MachineInstr.cpp revision 1015ba7018c87f48cc7bb45a564eb4a27241e76a
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" 168c2b52552c90f39e4b2fed43e309e599e742b6acDan Gohman#include "llvm/Function.h" 17fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng#include "llvm/InlineAsm.h" 1872aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner#include "llvm/Metadata.h" 195e9cd434234a36089daeee915f1dc02b96947fbaChris Lattner#include "llvm/Type.h" 2084bc5427d6883f73cfeae3da640acd011d35c006Chris Lattner#include "llvm/Value.h" 21cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman#include "llvm/Assembly/Writer.h" 22506049f29f4f202a8e45feb916cc0264440a7f6dEvan Cheng#include "llvm/CodeGen/MachineConstantPool.h" 238517e1f0beea9b5e47974f083396d53294c390adChris Lattner#include "llvm/CodeGen/MachineFunction.h" 24c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman#include "llvm/CodeGen/MachineMemOperand.h" 2562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner#include "llvm/CodeGen/MachineRegisterInfo.h" 2669de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman#include "llvm/CodeGen/PseudoSourceValue.h" 2772aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner#include "llvm/MC/MCSymbol.h" 281049164aa6b06d91d9b3b557a9a213eaf3f6319aChris Lattner#include "llvm/Target/TargetMachine.h" 29bb81d97feb396a8bb21d074db1c57e9f66525f40Evan Cheng#include "llvm/Target/TargetInstrInfo.h" 30f14cf85e334ff03bbdd23e473f14ffa4fb025e94Chris Lattner#include "llvm/Target/TargetInstrDesc.h" 316f0d024a534af18d9e60b3ea757376cd8a3a980eDan Gohman#include "llvm/Target/TargetRegisterInfo.h" 32e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman#include "llvm/Analysis/AliasAnalysis.h" 33a26eae64ddf607549f9e47046d46ea5b9ec648b4Argyrios Kyrtzidis#include "llvm/Analysis/DebugInfo.h" 343b325334102144ec39910563eabebde434504564David Greene#include "llvm/Support/Debug.h" 35c25e7581b9b8088910da31702d4ca21c4734c6d7Torok Edwin#include "llvm/Support/ErrorHandling.h" 362c3f7ae3843bdc9dcfe85393e178211976c1f9bdDan Gohman#include "llvm/Support/LeakDetector.h" 37ce42e404a26454f4332c2c350c75ad27bbbb16f7Dan Gohman#include "llvm/Support/MathExtras.h" 38edfb72c6288118ab9c900a560ded89dfaa107296Chris Lattner#include "llvm/Support/raw_ostream.h" 39b8d2f550b84523e8a73198f98e5d450ec3b4fee7Dan Gohman#include "llvm/ADT/FoldingSet.h" 400742b59913a7760eb26f08121cd244a37e83e3b3Chris Lattnerusing namespace llvm; 41d0fde30ce850b78371fd1386338350591f9ff494Brian Gaeke 42f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner//===----------------------------------------------------------------------===// 43f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner// MachineOperand Implementation 44f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner//===----------------------------------------------------------------------===// 45f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner 4662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// AddRegOperandToRegInfo - Add this register operand to the specified 4762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// MachineRegisterInfo. If it is null, then the next/prev fields should be 4862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// explicitly nulled out. 4962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattnervoid MachineOperand::AddRegOperandToRegInfo(MachineRegisterInfo *RegInfo) { 50d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman assert(isReg() && "Can only add reg operand to use lists"); 5162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 5262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // If the reginfo pointer is null, just explicitly null out or next/prev 5362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // pointers, to ensure they are not garbage. 5462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (RegInfo == 0) { 5562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Contents.Reg.Prev = 0; 5662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Contents.Reg.Next = 0; 5762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner return; 5862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 5962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 6062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Otherwise, add this operand to the head of the registers use/def list. 6180fe5311b5e9e5c4642ff46ba2377173c17797f6Chris Lattner MachineOperand **Head = &RegInfo->getRegUseDefListHead(getReg()); 6262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 6380fe5311b5e9e5c4642ff46ba2377173c17797f6Chris Lattner // For SSA values, we prefer to keep the definition at the start of the list. 6480fe5311b5e9e5c4642ff46ba2377173c17797f6Chris Lattner // we do this by skipping over the definition if it is at the head of the 6580fe5311b5e9e5c4642ff46ba2377173c17797f6Chris Lattner // list. 6680fe5311b5e9e5c4642ff46ba2377173c17797f6Chris Lattner if (*Head && (*Head)->isDef()) 6780fe5311b5e9e5c4642ff46ba2377173c17797f6Chris Lattner Head = &(*Head)->Contents.Reg.Next; 6880fe5311b5e9e5c4642ff46ba2377173c17797f6Chris Lattner 6980fe5311b5e9e5c4642ff46ba2377173c17797f6Chris Lattner Contents.Reg.Next = *Head; 7062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (Contents.Reg.Next) { 7162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner assert(getReg() == Contents.Reg.Next->getReg() && 7262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner "Different regs on the same list!"); 7362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Contents.Reg.Next->Contents.Reg.Prev = &Contents.Reg.Next; 7462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 7562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 7680fe5311b5e9e5c4642ff46ba2377173c17797f6Chris Lattner Contents.Reg.Prev = Head; 7780fe5311b5e9e5c4642ff46ba2377173c17797f6Chris Lattner *Head = this; 7862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner} 7962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 803bc1a3735f216f4a122fe4a05d39f63888ab205aDan Gohman/// RemoveRegOperandFromRegInfo - Remove this register operand from the 813bc1a3735f216f4a122fe4a05d39f63888ab205aDan Gohman/// MachineRegisterInfo it is linked with. 823bc1a3735f216f4a122fe4a05d39f63888ab205aDan Gohmanvoid MachineOperand::RemoveRegOperandFromRegInfo() { 833bc1a3735f216f4a122fe4a05d39f63888ab205aDan Gohman assert(isOnRegUseList() && "Reg operand is not on a use list"); 843bc1a3735f216f4a122fe4a05d39f63888ab205aDan Gohman // Unlink this from the doubly linked list of operands. 853bc1a3735f216f4a122fe4a05d39f63888ab205aDan Gohman MachineOperand *NextOp = Contents.Reg.Next; 863bc1a3735f216f4a122fe4a05d39f63888ab205aDan Gohman *Contents.Reg.Prev = NextOp; 873bc1a3735f216f4a122fe4a05d39f63888ab205aDan Gohman if (NextOp) { 883bc1a3735f216f4a122fe4a05d39f63888ab205aDan Gohman assert(NextOp->getReg() == getReg() && "Corrupt reg use/def chain!"); 893bc1a3735f216f4a122fe4a05d39f63888ab205aDan Gohman NextOp->Contents.Reg.Prev = Contents.Reg.Prev; 903bc1a3735f216f4a122fe4a05d39f63888ab205aDan Gohman } 913bc1a3735f216f4a122fe4a05d39f63888ab205aDan Gohman Contents.Reg.Prev = 0; 923bc1a3735f216f4a122fe4a05d39f63888ab205aDan Gohman Contents.Reg.Next = 0; 933bc1a3735f216f4a122fe4a05d39f63888ab205aDan Gohman} 943bc1a3735f216f4a122fe4a05d39f63888ab205aDan Gohman 9562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattnervoid MachineOperand::setReg(unsigned Reg) { 9662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (getReg() == Reg) return; // No change. 9762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 9862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Otherwise, we have to change the register. If this operand is embedded 9962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // into a machine function, we need to update the old and new register's 10062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // use/def lists. 10162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (MachineInstr *MI = getParent()) 10262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (MachineBasicBlock *MBB = MI->getParent()) 10362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (MachineFunction *MF = MBB->getParent()) { 10462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner RemoveRegOperandFromRegInfo(); 10562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Contents.Reg.RegNo = Reg; 10662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner AddRegOperandToRegInfo(&MF->getRegInfo()); 10762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner return; 10862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 10962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 11062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Otherwise, just change the register, no problem. :) 11162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Contents.Reg.RegNo = Reg; 11262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner} 11362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 11462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// ChangeToImmediate - Replace this operand with a new immediate operand of 11562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// the specified value. If an operand is known to be an immediate already, 11662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// the setImm method should be used. 11762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattnervoid MachineOperand::ChangeToImmediate(int64_t ImmVal) { 11862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // If this operand is currently a register operand, and if this is in a 11962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // function, deregister the operand from the register's use/def list. 120d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (isReg() && getParent() && getParent()->getParent() && 12162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner getParent()->getParent()->getParent()) 12262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner RemoveRegOperandFromRegInfo(); 12362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 12462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner OpKind = MO_Immediate; 12562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Contents.ImmVal = ImmVal; 12662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner} 12762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 12862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// ChangeToRegister - Replace this operand with a new register operand of 12962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// the specified value. If an operand is known to be an register already, 13062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// the setReg method should be used. 13162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattnervoid MachineOperand::ChangeToRegister(unsigned Reg, bool isDef, bool isImp, 1329653f9ec970147a12216d787078eab2f8b9c122aDale Johannesen bool isKill, bool isDead, bool isUndef, 1339653f9ec970147a12216d787078eab2f8b9c122aDale Johannesen bool isDebug) { 13462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // If this operand is already a register operand, use setReg to update the 13562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // register's use/def lists. 136d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (isReg()) { 137e009180f2bbcf5edbe3b583936c37c4b3be2d082Dale Johannesen assert(!isEarlyClobber()); 13862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner setReg(Reg); 13962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } else { 14062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Otherwise, change this to a register and set the reg#. 14162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner OpKind = MO_Register; 14262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Contents.Reg.RegNo = Reg; 14362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 14462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // If this operand is embedded in a function, add the operand to the 14562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // register's use/def list. 14662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (MachineInstr *MI = getParent()) 14762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (MachineBasicBlock *MBB = MI->getParent()) 14862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (MachineFunction *MF = MBB->getParent()) 14962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner AddRegOperandToRegInfo(&MF->getRegInfo()); 15062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 15162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 15262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner IsDef = isDef; 15362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner IsImp = isImp; 15462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner IsKill = isKill; 15562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner IsDead = isDead; 1564784f1fc73abf6005b7b7262d395af71b57b1255Evan Cheng IsUndef = isUndef; 157e009180f2bbcf5edbe3b583936c37c4b3be2d082Dale Johannesen IsEarlyClobber = false; 1589653f9ec970147a12216d787078eab2f8b9c122aDale Johannesen IsDebug = isDebug; 15962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner SubReg = 0; 16062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner} 16162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 162f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner/// isIdenticalTo - Return true if this operand is identical to the specified 163f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner/// operand. 164f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattnerbool MachineOperand::isIdenticalTo(const MachineOperand &Other) const { 16531530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner if (getType() != Other.getType() || 16631530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner getTargetFlags() != Other.getTargetFlags()) 16731530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner return false; 168f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner 169f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner switch (getType()) { 170c23197a26f34f559ea9797de51e187087c039c42Torok Edwin default: llvm_unreachable("Unrecognized operand type"); 171f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_Register: 172f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner return getReg() == Other.getReg() && isDef() == Other.isDef() && 173f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner getSubReg() == Other.getSubReg(); 174f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_Immediate: 175f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner return getImm() == Other.getImm(); 176e8b7ccf0c9a06831266d690d0b10ead71e0a4ac5Nate Begeman case MachineOperand::MO_FPImmediate: 177e8b7ccf0c9a06831266d690d0b10ead71e0a4ac5Nate Begeman return getFPImm() == Other.getFPImm(); 178f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_MachineBasicBlock: 179f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner return getMBB() == Other.getMBB(); 180f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_FrameIndex: 1818aa797aa51cd4ea1ec6f46f4891a6897944b75b2Chris Lattner return getIndex() == Other.getIndex(); 182f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_ConstantPoolIndex: 1838aa797aa51cd4ea1ec6f46f4891a6897944b75b2Chris Lattner return getIndex() == Other.getIndex() && getOffset() == Other.getOffset(); 184f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_JumpTableIndex: 1858aa797aa51cd4ea1ec6f46f4891a6897944b75b2Chris Lattner return getIndex() == Other.getIndex(); 186f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_GlobalAddress: 187f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner return getGlobal() == Other.getGlobal() && getOffset() == Other.getOffset(); 188f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_ExternalSymbol: 189f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner return !strcmp(getSymbolName(), Other.getSymbolName()) && 190f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner getOffset() == Other.getOffset(); 1918c2b52552c90f39e4b2fed43e309e599e742b6acDan Gohman case MachineOperand::MO_BlockAddress: 1928c2b52552c90f39e4b2fed43e309e599e742b6acDan Gohman return getBlockAddress() == Other.getBlockAddress(); 19372aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner case MachineOperand::MO_MCSymbol: 19472aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner return getMCSymbol() == Other.getMCSymbol(); 19524ad3ed71fe93059d1b46ffdbfe63259762bf547Chris Lattner case MachineOperand::MO_Metadata: 19624ad3ed71fe93059d1b46ffdbfe63259762bf547Chris Lattner return getMetadata() == Other.getMetadata(); 197f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner } 198f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner} 199f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner 200f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner/// print - Print the specified machine operand. 