MachineInstr.cpp revision a24752ff43dc1ad8c18c5d9e78549c45f62b980e
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 14e8b7ccf0c9a06831266d690d0b10ead71e0a4ac5Nate Begeman#include "llvm/Constants.h" 15822b4fb896846b87dd11a330ae13f2239329aeefChris Lattner#include "llvm/CodeGen/MachineInstr.h" 1684bc5427d6883f73cfeae3da640acd011d35c006Chris Lattner#include "llvm/Value.h" 178517e1f0beea9b5e47974f083396d53294c390adChris Lattner#include "llvm/CodeGen/MachineFunction.h" 1862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner#include "llvm/CodeGen/MachineRegisterInfo.h" 1969de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman#include "llvm/CodeGen/PseudoSourceValue.h" 201049164aa6b06d91d9b3b557a9a213eaf3f6319aChris Lattner#include "llvm/Target/TargetMachine.h" 21bb81d97feb396a8bb21d074db1c57e9f66525f40Evan Cheng#include "llvm/Target/TargetInstrInfo.h" 22f14cf85e334ff03bbdd23e473f14ffa4fb025e94Chris Lattner#include "llvm/Target/TargetInstrDesc.h" 236f0d024a534af18d9e60b3ea757376cd8a3a980eDan Gohman#include "llvm/Target/TargetRegisterInfo.h" 242c3f7ae3843bdc9dcfe85393e178211976c1f9bdDan Gohman#include "llvm/Support/LeakDetector.h" 25ce42e404a26454f4332c2c350c75ad27bbbb16f7Dan Gohman#include "llvm/Support/MathExtras.h" 26a09362eb975730ac624c0bd210a95655ee105296Bill Wendling#include "llvm/Support/Streams.h" 27edfb72c6288118ab9c900a560ded89dfaa107296Chris Lattner#include "llvm/Support/raw_ostream.h" 28b8d2f550b84523e8a73198f98e5d450ec3b4fee7Dan Gohman#include "llvm/ADT/FoldingSet.h" 29c21c5eeb4f56f160e79522df2d3aab5cfe73c05dJeff Cohen#include <ostream> 300742b59913a7760eb26f08121cd244a37e83e3b3Chris Lattnerusing namespace llvm; 31d0fde30ce850b78371fd1386338350591f9ff494Brian Gaeke 32f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner//===----------------------------------------------------------------------===// 33f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner// MachineOperand Implementation 34f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner//===----------------------------------------------------------------------===// 35f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner 3662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// AddRegOperandToRegInfo - Add this register operand to the specified 3762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// MachineRegisterInfo. If it is null, then the next/prev fields should be 3862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// explicitly nulled out. 3962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattnervoid MachineOperand::AddRegOperandToRegInfo(MachineRegisterInfo *RegInfo) { 40d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman assert(isReg() && "Can only add reg operand to use lists"); 4162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 4262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // If the reginfo pointer is null, just explicitly null out or next/prev 4362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // pointers, to ensure they are not garbage. 4462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (RegInfo == 0) { 4562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Contents.Reg.Prev = 0; 4662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Contents.Reg.Next = 0; 4762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner return; 4862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 4962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 5062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Otherwise, add this operand to the head of the registers use/def list. 5180fe5311b5e9e5c4642ff46ba2377173c17797f6Chris Lattner MachineOperand **Head = &RegInfo->getRegUseDefListHead(getReg()); 5262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 5380fe5311b5e9e5c4642ff46ba2377173c17797f6Chris Lattner // For SSA values, we prefer to keep the definition at the start of the list. 5480fe5311b5e9e5c4642ff46ba2377173c17797f6Chris Lattner // we do this by skipping over the definition if it is at the head of the 5580fe5311b5e9e5c4642ff46ba2377173c17797f6Chris Lattner // list. 5680fe5311b5e9e5c4642ff46ba2377173c17797f6Chris Lattner if (*Head && (*Head)->isDef()) 5780fe5311b5e9e5c4642ff46ba2377173c17797f6Chris Lattner Head = &(*Head)->Contents.Reg.Next; 5880fe5311b5e9e5c4642ff46ba2377173c17797f6Chris Lattner 5980fe5311b5e9e5c4642ff46ba2377173c17797f6Chris Lattner Contents.Reg.Next = *Head; 6062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (Contents.Reg.Next) { 6162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner assert(getReg() == Contents.Reg.Next->getReg() && 6262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner "Different regs on the same list!"); 6362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Contents.Reg.Next->Contents.Reg.Prev = &Contents.Reg.Next; 6462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 6562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 6680fe5311b5e9e5c4642ff46ba2377173c17797f6Chris Lattner Contents.Reg.Prev = Head; 6780fe5311b5e9e5c4642ff46ba2377173c17797f6Chris Lattner *Head = this; 6862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner} 6962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 7062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattnervoid MachineOperand::setReg(unsigned Reg) { 7162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (getReg() == Reg) return; // No change. 7262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 7362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Otherwise, we have to change the register. If this operand is embedded 7462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // into a machine function, we need to update the old and new register's 7562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // use/def lists. 7662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (MachineInstr *MI = getParent()) 7762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (MachineBasicBlock *MBB = MI->getParent()) 7862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (MachineFunction *MF = MBB->getParent()) { 7962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner RemoveRegOperandFromRegInfo(); 8062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Contents.Reg.RegNo = Reg; 8162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner AddRegOperandToRegInfo(&MF->getRegInfo()); 8262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner return; 8362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 8462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 8562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Otherwise, just change the register, no problem. :) 8662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Contents.Reg.RegNo = Reg; 8762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner} 8862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 8962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// ChangeToImmediate - Replace this operand with a new immediate operand of 9062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// the specified value. If an operand is known to be an immediate already, 9162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// the setImm method should be used. 9262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattnervoid MachineOperand::ChangeToImmediate(int64_t ImmVal) { 9362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // If this operand is currently a register operand, and if this is in a 9462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // function, deregister the operand from the register's use/def list. 95d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (isReg() && getParent() && getParent()->getParent() && 9662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner getParent()->getParent()->getParent()) 9762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner RemoveRegOperandFromRegInfo(); 9862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 9962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner OpKind = MO_Immediate; 10062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Contents.ImmVal = ImmVal; 10162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner} 10262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 10362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// ChangeToRegister - Replace this operand with a new register operand of 10462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// the specified value. If an operand is known to be an register already, 10562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// the setReg method should be used. 10662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattnervoid MachineOperand::ChangeToRegister(unsigned Reg, bool isDef, bool isImp, 107e009180f2bbcf5edbe3b583936c37c4b3be2d082Dale Johannesen bool isKill, bool isDead) { 10862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // If this operand is already a register operand, use setReg to update the 10962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // register's use/def lists. 110d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (isReg()) { 111e009180f2bbcf5edbe3b583936c37c4b3be2d082Dale Johannesen assert(!isEarlyClobber()); 11262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner setReg(Reg); 11362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } else { 11462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Otherwise, change this to a register and set the reg#. 11562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner OpKind = MO_Register; 11662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Contents.Reg.RegNo = Reg; 11762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 11862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // If this operand is embedded in a function, add the operand to the 11962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // register's use/def list. 12062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (MachineInstr *MI = getParent()) 12162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (MachineBasicBlock *MBB = MI->getParent()) 12262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (MachineFunction *MF = MBB->getParent()) 12362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner AddRegOperandToRegInfo(&MF->getRegInfo()); 12462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 12562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 12662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner IsDef = isDef; 12762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner IsImp = isImp; 12862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner IsKill = isKill; 12962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner IsDead = isDead; 130e009180f2bbcf5edbe3b583936c37c4b3be2d082Dale Johannesen IsEarlyClobber = false; 13162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner SubReg = 0; 13262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner} 13362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 134f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner/// isIdenticalTo - Return true if this operand is identical to the specified 135f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner/// operand. 