MachineInstr.cpp revision 28f02fdd76f4efc05d14649e0eec90ce8e71e17e
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" 15fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng#include "llvm/Constants.h" 16fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng#include "llvm/InlineAsm.h" 1784bc5427d6883f73cfeae3da640acd011d35c006Chris Lattner#include "llvm/Value.h" 188517e1f0beea9b5e47974f083396d53294c390adChris Lattner#include "llvm/CodeGen/MachineFunction.h" 1962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner#include "llvm/CodeGen/MachineRegisterInfo.h" 2069de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman#include "llvm/CodeGen/PseudoSourceValue.h" 211049164aa6b06d91d9b3b557a9a213eaf3f6319aChris Lattner#include "llvm/Target/TargetMachine.h" 22bb81d97feb396a8bb21d074db1c57e9f66525f40Evan Cheng#include "llvm/Target/TargetInstrInfo.h" 23f14cf85e334ff03bbdd23e473f14ffa4fb025e94Chris Lattner#include "llvm/Target/TargetInstrDesc.h" 246f0d024a534af18d9e60b3ea757376cd8a3a980eDan Gohman#include "llvm/Target/TargetRegisterInfo.h" 25a26eae64ddf607549f9e47046d46ea5b9ec648b4Argyrios Kyrtzidis#include "llvm/Analysis/DebugInfo.h" 26c25e7581b9b8088910da31702d4ca21c4734c6d7Torok Edwin#include "llvm/Support/ErrorHandling.h" 272c3f7ae3843bdc9dcfe85393e178211976c1f9bdDan Gohman#include "llvm/Support/LeakDetector.h" 28ce42e404a26454f4332c2c350c75ad27bbbb16f7Dan Gohman#include "llvm/Support/MathExtras.h" 29edfb72c6288118ab9c900a560ded89dfaa107296Chris Lattner#include "llvm/Support/raw_ostream.h" 30b8d2f550b84523e8a73198f98e5d450ec3b4fee7Dan Gohman#include "llvm/ADT/FoldingSet.h" 310742b59913a7760eb26f08121cd244a37e83e3b3Chris Lattnerusing namespace llvm; 32d0fde30ce850b78371fd1386338350591f9ff494Brian Gaeke 33f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner//===----------------------------------------------------------------------===// 34f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner// MachineOperand Implementation 35f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner//===----------------------------------------------------------------------===// 36f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner 3762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// AddRegOperandToRegInfo - Add this register operand to the specified 3862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// MachineRegisterInfo. If it is null, then the next/prev fields should be 3962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// explicitly nulled out. 4062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattnervoid MachineOperand::AddRegOperandToRegInfo(MachineRegisterInfo *RegInfo) { 41d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman assert(isReg() && "Can only add reg operand to use lists"); 4262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 4362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // If the reginfo pointer is null, just explicitly null out or next/prev 4462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // pointers, to ensure they are not garbage. 4562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (RegInfo == 0) { 4662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Contents.Reg.Prev = 0; 4762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Contents.Reg.Next = 0; 4862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner return; 4962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 5062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 5162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Otherwise, add this operand to the head of the registers use/def list. 5280fe5311b5e9e5c4642ff46ba2377173c17797f6Chris Lattner MachineOperand **Head = &RegInfo->getRegUseDefListHead(getReg()); 5362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 5480fe5311b5e9e5c4642ff46ba2377173c17797f6Chris Lattner // For SSA values, we prefer to keep the definition at the start of the list. 5580fe5311b5e9e5c4642ff46ba2377173c17797f6Chris Lattner // we do this by skipping over the definition if it is at the head of the 5680fe5311b5e9e5c4642ff46ba2377173c17797f6Chris Lattner // list. 5780fe5311b5e9e5c4642ff46ba2377173c17797f6Chris Lattner if (*Head && (*Head)->isDef()) 5880fe5311b5e9e5c4642ff46ba2377173c17797f6Chris Lattner Head = &(*Head)->Contents.Reg.Next; 5980fe5311b5e9e5c4642ff46ba2377173c17797f6Chris Lattner 6080fe5311b5e9e5c4642ff46ba2377173c17797f6Chris Lattner Contents.Reg.Next = *Head; 6162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (Contents.Reg.Next) { 6262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner assert(getReg() == Contents.Reg.Next->getReg() && 6362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner "Different regs on the same list!"); 6462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Contents.Reg.Next->Contents.Reg.Prev = &Contents.Reg.Next; 6562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 6662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 6780fe5311b5e9e5c4642ff46ba2377173c17797f6Chris Lattner Contents.Reg.Prev = Head; 6880fe5311b5e9e5c4642ff46ba2377173c17797f6Chris Lattner *Head = this; 6962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner} 7062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 713bc1a3735f216f4a122fe4a05d39f63888ab205aDan Gohman/// RemoveRegOperandFromRegInfo - Remove this register operand from the 723bc1a3735f216f4a122fe4a05d39f63888ab205aDan Gohman/// MachineRegisterInfo it is linked with. 733bc1a3735f216f4a122fe4a05d39f63888ab205aDan Gohmanvoid MachineOperand::RemoveRegOperandFromRegInfo() { 743bc1a3735f216f4a122fe4a05d39f63888ab205aDan Gohman assert(isOnRegUseList() && "Reg operand is not on a use list"); 753bc1a3735f216f4a122fe4a05d39f63888ab205aDan Gohman // Unlink this from the doubly linked list of operands. 763bc1a3735f216f4a122fe4a05d39f63888ab205aDan Gohman MachineOperand *NextOp = Contents.Reg.Next; 773bc1a3735f216f4a122fe4a05d39f63888ab205aDan Gohman *Contents.Reg.Prev = NextOp; 783bc1a3735f216f4a122fe4a05d39f63888ab205aDan Gohman if (NextOp) { 793bc1a3735f216f4a122fe4a05d39f63888ab205aDan Gohman assert(NextOp->getReg() == getReg() && "Corrupt reg use/def chain!"); 803bc1a3735f216f4a122fe4a05d39f63888ab205aDan Gohman NextOp->Contents.Reg.Prev = Contents.Reg.Prev; 813bc1a3735f216f4a122fe4a05d39f63888ab205aDan Gohman } 823bc1a3735f216f4a122fe4a05d39f63888ab205aDan Gohman Contents.Reg.Prev = 0; 833bc1a3735f216f4a122fe4a05d39f63888ab205aDan Gohman Contents.Reg.Next = 0; 843bc1a3735f216f4a122fe4a05d39f63888ab205aDan Gohman} 853bc1a3735f216f4a122fe4a05d39f63888ab205aDan Gohman 8662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattnervoid MachineOperand::setReg(unsigned Reg) { 8762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (getReg() == Reg) return; // No change. 8862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 8962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Otherwise, we have to change the register. If this operand is embedded 9062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // into a machine function, we need to update the old and new register's 9162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // use/def lists. 9262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (MachineInstr *MI = getParent()) 9362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (MachineBasicBlock *MBB = MI->getParent()) 9462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (MachineFunction *MF = MBB->getParent()) { 9562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner RemoveRegOperandFromRegInfo(); 9662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Contents.Reg.RegNo = Reg; 9762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner AddRegOperandToRegInfo(&MF->getRegInfo()); 9862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner return; 9962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 10062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 10162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Otherwise, just change the register, no problem. :) 10262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Contents.Reg.RegNo = Reg; 10362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner} 10462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 10562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// ChangeToImmediate - Replace this operand with a new immediate operand of 10662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// the specified value. If an operand is known to be an immediate already, 10762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// the setImm method should be used. 10862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattnervoid MachineOperand::ChangeToImmediate(int64_t ImmVal) { 10962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // If this operand is currently a register operand, and if this is in a 11062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // function, deregister the operand from the register's use/def list. 111d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (isReg() && getParent() && getParent()->getParent() && 11262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner getParent()->getParent()->getParent()) 11362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner RemoveRegOperandFromRegInfo(); 11462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 11562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner OpKind = MO_Immediate; 11662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Contents.ImmVal = ImmVal; 11762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner} 11862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 11962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// ChangeToRegister - Replace this operand with a new register operand of 12062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// the specified value. If an operand is known to be an register already, 12162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// the setReg method should be used. 12262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattnervoid MachineOperand::ChangeToRegister(unsigned Reg, bool isDef, bool isImp, 1234784f1fc73abf6005b7b7262d395af71b57b1255Evan Cheng bool isKill, bool isDead, bool isUndef) { 12462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // If this operand is already a register operand, use setReg to update the 12562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // register's use/def lists. 126d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (isReg()) { 127e009180f2bbcf5edbe3b583936c37c4b3be2d082Dale Johannesen assert(!isEarlyClobber()); 12862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner setReg(Reg); 12962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } else { 13062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Otherwise, change this to a register and set the reg#. 13162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner OpKind = MO_Register; 13262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Contents.Reg.RegNo = Reg; 13362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 13462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // If this operand is embedded in a function, add the operand to the 13562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // register's use/def list. 13662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (MachineInstr *MI = getParent()) 13762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (MachineBasicBlock *MBB = MI->getParent()) 13862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (MachineFunction *MF = MBB->getParent()) 13962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner AddRegOperandToRegInfo(&MF->getRegInfo()); 14062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 14162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 14262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner IsDef = isDef; 14362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner IsImp = isImp; 14462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner IsKill = isKill; 14562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner IsDead = isDead; 1464784f1fc73abf6005b7b7262d395af71b57b1255Evan Cheng IsUndef = isUndef; 147e009180f2bbcf5edbe3b583936c37c4b3be2d082Dale Johannesen IsEarlyClobber = false; 14862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner SubReg = 0; 14962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner} 15062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 151f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner/// isIdenticalTo - Return true if this operand is identical to the specified 152f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner/// operand. 