201f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner/// 2025ca6bd14a00ba5310ce1a632d3a0cc8f8af31433Mon P Wangvoid MachineOperand::print(raw_ostream &OS, const TargetMachine *TM) const { 20380f6c5898113806130975fd56d24929b06bf54f8Dan Gohman // If the instruction is embedded into a basic block, we can find the 20480f6c5898113806130975fd56d24929b06bf54f8Dan Gohman // target info for the instruction. 20580f6c5898113806130975fd56d24929b06bf54f8Dan Gohman if (!TM) 20680f6c5898113806130975fd56d24929b06bf54f8Dan Gohman if (const MachineInstr *MI = getParent()) 20780f6c5898113806130975fd56d24929b06bf54f8Dan Gohman if (const MachineBasicBlock *MBB = MI->getParent()) 20880f6c5898113806130975fd56d24929b06bf54f8Dan Gohman if (const MachineFunction *MF = MBB->getParent()) 20980f6c5898113806130975fd56d24929b06bf54f8Dan Gohman TM = &MF->getTarget(); 21080f6c5898113806130975fd56d24929b06bf54f8Dan Gohman 211f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner switch (getType()) { 212f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_Register: 2136f0d024a534af18d9e60b3ea757376cd8a3a980eDan Gohman if (getReg() == 0 || TargetRegisterInfo::isVirtualRegister(getReg())) { 214f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner OS << "%reg" << getReg(); 215f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner } else { 216f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner if (TM) 217e6d088acc90e422451e098555d383d4d65b6ce6bBill Wendling OS << "%" << TM->getRegisterInfo()->get(getReg()).Name; 218f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner else 2190ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman OS << "%physreg" << getReg(); 220f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner } 2212ccc83966914593d98af5671ce10a3bf2dcf7513Dan Gohman 2224784f1fc73abf6005b7b7262d395af71b57b1255Evan Cheng if (getSubReg() != 0) 22331530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner OS << ':' << getSubReg(); 2242ccc83966914593d98af5671ce10a3bf2dcf7513Dan Gohman 2254784f1fc73abf6005b7b7262d395af71b57b1255Evan Cheng if (isDef() || isKill() || isDead() || isImplicit() || isUndef() || 2264784f1fc73abf6005b7b7262d395af71b57b1255Evan Cheng isEarlyClobber()) { 22731530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner OS << '<'; 228f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner bool NeedComma = false; 2290789707c49135bba69e0e308d0fbc41bb7cbe78aEvan Cheng if (isDef()) { 23031530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner if (NeedComma) OS << ','; 231913d3dfac43f29921467f33aa743f28ee1bfc5d1Dale Johannesen if (isEarlyClobber()) 232913d3dfac43f29921467f33aa743f28ee1bfc5d1Dale Johannesen OS << "earlyclobber,"; 2330789707c49135bba69e0e308d0fbc41bb7cbe78aEvan Cheng if (isImplicit()) 2340789707c49135bba69e0e308d0fbc41bb7cbe78aEvan Cheng OS << "imp-"; 235f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner OS << "def"; 236f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner NeedComma = true; 2375affca0763836e15ca15e78ed3a0fd56ef6b2e92Evan Cheng } else if (isImplicit()) { 2380789707c49135bba69e0e308d0fbc41bb7cbe78aEvan Cheng OS << "imp-use"; 2395affca0763836e15ca15e78ed3a0fd56ef6b2e92Evan Cheng NeedComma = true; 2405affca0763836e15ca15e78ed3a0fd56ef6b2e92Evan Cheng } 2410789707c49135bba69e0e308d0fbc41bb7cbe78aEvan Cheng 2424784f1fc73abf6005b7b7262d395af71b57b1255Evan Cheng if (isKill() || isDead() || isUndef()) { 24331530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner if (NeedComma) OS << ','; 244181eb737b28628adc4376b973610a02039385026Bill Wendling if (isKill()) OS << "kill"; 245181eb737b28628adc4376b973610a02039385026Bill Wendling if (isDead()) OS << "dead"; 2464784f1fc73abf6005b7b7262d395af71b57b1255Evan Cheng if (isUndef()) { 2474784f1fc73abf6005b7b7262d395af71b57b1255Evan Cheng if (isKill() || isDead()) 2484784f1fc73abf6005b7b7262d395af71b57b1255Evan Cheng OS << ','; 2494784f1fc73abf6005b7b7262d395af71b57b1255Evan Cheng OS << "undef"; 2504784f1fc73abf6005b7b7262d395af71b57b1255Evan Cheng } 251f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner } 25231530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner OS << '>'; 253f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner } 254f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner break; 255f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_Immediate: 256f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner OS << getImm(); 257f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner break; 258e8b7ccf0c9a06831266d690d0b10ead71e0a4ac5Nate Begeman case MachineOperand::MO_FPImmediate: 259cf0fe8d813727383d630055bb9d1cde21b00b7e7Chris Lattner if (getFPImm()->getType()->isFloatTy()) 260e8b7ccf0c9a06831266d690d0b10ead71e0a4ac5Nate Begeman OS << getFPImm()->getValueAPF().convertToFloat(); 26131530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner else 262e8b7ccf0c9a06831266d690d0b10ead71e0a4ac5Nate Begeman OS << getFPImm()->getValueAPF().convertToDouble(); 263e8b7ccf0c9a06831266d690d0b10ead71e0a4ac5Nate Begeman break; 264f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_MachineBasicBlock: 2650ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman OS << "<BB#" << getMBB()->getNumber() << ">"; 266f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner break; 267f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_FrameIndex: 26831530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner OS << "<fi#" << getIndex() << '>'; 269f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner break; 270f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_ConstantPoolIndex: 2718aa797aa51cd4ea1ec6f46f4891a6897944b75b2Chris Lattner OS << "<cp#" << getIndex(); 272f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner if (getOffset()) OS << "+" << getOffset(); 27331530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner OS << '>'; 274f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner break; 275f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_JumpTableIndex: 27631530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner OS << "<jt#" << getIndex() << '>'; 277f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner break; 278f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_GlobalAddress: 2798d4e3b5b48b245ed65259270a53fcaf0bf91d9f7Dan Gohman OS << "<ga:"; 2808d4e3b5b48b245ed65259270a53fcaf0bf91d9f7Dan Gohman WriteAsOperand(OS, getGlobal(), /*PrintType=*/false); 281f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner if (getOffset()) OS << "+" << getOffset(); 28231530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner OS << '>'; 283f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner break; 284f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_ExternalSymbol: 285f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner OS << "<es:" << getSymbolName(); 286f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner if (getOffset()) OS << "+" << getOffset(); 28731530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner OS << '>'; 288f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner break; 2898c2b52552c90f39e4b2fed43e309e599e742b6acDan Gohman case MachineOperand::MO_BlockAddress: 2905f72a5ebc84a1935878b5b2d3166a505c520cdfcDale Johannesen OS << '<'; 2910ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman WriteAsOperand(OS, getBlockAddress(), /*PrintType=*/false); 2928c2b52552c90f39e4b2fed43e309e599e742b6acDan Gohman OS << '>'; 2938c2b52552c90f39e4b2fed43e309e599e742b6acDan Gohman break; 2945f72a5ebc84a1935878b5b2d3166a505c520cdfcDale Johannesen case MachineOperand::MO_Metadata: 2955f72a5ebc84a1935878b5b2d3166a505c520cdfcDale Johannesen OS << '<'; 2965f72a5ebc84a1935878b5b2d3166a505c520cdfcDale Johannesen WriteAsOperand(OS, getMetadata(), /*PrintType=*/false); 2975f72a5ebc84a1935878b5b2d3166a505c520cdfcDale Johannesen OS << '>'; 2985f72a5ebc84a1935878b5b2d3166a505c520cdfcDale Johannesen break; 29972aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner case MachineOperand::MO_MCSymbol: 30072aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner OS << "<MCSym=" << *getMCSymbol() << '>'; 30172aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner break; 302f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner default: 303c23197a26f34f559ea9797de51e187087c039c42Torok Edwin llvm_unreachable("Unrecognized operand type"); 304f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner } 30531530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner 30631530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner if (unsigned TF = getTargetFlags()) 30731530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner OS << "[TF=" << TF << ']'; 308f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner} 309f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner 310f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner//===----------------------------------------------------------------------===// 311ce42e404a26454f4332c2c350c75ad27bbbb16f7Dan Gohman// MachineMemOperand Implementation 312ce42e404a26454f4332c2c350c75ad27bbbb16f7Dan Gohman//===----------------------------------------------------------------------===// 313ce42e404a26454f4332c2c350c75ad27bbbb16f7Dan Gohman 314ce42e404a26454f4332c2c350c75ad27bbbb16f7Dan GohmanMachineMemOperand::MachineMemOperand(const Value *v, unsigned int f, 315ce42e404a26454f4332c2c350c75ad27bbbb16f7Dan Gohman int64_t o, uint64_t s, unsigned int a) 316ce42e404a26454f4332c2c350c75ad27bbbb16f7Dan Gohman : Offset(o), Size(s), V(v), 317ba2b297ca53cd685ba397177e9d2d8c239da971eDavid Greene Flags((f & ((1 << MOMaxBits) - 1)) | ((Log2_32(a) + 1) << MOMaxBits)) { 31828f02fdd76f4efc05d14649e0eec90ce8e71e17eDan Gohman assert(getBaseAlignment() == a && "Alignment is not a power of 2!"); 319c5e1f98fdf44993c2bfe4c1ef633b2358cd718c1Dan Gohman assert((isLoad() || isStore()) && "Not a load/store!"); 320ce42e404a26454f4332c2c350c75ad27bbbb16f7Dan Gohman} 321ce42e404a26454f4332c2c350c75ad27bbbb16f7Dan Gohman 322b8d2f550b84523e8a73198f98e5d450ec3b4fee7Dan Gohman/// Profile - Gather unique data for the object. 323b8d2f550b84523e8a73198f98e5d450ec3b4fee7Dan Gohman/// 324b8d2f550b84523e8a73198f98e5d450ec3b4fee7Dan Gohmanvoid MachineMemOperand::Profile(FoldingSetNodeID &ID) const { 325b8d2f550b84523e8a73198f98e5d450ec3b4fee7Dan Gohman ID.AddInteger(Offset); 326b8d2f550b84523e8a73198f98e5d450ec3b4fee7Dan Gohman ID.AddInteger(Size); 327b8d2f550b84523e8a73198f98e5d450ec3b4fee7Dan Gohman ID.AddPointer(V); 328b8d2f550b84523e8a73198f98e5d450ec3b4fee7Dan Gohman ID.AddInteger(Flags); 329b8d2f550b84523e8a73198f98e5d450ec3b4fee7Dan Gohman} 330b8d2f550b84523e8a73198f98e5d450ec3b4fee7Dan Gohman 331c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohmanvoid MachineMemOperand::refineAlignment(const MachineMemOperand *MMO) { 332c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman // The Value and Offset may differ due to CSE. But the flags and size 333c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman // should be the same. 334c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman assert(MMO->getFlags() == getFlags() && "Flags mismatch!"); 335c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman assert(MMO->getSize() == getSize() && "Size mismatch!"); 336c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman 337c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman if (MMO->getBaseAlignment() >= getBaseAlignment()) { 338c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman // Update the alignment value. 339ba2b297ca53cd685ba397177e9d2d8c239da971eDavid Greene Flags = (Flags & ((1 << MOMaxBits) - 1)) | 340ba2b297ca53cd685ba397177e9d2d8c239da971eDavid Greene ((Log2_32(MMO->getBaseAlignment()) + 1) << MOMaxBits); 341c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman // Also update the base and offset, because the new alignment may 342c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman // not be applicable with the old ones. 343c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman V = MMO->getValue(); 344c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman Offset = MMO->getOffset(); 345c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman } 346c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman} 347c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman 3484b2ebc19288491cb068f268c311d9fef0ec6a29fDan Gohman/// getAlignment - Return the minimum known alignment in bytes of the 3494b2ebc19288491cb068f268c311d9fef0ec6a29fDan Gohman/// actual memory reference. 3504b2ebc19288491cb068f268c311d9fef0ec6a29fDan Gohmanuint64_t MachineMemOperand::getAlignment() const { 3514b2ebc19288491cb068f268c311d9fef0ec6a29fDan Gohman return MinAlign(getBaseAlignment(), getOffset()); 3524b2ebc19288491cb068f268c311d9fef0ec6a29fDan Gohman} 3534b2ebc19288491cb068f268c311d9fef0ec6a29fDan Gohman 354c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohmanraw_ostream &llvm::operator<<(raw_ostream &OS, const MachineMemOperand &MMO) { 355c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman assert((MMO.isLoad() || MMO.isStore()) && 356cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman "SV has to be a load, store or both."); 357cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman 358c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman if (MMO.isVolatile()) 359cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman OS << "Volatile "; 360cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman 361c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman if (MMO.isLoad()) 362cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman OS << "LD"; 363c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman if (MMO.isStore()) 364cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman OS << "ST"; 365c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman OS << MMO.getSize(); 366cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman 367cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman // Print the address information. 368cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman OS << "["; 369c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman if (!MMO.getValue()) 370cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman OS << "<unknown>"; 371cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman else 372c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman WriteAsOperand(OS, MMO.getValue(), /*PrintType=*/false); 373cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman 374cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman // If the alignment of the memory reference itself differs from the alignment 375cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman // of the base pointer, print the base alignment explicitly, next to the base 376cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman // pointer. 377c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman if (MMO.getBaseAlignment() != MMO.getAlignment()) 378c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman OS << "(align=" << MMO.getBaseAlignment() << ")"; 379cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman 380c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman if (MMO.getOffset() != 0) 381c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman OS << "+" << MMO.getOffset(); 382cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman OS << "]"; 383cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman 384cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman // Print the alignment of the reference. 