136f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattnerbool MachineOperand::isIdenticalTo(const MachineOperand &Other) const { 137f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner if (getType() != Other.getType()) return false; 138f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner 139f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner switch (getType()) { 140f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner default: assert(0 && "Unrecognized operand type"); 141f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_Register: 142f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner return getReg() == Other.getReg() && isDef() == Other.isDef() && 143f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner getSubReg() == Other.getSubReg(); 144f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_Immediate: 145f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner return getImm() == Other.getImm(); 146e8b7ccf0c9a06831266d690d0b10ead71e0a4ac5Nate Begeman case MachineOperand::MO_FPImmediate: 147e8b7ccf0c9a06831266d690d0b10ead71e0a4ac5Nate Begeman return getFPImm() == Other.getFPImm(); 148f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_MachineBasicBlock: 149f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner return getMBB() == Other.getMBB(); 150f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_FrameIndex: 1518aa797aa51cd4ea1ec6f46f4891a6897944b75b2Chris Lattner return getIndex() == Other.getIndex(); 152f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_ConstantPoolIndex: 1538aa797aa51cd4ea1ec6f46f4891a6897944b75b2Chris Lattner return getIndex() == Other.getIndex() && getOffset() == Other.getOffset(); 154f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_JumpTableIndex: 1558aa797aa51cd4ea1ec6f46f4891a6897944b75b2Chris Lattner return getIndex() == Other.getIndex(); 156f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_GlobalAddress: 157f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner return getGlobal() == Other.getGlobal() && getOffset() == Other.getOffset(); 158f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_ExternalSymbol: 159f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner return !strcmp(getSymbolName(), Other.getSymbolName()) && 160f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner getOffset() == Other.getOffset(); 161f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner } 162f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner} 163f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner 164f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner/// print - Print the specified machine operand. 165f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner/// 166f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattnervoid MachineOperand::print(std::ostream &OS, const TargetMachine *TM) const { 1675ca6bd14a00ba5310ce1a632d3a0cc8f8af31433Mon P Wang raw_os_ostream RawOS(OS); 1685ca6bd14a00ba5310ce1a632d3a0cc8f8af31433Mon P Wang print(RawOS, TM); 1695ca6bd14a00ba5310ce1a632d3a0cc8f8af31433Mon P Wang} 1705ca6bd14a00ba5310ce1a632d3a0cc8f8af31433Mon P Wang 1715ca6bd14a00ba5310ce1a632d3a0cc8f8af31433Mon P Wangvoid MachineOperand::print(raw_ostream &OS, const TargetMachine *TM) const { 172f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner switch (getType()) { 173f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_Register: 1746f0d024a534af18d9e60b3ea757376cd8a3a980eDan Gohman if (getReg() == 0 || TargetRegisterInfo::isVirtualRegister(getReg())) { 175f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner OS << "%reg" << getReg(); 176f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner } else { 177f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner // If the instruction is embedded into a basic block, we can find the 17862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // target info for the instruction. 179f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner if (TM == 0) 180f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner if (const MachineInstr *MI = getParent()) 181f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner if (const MachineBasicBlock *MBB = MI->getParent()) 182f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner if (const MachineFunction *MF = MBB->getParent()) 183f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner TM = &MF->getTarget(); 184f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner 185f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner if (TM) 186e6d088acc90e422451e098555d383d4d65b6ce6bBill Wendling OS << "%" << TM->getRegisterInfo()->get(getReg()).Name; 187f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner else 188f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner OS << "%mreg" << getReg(); 189f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner } 1902ccc83966914593d98af5671ce10a3bf2dcf7513Dan Gohman 1912ccc83966914593d98af5671ce10a3bf2dcf7513Dan Gohman if (getSubReg() != 0) { 1922ccc83966914593d98af5671ce10a3bf2dcf7513Dan Gohman OS << ":" << getSubReg(); 1932ccc83966914593d98af5671ce10a3bf2dcf7513Dan Gohman } 1942ccc83966914593d98af5671ce10a3bf2dcf7513Dan Gohman 19586b49f8e2de796cb46c7c8b6a4c4900533fd53f4Dale Johannesen if (isDef() || isKill() || isDead() || isImplicit() || isEarlyClobber()) { 196f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner OS << "<"; 197f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner bool NeedComma = false; 198f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner if (isImplicit()) { 19991aac1015e6714d959801dd8d60f55a72827dc4dDale Johannesen if (NeedComma) OS << ","; 200f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner OS << (isDef() ? "imp-def" : "imp-use"); 201f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner NeedComma = true; 202f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner } else if (isDef()) { 20391aac1015e6714d959801dd8d60f55a72827dc4dDale Johannesen if (NeedComma) OS << ","; 204913d3dfac43f29921467f33aa743f28ee1bfc5d1Dale Johannesen if (isEarlyClobber()) 205913d3dfac43f29921467f33aa743f28ee1bfc5d1Dale Johannesen OS << "earlyclobber,"; 206f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner OS << "def"; 207f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner NeedComma = true; 208f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner } 209f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner if (isKill() || isDead()) { 210181eb737b28628adc4376b973610a02039385026Bill Wendling if (NeedComma) OS << ","; 211181eb737b28628adc4376b973610a02039385026Bill Wendling if (isKill()) OS << "kill"; 212181eb737b28628adc4376b973610a02039385026Bill Wendling if (isDead()) OS << "dead"; 213f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner } 214f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner OS << ">"; 215f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner } 216f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner break; 217f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_Immediate: 218f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner OS << getImm(); 219f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner break; 220e8b7ccf0c9a06831266d690d0b10ead71e0a4ac5Nate Begeman case MachineOperand::MO_FPImmediate: 221e8b7ccf0c9a06831266d690d0b10ead71e0a4ac5Nate Begeman if (getFPImm()->getType() == Type::FloatTy) { 222e8b7ccf0c9a06831266d690d0b10ead71e0a4ac5Nate Begeman OS << getFPImm()->getValueAPF().convertToFloat(); 223e8b7ccf0c9a06831266d690d0b10ead71e0a4ac5Nate Begeman } else { 224e8b7ccf0c9a06831266d690d0b10ead71e0a4ac5Nate Begeman OS << getFPImm()->getValueAPF().convertToDouble(); 225e8b7ccf0c9a06831266d690d0b10ead71e0a4ac5Nate Begeman } 226e8b7ccf0c9a06831266d690d0b10ead71e0a4ac5Nate Begeman break; 227f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_MachineBasicBlock: 228f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner OS << "mbb<" 2298aa797aa51cd4ea1ec6f46f4891a6897944b75b2Chris Lattner << ((Value*)getMBB()->getBasicBlock())->getName() 2308aa797aa51cd4ea1ec6f46f4891a6897944b75b2Chris Lattner << "," << (void*)getMBB() << ">"; 231f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner break; 232f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_FrameIndex: 2338aa797aa51cd4ea1ec6f46f4891a6897944b75b2Chris Lattner OS << "<fi#" << getIndex() << ">"; 234f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner break; 235f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_ConstantPoolIndex: 2368aa797aa51cd4ea1ec6f46f4891a6897944b75b2Chris Lattner OS << "<cp#" << getIndex(); 237f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner if (getOffset()) OS << "+" << getOffset(); 238f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner OS << ">"; 239f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner break; 240f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_JumpTableIndex: 2418aa797aa51cd4ea1ec6f46f4891a6897944b75b2Chris Lattner OS << "<jt#" << getIndex() << ">"; 242f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner break; 243f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_GlobalAddress: 244f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner OS << "<ga:" << ((Value*)getGlobal())->getName(); 245f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner if (getOffset()) OS << "+" << getOffset(); 246f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner OS << ">"; 247f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner break; 248f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_ExternalSymbol: 249f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner OS << "<es:" << getSymbolName(); 250f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner if (getOffset()) OS << "+" << getOffset(); 251f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner OS << ">"; 252f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner break; 253f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner default: 254f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner assert(0 && "Unrecognized operand type"); 255f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner } 256f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner} 257f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner 258f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner//===----------------------------------------------------------------------===// 259ce42e404a26454f4332c2c350c75ad27bbbb16f7Dan Gohman// MachineMemOperand Implementation 260ce42e404a26454f4332c2c350c75ad27bbbb16f7Dan Gohman//===----------------------------------------------------------------------===// 261ce42e404a26454f4332c2c350c75ad27bbbb16f7Dan Gohman 262ce42e404a26454f4332c2c350c75ad27bbbb16f7Dan GohmanMachineMemOperand::MachineMemOperand(const Value *v, unsigned int f, 263ce42e404a26454f4332c2c350c75ad27bbbb16f7Dan Gohman int64_t o, uint64_t s, unsigned int a) 264ce42e404a26454f4332c2c350c75ad27bbbb16f7Dan Gohman : Offset(o), Size(s), V(v), 265ce42e404a26454f4332c2c350c75ad27bbbb16f7Dan Gohman Flags((f & 7) | ((Log2_32(a) + 1) << 3)) { 266f1bf29e648a25a440d3dcf5a445b30c4129c9bcaDan Gohman assert(isPowerOf2_32(a) && "Alignment is not a power of 2!"); 267c5e1f98fdf44993c2bfe4c1ef633b2358cd718c1Dan Gohman assert((isLoad() || isStore()) && "Not a load/store!"); 268ce42e404a26454f4332c2c350c75ad27bbbb16f7Dan Gohman} 269ce42e404a26454f4332c2c350c75ad27bbbb16f7Dan Gohman 270b8d2f550b84523e8a73198f98e5d450ec3b4fee7Dan Gohman/// Profile - Gather unique data for the object. 