153f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattnerbool MachineOperand::isIdenticalTo(const MachineOperand &Other) const { 15431530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner if (getType() != Other.getType() || 15531530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner getTargetFlags() != Other.getTargetFlags()) 15631530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner return false; 157f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner 158f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner switch (getType()) { 159c23197a26f34f559ea9797de51e187087c039c42Torok Edwin default: llvm_unreachable("Unrecognized operand type"); 160f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_Register: 161f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner return getReg() == Other.getReg() && isDef() == Other.isDef() && 162f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner getSubReg() == Other.getSubReg(); 163f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_Immediate: 164f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner return getImm() == Other.getImm(); 165e8b7ccf0c9a06831266d690d0b10ead71e0a4ac5Nate Begeman case MachineOperand::MO_FPImmediate: 166e8b7ccf0c9a06831266d690d0b10ead71e0a4ac5Nate Begeman return getFPImm() == Other.getFPImm(); 167f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_MachineBasicBlock: 168f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner return getMBB() == Other.getMBB(); 169f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_FrameIndex: 1708aa797aa51cd4ea1ec6f46f4891a6897944b75b2Chris Lattner return getIndex() == Other.getIndex(); 171f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_ConstantPoolIndex: 1728aa797aa51cd4ea1ec6f46f4891a6897944b75b2Chris Lattner return getIndex() == Other.getIndex() && getOffset() == Other.getOffset(); 173f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_JumpTableIndex: 1748aa797aa51cd4ea1ec6f46f4891a6897944b75b2Chris Lattner return getIndex() == Other.getIndex(); 175f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_GlobalAddress: 176f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner return getGlobal() == Other.getGlobal() && getOffset() == Other.getOffset(); 177f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_ExternalSymbol: 178f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner return !strcmp(getSymbolName(), Other.getSymbolName()) && 179f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner getOffset() == Other.getOffset(); 180f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner } 181f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner} 182f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner 183f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner/// print - Print the specified machine operand. 184f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner/// 1855ca6bd14a00ba5310ce1a632d3a0cc8f8af31433Mon P Wangvoid MachineOperand::print(raw_ostream &OS, const TargetMachine *TM) const { 186f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner switch (getType()) { 187f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_Register: 1886f0d024a534af18d9e60b3ea757376cd8a3a980eDan Gohman if (getReg() == 0 || TargetRegisterInfo::isVirtualRegister(getReg())) { 189f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner OS << "%reg" << getReg(); 190f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner } else { 191f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner // If the instruction is embedded into a basic block, we can find the 19262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // target info for the instruction. 193f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner if (TM == 0) 194f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner if (const MachineInstr *MI = getParent()) 195f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner if (const MachineBasicBlock *MBB = MI->getParent()) 196f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner if (const MachineFunction *MF = MBB->getParent()) 197f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner TM = &MF->getTarget(); 198f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner 199f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner if (TM) 200e6d088acc90e422451e098555d383d4d65b6ce6bBill Wendling OS << "%" << TM->getRegisterInfo()->get(getReg()).Name; 201f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner else 202f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner OS << "%mreg" << getReg(); 203f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner } 2042ccc83966914593d98af5671ce10a3bf2dcf7513Dan Gohman 2054784f1fc73abf6005b7b7262d395af71b57b1255Evan Cheng if (getSubReg() != 0) 20631530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner OS << ':' << getSubReg(); 2072ccc83966914593d98af5671ce10a3bf2dcf7513Dan Gohman 2084784f1fc73abf6005b7b7262d395af71b57b1255Evan Cheng if (isDef() || isKill() || isDead() || isImplicit() || isUndef() || 2094784f1fc73abf6005b7b7262d395af71b57b1255Evan Cheng isEarlyClobber()) { 21031530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner OS << '<'; 211f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner bool NeedComma = false; 212f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner if (isImplicit()) { 21331530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner if (NeedComma) OS << ','; 214f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner OS << (isDef() ? "imp-def" : "imp-use"); 215f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner NeedComma = true; 216f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner } else if (isDef()) { 21731530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner if (NeedComma) OS << ','; 218913d3dfac43f29921467f33aa743f28ee1bfc5d1Dale Johannesen if (isEarlyClobber()) 219913d3dfac43f29921467f33aa743f28ee1bfc5d1Dale Johannesen OS << "earlyclobber,"; 220f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner OS << "def"; 221f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner NeedComma = true; 222f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner } 2234784f1fc73abf6005b7b7262d395af71b57b1255Evan Cheng if (isKill() || isDead() || isUndef()) { 22431530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner if (NeedComma) OS << ','; 225181eb737b28628adc4376b973610a02039385026Bill Wendling if (isKill()) OS << "kill"; 226181eb737b28628adc4376b973610a02039385026Bill Wendling if (isDead()) OS << "dead"; 2274784f1fc73abf6005b7b7262d395af71b57b1255Evan Cheng if (isUndef()) { 2284784f1fc73abf6005b7b7262d395af71b57b1255Evan Cheng if (isKill() || isDead()) 2294784f1fc73abf6005b7b7262d395af71b57b1255Evan Cheng OS << ','; 2304784f1fc73abf6005b7b7262d395af71b57b1255Evan Cheng OS << "undef"; 2314784f1fc73abf6005b7b7262d395af71b57b1255Evan Cheng } 232f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner } 23331530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner OS << '>'; 234f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner } 235f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner break; 236f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_Immediate: 237f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner OS << getImm(); 238f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner break; 239e8b7ccf0c9a06831266d690d0b10ead71e0a4ac5Nate Begeman case MachineOperand::MO_FPImmediate: 2401d0be15f89cb5056e20e2d24faa8d6afb1573bcaOwen Anderson if (getFPImm()->getType() == Type::getFloatTy(getFPImm()->getContext())) 241e8b7ccf0c9a06831266d690d0b10ead71e0a4ac5Nate Begeman OS << getFPImm()->getValueAPF().convertToFloat(); 24231530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner else 243e8b7ccf0c9a06831266d690d0b10ead71e0a4ac5Nate Begeman OS << getFPImm()->getValueAPF().convertToDouble(); 244e8b7ccf0c9a06831266d690d0b10ead71e0a4ac5Nate Begeman break; 245f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_MachineBasicBlock: 246f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner OS << "mbb<" 2478aa797aa51cd4ea1ec6f46f4891a6897944b75b2Chris Lattner << ((Value*)getMBB()->getBasicBlock())->getName() 24831530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner << "," << (void*)getMBB() << '>'; 249f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner break; 250f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_FrameIndex: 25131530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner OS << "<fi#" << getIndex() << '>'; 252f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner break; 253f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_ConstantPoolIndex: 2548aa797aa51cd4ea1ec6f46f4891a6897944b75b2Chris Lattner OS << "<cp#" << getIndex(); 255f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner if (getOffset()) OS << "+" << getOffset(); 25631530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner OS << '>'; 257f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner break; 258f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_JumpTableIndex: 25931530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner OS << "<jt#" << getIndex() << '>'; 260f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner break; 261f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_GlobalAddress: 262f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner OS << "<ga:" << ((Value*)getGlobal())->getName(); 263f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner if (getOffset()) OS << "+" << getOffset(); 26431530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner OS << '>'; 265f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner break; 266f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_ExternalSymbol: 267f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner OS << "<es:" << getSymbolName(); 268f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner if (getOffset()) OS << "+" << getOffset(); 26931530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner OS << '>'; 270f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner break; 271f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner default: 272c23197a26f34f559ea9797de51e187087c039c42Torok Edwin llvm_unreachable("Unrecognized operand type"); 273f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner } 27431530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner 27531530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner if (unsigned TF = getTargetFlags()) 27631530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner OS << "[TF=" << TF << ']'; 277f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner} 278f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner 279f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner//===----------------------------------------------------------------------===// 280ce42e404a26454f4332c2c350c75ad27bbbb16f7Dan Gohman// MachineMemOperand Implementation 281ce42e404a26454f4332c2c350c75ad27bbbb16f7Dan Gohman//===----------------------------------------------------------------------===// 282ce42e404a26454f4332c2c350c75ad27bbbb16f7Dan Gohman 283ce42e404a26454f4332c2c350c75ad27bbbb16f7Dan GohmanMachineMemOperand::MachineMemOperand(const Value *v, unsigned int f, 284ce42e404a26454f4332c2c350c75ad27bbbb16f7Dan Gohman int64_t o, uint64_t s, unsigned int a) 285ce42e404a26454f4332c2c350c75ad27bbbb16f7Dan Gohman : Offset(o), Size(s), V(v), 286ce42e404a26454f4332c2c350c75ad27bbbb16f7Dan Gohman Flags((f & 7) | ((Log2_32(a) + 1) << 3)) { 28728f02fdd76f4efc05d14649e0eec90ce8e71e17eDan Gohman assert(getBaseAlignment() == a && "Alignment is not a power of 2!"); 288c5e1f98fdf44993c2bfe4c1ef633b2358cd718c1Dan Gohman assert((isLoad() || isStore()) && "Not a load/store!"); 289ce42e404a26454f4332c2c350c75ad27bbbb16f7Dan Gohman} 290ce42e404a26454f4332c2c350c75ad27bbbb16f7Dan Gohman 291b8d2f550b84523e8a73198f98e5d450ec3b4fee7Dan Gohman/// Profile - Gather unique data for the object. 