------------===// 234f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner 235c0f64ffab93d11fb27a3b8a0707b77400918a20eEvan Cheng/// MachineInstr ctor - This constructor creates a dummy MachineInstr with 23667f660cb080965ea93ed6d7265a67100f2fe38e4Evan Cheng/// TID NULL and no operands. 237c0f64ffab93d11fb27a3b8a0707b77400918a20eEvan ChengMachineInstr::MachineInstr() 238f20c1a497fe3922ac718429d65a5fe396890575eChris Lattner : TID(0), NumImplicitOps(0), Parent(0) { 239aad5c0505183a5b7913f1a443a1f0650122551ccAlkis Evlogimenos // Make sure that we get added to a machine basicblock 240aad5c0505183a5b7913f1a443a1f0650122551ccAlkis Evlogimenos LeakDetector::addGarbageObject(this); 2417279122e668816bed0d4f38d3392bbab0140fad0Chris Lattner} 2427279122e668816bed0d4f38d3392bbab0140fad0Chris Lattner 24367f660cb080965ea93ed6d7265a67100f2fe38e4Evan Chengvoid MachineInstr::addImplicitDefUseOperands() { 24467f660cb080965ea93ed6d7265a67100f2fe38e4Evan Cheng if (TID->ImplicitDefs) 245a4161ee99478e7f8f9e33481e1c0dc79f0b4bd7dChris Lattner for (const unsigned *ImpDefs = TID->ImplicitDefs; *ImpDefs; ++ImpDefs) 2468019f41c0b7fda031d494e3900eada7d4e494772Chris Lattner addOperand(MachineOperand::CreateReg(*ImpDefs, true, true)); 24767f660cb080965ea93ed6d7265a67100f2fe38e4Evan Cheng if (TID->ImplicitUses) 248a4161ee99478e7f8f9e33481e1c0dc79f0b4bd7dChris Lattner for (const unsigned *ImpUses = TID->ImplicitUses; *ImpUses; ++ImpUses) 2498019f41c0b7fda031d494e3900eada7d4e494772Chris Lattner addOperand(MachineOperand::CreateReg(*ImpUses, false, true)); 250d7de496b23fca8145f777a56281457bf64e8bbadEvan Cheng} 251d7de496b23fca8145f777a56281457bf64e8bbadEvan Cheng 252d7de496b23fca8145f777a56281457bf64e8bbadEvan Cheng/// MachineInstr ctor - This constructor create a MachineInstr and add the 253c0f64ffab93d11fb27a3b8a0707b77400918a20eEvan Cheng/// implicit operands. It reserves space for number of operands specified by 254749c6f6b5ed301c84aac562e414486549d7b98ebChris Lattner/// TargetInstrDesc or the numOperands if it is not zero. (for 255c0f64ffab93d11fb27a3b8a0707b77400918a20eEvan Cheng/// instructions with variable number of operands). 256749c6f6b5ed301c84aac562e414486549d7b98ebChris LattnerMachineInstr::MachineInstr(const TargetInstrDesc &tid, bool NoImp) 257f20c1a497fe3922ac718429d65a5fe396890575eChris Lattner : TID(&tid), NumImplicitOps(0), Parent(0) { 258349c4952009525b27383e2120a6b3c998f39bd09Chris Lattner if (!NoImp && TID->getImplicitDefs()) 259349c4952009525b27383e2120a6b3c998f39bd09Chris Lattner for (const unsigned *ImpDefs = TID->getImplicitDefs(); *ImpDefs; ++ImpDefs) 260d7de496b23fca8145f777a56281457bf64e8bbadEvan Cheng NumImplicitOps++; 261349c4952009525b27383e2120a6b3c998f39bd09Chris Lattner if (!NoImp && TID->getImplicitUses()) 262349c4952009525b27383e2120a6b3c998f39bd09Chris Lattner for (const unsigned *ImpUses = TID->getImplicitUses(); *ImpUses; ++ImpUses) 263d7de496b23fca8145f777a56281457bf64e8bbadEvan Cheng NumImplicitOps++; 264349c4952009525b27383e2120a6b3c998f39bd09Chris Lattner Operands.reserve(NumImplicitOps + TID->getNumOperands()); 265fa9457276a2174aaf302240dd32d89900ad021aeEvan Cheng if (!NoImp) 266fa9457276a2174aaf302240dd32d89900ad021aeEvan Cheng addImplicitDefUseOperands(); 267d7de496b23fca8145f777a56281457bf64e8bbadEvan Cheng // Make sure that we get added to a machine basicblock 268d7de496b23fca8145f777a56281457bf64e8bbadEvan Cheng LeakDetector::addGarbageObject(this); 269d7de496b23fca8145f777a56281457bf64e8bbadEvan Cheng} 270d7de496b23fca8145f777a56281457bf64e8bbadEvan Cheng 271ddd7fcb887be752ec8167276a697994ad9cb9c4eChris Lattner/// MachineInstr ctor - Work exactly the same as the ctor above, except that the 272ddd7fcb887be752ec8167276a697994ad9cb9c4eChris Lattner/// MachineInstr is created and added to the end of the specified basic block. 273ddd7fcb887be752ec8167276a697994ad9cb9c4eChris Lattner/// 274c0f64ffab93d11fb27a3b8a0707b77400918a20eEvan ChengMachineInstr::MachineInstr(MachineBasicBlock *MBB, 275749c6f6b5ed301c84aac562e414486549d7b98ebChris Lattner const TargetInstrDesc &tid) 276f20c1a497fe3922ac718429d65a5fe396890575eChris Lattner : TID(&tid), NumImplicitOps(0), Parent(0) { 277ddd7fcb887be752ec8167276a697994ad9cb9c4eChris Lattner assert(MBB && "Cannot use inserting ctor with null basic block!"); 27867f660cb080965ea93ed6d7265a67100f2fe38e4Evan Cheng if (TID->ImplicitDefs) 279349c4952009525b27383e2120a6b3c998f39bd09Chris Lattner for (const unsigned *ImpDefs = TID->getImplicitDefs(); *ImpDefs; ++ImpDefs) 280d7de496b23fca8145f777a56281457bf64e8bbadEvan Cheng NumImplicitOps++; 28167f660cb080965ea93ed6d7265a67100f2fe38e4Evan Cheng if (TID->ImplicitUses) 282349c4952009525b27383e2120a6b3c998f39bd09Chris Lattner for (const unsigned *ImpUses = TID->getImplicitUses(); *ImpUses; ++ImpUses) 283d7de496b23fca8145f777a56281457bf64e8bbadEvan Cheng NumImplicitOps++; 284349c4952009525b27383e2120a6b3c998f39bd09Chris Lattner Operands.reserve(NumImplicitOps + TID->getNumOperands()); 28567f660cb080965ea93ed6d7265a67100f2fe38e4Evan Cheng addImplicitDefUseOperands(); 286aad5c0505183a5b7913f1a443a1f0650122551ccAlkis Evlogimenos // Make sure that we get added to a machine basicblock 287aad5c0505183a5b7913f1a443a1f0650122551ccAlkis Evlogimenos LeakDetector::addGarbageObject(this); 288ddd7fcb887be752ec8167276a697994ad9cb9c4eChris Lattner MBB->push_back(this); // Add instruction to end of basic block! 