271b8d2f550b84523e8a73198f98e5d450ec3b4fee7Dan Gohman/// 272b8d2f550b84523e8a73198f98e5d450ec3b4fee7Dan Gohmanvoid MachineMemOperand::Profile(FoldingSetNodeID &ID) const { 273b8d2f550b84523e8a73198f98e5d450ec3b4fee7Dan Gohman ID.AddInteger(Offset); 274b8d2f550b84523e8a73198f98e5d450ec3b4fee7Dan Gohman ID.AddInteger(Size); 275b8d2f550b84523e8a73198f98e5d450ec3b4fee7Dan Gohman ID.AddPointer(V); 276b8d2f550b84523e8a73198f98e5d450ec3b4fee7Dan Gohman ID.AddInteger(Flags); 277b8d2f550b84523e8a73198f98e5d450ec3b4fee7Dan Gohman} 278b8d2f550b84523e8a73198f98e5d450ec3b4fee7Dan Gohman 279ce42e404a26454f4332c2c350c75ad27bbbb16f7Dan Gohman//===----------------------------------------------------------------------===// 280f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner// MachineInstr Implementation 281f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner//===----------------------------------------------------------------------===// 282f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner 283c0f64ffab93d11fb27a3b8a0707b77400918a20eEvan Cheng/// MachineInstr ctor - This constructor creates a dummy MachineInstr with 28467f660cb080965ea93ed6d7265a67100f2fe38e4Evan Cheng/// TID NULL and no operands. 285c0f64ffab93d11fb27a3b8a0707b77400918a20eEvan ChengMachineInstr::MachineInstr() 28606efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen : TID(0), NumImplicitOps(0), Parent(0), debugLoc(DebugLoc::getUnknownLoc()) { 2872c3f7ae3843bdc9dcfe85393e178211976c1f9bdDan Gohman // Make sure that we get added to a machine basicblock 2882c3f7ae3843bdc9dcfe85393e178211976c1f9bdDan Gohman LeakDetector::addGarbageObject(this); 2897279122e668816bed0d4f38d3392bbab0140fad0Chris Lattner} 2907279122e668816bed0d4f38d3392bbab0140fad0Chris Lattner 29167f660cb080965ea93ed6d7265a67100f2fe38e4Evan Chengvoid MachineInstr::addImplicitDefUseOperands() { 29267f660cb080965ea93ed6d7265a67100f2fe38e4Evan Cheng if (TID->ImplicitDefs) 293a4161ee99478e7f8f9e33481e1c0dc79f0b4bd7dChris Lattner for (const unsigned *ImpDefs = TID->ImplicitDefs; *ImpDefs; ++ImpDefs) 2948019f41c0b7fda031d494e3900eada7d4e494772Chris Lattner addOperand(MachineOperand::CreateReg(*ImpDefs, true, true)); 29567f660cb080965ea93ed6d7265a67100f2fe38e4Evan Cheng if (TID->ImplicitUses) 296a4161ee99478e7f8f9e33481e1c0dc79f0b4bd7dChris Lattner for (const unsigned *ImpUses = TID->ImplicitUses; *ImpUses; ++ImpUses) 2978019f41c0b7fda031d494e3900eada7d4e494772Chris Lattner addOperand(MachineOperand::CreateReg(*ImpUses, false, true)); 298d7de496b23fca8145f777a56281457bf64e8bbadEvan Cheng} 299d7de496b23fca8145f777a56281457bf64e8bbadEvan Cheng 300d7de496b23fca8145f777a56281457bf64e8bbadEvan Cheng/// MachineInstr ctor - This constructor create a MachineInstr and add the 301c0f64ffab93d11fb27a3b8a0707b77400918a20eEvan Cheng/// implicit operands. It reserves space for number of operands specified by 302749c6f6b5ed301c84aac562e414486549d7b98ebChris Lattner/// TargetInstrDesc or the numOperands if it is not zero. (for 303c0f64ffab93d11fb27a3b8a0707b77400918a20eEvan Cheng/// instructions with variable number of operands). 304749c6f6b5ed301c84aac562e414486549d7b98ebChris LattnerMachineInstr::MachineInstr(const TargetInstrDesc &tid, bool NoImp) 30506efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen : TID(&tid), NumImplicitOps(0), Parent(0), 30606efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen debugLoc(DebugLoc::getUnknownLoc()) { 307349c4952009525b27383e2120a6b3c998f39bd09Chris Lattner if (!NoImp && TID->getImplicitDefs()) 308349c4952009525b27383e2120a6b3c998f39bd09Chris Lattner for (const unsigned *ImpDefs = TID->getImplicitDefs(); *ImpDefs; ++ImpDefs) 309d7de496b23fca8145f777a56281457bf64e8bbadEvan Cheng NumImplicitOps++; 310349c4952009525b27383e2120a6b3c998f39bd09Chris Lattner if (!NoImp && TID->getImplicitUses()) 311349c4952009525b27383e2120a6b3c998f39bd09Chris Lattner for (const unsigned *ImpUses = TID->getImplicitUses(); *ImpUses; ++ImpUses) 312d7de496b23fca8145f777a56281457bf64e8bbadEvan Cheng NumImplicitOps++; 313349c4952009525b27383e2120a6b3c998f39bd09Chris Lattner Operands.reserve(NumImplicitOps + TID->getNumOperands()); 314fa9457276a2174aaf302240dd32d89900ad021aeEvan Cheng if (!NoImp) 315fa9457276a2174aaf302240dd32d89900ad021aeEvan Cheng addImplicitDefUseOperands(); 3162c3f7ae3843bdc9dcfe85393e178211976c1f9bdDan Gohman // Make sure that we get added to a machine basicblock 3172c3f7ae3843bdc9dcfe85393e178211976c1f9bdDan Gohman LeakDetector::addGarbageObject(this); 318d7de496b23fca8145f777a56281457bf64e8bbadEvan Cheng} 319d7de496b23fca8145f777a56281457bf64e8bbadEvan Cheng 32006efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen/// MachineInstr ctor - As above, but with a DebugLoc. 32106efc02854a96a9f92edc3bf46b0451f488cf2e6Dale JohannesenMachineInstr::MachineInstr(const TargetInstrDesc &tid, const DebugLoc dl, 32206efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen bool NoImp) 32306efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen : TID(&tid), NumImplicitOps(0), Parent(0), debugLoc(dl) { 32406efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen if (!NoImp && TID->getImplicitDefs()) 32506efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen for (const unsigned *ImpDefs = TID->getImplicitDefs(); *ImpDefs; ++ImpDefs) 32606efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen NumImplicitOps++; 32706efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen if (!NoImp && TID->getImplicitUses()) 32806efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen for (const unsigned *ImpUses = TID->getImplicitUses(); *ImpUses; ++ImpUses) 32906efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen NumImplicitOps++; 33006efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen Operands.reserve(NumImplicitOps + TID->getNumOperands()); 33106efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen if (!NoImp) 33206efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen addImplicitDefUseOperands(); 33306efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen // Make sure that we get added to a machine basicblock 33406efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen LeakDetector::addGarbageObject(this); 33506efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen} 33606efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen 33706efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen/// MachineInstr ctor - Work exactly the same as the ctor two above, except 33806efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen/// that the MachineInstr is created and added to the end of the specified 33906efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen/// basic block. 34006efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen/// 34106efc02854a96a9f92edc3bf46b0451f488cf2e6Dale JohannesenMachineInstr::MachineInstr(MachineBasicBlock *MBB, const TargetInstrDesc &tid) 34206efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen : TID(&tid), NumImplicitOps(0), Parent(0), 34306efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen debugLoc(DebugLoc::getUnknownLoc()) { 34406efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen assert(MBB && "Cannot use inserting ctor with null basic block!"); 34506efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen if (TID->ImplicitDefs) 34606efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen for (const unsigned *ImpDefs = TID->getImplicitDefs(); *ImpDefs; ++ImpDefs) 34706efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen NumImplicitOps++; 34806efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen if (TID->ImplicitUses) 34906efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen for (const unsigned *ImpUses = TID->getImplicitUses(); *ImpUses; ++ImpUses) 35006efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen NumImplicitOps++; 35106efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen Operands.reserve(NumImplicitOps + TID->getNumOperands()); 35206efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen addImplicitDefUseOperands(); 35306efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen // Make sure that we get added to a machine basicblock 35406efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen LeakDetector::addGarbageObject(this); 35506efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen MBB->push_back(this); // Add instruction to end of basic block! 35606efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen} 35706efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen 35806efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen/// MachineInstr ctor - As above, but with a DebugLoc. 359ddd7fcb887be752ec8167276a697994ad9cb9c4eChris Lattner/// 36006efc02854a96a9f92edc3bf46b0451f488cf2e6Dale JohannesenMachineInstr::MachineInstr(MachineBasicBlock *MBB, const DebugLoc dl, 361749c6f6b5ed301c84aac562e414486549d7b98ebChris Lattner const TargetInstrDesc &tid) 36206efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen : TID(&tid), NumImplicitOps(0), Parent(0), debugLoc(dl) { 363ddd7fcb887be752ec8167276a697994ad9cb9c4eChris Lattner assert(MBB && "Cannot use inserting ctor with null basic block!"); 36467f660cb080965ea93ed6d7265a67100f2fe38e4Evan Cheng if (TID->ImplicitDefs) 365349c4952009525b27383e2120a6b3c998f39bd09Chris Lattner for (const unsigned *ImpDefs = TID->getImplicitDefs(); *ImpDefs; ++ImpDefs) 366d7de496b23fca8145f777a56281457bf64e8bbadEvan Cheng NumImplicitOps++; 36767f660cb080965ea93ed6d7265a67100f2fe38e4Evan Cheng if (TID->ImplicitUses) 368349c4952009525b27383e2120a6b3c998f39bd09Chris Lattner for (const unsigned *ImpUses = TID->getImplicitUses(); *ImpUses; ++ImpUses) 369d7de496b23fca8145f777a56281457bf64e8bbadEvan Cheng NumImplicitOps++; 370349c4952009525b27383e2120a6b3c998f39bd09Chris Lattner Operands.reserve(NumImplicitOps + TID->getNumOperands()); 37167f660cb080965ea93ed6d7265a67100f2fe38e4Evan Cheng addImplicitDefUseOperands(); 3722c3f7ae3843bdc9dcfe85393e178211976c1f9bdDan Gohman // Make sure that we get added to a machine basicblock 3732c3f7ae3843bdc9dcfe85393e178211976c1f9bdDan Gohman LeakDetector::addGarbageObject(this); 374ddd7fcb887be752ec8167276a697994ad9cb9c4eChris Lattner MBB->push_back(this); // Add instruction to end of basic block! 375ddd7fcb887be752ec8167276a697994ad9cb9c4eChris Lattner} 376ddd7fcb887be752ec8167276a697994ad9cb9c4eChris Lattner 377ce22e76996d3ff0930716fa60c29df60a7e0481bMisha Brukman/// MachineInstr ctor - Copies MachineInstr arg exactly 378ce22e76996d3ff0930716fa60c29df60a7e0481bMisha Brukman/// 3791ed9922794cda9dbe295e74674b909287e544632Evan ChengMachineInstr::MachineInstr(MachineFunction &MF, const MachineInstr &MI) 38006efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen : TID(&MI.getDesc()), NumImplicitOps(0), Parent(0), 38106efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen debugLoc(MI.getDebugLoc()) { 382943b5e117fe9a087f9aa529a2632c2d32cc22374Chris Lattner Operands.reserve(MI.getNumOperands()); 383b5159ed0cb7943e5938782f7693beb18342165ceTanya Lattner 384ce22e76996d3ff0930716fa60c29df60a7e0481bMisha Brukman // Add operands 3851ed9922794cda9dbe295e74674b909287e544632Evan Cheng for (unsigned i = 0; i != MI.getNumOperands(); ++i) 3861ed9922794cda9dbe295e74674b909287e544632Evan Cheng addOperand(MI.getOperand(i)); 3871ed9922794cda9dbe295e74674b909287e544632Evan Cheng NumImplicitOps = MI.NumImplicitOps; 3880c63e03e04d3982e1913479bba404c3debc9a27eTanya Lattner 3898e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman // Add memory operands. 