MachineInstr.cpp revision dc6d846df56f83be4c7045ccc9092f8a8343360b
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" 160bcbd1df7a204e1e512f1a27066d725309de1b13Bill Wendling#include "llvm/DebugInfo.h" 178c2b52552c90f39e4b2fed43e309e599e742b6acDan Gohman#include "llvm/Function.h" 18fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng#include "llvm/InlineAsm.h" 19d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen#include "llvm/LLVMContext.h" 2072aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner#include "llvm/Metadata.h" 21d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen#include "llvm/Module.h" 225e9cd434234a36089daeee915f1dc02b96947fbaChris Lattner#include "llvm/Type.h" 2384bc5427d6883f73cfeae3da640acd011d35c006Chris Lattner#include "llvm/Value.h" 24cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman#include "llvm/Assembly/Writer.h" 25506049f29f4f202a8e45feb916cc0264440a7f6dEvan Cheng#include "llvm/CodeGen/MachineConstantPool.h" 268517e1f0beea9b5e47974f083396d53294c390adChris Lattner#include "llvm/CodeGen/MachineFunction.h" 27c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman#include "llvm/CodeGen/MachineMemOperand.h" 28d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen#include "llvm/CodeGen/MachineModuleInfo.h" 2962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner#include "llvm/CodeGen/MachineRegisterInfo.h" 3069de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman#include "llvm/CodeGen/PseudoSourceValue.h" 31e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng#include "llvm/MC/MCInstrDesc.h" 3272aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner#include "llvm/MC/MCSymbol.h" 331049164aa6b06d91d9b3b557a9a213eaf3f6319aChris Lattner#include "llvm/Target/TargetMachine.h" 34bb81d97feb396a8bb21d074db1c57e9f66525f40Evan Cheng#include "llvm/Target/TargetInstrInfo.h" 356f0d024a534af18d9e60b3ea757376cd8a3a980eDan Gohman#include "llvm/Target/TargetRegisterInfo.h" 36e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman#include "llvm/Analysis/AliasAnalysis.h" 373b325334102144ec39910563eabebde434504564David Greene#include "llvm/Support/Debug.h" 38c25e7581b9b8088910da31702d4ca21c4734c6d7Torok Edwin#include "llvm/Support/ErrorHandling.h" 392c3f7ae3843bdc9dcfe85393e178211976c1f9bdDan Gohman#include "llvm/Support/LeakDetector.h" 40ce42e404a26454f4332c2c350c75ad27bbbb16f7Dan Gohman#include "llvm/Support/MathExtras.h" 41edfb72c6288118ab9c900a560ded89dfaa107296Chris Lattner#include "llvm/Support/raw_ostream.h" 42b8d2f550b84523e8a73198f98e5d450ec3b4fee7Dan Gohman#include "llvm/ADT/FoldingSet.h" 43fc22625eb04d39b0de77090702cf50a9bcda3ddbChandler Carruth#include "llvm/ADT/Hashing.h" 440742b59913a7760eb26f08121cd244a37e83e3b3Chris Lattnerusing namespace llvm; 45d0fde30ce850b78371fd1386338350591f9ff494Brian Gaeke 46f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner//===----------------------------------------------------------------------===// 47f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner// MachineOperand Implementation 48f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner//===----------------------------------------------------------------------===// 49f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner 5062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattnervoid MachineOperand::setReg(unsigned Reg) { 5162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (getReg() == Reg) return; // No change. 52ee61d67c2f1105e23b2ea5110389f3b7b713b504Jim Grosbach 5362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Otherwise, we have to change the register. If this operand is embedded 5462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // into a machine function, we need to update the old and new register's 5562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // use/def lists. 5662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (MachineInstr *MI = getParent()) 5762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (MachineBasicBlock *MBB = MI->getParent()) 5862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (MachineFunction *MF = MBB->getParent()) { 59ff2b99afc8cbc6cfa73181072888e0f9f07deb7eJakob Stoklund Olesen MachineRegisterInfo &MRI = MF->getRegInfo(); 60ff2b99afc8cbc6cfa73181072888e0f9f07deb7eJakob Stoklund Olesen MRI.removeRegOperandFromUseList(this); 612594746045258958673ebe42db2a27a4d05b0b73Jakob Stoklund Olesen SmallContents.RegNo = Reg; 62ff2b99afc8cbc6cfa73181072888e0f9f07deb7eJakob Stoklund Olesen MRI.addRegOperandToUseList(this); 6362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner return; 6462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 65ee61d67c2f1105e23b2ea5110389f3b7b713b504Jim Grosbach 6662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Otherwise, just change the register, no problem. :) 672594746045258958673ebe42db2a27a4d05b0b73Jakob Stoklund Olesen SmallContents.RegNo = Reg; 6862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner} 6962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 702da53370241fdd1b5c291483311b34e609f06c73Jakob Stoklund Olesenvoid MachineOperand::substVirtReg(unsigned Reg, unsigned SubIdx, 712da53370241fdd1b5c291483311b34e609f06c73Jakob Stoklund Olesen const TargetRegisterInfo &TRI) { 722da53370241fdd1b5c291483311b34e609f06c73Jakob Stoklund Olesen assert(TargetRegisterInfo::isVirtualRegister(Reg)); 732da53370241fdd1b5c291483311b34e609f06c73Jakob Stoklund Olesen if (SubIdx && getSubReg()) 742da53370241fdd1b5c291483311b34e609f06c73Jakob Stoklund Olesen SubIdx = TRI.composeSubRegIndices(SubIdx, getSubReg()); 752da53370241fdd1b5c291483311b34e609f06c73Jakob Stoklund Olesen setReg(Reg); 76a5135f60dd95275dcbc1123f866889151ced933dJakob Stoklund Olesen if (SubIdx) 77a5135f60dd95275dcbc1123f866889151ced933dJakob Stoklund Olesen setSubReg(SubIdx); 782da53370241fdd1b5c291483311b34e609f06c73Jakob Stoklund Olesen} 792da53370241fdd1b5c291483311b34e609f06c73Jakob Stoklund Olesen 802da53370241fdd1b5c291483311b34e609f06c73Jakob Stoklund Olesenvoid MachineOperand::substPhysReg(unsigned Reg, const TargetRegisterInfo &TRI) { 812da53370241fdd1b5c291483311b34e609f06c73Jakob Stoklund Olesen assert(TargetRegisterInfo::isPhysicalRegister(Reg)); 822da53370241fdd1b5c291483311b34e609f06c73Jakob Stoklund Olesen if (getSubReg()) { 832da53370241fdd1b5c291483311b34e609f06c73Jakob Stoklund Olesen Reg = TRI.getSubReg(Reg, getSubReg()); 84cf724f078623e786fc92335fdb0ec70b46f2e86dJakob Stoklund Olesen // Note that getSubReg() may return 0 if the sub-register doesn't exist. 85cf724f078623e786fc92335fdb0ec70b46f2e86dJakob Stoklund Olesen // That won't happen in legal code. 862da53370241fdd1b5c291483311b34e609f06c73Jakob Stoklund Olesen setSubReg(0); 872da53370241fdd1b5c291483311b34e609f06c73Jakob Stoklund Olesen } 882da53370241fdd1b5c291483311b34e609f06c73Jakob Stoklund Olesen setReg(Reg); 892da53370241fdd1b5c291483311b34e609f06c73Jakob Stoklund Olesen} 902da53370241fdd1b5c291483311b34e609f06c73Jakob Stoklund Olesen 91d6397eba2389e8a24d37aa56e049187c1ee75f4fJakob Stoklund Olesen/// Change a def to a use, or a use to a def. 92d6397eba2389e8a24d37aa56e049187c1ee75f4fJakob Stoklund Olesenvoid MachineOperand::setIsDef(bool Val) { 93d6397eba2389e8a24d37aa56e049187c1ee75f4fJakob Stoklund Olesen assert(isReg() && "Wrong MachineOperand accessor"); 94d6397eba2389e8a24d37aa56e049187c1ee75f4fJakob Stoklund Olesen assert((!Val || !isDebug()) && "Marking a debug operation as def"); 95d6397eba2389e8a24d37aa56e049187c1ee75f4fJakob Stoklund Olesen if (IsDef == Val) 96d6397eba2389e8a24d37aa56e049187c1ee75f4fJakob Stoklund Olesen return; 97d6397eba2389e8a24d37aa56e049187c1ee75f4fJakob Stoklund Olesen // MRI may keep uses and defs in different list positions. 98d6397eba2389e8a24d37aa56e049187c1ee75f4fJakob Stoklund Olesen if (MachineInstr *MI = getParent()) 99d6397eba2389e8a24d37aa56e049187c1ee75f4fJakob Stoklund Olesen if (MachineBasicBlock *MBB = MI->getParent()) 100d6397eba2389e8a24d37aa56e049187c1ee75f4fJakob Stoklund Olesen if (MachineFunction *MF = MBB->getParent()) { 101d6397eba2389e8a24d37aa56e049187c1ee75f4fJakob Stoklund Olesen MachineRegisterInfo &MRI = MF->getRegInfo(); 102d6397eba2389e8a24d37aa56e049187c1ee75f4fJakob Stoklund Olesen MRI.removeRegOperandFromUseList(this); 103d6397eba2389e8a24d37aa56e049187c1ee75f4fJakob Stoklund Olesen IsDef = Val; 104d6397eba2389e8a24d37aa56e049187c1ee75f4fJakob Stoklund Olesen MRI.addRegOperandToUseList(this); 105d6397eba2389e8a24d37aa56e049187c1ee75f4fJakob Stoklund Olesen return; 106d6397eba2389e8a24d37aa56e049187c1ee75f4fJakob Stoklund Olesen } 107d6397eba2389e8a24d37aa56e049187c1ee75f4fJakob Stoklund Olesen IsDef = Val; 108d6397eba2389e8a24d37aa56e049187c1ee75f4fJakob Stoklund Olesen} 109d6397eba2389e8a24d37aa56e049187c1ee75f4fJakob Stoklund Olesen 11062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// ChangeToImmediate - Replace this operand with a new immediate operand of 11162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// the specified value. If an operand is known to be an immediate already, 11262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// the setImm method should be used. 11362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattnervoid MachineOperand::ChangeToImmediate(int64_t ImmVal) { 114699ac049517285d978ed607b2735976c5ae97ac0Jakob Stoklund Olesen assert((!isReg() || !isTied()) && "Cannot change a tied operand into an imm"); 11562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // If this operand is currently a register operand, and if this is in a 11662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // function, deregister the operand from the register's use/def list. 117ff2b99afc8cbc6cfa73181072888e0f9f07deb7eJakob Stoklund Olesen if (isReg() && isOnRegUseList()) 118ff2b99afc8cbc6cfa73181072888e0f9f07deb7eJakob Stoklund Olesen if (MachineInstr *MI = getParent()) 119ff2b99afc8cbc6cfa73181072888e0f9f07deb7eJakob Stoklund Olesen if (MachineBasicBlock *MBB = MI->getParent()) 120ff2b99afc8cbc6cfa73181072888e0f9f07deb7eJakob Stoklund Olesen if (MachineFunction *MF = MBB->getParent()) 121ff2b99afc8cbc6cfa73181072888e0f9f07deb7eJakob Stoklund Olesen MF->getRegInfo().removeRegOperandFromUseList(this); 122ee61d67c2f1105e23b2ea5110389f3b7b713b504Jim Grosbach 12362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner OpKind = MO_Immediate; 12462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Contents.ImmVal = ImmVal; 12562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner} 12662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 12762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// ChangeToRegister - Replace this operand with a new register operand of 12862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// the specified value. If an operand is known to be an register already, 12962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// the setReg method should be used. 13062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattnervoid MachineOperand::ChangeToRegister(unsigned Reg, bool isDef, bool isImp, 1319653f9ec970147a12216d787078eab2f8b9c122aDale Johannesen bool isKill, bool isDead, bool isUndef, 1329653f9ec970147a12216d787078eab2f8b9c122aDale Johannesen bool isDebug) { 133d6397eba2389e8a24d37aa56e049187c1ee75f4fJakob Stoklund Olesen MachineRegisterInfo *RegInfo = 0; 134d6397eba2389e8a24d37aa56e049187c1ee75f4fJakob Stoklund Olesen if (MachineInstr *MI = getParent()) 135d6397eba2389e8a24d37aa56e049187c1ee75f4fJakob Stoklund Olesen if (MachineBasicBlock *MBB = MI->getParent()) 136d6397eba2389e8a24d37aa56e049187c1ee75f4fJakob Stoklund Olesen if (MachineFunction *MF = MBB->getParent()) 137d6397eba2389e8a24d37aa56e049187c1ee75f4fJakob Stoklund Olesen RegInfo = &MF->getRegInfo(); 138d6397eba2389e8a24d37aa56e049187c1ee75f4fJakob Stoklund Olesen // If this operand is already a register operand, remove it from the 13962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // register's use/def lists. 140699ac049517285d978ed607b2735976c5ae97ac0Jakob Stoklund Olesen bool WasReg = isReg(); 141699ac049517285d978ed607b2735976c5ae97ac0Jakob Stoklund Olesen if (RegInfo && WasReg) 142d6397eba2389e8a24d37aa56e049187c1ee75f4fJakob Stoklund Olesen RegInfo->removeRegOperandFromUseList(this); 14362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 144d6397eba2389e8a24d37aa56e049187c1ee75f4fJakob Stoklund Olesen // Change this to a register and set the reg#. 145d6397eba2389e8a24d37aa56e049187c1ee75f4fJakob Stoklund Olesen OpKind = MO_Register; 146d6397eba2389e8a24d37aa56e049187c1ee75f4fJakob Stoklund Olesen SmallContents.RegNo = Reg; 147d6397eba2389e8a24d37aa56e049187c1ee75f4fJakob Stoklund Olesen SubReg = 0; 14862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner IsDef = isDef; 14962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner IsImp = isImp; 15062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner IsKill = isKill; 15162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner IsDead = isDead; 1524784f1fc73abf6005b7b7262d395af71b57b1255Evan Cheng IsUndef = isUndef; 1532068215e8515203ab4839ee494cdc53dfd0cdf02Jakob Stoklund Olesen IsInternalRead = false; 154e009180f2bbcf5edbe3b583936c37c4b3be2d082Dale Johannesen IsEarlyClobber = false; 1559653f9ec970147a12216d787078eab2f8b9c122aDale Johannesen IsDebug = isDebug; 156d6397eba2389e8a24d37aa56e049187c1ee75f4fJakob Stoklund Olesen // Ensure isOnRegUseList() returns false. 157d6397eba2389e8a24d37aa56e049187c1ee75f4fJakob Stoklund Olesen Contents.Reg.Prev = 0; 1589c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen // Preserve the tie when the operand was already a register. 159699ac049517285d978ed607b2735976c5ae97ac0Jakob Stoklund Olesen if (!WasReg) 1609c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen TiedTo = 0; 161d6397eba2389e8a24d37aa56e049187c1ee75f4fJakob Stoklund Olesen 162d6397eba2389e8a24d37aa56e049187c1ee75f4fJakob Stoklund Olesen // If this operand is embedded in a function, add the operand to the 163d6397eba2389e8a24d37aa56e049187c1ee75f4fJakob Stoklund Olesen // register's use/def list. 164d6397eba2389e8a24d37aa56e049187c1ee75f4fJakob Stoklund Olesen if (RegInfo) 165d6397eba2389e8a24d37aa56e049187c1ee75f4fJakob Stoklund Olesen RegInfo->addRegOperandToUseList(this); 16662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner} 16762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 168f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner/// isIdenticalTo - Return true if this operand is identical to the specified 169d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth/// operand. Note that this should stay in sync with the hash_value overload 170d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth/// below. 171f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattnerbool MachineOperand::isIdenticalTo(const MachineOperand &Other) const { 17231530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner if (getType() != Other.getType() || 17331530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner getTargetFlags() != Other.getTargetFlags()) 17431530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner return false; 175ee61d67c2f1105e23b2ea5110389f3b7b713b504Jim Grosbach 176f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner switch (getType()) { 177f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_Register: 178f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner return getReg() == Other.getReg() && isDef() == Other.isDef() && 179f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner getSubReg() == Other.getSubReg(); 180f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_Immediate: 181f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner return getImm() == Other.getImm(); 182c20fb63ebdbc8caec4566eaa7bc5be7f0a14cca1Cameron Zwarich case MachineOperand::MO_CImmediate: 183c20fb63ebdbc8caec4566eaa7bc5be7f0a14cca1Cameron Zwarich return getCImm() == Other.getCImm(); 184e8b7ccf0c9a06831266d690d0b10ead71e0a4ac5Nate Begeman case MachineOperand::MO_FPImmediate: 185e8b7ccf0c9a06831266d690d0b10ead71e0a4ac5Nate Begeman return getFPImm() == Other.getFPImm(); 186f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_MachineBasicBlock: 187f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner return getMBB() == Other.getMBB(); 188f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_FrameIndex: 1898aa797aa51cd4ea1ec6f46f4891a6897944b75b2Chris Lattner return getIndex() == Other.getIndex(); 190f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_ConstantPoolIndex: 1910b40d09ff6b1facd0fe81e50ee0271e035488520Jakob Stoklund Olesen case MachineOperand::MO_TargetIndex: 1928aa797aa51cd4ea1ec6f46f4891a6897944b75b2Chris Lattner return getIndex() == Other.getIndex() && getOffset() == Other.getOffset(); 193f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_JumpTableIndex: 1948aa797aa51cd4ea1ec6f46f4891a6897944b75b2Chris Lattner return getIndex() == Other.getIndex(); 195f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_GlobalAddress: 196f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner return getGlobal() == Other.getGlobal() && getOffset() == Other.getOffset(); 197f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_ExternalSymbol: 198f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner return !strcmp(getSymbolName(), Other.getSymbolName()) && 199f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner getOffset() == Other.getOffset(); 2008c2b52552c90f39e4b2fed43e309e599e742b6acDan Gohman case MachineOperand::MO_BlockAddress: 2016c7ccaa3fd1d6e96d0bf922554b09d2b17c3b0e3Michael Liao return getBlockAddress() == Other.getBlockAddress() && 2026c7ccaa3fd1d6e96d0bf922554b09d2b17c3b0e3Michael Liao getOffset() == Other.getOffset(); 2037739cad69d2590f556afc9fc3048f967b5a3f4f6Jakob Stoklund Olesen case MO_RegisterMask: 2047739cad69d2590f556afc9fc3048f967b5a3f4f6Jakob Stoklund Olesen return getRegMask() == Other.getRegMask(); 20572aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner case MachineOperand::MO_MCSymbol: 20672aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner return getMCSymbol() == Other.getMCSymbol(); 20724ad3ed71fe93059d1b46ffdbfe63259762bf547Chris Lattner case MachineOperand::MO_Metadata: 20824ad3ed71fe93059d1b46ffdbfe63259762bf547Chris Lattner return getMetadata() == Other.getMetadata(); 209f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner } 210732f05c41f177a0bc4d47e93a5d02120f146cb4cChandler Carruth llvm_unreachable("Invalid machine operand type"); 211f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner} 212f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner 213d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth// Note: this must stay exactly in sync with isIdenticalTo above. 214d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruthhash_code llvm::hash_value(const MachineOperand &MO) { 215d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth switch (MO.getType()) { 216d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth case MachineOperand::MO_Register: 217190e342cbcb1456ebb21b53a35cfefa99435bd65Jakob Stoklund Olesen // Register operands don't have target flags. 218190e342cbcb1456ebb21b53a35cfefa99435bd65Jakob Stoklund Olesen return hash_combine(MO.getType(), MO.getReg(), MO.getSubReg(), MO.isDef()); 219d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth case MachineOperand::MO_Immediate: 220d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth return hash_combine(MO.getType(), MO.getTargetFlags(), MO.getImm()); 221d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth case MachineOperand::MO_CImmediate: 222d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth return hash_combine(MO.getType(), MO.getTargetFlags(), MO.getCImm()); 223d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth case MachineOperand::MO_FPImmediate: 224d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth return hash_combine(MO.getType(), MO.getTargetFlags(), MO.getFPImm()); 225d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth case MachineOperand::MO_MachineBasicBlock: 226d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth return hash_combine(MO.getType(), MO.getTargetFlags(), MO.getMBB()); 227d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth case MachineOperand::MO_FrameIndex: 228d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth return hash_combine(MO.getType(), MO.getTargetFlags(), MO.getIndex()); 229d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth case MachineOperand::MO_ConstantPoolIndex: 2300b40d09ff6b1facd0fe81e50ee0271e035488520Jakob Stoklund Olesen case MachineOperand::MO_TargetIndex: 231d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth return hash_combine(MO.getType(), MO.getTargetFlags(), MO.getIndex(), 232d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth MO.getOffset()); 233d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth case MachineOperand::MO_JumpTableIndex: 234d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth return hash_combine(MO.getType(), MO.getTargetFlags(), MO.getIndex()); 235d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth case MachineOperand::MO_ExternalSymbol: 236d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth return hash_combine(MO.getType(), MO.getTargetFlags(), MO.getOffset(), 237d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth MO.getSymbolName()); 238d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth case MachineOperand::MO_GlobalAddress: 239d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth return hash_combine(MO.getType(), MO.getTargetFlags(), MO.getGlobal(), 240d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth MO.getOffset()); 241d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth case MachineOperand::MO_BlockAddress: 242d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth return hash_combine(MO.getType(), MO.getTargetFlags(), 2436c7ccaa3fd1d6e96d0bf922554b09d2b17c3b0e3Michael Liao MO.getBlockAddress(), MO.getOffset()); 244d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth case MachineOperand::MO_RegisterMask: 245d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth return hash_combine(MO.getType(), MO.getTargetFlags(), MO.getRegMask()); 246d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth case MachineOperand::MO_Metadata: 247d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth return hash_combine(MO.getType(), MO.getTargetFlags(), MO.getMetadata()); 248d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth case MachineOperand::MO_MCSymbol: 249d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth return hash_combine(MO.getType(), MO.getTargetFlags(), MO.getMCSymbol()); 250d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth } 251d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth llvm_unreachable("Invalid machine operand type"); 252d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth} 253d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth 254f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner/// print - Print the specified machine operand. 