289ddd7fcb887be752ec8167276a697994ad9cb9c4eChris Lattner} 290ddd7fcb887be752ec8167276a697994ad9cb9c4eChris Lattner 291ce22e76996d3ff0930716fa60c29df60a7e0481bMisha Brukman/// MachineInstr ctor - Copies MachineInstr arg exactly 292ce22e76996d3ff0930716fa60c29df60a7e0481bMisha Brukman/// 293466b534a570f574ed485d875bbca8454f68dcb52Tanya LattnerMachineInstr::MachineInstr(const MachineInstr &MI) { 294749c6f6b5ed301c84aac562e414486549d7b98ebChris Lattner TID = &MI.getDesc(); 2956b2c05f3d3c7b44183c629485ade10c18b86828dEvan Cheng NumImplicitOps = MI.NumImplicitOps; 296943b5e117fe9a087f9aa529a2632c2d32cc22374Chris Lattner Operands.reserve(MI.getNumOperands()); 29769de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman MemOperands = MI.MemOperands; 298b5159ed0cb7943e5938782f7693beb18342165ceTanya Lattner 299ce22e76996d3ff0930716fa60c29df60a7e0481bMisha Brukman // Add operands 300e12d6abfdfc5141b2001f0c369a0e1525315b9c0Chris Lattner for (unsigned i = 0; i != MI.getNumOperands(); ++i) { 301943b5e117fe9a087f9aa529a2632c2d32cc22374Chris Lattner Operands.push_back(MI.getOperand(i)); 302e12d6abfdfc5141b2001f0c369a0e1525315b9c0Chris Lattner Operands.back().ParentMI = this; 303e12d6abfdfc5141b2001f0c369a0e1525315b9c0Chris Lattner } 3040c63e03e04d3982e1913479bba404c3debc9a27eTanya Lattner 305ce22e76996d3ff0930716fa60c29df60a7e0481bMisha Brukman // Set parent, next, and prev to null 306f20c1a497fe3922ac718429d65a5fe396890575eChris Lattner Parent = 0; 307f20c1a497fe3922ac718429d65a5fe396890575eChris Lattner Prev = 0; 308f20c1a497fe3922ac718429d65a5fe396890575eChris Lattner Next = 0; 309466b534a570f574ed485d875bbca8454f68dcb52Tanya Lattner} 310466b534a570f574ed485d875bbca8454f68dcb52Tanya Lattner 311466b534a570f574ed485d875bbca8454f68dcb52Tanya Lattner 312ce22e76996d3ff0930716fa60c29df60a7e0481bMisha BrukmanMachineInstr::~MachineInstr() { 313aad5c0505183a5b7913f1a443a1f0650122551ccAlkis Evlogimenos LeakDetector::removeGarbageObject(this); 314e12d6abfdfc5141b2001f0c369a0e1525315b9c0Chris Lattner#ifndef NDEBUG 31562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner for (unsigned i = 0, e = Operands.size(); i != e; ++i) { 316e12d6abfdfc5141b2001f0c369a0e1525315b9c0Chris Lattner assert(Operands[i].ParentMI == this && "ParentMI mismatch!"); 31762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner assert((!Operands[i].isReg() || !Operands[i].isOnRegUseList()) && 31862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner "Reg operand def/use list corrupted"); 31962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 320e12d6abfdfc5141b2001f0c369a0e1525315b9c0Chris Lattner#endif 321aad5c0505183a5b7913f1a443a1f0650122551ccAlkis Evlogimenos} 322aad5c0505183a5b7913f1a443a1f0650122551ccAlkis Evlogimenos 32367f660cb080965ea93ed6d7265a67100f2fe38e4Evan Cheng/// getOpcode - Returns the opcode of this MachineInstr. 32467f660cb080965ea93ed6d7265a67100f2fe38e4Evan Cheng/// 325cb648f90a26eb05ae8d508d500ca12881df50824Dan Gohmanint MachineInstr::getOpcode() const { 32667f660cb080965ea93ed6d7265a67100f2fe38e4Evan Cheng return TID->Opcode; 32767f660cb080965ea93ed6d7265a67100f2fe38e4Evan Cheng} 32867f660cb080965ea93ed6d7265a67100f2fe38e4Evan Cheng 32962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// getRegInfo - If this instruction is embedded into a MachineFunction, 33062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// return the MachineRegisterInfo object for the current function, otherwise 33162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// return null. 33262ed6b9ade63bf01717ce5274fa11e93e873d245Chris LattnerMachineRegisterInfo *MachineInstr::getRegInfo() { 33362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (MachineBasicBlock *MBB = getParent()) 33462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (MachineFunction *MF = MBB->getParent()) 33562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner return &MF->getRegInfo(); 33662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner return 0; 33762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner} 33862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 33962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// RemoveRegOperandsFromUseLists - Unlink all of the register operands in 34062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// this instruction from their respective use lists. This requires that the 34162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// operands already be on their use lists. 34262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattnervoid MachineInstr::RemoveRegOperandsFromUseLists() { 34362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner for (unsigned i = 0, e = Operands.size(); i != e; ++i) { 34462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (Operands[i].isReg()) 34562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands[i].RemoveRegOperandFromRegInfo(); 34662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 34762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner} 34862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 34962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// AddRegOperandsToUseLists - Add all of the register operands in 35062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// this instruction from their respective use lists. This requires that the 35162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// operands not be on their use lists yet. 35262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattnervoid MachineInstr::AddRegOperandsToUseLists(MachineRegisterInfo &RegInfo) { 35362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner for (unsigned i = 0, e = Operands.size(); i != e; ++i) { 35462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (Operands[i].isReg()) 35562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands[i].AddRegOperandToRegInfo(&RegInfo); 35662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 35762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner} 35862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 35962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 36062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// addOperand - Add the specified operand to the instruction. If it is an 36162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// implicit operand, it is added to the end of the operand list. If it is 36262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// an explicit operand it is added at the end of the explicit operand list 36362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// (before the first implicit operand). 