390fed90b6d097d50881afb45e4d79f430db66dd741Dan Gohman for (std::list<MachineMemOperand>::const_iterator i = MI.memoperands_begin(), 3918e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman j = MI.memoperands_end(); i != j; ++i) 3928e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman addMemOperand(MF, *i); 3938e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman 3948e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman // Set parent to null. 395f20c1a497fe3922ac718429d65a5fe396890575eChris Lattner Parent = 0; 3966116a73da420d9b414a34ce2599dc7f6476e23fcDan Gohman 3976116a73da420d9b414a34ce2599dc7f6476e23fcDan Gohman LeakDetector::addGarbageObject(this); 398466b534a570f574ed485d875bbca8454f68dcb52Tanya Lattner} 399466b534a570f574ed485d875bbca8454f68dcb52Tanya Lattner 400ce22e76996d3ff0930716fa60c29df60a7e0481bMisha BrukmanMachineInstr::~MachineInstr() { 4012c3f7ae3843bdc9dcfe85393e178211976c1f9bdDan Gohman LeakDetector::removeGarbageObject(this); 4028e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman assert(MemOperands.empty() && 4038e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman "MachineInstr being deleted with live memoperands!"); 404e12d6abfdfc5141b2001f0c369a0e1525315b9c0Chris Lattner#ifndef NDEBUG 40562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner for (unsigned i = 0, e = Operands.size(); i != e; ++i) { 406e12d6abfdfc5141b2001f0c369a0e1525315b9c0Chris Lattner assert(Operands[i].ParentMI == this && "ParentMI mismatch!"); 407d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman assert((!Operands[i].isReg() || !Operands[i].isOnRegUseList()) && 40862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner "Reg operand def/use list corrupted"); 40962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 410e12d6abfdfc5141b2001f0c369a0e1525315b9c0Chris Lattner#endif 411aad5c0505183a5b7913f1a443a1f0650122551ccAlkis Evlogimenos} 412aad5c0505183a5b7913f1a443a1f0650122551ccAlkis Evlogimenos 41362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// getRegInfo - If this instruction is embedded into a MachineFunction, 41462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// return the MachineRegisterInfo object for the current function, otherwise 41562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// return null. 41662ed6b9ade63bf01717ce5274fa11e93e873d245Chris LattnerMachineRegisterInfo *MachineInstr::getRegInfo() { 41762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (MachineBasicBlock *MBB = getParent()) 4184e526b9a5b36d9bac170c03df0a5d6fb76740ae2Dan Gohman return &MBB->getParent()->getRegInfo(); 41962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner return 0; 42062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner} 42162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 42262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// RemoveRegOperandsFromUseLists - Unlink all of the register operands in 42362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// this instruction from their respective use lists. This requires that the 42462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// operands already be on their use lists. 42562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattnervoid MachineInstr::RemoveRegOperandsFromUseLists() { 42662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner for (unsigned i = 0, e = Operands.size(); i != e; ++i) { 427d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (Operands[i].isReg()) 42862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands[i].RemoveRegOperandFromRegInfo(); 42962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 43062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner} 43162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 43262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// AddRegOperandsToUseLists - Add all of the register operands in 43362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// this instruction from their respective use lists. This requires that the 43462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// operands not be on their use lists yet. 43562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattnervoid MachineInstr::AddRegOperandsToUseLists(MachineRegisterInfo &RegInfo) { 43662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner for (unsigned i = 0, e = Operands.size(); i != e; ++i) { 437d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (Operands[i].isReg()) 43862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands[i].AddRegOperandToRegInfo(&RegInfo); 43962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 44062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner} 44162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 44262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 44362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// addOperand - Add the specified operand to the instruction. If it is an 44462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// implicit operand, it is added to the end of the operand list. If it is 44562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// an explicit operand it is added at the end of the explicit operand list 44662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// (before the first implicit operand). 44762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattnervoid MachineInstr::addOperand(const MachineOperand &Op) { 448d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman bool isImpReg = Op.isReg() && Op.isImplicit(); 44962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner assert((isImpReg || !OperandsComplete()) && 45062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner "Trying to add an operand to a machine instr that is already done!"); 45162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 452bcf28c08b3f0a3c4aa1be8f1485f6452d9a2b690Dan Gohman MachineRegisterInfo *RegInfo = getRegInfo(); 453bcf28c08b3f0a3c4aa1be8f1485f6452d9a2b690Dan Gohman 45462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // If we are adding the operand to the end of the list, our job is simpler. 45562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // This is true most of the time, so this is a reasonable optimization. 45662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (isImpReg || NumImplicitOps == 0) { 45762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // We can only do this optimization if we know that the operand list won't 45862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // reallocate. 45962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (Operands.empty() || Operands.size()+1 <= Operands.capacity()) { 46062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands.push_back(Op); 46162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 46262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Set the parent of the operand. 46362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands.back().ParentMI = this; 46462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 46562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // If the operand is a register, update the operand's use list. 466d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (Op.isReg()) 467bcf28c08b3f0a3c4aa1be8f1485f6452d9a2b690Dan Gohman Operands.back().AddRegOperandToRegInfo(RegInfo); 46862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner return; 46962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 47062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 47162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 47262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Otherwise, we have to insert a real operand before any implicit ones. 47362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner unsigned OpNo = Operands.size()-NumImplicitOps; 47462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 47562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // If this instruction isn't embedded into a function, then we don't need to 47662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // update any operand lists. 47762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (RegInfo == 0) { 47862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Simple insertion, no reginfo update needed for other register operands. 47962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands.insert(Operands.begin()+OpNo, Op); 48062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands[OpNo].ParentMI = this; 48162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 48262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Do explicitly set the reginfo for this operand though, to ensure the 48362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // next/prev fields are properly nulled out. 484d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (Operands[OpNo].isReg()) 48562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands[OpNo].AddRegOperandToRegInfo(0); 48662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 48762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } else if (Operands.size()+1 <= Operands.capacity()) { 48862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Otherwise, we have to remove register operands from their register use 48962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // list, add the operand, then add the register operands back to their use 49062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // list. This also must handle the case when the operand list reallocates 49162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // to somewhere else. 49262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 49362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // If insertion of this operand won't cause reallocation of the operand 49462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // list, just remove the implicit operands, add the operand, then re-add all 49562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // the rest of the operands. 