255f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner/// 2565ca6bd14a00ba5310ce1a632d3a0cc8f8af31433Mon P Wangvoid MachineOperand::print(raw_ostream &OS, const TargetMachine *TM) const { 25780f6c5898113806130975fd56d24929b06bf54f8Dan Gohman // If the instruction is embedded into a basic block, we can find the 25880f6c5898113806130975fd56d24929b06bf54f8Dan Gohman // target info for the instruction. 25980f6c5898113806130975fd56d24929b06bf54f8Dan Gohman if (!TM) 26080f6c5898113806130975fd56d24929b06bf54f8Dan Gohman if (const MachineInstr *MI = getParent()) 26180f6c5898113806130975fd56d24929b06bf54f8Dan Gohman if (const MachineBasicBlock *MBB = MI->getParent()) 26280f6c5898113806130975fd56d24929b06bf54f8Dan Gohman if (const MachineFunction *MF = MBB->getParent()) 26380f6c5898113806130975fd56d24929b06bf54f8Dan Gohman TM = &MF->getTarget(); 2644314268128be6d54c9a7f0709680e5a5b40f3ab3Jakob Stoklund Olesen const TargetRegisterInfo *TRI = TM ? TM->getRegisterInfo() : 0; 26580f6c5898113806130975fd56d24929b06bf54f8Dan Gohman 266f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner switch (getType()) { 267f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_Register: 2684314268128be6d54c9a7f0709680e5a5b40f3ab3Jakob Stoklund Olesen OS << PrintReg(getReg(), TRI, getSubReg()); 2692ccc83966914593d98af5671ce10a3bf2dcf7513Dan Gohman 2704784f1fc73abf6005b7b7262d395af71b57b1255Evan Cheng if (isDef() || isKill() || isDead() || isImplicit() || isUndef() || 2714ba6916a98fffd9dedac5945ac51d40c8948069eJakob Stoklund Olesen isInternalRead() || isEarlyClobber() || isTied()) { 27231530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner OS << '<'; 273f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner bool NeedComma = false; 2740789707c49135bba69e0e308d0fbc41bb7cbe78aEvan Cheng if (isDef()) { 27531530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner if (NeedComma) OS << ','; 276913d3dfac43f29921467f33aa743f28ee1bfc5d1Dale Johannesen if (isEarlyClobber()) 277913d3dfac43f29921467f33aa743f28ee1bfc5d1Dale Johannesen OS << "earlyclobber,"; 2780789707c49135bba69e0e308d0fbc41bb7cbe78aEvan Cheng if (isImplicit()) 2790789707c49135bba69e0e308d0fbc41bb7cbe78aEvan Cheng OS << "imp-"; 280f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner OS << "def"; 281f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner NeedComma = true; 2823429c7571e87ca6070ceb1b44b1f367ce23c99f9Jakob Stoklund Olesen // <def,read-undef> only makes sense when getSubReg() is set. 2833429c7571e87ca6070ceb1b44b1f367ce23c99f9Jakob Stoklund Olesen // Don't clutter the output otherwise. 2843429c7571e87ca6070ceb1b44b1f367ce23c99f9Jakob Stoklund Olesen if (isUndef() && getSubReg()) 2853429c7571e87ca6070ceb1b44b1f367ce23c99f9Jakob Stoklund Olesen OS << ",read-undef"; 2865affca0763836e15ca15e78ed3a0fd56ef6b2e92Evan Cheng } else if (isImplicit()) { 2870789707c49135bba69e0e308d0fbc41bb7cbe78aEvan Cheng OS << "imp-use"; 2885affca0763836e15ca15e78ed3a0fd56ef6b2e92Evan Cheng NeedComma = true; 2895affca0763836e15ca15e78ed3a0fd56ef6b2e92Evan Cheng } 2900789707c49135bba69e0e308d0fbc41bb7cbe78aEvan Cheng 2914ba6916a98fffd9dedac5945ac51d40c8948069eJakob Stoklund Olesen if (isKill()) { 29231530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner if (NeedComma) OS << ','; 2934ba6916a98fffd9dedac5945ac51d40c8948069eJakob Stoklund Olesen OS << "kill"; 2944ba6916a98fffd9dedac5945ac51d40c8948069eJakob Stoklund Olesen NeedComma = true; 2954ba6916a98fffd9dedac5945ac51d40c8948069eJakob Stoklund Olesen } 2964ba6916a98fffd9dedac5945ac51d40c8948069eJakob Stoklund Olesen if (isDead()) { 2974ba6916a98fffd9dedac5945ac51d40c8948069eJakob Stoklund Olesen if (NeedComma) OS << ','; 2984ba6916a98fffd9dedac5945ac51d40c8948069eJakob Stoklund Olesen OS << "dead"; 2994ba6916a98fffd9dedac5945ac51d40c8948069eJakob Stoklund Olesen NeedComma = true; 3004ba6916a98fffd9dedac5945ac51d40c8948069eJakob Stoklund Olesen } 3014ba6916a98fffd9dedac5945ac51d40c8948069eJakob Stoklund Olesen if (isUndef() && isUse()) { 3024ba6916a98fffd9dedac5945ac51d40c8948069eJakob Stoklund Olesen if (NeedComma) OS << ','; 3034ba6916a98fffd9dedac5945ac51d40c8948069eJakob Stoklund Olesen OS << "undef"; 3044ba6916a98fffd9dedac5945ac51d40c8948069eJakob Stoklund Olesen NeedComma = true; 3054ba6916a98fffd9dedac5945ac51d40c8948069eJakob Stoklund Olesen } 3064ba6916a98fffd9dedac5945ac51d40c8948069eJakob Stoklund Olesen if (isInternalRead()) { 3074ba6916a98fffd9dedac5945ac51d40c8948069eJakob Stoklund Olesen if (NeedComma) OS << ','; 3084ba6916a98fffd9dedac5945ac51d40c8948069eJakob Stoklund Olesen OS << "internal"; 3094ba6916a98fffd9dedac5945ac51d40c8948069eJakob Stoklund Olesen NeedComma = true; 3104ba6916a98fffd9dedac5945ac51d40c8948069eJakob Stoklund Olesen } 3114ba6916a98fffd9dedac5945ac51d40c8948069eJakob Stoklund Olesen if (isTied()) { 3124ba6916a98fffd9dedac5945ac51d40c8948069eJakob Stoklund Olesen if (NeedComma) OS << ','; 3134ba6916a98fffd9dedac5945ac51d40c8948069eJakob Stoklund Olesen OS << "tied"; 3149c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen if (TiedTo != 15) 3159c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen OS << unsigned(TiedTo - 1); 3164ba6916a98fffd9dedac5945ac51d40c8948069eJakob Stoklund Olesen NeedComma = true; 317f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner } 31831530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner OS << '>'; 319f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner } 320f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner break; 321f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_Immediate: 322f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner OS << getImm(); 323f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner break; 3248594d429e02c688d428036f8563f09572da3fbffDevang Patel case MachineOperand::MO_CImmediate: 3258594d429e02c688d428036f8563f09572da3fbffDevang Patel getCImm()->getValue().print(OS, false); 3268594d429e02c688d428036f8563f09572da3fbffDevang Patel break; 327e8b7ccf0c9a06831266d690d0b10ead71e0a4ac5Nate Begeman case MachineOperand::MO_FPImmediate: 328cf0fe8d813727383d630055bb9d1cde21b00b7e7Chris Lattner if (getFPImm()->getType()->isFloatTy()) 329e8b7ccf0c9a06831266d690d0b10ead71e0a4ac5Nate Begeman OS << getFPImm()->getValueAPF().convertToFloat(); 33031530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner else 331e8b7ccf0c9a06831266d690d0b10ead71e0a4ac5Nate Begeman OS << getFPImm()->getValueAPF().convertToDouble(); 332e8b7ccf0c9a06831266d690d0b10ead71e0a4ac5Nate Begeman break; 333f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_MachineBasicBlock: 3340ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman OS << "<BB#" << getMBB()->getNumber() << ">"; 335f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner break; 336f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_FrameIndex: 33731530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner OS << "<fi#" << getIndex() << '>'; 338f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner break; 339f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_ConstantPoolIndex: 3408aa797aa51cd4ea1ec6f46f4891a6897944b75b2Chris Lattner OS << "<cp#" << getIndex(); 341f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner if (getOffset()) OS << "+" << getOffset(); 34231530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner OS << '>'; 343f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner break; 3440b40d09ff6b1facd0fe81e50ee0271e035488520Jakob Stoklund Olesen case MachineOperand::MO_TargetIndex: 3450b40d09ff6b1facd0fe81e50ee0271e035488520Jakob Stoklund Olesen OS << "<ti#" << getIndex(); 3460b40d09ff6b1facd0fe81e50ee0271e035488520Jakob Stoklund Olesen if (getOffset()) OS << "+" << getOffset(); 3470b40d09ff6b1facd0fe81e50ee0271e035488520Jakob Stoklund Olesen OS << '>'; 3480b40d09ff6b1facd0fe81e50ee0271e035488520Jakob Stoklund Olesen break; 349f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_JumpTableIndex: 35031530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner OS << "<jt#" << getIndex() << '>'; 351f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner break; 352f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_GlobalAddress: 3538d4e3b5b48b245ed65259270a53fcaf0bf91d9f7Dan Gohman OS << "<ga:"; 3548d4e3b5b48b245ed65259270a53fcaf0bf91d9f7Dan Gohman WriteAsOperand(OS, getGlobal(), /*PrintType=*/false); 355f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner if (getOffset()) OS << "+" << getOffset(); 35631530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner OS << '>'; 357f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner break; 358f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_ExternalSymbol: 359f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner OS << "<es:" << getSymbolName(); 360f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner if (getOffset()) OS << "+" << getOffset(); 36131530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner OS << '>'; 362f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner break; 3638c2b52552c90f39e4b2fed43e309e599e742b6acDan Gohman case MachineOperand::MO_BlockAddress: 3645f72a5ebc84a1935878b5b2d3166a505c520cdfcDale Johannesen OS << '<'; 3650ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman WriteAsOperand(OS, getBlockAddress(), /*PrintType=*/false); 3666c7ccaa3fd1d6e96d0bf922554b09d2b17c3b0e3Michael Liao if (getOffset()) OS << "+" << getOffset(); 3678c2b52552c90f39e4b2fed43e309e599e742b6acDan Gohman OS << '>'; 3688c2b52552c90f39e4b2fed43e309e599e742b6acDan Gohman break; 3697739cad69d2590f556afc9fc3048f967b5a3f4f6Jakob Stoklund Olesen case MachineOperand::MO_RegisterMask: 370478a8a02bc0f2e739ed8f4240152e99837e480b9Jakob Stoklund Olesen OS << "<regmask>"; 3717739cad69d2590f556afc9fc3048f967b5a3f4f6Jakob Stoklund Olesen break; 3725f72a5ebc84a1935878b5b2d3166a505c520cdfcDale Johannesen case MachineOperand::MO_Metadata: 3735f72a5ebc84a1935878b5b2d3166a505c520cdfcDale Johannesen OS << '<'; 3745f72a5ebc84a1935878b5b2d3166a505c520cdfcDale Johannesen WriteAsOperand(OS, getMetadata(), /*PrintType=*/false); 3755f72a5ebc84a1935878b5b2d3166a505c520cdfcDale Johannesen OS << '>'; 3765f72a5ebc84a1935878b5b2d3166a505c520cdfcDale Johannesen break; 37772aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner case MachineOperand::MO_MCSymbol: 37872aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner OS << "<MCSym=" << *getMCSymbol() << '>'; 37972aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner break; 380f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner } 381ee61d67c2f1105e23b2ea5110389f3b7b713b504Jim Grosbach 38231530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner if (unsigned TF = getTargetFlags()) 38331530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner OS << "[TF=" << TF << ']'; 384f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner} 385f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner 386f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner//===----------------------------------------------------------------------===// 387ce42e404a26454f4332c2c350c75ad27bbbb16f7Dan Gohman// MachineMemOperand Implementation 388ce42e404a26454f4332c2c350c75ad27bbbb16f7Dan Gohman//===----------------------------------------------------------------------===// 389ce42e404a26454f4332c2c350c75ad27bbbb16f7Dan Gohman 39040a858f6e71ed8d68779d00c63dad15baded3562Chris Lattner/// getAddrSpace - Return the LLVM IR address space number that this pointer 39140a858f6e71ed8d68779d00c63dad15baded3562Chris Lattner/// points into. 39240a858f6e71ed8d68779d00c63dad15baded3562Chris Lattnerunsigned MachinePointerInfo::getAddrSpace() const { 39340a858f6e71ed8d68779d00c63dad15baded3562Chris Lattner if (V == 0) return 0; 39440a858f6e71ed8d68779d00c63dad15baded3562Chris Lattner return cast<PointerType>(V->getType())->getAddressSpace(); 39540a858f6e71ed8d68779d00c63dad15baded3562Chris Lattner} 39640a858f6e71ed8d68779d00c63dad15baded3562Chris Lattner 397e8639036b1fb3a5b5e9589fe4e9f2ee1b77c36bdChris Lattner/// getConstantPool - Return a MachinePointerInfo record that refers to the 398e8639036b1fb3a5b5e9589fe4e9f2ee1b77c36bdChris Lattner/// constant pool. 399e8639036b1fb3a5b5e9589fe4e9f2ee1b77c36bdChris LattnerMachinePointerInfo MachinePointerInfo::getConstantPool() { 400e8639036b1fb3a5b5e9589fe4e9f2ee1b77c36bdChris Lattner return MachinePointerInfo(PseudoSourceValue::getConstantPool()); 401e8639036b1fb3a5b5e9589fe4e9f2ee1b77c36bdChris Lattner} 402e8639036b1fb3a5b5e9589fe4e9f2ee1b77c36bdChris Lattner 403e8639036b1fb3a5b5e9589fe4e9f2ee1b77c36bdChris Lattner/// getFixedStack - Return a MachinePointerInfo record that refers to the 404e8639036b1fb3a5b5e9589fe4e9f2ee1b77c36bdChris Lattner/// the specified FrameIndex. 405e8639036b1fb3a5b5e9589fe4e9f2ee1b77c36bdChris LattnerMachinePointerInfo MachinePointerInfo::getFixedStack(int FI, int64_t offset) { 406e8639036b1fb3a5b5e9589fe4e9f2ee1b77c36bdChris Lattner return MachinePointerInfo(PseudoSourceValue::getFixedStack(FI), offset); 407e8639036b1fb3a5b5e9589fe4e9f2ee1b77c36bdChris Lattner} 408e8639036b1fb3a5b5e9589fe4e9f2ee1b77c36bdChris Lattner 4091daa6f479dd5fb4123f1ffbb10a3825da7d2c6b8Chris LattnerMachinePointerInfo MachinePointerInfo::getJumpTable() { 4101daa6f479dd5fb4123f1ffbb10a3825da7d2c6b8Chris Lattner return MachinePointerInfo(PseudoSourceValue::getJumpTable()); 4111daa6f479dd5fb4123f1ffbb10a3825da7d2c6b8Chris Lattner} 4121daa6f479dd5fb4123f1ffbb10a3825da7d2c6b8Chris Lattner 4131daa6f479dd5fb4123f1ffbb10a3825da7d2c6b8Chris LattnerMachinePointerInfo MachinePointerInfo::getGOT() { 4141daa6f479dd5fb4123f1ffbb10a3825da7d2c6b8Chris Lattner return MachinePointerInfo(PseudoSourceValue::getGOT()); 4151daa6f479dd5fb4123f1ffbb10a3825da7d2c6b8Chris Lattner} 41640a858f6e71ed8d68779d00c63dad15baded3562Chris Lattner 417fc448ff89b4fb7721de9da0b96fd00c13160c4c7Chris LattnerMachinePointerInfo MachinePointerInfo::getStack(int64_t Offset) { 418fc448ff89b4fb7721de9da0b96fd00c13160c4c7Chris Lattner return MachinePointerInfo(PseudoSourceValue::getStack(), Offset); 419fc448ff89b4fb7721de9da0b96fd00c13160c4c7Chris Lattner} 420fc448ff89b4fb7721de9da0b96fd00c13160c4c7Chris Lattner 421da39c3964423744b4d79aebef8bece3e9141d5fcChris LattnerMachineMemOperand::MachineMemOperand(MachinePointerInfo ptrinfo, unsigned f, 422f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman uint64_t s, unsigned int a, 42395d594cac3737ae1594a391276942a443cac426bRafael Espindola const MDNode *TBAAInfo, 42495d594cac3737ae1594a391276942a443cac426bRafael Espindola const MDNode *Ranges) 425da39c3964423744b4d79aebef8bece3e9141d5fcChris Lattner : PtrInfo(ptrinfo), Size(s), 426f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman Flags((f & ((1 << MOMaxBits) - 1)) | ((Log2_32(a) + 1) << MOMaxBits)), 42795d594cac3737ae1594a391276942a443cac426bRafael Espindola TBAAInfo(TBAAInfo), Ranges(Ranges) { 428da39c3964423744b4d79aebef8bece3e9141d5fcChris Lattner assert((PtrInfo.V == 0 || isa<PointerType>(PtrInfo.V->getType())) && 429da39c3964423744b4d79aebef8bece3e9141d5fcChris Lattner "invalid pointer value"); 43028f02fdd76f4efc05d14649e0eec90ce8e71e17eDan Gohman assert(getBaseAlignment() == a && "Alignment is not a power of 2!"); 431c5e1f98fdf44993c2bfe4c1ef633b2358cd718c1Dan Gohman assert((isLoad() || isStore()) && "Not a load/store!"); 432ce42e404a26454f4332c2c350c75ad27bbbb16f7Dan Gohman} 433ce42e404a26454f4332c2c350c75ad27bbbb16f7Dan Gohman 434b8d2f550b84523e8a73198f98e5d450ec3b4fee7Dan Gohman/// Profile - Gather unique data for the object. 435b8d2f550b84523e8a73198f98e5d450ec3b4fee7Dan Gohman/// 436b8d2f550b84523e8a73198f98e5d450ec3b4fee7Dan Gohmanvoid MachineMemOperand::Profile(FoldingSetNodeID &ID) const { 437e8e2e80f40495fdd5ad475beb54fcf0989b6b7c5Chris Lattner ID.AddInteger(getOffset()); 438b8d2f550b84523e8a73198f98e5d450ec3b4fee7Dan Gohman ID.AddInteger(Size); 439e8e2e80f40495fdd5ad475beb54fcf0989b6b7c5Chris Lattner ID.AddPointer(getValue()); 440b8d2f550b84523e8a73198f98e5d450ec3b4fee7Dan Gohman ID.AddInteger(Flags); 441b8d2f550b84523e8a73198f98e5d450ec3b4fee7Dan Gohman} 442b8d2f550b84523e8a73198f98e5d450ec3b4fee7Dan Gohman 443c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohmanvoid MachineMemOperand::refineAlignment(const MachineMemOperand *MMO) { 444c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman // The Value and Offset may differ due to CSE. But the flags and size 445c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman // should be the same. 446c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman assert(MMO->getFlags() == getFlags() && "Flags mismatch!"); 447c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman assert(MMO->getSize() == getSize() && "Size mismatch!"); 448c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman 449c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman if (MMO->getBaseAlignment() >= getBaseAlignment()) { 450c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman // Update the alignment value. 451ba2b297ca53cd685ba397177e9d2d8c239da971eDavid Greene Flags = (Flags & ((1 << MOMaxBits) - 1)) | 452ba2b297ca53cd685ba397177e9d2d8c239da971eDavid Greene ((Log2_32(MMO->getBaseAlignment()) + 1) << MOMaxBits); 453c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman // Also update the base and offset, because the new alignment may 454c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman // not be applicable with the old ones. 455e8e2e80f40495fdd5ad475beb54fcf0989b6b7c5Chris Lattner PtrInfo = MMO->PtrInfo; 456c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman } 457c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman} 458c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman 4594b2ebc19288491cb068f268c311d9fef0ec6a29fDan Gohman/// getAlignment - Return the minimum known alignment in bytes of the 4604b2ebc19288491cb068f268c311d9fef0ec6a29fDan Gohman/// actual memory reference. 4614b2ebc19288491cb068f268c311d9fef0ec6a29fDan Gohmanuint64_t MachineMemOperand::getAlignment() const { 4624b2ebc19288491cb068f268c311d9fef0ec6a29fDan Gohman return MinAlign(getBaseAlignment(), getOffset()); 4634b2ebc19288491cb068f268c311d9fef0ec6a29fDan Gohman} 4644b2ebc19288491cb068f268c311d9fef0ec6a29fDan Gohman 465c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohmanraw_ostream &llvm::operator<<(raw_ostream &OS, const MachineMemOperand &MMO) { 466c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman assert((MMO.isLoad() || MMO.isStore()) && 467cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman "SV has to be a load, store or both."); 468ee61d67c2f1105e23b2ea5110389f3b7b713b504Jim Grosbach 469c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman if (MMO.isVolatile()) 470cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman OS << "Volatile "; 471cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman 472c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman if (MMO.isLoad()) 473cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman OS << "LD"; 474c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman if (MMO.isStore()) 475cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman OS << "ST"; 476c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman OS << MMO.getSize(); 477ee61d67c2f1105e23b2ea5110389f3b7b713b504Jim Grosbach 478cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman // Print the address information. 479cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman OS << "["; 480c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman if (!MMO.getValue()) 481cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman OS << "<unknown>"; 482cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman else 483c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman WriteAsOperand(OS, MMO.getValue(), /*PrintType=*/false); 484cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman 485cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman // If the alignment of the memory reference itself differs from the alignment 486cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman // of the base pointer, print the base alignment explicitly, next to the base 487cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman // pointer. 488c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman if (MMO.getBaseAlignment() != MMO.getAlignment()) 489c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman OS << "(align=" << MMO.getBaseAlignment() << ")"; 490cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman 491c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman if (MMO.getOffset() != 0) 492c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman OS << "+" << MMO.getOffset(); 493cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman OS << "]"; 494cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman 495cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman // Print the alignment of the reference. 