292b8d2f550b84523e8a73198f98e5d450ec3b4fee7Dan Gohman/// 293b8d2f550b84523e8a73198f98e5d450ec3b4fee7Dan Gohmanvoid MachineMemOperand::Profile(FoldingSetNodeID &ID) const { 294b8d2f550b84523e8a73198f98e5d450ec3b4fee7Dan Gohman ID.AddInteger(Offset); 295b8d2f550b84523e8a73198f98e5d450ec3b4fee7Dan Gohman ID.AddInteger(Size); 296b8d2f550b84523e8a73198f98e5d450ec3b4fee7Dan Gohman ID.AddPointer(V); 297b8d2f550b84523e8a73198f98e5d450ec3b4fee7Dan Gohman ID.AddInteger(Flags); 298b8d2f550b84523e8a73198f98e5d450ec3b4fee7Dan Gohman} 299b8d2f550b84523e8a73198f98e5d450ec3b4fee7Dan Gohman 300ce42e404a26454f4332c2c350c75ad27bbbb16f7Dan Gohman//===----------------------------------------------------------------------===// 301f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner// MachineInstr Implementation 302f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner//===----------------------------------------------------------------------===// 303f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner 304c0f64ffab93d11fb27a3b8a0707b77400918a20eEvan Cheng/// MachineInstr ctor - This constructor creates a dummy MachineInstr with 30567f660cb080965ea93ed6d7265a67100f2fe38e4Evan Cheng/// TID NULL and no operands. 306c0f64ffab93d11fb27a3b8a0707b77400918a20eEvan ChengMachineInstr::MachineInstr() 30706efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen : TID(0), NumImplicitOps(0), Parent(0), debugLoc(DebugLoc::getUnknownLoc()) { 3082c3f7ae3843bdc9dcfe85393e178211976c1f9bdDan Gohman // Make sure that we get added to a machine basicblock 3092c3f7ae3843bdc9dcfe85393e178211976c1f9bdDan Gohman LeakDetector::addGarbageObject(this); 3107279122e668816bed0d4f38d3392bbab0140fad0Chris Lattner} 3117279122e668816bed0d4f38d3392bbab0140fad0Chris Lattner 31267f660cb080965ea93ed6d7265a67100f2fe38e4Evan Chengvoid MachineInstr::addImplicitDefUseOperands() { 31367f660cb080965ea93ed6d7265a67100f2fe38e4Evan Cheng if (TID->ImplicitDefs) 314a4161ee99478e7f8f9e33481e1c0dc79f0b4bd7dChris Lattner for (const unsigned *ImpDefs = TID->ImplicitDefs; *ImpDefs; ++ImpDefs) 3158019f41c0b7fda031d494e3900eada7d4e494772Chris Lattner addOperand(MachineOperand::CreateReg(*ImpDefs, true, true)); 31667f660cb080965ea93ed6d7265a67100f2fe38e4Evan Cheng if (TID->ImplicitUses) 317a4161ee99478e7f8f9e33481e1c0dc79f0b4bd7dChris Lattner for (const unsigned *ImpUses = TID->ImplicitUses; *ImpUses; ++ImpUses) 3188019f41c0b7fda031d494e3900eada7d4e494772Chris Lattner addOperand(MachineOperand::CreateReg(*ImpUses, false, true)); 319d7de496b23fca8145f777a56281457bf64e8bbadEvan Cheng} 320d7de496b23fca8145f777a56281457bf64e8bbadEvan Cheng 321d7de496b23fca8145f777a56281457bf64e8bbadEvan Cheng/// MachineInstr ctor - This constructor create a MachineInstr and add the 322c0f64ffab93d11fb27a3b8a0707b77400918a20eEvan Cheng/// implicit operands. It reserves space for number of operands specified by 323749c6f6b5ed301c84aac562e414486549d7b98ebChris Lattner/// TargetInstrDesc or the numOperands if it is not zero. (for 324c0f64ffab93d11fb27a3b8a0707b77400918a20eEvan Cheng/// instructions with variable number of operands). 325749c6f6b5ed301c84aac562e414486549d7b98ebChris LattnerMachineInstr::MachineInstr(const TargetInstrDesc &tid, bool NoImp) 32606efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen : TID(&tid), NumImplicitOps(0), Parent(0), 32706efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen debugLoc(DebugLoc::getUnknownLoc()) { 328349c4952009525b27383e2120a6b3c998f39bd09Chris Lattner if (!NoImp && TID->getImplicitDefs()) 329349c4952009525b27383e2120a6b3c998f39bd09Chris Lattner for (const unsigned *ImpDefs = TID->getImplicitDefs(); *ImpDefs; ++ImpDefs) 330d7de496b23fca8145f777a56281457bf64e8bbadEvan Cheng NumImplicitOps++; 331349c4952009525b27383e2120a6b3c998f39bd09Chris Lattner if (!NoImp && TID->getImplicitUses()) 332349c4952009525b27383e2120a6b3c998f39bd09Chris Lattner for (const unsigned *ImpUses = TID->getImplicitUses(); *ImpUses; ++ImpUses) 333d7de496b23fca8145f777a56281457bf64e8bbadEvan Cheng NumImplicitOps++; 334349c4952009525b27383e2120a6b3c998f39bd09Chris Lattner Operands.reserve(NumImplicitOps + TID->getNumOperands()); 335fa9457276a2174aaf302240dd32d89900ad021aeEvan Cheng if (!NoImp) 336fa9457276a2174aaf302240dd32d89900ad021aeEvan Cheng addImplicitDefUseOperands(); 3372c3f7ae3843bdc9dcfe85393e178211976c1f9bdDan Gohman // Make sure that we get added to a machine basicblock 3382c3f7ae3843bdc9dcfe85393e178211976c1f9bdDan Gohman LeakDetector::addGarbageObject(this); 339d7de496b23fca8145f777a56281457bf64e8bbadEvan Cheng} 340d7de496b23fca8145f777a56281457bf64e8bbadEvan Cheng 34106efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen/// MachineInstr ctor - As above, but with a DebugLoc. 34206efc02854a96a9f92edc3bf46b0451f488cf2e6Dale JohannesenMachineInstr::MachineInstr(const TargetInstrDesc &tid, const DebugLoc dl, 34306efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen bool NoImp) 34406efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen : TID(&tid), NumImplicitOps(0), Parent(0), debugLoc(dl) { 34506efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen if (!NoImp && TID->getImplicitDefs()) 34606efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen for (const unsigned *ImpDefs = TID->getImplicitDefs(); *ImpDefs; ++ImpDefs) 34706efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen NumImplicitOps++; 34806efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen if (!NoImp && TID->getImplicitUses()) 34906efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen for (const unsigned *ImpUses = TID->getImplicitUses(); *ImpUses; ++ImpUses) 35006efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen NumImplicitOps++; 35106efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen Operands.reserve(NumImplicitOps + TID->getNumOperands()); 35206efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen if (!NoImp) 35306efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen addImplicitDefUseOperands(); 35406efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen // Make sure that we get added to a machine basicblock 35506efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen LeakDetector::addGarbageObject(this); 35606efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen} 35706efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen 35806efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen/// MachineInstr ctor - Work exactly the same as the ctor two above, except 35906efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen/// that the MachineInstr is created and added to the end of the specified 36006efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen/// basic block. 36106efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen/// 36206efc02854a96a9f92edc3bf46b0451f488cf2e6Dale JohannesenMachineInstr::MachineInstr(MachineBasicBlock *MBB, const TargetInstrDesc &tid) 36306efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen : TID(&tid), NumImplicitOps(0), Parent(0), 36406efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen debugLoc(DebugLoc::getUnknownLoc()) { 36506efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen assert(MBB && "Cannot use inserting ctor with null basic block!"); 36606efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen if (TID->ImplicitDefs) 36706efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen for (const unsigned *ImpDefs = TID->getImplicitDefs(); *ImpDefs; ++ImpDefs) 36806efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen NumImplicitOps++; 36906efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen if (TID->ImplicitUses) 37006efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen for (const unsigned *ImpUses = TID->getImplicitUses(); *ImpUses; ++ImpUses) 37106efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen NumImplicitOps++; 37206efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen Operands.reserve(NumImplicitOps + TID->getNumOperands()); 37306efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen addImplicitDefUseOperands(); 37406efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen // Make sure that we get added to a machine basicblock 37506efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen LeakDetector::addGarbageObject(this); 37606efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen MBB->push_back(this); // Add instruction to end of basic block! 37706efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen} 37806efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen 37906efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen/// MachineInstr ctor - As above, but with a DebugLoc. 380ddd7fcb887be752ec8167276a697994ad9cb9c4eChris Lattner/// 38106efc02854a96a9f92edc3bf46b0451f488cf2e6Dale JohannesenMachineInstr::MachineInstr(MachineBasicBlock *MBB, const DebugLoc dl, 382749c6f6b5ed301c84aac562e414486549d7b98ebChris Lattner const TargetInstrDesc &tid) 38306efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen : TID(&tid), NumImplicitOps(0), Parent(0), debugLoc(dl) { 384ddd7fcb887be752ec8167276a697994ad9cb9c4eChris Lattner assert(MBB && "Cannot use inserting ctor with null basic block!"); 38567f660cb080965ea93ed6d7265a67100f2fe38e4Evan Cheng if (TID->ImplicitDefs) 386349c4952009525b27383e2120a6b3c998f39bd09Chris Lattner for (const unsigned *ImpDefs = TID->getImplicitDefs(); *ImpDefs; ++ImpDefs) 387d7de496b23fca8145f777a56281457bf64e8bbadEvan Cheng NumImplicitOps++; 38867f660cb080965ea93ed6d7265a67100f2fe38e4Evan Cheng if (TID->ImplicitUses) 389349c4952009525b27383e2120a6b3c998f39bd09Chris Lattner for (const unsigned *ImpUses = TID->getImplicitUses(); *ImpUses; ++ImpUses) 390d7de496b23fca8145f777a56281457bf64e8bbadEvan Cheng NumImplicitOps++; 391349c4952009525b27383e2120a6b3c998f39bd09Chris Lattner Operands.reserve(NumImplicitOps + TID->getNumOperands()); 39267f660cb080965ea93ed6d7265a67100f2fe38e4Evan Cheng addImplicitDefUseOperands(); 3932c3f7ae3843bdc9dcfe85393e178211976c1f9bdDan Gohman // Make sure that we get added to a machine basicblock 3942c3f7ae3843bdc9dcfe85393e178211976c1f9bdDan Gohman LeakDetector::addGarbageObject(this); 395ddd7fcb887be752ec8167276a697994ad9cb9c4eChris Lattner MBB->push_back(this); // Add instruction to end of basic block! 396ddd7fcb887be752ec8167276a697994ad9cb9c4eChris Lattner} 397ddd7fcb887be752ec8167276a697994ad9cb9c4eChris Lattner 398ce22e76996d3ff0930716fa60c29df60a7e0481bMisha Brukman/// MachineInstr ctor - Copies MachineInstr arg exactly 399ce22e76996d3ff0930716fa60c29df60a7e0481bMisha Brukman/// 4001ed9922794cda9dbe295e74674b909287e544632Evan ChengMachineInstr::MachineInstr(MachineFunction &MF, const MachineInstr &MI) 40106efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen : TID(&MI.getDesc()), NumImplicitOps(0), Parent(0), 40206efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen debugLoc(MI.getDebugLoc()) { 403943b5e117fe9a087f9aa529a2632c2d32cc22374Chris Lattner Operands.reserve(MI.getNumOperands()); 404b5159ed0cb7943e5938782f7693beb18342165ceTanya Lattner 405ce22e76996d3ff0930716fa60c29df60a7e0481bMisha Brukman // Add operands 4061ed9922794cda9dbe295e74674b909287e544632Evan Cheng for (unsigned i = 0; i != MI.getNumOperands(); ++i) 4071ed9922794cda9dbe295e74674b909287e544632Evan Cheng addOperand(MI.getOperand(i)); 4081ed9922794cda9dbe295e74674b909287e544632Evan Cheng NumImplicitOps = MI.NumImplicitOps; 4090c63e03e04d3982e1913479bba404c3debc9a27eTanya Lattner 4108e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman // Add memory operands. 