49662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner for (unsigned i = OpNo, e = Operands.size(); i != e; ++i) { 497d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman assert(Operands[i].isReg() && "Should only be an implicit reg!"); 49862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands[i].RemoveRegOperandFromRegInfo(); 49962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 50062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 50162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Add the operand. If it is a register, add it to the reg list. 50262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands.insert(Operands.begin()+OpNo, Op); 50362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands[OpNo].ParentMI = this; 50462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 505d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (Operands[OpNo].isReg()) 50662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands[OpNo].AddRegOperandToRegInfo(RegInfo); 50762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 50862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Re-add all the implicit ops. 50962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner for (unsigned i = OpNo+1, e = Operands.size(); i != e; ++i) { 510d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman assert(Operands[i].isReg() && "Should only be an implicit reg!"); 51162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands[i].AddRegOperandToRegInfo(RegInfo); 51262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 51362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } else { 51462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Otherwise, we will be reallocating the operand list. Remove all reg 51562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // operands from their list, then readd them after the operand list is 51662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // reallocated. 51762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner RemoveRegOperandsFromUseLists(); 51862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 51962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands.insert(Operands.begin()+OpNo, Op); 52062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands[OpNo].ParentMI = this; 52162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 52262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Re-add all the operands. 52362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner AddRegOperandsToUseLists(*RegInfo); 52462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 52562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner} 52662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 52762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// RemoveOperand - Erase an operand from an instruction, leaving it with one 52862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// fewer operand than it started with. 52962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// 53062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattnervoid MachineInstr::RemoveOperand(unsigned OpNo) { 53162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner assert(OpNo < Operands.size() && "Invalid operand number"); 53262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 53362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Special case removing the last one. 53462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (OpNo == Operands.size()-1) { 53562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // If needed, remove from the reg def/use list. 536d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (Operands.back().isReg() && Operands.back().isOnRegUseList()) 53762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands.back().RemoveRegOperandFromRegInfo(); 53862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 53962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands.pop_back(); 54062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner return; 54162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 54262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 54362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Otherwise, we are removing an interior operand. If we have reginfo to 54462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // update, remove all operands that will be shifted down from their reg lists, 54562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // move everything down, then re-add them. 54662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner MachineRegisterInfo *RegInfo = getRegInfo(); 54762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (RegInfo) { 54862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner for (unsigned i = OpNo, e = Operands.size(); i != e; ++i) { 549d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (Operands[i].isReg()) 55062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands[i].RemoveRegOperandFromRegInfo(); 55162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 55262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 55362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 55462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands.erase(Operands.begin()+OpNo); 55562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 55662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (RegInfo) { 55762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner for (unsigned i = OpNo, e = Operands.size(); i != e; ++i) { 558d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (Operands[i].isReg()) 55962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands[i].AddRegOperandToRegInfo(RegInfo); 56062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 56162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 56262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner} 56362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 5648e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman/// addMemOperand - Add a MachineMemOperand to the machine instruction, 5658e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman/// referencing arbitrary storage. 5668e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohmanvoid MachineInstr::addMemOperand(MachineFunction &MF, 5678e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman const MachineMemOperand &MO) { 568fed90b6d097d50881afb45e4d79f430db66dd741Dan Gohman MemOperands.push_back(MO); 5698e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman} 5708e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman 5718e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman/// clearMemOperands - Erase all of this MachineInstr's MachineMemOperands. 5728e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohmanvoid MachineInstr::clearMemOperands(MachineFunction &MF) { 573fed90b6d097d50881afb45e4d79f430db66dd741Dan Gohman MemOperands.clear(); 5748e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman} 5758e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman 57662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 57748d7c069c76882475c23de153bda9483cd3c9bb4Chris Lattner/// removeFromParent - This method unlinks 'this' from the containing basic 57848d7c069c76882475c23de153bda9483cd3c9bb4Chris Lattner/// block, and returns it, but does not delete it. 57948d7c069c76882475c23de153bda9483cd3c9bb4Chris LattnerMachineInstr *MachineInstr::removeFromParent() { 58048d7c069c76882475c23de153bda9483cd3c9bb4Chris Lattner assert(getParent() && "Not embedded in a basic block!"); 58148d7c069c76882475c23de153bda9483cd3c9bb4Chris Lattner getParent()->remove(this); 58248d7c069c76882475c23de153bda9483cd3c9bb4Chris Lattner return this; 58348d7c069c76882475c23de153bda9483cd3c9bb4Chris Lattner} 58448d7c069c76882475c23de153bda9483cd3c9bb4Chris Lattner 58548d7c069c76882475c23de153bda9483cd3c9bb4Chris Lattner 5868e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman/// eraseFromParent - This method unlinks 'this' from the containing basic 5878e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman/// block, and deletes it. 5888e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohmanvoid MachineInstr::eraseFromParent() { 5898e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman assert(getParent() && "Not embedded in a basic block!"); 5908e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman getParent()->erase(this); 5918e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman} 5928e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman 5938e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman 59421326fc2ad47ee7e73a8c0b03a4a0cc0b0a0c4e8Brian Gaeke/// OperandComplete - Return true if it's illegal to add a new operand 59521326fc2ad47ee7e73a8c0b03a4a0cc0b0a0c4e8Brian Gaeke/// 5962a90ba60175f93e7438165d8423100aa573c16c5Chris Lattnerbool MachineInstr::OperandsComplete() const { 597349c4952009525b27383e2120a6b3c998f39bd09Chris Lattner unsigned short NumOperands = TID->getNumOperands(); 5988f707e15fbd09ca948b86419bcb0c92470827ac9Chris Lattner if (!TID->isVariadic() && getNumOperands()-NumImplicitOps >= NumOperands) 5993497782f3843007de3be0c43e3ff206a01e2ccacVikram S. Adve return true; // Broken: we have all the operands of this instruction! 600413746e9833d97a8b463ef6a788aa326cf3829a2Chris Lattner return false; 60170bc4b5d1a3795a8f41be96723cfcbccac8e1671Vikram S. Adve} 60270bc4b5d1a3795a8f41be96723cfcbccac8e1671Vikram S. Adve 60319e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng/// getNumExplicitOperands - Returns the number of non-implicit operands. 60419e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng/// 60519e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Chengunsigned MachineInstr::getNumExplicitOperands() const { 606349c4952009525b27383e2120a6b3c998f39bd09Chris Lattner unsigned NumOperands = TID->getNumOperands(); 6078f707e15fbd09ca948b86419bcb0c92470827ac9Chris Lattner if (!TID->isVariadic()) 60819e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng return NumOperands; 60919e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng 61019e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng for (unsigned e = getNumOperands(); NumOperands != e; ++NumOperands) { 61119e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng const MachineOperand &MO = getOperand(NumOperands); 612d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (!MO.isReg() || !MO.isImplicit()) 61319e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng NumOperands++; 61419e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng } 61519e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng return NumOperands; 61619e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng} 61719e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng 6188ace2cd034be10c09be51daf08c3dda327f54262Chris Lattner 6194406604047423576e36657c7ede266ca42e79642Dan Gohman/// isLabel - Returns true if the MachineInstr represents a label. 6204406604047423576e36657c7ede266ca42e79642Dan Gohman/// 6214406604047423576e36657c7ede266ca42e79642Dan Gohmanbool MachineInstr::isLabel() const { 6224406604047423576e36657c7ede266ca42e79642Dan Gohman return getOpcode() == TargetInstrInfo::DBG_LABEL || 6234406604047423576e36657c7ede266ca42e79642Dan Gohman getOpcode() == TargetInstrInfo::EH_LABEL || 6244406604047423576e36657c7ede266ca42e79642Dan Gohman getOpcode() == TargetInstrInfo::GC_LABEL; 6254406604047423576e36657c7ede266ca42e79642Dan Gohman} 6264406604047423576e36657c7ede266ca42e79642Dan Gohman 627bb81d97feb396a8bb21d074db1c57e9f66525f40Evan Cheng/// isDebugLabel - Returns true if the MachineInstr represents a debug label. 