496c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman if (MMO.getBaseAlignment() != MMO.getAlignment() || 497c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman MMO.getBaseAlignment() != MMO.getSize()) 498c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman OS << "(align=" << MMO.getAlignment() << ")"; 499cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman 500f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman // Print TBAA info. 501f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman if (const MDNode *TBAAInfo = MMO.getTBAAInfo()) { 502f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman OS << "(tbaa="; 503f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman if (TBAAInfo->getNumOperands() > 0) 504f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman WriteAsOperand(OS, TBAAInfo->getOperand(0), /*PrintType=*/false); 505f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman else 506f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman OS << "<unknown>"; 507f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman OS << ")"; 508f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman } 509f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman 510d65ba721cccb0d0998750908bf2533e08b106f38Bill Wendling // Print nontemporal info. 511d65ba721cccb0d0998750908bf2533e08b106f38Bill Wendling if (MMO.isNonTemporal()) 512d65ba721cccb0d0998750908bf2533e08b106f38Bill Wendling OS << "(nontemporal)"; 513d65ba721cccb0d0998750908bf2533e08b106f38Bill Wendling 514cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman return OS; 515cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman} 516cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman 517ce42e404a26454f4332c2c350c75ad27bbbb16f7Dan Gohman//===----------------------------------------------------------------------===// 518f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner// MachineInstr Implementation 519f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner//===----------------------------------------------------------------------===// 520f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner 521c0f64ffab93d11fb27a3b8a0707b77400918a20eEvan Cheng/// MachineInstr ctor - This constructor creates a dummy MachineInstr with 522e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng/// MCID NULL and no operands. 523c0f64ffab93d11fb27a3b8a0707b77400918a20eEvan ChengMachineInstr::MachineInstr() 524cc84cda91997bf6fc93512a56c3a12eecaaa2d88Jakob Stoklund Olesen : MCID(0), Flags(0), AsmPrinterFlags(0), 525861ea230a7841fe4ccc8a1cd5460354e59aeed3cBenjamin Kramer NumMemRefs(0), MemRefs(0), 526a4f2bb08de92ccec21cbb3d0a9518384b0173660Chris Lattner Parent(0) { 5272c3f7ae3843bdc9dcfe85393e178211976c1f9bdDan Gohman // Make sure that we get added to a machine basicblock 5282c3f7ae3843bdc9dcfe85393e178211976c1f9bdDan Gohman LeakDetector::addGarbageObject(this); 5297279122e668816bed0d4f38d3392bbab0140fad0Chris Lattner} 5307279122e668816bed0d4f38d3392bbab0140fad0Chris Lattner 53167f660cb080965ea93ed6d7265a67100f2fe38e4Evan Chengvoid MachineInstr::addImplicitDefUseOperands() { 532e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng if (MCID->ImplicitDefs) 533fac259814923d091942b230e7bd002a8d1130bc3Craig Topper for (const uint16_t *ImpDefs = MCID->getImplicitDefs(); *ImpDefs; ++ImpDefs) 5348019f41c0b7fda031d494e3900eada7d4e494772Chris Lattner addOperand(MachineOperand::CreateReg(*ImpDefs, true, true)); 535e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng if (MCID->ImplicitUses) 536fac259814923d091942b230e7bd002a8d1130bc3Craig Topper for (const uint16_t *ImpUses = MCID->getImplicitUses(); *ImpUses; ++ImpUses) 5378019f41c0b7fda031d494e3900eada7d4e494772Chris Lattner addOperand(MachineOperand::CreateReg(*ImpUses, false, true)); 538d7de496b23fca8145f777a56281457bf64e8bbadEvan Cheng} 539d7de496b23fca8145f777a56281457bf64e8bbadEvan Cheng 5400855cadb00c598d4e78c8f1842a9c1b9bf19c667Bob Wilson/// MachineInstr ctor - This constructor creates a MachineInstr and adds the 5410855cadb00c598d4e78c8f1842a9c1b9bf19c667Bob Wilson/// implicit operands. It reserves space for the number of operands specified by 542e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng/// the MCInstrDesc. 543e837dead3c8dc3445ef6a0e2322179c57e264a13Evan ChengMachineInstr::MachineInstr(const MCInstrDesc &tid, const DebugLoc dl, 54406efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen bool NoImp) 545cc84cda91997bf6fc93512a56c3a12eecaaa2d88Jakob Stoklund Olesen : MCID(&tid), Flags(0), AsmPrinterFlags(0), 546861ea230a7841fe4ccc8a1cd5460354e59aeed3cBenjamin Kramer NumMemRefs(0), MemRefs(0), Parent(0), debugLoc(dl) { 547cc84cda91997bf6fc93512a56c3a12eecaaa2d88Jakob Stoklund Olesen unsigned NumImplicitOps = 0; 5481793ab9e70c48146a5f1592b84b2b93e38c67fa4Bob Wilson if (!NoImp) 549e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng NumImplicitOps = MCID->getNumImplicitDefs() + MCID->getNumImplicitUses(); 550e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng Operands.reserve(NumImplicitOps + MCID->getNumOperands()); 55106efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen if (!NoImp) 55206efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen addImplicitDefUseOperands(); 55306efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen // Make sure that we get added to a machine basicblock 55406efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen LeakDetector::addGarbageObject(this); 55506efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen} 55606efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen 55706efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen/// MachineInstr ctor - Work exactly the same as the ctor two above, except 558ee61d67c2f1105e23b2ea5110389f3b7b713b504Jim Grosbach/// that the MachineInstr is created and added to the end of the specified 55906efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen/// basic block. 56006efc02854a96a9f92edc3bf46b0451f488cf2e6Dale JohannesenMachineInstr::MachineInstr(MachineBasicBlock *MBB, const DebugLoc dl, 561e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng const MCInstrDesc &tid) 562cc84cda91997bf6fc93512a56c3a12eecaaa2d88Jakob Stoklund Olesen : MCID(&tid), Flags(0), AsmPrinterFlags(0), 563861ea230a7841fe4ccc8a1cd5460354e59aeed3cBenjamin Kramer NumMemRefs(0), MemRefs(0), Parent(0), debugLoc(dl) { 564ddd7fcb887be752ec8167276a697994ad9cb9c4eChris Lattner assert(MBB && "Cannot use inserting ctor with null basic block!"); 565cc84cda91997bf6fc93512a56c3a12eecaaa2d88Jakob Stoklund Olesen unsigned NumImplicitOps = 566cc84cda91997bf6fc93512a56c3a12eecaaa2d88Jakob Stoklund Olesen MCID->getNumImplicitDefs() + MCID->getNumImplicitUses(); 567e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng Operands.reserve(NumImplicitOps + MCID->getNumOperands()); 56867f660cb080965ea93ed6d7265a67100f2fe38e4Evan Cheng addImplicitDefUseOperands(); 5692c3f7ae3843bdc9dcfe85393e178211976c1f9bdDan Gohman // Make sure that we get added to a machine basicblock 5702c3f7ae3843bdc9dcfe85393e178211976c1f9bdDan Gohman LeakDetector::addGarbageObject(this); 571ddd7fcb887be752ec8167276a697994ad9cb9c4eChris Lattner MBB->push_back(this); // Add instruction to end of basic block! 572ddd7fcb887be752ec8167276a697994ad9cb9c4eChris Lattner} 573ddd7fcb887be752ec8167276a697994ad9cb9c4eChris Lattner 574ce22e76996d3ff0930716fa60c29df60a7e0481bMisha Brukman/// MachineInstr ctor - Copies MachineInstr arg exactly 575ce22e76996d3ff0930716fa60c29df60a7e0481bMisha Brukman/// 5761ed9922794cda9dbe295e74674b909287e544632Evan ChengMachineInstr::MachineInstr(MachineFunction &MF, const MachineInstr &MI) 577cc84cda91997bf6fc93512a56c3a12eecaaa2d88Jakob Stoklund Olesen : MCID(&MI.getDesc()), Flags(0), AsmPrinterFlags(0), 578861ea230a7841fe4ccc8a1cd5460354e59aeed3cBenjamin Kramer NumMemRefs(MI.NumMemRefs), MemRefs(MI.MemRefs), 579c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman Parent(0), debugLoc(MI.getDebugLoc()) { 580943b5e117fe9a087f9aa529a2632c2d32cc22374Chris Lattner Operands.reserve(MI.getNumOperands()); 581b5159ed0cb7943e5938782f7693beb18342165ceTanya Lattner 582ce22e76996d3ff0930716fa60c29df60a7e0481bMisha Brukman // Add operands 5831ed9922794cda9dbe295e74674b909287e544632Evan Cheng for (unsigned i = 0; i != MI.getNumOperands(); ++i) 5841ed9922794cda9dbe295e74674b909287e544632Evan Cheng addOperand(MI.getOperand(i)); 5850c63e03e04d3982e1913479bba404c3debc9a27eTanya Lattner 5866dd97471c43805b3febf598d50498a09a02e93f4Anton Korobeynikov // Copy all the flags. 5876dd97471c43805b3febf598d50498a09a02e93f4Anton Korobeynikov Flags = MI.Flags; 5886dd97471c43805b3febf598d50498a09a02e93f4Anton Korobeynikov 5898e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman // Set parent to null. 590f20c1a497fe3922ac718429d65a5fe396890575eChris Lattner Parent = 0; 5916116a73da420d9b414a34ce2599dc7f6476e23fcDan Gohman 5926116a73da420d9b414a34ce2599dc7f6476e23fcDan Gohman LeakDetector::addGarbageObject(this); 593466b534a570f574ed485d875bbca8454f68dcb52Tanya Lattner} 594466b534a570f574ed485d875bbca8454f68dcb52Tanya Lattner 595ce22e76996d3ff0930716fa60c29df60a7e0481bMisha BrukmanMachineInstr::~MachineInstr() { 5962c3f7ae3843bdc9dcfe85393e178211976c1f9bdDan Gohman LeakDetector::removeGarbageObject(this); 597e12d6abfdfc5141b2001f0c369a0e1525315b9c0Chris Lattner#ifndef NDEBUG 59862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner for (unsigned i = 0, e = Operands.size(); i != e; ++i) { 599e12d6abfdfc5141b2001f0c369a0e1525315b9c0Chris Lattner assert(Operands[i].ParentMI == this && "ParentMI mismatch!"); 600d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman assert((!Operands[i].isReg() || !Operands[i].isOnRegUseList()) && 60162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner "Reg operand def/use list corrupted"); 60262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 603e12d6abfdfc5141b2001f0c369a0e1525315b9c0Chris Lattner#endif 604aad5c0505183a5b7913f1a443a1f0650122551ccAlkis Evlogimenos} 605aad5c0505183a5b7913f1a443a1f0650122551ccAlkis Evlogimenos 60662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// getRegInfo - If this instruction is embedded into a MachineFunction, 60762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// return the MachineRegisterInfo object for the current function, otherwise 60862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// return null. 60962ed6b9ade63bf01717ce5274fa11e93e873d245Chris LattnerMachineRegisterInfo *MachineInstr::getRegInfo() { 61062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (MachineBasicBlock *MBB = getParent()) 6114e526b9a5b36d9bac170c03df0a5d6fb76740ae2Dan Gohman return &MBB->getParent()->getRegInfo(); 61262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner return 0; 61362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner} 61462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 61562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// RemoveRegOperandsFromUseLists - Unlink all of the register operands in 61662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// this instruction from their respective use lists. This requires that the 61762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// operands already be on their use lists. 618ff2b99afc8cbc6cfa73181072888e0f9f07deb7eJakob Stoklund Olesenvoid MachineInstr::RemoveRegOperandsFromUseLists(MachineRegisterInfo &MRI) { 619ff2b99afc8cbc6cfa73181072888e0f9f07deb7eJakob Stoklund Olesen for (unsigned i = 0, e = Operands.size(); i != e; ++i) 620d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (Operands[i].isReg()) 621ff2b99afc8cbc6cfa73181072888e0f9f07deb7eJakob Stoklund Olesen MRI.removeRegOperandFromUseList(&Operands[i]); 62262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner} 62362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 62462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// AddRegOperandsToUseLists - Add all of the register operands in 62562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// this instruction from their respective use lists. This requires that the 62662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// operands not be on their use lists yet. 627ff2b99afc8cbc6cfa73181072888e0f9f07deb7eJakob Stoklund Olesenvoid MachineInstr::AddRegOperandsToUseLists(MachineRegisterInfo &MRI) { 628ff2b99afc8cbc6cfa73181072888e0f9f07deb7eJakob Stoklund Olesen for (unsigned i = 0, e = Operands.size(); i != e; ++i) 629d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (Operands[i].isReg()) 630ff2b99afc8cbc6cfa73181072888e0f9f07deb7eJakob Stoklund Olesen MRI.addRegOperandToUseList(&Operands[i]); 63162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner} 63262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 63362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// addOperand - Add the specified operand to the instruction. If it is an 63462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// implicit operand, it is added to the end of the operand list. If it is 63562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// an explicit operand it is added at the end of the explicit operand list 636ee61d67c2f1105e23b2ea5110389f3b7b713b504Jim Grosbach/// (before the first implicit operand). 63762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattnervoid MachineInstr::addOperand(const MachineOperand &Op) { 6383627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen assert(MCID && "Cannot add operands before providing an instr descriptor"); 639d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman bool isImpReg = Op.isReg() && Op.isImplicit(); 640bcf28c08b3f0a3c4aa1be8f1485f6452d9a2b690Dan Gohman MachineRegisterInfo *RegInfo = getRegInfo(); 641bcf28c08b3f0a3c4aa1be8f1485f6452d9a2b690Dan Gohman 6423627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen // If the Operands backing store is reallocated, all register operands must 6433627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen // be removed and re-added to RegInfo. It is storing pointers to operands. 6443627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen bool Reallocate = RegInfo && 6453627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen !Operands.empty() && Operands.size() == Operands.capacity(); 6463627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen 6473627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen // Find the insert location for the new operand. Implicit registers go at 6483627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen // the end, everything goes before the implicit regs. 6493627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen unsigned OpNo = Operands.size(); 6503627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen 6513627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen // Remove all the implicit operands from RegInfo if they need to be shifted. 6523627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen // FIXME: Allow mixed explicit and implicit operands on inline asm. 6533627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen // InstrEmitter::EmitSpecialNode() is marking inline asm clobbers as 6543627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen // implicit-defs, but they must not be moved around. See the FIXME in 6553627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen // InstrEmitter.cpp. 6563627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen if (!isImpReg && !isInlineAsm()) { 6573627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen while (OpNo && Operands[OpNo-1].isReg() && Operands[OpNo-1].isImplicit()) { 6583627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen --OpNo; 6599c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen assert(!Operands[OpNo].isTied() && "Cannot move tied operands"); 6603627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen if (RegInfo) 661ff2b99afc8cbc6cfa73181072888e0f9f07deb7eJakob Stoklund Olesen RegInfo->removeRegOperandFromUseList(&Operands[OpNo]); 66262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 66362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 664ee61d67c2f1105e23b2ea5110389f3b7b713b504Jim Grosbach 6653627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen // OpNo now points as the desired insertion point. Unless this is a variadic 6663627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen // instruction, only implicit regs are allowed beyond MCID->getNumOperands(). 66733a537a5c41e60507ac9a4ea987c1a395cbb74feJakob Stoklund Olesen // RegMask operands go between the explicit and implicit operands. 66833a537a5c41e60507ac9a4ea987c1a395cbb74feJakob Stoklund Olesen assert((isImpReg || Op.isRegMask() || MCID->isVariadic() || 66933a537a5c41e60507ac9a4ea987c1a395cbb74feJakob Stoklund Olesen OpNo < MCID->getNumOperands()) && 6703627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen "Trying to add an operand to a machine instr that is already done!"); 67162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 6723627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen // All operands from OpNo have been removed from RegInfo. If the Operands 6733627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen // backing store needs to be reallocated, we also need to remove any other 6743627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen // register operands. 6753627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen if (Reallocate) 6763627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen for (unsigned i = 0; i != OpNo; ++i) 6773627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen if (Operands[i].isReg()) 678ff2b99afc8cbc6cfa73181072888e0f9f07deb7eJakob Stoklund Olesen RegInfo->removeRegOperandFromUseList(&Operands[i]); 679ee61d67c2f1105e23b2ea5110389f3b7b713b504Jim Grosbach 6803627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen // Insert the new operand at OpNo. 6813627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen Operands.insert(Operands.begin() + OpNo, Op); 6823627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen Operands[OpNo].ParentMI = this; 683ee61d67c2f1105e23b2ea5110389f3b7b713b504Jim Grosbach 6843627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen // The Operands backing store has now been reallocated, so we can re-add the 6853627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen // operands before OpNo. 6863627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen if (Reallocate) 6873627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen for (unsigned i = 0; i != OpNo; ++i) 6883627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen if (Operands[i].isReg()) 689ff2b99afc8cbc6cfa73181072888e0f9f07deb7eJakob Stoklund Olesen RegInfo->addRegOperandToUseList(&Operands[i]); 69062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 6913627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen // When adding a register operand, tell RegInfo about it. 6923627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen if (Operands[OpNo].isReg()) { 693ff2b99afc8cbc6cfa73181072888e0f9f07deb7eJakob Stoklund Olesen // Ensure isOnRegUseList() returns false, regardless of Op's status. 694ff2b99afc8cbc6cfa73181072888e0f9f07deb7eJakob Stoklund Olesen Operands[OpNo].Contents.Reg.Prev = 0; 6959c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen // Ignore existing ties. This is not a property that can be copied. 6969c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen Operands[OpNo].TiedTo = 0; 697ff2b99afc8cbc6cfa73181072888e0f9f07deb7eJakob Stoklund Olesen // Add the new operand to RegInfo. 698ff2b99afc8cbc6cfa73181072888e0f9f07deb7eJakob Stoklund Olesen if (RegInfo) 699ff2b99afc8cbc6cfa73181072888e0f9f07deb7eJakob Stoklund Olesen RegInfo->addRegOperandToUseList(&Operands[OpNo]); 700e941df5e354ff7d327bab8e59af687ec90fdd149Jakob Stoklund Olesen // The MCID operand information isn't accurate until we start adding 701e941df5e354ff7d327bab8e59af687ec90fdd149Jakob Stoklund Olesen // explicit operands. The implicit operands are added first, then the 702e941df5e354ff7d327bab8e59af687ec90fdd149Jakob Stoklund Olesen // explicits are inserted before them. 703e941df5e354ff7d327bab8e59af687ec90fdd149Jakob Stoklund Olesen if (!isImpReg) { 7049c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen // Tie uses to defs as indicated in MCInstrDesc. 