36462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattnervoid MachineInstr::addOperand(const MachineOperand &Op) { 36562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner bool isImpReg = Op.isReg() && Op.isImplicit(); 36662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner assert((isImpReg || !OperandsComplete()) && 36762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner "Trying to add an operand to a machine instr that is already done!"); 36862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 36962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // If we are adding the operand to the end of the list, our job is simpler. 37062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // This is true most of the time, so this is a reasonable optimization. 37162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (isImpReg || NumImplicitOps == 0) { 37262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // We can only do this optimization if we know that the operand list won't 37362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // reallocate. 37462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (Operands.empty() || Operands.size()+1 <= Operands.capacity()) { 37562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands.push_back(Op); 37662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 37762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Set the parent of the operand. 37862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands.back().ParentMI = this; 37962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 38062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // If the operand is a register, update the operand's use list. 38162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (Op.isReg()) 38262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands.back().AddRegOperandToRegInfo(getRegInfo()); 38362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner return; 38462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 38562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 38662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 38762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Otherwise, we have to insert a real operand before any implicit ones. 38862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner unsigned OpNo = Operands.size()-NumImplicitOps; 38962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 39062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner MachineRegisterInfo *RegInfo = getRegInfo(); 39162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 39262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // If this instruction isn't embedded into a function, then we don't need to 39362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // update any operand lists. 39462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (RegInfo == 0) { 39562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Simple insertion, no reginfo update needed for other register operands. 39662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands.insert(Operands.begin()+OpNo, Op); 39762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands[OpNo].ParentMI = this; 39862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 39962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Do explicitly set the reginfo for this operand though, to ensure the 40062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // next/prev fields are properly nulled out. 40162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (Operands[OpNo].isReg()) 40262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands[OpNo].AddRegOperandToRegInfo(0); 40362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 40462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } else if (Operands.size()+1 <= Operands.capacity()) { 40562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Otherwise, we have to remove register operands from their register use 40662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // list, add the operand, then add the register operands back to their use 40762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // list. This also must handle the case when the operand list reallocates 40862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // to somewhere else. 40962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 41062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // If insertion of this operand won't cause reallocation of the operand 41162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // list, just remove the implicit operands, add the operand, then re-add all 41262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // the rest of the operands. 