385c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman if (MMO.getBaseAlignment() != MMO.getAlignment() || 386c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman MMO.getBaseAlignment() != MMO.getSize()) 387c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman OS << "(align=" << MMO.getAlignment() << ")"; 388cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman 389cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman return OS; 390cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman} 391cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman 392ce42e404a26454f4332c2c350c75ad27bbbb16f7Dan Gohman//===----------------------------------------------------------------------===// 393f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner// MachineInstr Implementation 394f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner//===----------------------------------------------------------------------===// 395f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner 396c0f64ffab93d11fb27a3b8a0707b77400918a20eEvan Cheng/// MachineInstr ctor - This constructor creates a dummy MachineInstr with 39767f660cb080965ea93ed6d7265a67100f2fe38e4Evan Cheng/// TID NULL and no operands. 398c0f64ffab93d11fb27a3b8a0707b77400918a20eEvan ChengMachineInstr::MachineInstr() 399834651c94535bfb054449e6c01d5c77ab7a117d3Dan Gohman : TID(0), NumImplicitOps(0), AsmPrinterFlags(0), MemRefs(0), MemRefsEnd(0), 400a4f2bb08de92ccec21cbb3d0a9518384b0173660Chris Lattner Parent(0) { 4012c3f7ae3843bdc9dcfe85393e178211976c1f9bdDan Gohman // Make sure that we get added to a machine basicblock 4022c3f7ae3843bdc9dcfe85393e178211976c1f9bdDan Gohman LeakDetector::addGarbageObject(this); 4037279122e668816bed0d4f38d3392bbab0140fad0Chris Lattner} 4047279122e668816bed0d4f38d3392bbab0140fad0Chris Lattner 40567f660cb080965ea93ed6d7265a67100f2fe38e4Evan Chengvoid MachineInstr::addImplicitDefUseOperands() { 40667f660cb080965ea93ed6d7265a67100f2fe38e4Evan Cheng if (TID->ImplicitDefs) 407a4161ee99478e7f8f9e33481e1c0dc79f0b4bd7dChris Lattner for (const unsigned *ImpDefs = TID->ImplicitDefs; *ImpDefs; ++ImpDefs) 4088019f41c0b7fda031d494e3900eada7d4e494772Chris Lattner addOperand(MachineOperand::CreateReg(*ImpDefs, true, true)); 40967f660cb080965ea93ed6d7265a67100f2fe38e4Evan Cheng if (TID->ImplicitUses) 410a4161ee99478e7f8f9e33481e1c0dc79f0b4bd7dChris Lattner for (const unsigned *ImpUses = TID->ImplicitUses; *ImpUses; ++ImpUses) 4118019f41c0b7fda031d494e3900eada7d4e494772Chris Lattner addOperand(MachineOperand::CreateReg(*ImpUses, false, true)); 412d7de496b23fca8145f777a56281457bf64e8bbadEvan Cheng} 413d7de496b23fca8145f777a56281457bf64e8bbadEvan Cheng 4140855cadb00c598d4e78c8f1842a9c1b9bf19c667Bob Wilson/// MachineInstr ctor - This constructor creates a MachineInstr and adds the 4150855cadb00c598d4e78c8f1842a9c1b9bf19c667Bob Wilson/// implicit operands. It reserves space for the number of operands specified by 4160855cadb00c598d4e78c8f1842a9c1b9bf19c667Bob Wilson/// the TargetInstrDesc. 417749c6f6b5ed301c84aac562e414486549d7b98ebChris LattnerMachineInstr::MachineInstr(const TargetInstrDesc &tid, bool NoImp) 418834651c94535bfb054449e6c01d5c77ab7a117d3Dan Gohman : TID(&tid), NumImplicitOps(0), AsmPrinterFlags(0), 419a4f2bb08de92ccec21cbb3d0a9518384b0173660Chris Lattner MemRefs(0), MemRefsEnd(0), Parent(0) { 4201793ab9e70c48146a5f1592b84b2b93e38c67fa4Bob Wilson if (!NoImp) 4211793ab9e70c48146a5f1592b84b2b93e38c67fa4Bob Wilson NumImplicitOps = TID->getNumImplicitDefs() + TID->getNumImplicitUses(); 422349c4952009525b27383e2120a6b3c998f39bd09Chris Lattner Operands.reserve(NumImplicitOps + TID->getNumOperands()); 423fa9457276a2174aaf302240dd32d89900ad021aeEvan Cheng if (!NoImp) 424fa9457276a2174aaf302240dd32d89900ad021aeEvan Cheng addImplicitDefUseOperands(); 4252c3f7ae3843bdc9dcfe85393e178211976c1f9bdDan Gohman // Make sure that we get added to a machine basicblock 4262c3f7ae3843bdc9dcfe85393e178211976c1f9bdDan Gohman LeakDetector::addGarbageObject(this); 427d7de496b23fca8145f777a56281457bf64e8bbadEvan Cheng} 428d7de496b23fca8145f777a56281457bf64e8bbadEvan Cheng 42906efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen/// MachineInstr ctor - As above, but with a DebugLoc. 43006efc02854a96a9f92edc3bf46b0451f488cf2e6Dale JohannesenMachineInstr::MachineInstr(const TargetInstrDesc &tid, const DebugLoc dl, 43106efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen bool NoImp) 432834651c94535bfb054449e6c01d5c77ab7a117d3Dan Gohman : TID(&tid), NumImplicitOps(0), AsmPrinterFlags(0), MemRefs(0), MemRefsEnd(0), 433c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman Parent(0), debugLoc(dl) { 4341793ab9e70c48146a5f1592b84b2b93e38c67fa4Bob Wilson if (!NoImp) 4351793ab9e70c48146a5f1592b84b2b93e38c67fa4Bob Wilson NumImplicitOps = TID->getNumImplicitDefs() + TID->getNumImplicitUses(); 43606efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen Operands.reserve(NumImplicitOps + TID->getNumOperands()); 43706efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen if (!NoImp) 43806efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen addImplicitDefUseOperands(); 43906efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen // Make sure that we get added to a machine basicblock 44006efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen LeakDetector::addGarbageObject(this); 44106efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen} 44206efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen 44306efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen/// MachineInstr ctor - Work exactly the same as the ctor two above, except 44406efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen/// that the MachineInstr is created and added to the end of the specified 44506efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen/// basic block. 44606efc02854a96a9f92edc3bf46b0451f488cf2e6Dale JohannesenMachineInstr::MachineInstr(MachineBasicBlock *MBB, const TargetInstrDesc &tid) 447834651c94535bfb054449e6c01d5c77ab7a117d3Dan Gohman : TID(&tid), NumImplicitOps(0), AsmPrinterFlags(0), 448a4f2bb08de92ccec21cbb3d0a9518384b0173660Chris Lattner MemRefs(0), MemRefsEnd(0), Parent(0) { 44906efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen assert(MBB && "Cannot use inserting ctor with null basic block!"); 4501793ab9e70c48146a5f1592b84b2b93e38c67fa4Bob Wilson NumImplicitOps = TID->getNumImplicitDefs() + TID->getNumImplicitUses(); 45106efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen Operands.reserve(NumImplicitOps + TID->getNumOperands()); 45206efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen addImplicitDefUseOperands(); 45306efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen // Make sure that we get added to a machine basicblock 45406efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen LeakDetector::addGarbageObject(this); 45506efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen MBB->push_back(this); // Add instruction to end of basic block! 45606efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen} 45706efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen 45806efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen/// MachineInstr ctor - As above, but with a DebugLoc. 459ddd7fcb887be752ec8167276a697994ad9cb9c4eChris Lattner/// 46006efc02854a96a9f92edc3bf46b0451f488cf2e6Dale JohannesenMachineInstr::MachineInstr(MachineBasicBlock *MBB, const DebugLoc dl, 461749c6f6b5ed301c84aac562e414486549d7b98ebChris Lattner const TargetInstrDesc &tid) 462834651c94535bfb054449e6c01d5c77ab7a117d3Dan Gohman : TID(&tid), NumImplicitOps(0), AsmPrinterFlags(0), MemRefs(0), MemRefsEnd(0), 463c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman Parent(0), debugLoc(dl) { 464ddd7fcb887be752ec8167276a697994ad9cb9c4eChris Lattner assert(MBB && "Cannot use inserting ctor with null basic block!"); 4651793ab9e70c48146a5f1592b84b2b93e38c67fa4Bob Wilson NumImplicitOps = TID->getNumImplicitDefs() + TID->getNumImplicitUses(); 466349c4952009525b27383e2120a6b3c998f39bd09Chris Lattner Operands.reserve(NumImplicitOps + TID->getNumOperands()); 46767f660cb080965ea93ed6d7265a67100f2fe38e4Evan Cheng addImplicitDefUseOperands(); 4682c3f7ae3843bdc9dcfe85393e178211976c1f9bdDan Gohman // Make sure that we get added to a machine basicblock 4692c3f7ae3843bdc9dcfe85393e178211976c1f9bdDan Gohman LeakDetector::addGarbageObject(this); 470ddd7fcb887be752ec8167276a697994ad9cb9c4eChris Lattner MBB->push_back(this); // Add instruction to end of basic block! 471ddd7fcb887be752ec8167276a697994ad9cb9c4eChris Lattner} 472ddd7fcb887be752ec8167276a697994ad9cb9c4eChris Lattner 473ce22e76996d3ff0930716fa60c29df60a7e0481bMisha Brukman/// MachineInstr ctor - Copies MachineInstr arg exactly 474ce22e76996d3ff0930716fa60c29df60a7e0481bMisha Brukman/// 4751ed9922794cda9dbe295e74674b909287e544632Evan ChengMachineInstr::MachineInstr(MachineFunction &MF, const MachineInstr &MI) 476834651c94535bfb054449e6c01d5c77ab7a117d3Dan Gohman : TID(&MI.getDesc()), NumImplicitOps(0), AsmPrinterFlags(0), 477c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman MemRefs(MI.MemRefs), MemRefsEnd(MI.MemRefsEnd), 478c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman Parent(0), debugLoc(MI.getDebugLoc()) { 479943b5e117fe9a087f9aa529a2632c2d32cc22374Chris Lattner Operands.reserve(MI.getNumOperands()); 480b5159ed0cb7943e5938782f7693beb18342165ceTanya Lattner 481ce22e76996d3ff0930716fa60c29df60a7e0481bMisha Brukman // Add operands 4821ed9922794cda9dbe295e74674b909287e544632Evan Cheng for (unsigned i = 0; i != MI.getNumOperands(); ++i) 4831ed9922794cda9dbe295e74674b909287e544632Evan Cheng addOperand(MI.getOperand(i)); 4841ed9922794cda9dbe295e74674b909287e544632Evan Cheng NumImplicitOps = MI.NumImplicitOps; 4850c63e03e04d3982e1913479bba404c3debc9a27eTanya Lattner 4868e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman // Set parent to null. 487f20c1a497fe3922ac718429d65a5fe396890575eChris Lattner Parent = 0; 4886116a73da420d9b414a34ce2599dc7f6476e23fcDan Gohman 4896116a73da420d9b414a34ce2599dc7f6476e23fcDan Gohman LeakDetector::addGarbageObject(this); 490466b534a570f574ed485d875bbca8454f68dcb52Tanya Lattner} 491466b534a570f574ed485d875bbca8454f68dcb52Tanya Lattner 492ce22e76996d3ff0930716fa60c29df60a7e0481bMisha BrukmanMachineInstr::~MachineInstr() { 4932c3f7ae3843bdc9dcfe85393e178211976c1f9bdDan Gohman LeakDetector::removeGarbageObject(this); 494e12d6abfdfc5141b2001f0c369a0e1525315b9c0Chris Lattner#ifndef NDEBUG 49562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner for (unsigned i = 0, e = Operands.size(); i != e; ++i) { 496e12d6abfdfc5141b2001f0c369a0e1525315b9c0Chris Lattner assert(Operands[i].ParentMI == this && "ParentMI mismatch!"); 497d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman assert((!Operands[i].isReg() || !Operands[i].isOnRegUseList()) && 49862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner "Reg operand def/use list corrupted"); 49962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 500e12d6abfdfc5141b2001f0c369a0e1525315b9c0Chris Lattner#endif 501aad5c0505183a5b7913f1a443a1f0650122551ccAlkis Evlogimenos} 502aad5c0505183a5b7913f1a443a1f0650122551ccAlkis Evlogimenos 50362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// getRegInfo - If this instruction is embedded into a MachineFunction, 50462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// return the MachineRegisterInfo object for the current function, otherwise 50562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// return null. 50662ed6b9ade63bf01717ce5274fa11e93e873d245Chris LattnerMachineRegisterInfo *MachineInstr::getRegInfo() { 50762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (MachineBasicBlock *MBB = getParent()) 5084e526b9a5b36d9bac170c03df0a5d6fb76740ae2Dan Gohman return &MBB->getParent()->getRegInfo(); 50962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner return 0; 51062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner} 51162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 51262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// RemoveRegOperandsFromUseLists - Unlink all of the register operands in 51362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// this instruction from their respective use lists. This requires that the 51462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// operands already be on their use lists. 51562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattnervoid MachineInstr::RemoveRegOperandsFromUseLists() { 51662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner for (unsigned i = 0, e = Operands.size(); i != e; ++i) { 517d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (Operands[i].isReg()) 51862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands[i].RemoveRegOperandFromRegInfo(); 51962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 52062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner} 52162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 52262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// AddRegOperandsToUseLists - Add all of the register operands in 52362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// this instruction from their respective use lists. This requires that the 52462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// operands not be on their use lists yet. 52562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattnervoid MachineInstr::AddRegOperandsToUseLists(MachineRegisterInfo &RegInfo) { 52662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner for (unsigned i = 0, e = Operands.size(); i != e; ++i) { 527d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (Operands[i].isReg()) 52862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands[i].AddRegOperandToRegInfo(&RegInfo); 52962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 53062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner} 53162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 53262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 53362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// addOperand - Add the specified operand to the instruction. If it is an 53462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// implicit operand, it is added to the end of the operand list. If it is 53562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// an explicit operand it is added at the end of the explicit operand list 53662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// (before the first implicit operand). 53762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattnervoid MachineInstr::addOperand(const MachineOperand &Op) { 538d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman bool isImpReg = Op.isReg() && Op.isImplicit(); 53962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner assert((isImpReg || !OperandsComplete()) && 54062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner "Trying to add an operand to a machine instr that is already done!"); 54162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 542bcf28c08b3f0a3c4aa1be8f1485f6452d9a2b690Dan Gohman MachineRegisterInfo *RegInfo = getRegInfo(); 543bcf28c08b3f0a3c4aa1be8f1485f6452d9a2b690Dan Gohman 54462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // If we are adding the operand to the end of the list, our job is simpler. 54562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // This is true most of the time, so this is a reasonable optimization. 54662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (isImpReg || NumImplicitOps == 0) { 54762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // We can only do this optimization if we know that the operand list won't 54862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // reallocate. 54962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (Operands.empty() || Operands.size()+1 <= Operands.capacity()) { 55062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands.push_back(Op); 55162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 55262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Set the parent of the operand. 