705e941df5e354ff7d327bab8e59af687ec90fdd149Jakob Stoklund Olesen if (Operands[OpNo].isUse()) { 706e941df5e354ff7d327bab8e59af687ec90fdd149Jakob Stoklund Olesen int DefIdx = MCID->getOperandConstraint(OpNo, MCOI::TIED_TO); 70794083149fd6891c8a72472cf1814fa6600a75979Jakob Stoklund Olesen if (DefIdx != -1) 70894083149fd6891c8a72472cf1814fa6600a75979Jakob Stoklund Olesen tieOperands(DefIdx, OpNo); 7094ba6916a98fffd9dedac5945ac51d40c8948069eJakob Stoklund Olesen } 710e941df5e354ff7d327bab8e59af687ec90fdd149Jakob Stoklund Olesen // If the register operand is flagged as early, mark the operand as such. 711e941df5e354ff7d327bab8e59af687ec90fdd149Jakob Stoklund Olesen if (MCID->getOperandConstraint(OpNo, MCOI::EARLY_CLOBBER) != -1) 712e941df5e354ff7d327bab8e59af687ec90fdd149Jakob Stoklund Olesen Operands[OpNo].setIsEarlyClobber(true); 7134ba6916a98fffd9dedac5945ac51d40c8948069eJakob Stoklund Olesen } 7143627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen } 715ee61d67c2f1105e23b2ea5110389f3b7b713b504Jim Grosbach 7163627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen // Re-add all the implicit ops. 7173627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen if (RegInfo) { 7183627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen for (unsigned i = OpNo + 1, e = Operands.size(); i != e; ++i) { 719d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman assert(Operands[i].isReg() && "Should only be an implicit reg!"); 720ff2b99afc8cbc6cfa73181072888e0f9f07deb7eJakob Stoklund Olesen RegInfo->addRegOperandToUseList(&Operands[i]); 72162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 72262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 72362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner} 72462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 72562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// RemoveOperand - Erase an operand from an instruction, leaving it with one 72662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// fewer operand than it started with. 72762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// 72862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattnervoid MachineInstr::RemoveOperand(unsigned OpNo) { 72962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner assert(OpNo < Operands.size() && "Invalid operand number"); 730699ac049517285d978ed607b2735976c5ae97ac0Jakob Stoklund Olesen untieRegOperand(OpNo); 731ff2b99afc8cbc6cfa73181072888e0f9f07deb7eJakob Stoklund Olesen MachineRegisterInfo *RegInfo = getRegInfo(); 732ee61d67c2f1105e23b2ea5110389f3b7b713b504Jim Grosbach 73362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Special case removing the last one. 73462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (OpNo == Operands.size()-1) { 73562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // If needed, remove from the reg def/use list. 736ff2b99afc8cbc6cfa73181072888e0f9f07deb7eJakob Stoklund Olesen if (RegInfo && Operands.back().isReg() && Operands.back().isOnRegUseList()) 737ff2b99afc8cbc6cfa73181072888e0f9f07deb7eJakob Stoklund Olesen RegInfo->removeRegOperandFromUseList(&Operands.back()); 738ee61d67c2f1105e23b2ea5110389f3b7b713b504Jim Grosbach 73962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands.pop_back(); 74062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner return; 74162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 74262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 74362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Otherwise, we are removing an interior operand. If we have reginfo to 74462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // update, remove all operands that will be shifted down from their reg lists, 74562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // move everything down, then re-add them. 74662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (RegInfo) { 74762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner for (unsigned i = OpNo, e = Operands.size(); i != e; ++i) { 748d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (Operands[i].isReg()) 749ff2b99afc8cbc6cfa73181072888e0f9f07deb7eJakob Stoklund Olesen RegInfo->removeRegOperandFromUseList(&Operands[i]); 75062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 75162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 752ee61d67c2f1105e23b2ea5110389f3b7b713b504Jim Grosbach 7539c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen#ifndef NDEBUG 7549c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen // Moving tied operands would break the ties. 7559c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen for (unsigned i = OpNo + 1, e = Operands.size(); i != e; ++i) 7569c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen if (Operands[i].isReg()) 7579c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen assert(!Operands[i].isTied() && "Cannot move tied operands"); 7589c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen#endif 7599c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen 76062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands.erase(Operands.begin()+OpNo); 76162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 76262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (RegInfo) { 76362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner for (unsigned i = OpNo, e = Operands.size(); i != e; ++i) { 764d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (Operands[i].isReg()) 765ff2b99afc8cbc6cfa73181072888e0f9f07deb7eJakob Stoklund Olesen RegInfo->addRegOperandToUseList(&Operands[i]); 76662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 76762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 76862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner} 76962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 770c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman/// addMemOperand - Add a MachineMemOperand to the machine instruction. 771c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman/// This function should be used only occasionally. The setMemRefs function 772c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman/// is the primary method for setting up a MachineInstr's MemRefs list. 7738e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohmanvoid MachineInstr::addMemOperand(MachineFunction &MF, 774c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman MachineMemOperand *MO) { 775c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman mmo_iterator OldMemRefs = MemRefs; 776861ea230a7841fe4ccc8a1cd5460354e59aeed3cBenjamin Kramer uint16_t OldNumMemRefs = NumMemRefs; 7778e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman 778861ea230a7841fe4ccc8a1cd5460354e59aeed3cBenjamin Kramer uint16_t NewNum = NumMemRefs + 1; 779c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman mmo_iterator NewMemRefs = MF.allocateMemRefsArray(NewNum); 7808e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman 781861ea230a7841fe4ccc8a1cd5460354e59aeed3cBenjamin Kramer std::copy(OldMemRefs, OldMemRefs + OldNumMemRefs, NewMemRefs); 782c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman NewMemRefs[NewNum - 1] = MO; 783c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman 784c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman MemRefs = NewMemRefs; 785861ea230a7841fe4ccc8a1cd5460354e59aeed3cBenjamin Kramer NumMemRefs = NewNum; 786c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman} 78762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 78885f9cef27e6b2605e67e94afc949f5b5f5b90668Benjamin Kramerbool MachineInstr::hasPropertyInBundle(unsigned Mask, QueryType Type) const { 7897c2a4a30e0e16762c75adacebd05ec9fcbccf16bEvan Cheng const MachineBasicBlock *MBB = getParent(); 790ddfd1377d2e4154d44dc3ad217735adc15af2e3fEvan Cheng MachineBasicBlock::const_instr_iterator MII = *this; ++MII; 7917c2a4a30e0e16762c75adacebd05ec9fcbccf16bEvan Cheng while (MII != MBB->end() && MII->isInsideBundle()) { 79285f9cef27e6b2605e67e94afc949f5b5f5b90668Benjamin Kramer if (MII->getDesc().getFlags() & Mask) { 79343d5d4ca1c93529c43e78cc5aa03c4ee10a6b0d8Evan Cheng if (Type == AnyInBundle) 7945a96b3dad2f634c9081c8b2b6c2575441dc5a2bdEvan Cheng return true; 7955a96b3dad2f634c9081c8b2b6c2575441dc5a2bdEvan Cheng } else { 79643d5d4ca1c93529c43e78cc5aa03c4ee10a6b0d8Evan Cheng if (Type == AllInBundle) 7975a96b3dad2f634c9081c8b2b6c2575441dc5a2bdEvan Cheng return false; 7985a96b3dad2f634c9081c8b2b6c2575441dc5a2bdEvan Cheng } 7997c2a4a30e0e16762c75adacebd05ec9fcbccf16bEvan Cheng ++MII; 8007c2a4a30e0e16762c75adacebd05ec9fcbccf16bEvan Cheng } 8015a96b3dad2f634c9081c8b2b6c2575441dc5a2bdEvan Cheng 80243d5d4ca1c93529c43e78cc5aa03c4ee10a6b0d8Evan Cheng return Type == AllInBundle; 8037c2a4a30e0e16762c75adacebd05ec9fcbccf16bEvan Cheng} 8047c2a4a30e0e16762c75adacebd05ec9fcbccf16bEvan Cheng 805506049f29f4f202a8e45feb916cc0264440a7f6dEvan Chengbool MachineInstr::isIdenticalTo(const MachineInstr *Other, 806506049f29f4f202a8e45feb916cc0264440a7f6dEvan Cheng MICheckType Check) const { 80734cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng // If opcodes or number of operands are not the same then the two 80834cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng // instructions are obviously not identical. 80934cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng if (Other->getOpcode() != getOpcode() || 81034cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng Other->getNumOperands() != getNumOperands()) 81134cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng return false; 81234cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng 813ddfd1377d2e4154d44dc3ad217735adc15af2e3fEvan Cheng if (isBundle()) { 814ddfd1377d2e4154d44dc3ad217735adc15af2e3fEvan Cheng // Both instructions are bundles, compare MIs inside the bundle. 815ddfd1377d2e4154d44dc3ad217735adc15af2e3fEvan Cheng MachineBasicBlock::const_instr_iterator I1 = *this; 816ddfd1377d2e4154d44dc3ad217735adc15af2e3fEvan Cheng MachineBasicBlock::const_instr_iterator E1 = getParent()->instr_end(); 817ddfd1377d2e4154d44dc3ad217735adc15af2e3fEvan Cheng MachineBasicBlock::const_instr_iterator I2 = *Other; 818ddfd1377d2e4154d44dc3ad217735adc15af2e3fEvan Cheng MachineBasicBlock::const_instr_iterator E2= Other->getParent()->instr_end(); 819ddfd1377d2e4154d44dc3ad217735adc15af2e3fEvan Cheng while (++I1 != E1 && I1->isInsideBundle()) { 820ddfd1377d2e4154d44dc3ad217735adc15af2e3fEvan Cheng ++I2; 821ddfd1377d2e4154d44dc3ad217735adc15af2e3fEvan Cheng if (I2 == E2 || !I2->isInsideBundle() || !I1->isIdenticalTo(I2, Check)) 822ddfd1377d2e4154d44dc3ad217735adc15af2e3fEvan Cheng return false; 823ddfd1377d2e4154d44dc3ad217735adc15af2e3fEvan Cheng } 824ddfd1377d2e4154d44dc3ad217735adc15af2e3fEvan Cheng } 825ddfd1377d2e4154d44dc3ad217735adc15af2e3fEvan Cheng 82634cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng // Check operands to make sure they match. 82734cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 82834cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng const MachineOperand &MO = getOperand(i); 82934cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng const MachineOperand &OMO = Other->getOperand(i); 830cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng if (!MO.isReg()) { 831cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng if (!MO.isIdenticalTo(OMO)) 832cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng return false; 833cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng continue; 834cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng } 835cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng 83634cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng // Clients may or may not want to ignore defs when testing for equality. 83734cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng // For example, machine CSE pass only cares about finding common 83834cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng // subexpressions, so it's safe to ignore virtual register defs. 839cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng if (MO.isDef()) { 84034cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng if (Check == IgnoreDefs) 84134cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng continue; 842cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng else if (Check == IgnoreVRegDefs) { 843cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng if (TargetRegisterInfo::isPhysicalRegister(MO.getReg()) || 844cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng TargetRegisterInfo::isPhysicalRegister(OMO.getReg())) 845cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng if (MO.getReg() != OMO.getReg()) 846cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng return false; 847cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng } else { 848cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng if (!MO.isIdenticalTo(OMO)) 849cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng return false; 850cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng if (Check == CheckKillDead && MO.isDead() != OMO.isDead()) 85134cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng return false; 852cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng } 853cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng } else { 854cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng if (!MO.isIdenticalTo(OMO)) 855cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng return false; 856cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng if (Check == CheckKillDead && MO.isKill() != OMO.isKill()) 857cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng return false; 858cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng } 85934cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng } 8609194c6716be13e2b8d2cf8e45273bf6c79f8b32cDevang Patel // If DebugLoc does not match then two dbg.values are not identical. 8619194c6716be13e2b8d2cf8e45273bf6c79f8b32cDevang Patel if (isDebugValue()) 8629194c6716be13e2b8d2cf8e45273bf6c79f8b32cDevang Patel if (!getDebugLoc().isUnknown() && !Other->getDebugLoc().isUnknown() 8639194c6716be13e2b8d2cf8e45273bf6c79f8b32cDevang Patel && getDebugLoc() != Other->getDebugLoc()) 8649194c6716be13e2b8d2cf8e45273bf6c79f8b32cDevang Patel return false; 86534cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng return true; 866506049f29f4f202a8e45feb916cc0264440a7f6dEvan Cheng} 867506049f29f4f202a8e45feb916cc0264440a7f6dEvan Cheng 86848d7c069c76882475c23de153bda9483cd3c9bb4Chris Lattner/// removeFromParent - This method unlinks 'this' from the containing basic 86948d7c069c76882475c23de153bda9483cd3c9bb4Chris Lattner/// block, and returns it, but does not delete it. 87048d7c069c76882475c23de153bda9483cd3c9bb4Chris LattnerMachineInstr *MachineInstr::removeFromParent() { 87148d7c069c76882475c23de153bda9483cd3c9bb4Chris Lattner assert(getParent() && "Not embedded in a basic block!"); 8727c2a4a30e0e16762c75adacebd05ec9fcbccf16bEvan Cheng 8737c2a4a30e0e16762c75adacebd05ec9fcbccf16bEvan Cheng // If it's a bundle then remove the MIs inside the bundle as well. 874ddfd1377d2e4154d44dc3ad217735adc15af2e3fEvan Cheng if (isBundle()) { 8757c2a4a30e0e16762c75adacebd05ec9fcbccf16bEvan Cheng MachineBasicBlock *MBB = getParent(); 876ddfd1377d2e4154d44dc3ad217735adc15af2e3fEvan Cheng MachineBasicBlock::instr_iterator MII = *this; ++MII; 877ddfd1377d2e4154d44dc3ad217735adc15af2e3fEvan Cheng MachineBasicBlock::instr_iterator E = MBB->instr_end(); 878ddfd1377d2e4154d44dc3ad217735adc15af2e3fEvan Cheng while (MII != E && MII->isInsideBundle()) { 8797c2a4a30e0e16762c75adacebd05ec9fcbccf16bEvan Cheng MachineInstr *MI = &*MII; 8807c2a4a30e0e16762c75adacebd05ec9fcbccf16bEvan Cheng ++MII; 8817c2a4a30e0e16762c75adacebd05ec9fcbccf16bEvan Cheng MBB->remove(MI); 8827c2a4a30e0e16762c75adacebd05ec9fcbccf16bEvan Cheng } 8837c2a4a30e0e16762c75adacebd05ec9fcbccf16bEvan Cheng } 88448d7c069c76882475c23de153bda9483cd3c9bb4Chris Lattner getParent()->remove(this); 88548d7c069c76882475c23de153bda9483cd3c9bb4Chris Lattner return this; 88648d7c069c76882475c23de153bda9483cd3c9bb4Chris Lattner} 88748d7c069c76882475c23de153bda9483cd3c9bb4Chris Lattner 88848d7c069c76882475c23de153bda9483cd3c9bb4Chris Lattner 8898e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman/// eraseFromParent - This method unlinks 'this' from the containing basic 8908e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman/// block, and deletes it. 8918e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohmanvoid MachineInstr::eraseFromParent() { 8928e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman assert(getParent() && "Not embedded in a basic block!"); 8937c2a4a30e0e16762c75adacebd05ec9fcbccf16bEvan Cheng // If it's a bundle then remove the MIs inside the bundle as well. 894ddfd1377d2e4154d44dc3ad217735adc15af2e3fEvan Cheng if (isBundle()) { 8957c2a4a30e0e16762c75adacebd05ec9fcbccf16bEvan Cheng MachineBasicBlock *MBB = getParent(); 896ddfd1377d2e4154d44dc3ad217735adc15af2e3fEvan Cheng MachineBasicBlock::instr_iterator MII = *this; ++MII; 897ddfd1377d2e4154d44dc3ad217735adc15af2e3fEvan Cheng MachineBasicBlock::instr_iterator E = MBB->instr_end(); 898ddfd1377d2e4154d44dc3ad217735adc15af2e3fEvan Cheng while (MII != E && MII->isInsideBundle()) { 8997c2a4a30e0e16762c75adacebd05ec9fcbccf16bEvan Cheng MachineInstr *MI = &*MII; 9007c2a4a30e0e16762c75adacebd05ec9fcbccf16bEvan Cheng ++MII; 9017c2a4a30e0e16762c75adacebd05ec9fcbccf16bEvan Cheng MBB->erase(MI); 9027c2a4a30e0e16762c75adacebd05ec9fcbccf16bEvan Cheng } 9037c2a4a30e0e16762c75adacebd05ec9fcbccf16bEvan Cheng } 904d88d27868bf7c2c5914c1b9ccace0ee6d7ee958aAndrew Trick // Erase the individual instruction, which may itself be inside a bundle. 905d88d27868bf7c2c5914c1b9ccace0ee6d7ee958aAndrew Trick getParent()->erase_instr(this); 9068e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman} 9078e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman 9088e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman 90919e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng/// getNumExplicitOperands - Returns the number of non-implicit operands. 91019e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng/// 91119e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Chengunsigned MachineInstr::getNumExplicitOperands() const { 912e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng unsigned NumOperands = MCID->getNumOperands(); 913e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng if (!MCID->isVariadic()) 91419e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng return NumOperands; 91519e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng 9169407cd4ede3e2c090b958778d0fdbdac8b2dbec4Dan Gohman for (unsigned i = NumOperands, e = getNumOperands(); i != e; ++i) { 9179407cd4ede3e2c090b958778d0fdbdac8b2dbec4Dan Gohman const MachineOperand &MO = getOperand(i); 918d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (!MO.isReg() || !MO.isImplicit()) 91919e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng NumOperands++; 92019e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng } 92119e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng return NumOperands; 92219e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng} 92319e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng 92499a7a13f4aa5bf8f272c95f7b09ba997d2b30a35Andrew Trick/// isBundled - Return true if this instruction part of a bundle. This is true 92599a7a13f4aa5bf8f272c95f7b09ba997d2b30a35Andrew Trick/// if either itself or its following instruction is marked "InsideBundle". 92699a7a13f4aa5bf8f272c95f7b09ba997d2b30a35Andrew Trickbool MachineInstr::isBundled() const { 92799a7a13f4aa5bf8f272c95f7b09ba997d2b30a35Andrew Trick if (isInsideBundle()) 92899a7a13f4aa5bf8f272c95f7b09ba997d2b30a35Andrew Trick return true; 92999a7a13f4aa5bf8f272c95f7b09ba997d2b30a35Andrew Trick MachineBasicBlock::const_instr_iterator nextMI = this; 93099a7a13f4aa5bf8f272c95f7b09ba997d2b30a35Andrew Trick ++nextMI; 93199a7a13f4aa5bf8f272c95f7b09ba997d2b30a35Andrew Trick return nextMI != Parent->instr_end() && nextMI->isInsideBundle(); 93299a7a13f4aa5bf8f272c95f7b09ba997d2b30a35Andrew Trick} 93399a7a13f4aa5bf8f272c95f7b09ba997d2b30a35Andrew Trick 934c36b7069b42bece963b7e6adf020353ce990ef76Evan Chengbool MachineInstr::isStackAligningInlineAsm() const { 935c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng if (isInlineAsm()) { 936c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng unsigned ExtraInfo = getOperand(InlineAsm::MIOp_ExtraInfo).getImm(); 937c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng if (ExtraInfo & InlineAsm::Extra_IsAlignStack) 938c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng return true; 939c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng } 940c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng return false; 941c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng} 9428ace2cd034be10c09be51daf08c3dda327f54262Chris Lattner 943576cd11ab8035d4240f7e6ea8d7c6c2e45154f86Chad RosierInlineAsm::AsmDialect MachineInstr::getInlineAsmDialect() const { 944576cd11ab8035d4240f7e6ea8d7c6c2e45154f86Chad Rosier assert(isInlineAsm() && "getInlineAsmDialect() only works for inline asms!"); 945576cd11ab8035d4240f7e6ea8d7c6c2e45154f86Chad Rosier unsigned ExtraInfo = getOperand(InlineAsm::MIOp_ExtraInfo).getImm(); 9462f1d8154795ad82e500fda27d75ec1449e7a0648Chad Rosier return InlineAsm::AsmDialect((ExtraInfo & InlineAsm::Extra_AsmDialect) != 0); 947576cd11ab8035d4240f7e6ea8d7c6c2e45154f86Chad Rosier} 948576cd11ab8035d4240f7e6ea8d7c6c2e45154f86Chad Rosier 9499dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesenint MachineInstr::findInlineAsmFlagIdx(unsigned OpIdx, 9509dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen unsigned *GroupNo) const { 9519dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen assert(isInlineAsm() && "Expected an inline asm instruction"); 9529dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen assert(OpIdx < getNumOperands() && "OpIdx out of range"); 9539dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen 9549dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen // Ignore queries about the initial operands. 9559dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen if (OpIdx < InlineAsm::MIOp_FirstOperand) 9569dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen return -1; 9579dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen 9589dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen unsigned Group = 0; 9599dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen unsigned NumOps; 9609dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen for (unsigned i = InlineAsm::MIOp_FirstOperand, e = getNumOperands(); i < e; 9619dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen i += NumOps) { 9629dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen const MachineOperand &FlagMO = getOperand(i); 9639dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen // If we reach the implicit register operands, stop looking. 