628bb81d97feb396a8bb21d074db1c57e9f66525f40Evan Cheng/// 629bb81d97feb396a8bb21d074db1c57e9f66525f40Evan Chengbool MachineInstr::isDebugLabel() const { 6304406604047423576e36657c7ede266ca42e79642Dan Gohman return getOpcode() == TargetInstrInfo::DBG_LABEL; 631bb81d97feb396a8bb21d074db1c57e9f66525f40Evan Cheng} 632bb81d97feb396a8bb21d074db1c57e9f66525f40Evan Cheng 633faa510726f4b40aa4495e60e4d341c6467e3fb01Evan Cheng/// findRegisterUseOperandIdx() - Returns the MachineOperand that is a use of 63432eb1f1ca4220d2f24916e587ad7e8574d7d82a1Evan Cheng/// the specific register or -1 if it is not found. It further tightening 63576d7e76c15c258ec4a71fd75a2a32bca3a5e5e27Evan Cheng/// the search criteria to a use that kills the register if isKill is true. 6366130f66eaae89f8878590796977678afa8448926Evan Chengint MachineInstr::findRegisterUseOperandIdx(unsigned Reg, bool isKill, 6376130f66eaae89f8878590796977678afa8448926Evan Cheng const TargetRegisterInfo *TRI) const { 638576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 639f277ee4be7edabb759a7f78138b693d72d0c263fEvan Cheng const MachineOperand &MO = getOperand(i); 640d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (!MO.isReg() || !MO.isUse()) 6416130f66eaae89f8878590796977678afa8448926Evan Cheng continue; 6426130f66eaae89f8878590796977678afa8448926Evan Cheng unsigned MOReg = MO.getReg(); 6436130f66eaae89f8878590796977678afa8448926Evan Cheng if (!MOReg) 6446130f66eaae89f8878590796977678afa8448926Evan Cheng continue; 6456130f66eaae89f8878590796977678afa8448926Evan Cheng if (MOReg == Reg || 6466130f66eaae89f8878590796977678afa8448926Evan Cheng (TRI && 6476130f66eaae89f8878590796977678afa8448926Evan Cheng TargetRegisterInfo::isPhysicalRegister(MOReg) && 6486130f66eaae89f8878590796977678afa8448926Evan Cheng TargetRegisterInfo::isPhysicalRegister(Reg) && 6496130f66eaae89f8878590796977678afa8448926Evan Cheng TRI->isSubRegister(MOReg, Reg))) 65076d7e76c15c258ec4a71fd75a2a32bca3a5e5e27Evan Cheng if (!isKill || MO.isKill()) 65132eb1f1ca4220d2f24916e587ad7e8574d7d82a1Evan Cheng return i; 652b371f457b0ea4a652a9f526ba4375c80ae542252Evan Cheng } 65332eb1f1ca4220d2f24916e587ad7e8574d7d82a1Evan Cheng return -1; 654b371f457b0ea4a652a9f526ba4375c80ae542252Evan Cheng} 655b371f457b0ea4a652a9f526ba4375c80ae542252Evan Cheng 6566130f66eaae89f8878590796977678afa8448926Evan Cheng/// findRegisterDefOperandIdx() - Returns the operand index that is a def of 657703bfe69092e8da79fbef2fc5ca07b805ad9f753Dan Gohman/// the specified register or -1 if it is not found. If isDead is true, defs 658703bfe69092e8da79fbef2fc5ca07b805ad9f753Dan Gohman/// that are not dead are skipped. If TargetRegisterInfo is non-null, then it 659703bfe69092e8da79fbef2fc5ca07b805ad9f753Dan Gohman/// also checks if there is a def of a super-register. 6606130f66eaae89f8878590796977678afa8448926Evan Chengint MachineInstr::findRegisterDefOperandIdx(unsigned Reg, bool isDead, 6616130f66eaae89f8878590796977678afa8448926Evan Cheng const TargetRegisterInfo *TRI) const { 662b371f457b0ea4a652a9f526ba4375c80ae542252Evan Cheng for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 6636130f66eaae89f8878590796977678afa8448926Evan Cheng const MachineOperand &MO = getOperand(i); 664d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (!MO.isReg() || !MO.isDef()) 6656130f66eaae89f8878590796977678afa8448926Evan Cheng continue; 6666130f66eaae89f8878590796977678afa8448926Evan Cheng unsigned MOReg = MO.getReg(); 6676130f66eaae89f8878590796977678afa8448926Evan Cheng if (MOReg == Reg || 6686130f66eaae89f8878590796977678afa8448926Evan Cheng (TRI && 6696130f66eaae89f8878590796977678afa8448926Evan Cheng TargetRegisterInfo::isPhysicalRegister(MOReg) && 6706130f66eaae89f8878590796977678afa8448926Evan Cheng TargetRegisterInfo::isPhysicalRegister(Reg) && 6716130f66eaae89f8878590796977678afa8448926Evan Cheng TRI->isSubRegister(MOReg, Reg))) 6726130f66eaae89f8878590796977678afa8448926Evan Cheng if (!isDead || MO.isDead()) 6736130f66eaae89f8878590796977678afa8448926Evan Cheng return i; 674576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng } 6756130f66eaae89f8878590796977678afa8448926Evan Cheng return -1; 676576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng} 67719e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng 678f277ee4be7edabb759a7f78138b693d72d0c263fEvan Cheng/// findFirstPredOperandIdx() - Find the index of the first operand in the 679f277ee4be7edabb759a7f78138b693d72d0c263fEvan Cheng/// operand list that is used to represent the predicate. It returns -1 if 680f277ee4be7edabb759a7f78138b693d72d0c263fEvan Cheng/// none is found. 681f277ee4be7edabb759a7f78138b693d72d0c263fEvan Chengint MachineInstr::findFirstPredOperandIdx() const { 682749c6f6b5ed301c84aac562e414486549d7b98ebChris Lattner const TargetInstrDesc &TID = getDesc(); 683749c6f6b5ed301c84aac562e414486549d7b98ebChris Lattner if (TID.isPredicable()) { 68419e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng for (unsigned i = 0, e = getNumOperands(); i != e; ++i) 685749c6f6b5ed301c84aac562e414486549d7b98ebChris Lattner if (TID.OpInfo[i].isPredicate()) 686f277ee4be7edabb759a7f78138b693d72d0c263fEvan Cheng return i; 68719e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng } 68819e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng 689f277ee4be7edabb759a7f78138b693d72d0c263fEvan Cheng return -1; 69019e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng} 691576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng 692a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng/// isRegReDefinedByTwoAddr - Given the index of a register operand, 693ef0732d25a9882c947984ae3f2afbef5463ba00fEvan Cheng/// check if the register def is a re-definition due to two addr elimination. 6942ce7f2068f13566f5a70ee779e3bb83a6cb8d942Dan Gohmanbool MachineInstr::isRegReDefinedByTwoAddr(unsigned DefIdx) const{ 6952ce7f2068f13566f5a70ee779e3bb83a6cb8d942Dan Gohman assert(getOperand(DefIdx).isDef() && "DefIdx is not a def!"); 696749c6f6b5ed301c84aac562e414486549d7b98ebChris Lattner const TargetInstrDesc &TID = getDesc(); 697ef0732d25a9882c947984ae3f2afbef5463ba00fEvan Cheng for (unsigned i = 0, e = TID.getNumOperands(); i != e; ++i) { 698ef0732d25a9882c947984ae3f2afbef5463ba00fEvan Cheng const MachineOperand &MO = getOperand(i); 6992ce7f2068f13566f5a70ee779e3bb83a6cb8d942Dan Gohman if (MO.isReg() && MO.isUse() && 700ef0732d25a9882c947984ae3f2afbef5463ba00fEvan Cheng TID.getOperandConstraint(i, TOI::TIED_TO) == (int)DefIdx) 701ef0732d25a9882c947984ae3f2afbef5463ba00fEvan Cheng return true; 70232dfbeada7292167bb488f36a71a5a6a519ddaffEvan Cheng } 70332dfbeada7292167bb488f36a71a5a6a519ddaffEvan Cheng return false; 70432dfbeada7292167bb488f36a71a5a6a519ddaffEvan Cheng} 70532dfbeada7292167bb488f36a71a5a6a519ddaffEvan Cheng 706a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng/// isRegTiedToDefOperand - Return true if the operand of the specified index 707a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng/// is a register use and it is tied to an def operand. It also returns the def 708a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng/// operand index by reference. 709a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Chengbool MachineInstr::isRegTiedToDefOperand(unsigned UseOpIdx, unsigned *DefOpIdx){ 710a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng const TargetInstrDesc &TID = getDesc(); 711a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng if (UseOpIdx >= TID.getNumOperands()) 712a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng return false; 713a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng const MachineOperand &MO = getOperand(UseOpIdx); 714a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng if (!MO.isReg() || !MO.isUse()) 715a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng return false; 716a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng int DefIdx = TID.getOperandConstraint(UseOpIdx, TOI::TIED_TO); 717a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng if (DefIdx == -1) 718a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng return false; 719a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng if (DefOpIdx) 720a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng *DefOpIdx = (unsigned)DefIdx; 721a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng return true; 722a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng} 723a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng 724576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng/// copyKillDeadInfo - Copies kill / dead operand properties from MI. 725576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng/// 726576d123e130a8291669dd2384a3735cc4933fd00Evan Chengvoid MachineInstr::copyKillDeadInfo(const MachineInstr *MI) { 727576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng for (unsigned i = 0, e = MI->getNumOperands(); i != e; ++i) { 728576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng const MachineOperand &MO = MI->getOperand(i); 729d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (!MO.isReg() || (!MO.isKill() && !MO.isDead())) 730576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng continue; 731576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng for (unsigned j = 0, ee = getNumOperands(); j != ee; ++j) { 732576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng MachineOperand &MOp = getOperand(j); 733576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng if (!MOp.isIdenticalTo(MO)) 734576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng continue; 735576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng if (MO.isKill()) 736576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng MOp.setIsKill(); 737576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng else 738576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng MOp.setIsDead(); 739576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng break; 740576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng } 741576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng } 742576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng} 743576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng 74419e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng/// copyPredicates - Copies predicate operand(s) from MI. 74519e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Chengvoid MachineInstr::copyPredicates(const MachineInstr *MI) { 746749c6f6b5ed301c84aac562e414486549d7b98ebChris Lattner const TargetInstrDesc &TID = MI->getDesc(); 747b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng if (!TID.isPredicable()) 748b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng return; 749b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng for (unsigned i = 0, e = MI->getNumOperands(); i != e; ++i) { 750b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng if (TID.OpInfo[i].isPredicate()) { 751b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng // Predicated operands must be last operands. 752b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng addOperand(MI->getOperand(i)); 75319e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng } 75419e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng } 75519e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng} 75619e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng 7579f1c8317a4676945b4961ddb9827ef2412551620Evan Cheng/// isSafeToMove - Return true if it is safe to move this instruction. If 7589f1c8317a4676945b4961ddb9827ef2412551620Evan Cheng/// SawStore is set to true, it means that there is a store (or call) between 7599f1c8317a4676945b4961ddb9827ef2412551620Evan Cheng/// the instruction's location and its intended destination. 