55362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands.back().ParentMI = this; 55462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 55562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // If the operand is a register, update the operand's use list. 55606801722a43c697eff0acee905de6b50257ce19bJim Grosbach if (Op.isReg()) { 557bcf28c08b3f0a3c4aa1be8f1485f6452d9a2b690Dan Gohman Operands.back().AddRegOperandToRegInfo(RegInfo); 55806801722a43c697eff0acee905de6b50257ce19bJim Grosbach // If the register operand is flagged as early, mark the operand as such 55906801722a43c697eff0acee905de6b50257ce19bJim Grosbach unsigned OpNo = Operands.size() - 1; 56006801722a43c697eff0acee905de6b50257ce19bJim Grosbach if (TID->getOperandConstraint(OpNo, TOI::EARLY_CLOBBER) != -1) 56106801722a43c697eff0acee905de6b50257ce19bJim Grosbach Operands[OpNo].setIsEarlyClobber(true); 56206801722a43c697eff0acee905de6b50257ce19bJim Grosbach } 56362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner return; 56462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 56562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 56662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 56762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Otherwise, we have to insert a real operand before any implicit ones. 56862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner unsigned OpNo = Operands.size()-NumImplicitOps; 56962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 57062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // If this instruction isn't embedded into a function, then we don't need to 57162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // update any operand lists. 57262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (RegInfo == 0) { 57362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Simple insertion, no reginfo update needed for other register operands. 57462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands.insert(Operands.begin()+OpNo, Op); 57562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands[OpNo].ParentMI = this; 57662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 57762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Do explicitly set the reginfo for this operand though, to ensure the 57862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // next/prev fields are properly nulled out. 57906801722a43c697eff0acee905de6b50257ce19bJim Grosbach if (Operands[OpNo].isReg()) { 58062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands[OpNo].AddRegOperandToRegInfo(0); 58106801722a43c697eff0acee905de6b50257ce19bJim Grosbach // If the register operand is flagged as early, mark the operand as such 58206801722a43c697eff0acee905de6b50257ce19bJim Grosbach if (TID->getOperandConstraint(OpNo, TOI::EARLY_CLOBBER) != -1) 58306801722a43c697eff0acee905de6b50257ce19bJim Grosbach Operands[OpNo].setIsEarlyClobber(true); 58406801722a43c697eff0acee905de6b50257ce19bJim Grosbach } 58562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 58662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } else if (Operands.size()+1 <= Operands.capacity()) { 58762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Otherwise, we have to remove register operands from their register use 58862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // list, add the operand, then add the register operands back to their use 58962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // list. This also must handle the case when the operand list reallocates 59062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // to somewhere else. 59162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 59262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // If insertion of this operand won't cause reallocation of the operand 59362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // list, just remove the implicit operands, add the operand, then re-add all 59462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // the rest of the operands. 59562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner for (unsigned i = OpNo, e = Operands.size(); i != e; ++i) { 596d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman assert(Operands[i].isReg() && "Should only be an implicit reg!"); 59762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands[i].RemoveRegOperandFromRegInfo(); 59862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 59962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 60062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Add the operand. If it is a register, add it to the reg list. 60162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands.insert(Operands.begin()+OpNo, Op); 60262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands[OpNo].ParentMI = this; 60362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 60406801722a43c697eff0acee905de6b50257ce19bJim Grosbach if (Operands[OpNo].isReg()) { 60562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands[OpNo].AddRegOperandToRegInfo(RegInfo); 60606801722a43c697eff0acee905de6b50257ce19bJim Grosbach // If the register operand is flagged as early, mark the operand as such 60706801722a43c697eff0acee905de6b50257ce19bJim Grosbach if (TID->getOperandConstraint(OpNo, TOI::EARLY_CLOBBER) != -1) 60806801722a43c697eff0acee905de6b50257ce19bJim Grosbach Operands[OpNo].setIsEarlyClobber(true); 60906801722a43c697eff0acee905de6b50257ce19bJim Grosbach } 61062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 61162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Re-add all the implicit ops. 61262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner for (unsigned i = OpNo+1, e = Operands.size(); i != e; ++i) { 613d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman assert(Operands[i].isReg() && "Should only be an implicit reg!"); 61462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands[i].AddRegOperandToRegInfo(RegInfo); 61562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 61662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } else { 61762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Otherwise, we will be reallocating the operand list. Remove all reg 61862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // operands from their list, then readd them after the operand list is 61962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // reallocated. 62062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner RemoveRegOperandsFromUseLists(); 62162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 62262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands.insert(Operands.begin()+OpNo, Op); 62362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands[OpNo].ParentMI = this; 62462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 62562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Re-add all the operands. 62662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner AddRegOperandsToUseLists(*RegInfo); 62706801722a43c697eff0acee905de6b50257ce19bJim Grosbach 62806801722a43c697eff0acee905de6b50257ce19bJim Grosbach // If the register operand is flagged as early, mark the operand as such 62906801722a43c697eff0acee905de6b50257ce19bJim Grosbach if (Operands[OpNo].isReg() 63006801722a43c697eff0acee905de6b50257ce19bJim Grosbach && TID->getOperandConstraint(OpNo, TOI::EARLY_CLOBBER) != -1) 63106801722a43c697eff0acee905de6b50257ce19bJim Grosbach Operands[OpNo].setIsEarlyClobber(true); 63262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 63362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner} 63462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 63562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// RemoveOperand - Erase an operand from an instruction, leaving it with one 63662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// fewer operand than it started with. 63762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// 63862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattnervoid MachineInstr::RemoveOperand(unsigned OpNo) { 63962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner assert(OpNo < Operands.size() && "Invalid operand number"); 64062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 64162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Special case removing the last one. 64262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (OpNo == Operands.size()-1) { 64362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // If needed, remove from the reg def/use list. 644d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (Operands.back().isReg() && Operands.back().isOnRegUseList()) 64562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands.back().RemoveRegOperandFromRegInfo(); 64662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 64762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands.pop_back(); 64862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner return; 64962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 65062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 65162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Otherwise, we are removing an interior operand. If we have reginfo to 65262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // update, remove all operands that will be shifted down from their reg lists, 65362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // move everything down, then re-add them. 65462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner MachineRegisterInfo *RegInfo = getRegInfo(); 65562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (RegInfo) { 65662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner for (unsigned i = OpNo, e = Operands.size(); i != e; ++i) { 657d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (Operands[i].isReg()) 65862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands[i].RemoveRegOperandFromRegInfo(); 65962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 66062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 66162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 66262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands.erase(Operands.begin()+OpNo); 66362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 66462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (RegInfo) { 66562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner for (unsigned i = OpNo, e = Operands.size(); i != e; ++i) { 666d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (Operands[i].isReg()) 66762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands[i].AddRegOperandToRegInfo(RegInfo); 66862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 66962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 67062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner} 67162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 672c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman/// addMemOperand - Add a MachineMemOperand to the machine instruction. 673c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman/// This function should be used only occasionally. The setMemRefs function 674c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman/// is the primary method for setting up a MachineInstr's MemRefs list. 6758e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohmanvoid MachineInstr::addMemOperand(MachineFunction &MF, 676c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman MachineMemOperand *MO) { 677c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman mmo_iterator OldMemRefs = MemRefs; 678c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman mmo_iterator OldMemRefsEnd = MemRefsEnd; 6798e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman 680c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman size_t NewNum = (MemRefsEnd - MemRefs) + 1; 681c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman mmo_iterator NewMemRefs = MF.allocateMemRefsArray(NewNum); 682c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman mmo_iterator NewMemRefsEnd = NewMemRefs + NewNum; 6838e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman 684c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman std::copy(OldMemRefs, OldMemRefsEnd, NewMemRefs); 685c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman NewMemRefs[NewNum - 1] = MO; 686c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman 687c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman MemRefs = NewMemRefs; 688c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman MemRefsEnd = NewMemRefsEnd; 689c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman} 69062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 691506049f29f4f202a8e45feb916cc0264440a7f6dEvan Chengbool MachineInstr::isIdenticalTo(const MachineInstr *Other, 692506049f29f4f202a8e45feb916cc0264440a7f6dEvan Cheng MICheckType Check) const { 69334cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng // If opcodes or number of operands are not the same then the two 69434cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng // instructions are obviously not identical. 69534cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng if (Other->getOpcode() != getOpcode() || 69634cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng Other->getNumOperands() != getNumOperands()) 69734cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng return false; 69834cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng 69934cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng // Check operands to make sure they match. 70034cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 70134cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng const MachineOperand &MO = getOperand(i); 70234cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng const MachineOperand &OMO = Other->getOperand(i); 70334cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng // Clients may or may not want to ignore defs when testing for equality. 70434cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng // For example, machine CSE pass only cares about finding common 70534cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng // subexpressions, so it's safe to ignore virtual register defs. 70634cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng if (Check != CheckDefs && MO.isReg() && MO.isDef()) { 70734cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng if (Check == IgnoreDefs) 70834cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng continue; 70934cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng // Check == IgnoreVRegDefs 71034cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng if (TargetRegisterInfo::isPhysicalRegister(MO.getReg()) || 71134cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng TargetRegisterInfo::isPhysicalRegister(OMO.getReg())) 71234cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng if (MO.getReg() != OMO.getReg()) 71334cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng return false; 71434cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng } else if (!MO.isIdenticalTo(OMO)) 715506049f29f4f202a8e45feb916cc0264440a7f6dEvan Cheng return false; 71634cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng } 71734cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng return true; 718506049f29f4f202a8e45feb916cc0264440a7f6dEvan Cheng} 719506049f29f4f202a8e45feb916cc0264440a7f6dEvan Cheng 72048d7c069c76882475c23de153bda9483cd3c9bb4Chris Lattner/// removeFromParent - This method unlinks 'this' from the containing basic 72148d7c069c76882475c23de153bda9483cd3c9bb4Chris Lattner/// block, and returns it, but does not delete it. 72248d7c069c76882475c23de153bda9483cd3c9bb4Chris LattnerMachineInstr *MachineInstr::removeFromParent() { 72348d7c069c76882475c23de153bda9483cd3c9bb4Chris Lattner assert(getParent() && "Not embedded in a basic block!"); 72448d7c069c76882475c23de153bda9483cd3c9bb4Chris Lattner getParent()->remove(this); 72548d7c069c76882475c23de153bda9483cd3c9bb4Chris Lattner return this; 72648d7c069c76882475c23de153bda9483cd3c9bb4Chris Lattner} 72748d7c069c76882475c23de153bda9483cd3c9bb4Chris Lattner 72848d7c069c76882475c23de153bda9483cd3c9bb4Chris Lattner 7298e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman/// eraseFromParent - This method unlinks 'this' from the containing basic 7308e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman/// block, and deletes it. 7318e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohmanvoid MachineInstr::eraseFromParent() { 7328e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman assert(getParent() && "Not embedded in a basic block!"); 7338e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman getParent()->erase(this); 7348e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman} 7358e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman 7368e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman 73721326fc2ad47ee7e73a8c0b03a4a0cc0b0a0c4e8Brian Gaeke/// OperandComplete - Return true if it's illegal to add a new operand 73821326fc2ad47ee7e73a8c0b03a4a0cc0b0a0c4e8Brian Gaeke/// 7392a90ba60175f93e7438165d8423100aa573c16c5Chris Lattnerbool MachineInstr::OperandsComplete() const { 740349c4952009525b27383e2120a6b3c998f39bd09Chris Lattner unsigned short NumOperands = TID->getNumOperands(); 7418f707e15fbd09ca948b86419bcb0c92470827ac9Chris Lattner if (!TID->isVariadic() && getNumOperands()-NumImplicitOps >= NumOperands) 7423497782f3843007de3be0c43e3ff206a01e2ccacVikram S. Adve return true; // Broken: we have all the operands of this instruction! 