9649dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen if (!FlagMO.isImm()) 9659dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen return -1; 9669dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen NumOps = 1 + InlineAsm::getNumOperandRegisters(FlagMO.getImm()); 9679dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen if (i + NumOps > OpIdx) { 9689dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen if (GroupNo) 9699dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen *GroupNo = Group; 9709dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen return i; 9719dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen } 9729dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen ++Group; 9739dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen } 9749dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen return -1; 9759dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen} 9769dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen 977f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund Olesenconst TargetRegisterClass* 978f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund OlesenMachineInstr::getRegClassConstraint(unsigned OpIdx, 979f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund Olesen const TargetInstrInfo *TII, 980f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund Olesen const TargetRegisterInfo *TRI) const { 981397fc4874efe9c17e737d4c5c50bd19dc3bf27f5Jakob Stoklund Olesen assert(getParent() && "Can't have an MBB reference here!"); 982397fc4874efe9c17e737d4c5c50bd19dc3bf27f5Jakob Stoklund Olesen assert(getParent()->getParent() && "Can't have an MF reference here!"); 983397fc4874efe9c17e737d4c5c50bd19dc3bf27f5Jakob Stoklund Olesen const MachineFunction &MF = *getParent()->getParent(); 984397fc4874efe9c17e737d4c5c50bd19dc3bf27f5Jakob Stoklund Olesen 985f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund Olesen // Most opcodes have fixed constraints in their MCInstrDesc. 986f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund Olesen if (!isInlineAsm()) 987397fc4874efe9c17e737d4c5c50bd19dc3bf27f5Jakob Stoklund Olesen return TII->getRegClass(getDesc(), OpIdx, TRI, MF); 988f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund Olesen 989f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund Olesen if (!getOperand(OpIdx).isReg()) 990f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund Olesen return NULL; 991f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund Olesen 992f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund Olesen // For tied uses on inline asm, get the constraint from the def. 993f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund Olesen unsigned DefIdx; 994f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund Olesen if (getOperand(OpIdx).isUse() && isRegTiedToDefOperand(OpIdx, &DefIdx)) 995f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund Olesen OpIdx = DefIdx; 996f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund Olesen 997f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund Olesen // Inline asm stores register class constraints in the flag word. 998f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund Olesen int FlagIdx = findInlineAsmFlagIdx(OpIdx); 999f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund Olesen if (FlagIdx < 0) 1000f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund Olesen return NULL; 1001f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund Olesen 1002f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund Olesen unsigned Flag = getOperand(FlagIdx).getImm(); 1003f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund Olesen unsigned RCID; 1004f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund Olesen if (InlineAsm::hasRegClassConstraint(Flag, RCID)) 1005f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund Olesen return TRI->getRegClass(RCID); 1006f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund Olesen 1007f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund Olesen // Assume that all registers in a memory operand are pointers. 1008f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund Olesen if (InlineAsm::getKind(Flag) == InlineAsm::Kind_Mem) 1009397fc4874efe9c17e737d4c5c50bd19dc3bf27f5Jakob Stoklund Olesen return TRI->getPointerRegClass(MF); 1010f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund Olesen 1011f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund Olesen return NULL; 1012f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund Olesen} 1013f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund Olesen 1014ddfd1377d2e4154d44dc3ad217735adc15af2e3fEvan Cheng/// getBundleSize - Return the number of instructions inside the MI bundle. 1015ddfd1377d2e4154d44dc3ad217735adc15af2e3fEvan Chengunsigned MachineInstr::getBundleSize() const { 1016ddfd1377d2e4154d44dc3ad217735adc15af2e3fEvan Cheng assert(isBundle() && "Expecting a bundle"); 1017ddfd1377d2e4154d44dc3ad217735adc15af2e3fEvan Cheng 1018dc6d846df56f83be4c7045ccc9092f8a8343360bAkira Hatanaka const MachineBasicBlock *MBB = getParent(); 1019dc6d846df56f83be4c7045ccc9092f8a8343360bAkira Hatanaka MachineBasicBlock::const_instr_iterator I = *this, E = MBB->instr_end(); 1020ddfd1377d2e4154d44dc3ad217735adc15af2e3fEvan Cheng unsigned Size = 0; 1021dc6d846df56f83be4c7045ccc9092f8a8343360bAkira Hatanaka while ((++I != E) && I->isInsideBundle()) { 1022ddfd1377d2e4154d44dc3ad217735adc15af2e3fEvan Cheng ++Size; 1023ddfd1377d2e4154d44dc3ad217735adc15af2e3fEvan Cheng } 1024ddfd1377d2e4154d44dc3ad217735adc15af2e3fEvan Cheng assert(Size > 1 && "Malformed bundle"); 1025ddfd1377d2e4154d44dc3ad217735adc15af2e3fEvan Cheng 1026ddfd1377d2e4154d44dc3ad217735adc15af2e3fEvan Cheng return Size; 1027ddfd1377d2e4154d44dc3ad217735adc15af2e3fEvan Cheng} 1028ddfd1377d2e4154d44dc3ad217735adc15af2e3fEvan Cheng 1029faa510726f4b40aa4495e60e4d341c6467e3fb01Evan Cheng/// findRegisterUseOperandIdx() - Returns the MachineOperand that is a use of 1030f9ca50e3dce88b2f9e2f2f0cac2d3ed78afda841Jim Grosbach/// the specific register or -1 if it is not found. It further tightens 103176d7e76c15c258ec4a71fd75a2a32bca3a5e5e27Evan Cheng/// the search criteria to a use that kills the register if isKill is true. 10326130f66eaae89f8878590796977678afa8448926Evan Chengint MachineInstr::findRegisterUseOperandIdx(unsigned Reg, bool isKill, 10336130f66eaae89f8878590796977678afa8448926Evan Cheng const TargetRegisterInfo *TRI) const { 1034576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 1035f277ee4be7edabb759a7f78138b693d72d0c263fEvan Cheng const MachineOperand &MO = getOperand(i); 1036d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (!MO.isReg() || !MO.isUse()) 10376130f66eaae89f8878590796977678afa8448926Evan Cheng continue; 10386130f66eaae89f8878590796977678afa8448926Evan Cheng unsigned MOReg = MO.getReg(); 10396130f66eaae89f8878590796977678afa8448926Evan Cheng if (!MOReg) 10406130f66eaae89f8878590796977678afa8448926Evan Cheng continue; 10416130f66eaae89f8878590796977678afa8448926Evan Cheng if (MOReg == Reg || 10426130f66eaae89f8878590796977678afa8448926Evan Cheng (TRI && 10436130f66eaae89f8878590796977678afa8448926Evan Cheng TargetRegisterInfo::isPhysicalRegister(MOReg) && 10446130f66eaae89f8878590796977678afa8448926Evan Cheng TargetRegisterInfo::isPhysicalRegister(Reg) && 10456130f66eaae89f8878590796977678afa8448926Evan Cheng TRI->isSubRegister(MOReg, Reg))) 104676d7e76c15c258ec4a71fd75a2a32bca3a5e5e27Evan Cheng if (!isKill || MO.isKill()) 104732eb1f1ca4220d2f24916e587ad7e8574d7d82a1Evan Cheng return i; 1048b371f457b0ea4a652a9f526ba4375c80ae542252Evan Cheng } 104932eb1f1ca4220d2f24916e587ad7e8574d7d82a1Evan Cheng return -1; 1050b371f457b0ea4a652a9f526ba4375c80ae542252Evan Cheng} 10517ebc4d63db05ac214d36bc01b4d60adadaf923e5Jakob Stoklund Olesen 105218b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesen/// readsWritesVirtualRegister - Return a pair of bools (reads, writes) 105318b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesen/// indicating if this instruction reads or writes Reg. This also considers 105418b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesen/// partial defines. 105518b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesenstd::pair<bool,bool> 105618b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund OlesenMachineInstr::readsWritesVirtualRegister(unsigned Reg, 105718b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesen SmallVectorImpl<unsigned> *Ops) const { 105818b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesen bool PartDef = false; // Partial redefine. 105918b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesen bool FullDef = false; // Full define. 106018b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesen bool Use = false; 10617ebc4d63db05ac214d36bc01b4d60adadaf923e5Jakob Stoklund Olesen 10627ebc4d63db05ac214d36bc01b4d60adadaf923e5Jakob Stoklund Olesen for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 10637ebc4d63db05ac214d36bc01b4d60adadaf923e5Jakob Stoklund Olesen const MachineOperand &MO = getOperand(i); 10647ebc4d63db05ac214d36bc01b4d60adadaf923e5Jakob Stoklund Olesen if (!MO.isReg() || MO.getReg() != Reg) 10657ebc4d63db05ac214d36bc01b4d60adadaf923e5Jakob Stoklund Olesen continue; 106618b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesen if (Ops) 106718b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesen Ops->push_back(i); 10687ebc4d63db05ac214d36bc01b4d60adadaf923e5Jakob Stoklund Olesen if (MO.isUse()) 106918b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesen Use |= !MO.isUndef(); 1070201f2463a72f88121a3a31e7386029e99d2d75daJakob Stoklund Olesen else if (MO.getSubReg() && !MO.isUndef()) 1071201f2463a72f88121a3a31e7386029e99d2d75daJakob Stoklund Olesen // A partial <def,undef> doesn't count as reading the register. 10727ebc4d63db05ac214d36bc01b4d60adadaf923e5Jakob Stoklund Olesen PartDef = true; 10737ebc4d63db05ac214d36bc01b4d60adadaf923e5Jakob Stoklund Olesen else 10747ebc4d63db05ac214d36bc01b4d60adadaf923e5Jakob Stoklund Olesen FullDef = true; 10757ebc4d63db05ac214d36bc01b4d60adadaf923e5Jakob Stoklund Olesen } 107618b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesen // A partial redefine uses Reg unless there is also a full define. 107718b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesen return std::make_pair(Use || (PartDef && !FullDef), PartDef || FullDef); 10787ebc4d63db05ac214d36bc01b4d60adadaf923e5Jakob Stoklund Olesen} 10797ebc4d63db05ac214d36bc01b4d60adadaf923e5Jakob Stoklund Olesen 10806130f66eaae89f8878590796977678afa8448926Evan Cheng/// findRegisterDefOperandIdx() - Returns the operand index that is a def of 1081703bfe69092e8da79fbef2fc5ca07b805ad9f753Dan Gohman/// the specified register or -1 if it is not found. If isDead is true, defs 1082703bfe69092e8da79fbef2fc5ca07b805ad9f753Dan Gohman/// that are not dead are skipped. If TargetRegisterInfo is non-null, then it 1083703bfe69092e8da79fbef2fc5ca07b805ad9f753Dan Gohman/// also checks if there is a def of a super-register. 10841015ba7018c87f48cc7bb45a564eb4a27241e76aEvan Chengint 10851015ba7018c87f48cc7bb45a564eb4a27241e76aEvan ChengMachineInstr::findRegisterDefOperandIdx(unsigned Reg, bool isDead, bool Overlap, 10861015ba7018c87f48cc7bb45a564eb4a27241e76aEvan Cheng const TargetRegisterInfo *TRI) const { 10871015ba7018c87f48cc7bb45a564eb4a27241e76aEvan Cheng bool isPhys = TargetRegisterInfo::isPhysicalRegister(Reg); 1088b371f457b0ea4a652a9f526ba4375c80ae542252Evan Cheng for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 10896130f66eaae89f8878590796977678afa8448926Evan Cheng const MachineOperand &MO = getOperand(i); 10901cf8b0f2a5435d8444b6cc7d4a27eef424398273Jakob Stoklund Olesen // Accept regmask operands when Overlap is set. 10911cf8b0f2a5435d8444b6cc7d4a27eef424398273Jakob Stoklund Olesen // Ignore them when looking for a specific def operand (Overlap == false). 10921cf8b0f2a5435d8444b6cc7d4a27eef424398273Jakob Stoklund Olesen if (isPhys && Overlap && MO.isRegMask() && MO.clobbersPhysReg(Reg)) 10931cf8b0f2a5435d8444b6cc7d4a27eef424398273Jakob Stoklund Olesen return i; 1094d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (!MO.isReg() || !MO.isDef()) 10956130f66eaae89f8878590796977678afa8448926Evan Cheng continue; 10966130f66eaae89f8878590796977678afa8448926Evan Cheng unsigned MOReg = MO.getReg(); 10971015ba7018c87f48cc7bb45a564eb4a27241e76aEvan Cheng bool Found = (MOReg == Reg); 10981015ba7018c87f48cc7bb45a564eb4a27241e76aEvan Cheng if (!Found && TRI && isPhys && 10991015ba7018c87f48cc7bb45a564eb4a27241e76aEvan Cheng TargetRegisterInfo::isPhysicalRegister(MOReg)) { 11001015ba7018c87f48cc7bb45a564eb4a27241e76aEvan Cheng if (Overlap) 11011015ba7018c87f48cc7bb45a564eb4a27241e76aEvan Cheng Found = TRI->regsOverlap(MOReg, Reg); 11021015ba7018c87f48cc7bb45a564eb4a27241e76aEvan Cheng else 11031015ba7018c87f48cc7bb45a564eb4a27241e76aEvan Cheng Found = TRI->isSubRegister(MOReg, Reg); 11041015ba7018c87f48cc7bb45a564eb4a27241e76aEvan Cheng } 11051015ba7018c87f48cc7bb45a564eb4a27241e76aEvan Cheng if (Found && (!isDead || MO.isDead())) 11061015ba7018c87f48cc7bb45a564eb4a27241e76aEvan Cheng return i; 1107576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng } 11086130f66eaae89f8878590796977678afa8448926Evan Cheng return -1; 1109576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng} 111019e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng 1111f277ee4be7edabb759a7f78138b693d72d0c263fEvan Cheng/// findFirstPredOperandIdx() - Find the index of the first operand in the 1112f277ee4be7edabb759a7f78138b693d72d0c263fEvan Cheng/// operand list that is used to represent the predicate. It returns -1 if 1113f277ee4be7edabb759a7f78138b693d72d0c263fEvan Cheng/// none is found. 1114f277ee4be7edabb759a7f78138b693d72d0c263fEvan Chengint MachineInstr::findFirstPredOperandIdx() const { 1115f8e1e3e729473b8b2b7ee6134b6417976af84d05Jim Grosbach // Don't call MCID.findFirstPredOperandIdx() because this variant 1116f8e1e3e729473b8b2b7ee6134b6417976af84d05Jim Grosbach // is sometimes called on an instruction that's not yet complete, and 1117f8e1e3e729473b8b2b7ee6134b6417976af84d05Jim Grosbach // so the number of operands is less than the MCID indicates. In 1118f8e1e3e729473b8b2b7ee6134b6417976af84d05Jim Grosbach // particular, the PTX target does this. 1119e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng const MCInstrDesc &MCID = getDesc(); 1120e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng if (MCID.isPredicable()) { 112119e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng for (unsigned i = 0, e = getNumOperands(); i != e; ++i) 1122e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng if (MCID.OpInfo[i].isPredicate()) 1123f277ee4be7edabb759a7f78138b693d72d0c263fEvan Cheng return i; 112419e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng } 112519e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng 1126f277ee4be7edabb759a7f78138b693d72d0c263fEvan Cheng return -1; 112719e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng} 1128ee61d67c2f1105e23b2ea5110389f3b7b713b504Jim Grosbach 11299c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen// MachineOperand::TiedTo is 4 bits wide. 11309c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesenconst unsigned TiedMax = 15; 11319c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen 11329c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen/// tieOperands - Mark operands at DefIdx and UseIdx as tied to each other. 11339c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen/// 11349c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen/// Use and def operands can be tied together, indicated by a non-zero TiedTo 11359c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen/// field. TiedTo can have these values: 11369c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen/// 11379c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen/// 0: Operand is not tied to anything. 11389c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen/// 1 to TiedMax-1: Tied to getOperand(TiedTo-1). 11399c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen/// TiedMax: Tied to an operand >= TiedMax-1. 11409c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen/// 11419c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen/// The tied def must be one of the first TiedMax operands on a normal 11429c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen/// instruction. INLINEASM instructions allow more tied defs. 11439c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen/// 114494083149fd6891c8a72472cf1814fa6600a75979Jakob Stoklund Olesenvoid MachineInstr::tieOperands(unsigned DefIdx, unsigned UseIdx) { 114594083149fd6891c8a72472cf1814fa6600a75979Jakob Stoklund Olesen MachineOperand &DefMO = getOperand(DefIdx); 114694083149fd6891c8a72472cf1814fa6600a75979Jakob Stoklund Olesen MachineOperand &UseMO = getOperand(UseIdx); 114794083149fd6891c8a72472cf1814fa6600a75979Jakob Stoklund Olesen assert(DefMO.isDef() && "DefIdx must be a def operand"); 114894083149fd6891c8a72472cf1814fa6600a75979Jakob Stoklund Olesen assert(UseMO.isUse() && "UseIdx must be a use operand"); 114994083149fd6891c8a72472cf1814fa6600a75979Jakob Stoklund Olesen assert(!DefMO.isTied() && "Def is already tied to another use"); 115094083149fd6891c8a72472cf1814fa6600a75979Jakob Stoklund Olesen assert(!UseMO.isTied() && "Use is already tied to another def"); 115194083149fd6891c8a72472cf1814fa6600a75979Jakob Stoklund Olesen 11529c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen if (DefIdx < TiedMax) 11539c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen UseMO.TiedTo = DefIdx + 1; 11549c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen else { 11559c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen // Inline asm can use the group descriptors to find tied operands, but on 11569c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen // normal instruction, the tied def must be within the first TiedMax 11579c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen // operands. 11589c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen assert(isInlineAsm() && "DefIdx out of range"); 11599c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen UseMO.TiedTo = TiedMax; 11609c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen } 11619c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen 11629c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen // UseIdx can be out of range, we'll search for it in findTiedOperandIdx(). 11639c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen DefMO.TiedTo = std::min(UseIdx + 1, TiedMax); 116494083149fd6891c8a72472cf1814fa6600a75979Jakob Stoklund Olesen} 116594083149fd6891c8a72472cf1814fa6600a75979Jakob Stoklund Olesen 1166699ac049517285d978ed607b2735976c5ae97ac0Jakob Stoklund Olesen/// Given the index of a tied register operand, find the operand it is tied to. 1167699ac049517285d978ed607b2735976c5ae97ac0Jakob Stoklund Olesen/// Defs are tied to uses and vice versa. Returns the index of the tied operand 1168699ac049517285d978ed607b2735976c5ae97ac0Jakob Stoklund Olesen/// which must exist. 1169699ac049517285d978ed607b2735976c5ae97ac0Jakob Stoklund Olesenunsigned MachineInstr::findTiedOperandIdx(unsigned OpIdx) const { 11709c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen const MachineOperand &MO = getOperand(OpIdx); 11719c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen assert(MO.isTied() && "Operand isn't tied"); 11729c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen 11739c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen // Normally TiedTo is in range. 11749c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen if (MO.TiedTo < TiedMax) 11759c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen return MO.TiedTo - 1; 11769c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen 11779c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen // Uses on normal instructions can be out of range. 11789c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen if (!isInlineAsm()) { 11799c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen // Normal tied defs must be in the 0..TiedMax-1 range. 11809c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen if (MO.isUse()) 11819c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen return TiedMax - 1; 11829c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen // MO is a def. Search for the tied use. 11839c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen for (unsigned i = TiedMax - 1, e = getNumOperands(); i != e; ++i) { 11849c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen const MachineOperand &UseMO = getOperand(i); 11859c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen if (UseMO.isReg() && UseMO.isUse() && UseMO.TiedTo == OpIdx + 1) 11869c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen return i; 1187699ac049517285d978ed607b2735976c5ae97ac0Jakob Stoklund Olesen } 11889c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen llvm_unreachable("Can't find tied use"); 1189699ac049517285d978ed607b2735976c5ae97ac0Jakob Stoklund Olesen } 1190699ac049517285d978ed607b2735976c5ae97ac0Jakob Stoklund Olesen 11919c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen // Now deal with inline asm by parsing the operand group descriptor flags. 11929c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen // Find the beginning of each operand group. 