41362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner for (unsigned i = OpNo, e = Operands.size(); i != e; ++i) { 41462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner assert(Operands[i].isReg() && "Should only be an implicit reg!"); 41562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands[i].RemoveRegOperandFromRegInfo(); 41662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 41762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 41862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Add the operand. If it is a register, add it to the reg list. 41962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands.insert(Operands.begin()+OpNo, Op); 42062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands[OpNo].ParentMI = this; 42162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 42262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (Operands[OpNo].isReg()) 42362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands[OpNo].AddRegOperandToRegInfo(RegInfo); 42462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 42562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Re-add all the implicit ops. 42662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner for (unsigned i = OpNo+1, e = Operands.size(); i != e; ++i) { 42762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner assert(Operands[i].isReg() && "Should only be an implicit reg!"); 42862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands[i].AddRegOperandToRegInfo(RegInfo); 42962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 43062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } else { 43162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Otherwise, we will be reallocating the operand list. Remove all reg 43262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // operands from their list, then readd them after the operand list is 43362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // reallocated. 43462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner RemoveRegOperandsFromUseLists(); 43562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 43662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands.insert(Operands.begin()+OpNo, Op); 43762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands[OpNo].ParentMI = this; 43862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 43962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Re-add all the operands. 44062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner AddRegOperandsToUseLists(*RegInfo); 44162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 44262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner} 44362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 44462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// RemoveOperand - Erase an operand from an instruction, leaving it with one 44562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// fewer operand than it started with. 44662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// 44762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattnervoid MachineInstr::RemoveOperand(unsigned OpNo) { 44862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner assert(OpNo < Operands.size() && "Invalid operand number"); 44962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 45062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Special case removing the last one. 45162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (OpNo == Operands.size()-1) { 45262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // If needed, remove from the reg def/use list. 45362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (Operands.back().isReg() && Operands.back().isOnRegUseList()) 45462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands.back().RemoveRegOperandFromRegInfo(); 45562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 45662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands.pop_back(); 45762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner return; 45862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 45962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 46062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Otherwise, we are removing an interior operand. If we have reginfo to 46162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // update, remove all operands that will be shifted down from their reg lists, 46262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // move everything down, then re-add them. 46362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner MachineRegisterInfo *RegInfo = getRegInfo(); 46462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (RegInfo) { 46562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner for (unsigned i = OpNo, e = Operands.size(); i != e; ++i) { 46662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (Operands[i].isReg()) 46762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands[i].RemoveRegOperandFromRegInfo(); 46862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 46962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 47062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 47162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands.erase(Operands.begin()+OpNo); 47262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 47362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (RegInfo) { 47462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner for (unsigned i = OpNo, e = Operands.size(); i != e; ++i) { 47562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (Operands[i].isReg()) 47662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands[i].AddRegOperandToRegInfo(RegInfo); 47762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 47862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 47962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner} 48062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 48162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 48248d7c069c76882475c23de153bda9483cd3c9bb4Chris Lattner/// removeFromParent - This method unlinks 'this' from the containing basic 48348d7c069c76882475c23de153bda9483cd3c9bb4Chris Lattner/// block, and returns it, but does not delete it. 48448d7c069c76882475c23de153bda9483cd3c9bb4Chris LattnerMachineInstr *MachineInstr::removeFromParent() { 48548d7c069c76882475c23de153bda9483cd3c9bb4Chris Lattner assert(getParent() && "Not embedded in a basic block!"); 