743413746e9833d97a8b463ef6a788aa326cf3829a2Chris Lattner return false; 74470bc4b5d1a3795a8f41be96723cfcbccac8e1671Vikram S. Adve} 74570bc4b5d1a3795a8f41be96723cfcbccac8e1671Vikram S. Adve 74619e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng/// getNumExplicitOperands - Returns the number of non-implicit operands. 74719e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng/// 74819e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Chengunsigned MachineInstr::getNumExplicitOperands() const { 749349c4952009525b27383e2120a6b3c998f39bd09Chris Lattner unsigned NumOperands = TID->getNumOperands(); 7508f707e15fbd09ca948b86419bcb0c92470827ac9Chris Lattner if (!TID->isVariadic()) 75119e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng return NumOperands; 75219e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng 7539407cd4ede3e2c090b958778d0fdbdac8b2dbec4Dan Gohman for (unsigned i = NumOperands, e = getNumOperands(); i != e; ++i) { 7549407cd4ede3e2c090b958778d0fdbdac8b2dbec4Dan Gohman const MachineOperand &MO = getOperand(i); 755d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (!MO.isReg() || !MO.isImplicit()) 75619e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng NumOperands++; 75719e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng } 75819e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng return NumOperands; 75919e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng} 76019e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng 7618ace2cd034be10c09be51daf08c3dda327f54262Chris Lattner 762faa510726f4b40aa4495e60e4d341c6467e3fb01Evan Cheng/// findRegisterUseOperandIdx() - Returns the MachineOperand that is a use of 763f9ca50e3dce88b2f9e2f2f0cac2d3ed78afda841Jim Grosbach/// the specific register or -1 if it is not found. It further tightens 76476d7e76c15c258ec4a71fd75a2a32bca3a5e5e27Evan Cheng/// the search criteria to a use that kills the register if isKill is true. 7656130f66eaae89f8878590796977678afa8448926Evan Chengint MachineInstr::findRegisterUseOperandIdx(unsigned Reg, bool isKill, 7666130f66eaae89f8878590796977678afa8448926Evan Cheng const TargetRegisterInfo *TRI) const { 767576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 768f277ee4be7edabb759a7f78138b693d72d0c263fEvan Cheng const MachineOperand &MO = getOperand(i); 769d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (!MO.isReg() || !MO.isUse()) 7706130f66eaae89f8878590796977678afa8448926Evan Cheng continue; 7716130f66eaae89f8878590796977678afa8448926Evan Cheng unsigned MOReg = MO.getReg(); 7726130f66eaae89f8878590796977678afa8448926Evan Cheng if (!MOReg) 7736130f66eaae89f8878590796977678afa8448926Evan Cheng continue; 7746130f66eaae89f8878590796977678afa8448926Evan Cheng if (MOReg == Reg || 7756130f66eaae89f8878590796977678afa8448926Evan Cheng (TRI && 7766130f66eaae89f8878590796977678afa8448926Evan Cheng TargetRegisterInfo::isPhysicalRegister(MOReg) && 7776130f66eaae89f8878590796977678afa8448926Evan Cheng TargetRegisterInfo::isPhysicalRegister(Reg) && 7786130f66eaae89f8878590796977678afa8448926Evan Cheng TRI->isSubRegister(MOReg, Reg))) 77976d7e76c15c258ec4a71fd75a2a32bca3a5e5e27Evan Cheng if (!isKill || MO.isKill()) 78032eb1f1ca4220d2f24916e587ad7e8574d7d82a1Evan Cheng return i; 781b371f457b0ea4a652a9f526ba4375c80ae542252Evan Cheng } 78232eb1f1ca4220d2f24916e587ad7e8574d7d82a1Evan Cheng return -1; 783b371f457b0ea4a652a9f526ba4375c80ae542252Evan Cheng} 7847ebc4d63db05ac214d36bc01b4d60adadaf923e5Jakob Stoklund Olesen 78518b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesen/// readsWritesVirtualRegister - Return a pair of bools (reads, writes) 78618b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesen/// indicating if this instruction reads or writes Reg. This also considers 78718b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesen/// partial defines. 78818b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesenstd::pair<bool,bool> 78918b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund OlesenMachineInstr::readsWritesVirtualRegister(unsigned Reg, 79018b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesen SmallVectorImpl<unsigned> *Ops) const { 79118b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesen bool PartDef = false; // Partial redefine. 79218b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesen bool FullDef = false; // Full define. 79318b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesen bool Use = false; 7947ebc4d63db05ac214d36bc01b4d60adadaf923e5Jakob Stoklund Olesen 7957ebc4d63db05ac214d36bc01b4d60adadaf923e5Jakob Stoklund Olesen for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 7967ebc4d63db05ac214d36bc01b4d60adadaf923e5Jakob Stoklund Olesen const MachineOperand &MO = getOperand(i); 7977ebc4d63db05ac214d36bc01b4d60adadaf923e5Jakob Stoklund Olesen if (!MO.isReg() || MO.getReg() != Reg) 7987ebc4d63db05ac214d36bc01b4d60adadaf923e5Jakob Stoklund Olesen continue; 79918b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesen if (Ops) 80018b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesen Ops->push_back(i); 8017ebc4d63db05ac214d36bc01b4d60adadaf923e5Jakob Stoklund Olesen if (MO.isUse()) 80218b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesen Use |= !MO.isUndef(); 80318b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesen else if (MO.getSubReg()) 8047ebc4d63db05ac214d36bc01b4d60adadaf923e5Jakob Stoklund Olesen PartDef = true; 8057ebc4d63db05ac214d36bc01b4d60adadaf923e5Jakob Stoklund Olesen else 8067ebc4d63db05ac214d36bc01b4d60adadaf923e5Jakob Stoklund Olesen FullDef = true; 8077ebc4d63db05ac214d36bc01b4d60adadaf923e5Jakob Stoklund Olesen } 80818b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesen // A partial redefine uses Reg unless there is also a full define. 80918b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesen return std::make_pair(Use || (PartDef && !FullDef), PartDef || FullDef); 8107ebc4d63db05ac214d36bc01b4d60adadaf923e5Jakob Stoklund Olesen} 8117ebc4d63db05ac214d36bc01b4d60adadaf923e5Jakob Stoklund Olesen 8126130f66eaae89f8878590796977678afa8448926Evan Cheng/// findRegisterDefOperandIdx() - Returns the operand index that is a def of 813703bfe69092e8da79fbef2fc5ca07b805ad9f753Dan Gohman/// the specified register or -1 if it is not found. If isDead is true, defs 814703bfe69092e8da79fbef2fc5ca07b805ad9f753Dan Gohman/// that are not dead are skipped. If TargetRegisterInfo is non-null, then it 815703bfe69092e8da79fbef2fc5ca07b805ad9f753Dan Gohman/// also checks if there is a def of a super-register. 8161015ba7018c87f48cc7bb45a564eb4a27241e76aEvan Chengint 8171015ba7018c87f48cc7bb45a564eb4a27241e76aEvan ChengMachineInstr::findRegisterDefOperandIdx(unsigned Reg, bool isDead, bool Overlap, 8181015ba7018c87f48cc7bb45a564eb4a27241e76aEvan Cheng const TargetRegisterInfo *TRI) const { 8191015ba7018c87f48cc7bb45a564eb4a27241e76aEvan Cheng bool isPhys = TargetRegisterInfo::isPhysicalRegister(Reg); 820b371f457b0ea4a652a9f526ba4375c80ae542252Evan Cheng for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 8216130f66eaae89f8878590796977678afa8448926Evan Cheng const MachineOperand &MO = getOperand(i); 822d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (!MO.isReg() || !MO.isDef()) 8236130f66eaae89f8878590796977678afa8448926Evan Cheng continue; 8246130f66eaae89f8878590796977678afa8448926Evan Cheng unsigned MOReg = MO.getReg(); 8251015ba7018c87f48cc7bb45a564eb4a27241e76aEvan Cheng bool Found = (MOReg == Reg); 8261015ba7018c87f48cc7bb45a564eb4a27241e76aEvan Cheng if (!Found && TRI && isPhys && 8271015ba7018c87f48cc7bb45a564eb4a27241e76aEvan Cheng TargetRegisterInfo::isPhysicalRegister(MOReg)) { 8281015ba7018c87f48cc7bb45a564eb4a27241e76aEvan Cheng if (Overlap) 8291015ba7018c87f48cc7bb45a564eb4a27241e76aEvan Cheng Found = TRI->regsOverlap(MOReg, Reg); 8301015ba7018c87f48cc7bb45a564eb4a27241e76aEvan Cheng else 8311015ba7018c87f48cc7bb45a564eb4a27241e76aEvan Cheng Found = TRI->isSubRegister(MOReg, Reg); 8321015ba7018c87f48cc7bb45a564eb4a27241e76aEvan Cheng } 8331015ba7018c87f48cc7bb45a564eb4a27241e76aEvan Cheng if (Found && (!isDead || MO.isDead())) 8341015ba7018c87f48cc7bb45a564eb4a27241e76aEvan Cheng return i; 835576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng } 8366130f66eaae89f8878590796977678afa8448926Evan Cheng return -1; 837576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng} 83819e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng 839f277ee4be7edabb759a7f78138b693d72d0c263fEvan Cheng/// findFirstPredOperandIdx() - Find the index of the first operand in the 840f277ee4be7edabb759a7f78138b693d72d0c263fEvan Cheng/// operand list that is used to represent the predicate. It returns -1 if 841f277ee4be7edabb759a7f78138b693d72d0c263fEvan Cheng/// none is found. 842f277ee4be7edabb759a7f78138b693d72d0c263fEvan Chengint MachineInstr::findFirstPredOperandIdx() const { 843749c6f6b5ed301c84aac562e414486549d7b98ebChris Lattner const TargetInstrDesc &TID = getDesc(); 844749c6f6b5ed301c84aac562e414486549d7b98ebChris Lattner if (TID.isPredicable()) { 84519e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng for (unsigned i = 0, e = getNumOperands(); i != e; ++i) 846749c6f6b5ed301c84aac562e414486549d7b98ebChris Lattner if (TID.OpInfo[i].isPredicate()) 847f277ee4be7edabb759a7f78138b693d72d0c263fEvan Cheng return i; 84819e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng } 84919e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng 850f277ee4be7edabb759a7f78138b693d72d0c263fEvan Cheng return -1; 85119e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng} 852576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng 853d9df5017040489303acb57bdd8697ef0f8bafc08Bob Wilson/// isRegTiedToUseOperand - Given the index of a register def operand, 854d9df5017040489303acb57bdd8697ef0f8bafc08Bob Wilson/// check if the register def is tied to a source operand, due to either 855d9df5017040489303acb57bdd8697ef0f8bafc08Bob Wilson/// two-address elimination or inline assembly constraints. Returns the 856d9df5017040489303acb57bdd8697ef0f8bafc08Bob Wilson/// first tied use operand index by reference is UseOpIdx is not null. 857ce9be2cf5dc84865f6b819bd3f9be16944426268Jakob Stoklund Olesenbool MachineInstr:: 858ce9be2cf5dc84865f6b819bd3f9be16944426268Jakob Stoklund OlesenisRegTiedToUseOperand(unsigned DefOpIdx, unsigned *UseOpIdx) const { 859518bb53485df640d7b7e3f6b0544099020c42aa7Chris Lattner if (isInlineAsm()) { 860d9df5017040489303acb57bdd8697ef0f8bafc08Bob Wilson assert(DefOpIdx >= 2); 861d9df5017040489303acb57bdd8697ef0f8bafc08Bob Wilson const MachineOperand &MO = getOperand(DefOpIdx); 862c30aa7b3de0ce8c37e9630e8e7a73cb83c808c62Chris Lattner if (!MO.isReg() || !MO.isDef() || MO.getReg() == 0) 863fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng return false; 864ef5d070bbe55d7165fc84778ca7757c3cfeea491Evan Cheng // Determine the actual operand index that corresponds to this index. 865fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng unsigned DefNo = 0; 866ef5d070bbe55d7165fc84778ca7757c3cfeea491Evan Cheng unsigned DefPart = 0; 867fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng for (unsigned i = 1, e = getNumOperands(); i < e; ) { 868fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng const MachineOperand &FMO = getOperand(i); 86945d34fe35846eed7019bdc2f7814025302849e0cJakob Stoklund Olesen // After the normal asm operands there may be additional imp-def regs. 87045d34fe35846eed7019bdc2f7814025302849e0cJakob Stoklund Olesen if (!FMO.isImm()) 87145d34fe35846eed7019bdc2f7814025302849e0cJakob Stoklund Olesen return false; 872fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng // Skip over this def. 873ef5d070bbe55d7165fc84778ca7757c3cfeea491Evan Cheng unsigned NumOps = InlineAsm::getNumOperandRegisters(FMO.getImm()); 874ef5d070bbe55d7165fc84778ca7757c3cfeea491Evan Cheng unsigned PrevDef = i + 1; 875ef5d070bbe55d7165fc84778ca7757c3cfeea491Evan Cheng i = PrevDef + NumOps; 876ef5d070bbe55d7165fc84778ca7757c3cfeea491Evan Cheng if (i > DefOpIdx) { 877ef5d070bbe55d7165fc84778ca7757c3cfeea491Evan Cheng DefPart = DefOpIdx - PrevDef; 878fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng break; 879ef5d070bbe55d7165fc84778ca7757c3cfeea491Evan Cheng } 880fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng ++DefNo; 881fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng } 882ef5d070bbe55d7165fc84778ca7757c3cfeea491Evan Cheng for (unsigned i = 1, e = getNumOperands(); i != e; ++i) { 883fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng const MachineOperand &FMO = getOperand(i); 884fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng if (!FMO.isImm()) 885fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng continue; 886fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng if (i+1 >= e || !getOperand(i+1).isReg() || !getOperand(i+1).isUse()) 887fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng continue; 888fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng unsigned Idx; 889ef5d070bbe55d7165fc84778ca7757c3cfeea491Evan Cheng if (InlineAsm::isUseOperandTiedToDef(FMO.getImm(), Idx) && 890d9df5017040489303acb57bdd8697ef0f8bafc08Bob Wilson Idx == DefNo) { 891d9df5017040489303acb57bdd8697ef0f8bafc08Bob Wilson if (UseOpIdx) 892ef5d070bbe55d7165fc84778ca7757c3cfeea491Evan Cheng *UseOpIdx = (unsigned)i + 1 + DefPart; 893fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng return true; 894d9df5017040489303acb57bdd8697ef0f8bafc08Bob Wilson } 895fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng } 896ef5d070bbe55d7165fc84778ca7757c3cfeea491Evan Cheng return false; 897fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng } 898fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng 899d9df5017040489303acb57bdd8697ef0f8bafc08Bob Wilson assert(getOperand(DefOpIdx).isDef() && "DefOpIdx is not a def!"); 900749c6f6b5ed301c84aac562e414486549d7b98ebChris Lattner const TargetInstrDesc &TID = getDesc(); 901ef0732d25a9882c947984ae3f2afbef5463ba00fEvan Cheng for (unsigned i = 0, e = TID.getNumOperands(); i != e; ++i) { 902ef0732d25a9882c947984ae3f2afbef5463ba00fEvan Cheng const MachineOperand &MO = getOperand(i); 9032ce7f2068f13566f5a70ee779e3bb83a6cb8d942Dan Gohman if (MO.isReg() && MO.isUse() && 904d9df5017040489303acb57bdd8697ef0f8bafc08Bob Wilson TID.getOperandConstraint(i, TOI::TIED_TO) == (int)DefOpIdx) { 905d9df5017040489303acb57bdd8697ef0f8bafc08Bob Wilson if (UseOpIdx) 906d9df5017040489303acb57bdd8697ef0f8bafc08Bob Wilson *UseOpIdx = (unsigned)i; 907ef0732d25a9882c947984ae3f2afbef5463ba00fEvan Cheng return true; 908d9df5017040489303acb57bdd8697ef0f8bafc08Bob Wilson } 90932dfbeada7292167bb488f36a71a5a6a519ddaffEvan Cheng } 91032dfbeada7292167bb488f36a71a5a6a519ddaffEvan Cheng return false; 91132dfbeada7292167bb488f36a71a5a6a519ddaffEvan Cheng} 91232dfbeada7292167bb488f36a71a5a6a519ddaffEvan Cheng 913a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng/// isRegTiedToDefOperand - Return true if the operand of the specified index 914a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng/// is a register use and it is tied to an def operand. It also returns the def 915a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng/// operand index by reference. 