11939c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen SmallVector<unsigned, 8> GroupIdx; 11949c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen unsigned OpIdxGroup = ~0u; 11959c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen unsigned NumOps; 11969c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen for (unsigned i = InlineAsm::MIOp_FirstOperand, e = getNumOperands(); i < e; 11979c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen i += NumOps) { 11989c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen const MachineOperand &FlagMO = getOperand(i); 11999c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen assert(FlagMO.isImm() && "Invalid tied operand on inline asm"); 12009c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen unsigned CurGroup = GroupIdx.size(); 12019c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen GroupIdx.push_back(i); 12029c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen NumOps = 1 + InlineAsm::getNumOperandRegisters(FlagMO.getImm()); 12039c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen // OpIdx belongs to this operand group. 12049c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen if (OpIdx > i && OpIdx < i + NumOps) 12059c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen OpIdxGroup = CurGroup; 12069c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen unsigned TiedGroup; 12079c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen if (!InlineAsm::isUseOperandTiedToDef(FlagMO.getImm(), TiedGroup)) 12089c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen continue; 12099c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen // Operands in this group are tied to operands in TiedGroup which must be 12109c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen // earlier. Find the number of operands between the two groups. 12119c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen unsigned Delta = i - GroupIdx[TiedGroup]; 12129c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen 12139c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen // OpIdx is a use tied to TiedGroup. 12149c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen if (OpIdxGroup == CurGroup) 12159c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen return OpIdx - Delta; 12169c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen 12179c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen // OpIdx is a def tied to this use group. 12189c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen if (OpIdxGroup == TiedGroup) 12199c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen return OpIdx + Delta; 12209c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen } 12219c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen llvm_unreachable("Invalid tied operand on inline asm"); 1222699ac049517285d978ed607b2735976c5ae97ac0Jakob Stoklund Olesen} 1223699ac049517285d978ed607b2735976c5ae97ac0Jakob Stoklund Olesen 1224e6cd757e6800b9b94a6459ec148c0624c4f2e3c1Dan Gohman/// clearKillInfo - Clears kill flags on all operands. 1225e6cd757e6800b9b94a6459ec148c0624c4f2e3c1Dan Gohman/// 1226e6cd757e6800b9b94a6459ec148c0624c4f2e3c1Dan Gohmanvoid MachineInstr::clearKillInfo() { 1227e6cd757e6800b9b94a6459ec148c0624c4f2e3c1Dan Gohman for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 1228e6cd757e6800b9b94a6459ec148c0624c4f2e3c1Dan Gohman MachineOperand &MO = getOperand(i); 1229e6cd757e6800b9b94a6459ec148c0624c4f2e3c1Dan Gohman if (MO.isReg() && MO.isUse()) 1230e6cd757e6800b9b94a6459ec148c0624c4f2e3c1Dan Gohman MO.setIsKill(false); 1231e6cd757e6800b9b94a6459ec148c0624c4f2e3c1Dan Gohman } 1232e6cd757e6800b9b94a6459ec148c0624c4f2e3c1Dan Gohman} 1233e6cd757e6800b9b94a6459ec148c0624c4f2e3c1Dan Gohman 1234576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng/// copyKillDeadInfo - Copies kill / dead operand properties from MI. 1235576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng/// 1236576d123e130a8291669dd2384a3735cc4933fd00Evan Chengvoid MachineInstr::copyKillDeadInfo(const MachineInstr *MI) { 1237576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng for (unsigned i = 0, e = MI->getNumOperands(); i != e; ++i) { 1238576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng const MachineOperand &MO = MI->getOperand(i); 1239d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (!MO.isReg() || (!MO.isKill() && !MO.isDead())) 1240576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng continue; 1241576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng for (unsigned j = 0, ee = getNumOperands(); j != ee; ++j) { 1242576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng MachineOperand &MOp = getOperand(j); 1243576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng if (!MOp.isIdenticalTo(MO)) 1244576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng continue; 1245576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng if (MO.isKill()) 1246576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng MOp.setIsKill(); 1247576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng else 1248576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng MOp.setIsDead(); 1249576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng break; 1250576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng } 1251576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng } 1252576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng} 1253576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng 125419e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng/// copyPredicates - Copies predicate operand(s) from MI. 125519e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Chengvoid MachineInstr::copyPredicates(const MachineInstr *MI) { 1256ddfd1377d2e4154d44dc3ad217735adc15af2e3fEvan Cheng assert(!isBundle() && "MachineInstr::copyPredicates() can't handle bundles"); 12575a96b3dad2f634c9081c8b2b6c2575441dc5a2bdEvan Cheng 1258e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng const MCInstrDesc &MCID = MI->getDesc(); 1259e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng if (!MCID.isPredicable()) 1260b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng return; 1261b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng for (unsigned i = 0, e = MI->getNumOperands(); i != e; ++i) { 1262e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng if (MCID.OpInfo[i].isPredicate()) { 1263b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng // Predicated operands must be last operands. 1264b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng addOperand(MI->getOperand(i)); 126519e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng } 126619e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng } 126719e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng} 126819e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng 12699edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesenvoid MachineInstr::substituteRegister(unsigned FromReg, 12709edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen unsigned ToReg, 12719edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen unsigned SubIdx, 12729edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen const TargetRegisterInfo &RegInfo) { 12739edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen if (TargetRegisterInfo::isPhysicalRegister(ToReg)) { 12749edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen if (SubIdx) 12759edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen ToReg = RegInfo.getSubReg(ToReg, SubIdx); 12769edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 12779edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen MachineOperand &MO = getOperand(i); 12789edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen if (!MO.isReg() || MO.getReg() != FromReg) 12799edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen continue; 12809edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen MO.substPhysReg(ToReg, RegInfo); 12819edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen } 12829edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen } else { 12839edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 12849edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen MachineOperand &MO = getOperand(i); 12859edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen if (!MO.isReg() || MO.getReg() != FromReg) 12869edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen continue; 12879edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen MO.substVirtReg(ToReg, SubIdx, RegInfo); 12889edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen } 12899edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen } 12909edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen} 12919edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen 12929f1c8317a4676945b4961ddb9827ef2412551620Evan Cheng/// isSafeToMove - Return true if it is safe to move this instruction. If 12939f1c8317a4676945b4961ddb9827ef2412551620Evan Cheng/// SawStore is set to true, it means that there is a store (or call) between 12949f1c8317a4676945b4961ddb9827ef2412551620Evan Cheng/// the instruction's location and its intended destination. 1295b3b930a011554fc7566dd4311af3862b01e5fd8fDan Gohmanbool MachineInstr::isSafeToMove(const TargetInstrInfo *TII, 1296ac1abde05b7e6956c01deb6557539bee8fea30f4Evan Cheng AliasAnalysis *AA, 1297ac1abde05b7e6956c01deb6557539bee8fea30f4Evan Cheng bool &SawStore) const { 1298b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng // Ignore stuff that we obviously can't move. 12990d7585839540abb9ab661a741dc3e0c2c860bcebJakob Stoklund Olesen // 13000d7585839540abb9ab661a741dc3e0c2c860bcebJakob Stoklund Olesen // Treat volatile loads as stores. This is not strictly necessary for 13014f1a56ce3c08763c89e9cf50e9503a87247ac4e9Jakob Stoklund Olesen // volatiles, but it is required for atomic loads. It is not allowed to move 13020d7585839540abb9ab661a741dc3e0c2c860bcebJakob Stoklund Olesen // a load across an atomic load with Ordering > Monotonic. 13030d7585839540abb9ab661a741dc3e0c2c860bcebJakob Stoklund Olesen if (mayStore() || isCall() || 1304f036f7a1e79910bf5b5b6f37d2e512b4f01155a0Jakob Stoklund Olesen (mayLoad() && hasOrderedMemoryRef())) { 1305b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng SawStore = true; 1306b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng return false; 1307b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng } 130830a343aeedf777f9b8b6be9823da750afbf765b1Evan Cheng 130930a343aeedf777f9b8b6be9823da750afbf765b1Evan Cheng if (isLabel() || isDebugValue() || 13105a96b3dad2f634c9081c8b2b6c2575441dc5a2bdEvan Cheng isTerminator() || hasUnmodeledSideEffects()) 1311b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng return false; 1312b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng 1313b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng // See if this instruction does a load. If so, we have to guarantee that the 1314b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng // loaded value doesn't change between the load and the its intended 1315b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng // destination. The check for isInvariantLoad gives the targe the chance to 1316b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng // classify the load as always returning a constant, e.g. a constant pool 1317b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng // load. 13185a96b3dad2f634c9081c8b2b6c2575441dc5a2bdEvan Cheng if (mayLoad() && !isInvariantLoad(AA)) 1319b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng // Otherwise, this is a real load. If there is a store between the load and 13200d7585839540abb9ab661a741dc3e0c2c860bcebJakob Stoklund Olesen // end of block, we can't move it. 13210d7585839540abb9ab661a741dc3e0c2c860bcebJakob Stoklund Olesen return !SawStore; 13223e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman 1323b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng return true; 1324b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng} 1325b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng 1326df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng/// isSafeToReMat - Return true if it's safe to rematerialize the specified 1327df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng/// instruction which defined the specified register instead of copying it. 1328b3b930a011554fc7566dd4311af3862b01e5fd8fDan Gohmanbool MachineInstr::isSafeToReMat(const TargetInstrInfo *TII, 1329ac1abde05b7e6956c01deb6557539bee8fea30f4Evan Cheng AliasAnalysis *AA, 1330ac1abde05b7e6956c01deb6557539bee8fea30f4Evan Cheng unsigned DstReg) const { 1331df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng bool SawStore = false; 1332a70dca156fa76d452f54829b5c5f962ddfd94ef2Dan Gohman if (!TII->isTriviallyReMaterializable(this, AA) || 1333ac1abde05b7e6956c01deb6557539bee8fea30f4Evan Cheng !isSafeToMove(TII, AA, SawStore)) 1334df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng return false; 1335df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 1336cbad42cfd1cc93a41ff26ea2e8895bfbc09f54f2Dan Gohman const MachineOperand &MO = getOperand(i); 1337d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (!MO.isReg()) 1338df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng continue; 1339df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng // FIXME: For now, do not remat any instruction with register operands. 1340df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng // Later on, we can loosen the restriction is the register operands have 1341df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng // not been modified between the def and use. Note, this is different from 13428763c1c54413c9cd0b56e2860edb5856151a69fcEvan Cheng // MachineSink because the code is no longer in two-address form (at least 1343df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng // partially). 1344df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng if (MO.isUse()) 1345df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng return false; 1346df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng else if (!MO.isDead() && MO.getReg() != DstReg) 1347df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng return false; 1348df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng } 1349df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng return true; 1350df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng} 1351df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng 1352f036f7a1e79910bf5b5b6f37d2e512b4f01155a0Jakob Stoklund Olesen/// hasOrderedMemoryRef - Return true if this instruction may have an ordered 1353f036f7a1e79910bf5b5b6f37d2e512b4f01155a0Jakob Stoklund Olesen/// or volatile memory reference, or if the information describing the memory 1354f036f7a1e79910bf5b5b6f37d2e512b4f01155a0Jakob Stoklund Olesen/// reference is not available. Return false if it is known to have no ordered 1355f036f7a1e79910bf5b5b6f37d2e512b4f01155a0Jakob Stoklund Olesen/// memory references. 1356f036f7a1e79910bf5b5b6f37d2e512b4f01155a0Jakob Stoklund Olesenbool MachineInstr::hasOrderedMemoryRef() const { 13573e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman // An instruction known never to access memory won't have a volatile access. 13585a96b3dad2f634c9081c8b2b6c2575441dc5a2bdEvan Cheng if (!mayStore() && 13595a96b3dad2f634c9081c8b2b6c2575441dc5a2bdEvan Cheng !mayLoad() && 13605a96b3dad2f634c9081c8b2b6c2575441dc5a2bdEvan Cheng !isCall() && 1361c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng !hasUnmodeledSideEffects()) 13623e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman return false; 13633e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman 13643e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman // Otherwise, if the instruction has no memory reference information, 13653e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman // conservatively assume it wasn't preserved. 13663e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman if (memoperands_empty()) 13673e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman return true; 1368ee61d67c2f1105e23b2ea5110389f3b7b713b504Jim Grosbach 1369f036f7a1e79910bf5b5b6f37d2e512b4f01155a0Jakob Stoklund Olesen // Check the memory reference information for ordered references. 1370c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman for (mmo_iterator I = memoperands_begin(), E = memoperands_end(); I != E; ++I) 1371f036f7a1e79910bf5b5b6f37d2e512b4f01155a0Jakob Stoklund Olesen if (!(*I)->isUnordered()) 13723e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman return true; 13733e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman 13743e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman return false; 13753e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman} 13763e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman 1377e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman/// isInvariantLoad - Return true if this instruction is loading from a 1378e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman/// location whose value is invariant across the function. For example, 1379f451cb870efcf9e0302d25ed05f4cac6bb494e42Dan Gohman/// loading a value from the constant pool or from the argument area 1380e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman/// of a function if it does not change. This should only return true of 1381e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman/// *all* loads the instruction does are invariant (if it does multiple loads). 1382e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohmanbool MachineInstr::isInvariantLoad(AliasAnalysis *AA) const { 1383e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman // If the instruction doesn't load at all, it isn't an invariant load. 13845a96b3dad2f634c9081c8b2b6c2575441dc5a2bdEvan Cheng if (!mayLoad()) 1385e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman return false; 1386e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman 1387e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman // If the instruction has lost its memoperands, conservatively assume that 1388e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman // it may not be an invariant load. 1389e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman if (memoperands_empty()) 1390e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman return false; 1391e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman 1392e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman const MachineFrameInfo *MFI = getParent()->getParent()->getFrameInfo(); 1393e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman 1394e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman for (mmo_iterator I = memoperands_begin(), 1395e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman E = memoperands_end(); I != E; ++I) { 1396e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman if ((*I)->isVolatile()) return false; 1397e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman if ((*I)->isStore()) return false; 1398d752e0f7e64585839cb3a458ef52456eaebbea3cPete Cooper if ((*I)->isInvariant()) return true; 1399e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman 1400e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman if (const Value *V = (*I)->getValue()) { 1401e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman // A load from a constant PseudoSourceValue is invariant. 1402e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman if (const PseudoSourceValue *PSV = dyn_cast<PseudoSourceValue>(V)) 1403e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman if (PSV->isConstant(MFI)) 1404e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman continue; 1405e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman // If we have an AliasAnalysis, ask it whether the memory is constant. 1406f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman if (AA && AA->pointsToConstantMemory( 1407f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman AliasAnalysis::Location(V, (*I)->getSize(), 1408f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman (*I)->getTBAAInfo()))) 1409e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman continue; 1410e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman } 1411e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman 1412e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman // Otherwise assume conservatively. 1413e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman return false; 1414e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman } 1415e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman 1416e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman // Everything checks out. 1417e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman return true; 1418e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman} 1419e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman 1420229694f0ee630ceabe96a8bd48952f6740f928b2Evan Cheng/// isConstantValuePHI - If the specified instruction is a PHI that always 1421229694f0ee630ceabe96a8bd48952f6740f928b2Evan Cheng/// merges together the same virtual register, return the register, otherwise 1422229694f0ee630ceabe96a8bd48952f6740f928b2Evan Cheng/// return 0. 