48648d7c069c76882475c23de153bda9483cd3c9bb4Chris Lattner getParent()->remove(this); 48748d7c069c76882475c23de153bda9483cd3c9bb4Chris Lattner return this; 48848d7c069c76882475c23de153bda9483cd3c9bb4Chris Lattner} 48948d7c069c76882475c23de153bda9483cd3c9bb4Chris Lattner 49048d7c069c76882475c23de153bda9483cd3c9bb4Chris Lattner 49121326fc2ad47ee7e73a8c0b03a4a0cc0b0a0c4e8Brian Gaeke/// OperandComplete - Return true if it's illegal to add a new operand 49221326fc2ad47ee7e73a8c0b03a4a0cc0b0a0c4e8Brian Gaeke/// 4932a90ba60175f93e7438165d8423100aa573c16c5Chris Lattnerbool MachineInstr::OperandsComplete() const { 494349c4952009525b27383e2120a6b3c998f39bd09Chris Lattner unsigned short NumOperands = TID->getNumOperands(); 4958f707e15fbd09ca948b86419bcb0c92470827ac9Chris Lattner if (!TID->isVariadic() && getNumOperands()-NumImplicitOps >= NumOperands) 4963497782f3843007de3be0c43e3ff206a01e2ccacVikram S. Adve return true; // Broken: we have all the operands of this instruction! 497413746e9833d97a8b463ef6a788aa326cf3829a2Chris Lattner return false; 49870bc4b5d1a3795a8f41be96723cfcbccac8e1671Vikram S. Adve} 49970bc4b5d1a3795a8f41be96723cfcbccac8e1671Vikram S. Adve 50019e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng/// getNumExplicitOperands - Returns the number of non-implicit operands. 50119e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng/// 50219e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Chengunsigned MachineInstr::getNumExplicitOperands() const { 503349c4952009525b27383e2120a6b3c998f39bd09Chris Lattner unsigned NumOperands = TID->getNumOperands(); 5048f707e15fbd09ca948b86419bcb0c92470827ac9Chris Lattner if (!TID->isVariadic()) 50519e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng return NumOperands; 50619e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng 50719e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng for (unsigned e = getNumOperands(); NumOperands != e; ++NumOperands) { 50819e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng const MachineOperand &MO = getOperand(NumOperands); 50919e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng if (!MO.isRegister() || !MO.isImplicit()) 51019e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng NumOperands++; 51119e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng } 51219e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng return NumOperands; 51319e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng} 51419e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng 5158ace2cd034be10c09be51daf08c3dda327f54262Chris Lattner 516bb81d97feb396a8bb21d074db1c57e9f66525f40Evan Cheng/// isDebugLabel - Returns true if the MachineInstr represents a debug label. 517bb81d97feb396a8bb21d074db1c57e9f66525f40Evan Cheng/// 518bb81d97feb396a8bb21d074db1c57e9f66525f40Evan Chengbool MachineInstr::isDebugLabel() const { 519bb81d97feb396a8bb21d074db1c57e9f66525f40Evan Cheng return getOpcode() == TargetInstrInfo::LABEL && getOperand(1).getImm() == 0; 520bb81d97feb396a8bb21d074db1c57e9f66525f40Evan Cheng} 521bb81d97feb396a8bb21d074db1c57e9f66525f40Evan Cheng 522faa510726f4b40aa4495e60e4d341c6467e3fb01Evan Cheng/// findRegisterUseOperandIdx() - Returns the MachineOperand that is a use of 52332eb1f1ca4220d2f24916e587ad7e8574d7d82a1Evan Cheng/// the specific register or -1 if it is not found. It further tightening 52476d7e76c15c258ec4a71fd75a2a32bca3a5e5e27Evan Cheng/// the search criteria to a use that kills the register if isKill is true. 525f277ee4be7edabb759a7f78138b693d72d0c263fEvan Chengint MachineInstr::findRegisterUseOperandIdx(unsigned Reg, bool isKill) const { 526576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 527f277ee4be7edabb759a7f78138b693d72d0c263fEvan Cheng const MachineOperand &MO = getOperand(i); 52892dfe2001e96f6e2b6d327e8816f38033f88b295Dan Gohman if (MO.isRegister() && MO.isUse() && MO.getReg() == Reg) 52976d7e76c15c258ec4a71fd75a2a32bca3a5e5e27Evan Cheng if (!isKill || MO.isKill()) 53032eb1f1ca4220d2f24916e587ad7e8574d7d82a1Evan Cheng return i; 531b371f457b0ea4a652a9f526ba4375c80ae542252Evan Cheng } 53232eb1f1ca4220d2f24916e587ad7e8574d7d82a1Evan Cheng return -1; 533b371f457b0ea4a652a9f526ba4375c80ae542252Evan Cheng} 534b371f457b0ea4a652a9f526ba4375c80ae542252Evan Cheng 535b371f457b0ea4a652a9f526ba4375c80ae542252Evan Cheng/// findRegisterDefOperand() - Returns the MachineOperand that is a def of 536b371f457b0ea4a652a9f526ba4375c80ae542252Evan Cheng/// the specific register or NULL if it is not found. 537b371f457b0ea4a652a9f526ba4375c80ae542252Evan ChengMachineOperand *MachineInstr::findRegisterDefOperand(unsigned Reg) { 538b371f457b0ea4a652a9f526ba4375c80ae542252Evan Cheng for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 539b371f457b0ea4a652a9f526ba4375c80ae542252Evan Cheng MachineOperand &MO = getOperand(i); 54092dfe2001e96f6e2b6d327e8816f38033f88b295Dan Gohman if (MO.isRegister() && MO.isDef() && MO.getReg() == Reg) 541576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng return &MO; 542576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng } 543576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng return NULL; 544576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng} 54519e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng 546f277ee4be7edabb759a7f78138b693d72d0c263fEvan Cheng/// findFirstPredOperandIdx() - Find the index of the first operand in the 547f277ee4be7edabb759a7f78138b693d72d0c263fEvan Cheng/// operand list that is used to represent the predicate. It returns -1 if 548f277ee4be7edabb759a7f78138b693d72d0c263fEvan Cheng/// none is found. 