916ce9be2cf5dc84865f6b819bd3f9be16944426268Jakob Stoklund Olesenbool MachineInstr:: 917ce9be2cf5dc84865f6b819bd3f9be16944426268Jakob Stoklund OlesenisRegTiedToDefOperand(unsigned UseOpIdx, unsigned *DefOpIdx) const { 918518bb53485df640d7b7e3f6b0544099020c42aa7Chris Lattner if (isInlineAsm()) { 919fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng const MachineOperand &MO = getOperand(UseOpIdx); 9200c8382ce9a96e36325b17d242fd1af16564d8a85Chris Lattner if (!MO.isReg() || !MO.isUse() || MO.getReg() == 0) 921fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng return false; 92257e599a46b7b1321f9af02d1cecb4fa6b34f8a52Jakob Stoklund Olesen 92357e599a46b7b1321f9af02d1cecb4fa6b34f8a52Jakob Stoklund Olesen // Find the flag operand corresponding to UseOpIdx 92457e599a46b7b1321f9af02d1cecb4fa6b34f8a52Jakob Stoklund Olesen unsigned FlagIdx, NumOps=0; 92557e599a46b7b1321f9af02d1cecb4fa6b34f8a52Jakob Stoklund Olesen for (FlagIdx = 1; FlagIdx < UseOpIdx; FlagIdx += NumOps+1) { 92657e599a46b7b1321f9af02d1cecb4fa6b34f8a52Jakob Stoklund Olesen const MachineOperand &UFMO = getOperand(FlagIdx); 92745d34fe35846eed7019bdc2f7814025302849e0cJakob Stoklund Olesen // After the normal asm operands there may be additional imp-def regs. 92845d34fe35846eed7019bdc2f7814025302849e0cJakob Stoklund Olesen if (!UFMO.isImm()) 92945d34fe35846eed7019bdc2f7814025302849e0cJakob Stoklund Olesen return false; 93057e599a46b7b1321f9af02d1cecb4fa6b34f8a52Jakob Stoklund Olesen NumOps = InlineAsm::getNumOperandRegisters(UFMO.getImm()); 93157e599a46b7b1321f9af02d1cecb4fa6b34f8a52Jakob Stoklund Olesen assert(NumOps < getNumOperands() && "Invalid inline asm flag"); 93257e599a46b7b1321f9af02d1cecb4fa6b34f8a52Jakob Stoklund Olesen if (UseOpIdx < FlagIdx+NumOps+1) 93357e599a46b7b1321f9af02d1cecb4fa6b34f8a52Jakob Stoklund Olesen break; 934ef5d070bbe55d7165fc84778ca7757c3cfeea491Evan Cheng } 93557e599a46b7b1321f9af02d1cecb4fa6b34f8a52Jakob Stoklund Olesen if (FlagIdx >= UseOpIdx) 936ef5d070bbe55d7165fc84778ca7757c3cfeea491Evan Cheng return false; 93757e599a46b7b1321f9af02d1cecb4fa6b34f8a52Jakob Stoklund Olesen const MachineOperand &UFMO = getOperand(FlagIdx); 938fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng unsigned DefNo; 939fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng if (InlineAsm::isUseOperandTiedToDef(UFMO.getImm(), DefNo)) { 940fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng if (!DefOpIdx) 941fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng return true; 942fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng 943fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng unsigned DefIdx = 1; 944fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng // Remember to adjust the index. First operand is asm string, then there 945fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng // is a flag for each. 946fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng while (DefNo) { 947fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng const MachineOperand &FMO = getOperand(DefIdx); 948fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng assert(FMO.isImm()); 949fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng // Skip over this def. 950fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng DefIdx += InlineAsm::getNumOperandRegisters(FMO.getImm()) + 1; 951fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng --DefNo; 952fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng } 953ef5d070bbe55d7165fc84778ca7757c3cfeea491Evan Cheng *DefOpIdx = DefIdx + UseOpIdx - FlagIdx; 954fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng return true; 955fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng } 956fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng return false; 957fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng } 958fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng 959a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng const TargetInstrDesc &TID = getDesc(); 960a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng if (UseOpIdx >= TID.getNumOperands()) 961a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng return false; 962a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng const MachineOperand &MO = getOperand(UseOpIdx); 963a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng if (!MO.isReg() || !MO.isUse()) 964a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng return false; 965a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng int DefIdx = TID.getOperandConstraint(UseOpIdx, TOI::TIED_TO); 966a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng if (DefIdx == -1) 967a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng return false; 968a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng if (DefOpIdx) 969a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng *DefOpIdx = (unsigned)DefIdx; 970a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng return true; 971a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng} 972a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng 973e6cd757e6800b9b94a6459ec148c0624c4f2e3c1Dan Gohman/// clearKillInfo - Clears kill flags on all operands. 974e6cd757e6800b9b94a6459ec148c0624c4f2e3c1Dan Gohman/// 975e6cd757e6800b9b94a6459ec148c0624c4f2e3c1Dan Gohmanvoid MachineInstr::clearKillInfo() { 976e6cd757e6800b9b94a6459ec148c0624c4f2e3c1Dan Gohman for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 977e6cd757e6800b9b94a6459ec148c0624c4f2e3c1Dan Gohman MachineOperand &MO = getOperand(i); 978e6cd757e6800b9b94a6459ec148c0624c4f2e3c1Dan Gohman if (MO.isReg() && MO.isUse()) 979e6cd757e6800b9b94a6459ec148c0624c4f2e3c1Dan Gohman MO.setIsKill(false); 980e6cd757e6800b9b94a6459ec148c0624c4f2e3c1Dan Gohman } 981e6cd757e6800b9b94a6459ec148c0624c4f2e3c1Dan Gohman} 982e6cd757e6800b9b94a6459ec148c0624c4f2e3c1Dan Gohman 983576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng/// copyKillDeadInfo - Copies kill / dead operand properties from MI. 984576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng/// 985576d123e130a8291669dd2384a3735cc4933fd00Evan Chengvoid MachineInstr::copyKillDeadInfo(const MachineInstr *MI) { 986576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng for (unsigned i = 0, e = MI->getNumOperands(); i != e; ++i) { 987576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng const MachineOperand &MO = MI->getOperand(i); 988d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (!MO.isReg() || (!MO.isKill() && !MO.isDead())) 989576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng continue; 990576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng for (unsigned j = 0, ee = getNumOperands(); j != ee; ++j) { 991576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng MachineOperand &MOp = getOperand(j); 992576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng if (!MOp.isIdenticalTo(MO)) 993576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng continue; 994576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng if (MO.isKill()) 995576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng MOp.setIsKill(); 996576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng else 997576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng MOp.setIsDead(); 998576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng break; 999576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng } 1000576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng } 1001576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng} 1002576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng 100319e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng/// copyPredicates - Copies predicate operand(s) from MI. 100419e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Chengvoid MachineInstr::copyPredicates(const MachineInstr *MI) { 1005749c6f6b5ed301c84aac562e414486549d7b98ebChris Lattner const TargetInstrDesc &TID = MI->getDesc(); 1006b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng if (!TID.isPredicable()) 1007b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng return; 1008b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng for (unsigned i = 0, e = MI->getNumOperands(); i != e; ++i) { 1009b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng if (TID.OpInfo[i].isPredicate()) { 1010b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng // Predicated operands must be last operands. 1011b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng addOperand(MI->getOperand(i)); 101219e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng } 101319e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng } 101419e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng} 101519e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng 10169f1c8317a4676945b4961ddb9827ef2412551620Evan Cheng/// isSafeToMove - Return true if it is safe to move this instruction. If 10179f1c8317a4676945b4961ddb9827ef2412551620Evan Cheng/// SawStore is set to true, it means that there is a store (or call) between 10189f1c8317a4676945b4961ddb9827ef2412551620Evan Cheng/// the instruction's location and its intended destination. 1019b3b930a011554fc7566dd4311af3862b01e5fd8fDan Gohmanbool MachineInstr::isSafeToMove(const TargetInstrInfo *TII, 1020ac1abde05b7e6956c01deb6557539bee8fea30f4Evan Cheng AliasAnalysis *AA, 1021ac1abde05b7e6956c01deb6557539bee8fea30f4Evan Cheng bool &SawStore) const { 1022b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng // Ignore stuff that we obviously can't move. 1023b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng if (TID->mayStore() || TID->isCall()) { 1024b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng SawStore = true; 1025b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng return false; 1026b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng } 1027237dee125997dcaf16e391878465162cc680c0faDan Gohman if (TID->isTerminator() || TID->hasUnmodeledSideEffects()) 1028b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng return false; 1029b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng 1030b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng // See if this instruction does a load. If so, we have to guarantee that the 1031b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng // loaded value doesn't change between the load and the its intended 1032b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng // destination. The check for isInvariantLoad gives the targe the chance to 1033b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng // classify the load as always returning a constant, e.g. a constant pool 1034b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng // load. 1035a70dca156fa76d452f54829b5c5f962ddfd94ef2Dan Gohman if (TID->mayLoad() && !isInvariantLoad(AA)) 1036b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng // Otherwise, this is a real load. If there is a store between the load and 10377cc2c406d0c82bcf329048ced643ec77fcae60e6Evan Cheng // end of block, or if the load is volatile, we can't move it. 1038d790a5ceee7138d8a5352432ccf862a42e3f5819Dan Gohman return !SawStore && !hasVolatileMemoryRef(); 10393e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman 1040b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng return true; 1041b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng} 1042b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng 1043df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng/// isSafeToReMat - Return true if it's safe to rematerialize the specified 1044df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng/// instruction which defined the specified register instead of copying it. 1045b3b930a011554fc7566dd4311af3862b01e5fd8fDan Gohmanbool MachineInstr::isSafeToReMat(const TargetInstrInfo *TII, 1046ac1abde05b7e6956c01deb6557539bee8fea30f4Evan Cheng AliasAnalysis *AA, 1047ac1abde05b7e6956c01deb6557539bee8fea30f4Evan Cheng unsigned DstReg) const { 1048df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng bool SawStore = false; 1049a70dca156fa76d452f54829b5c5f962ddfd94ef2Dan Gohman if (!TII->isTriviallyReMaterializable(this, AA) || 1050ac1abde05b7e6956c01deb6557539bee8fea30f4Evan Cheng !isSafeToMove(TII, AA, SawStore)) 1051df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng return false; 1052df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 1053cbad42cfd1cc93a41ff26ea2e8895bfbc09f54f2Dan Gohman const MachineOperand &MO = getOperand(i); 1054d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (!MO.isReg()) 1055df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng continue; 1056df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng // FIXME: For now, do not remat any instruction with register operands. 1057df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng // Later on, we can loosen the restriction is the register operands have 1058df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng // not been modified between the def and use. Note, this is different from 10598763c1c54413c9cd0b56e2860edb5856151a69fcEvan Cheng // MachineSink because the code is no longer in two-address form (at least 1060df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng // partially). 1061df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng if (MO.isUse()) 1062df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng return false; 1063df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng else if (!MO.isDead() && MO.getReg() != DstReg) 1064df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng return false; 1065df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng } 1066df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng return true; 1067df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng} 1068df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng 10693e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman/// hasVolatileMemoryRef - Return true if this instruction may have a 10703e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman/// volatile memory reference, or if the information describing the 10713e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman/// memory reference is not available. Return false if it is known to 10723e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman/// have no volatile memory references. 10733e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohmanbool MachineInstr::hasVolatileMemoryRef() const { 10743e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman // An instruction known never to access memory won't have a volatile access. 10753e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman if (!TID->mayStore() && 10763e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman !TID->mayLoad() && 10773e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman !TID->isCall() && 10783e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman !TID->hasUnmodeledSideEffects()) 10793e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman return false; 10803e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman 10813e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman // Otherwise, if the instruction has no memory reference information, 10823e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman // conservatively assume it wasn't preserved. 10833e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman if (memoperands_empty()) 10843e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman return true; 10853e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman 10863e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman // Check the memory reference information for volatile references. 