1423229694f0ee630ceabe96a8bd48952f6740f928b2Evan Chengunsigned MachineInstr::isConstantValuePHI() const { 1424518bb53485df640d7b7e3f6b0544099020c42aa7Chris Lattner if (!isPHI()) 1425229694f0ee630ceabe96a8bd48952f6740f928b2Evan Cheng return 0; 1426d8f079c25e8bcaf4d10bfa9c3f6a38cd5ac84329Evan Cheng assert(getNumOperands() >= 3 && 1427d8f079c25e8bcaf4d10bfa9c3f6a38cd5ac84329Evan Cheng "It's illegal to have a PHI without source operands"); 1428229694f0ee630ceabe96a8bd48952f6740f928b2Evan Cheng 1429229694f0ee630ceabe96a8bd48952f6740f928b2Evan Cheng unsigned Reg = getOperand(1).getReg(); 1430229694f0ee630ceabe96a8bd48952f6740f928b2Evan Cheng for (unsigned i = 3, e = getNumOperands(); i < e; i += 2) 1431229694f0ee630ceabe96a8bd48952f6740f928b2Evan Cheng if (getOperand(i).getReg() != Reg) 1432229694f0ee630ceabe96a8bd48952f6740f928b2Evan Cheng return 0; 1433229694f0ee630ceabe96a8bd48952f6740f928b2Evan Cheng return Reg; 1434229694f0ee630ceabe96a8bd48952f6740f928b2Evan Cheng} 1435229694f0ee630ceabe96a8bd48952f6740f928b2Evan Cheng 1436c36b7069b42bece963b7e6adf020353ce990ef76Evan Chengbool MachineInstr::hasUnmodeledSideEffects() const { 14375a96b3dad2f634c9081c8b2b6c2575441dc5a2bdEvan Cheng if (hasProperty(MCID::UnmodeledSideEffects)) 1438c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng return true; 1439c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng if (isInlineAsm()) { 1440c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng unsigned ExtraInfo = getOperand(InlineAsm::MIOp_ExtraInfo).getImm(); 1441c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng if (ExtraInfo & InlineAsm::Extra_HasSideEffects) 1442c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng return true; 1443c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng } 1444c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng 1445c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng return false; 1446c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng} 1447c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng 1448a57fabe815ccf016eead526eb3ef475f116ab155Evan Cheng/// allDefsAreDead - Return true if all the defs of this instruction are dead. 1449a57fabe815ccf016eead526eb3ef475f116ab155Evan Cheng/// 1450a57fabe815ccf016eead526eb3ef475f116ab155Evan Chengbool MachineInstr::allDefsAreDead() const { 1451a57fabe815ccf016eead526eb3ef475f116ab155Evan Cheng for (unsigned i = 0, e = getNumOperands(); i < e; ++i) { 1452a57fabe815ccf016eead526eb3ef475f116ab155Evan Cheng const MachineOperand &MO = getOperand(i); 1453a57fabe815ccf016eead526eb3ef475f116ab155Evan Cheng if (!MO.isReg() || MO.isUse()) 1454a57fabe815ccf016eead526eb3ef475f116ab155Evan Cheng continue; 1455a57fabe815ccf016eead526eb3ef475f116ab155Evan Cheng if (!MO.isDead()) 1456a57fabe815ccf016eead526eb3ef475f116ab155Evan Cheng return false; 1457a57fabe815ccf016eead526eb3ef475f116ab155Evan Cheng } 1458a57fabe815ccf016eead526eb3ef475f116ab155Evan Cheng return true; 1459a57fabe815ccf016eead526eb3ef475f116ab155Evan Cheng} 1460a57fabe815ccf016eead526eb3ef475f116ab155Evan Cheng 1461c8f46c45a0bdefdb91593cabc87547cc45f9d89dEvan Cheng/// copyImplicitOps - Copy implicit register operands from specified 1462c8f46c45a0bdefdb91593cabc87547cc45f9d89dEvan Cheng/// instruction to this instruction. 1463c8f46c45a0bdefdb91593cabc87547cc45f9d89dEvan Chengvoid MachineInstr::copyImplicitOps(const MachineInstr *MI) { 1464c8f46c45a0bdefdb91593cabc87547cc45f9d89dEvan Cheng for (unsigned i = MI->getDesc().getNumOperands(), e = MI->getNumOperands(); 1465c8f46c45a0bdefdb91593cabc87547cc45f9d89dEvan Cheng i != e; ++i) { 1466c8f46c45a0bdefdb91593cabc87547cc45f9d89dEvan Cheng const MachineOperand &MO = MI->getOperand(i); 1467c8f46c45a0bdefdb91593cabc87547cc45f9d89dEvan Cheng if (MO.isReg() && MO.isImplicit()) 1468c8f46c45a0bdefdb91593cabc87547cc45f9d89dEvan Cheng addOperand(MO); 1469c8f46c45a0bdefdb91593cabc87547cc45f9d89dEvan Cheng } 1470c8f46c45a0bdefdb91593cabc87547cc45f9d89dEvan Cheng} 1471c8f46c45a0bdefdb91593cabc87547cc45f9d89dEvan Cheng 147221326fc2ad47ee7e73a8c0b03a4a0cc0b0a0c4e8Brian Gaekevoid MachineInstr::dump() const { 1473b720be6a50f4e1b3280d2b029ee38dda14577525Manman Ren#if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP) 14743b325334102144ec39910563eabebde434504564David Greene dbgs() << " " << *this; 147577e300e8f0b8db8eec448cae9c87d7c5bfad9757Manman Ren#endif 14765ca6bd14a00ba5310ce1a632d3a0cc8f8af31433Mon P Wang} 14775ca6bd14a00ba5310ce1a632d3a0cc8f8af31433Mon P Wang 1478ee61d67c2f1105e23b2ea5110389f3b7b713b504Jim Grosbachstatic void printDebugLoc(DebugLoc DL, const MachineFunction *MF, 1479da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel raw_ostream &CommentOS) { 1480da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel const LLVMContext &Ctx = MF->getFunction()->getContext(); 1481da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel if (!DL.isUnknown()) { // Print source line info. 1482da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel DIScope Scope(DL.getScope(Ctx)); 1483da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel // Omit the directory, because it's likely to be long and uninteresting. 1484da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel if (Scope.Verify()) 1485da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel CommentOS << Scope.getFilename(); 1486da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel else 1487da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel CommentOS << "<unknown>"; 1488da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel CommentOS << ':' << DL.getLine(); 1489da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel if (DL.getCol() != 0) 1490da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel CommentOS << ':' << DL.getCol(); 1491da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel DebugLoc InlinedAtDL = DebugLoc::getFromDILocation(DL.getInlinedAt(Ctx)); 1492da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel if (!InlinedAtDL.isUnknown()) { 1493da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel CommentOS << " @[ "; 1494da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel printDebugLoc(InlinedAtDL, MF, CommentOS); 1495da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel CommentOS << " ]"; 1496da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel } 1497da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel } 1498da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel} 1499da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel 15005ca6bd14a00ba5310ce1a632d3a0cc8f8af31433Mon P Wangvoid MachineInstr::print(raw_ostream &OS, const TargetMachine *TM) const { 150180f6c5898113806130975fd56d24929b06bf54f8Dan Gohman // We can be a bit tidier if we know the TargetMachine and/or MachineFunction. 150280f6c5898113806130975fd56d24929b06bf54f8Dan Gohman const MachineFunction *MF = 0; 1503a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen const MachineRegisterInfo *MRI = 0; 150480f6c5898113806130975fd56d24929b06bf54f8Dan Gohman if (const MachineBasicBlock *MBB = getParent()) { 150580f6c5898113806130975fd56d24929b06bf54f8Dan Gohman MF = MBB->getParent(); 150680f6c5898113806130975fd56d24929b06bf54f8Dan Gohman if (!TM && MF) 150780f6c5898113806130975fd56d24929b06bf54f8Dan Gohman TM = &MF->getTarget(); 1508a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen if (MF) 1509a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen MRI = &MF->getRegInfo(); 151080f6c5898113806130975fd56d24929b06bf54f8Dan Gohman } 15110ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman 1512a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen // Save a list of virtual registers. 1513a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen SmallVector<unsigned, 8> VirtRegs; 1514a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen 15150ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman // Print explicitly defined operands on the left of an assignment syntax. 151680f6c5898113806130975fd56d24929b06bf54f8Dan Gohman unsigned StartOp = 0, e = getNumOperands(); 15170ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman for (; StartOp < e && getOperand(StartOp).isReg() && 15180ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman getOperand(StartOp).isDef() && 15190ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman !getOperand(StartOp).isImplicit(); 15200ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman ++StartOp) { 15210ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman if (StartOp != 0) OS << ", "; 15220ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman getOperand(StartOp).print(OS, TM); 1523a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen unsigned Reg = getOperand(StartOp).getReg(); 1524c9df025e33ac435adb3b3318d237c36ca7cec659Jakob Stoklund Olesen if (TargetRegisterInfo::isVirtualRegister(Reg)) 1525a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen VirtRegs.push_back(Reg); 15266a592271fb2946a0704b06fd66199987cdd40b3cChris Lattner } 1527b140762a45d21aaed054f15adaff0fc2274d939dTanya Lattner 15280ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman if (StartOp != 0) 15290ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman OS << " = "; 15300ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman 15310ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman // Print the opcode name. 1532c667ba69ac342563c0886e20509e68705d78a0a5Benjamin Kramer if (TM && TM->getInstrInfo()) 1533c667ba69ac342563c0886e20509e68705d78a0a5Benjamin Kramer OS << TM->getInstrInfo()->getName(getOpcode()); 1534c667ba69ac342563c0886e20509e68705d78a0a5Benjamin Kramer else 1535c667ba69ac342563c0886e20509e68705d78a0a5Benjamin Kramer OS << "UNKNOWN"; 1536edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 15370ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman // Print the rest of the operands. 153880f6c5898113806130975fd56d24929b06bf54f8Dan Gohman bool OmittedAnyCallClobbers = false; 153980f6c5898113806130975fd56d24929b06bf54f8Dan Gohman bool FirstOp = true; 15407a2ecd3f99ae4dede7e8c1984c2a08984be69363Jakob Stoklund Olesen unsigned AsmDescOp = ~0u; 15417a2ecd3f99ae4dede7e8c1984c2a08984be69363Jakob Stoklund Olesen unsigned AsmOpCount = 0; 1542c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng 15433627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen if (isInlineAsm() && e >= InlineAsm::MIOp_FirstOperand) { 1544c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng // Print asm string. 1545c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng OS << " "; 1546c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng getOperand(InlineAsm::MIOp_AsmString).print(OS, TM); 1547c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng 1548c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng // Print HasSideEffects, IsAlignStack 1549c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng unsigned ExtraInfo = getOperand(InlineAsm::MIOp_ExtraInfo).getImm(); 1550c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng if (ExtraInfo & InlineAsm::Extra_HasSideEffects) 1551c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng OS << " [sideeffect]"; 1552c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng if (ExtraInfo & InlineAsm::Extra_IsAlignStack) 1553c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng OS << " [alignstack]"; 155477fffa6fdd389ad6d70a42b36c1c36c768c2de41Chad Rosier if (getInlineAsmDialect() == InlineAsm::AD_ATT) 1555576cd11ab8035d4240f7e6ea8d7c6c2e45154f86Chad Rosier OS << " [attdialect]"; 155677fffa6fdd389ad6d70a42b36c1c36c768c2de41Chad Rosier if (getInlineAsmDialect() == InlineAsm::AD_Intel) 1557576cd11ab8035d4240f7e6ea8d7c6c2e45154f86Chad Rosier OS << " [inteldialect]"; 1558c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng 15597a2ecd3f99ae4dede7e8c1984c2a08984be69363Jakob Stoklund Olesen StartOp = AsmDescOp = InlineAsm::MIOp_FirstOperand; 1560c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng FirstOp = false; 1561c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng } 1562c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng 1563c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng 15646a592271fb2946a0704b06fd66199987cdd40b3cChris Lattner for (unsigned i = StartOp, e = getNumOperands(); i != e; ++i) { 156580f6c5898113806130975fd56d24929b06bf54f8Dan Gohman const MachineOperand &MO = getOperand(i); 156680f6c5898113806130975fd56d24929b06bf54f8Dan Gohman 1567c9df025e33ac435adb3b3318d237c36ca7cec659Jakob Stoklund Olesen if (MO.isReg() && TargetRegisterInfo::isVirtualRegister(MO.getReg())) 1568a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen VirtRegs.push_back(MO.getReg()); 1569a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen 157080f6c5898113806130975fd56d24929b06bf54f8Dan Gohman // Omit call-clobbered registers which aren't used anywhere. This makes 157180f6c5898113806130975fd56d24929b06bf54f8Dan Gohman // call instructions much less noisy on targets where calls clobber lots 157280f6c5898113806130975fd56d24929b06bf54f8Dan Gohman // of registers. Don't rely on MO.isDead() because we may be called before 157380f6c5898113806130975fd56d24929b06bf54f8Dan Gohman // LiveVariables is run, or we may be looking at a non-allocatable reg. 15745a96b3dad2f634c9081c8b2b6c2575441dc5a2bdEvan Cheng if (MF && isCall() && 157580f6c5898113806130975fd56d24929b06bf54f8Dan Gohman MO.isReg() && MO.isImplicit() && MO.isDef()) { 157680f6c5898113806130975fd56d24929b06bf54f8Dan Gohman unsigned Reg = MO.getReg(); 1577c9df025e33ac435adb3b3318d237c36ca7cec659Jakob Stoklund Olesen if (TargetRegisterInfo::isPhysicalRegister(Reg)) { 157880f6c5898113806130975fd56d24929b06bf54f8Dan Gohman const MachineRegisterInfo &MRI = MF->getRegInfo(); 157980f6c5898113806130975fd56d24929b06bf54f8Dan Gohman if (MRI.use_empty(Reg) && !MRI.isLiveOut(Reg)) { 158080f6c5898113806130975fd56d24929b06bf54f8Dan Gohman bool HasAliasLive = false; 1581396618b43a85e12d290a90b181c6af5d7c0c5f11Jakob Stoklund Olesen for (MCRegAliasIterator AI(Reg, TM->getRegisterInfo(), true); 1582396618b43a85e12d290a90b181c6af5d7c0c5f11Jakob Stoklund Olesen AI.isValid(); ++AI) { 1583396618b43a85e12d290a90b181c6af5d7c0c5f11Jakob Stoklund Olesen unsigned AliasReg = *AI; 158480f6c5898113806130975fd56d24929b06bf54f8Dan Gohman if (!MRI.use_empty(AliasReg) || MRI.isLiveOut(AliasReg)) { 158580f6c5898113806130975fd56d24929b06bf54f8Dan Gohman HasAliasLive = true; 158680f6c5898113806130975fd56d24929b06bf54f8Dan Gohman break; 158780f6c5898113806130975fd56d24929b06bf54f8Dan Gohman } 1588396618b43a85e12d290a90b181c6af5d7c0c5f11Jakob Stoklund Olesen } 158980f6c5898113806130975fd56d24929b06bf54f8Dan Gohman if (!HasAliasLive) { 159080f6c5898113806130975fd56d24929b06bf54f8Dan Gohman OmittedAnyCallClobbers = true; 159180f6c5898113806130975fd56d24929b06bf54f8Dan Gohman continue; 159280f6c5898113806130975fd56d24929b06bf54f8Dan Gohman } 159380f6c5898113806130975fd56d24929b06bf54f8Dan Gohman } 159480f6c5898113806130975fd56d24929b06bf54f8Dan Gohman } 159580f6c5898113806130975fd56d24929b06bf54f8Dan Gohman } 159680f6c5898113806130975fd56d24929b06bf54f8Dan Gohman 159780f6c5898113806130975fd56d24929b06bf54f8Dan Gohman if (FirstOp) FirstOp = false; else OS << ","; 15986a592271fb2946a0704b06fd66199987cdd40b3cChris Lattner OS << " "; 1599b1bb4afbc7d801f9875be135c428b6f05511db5dJakob Stoklund Olesen if (i < getDesc().NumOperands) { 1600e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng const MCOperandInfo &MCOI = getDesc().OpInfo[i]; 1601e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng if (MCOI.isPredicate()) 1602b1bb4afbc7d801f9875be135c428b6f05511db5dJakob Stoklund Olesen OS << "pred:"; 1603e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng if (MCOI.isOptionalDef()) 1604b1bb4afbc7d801f9875be135c428b6f05511db5dJakob Stoklund Olesen OS << "opt:"; 1605b1bb4afbc7d801f9875be135c428b6f05511db5dJakob Stoklund Olesen } 160659b3655564bb6717b296ca9e71f13bf7db45b590Evan Cheng if (isDebugValue() && MO.isMetadata()) { 160759b3655564bb6717b296ca9e71f13bf7db45b590Evan Cheng // Pretty print DBG_VALUE instructions. 160859b3655564bb6717b296ca9e71f13bf7db45b590Evan Cheng const MDNode *MD = MO.getMetadata(); 160959b3655564bb6717b296ca9e71f13bf7db45b590Evan Cheng if (const MDString *MDS = dyn_cast<MDString>(MD->getOperand(2))) 161059b3655564bb6717b296ca9e71f13bf7db45b590Evan Cheng OS << "!\"" << MDS->getString() << '\"'; 161159b3655564bb6717b296ca9e71f13bf7db45b590Evan Cheng else 161259b3655564bb6717b296ca9e71f13bf7db45b590Evan Cheng MO.print(OS, TM); 1613b1e11455d1cf4df081a9593660d194c1a53b4334Jakob Stoklund Olesen } else if (TM && (isInsertSubreg() || isRegSequence()) && MO.isImm()) { 1614b1e11455d1cf4df081a9593660d194c1a53b4334Jakob Stoklund Olesen OS << TM->getRegisterInfo()->getSubRegIndexName(MO.getImm()); 16157a2ecd3f99ae4dede7e8c1984c2a08984be69363Jakob Stoklund Olesen } else if (i == AsmDescOp && MO.isImm()) { 16167a2ecd3f99ae4dede7e8c1984c2a08984be69363Jakob Stoklund Olesen // Pretty print the inline asm operand descriptor. 16177a2ecd3f99ae4dede7e8c1984c2a08984be69363Jakob Stoklund Olesen OS << '$' << AsmOpCount++; 16187a2ecd3f99ae4dede7e8c1984c2a08984be69363Jakob Stoklund Olesen unsigned Flag = MO.getImm(); 16197a2ecd3f99ae4dede7e8c1984c2a08984be69363Jakob Stoklund Olesen switch (InlineAsm::getKind(Flag)) { 1620459b74b9644c4741d93fe73adc2b06ca6bdb366dJakob Stoklund Olesen case InlineAsm::Kind_RegUse: OS << ":[reguse"; break; 1621459b74b9644c4741d93fe73adc2b06ca6bdb366dJakob Stoklund Olesen case InlineAsm::Kind_RegDef: OS << ":[regdef"; break; 1622459b74b9644c4741d93fe73adc2b06ca6bdb366dJakob Stoklund Olesen case InlineAsm::Kind_RegDefEarlyClobber: OS << ":[regdef-ec"; break; 1623459b74b9644c4741d93fe73adc2b06ca6bdb366dJakob Stoklund Olesen case InlineAsm::Kind_Clobber: OS << ":[clobber"; break; 1624459b74b9644c4741d93fe73adc2b06ca6bdb366dJakob Stoklund Olesen case InlineAsm::Kind_Imm: OS << ":[imm"; break; 1625459b74b9644c4741d93fe73adc2b06ca6bdb366dJakob Stoklund Olesen case InlineAsm::Kind_Mem: OS << ":[mem"; break; 1626459b74b9644c4741d93fe73adc2b06ca6bdb366dJakob Stoklund Olesen default: OS << ":[??" << InlineAsm::getKind(Flag); break; 16277a2ecd3f99ae4dede7e8c1984c2a08984be69363Jakob Stoklund Olesen } 16287a2ecd3f99ae4dede7e8c1984c2a08984be69363Jakob Stoklund Olesen 1629459b74b9644c4741d93fe73adc2b06ca6bdb366dJakob Stoklund Olesen unsigned RCID = 0; 16303821b1885e13dcdda6aa2853f1317d3288256685Nick Lewycky if (InlineAsm::hasRegClassConstraint(Flag, RCID)) { 1631459b74b9644c4741d93fe73adc2b06ca6bdb366dJakob Stoklund Olesen if (TM) 1632459b74b9644c4741d93fe73adc2b06ca6bdb366dJakob Stoklund Olesen OS << ':' << TM->getRegisterInfo()->getRegClass(RCID)->getName(); 1633459b74b9644c4741d93fe73adc2b06ca6bdb366dJakob Stoklund Olesen else 1634459b74b9644c4741d93fe73adc2b06ca6bdb366dJakob Stoklund Olesen OS << ":RC" << RCID; 16353821b1885e13dcdda6aa2853f1317d3288256685Nick Lewycky } 1636459b74b9644c4741d93fe73adc2b06ca6bdb366dJakob Stoklund Olesen 16377a2ecd3f99ae4dede7e8c1984c2a08984be69363Jakob Stoklund Olesen unsigned TiedTo = 0; 16387a2ecd3f99ae4dede7e8c1984c2a08984be69363Jakob Stoklund Olesen if (InlineAsm::isUseOperandTiedToDef(Flag, TiedTo)) 1639459b74b9644c4741d93fe73adc2b06ca6bdb366dJakob Stoklund Olesen OS << " tiedto:$" << TiedTo; 1640459b74b9644c4741d93fe73adc2b06ca6bdb366dJakob Stoklund Olesen 1641459b74b9644c4741d93fe73adc2b06ca6bdb366dJakob Stoklund Olesen OS << ']'; 16427a2ecd3f99ae4dede7e8c1984c2a08984be69363Jakob Stoklund Olesen 16437a2ecd3f99ae4dede7e8c1984c2a08984be69363Jakob Stoklund Olesen // Compute the index of the next operand descriptor. 16447a2ecd3f99ae4dede7e8c1984c2a08984be69363Jakob Stoklund Olesen AsmDescOp += 1 + InlineAsm::getNumOperandRegisters(Flag); 164559b3655564bb6717b296ca9e71f13bf7db45b590Evan Cheng } else 164659b3655564bb6717b296ca9e71f13bf7db45b590Evan Cheng MO.print(OS, TM); 164780f6c5898113806130975fd56d24929b06bf54f8Dan Gohman } 164880f6c5898113806130975fd56d24929b06bf54f8Dan Gohman 164980f6c5898113806130975fd56d24929b06bf54f8Dan Gohman // Briefly indicate whether any call clobbers were omitted. 165080f6c5898113806130975fd56d24929b06bf54f8Dan Gohman if (OmittedAnyCallClobbers) { 1651164558e59c2a321bf670e31a7bdde0d38d79bb67Bill Wendling if (!FirstOp) OS << ","; 165280f6c5898113806130975fd56d24929b06bf54f8Dan Gohman OS << " ..."; 16531049164aa6b06d91d9b3b557a9a213eaf3f6319aChris Lattner } 1654edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 16550ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman bool HaveSemi = false; 16566dd97471c43805b3febf598d50498a09a02e93f4Anton Korobeynikov if (Flags) { 16576dd97471c43805b3febf598d50498a09a02e93f4Anton Korobeynikov if (!HaveSemi) OS << ";"; HaveSemi = true; 16586dd97471c43805b3febf598d50498a09a02e93f4Anton Korobeynikov OS << " flags: "; 16596dd97471c43805b3febf598d50498a09a02e93f4Anton Korobeynikov 16606dd97471c43805b3febf598d50498a09a02e93f4Anton Korobeynikov if (Flags & FrameSetup) 16616dd97471c43805b3febf598d50498a09a02e93f4Anton Korobeynikov OS << "FrameSetup"; 16626dd97471c43805b3febf598d50498a09a02e93f4Anton Korobeynikov } 16636dd97471c43805b3febf598d50498a09a02e93f4Anton Korobeynikov 16648e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman if (!memoperands_empty()) { 16650ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman if (!HaveSemi) OS << ";"; HaveSemi = true; 16660ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman 16670ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman OS << " mem:"; 1668c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman for (mmo_iterator i = memoperands_begin(), e = memoperands_end(); 1669c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman i != e; ++i) { 1670c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman OS << **i; 1671ee56c42168f6c4271593f6018c4409b6a5910302Oscar Fuentes if (llvm::next(i) != e) 1672cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman OS << " "; 167369de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman } 167469de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman } 167569de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman 1676a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen // Print the regclass of any virtual registers encountered. 