760b3b930a011554fc7566dd4311af3862b01e5fd8fDan Gohmanbool MachineInstr::isSafeToMove(const TargetInstrInfo *TII, 761b3b930a011554fc7566dd4311af3862b01e5fd8fDan Gohman bool &SawStore) const { 762b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng // Ignore stuff that we obviously can't move. 763b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng if (TID->mayStore() || TID->isCall()) { 764b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng SawStore = true; 765b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng return false; 766b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng } 767237dee125997dcaf16e391878465162cc680c0faDan Gohman if (TID->isTerminator() || TID->hasUnmodeledSideEffects()) 768b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng return false; 769b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng 770b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng // See if this instruction does a load. If so, we have to guarantee that the 771b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng // loaded value doesn't change between the load and the its intended 772b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng // destination. The check for isInvariantLoad gives the targe the chance to 773b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng // classify the load as always returning a constant, e.g. a constant pool 774b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng // load. 7753e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman if (TID->mayLoad() && !TII->isInvariantLoad(this)) 776b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng // Otherwise, this is a real load. If there is a store between the load and 7773e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman // end of block, or if the laod is volatile, we can't move it. 778d790a5ceee7138d8a5352432ccf862a42e3f5819Dan Gohman return !SawStore && !hasVolatileMemoryRef(); 7793e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman 780b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng return true; 781b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng} 782b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng 783df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng/// isSafeToReMat - Return true if it's safe to rematerialize the specified 784df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng/// instruction which defined the specified register instead of copying it. 785b3b930a011554fc7566dd4311af3862b01e5fd8fDan Gohmanbool MachineInstr::isSafeToReMat(const TargetInstrInfo *TII, 786b3b930a011554fc7566dd4311af3862b01e5fd8fDan Gohman unsigned DstReg) const { 787df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng bool SawStore = false; 7883689ff450ae2d72aadf48c70f499e4368684d1e3Evan Cheng if (!getDesc().isRematerializable() || 7893689ff450ae2d72aadf48c70f499e4368684d1e3Evan Cheng !TII->isTriviallyReMaterializable(this) || 7903689ff450ae2d72aadf48c70f499e4368684d1e3Evan Cheng !isSafeToMove(TII, SawStore)) 791df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng return false; 792df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 793cbad42cfd1cc93a41ff26ea2e8895bfbc09f54f2Dan Gohman const MachineOperand &MO = getOperand(i); 794d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (!MO.isReg()) 795df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng continue; 796df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng // FIXME: For now, do not remat any instruction with register operands. 797df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng // Later on, we can loosen the restriction is the register operands have 798df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng // not been modified between the def and use. Note, this is different from 7998763c1c54413c9cd0b56e2860edb5856151a69fcEvan Cheng // MachineSink because the code is no longer in two-address form (at least 800df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng // partially). 801df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng if (MO.isUse()) 802df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng return false; 803df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng else if (!MO.isDead() && MO.getReg() != DstReg) 804df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng return false; 805df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng } 806df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng return true; 807df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng} 808df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng 8093e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman/// hasVolatileMemoryRef - Return true if this instruction may have a 8103e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman/// volatile memory reference, or if the information describing the 8113e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman/// memory reference is not available. Return false if it is known to 8123e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman/// have no volatile memory references. 8133e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohmanbool MachineInstr::hasVolatileMemoryRef() const { 8143e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman // An instruction known never to access memory won't have a volatile access. 8153e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman if (!TID->mayStore() && 8163e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman !TID->mayLoad() && 8173e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman !TID->isCall() && 8183e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman !TID->hasUnmodeledSideEffects()) 8193e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman return false; 8203e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman 8213e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman // Otherwise, if the instruction has no memory reference information, 8223e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman // conservatively assume it wasn't preserved. 8233e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman if (memoperands_empty()) 8243e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman return true; 8253e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman 8263e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman // Check the memory reference information for volatile references. 8273e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman for (std::list<MachineMemOperand>::const_iterator I = memoperands_begin(), 8283e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman E = memoperands_end(); I != E; ++I) 8293e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman if (I->isVolatile()) 8303e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman return true; 8313e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman 8323e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman return false; 8333e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman} 8343e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman 83521326fc2ad47ee7e73a8c0b03a4a0cc0b0a0c4e8Brian Gaekevoid MachineInstr::dump() const { 836e81561909d128c6e2d8033cb5465a49b2596b26aBill Wendling cerr << " " << *this; 83770bc4b5d1a3795a8f41be96723cfcbccac8e1671Vikram S. Adve} 83870bc4b5d1a3795a8f41be96723cfcbccac8e1671Vikram S. Adve 839b140762a45d21aaed054f15adaff0fc2274d939dTanya Lattnervoid MachineInstr::print(std::ostream &OS, const TargetMachine *TM) const { 8405ca6bd14a00ba5310ce1a632d3a0cc8f8af31433Mon P Wang raw_os_ostream RawOS(OS); 8415ca6bd14a00ba5310ce1a632d3a0cc8f8af31433Mon P Wang print(RawOS, TM); 8425ca6bd14a00ba5310ce1a632d3a0cc8f8af31433Mon P Wang} 8435ca6bd14a00ba5310ce1a632d3a0cc8f8af31433Mon P Wang 8445ca6bd14a00ba5310ce1a632d3a0cc8f8af31433Mon P Wangvoid MachineInstr::print(raw_ostream &OS, const TargetMachine *TM) const { 845e3087890ac7f2fcf4697f8e09091e9a384311b9cChris Lattner // Specialize printing if op#0 is definition 8466a592271fb2946a0704b06fd66199987cdd40b3cChris Lattner unsigned StartOp = 0; 847d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (getNumOperands() && getOperand(0).isReg() && getOperand(0).isDef()) { 848f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner getOperand(0).print(OS, TM); 8496a592271fb2946a0704b06fd66199987cdd40b3cChris Lattner OS << " = "; 8506a592271fb2946a0704b06fd66199987cdd40b3cChris Lattner ++StartOp; // Don't print this operand again! 8516a592271fb2946a0704b06fd66199987cdd40b3cChris Lattner } 852b140762a45d21aaed054f15adaff0fc2274d939dTanya Lattner 853749c6f6b5ed301c84aac562e414486549d7b98ebChris Lattner OS << getDesc().getName(); 854edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 8556a592271fb2946a0704b06fd66199987cdd40b3cChris Lattner for (unsigned i = StartOp, e = getNumOperands(); i != e; ++i) { 8566a592271fb2946a0704b06fd66199987cdd40b3cChris Lattner if (i != StartOp) 8576a592271fb2946a0704b06fd66199987cdd40b3cChris Lattner OS << ","; 8586a592271fb2946a0704b06fd66199987cdd40b3cChris Lattner OS << " "; 859f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner getOperand(i).print(OS, TM); 8601049164aa6b06d91d9b3b557a9a213eaf3f6319aChris Lattner } 861edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 8628e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman if (!memoperands_empty()) { 8632bfe6ff605f07e8f50874b1326227efc8bb8ed3dDan Gohman OS << ", Mem:"; 864fed90b6d097d50881afb45e4d79f430db66dd741Dan Gohman for (std::list<MachineMemOperand>::const_iterator i = memoperands_begin(), 8658e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman e = memoperands_end(); i != e; ++i) { 8668e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman const MachineMemOperand &MRO = *i; 86769de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman const Value *V = MRO.getValue(); 86869de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman 86969de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman assert((MRO.isLoad() || MRO.isStore()) && 87069de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman "SV has to be a load, store or both."); 87169de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman 87269de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman if (MRO.isVolatile()) 87369de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman OS << "Volatile "; 8742bfe6ff605f07e8f50874b1326227efc8bb8ed3dDan Gohman 87569de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman if (MRO.isLoad()) 8762bfe6ff605f07e8f50874b1326227efc8bb8ed3dDan Gohman OS << "LD"; 87769de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman if (MRO.isStore()) 8782bfe6ff605f07e8f50874b1326227efc8bb8ed3dDan Gohman OS << "ST"; 87969de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman 880bbd8322daaefa70ba1a282956df5f977e783524bEvan Cheng OS << "(" << MRO.getSize() << "," << MRO.getAlignment() << ") ["; 88169de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman 8822bfe6ff605f07e8f50874b1326227efc8bb8ed3dDan Gohman if (!V) 8832bfe6ff605f07e8f50874b1326227efc8bb8ed3dDan Gohman OS << "<unknown>"; 8842bfe6ff605f07e8f50874b1326227efc8bb8ed3dDan Gohman else if (!V->getName().empty()) 