1087c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman for (mmo_iterator I = memoperands_begin(), E = memoperands_end(); I != E; ++I) 1088c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman if ((*I)->isVolatile()) 10893e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman return true; 10903e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman 10913e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman return false; 10923e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman} 10933e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman 1094e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman/// isInvariantLoad - Return true if this instruction is loading from a 1095e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman/// location whose value is invariant across the function. For example, 1096f451cb870efcf9e0302d25ed05f4cac6bb494e42Dan Gohman/// loading a value from the constant pool or from the argument area 1097e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman/// of a function if it does not change. This should only return true of 1098e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman/// *all* loads the instruction does are invariant (if it does multiple loads). 1099e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohmanbool MachineInstr::isInvariantLoad(AliasAnalysis *AA) const { 1100e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman // If the instruction doesn't load at all, it isn't an invariant load. 1101e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman if (!TID->mayLoad()) 1102e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman return false; 1103e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman 1104e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman // If the instruction has lost its memoperands, conservatively assume that 1105e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman // it may not be an invariant load. 1106e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman if (memoperands_empty()) 1107e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman return false; 1108e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman 1109e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman const MachineFrameInfo *MFI = getParent()->getParent()->getFrameInfo(); 1110e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman 1111e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman for (mmo_iterator I = memoperands_begin(), 1112e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman E = memoperands_end(); I != E; ++I) { 1113e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman if ((*I)->isVolatile()) return false; 1114e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman if ((*I)->isStore()) return false; 1115e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman 1116e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman if (const Value *V = (*I)->getValue()) { 1117e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman // A load from a constant PseudoSourceValue is invariant. 1118e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman if (const PseudoSourceValue *PSV = dyn_cast<PseudoSourceValue>(V)) 1119e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman if (PSV->isConstant(MFI)) 1120e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman continue; 1121e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman // If we have an AliasAnalysis, ask it whether the memory is constant. 1122e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman if (AA && AA->pointsToConstantMemory(V)) 1123e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman continue; 1124e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman } 1125e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman 1126e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman // Otherwise assume conservatively. 1127e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman return false; 1128e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman } 1129e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman 1130e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman // Everything checks out. 1131e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman return true; 1132e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman} 1133e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman 1134229694f0ee630ceabe96a8bd48952f6740f928b2Evan Cheng/// isConstantValuePHI - If the specified instruction is a PHI that always 1135229694f0ee630ceabe96a8bd48952f6740f928b2Evan Cheng/// merges together the same virtual register, return the register, otherwise 1136229694f0ee630ceabe96a8bd48952f6740f928b2Evan Cheng/// return 0. 1137229694f0ee630ceabe96a8bd48952f6740f928b2Evan Chengunsigned MachineInstr::isConstantValuePHI() const { 1138518bb53485df640d7b7e3f6b0544099020c42aa7Chris Lattner if (!isPHI()) 1139229694f0ee630ceabe96a8bd48952f6740f928b2Evan Cheng return 0; 1140d8f079c25e8bcaf4d10bfa9c3f6a38cd5ac84329Evan Cheng assert(getNumOperands() >= 3 && 1141d8f079c25e8bcaf4d10bfa9c3f6a38cd5ac84329Evan Cheng "It's illegal to have a PHI without source operands"); 1142229694f0ee630ceabe96a8bd48952f6740f928b2Evan Cheng 1143229694f0ee630ceabe96a8bd48952f6740f928b2Evan Cheng unsigned Reg = getOperand(1).getReg(); 1144229694f0ee630ceabe96a8bd48952f6740f928b2Evan Cheng for (unsigned i = 3, e = getNumOperands(); i < e; i += 2) 1145229694f0ee630ceabe96a8bd48952f6740f928b2Evan Cheng if (getOperand(i).getReg() != Reg) 1146229694f0ee630ceabe96a8bd48952f6740f928b2Evan Cheng return 0; 1147229694f0ee630ceabe96a8bd48952f6740f928b2Evan Cheng return Reg; 1148229694f0ee630ceabe96a8bd48952f6740f928b2Evan Cheng} 1149229694f0ee630ceabe96a8bd48952f6740f928b2Evan Cheng 1150a57fabe815ccf016eead526eb3ef475f116ab155Evan Cheng/// allDefsAreDead - Return true if all the defs of this instruction are dead. 1151a57fabe815ccf016eead526eb3ef475f116ab155Evan Cheng/// 1152a57fabe815ccf016eead526eb3ef475f116ab155Evan Chengbool MachineInstr::allDefsAreDead() const { 1153a57fabe815ccf016eead526eb3ef475f116ab155Evan Cheng for (unsigned i = 0, e = getNumOperands(); i < e; ++i) { 1154a57fabe815ccf016eead526eb3ef475f116ab155Evan Cheng const MachineOperand &MO = getOperand(i); 1155a57fabe815ccf016eead526eb3ef475f116ab155Evan Cheng if (!MO.isReg() || MO.isUse()) 1156a57fabe815ccf016eead526eb3ef475f116ab155Evan Cheng continue; 1157a57fabe815ccf016eead526eb3ef475f116ab155Evan Cheng if (!MO.isDead()) 1158a57fabe815ccf016eead526eb3ef475f116ab155Evan Cheng return false; 1159a57fabe815ccf016eead526eb3ef475f116ab155Evan Cheng } 1160a57fabe815ccf016eead526eb3ef475f116ab155Evan Cheng return true; 1161a57fabe815ccf016eead526eb3ef475f116ab155Evan Cheng} 1162a57fabe815ccf016eead526eb3ef475f116ab155Evan Cheng 116321326fc2ad47ee7e73a8c0b03a4a0cc0b0a0c4e8Brian Gaekevoid MachineInstr::dump() const { 11643b325334102144ec39910563eabebde434504564David Greene dbgs() << " " << *this; 11655ca6bd14a00ba5310ce1a632d3a0cc8f8af31433Mon P Wang} 11665ca6bd14a00ba5310ce1a632d3a0cc8f8af31433Mon P Wang 11675ca6bd14a00ba5310ce1a632d3a0cc8f8af31433Mon P Wangvoid MachineInstr::print(raw_ostream &OS, const TargetMachine *TM) const { 116880f6c5898113806130975fd56d24929b06bf54f8Dan Gohman // We can be a bit tidier if we know the TargetMachine and/or MachineFunction. 116980f6c5898113806130975fd56d24929b06bf54f8Dan Gohman const MachineFunction *MF = 0; 117080f6c5898113806130975fd56d24929b06bf54f8Dan Gohman if (const MachineBasicBlock *MBB = getParent()) { 117180f6c5898113806130975fd56d24929b06bf54f8Dan Gohman MF = MBB->getParent(); 117280f6c5898113806130975fd56d24929b06bf54f8Dan Gohman if (!TM && MF) 117380f6c5898113806130975fd56d24929b06bf54f8Dan Gohman TM = &MF->getTarget(); 117480f6c5898113806130975fd56d24929b06bf54f8Dan Gohman } 11750ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman 11760ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman // Print explicitly defined operands on the left of an assignment syntax. 117780f6c5898113806130975fd56d24929b06bf54f8Dan Gohman unsigned StartOp = 0, e = getNumOperands(); 11780ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman for (; StartOp < e && getOperand(StartOp).isReg() && 11790ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman getOperand(StartOp).isDef() && 11800ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman !getOperand(StartOp).isImplicit(); 11810ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman ++StartOp) { 11820ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman if (StartOp != 0) OS << ", "; 11830ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman getOperand(StartOp).print(OS, TM); 11846a592271fb2946a0704b06fd66199987cdd40b3cChris Lattner } 1185b140762a45d21aaed054f15adaff0fc2274d939dTanya Lattner 11860ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman if (StartOp != 0) 11870ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman OS << " = "; 11880ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman 11890ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman // Print the opcode name. 1190749c6f6b5ed301c84aac562e414486549d7b98ebChris Lattner OS << getDesc().getName(); 1191edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 11920ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman // Print the rest of the operands. 119380f6c5898113806130975fd56d24929b06bf54f8Dan Gohman bool OmittedAnyCallClobbers = false; 119480f6c5898113806130975fd56d24929b06bf54f8Dan Gohman bool FirstOp = true; 11956a592271fb2946a0704b06fd66199987cdd40b3cChris Lattner for (unsigned i = StartOp, e = getNumOperands(); i != e; ++i) { 119680f6c5898113806130975fd56d24929b06bf54f8Dan Gohman const MachineOperand &MO = getOperand(i); 119780f6c5898113806130975fd56d24929b06bf54f8Dan Gohman 119880f6c5898113806130975fd56d24929b06bf54f8Dan Gohman // Omit call-clobbered registers which aren't used anywhere. This makes 119980f6c5898113806130975fd56d24929b06bf54f8Dan Gohman // call instructions much less noisy on targets where calls clobber lots 120080f6c5898113806130975fd56d24929b06bf54f8Dan Gohman // of registers. Don't rely on MO.isDead() because we may be called before 120180f6c5898113806130975fd56d24929b06bf54f8Dan Gohman // LiveVariables is run, or we may be looking at a non-allocatable reg. 120280f6c5898113806130975fd56d24929b06bf54f8Dan Gohman if (MF && getDesc().isCall() && 120380f6c5898113806130975fd56d24929b06bf54f8Dan Gohman MO.isReg() && MO.isImplicit() && MO.isDef()) { 120480f6c5898113806130975fd56d24929b06bf54f8Dan Gohman unsigned Reg = MO.getReg(); 120580f6c5898113806130975fd56d24929b06bf54f8Dan Gohman if (Reg != 0 && TargetRegisterInfo::isPhysicalRegister(Reg)) { 120680f6c5898113806130975fd56d24929b06bf54f8Dan Gohman const MachineRegisterInfo &MRI = MF->getRegInfo(); 120780f6c5898113806130975fd56d24929b06bf54f8Dan Gohman if (MRI.use_empty(Reg) && !MRI.isLiveOut(Reg)) { 120880f6c5898113806130975fd56d24929b06bf54f8Dan Gohman bool HasAliasLive = false; 120980f6c5898113806130975fd56d24929b06bf54f8Dan Gohman for (const unsigned *Alias = TM->getRegisterInfo()->getAliasSet(Reg); 121080f6c5898113806130975fd56d24929b06bf54f8Dan Gohman unsigned AliasReg = *Alias; ++Alias) 121180f6c5898113806130975fd56d24929b06bf54f8Dan Gohman if (!MRI.use_empty(AliasReg) || MRI.isLiveOut(AliasReg)) { 121280f6c5898113806130975fd56d24929b06bf54f8Dan Gohman HasAliasLive = true; 121380f6c5898113806130975fd56d24929b06bf54f8Dan Gohman break; 121480f6c5898113806130975fd56d24929b06bf54f8Dan Gohman } 121580f6c5898113806130975fd56d24929b06bf54f8Dan Gohman if (!HasAliasLive) { 121680f6c5898113806130975fd56d24929b06bf54f8Dan Gohman OmittedAnyCallClobbers = true; 121780f6c5898113806130975fd56d24929b06bf54f8Dan Gohman continue; 121880f6c5898113806130975fd56d24929b06bf54f8Dan Gohman } 121980f6c5898113806130975fd56d24929b06bf54f8Dan Gohman } 122080f6c5898113806130975fd56d24929b06bf54f8Dan Gohman } 122180f6c5898113806130975fd56d24929b06bf54f8Dan Gohman } 122280f6c5898113806130975fd56d24929b06bf54f8Dan Gohman 122380f6c5898113806130975fd56d24929b06bf54f8Dan Gohman if (FirstOp) FirstOp = false; else OS << ","; 12246a592271fb2946a0704b06fd66199987cdd40b3cChris Lattner OS << " "; 1225b1bb4afbc7d801f9875be135c428b6f05511db5dJakob Stoklund Olesen if (i < getDesc().NumOperands) { 1226b1bb4afbc7d801f9875be135c428b6f05511db5dJakob Stoklund Olesen const TargetOperandInfo &TOI = getDesc().OpInfo[i]; 1227b1bb4afbc7d801f9875be135c428b6f05511db5dJakob Stoklund Olesen if (TOI.isPredicate()) 1228b1bb4afbc7d801f9875be135c428b6f05511db5dJakob Stoklund Olesen OS << "pred:"; 1229b1bb4afbc7d801f9875be135c428b6f05511db5dJakob Stoklund Olesen if (TOI.isOptionalDef()) 1230b1bb4afbc7d801f9875be135c428b6f05511db5dJakob Stoklund Olesen OS << "opt:"; 1231b1bb4afbc7d801f9875be135c428b6f05511db5dJakob Stoklund Olesen } 123259b3655564bb6717b296ca9e71f13bf7db45b590Evan Cheng if (isDebugValue() && MO.isMetadata()) { 123359b3655564bb6717b296ca9e71f13bf7db45b590Evan Cheng // Pretty print DBG_VALUE instructions. 123459b3655564bb6717b296ca9e71f13bf7db45b590Evan Cheng const MDNode *MD = MO.getMetadata(); 123559b3655564bb6717b296ca9e71f13bf7db45b590Evan Cheng if (const MDString *MDS = dyn_cast<MDString>(MD->getOperand(2))) 123659b3655564bb6717b296ca9e71f13bf7db45b590Evan Cheng OS << "!\"" << MDS->getString() << '\"'; 123759b3655564bb6717b296ca9e71f13bf7db45b590Evan Cheng else 123859b3655564bb6717b296ca9e71f13bf7db45b590Evan Cheng MO.print(OS, TM); 123959b3655564bb6717b296ca9e71f13bf7db45b590Evan Cheng } else 124059b3655564bb6717b296ca9e71f13bf7db45b590Evan Cheng MO.print(OS, TM); 124180f6c5898113806130975fd56d24929b06bf54f8Dan Gohman } 124280f6c5898113806130975fd56d24929b06bf54f8Dan Gohman 124380f6c5898113806130975fd56d24929b06bf54f8Dan Gohman // Briefly indicate whether any call clobbers were omitted. 124480f6c5898113806130975fd56d24929b06bf54f8Dan Gohman if (OmittedAnyCallClobbers) { 1245164558e59c2a321bf670e31a7bdde0d38d79bb67Bill Wendling if (!FirstOp) OS << ","; 124680f6c5898113806130975fd56d24929b06bf54f8Dan Gohman OS << " ..."; 12471049164aa6b06d91d9b3b557a9a213eaf3f6319aChris Lattner } 1248edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 12490ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman bool HaveSemi = false; 12508e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman if (!memoperands_empty()) { 12510ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman if (!HaveSemi) OS << ";"; HaveSemi = true; 12520ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman 12530ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman OS << " mem:"; 1254c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman for (mmo_iterator i = memoperands_begin(), e = memoperands_end(); 1255c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman i != e; ++i) { 1256c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman OS << **i; 1257cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman if (next(i) != e) 1258cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman OS << " "; 125969de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman } 126069de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman } 126169de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman 126280f6c5898113806130975fd56d24929b06bf54f8Dan Gohman if (!debugLoc.isUnknown() && MF) { 1263ad2cf9dd63d15a8bcd7d34a379a1e983fd8c66f7Bill Wendling if (!HaveSemi) OS << ";"; 12640ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman 12650ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman // TODO: print InlinedAtLoc information 12660ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman 1267de4845c163a5847c82d7ce10ed0c320098bce6e0Chris Lattner DIScope Scope(debugLoc.getScope(MF->getFunction()->getContext())); 126875ae593a2750f9f7995980c3a03c0d972985e394Dan Gohman OS << " dbg:"; 12694b808b014b0cd25261f93e1885ffdbd0247d8634Dan Gohman // Omit the directory, since it's usually long and uninteresting. 