1677a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen if (MRI && !VirtRegs.empty()) { 1678a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen if (!HaveSemi) OS << ";"; HaveSemi = true; 1679a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen for (unsigned i = 0; i != VirtRegs.size(); ++i) { 1680a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen const TargetRegisterClass *RC = MRI->getRegClass(VirtRegs[i]); 16814314268128be6d54c9a7f0709680e5a5b40f3ab3Jakob Stoklund Olesen OS << " " << RC->getName() << ':' << PrintReg(VirtRegs[i]); 1682a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen for (unsigned j = i+1; j != VirtRegs.size();) { 1683a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen if (MRI->getRegClass(VirtRegs[j]) != RC) { 1684a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen ++j; 1685a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen continue; 1686a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen } 1687a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen if (VirtRegs[i] != VirtRegs[j]) 16884314268128be6d54c9a7f0709680e5a5b40f3ab3Jakob Stoklund Olesen OS << "," << PrintReg(VirtRegs[j]); 1689a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen VirtRegs.erase(VirtRegs.begin()+j); 1690a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen } 1691a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen } 1692a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen } 1693a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen 16946dd97471c43805b3febf598d50498a09a02e93f4Anton Korobeynikov // Print debug location information. 16954d3586dd230a3b16018da138404dbb87faf2008dDevang Patel if (isDebugValue() && getOperand(e - 1).isMetadata()) { 16964d3586dd230a3b16018da138404dbb87faf2008dDevang Patel if (!HaveSemi) OS << ";"; HaveSemi = true; 16974d3586dd230a3b16018da138404dbb87faf2008dDevang Patel DIVariable DV(getOperand(e - 1).getMetadata()); 16984d3586dd230a3b16018da138404dbb87faf2008dDevang Patel OS << " line no:" << DV.getLineNumber(); 16994d3586dd230a3b16018da138404dbb87faf2008dDevang Patel if (MDNode *InlinedAt = DV.getInlinedAt()) { 17004d3586dd230a3b16018da138404dbb87faf2008dDevang Patel DebugLoc InlinedAtDL = DebugLoc::getFromDILocation(InlinedAt); 17014d3586dd230a3b16018da138404dbb87faf2008dDevang Patel if (!InlinedAtDL.isUnknown()) { 17024d3586dd230a3b16018da138404dbb87faf2008dDevang Patel OS << " inlined @[ "; 17034d3586dd230a3b16018da138404dbb87faf2008dDevang Patel printDebugLoc(InlinedAtDL, MF, OS); 17044d3586dd230a3b16018da138404dbb87faf2008dDevang Patel OS << " ]"; 17054d3586dd230a3b16018da138404dbb87faf2008dDevang Patel } 17064d3586dd230a3b16018da138404dbb87faf2008dDevang Patel } 17074d3586dd230a3b16018da138404dbb87faf2008dDevang Patel } else if (!debugLoc.isUnknown() && MF) { 17086dd97471c43805b3febf598d50498a09a02e93f4Anton Korobeynikov if (!HaveSemi) OS << ";"; HaveSemi = true; 170975ae593a2750f9f7995980c3a03c0d972985e394Dan Gohman OS << " dbg:"; 1710da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel printDebugLoc(debugLoc, MF, OS); 1711b5ef27375731ece13a8ae0102b3f3233351036afBill Wendling } 1712b5ef27375731ece13a8ae0102b3f3233351036afBill Wendling 17136dd97471c43805b3febf598d50498a09a02e93f4Anton Korobeynikov OS << '\n'; 17141049164aa6b06d91d9b3b557a9a213eaf3f6319aChris Lattner} 17151049164aa6b06d91d9b3b557a9a213eaf3f6319aChris Lattner 1716b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Andersonbool MachineInstr::addRegisterKilled(unsigned IncomingReg, 17176f0d024a534af18d9e60b3ea757376cd8a3a980eDan Gohman const TargetRegisterInfo *RegInfo, 1718b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson bool AddIfNotFound) { 17199b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng bool isPhysReg = TargetRegisterInfo::isPhysicalRegister(IncomingReg); 1720396618b43a85e12d290a90b181c6af5d7c0c5f11Jakob Stoklund Olesen bool hasAliases = isPhysReg && 1721396618b43a85e12d290a90b181c6af5d7c0c5f11Jakob Stoklund Olesen MCRegAliasIterator(IncomingReg, RegInfo, false).isValid(); 17223f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman bool Found = false; 17239b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng SmallVector<unsigned,4> DeadOps; 17244a23d72ec21d1bdfda69fd16c9fc10cec39f1fedBill Wendling for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 17254a23d72ec21d1bdfda69fd16c9fc10cec39f1fedBill Wendling MachineOperand &MO = getOperand(i); 1726efb8e3e113cbf359d6a838c3b37fedc8305d19bbJakob Stoklund Olesen if (!MO.isReg() || !MO.isUse() || MO.isUndef()) 17279b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng continue; 17289b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng unsigned Reg = MO.getReg(); 17299b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng if (!Reg) 17309b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng continue; 17314a23d72ec21d1bdfda69fd16c9fc10cec39f1fedBill Wendling 17329b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng if (Reg == IncomingReg) { 17333f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman if (!Found) { 17343f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman if (MO.isKill()) 17353f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman // The register is already marked kill. 17363f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman return true; 1737ece48185168ab130b1777feb86d9e3fe80eb87d2Jakob Stoklund Olesen if (isPhysReg && isRegTiedToDefOperand(i)) 1738ece48185168ab130b1777feb86d9e3fe80eb87d2Jakob Stoklund Olesen // Two-address uses of physregs must not be marked kill. 1739ece48185168ab130b1777feb86d9e3fe80eb87d2Jakob Stoklund Olesen return true; 17403f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman MO.setIsKill(); 17413f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman Found = true; 17423f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman } 17433f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman } else if (hasAliases && MO.isKill() && 17443f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman TargetRegisterInfo::isPhysicalRegister(Reg)) { 17459b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng // A super-register kill already exists. 17469b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng if (RegInfo->isSuperRegister(IncomingReg, Reg)) 17472ebc11ac6d19ec806da97bd4f2d49a27932d09fbDan Gohman return true; 17482ebc11ac6d19ec806da97bd4f2d49a27932d09fbDan Gohman if (RegInfo->isSubRegister(IncomingReg, Reg)) 17499b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng DeadOps.push_back(i); 1750b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson } 1751b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson } 1752b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson 17539b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng // Trim unneeded kill operands. 17549b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng while (!DeadOps.empty()) { 17559b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng unsigned OpIdx = DeadOps.back(); 17569b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng if (getOperand(OpIdx).isImplicit()) 17579b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng RemoveOperand(OpIdx); 17589b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng else 17599b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng getOperand(OpIdx).setIsKill(false); 17609b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng DeadOps.pop_back(); 17619b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng } 17629b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng 17634a23d72ec21d1bdfda69fd16c9fc10cec39f1fedBill Wendling // If not found, this means an alias of one of the operands is killed. Add a 1764b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson // new implicit operand if required. 17653f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman if (!Found && AddIfNotFound) { 17664a23d72ec21d1bdfda69fd16c9fc10cec39f1fedBill Wendling addOperand(MachineOperand::CreateReg(IncomingReg, 17674a23d72ec21d1bdfda69fd16c9fc10cec39f1fedBill Wendling false /*IsDef*/, 17684a23d72ec21d1bdfda69fd16c9fc10cec39f1fedBill Wendling true /*IsImp*/, 17694a23d72ec21d1bdfda69fd16c9fc10cec39f1fedBill Wendling true /*IsKill*/)); 1770b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson return true; 1771b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson } 17723f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman return Found; 1773b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson} 1774b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson 17751a96c914315b0286d84c507d696484e2c95875a4Jakob Stoklund Olesenvoid MachineInstr::clearRegisterKills(unsigned Reg, 17761a96c914315b0286d84c507d696484e2c95875a4Jakob Stoklund Olesen const TargetRegisterInfo *RegInfo) { 17771a96c914315b0286d84c507d696484e2c95875a4Jakob Stoklund Olesen if (!TargetRegisterInfo::isPhysicalRegister(Reg)) 17781a96c914315b0286d84c507d696484e2c95875a4Jakob Stoklund Olesen RegInfo = 0; 17791a96c914315b0286d84c507d696484e2c95875a4Jakob Stoklund Olesen for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 17801a96c914315b0286d84c507d696484e2c95875a4Jakob Stoklund Olesen MachineOperand &MO = getOperand(i); 17811a96c914315b0286d84c507d696484e2c95875a4Jakob Stoklund Olesen if (!MO.isReg() || !MO.isUse() || !MO.isKill()) 17821a96c914315b0286d84c507d696484e2c95875a4Jakob Stoklund Olesen continue; 17831a96c914315b0286d84c507d696484e2c95875a4Jakob Stoklund Olesen unsigned OpReg = MO.getReg(); 17841a96c914315b0286d84c507d696484e2c95875a4Jakob Stoklund Olesen if (OpReg == Reg || (RegInfo && RegInfo->isSuperRegister(Reg, OpReg))) 17851a96c914315b0286d84c507d696484e2c95875a4Jakob Stoklund Olesen MO.setIsKill(false); 17861a96c914315b0286d84c507d696484e2c95875a4Jakob Stoklund Olesen } 17871a96c914315b0286d84c507d696484e2c95875a4Jakob Stoklund Olesen} 17881a96c914315b0286d84c507d696484e2c95875a4Jakob Stoklund Olesen 1789b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Andersonbool MachineInstr::addRegisterDead(unsigned IncomingReg, 17906f0d024a534af18d9e60b3ea757376cd8a3a980eDan Gohman const TargetRegisterInfo *RegInfo, 1791b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson bool AddIfNotFound) { 17929b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng bool isPhysReg = TargetRegisterInfo::isPhysicalRegister(IncomingReg); 1793396618b43a85e12d290a90b181c6af5d7c0c5f11Jakob Stoklund Olesen bool hasAliases = isPhysReg && 1794396618b43a85e12d290a90b181c6af5d7c0c5f11Jakob Stoklund Olesen MCRegAliasIterator(IncomingReg, RegInfo, false).isValid(); 17953f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman bool Found = false; 17969b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng SmallVector<unsigned,4> DeadOps; 1797b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 1798b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson MachineOperand &MO = getOperand(i); 1799d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (!MO.isReg() || !MO.isDef()) 18009b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng continue; 18019b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng unsigned Reg = MO.getReg(); 18023f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman if (!Reg) 18033f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman continue; 18043f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman 18059b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng if (Reg == IncomingReg) { 1806b793bc1ccabef36b3223bae69f5e94a8e98d22ebJakob Stoklund Olesen MO.setIsDead(); 1807b793bc1ccabef36b3223bae69f5e94a8e98d22ebJakob Stoklund Olesen Found = true; 18083f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman } else if (hasAliases && MO.isDead() && 18093f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman TargetRegisterInfo::isPhysicalRegister(Reg)) { 18109b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng // There exists a super-register that's marked dead. 18119b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng if (RegInfo->isSuperRegister(IncomingReg, Reg)) 18122ebc11ac6d19ec806da97bd4f2d49a27932d09fbDan Gohman return true; 1813275fd2523edd30e75af6398c25d47e94cc32f150Jakob Stoklund Olesen if (RegInfo->isSubRegister(IncomingReg, Reg)) 18149b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng DeadOps.push_back(i); 1815b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson } 1816b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson } 1817b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson 18189b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng // Trim unneeded dead operands. 18199b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng while (!DeadOps.empty()) { 18209b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng unsigned OpIdx = DeadOps.back(); 18219b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng if (getOperand(OpIdx).isImplicit()) 18229b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng RemoveOperand(OpIdx); 18239b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng else 18249b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng getOperand(OpIdx).setIsDead(false); 18259b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng DeadOps.pop_back(); 18269b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng } 18279b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng 18283f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman // If not found, this means an alias of one of the operands is dead. Add a 18293f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman // new implicit operand if required. 183031530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner if (Found || !AddIfNotFound) 183131530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner return Found; 1832ee61d67c2f1105e23b2ea5110389f3b7b713b504Jim Grosbach 183331530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner addOperand(MachineOperand::CreateReg(IncomingReg, 183431530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner true /*IsDef*/, 183531530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner true /*IsImp*/, 183631530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner false /*IsKill*/, 183731530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner true /*IsDead*/)); 183831530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner return true; 1839b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson} 18408efadf94b568c08de3ff8ce35fd904a935387406Jakob Stoklund Olesen 18418efadf94b568c08de3ff8ce35fd904a935387406Jakob Stoklund Olesenvoid MachineInstr::addRegisterDefined(unsigned IncomingReg, 18428efadf94b568c08de3ff8ce35fd904a935387406Jakob Stoklund Olesen const TargetRegisterInfo *RegInfo) { 184363e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen if (TargetRegisterInfo::isPhysicalRegister(IncomingReg)) { 184463e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen MachineOperand *MO = findRegisterDefOperand(IncomingReg, false, RegInfo); 184563e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen if (MO) 184663e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen return; 184763e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen } else { 184863e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 184963e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen const MachineOperand &MO = getOperand(i); 185063e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen if (MO.isReg() && MO.getReg() == IncomingReg && MO.isDef() && 185163e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen MO.getSubReg() == 0) 185263e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen return; 185363e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen } 185463e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen } 185563e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen addOperand(MachineOperand::CreateReg(IncomingReg, 185663e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen true /*IsDef*/, 185763e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen true /*IsImp*/)); 18588efadf94b568c08de3ff8ce35fd904a935387406Jakob Stoklund Olesen} 185967eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Cheng 1860a37818dbb119bda75273f16b8484732e742cdbb7Jakob Stoklund Olesenvoid MachineInstr::setPhysRegsDeadExcept(ArrayRef<unsigned> UsedRegs, 1861db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman const TargetRegisterInfo &TRI) { 186277180e0b402fff318cffd89a2251e46b3dce4064Jakob Stoklund Olesen bool HasRegMask = false; 1863db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 1864db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman MachineOperand &MO = getOperand(i); 186577180e0b402fff318cffd89a2251e46b3dce4064Jakob Stoklund Olesen if (MO.isRegMask()) { 186677180e0b402fff318cffd89a2251e46b3dce4064Jakob Stoklund Olesen HasRegMask = true; 186777180e0b402fff318cffd89a2251e46b3dce4064Jakob Stoklund Olesen continue; 186877180e0b402fff318cffd89a2251e46b3dce4064Jakob Stoklund Olesen } 1869db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman if (!MO.isReg() || !MO.isDef()) continue; 1870db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman unsigned Reg = MO.getReg(); 187159cb77fb11ec547f60ef0ff4a8ccf3bd8007ae46Jakob Stoklund Olesen if (!TargetRegisterInfo::isPhysicalRegister(Reg)) continue; 1872db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman bool Dead = true; 1873a37818dbb119bda75273f16b8484732e742cdbb7Jakob Stoklund Olesen for (ArrayRef<unsigned>::iterator I = UsedRegs.begin(), E = UsedRegs.end(); 1874a37818dbb119bda75273f16b8484732e742cdbb7Jakob Stoklund Olesen I != E; ++I) 1875db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman if (TRI.regsOverlap(*I, Reg)) { 1876db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman Dead = false; 1877db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman break; 1878db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman } 1879db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman // If there are no uses, including partial uses, the def is dead. 1880db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman if (Dead) MO.setIsDead(); 1881db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman } 188277180e0b402fff318cffd89a2251e46b3dce4064Jakob Stoklund Olesen 188377180e0b402fff318cffd89a2251e46b3dce4064Jakob Stoklund Olesen // This is a call with a register mask operand. 188477180e0b402fff318cffd89a2251e46b3dce4064Jakob Stoklund Olesen // Mask clobbers are always dead, so add defs for the non-dead defines. 188577180e0b402fff318cffd89a2251e46b3dce4064Jakob Stoklund Olesen if (HasRegMask) 188677180e0b402fff318cffd89a2251e46b3dce4064Jakob Stoklund Olesen for (ArrayRef<unsigned>::iterator I = UsedRegs.begin(), E = UsedRegs.end(); 188777180e0b402fff318cffd89a2251e46b3dce4064Jakob Stoklund Olesen I != E; ++I) 188877180e0b402fff318cffd89a2251e46b3dce4064Jakob Stoklund Olesen addRegisterDefined(*I, &TRI); 1889db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman} 1890db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman 189167eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Chengunsigned 189267eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan ChengMachineInstrExpressionTrait::getHashValue(const MachineInstr* const &MI) { 1893fc22625eb04d39b0de77090702cf50a9bcda3ddbChandler Carruth // Build up a buffer of hash code components. 1894fc22625eb04d39b0de77090702cf50a9bcda3ddbChandler Carruth SmallVector<size_t, 8> HashComponents; 1895fc22625eb04d39b0de77090702cf50a9bcda3ddbChandler Carruth HashComponents.reserve(MI->getNumOperands() + 1); 1896fc22625eb04d39b0de77090702cf50a9bcda3ddbChandler Carruth HashComponents.push_back(MI->getOpcode()); 189767eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Cheng for (unsigned i = 0, e = MI->getNumOperands(); i != e; ++i) { 189867eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Cheng const MachineOperand &MO = MI->getOperand(i); 1899d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth if (MO.isReg() && MO.isDef() && 1900d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth TargetRegisterInfo::isVirtualRegister(MO.getReg())) 1901d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth continue; // Skip virtual register defs. 1902d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth 1903d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth HashComponents.push_back(hash_value(MO)); 1904fc22625eb04d39b0de77090702cf50a9bcda3ddbChandler Carruth } 1905fc22625eb04d39b0de77090702cf50a9bcda3ddbChandler Carruth return hash_combine_range(HashComponents.begin(), HashComponents.end()); 190667eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Cheng} 1907d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen 1908d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesenvoid MachineInstr::emitError(StringRef Msg) const { 1909d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen // Find the source location cookie. 1910d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen unsigned LocCookie = 0; 1911d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen const MDNode *LocMD = 0; 1912d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen for (unsigned i = getNumOperands(); i != 0; --i) { 1913d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen if (getOperand(i-1).isMetadata() && 1914d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen (LocMD = getOperand(i-1).getMetadata()) && 1915d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen LocMD->getNumOperands() != 0) { 1916d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen if (const ConstantInt *CI = dyn_cast<ConstantInt>(LocMD->getOperand(0))) { 1917d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen LocCookie = CI->getZExtValue(); 1918d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen break; 1919d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen } 1920d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen } 1921d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen } 1922d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen 1923d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen if (const MachineBasicBlock *MBB = getParent()) 1924d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen if (const MachineFunction *MF = MBB->getParent()) 1925d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen return MF->getMMI().getModule()->getContext().emitError(LocCookie, Msg); 1926d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen report_fatal_error(Msg); 1927d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen} 1928