8852bfe6ff605f07e8f50874b1326227efc8bb8ed3dDan Gohman OS << V->getName(); 886edfb72c6288118ab9c900a560ded89dfaa107296Chris Lattner else if (const PseudoSourceValue *PSV = dyn_cast<PseudoSourceValue>(V)) { 8875ca6bd14a00ba5310ce1a632d3a0cc8f8af31433Mon P Wang PSV->print(OS); 888edfb72c6288118ab9c900a560ded89dfaa107296Chris Lattner } else 8892bfe6ff605f07e8f50874b1326227efc8bb8ed3dDan Gohman OS << V; 8902bfe6ff605f07e8f50874b1326227efc8bb8ed3dDan Gohman 8912bfe6ff605f07e8f50874b1326227efc8bb8ed3dDan Gohman OS << " + " << MRO.getOffset() << "]"; 89269de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman } 89369de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman } 89469de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman 895b5ef27375731ece13a8ae0102b3f3233351036afBill Wendling if (!debugLoc.isUnknown()) { 896b5ef27375731ece13a8ae0102b3f3233351036afBill Wendling const MachineFunction *MF = getParent()->getParent(); 897b5ef27375731ece13a8ae0102b3f3233351036afBill Wendling DebugLocTuple DLT = MF->getDebugLocTuple(debugLoc); 898b5ef27375731ece13a8ae0102b3f3233351036afBill Wendling OS << " [dbg: " 899b5ef27375731ece13a8ae0102b3f3233351036afBill Wendling << DLT.Src << "," 900b5ef27375731ece13a8ae0102b3f3233351036afBill Wendling << DLT.Line << "," 901b5ef27375731ece13a8ae0102b3f3233351036afBill Wendling << DLT.Col << "]"; 902b5ef27375731ece13a8ae0102b3f3233351036afBill Wendling } 903b5ef27375731ece13a8ae0102b3f3233351036afBill Wendling 9041049164aa6b06d91d9b3b557a9a213eaf3f6319aChris Lattner OS << "\n"; 9051049164aa6b06d91d9b3b557a9a213eaf3f6319aChris Lattner} 9061049164aa6b06d91d9b3b557a9a213eaf3f6319aChris Lattner 907b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Andersonbool MachineInstr::addRegisterKilled(unsigned IncomingReg, 9086f0d024a534af18d9e60b3ea757376cd8a3a980eDan Gohman const TargetRegisterInfo *RegInfo, 909b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson bool AddIfNotFound) { 9109b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng bool isPhysReg = TargetRegisterInfo::isPhysicalRegister(IncomingReg); 9112ebc11ac6d19ec806da97bd4f2d49a27932d09fbDan Gohman bool hasAliases = isPhysReg && RegInfo->getAliasSet(IncomingReg); 9123f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman bool Found = false; 9139b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng SmallVector<unsigned,4> DeadOps; 9144a23d72ec21d1bdfda69fd16c9fc10cec39f1fedBill Wendling for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 9154a23d72ec21d1bdfda69fd16c9fc10cec39f1fedBill Wendling MachineOperand &MO = getOperand(i); 916d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (!MO.isReg() || !MO.isUse()) 9179b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng continue; 9189b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng unsigned Reg = MO.getReg(); 9199b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng if (!Reg) 9209b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng continue; 9214a23d72ec21d1bdfda69fd16c9fc10cec39f1fedBill Wendling 9229b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng if (Reg == IncomingReg) { 9233f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman if (!Found) { 9243f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman if (MO.isKill()) 9253f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman // The register is already marked kill. 9263f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman return true; 9273f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman MO.setIsKill(); 9283f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman Found = true; 9293f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman } 9303f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman } else if (hasAliases && MO.isKill() && 9313f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman TargetRegisterInfo::isPhysicalRegister(Reg)) { 9329b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng // A super-register kill already exists. 9339b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng if (RegInfo->isSuperRegister(IncomingReg, Reg)) 9342ebc11ac6d19ec806da97bd4f2d49a27932d09fbDan Gohman return true; 9352ebc11ac6d19ec806da97bd4f2d49a27932d09fbDan Gohman if (RegInfo->isSubRegister(IncomingReg, Reg)) 9369b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng DeadOps.push_back(i); 937b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson } 938b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson } 939b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson 9409b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng // Trim unneeded kill operands. 9419b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng while (!DeadOps.empty()) { 9429b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng unsigned OpIdx = DeadOps.back(); 9439b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng if (getOperand(OpIdx).isImplicit()) 9449b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng RemoveOperand(OpIdx); 9459b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng else 9469b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng getOperand(OpIdx).setIsKill(false); 9479b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng DeadOps.pop_back(); 9489b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng } 9499b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng 9504a23d72ec21d1bdfda69fd16c9fc10cec39f1fedBill Wendling // If not found, this means an alias of one of the operands is killed. Add a 951b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson // new implicit operand if required. 9523f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman if (!Found && AddIfNotFound) { 9534a23d72ec21d1bdfda69fd16c9fc10cec39f1fedBill Wendling addOperand(MachineOperand::CreateReg(IncomingReg, 9544a23d72ec21d1bdfda69fd16c9fc10cec39f1fedBill Wendling false /*IsDef*/, 9554a23d72ec21d1bdfda69fd16c9fc10cec39f1fedBill Wendling true /*IsImp*/, 9564a23d72ec21d1bdfda69fd16c9fc10cec39f1fedBill Wendling true /*IsKill*/)); 957b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson return true; 958b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson } 9593f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman return Found; 960b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson} 961b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson 962b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Andersonbool MachineInstr::addRegisterDead(unsigned IncomingReg, 9636f0d024a534af18d9e60b3ea757376cd8a3a980eDan Gohman const TargetRegisterInfo *RegInfo, 964b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson bool AddIfNotFound) { 9659b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng bool isPhysReg = TargetRegisterInfo::isPhysicalRegister(IncomingReg); 96601b2e236b571e7c22ee8493b7ea19eda9830d75cEvan Cheng bool hasAliases = isPhysReg && RegInfo->getAliasSet(IncomingReg); 9673f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman bool Found = false; 9689b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng SmallVector<unsigned,4> DeadOps; 969b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 970b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson MachineOperand &MO = getOperand(i); 971d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (!MO.isReg() || !MO.isDef()) 9729b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng continue; 9739b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng unsigned Reg = MO.getReg(); 9743f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman if (!Reg) 9753f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman continue; 9763f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman 9779b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng if (Reg == IncomingReg) { 9783f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman if (!Found) { 9793f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman if (MO.isDead()) 9803f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman // The register is already marked dead. 9813f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman return true; 9823f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman MO.setIsDead(); 9833f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman Found = true; 9843f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman } 9853f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman } else if (hasAliases && MO.isDead() && 9863f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman TargetRegisterInfo::isPhysicalRegister(Reg)) { 9879b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng // There exists a super-register that's marked dead. 9889b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng if (RegInfo->isSuperRegister(IncomingReg, Reg)) 9892ebc11ac6d19ec806da97bd4f2d49a27932d09fbDan Gohman return true; 99022ae99908258dd5631fde7128a94c418ed08eae5Owen Anderson if (RegInfo->getSubRegisters(IncomingReg) && 99122ae99908258dd5631fde7128a94c418ed08eae5Owen Anderson RegInfo->getSuperRegisters(Reg) && 99222ae99908258dd5631fde7128a94c418ed08eae5Owen Anderson RegInfo->isSubRegister(IncomingReg, Reg)) 9939b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng DeadOps.push_back(i); 994b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson } 995b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson } 996b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson 9979b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng // Trim unneeded dead operands. 9989b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng while (!DeadOps.empty()) { 9999b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng unsigned OpIdx = DeadOps.back(); 10009b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng if (getOperand(OpIdx).isImplicit()) 10019b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng RemoveOperand(OpIdx); 10029b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng else 10039b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng getOperand(OpIdx).setIsDead(false); 10049b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng DeadOps.pop_back(); 10059b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng } 10069b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng 10073f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman // If not found, this means an alias of one of the operands is dead. Add a 10083f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman // new implicit operand if required. 10093f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman if (!Found && AddIfNotFound) { 10103f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman addOperand(MachineOperand::CreateReg(IncomingReg, 10113f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman true /*IsDef*/, 10123f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman true /*IsImp*/, 10133f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman false /*IsKill*/, 10143f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman true /*IsDead*/)); 1015b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson return true; 1016b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson } 10173f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman return Found; 1018b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson} 1019