549f277ee4be7edabb759a7f78138b693d72d0c263fEvan Chengint MachineInstr::findFirstPredOperandIdx() const { 550749c6f6b5ed301c84aac562e414486549d7b98ebChris Lattner const TargetInstrDesc &TID = getDesc(); 551749c6f6b5ed301c84aac562e414486549d7b98ebChris Lattner if (TID.isPredicable()) { 55219e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng for (unsigned i = 0, e = getNumOperands(); i != e; ++i) 553749c6f6b5ed301c84aac562e414486549d7b98ebChris Lattner if (TID.OpInfo[i].isPredicate()) 554f277ee4be7edabb759a7f78138b693d72d0c263fEvan Cheng return i; 55519e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng } 55619e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng 557f277ee4be7edabb759a7f78138b693d72d0c263fEvan Cheng return -1; 55819e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng} 559576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng 56032dfbeada7292167bb488f36a71a5a6a519ddaffEvan Cheng/// isRegReDefinedByTwoAddr - Returns true if the Reg re-definition is due 56132dfbeada7292167bb488f36a71a5a6a519ddaffEvan Cheng/// to two addr elimination. 56232dfbeada7292167bb488f36a71a5a6a519ddaffEvan Chengbool MachineInstr::isRegReDefinedByTwoAddr(unsigned Reg) const { 563749c6f6b5ed301c84aac562e414486549d7b98ebChris Lattner const TargetInstrDesc &TID = getDesc(); 56432dfbeada7292167bb488f36a71a5a6a519ddaffEvan Cheng for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 56532dfbeada7292167bb488f36a71a5a6a519ddaffEvan Cheng const MachineOperand &MO1 = getOperand(i); 56632dfbeada7292167bb488f36a71a5a6a519ddaffEvan Cheng if (MO1.isRegister() && MO1.isDef() && MO1.getReg() == Reg) { 56732dfbeada7292167bb488f36a71a5a6a519ddaffEvan Cheng for (unsigned j = i+1; j < e; ++j) { 56832dfbeada7292167bb488f36a71a5a6a519ddaffEvan Cheng const MachineOperand &MO2 = getOperand(j); 56932dfbeada7292167bb488f36a71a5a6a519ddaffEvan Cheng if (MO2.isRegister() && MO2.isUse() && MO2.getReg() == Reg && 570749c6f6b5ed301c84aac562e414486549d7b98ebChris Lattner TID.getOperandConstraint(j, TOI::TIED_TO) == (int)i) 57132dfbeada7292167bb488f36a71a5a6a519ddaffEvan Cheng return true; 57232dfbeada7292167bb488f36a71a5a6a519ddaffEvan Cheng } 57332dfbeada7292167bb488f36a71a5a6a519ddaffEvan Cheng } 57432dfbeada7292167bb488f36a71a5a6a519ddaffEvan Cheng } 57532dfbeada7292167bb488f36a71a5a6a519ddaffEvan Cheng return false; 57632dfbeada7292167bb488f36a71a5a6a519ddaffEvan Cheng} 57732dfbeada7292167bb488f36a71a5a6a519ddaffEvan Cheng 578576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng/// copyKillDeadInfo - Copies kill / dead operand properties from MI. 579576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng/// 580576d123e130a8291669dd2384a3735cc4933fd00Evan Chengvoid MachineInstr::copyKillDeadInfo(const MachineInstr *MI) { 581576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng for (unsigned i = 0, e = MI->getNumOperands(); i != e; ++i) { 582576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng const MachineOperand &MO = MI->getOperand(i); 58392dfe2001e96f6e2b6d327e8816f38033f88b295Dan Gohman if (!MO.isRegister() || (!MO.isKill() && !MO.isDead())) 584576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng continue; 585576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng for (unsigned j = 0, ee = getNumOperands(); j != ee; ++j) { 586576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng MachineOperand &MOp = getOperand(j); 587576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng if (!MOp.isIdenticalTo(MO)) 588576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng continue; 589576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng if (MO.isKill()) 590576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng MOp.setIsKill(); 591576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng else 592576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng MOp.setIsDead(); 593576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng break; 594576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng } 595576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng } 596576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng} 597576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng 59819e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng/// copyPredicates - Copies predicate operand(s) from MI. 59919e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Chengvoid MachineInstr::copyPredicates(const MachineInstr *MI) { 600749c6f6b5ed301c84aac562e414486549d7b98ebChris Lattner const TargetInstrDesc &TID = MI->getDesc(); 601749c6f6b5ed301c84aac562e414486549d7b98ebChris Lattner if (TID.isPredicable()) { 60219e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng for (unsigned i = 0, e = MI->getNumOperands(); i != e; ++i) { 603749c6f6b5ed301c84aac562e414486549d7b98ebChris Lattner if (TID.OpInfo[i].isPredicate()) { 60419e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng // Predicated operands must be last operands. 6058019f41c0b7fda031d494e3900eada7d4e494772Chris Lattner addOperand(MI->getOperand(i)); 60619e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng } 60719e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng } 60819e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng } 60919e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng} 61019e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng 61121326fc2ad47ee7e73a8c0b03a4a0cc0b0a0c4e8Brian Gaekevoid MachineInstr::dump() const { 612e81561909d128c6e2d8033cb5465a49b2596b26aBill Wendling cerr << " " << *this; 61370bc4b5d1a3795a8f41be96723cfcbccac8e1671Vikram S. Adve} 61470bc4b5d1a3795a8f41be96723cfcbccac8e1671Vikram S. Adve 615b140762a45d21aaed054f15adaff0fc2274d939dTanya Lattnervoid MachineInstr::print(std::ostream &OS, const TargetMachine *TM) const { 616e3087890ac7f2fcf4697f8e09091e9a384311b9cChris Lattner // Specialize printing if op#0 is definition 6176a592271fb2946a0704b06fd66199987cdd40b3cChris Lattner unsigned StartOp = 0; 61892dfe2001e96f6e2b6d327e8816f38033f88b295Dan Gohman if (getNumOperands() && getOperand(0).isRegister() && getOperand(0).isDef()) { 619f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner getOperand(0).print(OS, TM); 6206a592271fb2946a0704b06fd66199987cdd40b3cChris Lattner OS << " = "; 6216a592271fb2946a0704b06fd66199987cdd40b3cChris Lattner ++StartOp; // Don't print this operand again! 