411fed90b6d097d50881afb45e4d79f430db66dd741Dan Gohman for (std::list<MachineMemOperand>::const_iterator i = MI.memoperands_begin(), 4128e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman j = MI.memoperands_end(); i != j; ++i) 4138e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman addMemOperand(MF, *i); 4148e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman 4158e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman // Set parent to null. 416f20c1a497fe3922ac718429d65a5fe396890575eChris Lattner Parent = 0; 4176116a73da420d9b414a34ce2599dc7f6476e23fcDan Gohman 4186116a73da420d9b414a34ce2599dc7f6476e23fcDan Gohman LeakDetector::addGarbageObject(this); 419466b534a570f574ed485d875bbca8454f68dcb52Tanya Lattner} 420466b534a570f574ed485d875bbca8454f68dcb52Tanya Lattner 421ce22e76996d3ff0930716fa60c29df60a7e0481bMisha BrukmanMachineInstr::~MachineInstr() { 4222c3f7ae3843bdc9dcfe85393e178211976c1f9bdDan Gohman LeakDetector::removeGarbageObject(this); 4238e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman assert(MemOperands.empty() && 4248e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman "MachineInstr being deleted with live memoperands!"); 425e12d6abfdfc5141b2001f0c369a0e1525315b9c0Chris Lattner#ifndef NDEBUG 42662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner for (unsigned i = 0, e = Operands.size(); i != e; ++i) { 427e12d6abfdfc5141b2001f0c369a0e1525315b9c0Chris Lattner assert(Operands[i].ParentMI == this && "ParentMI mismatch!"); 428d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman assert((!Operands[i].isReg() || !Operands[i].isOnRegUseList()) && 42962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner "Reg operand def/use list corrupted"); 43062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 431e12d6abfdfc5141b2001f0c369a0e1525315b9c0Chris Lattner#endif 432aad5c0505183a5b7913f1a443a1f0650122551ccAlkis Evlogimenos} 433aad5c0505183a5b7913f1a443a1f0650122551ccAlkis Evlogimenos 43462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// getRegInfo - If this instruction is embedded into a MachineFunction, 43562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// return the MachineRegisterInfo object for the current function, otherwise 43662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// return null. 43762ed6b9ade63bf01717ce5274fa11e93e873d245Chris LattnerMachineRegisterInfo *MachineInstr::getRegInfo() { 43862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (MachineBasicBlock *MBB = getParent()) 4394e526b9a5b36d9bac170c03df0a5d6fb76740ae2Dan Gohman return &MBB->getParent()->getRegInfo(); 44062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner return 0; 44162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner} 44262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 44362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// RemoveRegOperandsFromUseLists - Unlink all of the register operands in 44462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// this instruction from their respective use lists. This requires that the 44562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// operands already be on their use lists. 44662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattnervoid MachineInstr::RemoveRegOperandsFromUseLists() { 44762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner for (unsigned i = 0, e = Operands.size(); i != e; ++i) { 448d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (Operands[i].isReg()) 44962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands[i].RemoveRegOperandFromRegInfo(); 45062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 45162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner} 45262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 45362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// AddRegOperandsToUseLists - Add all of the register operands in 45462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// this instruction from their respective use lists. This requires that the 45562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// operands not be on their use lists yet. 45662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattnervoid MachineInstr::AddRegOperandsToUseLists(MachineRegisterInfo &RegInfo) { 45762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner for (unsigned i = 0, e = Operands.size(); i != e; ++i) { 458d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (Operands[i].isReg()) 45962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands[i].AddRegOperandToRegInfo(&RegInfo); 46062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 46162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner} 46262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 46362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 46462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// addOperand - Add the specified operand to the instruction. If it is an 46562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// implicit operand, it is added to the end of the operand list. If it is 46662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// an explicit operand it is added at the end of the explicit operand list 46762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// (before the first implicit operand). 46862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattnervoid MachineInstr::addOperand(const MachineOperand &Op) { 469d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman bool isImpReg = Op.isReg() && Op.isImplicit(); 47062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner assert((isImpReg || !OperandsComplete()) && 47162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner "Trying to add an operand to a machine instr that is already done!"); 47262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 473bcf28c08b3f0a3c4aa1be8f1485f6452d9a2b690Dan Gohman MachineRegisterInfo *RegInfo = getRegInfo(); 474bcf28c08b3f0a3c4aa1be8f1485f6452d9a2b690Dan Gohman 47562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // If we are adding the operand to the end of the list, our job is simpler. 47662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // This is true most of the time, so this is a reasonable optimization. 47762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (isImpReg || NumImplicitOps == 0) { 47862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // We can only do this optimization if we know that the operand list won't 47962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // reallocate. 48062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (Operands.empty() || Operands.size()+1 <= Operands.capacity()) { 48162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands.push_back(Op); 48262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 48362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Set the parent of the operand. 48462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands.back().ParentMI = this; 48562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 48662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // If the operand is a register, update the operand's use list. 487d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (Op.isReg()) 488bcf28c08b3f0a3c4aa1be8f1485f6452d9a2b690Dan Gohman Operands.back().AddRegOperandToRegInfo(RegInfo); 48962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner return; 49062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 49162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 49262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 49362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Otherwise, we have to insert a real operand before any implicit ones. 49462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner unsigned OpNo = Operands.size()-NumImplicitOps; 49562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 49662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // If this instruction isn't embedded into a function, then we don't need to 49762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // update any operand lists. 49862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (RegInfo == 0) { 49962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Simple insertion, no reginfo update needed for other register operands. 50062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands.insert(Operands.begin()+OpNo, Op); 50162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands[OpNo].ParentMI = this; 50262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 50362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Do explicitly set the reginfo for this operand though, to ensure the 50462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // next/prev fields are properly nulled out. 505d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (Operands[OpNo].isReg()) 50662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands[OpNo].AddRegOperandToRegInfo(0); 50762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 50862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } else if (Operands.size()+1 <= Operands.capacity()) { 50962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Otherwise, we have to remove register operands from their register use 51062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // list, add the operand, then add the register operands back to their use 51162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // list. This also must handle the case when the operand list reallocates 51262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // to somewhere else. 51362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 51462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // If insertion of this operand won't cause reallocation of the operand 51562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // list, just remove the implicit operands, add the operand, then re-add all 51662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // the rest of the operands. 51762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner for (unsigned i = OpNo, e = Operands.size(); i != e; ++i) { 518d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman assert(Operands[i].isReg() && "Should only be an implicit reg!"); 51962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands[i].RemoveRegOperandFromRegInfo(); 52062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 52162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 52262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Add the operand. If it is a register, add it to the reg list. 52362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands.insert(Operands.begin()+OpNo, Op); 52462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands[OpNo].ParentMI = this; 52562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 526d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (Operands[OpNo].isReg()) 52762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands[OpNo].AddRegOperandToRegInfo(RegInfo); 52862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 52962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Re-add all the implicit ops. 53062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner for (unsigned i = OpNo+1, e = Operands.size(); i != e; ++i) { 531d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman assert(Operands[i].isReg() && "Should only be an implicit reg!"); 53262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands[i].AddRegOperandToRegInfo(RegInfo); 53362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 53462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } else { 53562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Otherwise, we will be reallocating the operand list. Remove all reg 53662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // operands from their list, then readd them after the operand list is 53762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // reallocated. 53862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner RemoveRegOperandsFromUseLists(); 53962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 54062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands.insert(Operands.begin()+OpNo, Op); 54162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands[OpNo].ParentMI = this; 54262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 54362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Re-add all the operands. 