12703c91b05d2b1751b9e4e21fd958d358ec463dcd3cDevang Patel if (Scope.Verify()) 12714b808b014b0cd25261f93e1885ffdbd0247d8634Dan Gohman OS << Scope.getFilename(); 12724b808b014b0cd25261f93e1885ffdbd0247d8634Dan Gohman else 12734b808b014b0cd25261f93e1885ffdbd0247d8634Dan Gohman OS << "<unknown>"; 1274de4845c163a5847c82d7ce10ed0c320098bce6e0Chris Lattner OS << ':' << debugLoc.getLine(); 1275de4845c163a5847c82d7ce10ed0c320098bce6e0Chris Lattner if (debugLoc.getCol() != 0) 1276de4845c163a5847c82d7ce10ed0c320098bce6e0Chris Lattner OS << ':' << debugLoc.getCol(); 1277b5ef27375731ece13a8ae0102b3f3233351036afBill Wendling } 1278b5ef27375731ece13a8ae0102b3f3233351036afBill Wendling 12791049164aa6b06d91d9b3b557a9a213eaf3f6319aChris Lattner OS << "\n"; 12801049164aa6b06d91d9b3b557a9a213eaf3f6319aChris Lattner} 12811049164aa6b06d91d9b3b557a9a213eaf3f6319aChris Lattner 1282b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Andersonbool MachineInstr::addRegisterKilled(unsigned IncomingReg, 12836f0d024a534af18d9e60b3ea757376cd8a3a980eDan Gohman const TargetRegisterInfo *RegInfo, 1284b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson bool AddIfNotFound) { 12859b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng bool isPhysReg = TargetRegisterInfo::isPhysicalRegister(IncomingReg); 12862ebc11ac6d19ec806da97bd4f2d49a27932d09fbDan Gohman bool hasAliases = isPhysReg && RegInfo->getAliasSet(IncomingReg); 12873f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman bool Found = false; 12889b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng SmallVector<unsigned,4> DeadOps; 12894a23d72ec21d1bdfda69fd16c9fc10cec39f1fedBill Wendling for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 12904a23d72ec21d1bdfda69fd16c9fc10cec39f1fedBill Wendling MachineOperand &MO = getOperand(i); 1291efb8e3e113cbf359d6a838c3b37fedc8305d19bbJakob Stoklund Olesen if (!MO.isReg() || !MO.isUse() || MO.isUndef()) 12929b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng continue; 12939b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng unsigned Reg = MO.getReg(); 12949b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng if (!Reg) 12959b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng continue; 12964a23d72ec21d1bdfda69fd16c9fc10cec39f1fedBill Wendling 12979b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng if (Reg == IncomingReg) { 12983f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman if (!Found) { 12993f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman if (MO.isKill()) 13003f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman // The register is already marked kill. 13013f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman return true; 1302ece48185168ab130b1777feb86d9e3fe80eb87d2Jakob Stoklund Olesen if (isPhysReg && isRegTiedToDefOperand(i)) 1303ece48185168ab130b1777feb86d9e3fe80eb87d2Jakob Stoklund Olesen // Two-address uses of physregs must not be marked kill. 1304ece48185168ab130b1777feb86d9e3fe80eb87d2Jakob Stoklund Olesen return true; 13053f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman MO.setIsKill(); 13063f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman Found = true; 13073f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman } 13083f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman } else if (hasAliases && MO.isKill() && 13093f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman TargetRegisterInfo::isPhysicalRegister(Reg)) { 13109b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng // A super-register kill already exists. 13119b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng if (RegInfo->isSuperRegister(IncomingReg, Reg)) 13122ebc11ac6d19ec806da97bd4f2d49a27932d09fbDan Gohman return true; 13132ebc11ac6d19ec806da97bd4f2d49a27932d09fbDan Gohman if (RegInfo->isSubRegister(IncomingReg, Reg)) 13149b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng DeadOps.push_back(i); 1315b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson } 1316b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson } 1317b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson 13189b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng // Trim unneeded kill operands. 13199b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng while (!DeadOps.empty()) { 13209b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng unsigned OpIdx = DeadOps.back(); 13219b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng if (getOperand(OpIdx).isImplicit()) 13229b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng RemoveOperand(OpIdx); 13239b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng else 13249b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng getOperand(OpIdx).setIsKill(false); 13259b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng DeadOps.pop_back(); 13269b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng } 13279b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng 13284a23d72ec21d1bdfda69fd16c9fc10cec39f1fedBill Wendling // If not found, this means an alias of one of the operands is killed. Add a 1329b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson // new implicit operand if required. 13303f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman if (!Found && AddIfNotFound) { 13314a23d72ec21d1bdfda69fd16c9fc10cec39f1fedBill Wendling addOperand(MachineOperand::CreateReg(IncomingReg, 13324a23d72ec21d1bdfda69fd16c9fc10cec39f1fedBill Wendling false /*IsDef*/, 13334a23d72ec21d1bdfda69fd16c9fc10cec39f1fedBill Wendling true /*IsImp*/, 13344a23d72ec21d1bdfda69fd16c9fc10cec39f1fedBill Wendling true /*IsKill*/)); 1335b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson return true; 1336b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson } 13373f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman return Found; 1338b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson} 1339b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson 1340b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Andersonbool MachineInstr::addRegisterDead(unsigned IncomingReg, 13416f0d024a534af18d9e60b3ea757376cd8a3a980eDan Gohman const TargetRegisterInfo *RegInfo, 1342b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson bool AddIfNotFound) { 13439b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng bool isPhysReg = TargetRegisterInfo::isPhysicalRegister(IncomingReg); 134401b2e236b571e7c22ee8493b7ea19eda9830d75cEvan Cheng bool hasAliases = isPhysReg && RegInfo->getAliasSet(IncomingReg); 13453f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman bool Found = false; 13469b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng SmallVector<unsigned,4> DeadOps; 1347b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 1348b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson MachineOperand &MO = getOperand(i); 1349d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (!MO.isReg() || !MO.isDef()) 13509b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng continue; 13519b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng unsigned Reg = MO.getReg(); 13523f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman if (!Reg) 13533f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman continue; 13543f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman 13559b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng if (Reg == IncomingReg) { 13563f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman if (!Found) { 13573f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman if (MO.isDead()) 13583f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman // The register is already marked dead. 13593f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman return true; 13603f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman MO.setIsDead(); 13613f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman Found = true; 13623f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman } 13633f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman } else if (hasAliases && MO.isDead() && 13643f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman TargetRegisterInfo::isPhysicalRegister(Reg)) { 13659b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng // There exists a super-register that's marked dead. 13669b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng if (RegInfo->isSuperRegister(IncomingReg, Reg)) 13672ebc11ac6d19ec806da97bd4f2d49a27932d09fbDan Gohman return true; 136822ae99908258dd5631fde7128a94c418ed08eae5Owen Anderson if (RegInfo->getSubRegisters(IncomingReg) && 136922ae99908258dd5631fde7128a94c418ed08eae5Owen Anderson RegInfo->getSuperRegisters(Reg) && 137022ae99908258dd5631fde7128a94c418ed08eae5Owen Anderson RegInfo->isSubRegister(IncomingReg, Reg)) 13719b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng DeadOps.push_back(i); 1372b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson } 1373b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson } 1374b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson 13759b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng // Trim unneeded dead operands. 13769b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng while (!DeadOps.empty()) { 13779b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng unsigned OpIdx = DeadOps.back(); 13789b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng if (getOperand(OpIdx).isImplicit()) 13799b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng RemoveOperand(OpIdx); 13809b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng else 13819b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng getOperand(OpIdx).setIsDead(false); 13829b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng DeadOps.pop_back(); 13839b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng } 13849b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng 13853f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman // If not found, this means an alias of one of the operands is dead. Add a 13863f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman // new implicit operand if required. 138731530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner if (Found || !AddIfNotFound) 138831530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner return Found; 138931530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner 139031530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner addOperand(MachineOperand::CreateReg(IncomingReg, 139131530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner true /*IsDef*/, 139231530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner true /*IsImp*/, 139331530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner false /*IsKill*/, 139431530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner true /*IsDead*/)); 139531530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner return true; 1396b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson} 13978efadf94b568c08de3ff8ce35fd904a935387406Jakob Stoklund Olesen 13988efadf94b568c08de3ff8ce35fd904a935387406Jakob Stoklund Olesenvoid MachineInstr::addRegisterDefined(unsigned IncomingReg, 13998efadf94b568c08de3ff8ce35fd904a935387406Jakob Stoklund Olesen const TargetRegisterInfo *RegInfo) { 140063e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen if (TargetRegisterInfo::isPhysicalRegister(IncomingReg)) { 140163e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen MachineOperand *MO = findRegisterDefOperand(IncomingReg, false, RegInfo); 140263e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen if (MO) 140363e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen return; 140463e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen } else { 140563e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 140663e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen const MachineOperand &MO = getOperand(i); 140763e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen if (MO.isReg() && MO.getReg() == IncomingReg && MO.isDef() && 140863e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen MO.getSubReg() == 0) 140963e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen return; 141063e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen } 141163e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen } 141263e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen addOperand(MachineOperand::CreateReg(IncomingReg, 141363e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen true /*IsDef*/, 141463e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen true /*IsImp*/)); 14158efadf94b568c08de3ff8ce35fd904a935387406Jakob Stoklund Olesen} 141667eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Cheng 141767eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Chengunsigned 141867eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan ChengMachineInstrExpressionTrait::getHashValue(const MachineInstr* const &MI) { 141967eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Cheng unsigned Hash = MI->getOpcode() * 37; 142067eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Cheng for (unsigned i = 0, e = MI->getNumOperands(); i != e; ++i) { 142167eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Cheng const MachineOperand &MO = MI->getOperand(i); 142267eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Cheng uint64_t Key = (uint64_t)MO.getType() << 32; 142367eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Cheng switch (MO.getType()) { 142472aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner default: break; 142572aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner case MachineOperand::MO_Register: 142672aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner if (MO.isDef() && MO.getReg() && 142772aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner TargetRegisterInfo::isVirtualRegister(MO.getReg())) 142872aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner continue; // Skip virtual register defs. 142972aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner Key |= MO.getReg(); 143072aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner break; 143172aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner case MachineOperand::MO_Immediate: 143272aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner Key |= MO.getImm(); 143372aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner break; 143472aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner case MachineOperand::MO_FrameIndex: 143572aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner case MachineOperand::MO_ConstantPoolIndex: 143672aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner case MachineOperand::MO_JumpTableIndex: 143772aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner Key |= MO.getIndex(); 143872aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner break; 143972aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner case MachineOperand::MO_MachineBasicBlock: 144072aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner Key |= DenseMapInfo<void*>::getHashValue(MO.getMBB()); 144172aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner break; 144272aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner case MachineOperand::MO_GlobalAddress: 144372aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner Key |= DenseMapInfo<void*>::getHashValue(MO.getGlobal()); 144472aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner break; 144572aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner case MachineOperand::MO_BlockAddress: 144672aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner Key |= DenseMapInfo<void*>::getHashValue(MO.getBlockAddress()); 144772aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner break; 144872aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner case MachineOperand::MO_MCSymbol: 144972aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner Key |= DenseMapInfo<void*>::getHashValue(MO.getMCSymbol()); 145072aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner break; 145167eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Cheng } 145267eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Cheng Key += ~(Key << 32); 145367eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Cheng Key ^= (Key >> 22); 145467eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Cheng Key += ~(Key << 13); 145567eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Cheng Key ^= (Key >> 8); 145667eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Cheng Key += (Key << 3); 145767eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Cheng Key ^= (Key >> 15); 145867eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Cheng Key += ~(Key << 27); 145967eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Cheng Key ^= (Key >> 31); 146067eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Cheng Hash = (unsigned)Key + Hash * 37; 146167eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Cheng } 146267eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Cheng return Hash; 146367eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Cheng} 1464