6226a592271fb2946a0704b06fd66199987cdd40b3cChris Lattner } 623b140762a45d21aaed054f15adaff0fc2274d939dTanya Lattner 624749c6f6b5ed301c84aac562e414486549d7b98ebChris Lattner OS << getDesc().getName(); 625edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 6266a592271fb2946a0704b06fd66199987cdd40b3cChris Lattner for (unsigned i = StartOp, e = getNumOperands(); i != e; ++i) { 6276a592271fb2946a0704b06fd66199987cdd40b3cChris Lattner if (i != StartOp) 6286a592271fb2946a0704b06fd66199987cdd40b3cChris Lattner OS << ","; 6296a592271fb2946a0704b06fd66199987cdd40b3cChris Lattner OS << " "; 630f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner getOperand(i).print(OS, TM); 6311049164aa6b06d91d9b3b557a9a213eaf3f6319aChris Lattner } 632edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 63369de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman if (getNumMemOperands() > 0) { 63469de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman OS << ", SV:"; 63569de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman for (unsigned i = 0; i < getNumMemOperands(); i++) { 63669de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman const MemOperand &MRO = getMemOperand(i); 63769de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman const Value *V = MRO.getValue(); 63869de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman 63969de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman assert(V && "SV missing."); 64069de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman assert((MRO.isLoad() || MRO.isStore()) && 64169de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman "SV has to be a load, store or both."); 64269de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman 64369de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman if (MRO.isVolatile()) 64469de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman OS << "Volatile "; 64569de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman if (MRO.isLoad()) 64669de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman OS << "LD "; 64769de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman if (MRO.isStore()) 64869de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman OS << "ST "; 64969de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman 65069de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman OS << MRO.getSize(); 65169de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman 65269de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman if (!V->getName().empty()) 65369de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman OS << "[" << V->getName() << " + " << MRO.getOffset() << "]"; 65469de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman else if (isa<PseudoSourceValue>(V)) 65569de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman OS << "[" << *V << " + " << MRO.getOffset() << "]"; 65669de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman else 65769de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman OS << "[" << V << " + " << MRO.getOffset() << "]"; 65869de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman } 65969de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman } 66069de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman 6611049164aa6b06d91d9b3b557a9a213eaf3f6319aChris Lattner OS << "\n"; 6621049164aa6b06d91d9b3b557a9a213eaf3f6319aChris Lattner} 6631049164aa6b06d91d9b3b557a9a213eaf3f6319aChris Lattner 664b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Andersonbool MachineInstr::addRegisterKilled(unsigned IncomingReg, 665b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson const MRegisterInfo *RegInfo, 666b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson bool AddIfNotFound) { 667b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson bool Found = false; 668b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 669b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson MachineOperand &MO = getOperand(i); 670b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson if (MO.isRegister() && MO.isUse()) { 671b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson unsigned Reg = MO.getReg(); 672b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson if (!Reg) 673b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson continue; 674b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson if (Reg == IncomingReg) { 675b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson MO.setIsKill(); 676b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson Found = true; 677b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson break; 678b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson } else if (MRegisterInfo::isPhysicalRegister(Reg) && 679b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson MRegisterInfo::isPhysicalRegister(IncomingReg) && 680b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson RegInfo->isSuperRegister(IncomingReg, Reg) && 681b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson MO.isKill()) 682b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson // A super-register kill already exists. 683b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson Found = true; 684b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson } 685b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson } 686b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson 687b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson // If not found, this means an alias of one of the operand is killed. Add a 688b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson // new implicit operand if required. 