54462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner AddRegOperandsToUseLists(*RegInfo); 54562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 54662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner} 54762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 54862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// RemoveOperand - Erase an operand from an instruction, leaving it with one 54962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// fewer operand than it started with. 55062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// 55162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattnervoid MachineInstr::RemoveOperand(unsigned OpNo) { 55262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner assert(OpNo < Operands.size() && "Invalid operand number"); 55362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 55462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Special case removing the last one. 55562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (OpNo == Operands.size()-1) { 55662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // If needed, remove from the reg def/use list. 557d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (Operands.back().isReg() && Operands.back().isOnRegUseList()) 55862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands.back().RemoveRegOperandFromRegInfo(); 55962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 56062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands.pop_back(); 56162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner return; 56262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 56362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 56462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Otherwise, we are removing an interior operand. If we have reginfo to 56562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // update, remove all operands that will be shifted down from their reg lists, 56662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // move everything down, then re-add them. 56762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner MachineRegisterInfo *RegInfo = getRegInfo(); 56862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (RegInfo) { 56962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner for (unsigned i = OpNo, e = Operands.size(); i != e; ++i) { 570d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (Operands[i].isReg()) 57162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands[i].RemoveRegOperandFromRegInfo(); 57262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 57362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 57462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 57562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands.erase(Operands.begin()+OpNo); 57662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 57762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (RegInfo) { 57862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner for (unsigned i = OpNo, e = Operands.size(); i != e; ++i) { 579d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (Operands[i].isReg()) 58062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands[i].AddRegOperandToRegInfo(RegInfo); 58162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 58262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 58362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner} 58462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 5858e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman/// addMemOperand - Add a MachineMemOperand to the machine instruction, 5868e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman/// referencing arbitrary storage. 5878e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohmanvoid MachineInstr::addMemOperand(MachineFunction &MF, 5888e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman const MachineMemOperand &MO) { 589fed90b6d097d50881afb45e4d79f430db66dd741Dan Gohman MemOperands.push_back(MO); 5908e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman} 5918e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman 5928e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman/// clearMemOperands - Erase all of this MachineInstr's MachineMemOperands. 5938e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohmanvoid MachineInstr::clearMemOperands(MachineFunction &MF) { 594fed90b6d097d50881afb45e4d79f430db66dd741Dan Gohman MemOperands.clear(); 5958e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman} 5968e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman 59762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 59848d7c069c76882475c23de153bda9483cd3c9bb4Chris Lattner/// removeFromParent - This method unlinks 'this' from the containing basic 59948d7c069c76882475c23de153bda9483cd3c9bb4Chris Lattner/// block, and returns it, but does not delete it. 60048d7c069c76882475c23de153bda9483cd3c9bb4Chris LattnerMachineInstr *MachineInstr::removeFromParent() { 60148d7c069c76882475c23de153bda9483cd3c9bb4Chris Lattner assert(getParent() && "Not embedded in a basic block!"); 60248d7c069c76882475c23de153bda9483cd3c9bb4Chris Lattner getParent()->remove(this); 60348d7c069c76882475c23de153bda9483cd3c9bb4Chris Lattner return this; 60448d7c069c76882475c23de153bda9483cd3c9bb4Chris Lattner} 60548d7c069c76882475c23de153bda9483cd3c9bb4Chris Lattner 60648d7c069c76882475c23de153bda9483cd3c9bb4Chris Lattner 6078e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman/// eraseFromParent - This method unlinks 'this' from the containing basic 6088e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman/// block, and deletes it. 6098e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohmanvoid MachineInstr::eraseFromParent() { 6108e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman assert(getParent() && "Not embedded in a basic block!"); 6118e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman getParent()->erase(this); 6128e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman} 6138e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman 6148e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman 61521326fc2ad47ee7e73a8c0b03a4a0cc0b0a0c4e8Brian Gaeke/// OperandComplete - Return true if it's illegal to add a new operand 61621326fc2ad47ee7e73a8c0b03a4a0cc0b0a0c4e8Brian Gaeke/// 6172a90ba60175f93e7438165d8423100aa573c16c5Chris Lattnerbool MachineInstr::OperandsComplete() const { 618349c4952009525b27383e2120a6b3c998f39bd09Chris Lattner unsigned short NumOperands = TID->getNumOperands(); 6198f707e15fbd09ca948b86419bcb0c92470827ac9Chris Lattner if (!TID->isVariadic() && getNumOperands()-NumImplicitOps >= NumOperands) 6203497782f3843007de3be0c43e3ff206a01e2ccacVikram S. Adve return true; // Broken: we have all the operands of this instruction! 621413746e9833d97a8b463ef6a788aa326cf3829a2Chris Lattner return false; 62270bc4b5d1a3795a8f41be96723cfcbccac8e1671Vikram S. Adve} 62370bc4b5d1a3795a8f41be96723cfcbccac8e1671Vikram S. Adve 62419e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng/// getNumExplicitOperands - Returns the number of non-implicit operands. 62519e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng/// 62619e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Chengunsigned MachineInstr::getNumExplicitOperands() const { 627349c4952009525b27383e2120a6b3c998f39bd09Chris Lattner unsigned NumOperands = TID->getNumOperands(); 6288f707e15fbd09ca948b86419bcb0c92470827ac9Chris Lattner if (!TID->isVariadic()) 62919e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng return NumOperands; 63019e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng 6319407cd4ede3e2c090b958778d0fdbdac8b2dbec4Dan Gohman for (unsigned i = NumOperands, e = getNumOperands(); i != e; ++i) { 6329407cd4ede3e2c090b958778d0fdbdac8b2dbec4Dan Gohman const MachineOperand &MO = getOperand(i); 633d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (!MO.isReg() || !MO.isImplicit()) 63419e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng NumOperands++; 63519e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng } 63619e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng return NumOperands; 63719e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng} 63819e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng 6398ace2cd034be10c09be51daf08c3dda327f54262Chris Lattner 6404406604047423576e36657c7ede266ca42e79642Dan Gohman/// isLabel - Returns true if the MachineInstr represents a label. 6414406604047423576e36657c7ede266ca42e79642Dan Gohman/// 6424406604047423576e36657c7ede266ca42e79642Dan Gohmanbool MachineInstr::isLabel() const { 6434406604047423576e36657c7ede266ca42e79642Dan Gohman return getOpcode() == TargetInstrInfo::DBG_LABEL || 6444406604047423576e36657c7ede266ca42e79642Dan Gohman getOpcode() == TargetInstrInfo::EH_LABEL || 6454406604047423576e36657c7ede266ca42e79642Dan Gohman getOpcode() == TargetInstrInfo::GC_LABEL; 6464406604047423576e36657c7ede266ca42e79642Dan Gohman} 6474406604047423576e36657c7ede266ca42e79642Dan Gohman 648bb81d97feb396a8bb21d074db1c57e9f66525f40Evan Cheng/// isDebugLabel - Returns true if the MachineInstr represents a debug label. 649bb81d97feb396a8bb21d074db1c57e9f66525f40Evan Cheng/// 650bb81d97feb396a8bb21d074db1c57e9f66525f40Evan Chengbool MachineInstr::isDebugLabel() const { 6514406604047423576e36657c7ede266ca42e79642Dan Gohman return getOpcode() == TargetInstrInfo::DBG_LABEL; 652bb81d97feb396a8bb21d074db1c57e9f66525f40Evan Cheng} 653bb81d97feb396a8bb21d074db1c57e9f66525f40Evan Cheng 654faa510726f4b40aa4495e60e4d341c6467e3fb01Evan Cheng/// findRegisterUseOperandIdx() - Returns the MachineOperand that is a use of 655f9ca50e3dce88b2f9e2f2f0cac2d3ed78afda841Jim Grosbach/// the specific register or -1 if it is not found. It further tightens 65676d7e76c15c258ec4a71fd75a2a32bca3a5e5e27Evan Cheng/// the search criteria to a use that kills the register if isKill is true. 6576130f66eaae89f8878590796977678afa8448926Evan Chengint MachineInstr::findRegisterUseOperandIdx(unsigned Reg, bool isKill, 6586130f66eaae89f8878590796977678afa8448926Evan Cheng const TargetRegisterInfo *TRI) const { 659576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 660f277ee4be7edabb759a7f78138b693d72d0c263fEvan Cheng const MachineOperand &MO = getOperand(i); 661d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (!MO.isReg() || !MO.isUse()) 6626130f66eaae89f8878590796977678afa8448926Evan Cheng continue; 6636130f66eaae89f8878590796977678afa8448926Evan Cheng unsigned MOReg = MO.getReg(); 6646130f66eaae89f8878590796977678afa8448926Evan Cheng if (!MOReg) 6656130f66eaae89f8878590796977678afa8448926Evan Cheng continue; 6666130f66eaae89f8878590796977678afa8448926Evan Cheng if (MOReg == Reg || 6676130f66eaae89f8878590796977678afa8448926Evan Cheng (TRI && 6686130f66eaae89f8878590796977678afa8448926Evan Cheng TargetRegisterInfo::isPhysicalRegister(MOReg) && 6696130f66eaae89f8878590796977678afa8448926Evan Cheng TargetRegisterInfo::isPhysicalRegister(Reg) && 6706130f66eaae89f8878590796977678afa8448926Evan Cheng TRI->isSubRegister(MOReg, Reg))) 67176d7e76c15c258ec4a71fd75a2a32bca3a5e5e27Evan Cheng if (!isKill || MO.isKill()) 67232eb1f1ca4220d2f24916e587ad7e8574d7d82a1Evan Cheng return i; 673b371f457b0ea4a652a9f526ba4375c80ae542252Evan Cheng } 67432eb1f1ca4220d2f24916e587ad7e8574d7d82a1Evan Cheng return -1; 675b371f457b0ea4a652a9f526ba4375c80ae542252Evan Cheng} 676b371f457b0ea4a652a9f526ba4375c80ae542252Evan Cheng 6776130f66eaae89f8878590796977678afa8448926Evan Cheng/// findRegisterDefOperandIdx() - Returns the operand index that is a def of 678703bfe69092e8da79fbef2fc5ca07b805ad9f753Dan Gohman/// the specified register or -1 if it is not found. If isDead is true, defs 679703bfe69092e8da79fbef2fc5ca07b805ad9f753Dan Gohman/// that are not dead are skipped. If TargetRegisterInfo is non-null, then it 680703bfe69092e8da79fbef2fc5ca07b805ad9f753Dan Gohman/// also checks if there is a def of a super-register. 6816130f66eaae89f8878590796977678afa8448926Evan Chengint MachineInstr::findRegisterDefOperandIdx(unsigned Reg, bool isDead, 6826130f66eaae89f8878590796977678afa8448926Evan Cheng const TargetRegisterInfo *TRI) const { 683b371f457b0ea4a652a9f526ba4375c80ae542252Evan Cheng for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 6846130f66eaae89f8878590796977678afa8448926Evan Cheng const MachineOperand &MO = getOperand(i); 685d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (!MO.isReg() || !MO.isDef()) 6866130f66eaae89f8878590796977678afa8448926Evan Cheng continue; 6876130f66eaae89f8878590796977678afa8448926Evan Cheng unsigned MOReg = MO.getReg(); 6886130f66eaae89f8878590796977678afa8448926Evan Cheng if (MOReg == Reg || 6896130f66eaae89f8878590796977678afa8448926Evan Cheng (TRI && 6906130f66eaae89f8878590796977678afa8448926Evan Cheng TargetRegisterInfo::isPhysicalRegister(MOReg) && 6916130f66eaae89f8878590796977678afa8448926Evan Cheng TargetRegisterInfo::isPhysicalRegister(Reg) && 6926130f66eaae89f8878590796977678afa8448926Evan Cheng TRI->isSubRegister(MOReg, Reg))) 6936130f66eaae89f8878590796977678afa8448926Evan Cheng if (!isDead || MO.isDead()) 6946130f66eaae89f8878590796977678afa8448926Evan Cheng return i; 695576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng } 6966130f66eaae89f8878590796977678afa8448926Evan Cheng return -1; 697576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng} 69819e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng 699f277ee4be7edabb759a7f78138b693d72d0c263fEvan Cheng/// findFirstPredOperandIdx() - Find the index of the first operand in the 700f277ee4be7edabb759a7f78138b693d72d0c263fEvan Cheng/// operand list that is used to represent the predicate. It returns -1 if 701f277ee4be7edabb759a7f78138b693d72d0c263fEvan Cheng/// none is found. 702f277ee4be7edabb759a7f78138b693d72d0c263fEvan Chengint MachineInstr::findFirstPredOperandIdx() const { 703749c6f6b5ed301c84aac562e414486549d7b98ebChris Lattner const TargetInstrDesc &TID = getDesc(); 704749c6f6b5ed301c84aac562e414486549d7b98ebChris Lattner if (TID.isPredicable()) { 70519e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng for (unsigned i = 0, e = getNumOperands(); i != e; ++i) 706749c6f6b5ed301c84aac562e414486549d7b98ebChris Lattner if (TID.OpInfo[i].isPredicate()) 707f277ee4be7edabb759a7f78138b693d72d0c263fEvan Cheng return i; 70819e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng } 70919e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng 710f277ee4be7edabb759a7f78138b693d72d0c263fEvan Cheng return -1; 71119e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng} 712576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng 713d9df5017040489303acb57bdd8697ef0f8bafc08Bob Wilson/// isRegTiedToUseOperand - Given the index of a register def operand, 714d9df5017040489303acb57bdd8697ef0f8bafc08Bob Wilson/// check if the register def is tied to a source operand, due to either 715d9df5017040489303acb57bdd8697ef0f8bafc08Bob Wilson/// two-address elimination or inline assembly constraints. Returns the 716d9df5017040489303acb57bdd8697ef0f8bafc08Bob Wilson/// first tied use operand index by reference is UseOpIdx is not null. 717ce9be2cf5dc84865f6b819bd3f9be16944426268Jakob Stoklund Olesenbool MachineInstr:: 718ce9be2cf5dc84865f6b819bd3f9be16944426268Jakob Stoklund OlesenisRegTiedToUseOperand(unsigned DefOpIdx, unsigned *UseOpIdx) const { 719fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng if (getOpcode() == TargetInstrInfo::INLINEASM) { 720d9df5017040489303acb57bdd8697ef0f8bafc08Bob Wilson assert(DefOpIdx >= 2); 721d9df5017040489303acb57bdd8697ef0f8bafc08Bob Wilson const MachineOperand &MO = getOperand(DefOpIdx); 722c30aa7b3de0ce8c37e9630e8e7a73cb83c808c62Chris Lattner if (!MO.isReg() || !MO.isDef() || MO.getReg() == 0) 723fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng return false; 724ef5d070bbe55d7165fc84778ca7757c3cfeea491Evan Cheng // Determine the actual operand index that corresponds to this index. 725fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng unsigned DefNo = 0; 726ef5d070bbe55d7165fc84778ca7757c3cfeea491Evan Cheng unsigned DefPart = 0; 727fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng for (unsigned i = 1, e = getNumOperands(); i < e; ) { 728fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng const MachineOperand &FMO = getOperand(i); 72945d34fe35846eed7019bdc2f7814025302849e0cJakob Stoklund Olesen // After the normal asm operands there may be additional imp-def regs. 73045d34fe35846eed7019bdc2f7814025302849e0cJakob Stoklund Olesen if (!FMO.isImm()) 73145d34fe35846eed7019bdc2f7814025302849e0cJakob Stoklund Olesen return false; 732fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng // Skip over this def. 733ef5d070bbe55d7165fc84778ca7757c3cfeea491Evan Cheng unsigned NumOps = InlineAsm::getNumOperandRegisters(FMO.getImm()); 734ef5d070bbe55d7165fc84778ca7757c3cfeea491Evan Cheng unsigned PrevDef = i + 1; 735ef5d070bbe55d7165fc84778ca7757c3cfeea491Evan Cheng i = PrevDef + NumOps; 736ef5d070bbe55d7165fc84778ca7757c3cfeea491Evan Cheng if (i > DefOpIdx) { 737ef5d070bbe55d7165fc84778ca7757c3cfeea491Evan Cheng DefPart = DefOpIdx - PrevDef; 738fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng break; 739ef5d070bbe55d7165fc84778ca7757c3cfeea491Evan Cheng } 740fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng ++DefNo; 741fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng } 742ef5d070bbe55d7165fc84778ca7757c3cfeea491Evan Cheng for (unsigned i = 1, e = getNumOperands(); i != e; ++i) { 743fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng const MachineOperand &FMO = getOperand(i); 744fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng if (!FMO.isImm()) 745fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng continue; 746fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng if (i+1 >= e || !getOperand(i+1).isReg() || !getOperand(i+1).isUse()) 747fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng continue; 748fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng unsigned Idx; 749ef5d070bbe55d7165fc84778ca7757c3cfeea491Evan Cheng if (InlineAsm::isUseOperandTiedToDef(FMO.getImm(), Idx) && 750d9df5017040489303acb57bdd8697ef0f8bafc08Bob Wilson Idx == DefNo) { 751d9df5017040489303acb57bdd8697ef0f8bafc08Bob Wilson if (UseOpIdx) 752ef5d070bbe55d7165fc84778ca7757c3cfeea491Evan Cheng *UseOpIdx = (unsigned)i + 1 + DefPart; 753fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng return true; 754d9df5017040489303acb57bdd8697ef0f8bafc08Bob Wilson } 755fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng } 756ef5d070bbe55d7165fc84778ca7757c3cfeea491Evan Cheng return false; 757fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng } 758fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng 759d9df5017040489303acb57bdd8697ef0f8bafc08Bob Wilson assert(getOperand(DefOpIdx).isDef() && "DefOpIdx is not a def!"); 760749c6f6b5ed301c84aac562e414486549d7b98ebChris Lattner const TargetInstrDesc &TID = getDesc(); 761ef0732d25a9882c947984ae3f2afbef5463ba00fEvan Cheng for (unsigned i = 0, e = TID.getNumOperands(); i != e; ++i) { 762ef0732d25a9882c947984ae3f2afbef5463ba00fEvan Cheng const MachineOperand &MO = getOperand(i); 7632ce7f2068f13566f5a70ee779e3bb83a6cb8d942Dan Gohman if (MO.isReg() && MO.isUse() && 764d9df5017040489303acb57bdd8697ef0f8bafc08Bob Wilson TID.getOperandConstraint(i, TOI::TIED_TO) == (int)DefOpIdx) { 765d9df5017040489303acb57bdd8697ef0f8bafc08Bob Wilson if (UseOpIdx) 766d9df5017040489303acb57bdd8697ef0f8bafc08Bob Wilson *UseOpIdx = (unsigned)i; 767ef0732d25a9882c947984ae3f2afbef5463ba00fEvan Cheng return true; 768d9df5017040489303acb57bdd8697ef0f8bafc08Bob Wilson } 76932dfbeada7292167bb488f36a71a5a6a519ddaffEvan Cheng } 77032dfbeada7292167bb488f36a71a5a6a519ddaffEvan Cheng return false; 77132dfbeada7292167bb488f36a71a5a6a519ddaffEvan Cheng} 77232dfbeada7292167bb488f36a71a5a6a519ddaffEvan Cheng 773a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng/// isRegTiedToDefOperand - Return true if the operand of the specified index 774a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng/// is a register use and it is tied to an def operand. It also returns the def 775a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng/// operand index by reference. 776ce9be2cf5dc84865f6b819bd3f9be16944426268Jakob Stoklund Olesenbool MachineInstr:: 777ce9be2cf5dc84865f6b819bd3f9be16944426268Jakob Stoklund OlesenisRegTiedToDefOperand(unsigned UseOpIdx, unsigned *DefOpIdx) const { 778fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng if (getOpcode() == TargetInstrInfo::INLINEASM) { 779fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng const MachineOperand &MO = getOperand(UseOpIdx); 7800c8382ce9a96e36325b17d242fd1af16564d8a85Chris Lattner if (!MO.isReg() || !MO.isUse() || MO.getReg() == 0) 781fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng return false; 78257e599a46b7b1321f9af02d1cecb4fa6b34f8a52Jakob Stoklund Olesen 78357e599a46b7b1321f9af02d1cecb4fa6b34f8a52Jakob Stoklund Olesen // Find the flag operand corresponding to UseOpIdx 78457e599a46b7b1321f9af02d1cecb4fa6b34f8a52Jakob Stoklund Olesen unsigned FlagIdx, NumOps=0; 78557e599a46b7b1321f9af02d1cecb4fa6b34f8a52Jakob Stoklund Olesen for (FlagIdx = 1; FlagIdx < UseOpIdx; FlagIdx += NumOps+1) { 78657e599a46b7b1321f9af02d1cecb4fa6b34f8a52Jakob Stoklund Olesen const MachineOperand &UFMO = getOperand(FlagIdx); 78745d34fe35846eed7019bdc2f7814025302849e0cJakob Stoklund Olesen // After the normal asm operands there may be additional imp-def regs. 78845d34fe35846eed7019bdc2f7814025302849e0cJakob Stoklund Olesen if (!UFMO.isImm()) 78945d34fe35846eed7019bdc2f7814025302849e0cJakob Stoklund Olesen return false; 79057e599a46b7b1321f9af02d1cecb4fa6b34f8a52Jakob Stoklund Olesen NumOps = InlineAsm::getNumOperandRegisters(UFMO.getImm()); 79157e599a46b7b1321f9af02d1cecb4fa6b34f8a52Jakob Stoklund Olesen assert(NumOps < getNumOperands() && "Invalid inline asm flag"); 79257e599a46b7b1321f9af02d1cecb4fa6b34f8a52Jakob Stoklund Olesen if (UseOpIdx < FlagIdx+NumOps+1) 79357e599a46b7b1321f9af02d1cecb4fa6b34f8a52Jakob Stoklund Olesen break; 794ef5d070bbe55d7165fc84778ca7757c3cfeea491Evan Cheng } 79557e599a46b7b1321f9af02d1cecb4fa6b34f8a52Jakob Stoklund Olesen if (FlagIdx >= UseOpIdx) 796ef5d070bbe55d7165fc84778ca7757c3cfeea491Evan Cheng return false; 79757e599a46b7b1321f9af02d1cecb4fa6b34f8a52Jakob Stoklund Olesen const MachineOperand &UFMO = getOperand(FlagIdx); 798fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng unsigned DefNo; 799fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng if (InlineAsm::isUseOperandTiedToDef(UFMO.getImm(), DefNo)) { 800fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng if (!DefOpIdx) 801fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng return true; 802fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng 803fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng unsigned DefIdx = 1; 804fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng // Remember to adjust the index. First operand is asm string, then there 805fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng // is a flag for each. 806fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng while (DefNo) { 807fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng const MachineOperand &FMO = getOperand(DefIdx); 808fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng assert(FMO.isImm()); 809fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng // Skip over this def. 810fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng DefIdx += InlineAsm::getNumOperandRegisters(FMO.getImm()) + 1; 811fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng --DefNo; 812fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng } 813ef5d070bbe55d7165fc84778ca7757c3cfeea491Evan Cheng *DefOpIdx = DefIdx + UseOpIdx - FlagIdx; 814fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng return true; 815fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng } 816fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng return false; 817fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng } 818fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng 819a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng const TargetInstrDesc &TID = getDesc(); 820a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng if (UseOpIdx >= TID.getNumOperands()) 821a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng return false; 822a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng const MachineOperand &MO = getOperand(UseOpIdx); 823a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng if (!MO.isReg() || !MO.isUse()) 824a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng return false; 825a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng int DefIdx = TID.getOperandConstraint(UseOpIdx, TOI::TIED_TO); 826a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng if (DefIdx == -1) 827a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng return false; 828a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng if (DefOpIdx) 829a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng *DefOpIdx = (unsigned)DefIdx; 830a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng return true; 831a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng} 832a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng 833576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng/// copyKillDeadInfo - Copies kill / dead operand properties from MI. 834576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng/// 835576d123e130a8291669dd2384a3735cc4933fd00Evan Chengvoid MachineInstr::copyKillDeadInfo(const MachineInstr *MI) { 836576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng for (unsigned i = 0, e = MI->getNumOperands(); i != e; ++i) { 837576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng const MachineOperand &MO = MI->getOperand(i); 838d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (!MO.isReg() || (!MO.isKill() && !MO.isDead())) 839576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng continue; 840576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng for (unsigned j = 0, ee = getNumOperands(); j != ee; ++j) { 841576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng MachineOperand &MOp = getOperand(j); 842576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng if (!MOp.isIdenticalTo(MO)) 843576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng continue; 844576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng if (MO.isKill()) 845576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng MOp.setIsKill(); 846576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng else 847576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng MOp.setIsDead(); 848576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng break; 849576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng } 850576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng } 851576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng} 852576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng 85319e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng/// copyPredicates - Copies predicate operand(s) from MI. 85419e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Chengvoid MachineInstr::copyPredicates(const MachineInstr *MI) { 855749c6f6b5ed301c84aac562e414486549d7b98ebChris Lattner const TargetInstrDesc &TID = MI->getDesc(); 856b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng if (!TID.isPredicable()) 857b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng return; 858b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng for (unsigned i = 0, e = MI->getNumOperands(); i != e; ++i) { 859b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng if (TID.OpInfo[i].isPredicate()) { 860b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng // Predicated operands must be last operands. 