689b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson if (!Found && AddIfNotFound) { 690b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson addOperand(MachineOperand::CreateReg(IncomingReg, false/*IsDef*/, 691b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson true/*IsImp*/,true/*IsKill*/)); 692b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson return true; 693b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson } 694b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson return Found; 695b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson} 696b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson 697b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Andersonbool MachineInstr::addRegisterDead(unsigned IncomingReg, 698b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson const MRegisterInfo *RegInfo, 699b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson bool AddIfNotFound) { 700b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson bool Found = false; 701b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 702b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson MachineOperand &MO = getOperand(i); 703b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson if (MO.isRegister() && MO.isDef()) { 704b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson unsigned Reg = MO.getReg(); 705b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson if (!Reg) 706b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson continue; 707b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson if (Reg == IncomingReg) { 708b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson MO.setIsDead(); 709b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson Found = true; 710b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson break; 711b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson } else if (MRegisterInfo::isPhysicalRegister(Reg) && 712b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson MRegisterInfo::isPhysicalRegister(IncomingReg) && 713b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson RegInfo->isSuperRegister(IncomingReg, Reg) && 714b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson MO.isDead()) 715b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson // There exists a super-register that's marked dead. 716b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson return true; 717b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson } 718b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson } 719b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson 720b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson // If not found, this means an alias of one of the operand is dead. Add a 721b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson // new implicit operand. 722b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson if (!Found && AddIfNotFound) { 723b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson addOperand(MachineOperand::CreateReg(IncomingReg, true/*IsDef*/, 724b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson true/*IsImp*/,false/*IsKill*/, 725b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson true/*IsDead*/)); 726b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson return true; 727b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson } 728b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson return Found; 729b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson} 730b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson 731b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson/// copyKillDeadInfo - copies killed/dead information from one instr to another 732b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Andersonvoid MachineInstr::copyKillDeadInfo(MachineInstr *OldMI, 733b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson const MRegisterInfo *RegInfo) { 734b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson // If the instruction defines any virtual registers, update the VarInfo, 735b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson // kill and dead information for the instruction. 736b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson for (unsigned i = 0, e = OldMI->getNumOperands(); i != e; ++i) { 737b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson MachineOperand &MO = OldMI->getOperand(i); 738b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson if (MO.isRegister() && MO.getReg() && 739b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson MRegisterInfo::isVirtualRegister(MO.getReg())) { 740b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson unsigned Reg = MO.getReg(); 741b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson if (MO.isDef()) { 742b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson if (MO.isDead()) { 743b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson MO.setIsDead(false); 744b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson addRegisterDead(Reg, RegInfo); 745b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson } 746b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson } 747b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson if (MO.isKill()) { 748b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson MO.setIsKill(false); 749b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson addRegisterKilled(Reg, RegInfo); 750b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson } 751b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson } 752b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson } 753b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson} 754