861b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng addOperand(MI->getOperand(i)); 86219e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng } 86319e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng } 86419e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng} 86519e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng 8669f1c8317a4676945b4961ddb9827ef2412551620Evan Cheng/// isSafeToMove - Return true if it is safe to move this instruction. If 8679f1c8317a4676945b4961ddb9827ef2412551620Evan Cheng/// SawStore is set to true, it means that there is a store (or call) between 8689f1c8317a4676945b4961ddb9827ef2412551620Evan Cheng/// the instruction's location and its intended destination. 869b3b930a011554fc7566dd4311af3862b01e5fd8fDan Gohmanbool MachineInstr::isSafeToMove(const TargetInstrInfo *TII, 870b3b930a011554fc7566dd4311af3862b01e5fd8fDan Gohman bool &SawStore) const { 871b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng // Ignore stuff that we obviously can't move. 872b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng if (TID->mayStore() || TID->isCall()) { 873b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng SawStore = true; 874b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng return false; 875b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng } 876237dee125997dcaf16e391878465162cc680c0faDan Gohman if (TID->isTerminator() || TID->hasUnmodeledSideEffects()) 877b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng return false; 878b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng 879b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng // See if this instruction does a load. If so, we have to guarantee that the 880b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng // loaded value doesn't change between the load and the its intended 881b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng // destination. The check for isInvariantLoad gives the targe the chance to 882b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng // classify the load as always returning a constant, e.g. a constant pool 883b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng // load. 8843e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman if (TID->mayLoad() && !TII->isInvariantLoad(this)) 885b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng // Otherwise, this is a real load. If there is a store between the load and 8867cc2c406d0c82bcf329048ced643ec77fcae60e6Evan Cheng // end of block, or if the load is volatile, we can't move it. 887d790a5ceee7138d8a5352432ccf862a42e3f5819Dan Gohman return !SawStore && !hasVolatileMemoryRef(); 8883e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman 889b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng return true; 890b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng} 891b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng 892df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng/// isSafeToReMat - Return true if it's safe to rematerialize the specified 893df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng/// instruction which defined the specified register instead of copying it. 894b3b930a011554fc7566dd4311af3862b01e5fd8fDan Gohmanbool MachineInstr::isSafeToReMat(const TargetInstrInfo *TII, 895b3b930a011554fc7566dd4311af3862b01e5fd8fDan Gohman unsigned DstReg) const { 896df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng bool SawStore = false; 8973689ff450ae2d72aadf48c70f499e4368684d1e3Evan Cheng if (!getDesc().isRematerializable() || 8983689ff450ae2d72aadf48c70f499e4368684d1e3Evan Cheng !TII->isTriviallyReMaterializable(this) || 8993689ff450ae2d72aadf48c70f499e4368684d1e3Evan Cheng !isSafeToMove(TII, SawStore)) 900df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng return false; 901df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 902cbad42cfd1cc93a41ff26ea2e8895bfbc09f54f2Dan Gohman const MachineOperand &MO = getOperand(i); 903d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (!MO.isReg()) 904df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng continue; 905df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng // FIXME: For now, do not remat any instruction with register operands. 906df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng // Later on, we can loosen the restriction is the register operands have 907df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng // not been modified between the def and use. Note, this is different from 9088763c1c54413c9cd0b56e2860edb5856151a69fcEvan Cheng // MachineSink because the code is no longer in two-address form (at least 909df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng // partially). 910df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng if (MO.isUse()) 911df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng return false; 912df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng else if (!MO.isDead() && MO.getReg() != DstReg) 913df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng return false; 914df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng } 915df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng return true; 916df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng} 917df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng 9183e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman/// hasVolatileMemoryRef - Return true if this instruction may have a 9193e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman/// volatile memory reference, or if the information describing the 9203e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman/// memory reference is not available. Return false if it is known to 9213e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman/// have no volatile memory references. 9223e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohmanbool MachineInstr::hasVolatileMemoryRef() const { 9233e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman // An instruction known never to access memory won't have a volatile access. 9243e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman if (!TID->mayStore() && 9253e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman !TID->mayLoad() && 9263e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman !TID->isCall() && 9273e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman !TID->hasUnmodeledSideEffects()) 9283e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman return false; 9293e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman 9303e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman // Otherwise, if the instruction has no memory reference information, 9313e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman // conservatively assume it wasn't preserved. 9323e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman if (memoperands_empty()) 9333e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman return true; 9343e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman 9353e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman // Check the memory reference information for volatile references. 9363e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman for (std::list<MachineMemOperand>::const_iterator I = memoperands_begin(), 9373e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman E = memoperands_end(); I != E; ++I) 9383e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman if (I->isVolatile()) 9393e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman return true; 9403e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman 9413e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman return false; 9423e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman} 9433e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman 94421326fc2ad47ee7e73a8c0b03a4a0cc0b0a0c4e8Brian Gaekevoid MachineInstr::dump() const { 945705e07f578e2b3af47ddab610feb4e7f2d3063a5Chris Lattner errs() << " " << *this; 9465ca6bd14a00ba5310ce1a632d3a0cc8f8af31433Mon P Wang} 9475ca6bd14a00ba5310ce1a632d3a0cc8f8af31433Mon P Wang 9485ca6bd14a00ba5310ce1a632d3a0cc8f8af31433Mon P Wangvoid MachineInstr::print(raw_ostream &OS, const TargetMachine *TM) const { 949e3087890ac7f2fcf4697f8e09091e9a384311b9cChris Lattner // Specialize printing if op#0 is definition 9506a592271fb2946a0704b06fd66199987cdd40b3cChris Lattner unsigned StartOp = 0; 951d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (getNumOperands() && getOperand(0).isReg() && getOperand(0).isDef()) { 952f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner getOperand(0).print(OS, TM); 9536a592271fb2946a0704b06fd66199987cdd40b3cChris Lattner OS << " = "; 9546a592271fb2946a0704b06fd66199987cdd40b3cChris Lattner ++StartOp; // Don't print this operand again! 9556a592271fb2946a0704b06fd66199987cdd40b3cChris Lattner } 956b140762a45d21aaed054f15adaff0fc2274d939dTanya Lattner 957749c6f6b5ed301c84aac562e414486549d7b98ebChris Lattner OS << getDesc().getName(); 958edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 9596a592271fb2946a0704b06fd66199987cdd40b3cChris Lattner for (unsigned i = StartOp, e = getNumOperands(); i != e; ++i) { 9606a592271fb2946a0704b06fd66199987cdd40b3cChris Lattner if (i != StartOp) 9616a592271fb2946a0704b06fd66199987cdd40b3cChris Lattner OS << ","; 9626a592271fb2946a0704b06fd66199987cdd40b3cChris Lattner OS << " "; 963f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner getOperand(i).print(OS, TM); 9641049164aa6b06d91d9b3b557a9a213eaf3f6319aChris Lattner } 965edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 9668e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman if (!memoperands_empty()) { 9672bfe6ff605f07e8f50874b1326227efc8bb8ed3dDan Gohman OS << ", Mem:"; 968fed90b6d097d50881afb45e4d79f430db66dd741Dan Gohman for (std::list<MachineMemOperand>::const_iterator i = memoperands_begin(), 9698e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman e = memoperands_end(); i != e; ++i) { 9708e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman const MachineMemOperand &MRO = *i; 97169de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman const Value *V = MRO.getValue(); 97269de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman 97369de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman assert((MRO.isLoad() || MRO.isStore()) && 97469de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman "SV has to be a load, store or both."); 97569de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman 97669de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman if (MRO.isVolatile()) 97769de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman OS << "Volatile "; 9782bfe6ff605f07e8f50874b1326227efc8bb8ed3dDan Gohman 97969de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman if (MRO.isLoad()) 9802bfe6ff605f07e8f50874b1326227efc8bb8ed3dDan Gohman OS << "LD"; 98169de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman if (MRO.isStore()) 9822bfe6ff605f07e8f50874b1326227efc8bb8ed3dDan Gohman OS << "ST"; 98369de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman 984bbd8322daaefa70ba1a282956df5f977e783524bEvan Cheng OS << "(" << MRO.getSize() << "," << MRO.getAlignment() << ") ["; 98569de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman 9862bfe6ff605f07e8f50874b1326227efc8bb8ed3dDan Gohman if (!V) 9872bfe6ff605f07e8f50874b1326227efc8bb8ed3dDan Gohman OS << "<unknown>"; 9882bfe6ff605f07e8f50874b1326227efc8bb8ed3dDan Gohman else if (!V->getName().empty()) 9892bfe6ff605f07e8f50874b1326227efc8bb8ed3dDan Gohman OS << V->getName(); 990edfb72c6288118ab9c900a560ded89dfaa107296Chris Lattner else if (const PseudoSourceValue *PSV = dyn_cast<PseudoSourceValue>(V)) { 9915ca6bd14a00ba5310ce1a632d3a0cc8f8af31433Mon P Wang PSV->print(OS); 992edfb72c6288118ab9c900a560ded89dfaa107296Chris Lattner } else 9932bfe6ff605f07e8f50874b1326227efc8bb8ed3dDan Gohman OS << V; 9942bfe6ff605f07e8f50874b1326227efc8bb8ed3dDan Gohman 9952bfe6ff605f07e8f50874b1326227efc8bb8ed3dDan Gohman OS << " + " << MRO.getOffset() << "]"; 99669de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman } 99769de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman } 99869de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman 999b5ef27375731ece13a8ae0102b3f3233351036afBill Wendling if (!debugLoc.isUnknown()) { 1000b5ef27375731ece13a8ae0102b3f3233351036afBill Wendling const MachineFunction *MF = getParent()->getParent(); 1001b5ef27375731ece13a8ae0102b3f3233351036afBill Wendling DebugLocTuple DLT = MF->getDebugLocTuple(debugLoc); 1002a26eae64ddf607549f9e47046d46ea5b9ec648b4Argyrios Kyrtzidis DICompileUnit CU(DLT.CompileUnit); 1003a26eae64ddf607549f9e47046d46ea5b9ec648b4Argyrios Kyrtzidis std::string Dir, Fn; 1004b5ef27375731ece13a8ae0102b3f3233351036afBill Wendling OS << " [dbg: " 1005a26eae64ddf607549f9e47046d46ea5b9ec648b4Argyrios Kyrtzidis << CU.getDirectory(Dir) << '/' << CU.getFilename(Fn) << "," 1006b5ef27375731ece13a8ae0102b3f3233351036afBill Wendling << DLT.Line << "," 1007b5ef27375731ece13a8ae0102b3f3233351036afBill Wendling << DLT.Col << "]"; 1008b5ef27375731ece13a8ae0102b3f3233351036afBill Wendling } 1009b5ef27375731ece13a8ae0102b3f3233351036afBill Wendling 10101049164aa6b06d91d9b3b557a9a213eaf3f6319aChris Lattner OS << "\n"; 10111049164aa6b06d91d9b3b557a9a213eaf3f6319aChris Lattner} 10121049164aa6b06d91d9b3b557a9a213eaf3f6319aChris Lattner 1013b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Andersonbool MachineInstr::addRegisterKilled(unsigned IncomingReg, 10146f0d024a534af18d9e60b3ea757376cd8a3a980eDan Gohman const TargetRegisterInfo *RegInfo, 1015b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson bool AddIfNotFound) { 10169b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng bool isPhysReg = TargetRegisterInfo::isPhysicalRegister(IncomingReg); 10172ebc11ac6d19ec806da97bd4f2d49a27932d09fbDan Gohman bool hasAliases = isPhysReg && RegInfo->getAliasSet(IncomingReg); 10183f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman bool Found = false; 10199b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng SmallVector<unsigned,4> DeadOps; 10204a23d72ec21d1bdfda69fd16c9fc10cec39f1fedBill Wendling for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 10214a23d72ec21d1bdfda69fd16c9fc10cec39f1fedBill Wendling MachineOperand &MO = getOperand(i); 1022efb8e3e113cbf359d6a838c3b37fedc8305d19bbJakob Stoklund Olesen if (!MO.isReg() || !MO.isUse() || MO.isUndef()) 10239b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng continue; 10249b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng unsigned Reg = MO.getReg(); 10259b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng if (!Reg) 10269b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng continue; 10274a23d72ec21d1bdfda69fd16c9fc10cec39f1fedBill Wendling 10289b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng if (Reg == IncomingReg) { 10293f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman if (!Found) { 10303f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman if (MO.isKill()) 10313f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman // The register is already marked kill. 10323f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman return true; 1033ece48185168ab130b1777feb86d9e3fe80eb87d2Jakob Stoklund Olesen if (isPhysReg && isRegTiedToDefOperand(i)) 1034ece48185168ab130b1777feb86d9e3fe80eb87d2Jakob Stoklund Olesen // Two-address uses of physregs must not be marked kill. 1035ece48185168ab130b1777feb86d9e3fe80eb87d2Jakob Stoklund Olesen return true; 10363f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman MO.setIsKill(); 10373f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman Found = true; 10383f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman } 10393f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman } else if (hasAliases && MO.isKill() && 10403f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman TargetRegisterInfo::isPhysicalRegister(Reg)) { 10419b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng // A super-register kill already exists. 10429b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng if (RegInfo->isSuperRegister(IncomingReg, Reg)) 10432ebc11ac6d19ec806da97bd4f2d49a27932d09fbDan Gohman return true; 10442ebc11ac6d19ec806da97bd4f2d49a27932d09fbDan Gohman if (RegInfo->isSubRegister(IncomingReg, Reg)) 10459b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng DeadOps.push_back(i); 1046b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson } 1047b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson } 1048b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson 10499b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng // Trim unneeded kill operands. 10509b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng while (!DeadOps.empty()) { 10519b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng unsigned OpIdx = DeadOps.back(); 10529b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng if (getOperand(OpIdx).isImplicit()) 10539b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng RemoveOperand(OpIdx); 10549b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng else 10559b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng getOperand(OpIdx).setIsKill(false); 10569b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng DeadOps.pop_back(); 10579b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng } 10589b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng 10594a23d72ec21d1bdfda69fd16c9fc10cec39f1fedBill Wendling // If not found, this means an alias of one of the operands is killed. Add a 1060b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson // new implicit operand if required. 10613f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman if (!Found && AddIfNotFound) { 10624a23d72ec21d1bdfda69fd16c9fc10cec39f1fedBill Wendling addOperand(MachineOperand::CreateReg(IncomingReg, 10634a23d72ec21d1bdfda69fd16c9fc10cec39f1fedBill Wendling false /*IsDef*/, 10644a23d72ec21d1bdfda69fd16c9fc10cec39f1fedBill Wendling true /*IsImp*/, 10654a23d72ec21d1bdfda69fd16c9fc10cec39f1fedBill Wendling true /*IsKill*/)); 1066b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson return true; 1067b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson } 10683f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman return Found; 1069b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson} 1070b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson 1071b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Andersonbool MachineInstr::addRegisterDead(unsigned IncomingReg, 10726f0d024a534af18d9e60b3ea757376cd8a3a980eDan Gohman const TargetRegisterInfo *RegInfo, 1073b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson bool AddIfNotFound) { 10749b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng bool isPhysReg = TargetRegisterInfo::isPhysicalRegister(IncomingReg); 107501b2e236b571e7c22ee8493b7ea19eda9830d75cEvan Cheng bool hasAliases = isPhysReg && RegInfo->getAliasSet(IncomingReg); 10763f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman bool Found = false; 10779b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng SmallVector<unsigned,4> DeadOps; 1078b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 1079b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson MachineOperand &MO = getOperand(i); 1080d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (!MO.isReg() || !MO.isDef()) 10819b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng continue; 10829b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng unsigned Reg = MO.getReg(); 10833f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman if (!Reg) 10843f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman continue; 10853f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman 10869b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng if (Reg == IncomingReg) { 10873f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman if (!Found) { 10883f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman if (MO.isDead()) 10893f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman // The register is already marked dead. 10903f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman return true; 10913f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman MO.setIsDead(); 10923f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman Found = true; 10933f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman } 10943f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman } else if (hasAliases && MO.isDead() && 10953f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman TargetRegisterInfo::isPhysicalRegister(Reg)) { 10969b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng // There exists a super-register that's marked dead. 10979b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng if (RegInfo->isSuperRegister(IncomingReg, Reg)) 10982ebc11ac6d19ec806da97bd4f2d49a27932d09fbDan Gohman return true; 109922ae99908258dd5631fde7128a94c418ed08eae5Owen Anderson if (RegInfo->getSubRegisters(IncomingReg) && 110022ae99908258dd5631fde7128a94c418ed08eae5Owen Anderson RegInfo->getSuperRegisters(Reg) && 110122ae99908258dd5631fde7128a94c418ed08eae5Owen Anderson RegInfo->isSubRegister(IncomingReg, Reg)) 11029b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng DeadOps.push_back(i); 1103b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson } 1104b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson } 1105b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson 11069b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng // Trim unneeded dead operands. 11079b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng while (!DeadOps.empty()) { 11089b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng unsigned OpIdx = DeadOps.back(); 11099b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng if (getOperand(OpIdx).isImplicit()) 11109b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng RemoveOperand(OpIdx); 11119b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng else 11129b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng getOperand(OpIdx).setIsDead(false); 11139b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng DeadOps.pop_back(); 11149b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng } 11159b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng 11163f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman // If not found, this means an alias of one of the operands is dead. Add a 11173f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman // new implicit operand if required. 111831530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner if (Found || !AddIfNotFound) 111931530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner return Found; 112031530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner 112131530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner addOperand(MachineOperand::CreateReg(IncomingReg, 112231530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner true /*IsDef*/, 112331530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner true /*IsImp*/, 112431530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner false /*IsKill*/, 112531530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner true /*IsDead*/)); 112631530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner return true; 1127b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson} 1128