MachineInstr.cpp revision 84be3d5a73313eb19f2f9e0512153cd2e6f46c54
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" 15d04a8d4b33ff316ca4cf961e06c9e312eff8e64fChandler Carruth#include "llvm/ADT/FoldingSet.h" 16d04a8d4b33ff316ca4cf961e06c9e312eff8e64fChandler Carruth#include "llvm/ADT/Hashing.h" 17d04a8d4b33ff316ca4cf961e06c9e312eff8e64fChandler Carruth#include "llvm/Analysis/AliasAnalysis.h" 18cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman#include "llvm/Assembly/Writer.h" 19506049f29f4f202a8e45feb916cc0264440a7f6dEvan Cheng#include "llvm/CodeGen/MachineConstantPool.h" 208517e1f0beea9b5e47974f083396d53294c390adChris Lattner#include "llvm/CodeGen/MachineFunction.h" 21c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman#include "llvm/CodeGen/MachineMemOperand.h" 22d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen#include "llvm/CodeGen/MachineModuleInfo.h" 2362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner#include "llvm/CodeGen/MachineRegisterInfo.h" 2469de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman#include "llvm/CodeGen/PseudoSourceValue.h" 25d04a8d4b33ff316ca4cf961e06c9e312eff8e64fChandler Carruth#include "llvm/DebugInfo.h" 260b8c9a80f20772c3793201ab5b251d3520b9cea3Chandler Carruth#include "llvm/IR/Constants.h" 270b8c9a80f20772c3793201ab5b251d3520b9cea3Chandler Carruth#include "llvm/IR/Function.h" 280b8c9a80f20772c3793201ab5b251d3520b9cea3Chandler Carruth#include "llvm/IR/InlineAsm.h" 290b8c9a80f20772c3793201ab5b251d3520b9cea3Chandler Carruth#include "llvm/IR/LLVMContext.h" 300b8c9a80f20772c3793201ab5b251d3520b9cea3Chandler Carruth#include "llvm/IR/Metadata.h" 310b8c9a80f20772c3793201ab5b251d3520b9cea3Chandler Carruth#include "llvm/IR/Module.h" 320b8c9a80f20772c3793201ab5b251d3520b9cea3Chandler Carruth#include "llvm/IR/Type.h" 330b8c9a80f20772c3793201ab5b251d3520b9cea3Chandler Carruth#include "llvm/IR/Value.h" 34e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng#include "llvm/MC/MCInstrDesc.h" 3572aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner#include "llvm/MC/MCSymbol.h" 363b325334102144ec39910563eabebde434504564David Greene#include "llvm/Support/Debug.h" 37c25e7581b9b8088910da31702d4ca21c4734c6d7Torok Edwin#include "llvm/Support/ErrorHandling.h" 38ce42e404a26454f4332c2c350c75ad27bbbb16f7Dan Gohman#include "llvm/Support/MathExtras.h" 39edfb72c6288118ab9c900a560ded89dfaa107296Chris Lattner#include "llvm/Support/raw_ostream.h" 40d04a8d4b33ff316ca4cf961e06c9e312eff8e64fChandler Carruth#include "llvm/Target/TargetInstrInfo.h" 41d04a8d4b33ff316ca4cf961e06c9e312eff8e64fChandler Carruth#include "llvm/Target/TargetMachine.h" 42d04a8d4b33ff316ca4cf961e06c9e312eff8e64fChandler Carruth#include "llvm/Target/TargetRegisterInfo.h" 430742b59913a7760eb26f08121cd244a37e83e3b3Chris Lattnerusing namespace llvm; 44d0fde30ce850b78371fd1386338350591f9ff494Brian Gaeke 45f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner//===----------------------------------------------------------------------===// 46f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner// MachineOperand Implementation 47f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner//===----------------------------------------------------------------------===// 48f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner 4962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattnervoid MachineOperand::setReg(unsigned Reg) { 5062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (getReg() == Reg) return; // No change. 51ee61d67c2f1105e23b2ea5110389f3b7b713b504Jim Grosbach 5262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Otherwise, we have to change the register. If this operand is embedded 5362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // into a machine function, we need to update the old and new register's 5462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // use/def lists. 5562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (MachineInstr *MI = getParent()) 5662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (MachineBasicBlock *MBB = MI->getParent()) 5762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (MachineFunction *MF = MBB->getParent()) { 58ff2b99afc8cbc6cfa73181072888e0f9f07deb7eJakob Stoklund Olesen MachineRegisterInfo &MRI = MF->getRegInfo(); 59ff2b99afc8cbc6cfa73181072888e0f9f07deb7eJakob Stoklund Olesen MRI.removeRegOperandFromUseList(this); 602594746045258958673ebe42db2a27a4d05b0b73Jakob Stoklund Olesen SmallContents.RegNo = Reg; 61ff2b99afc8cbc6cfa73181072888e0f9f07deb7eJakob Stoklund Olesen MRI.addRegOperandToUseList(this); 6262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner return; 6362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 64ee61d67c2f1105e23b2ea5110389f3b7b713b504Jim Grosbach 6562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Otherwise, just change the register, no problem. :) 662594746045258958673ebe42db2a27a4d05b0b73Jakob Stoklund Olesen SmallContents.RegNo = Reg; 6762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner} 6862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 692da53370241fdd1b5c291483311b34e609f06c73Jakob Stoklund Olesenvoid MachineOperand::substVirtReg(unsigned Reg, unsigned SubIdx, 702da53370241fdd1b5c291483311b34e609f06c73Jakob Stoklund Olesen const TargetRegisterInfo &TRI) { 712da53370241fdd1b5c291483311b34e609f06c73Jakob Stoklund Olesen assert(TargetRegisterInfo::isVirtualRegister(Reg)); 722da53370241fdd1b5c291483311b34e609f06c73Jakob Stoklund Olesen if (SubIdx && getSubReg()) 732da53370241fdd1b5c291483311b34e609f06c73Jakob Stoklund Olesen SubIdx = TRI.composeSubRegIndices(SubIdx, getSubReg()); 742da53370241fdd1b5c291483311b34e609f06c73Jakob Stoklund Olesen setReg(Reg); 75a5135f60dd95275dcbc1123f866889151ced933dJakob Stoklund Olesen if (SubIdx) 76a5135f60dd95275dcbc1123f866889151ced933dJakob Stoklund Olesen setSubReg(SubIdx); 772da53370241fdd1b5c291483311b34e609f06c73Jakob Stoklund Olesen} 782da53370241fdd1b5c291483311b34e609f06c73Jakob Stoklund Olesen 792da53370241fdd1b5c291483311b34e609f06c73Jakob Stoklund Olesenvoid MachineOperand::substPhysReg(unsigned Reg, const TargetRegisterInfo &TRI) { 802da53370241fdd1b5c291483311b34e609f06c73Jakob Stoklund Olesen assert(TargetRegisterInfo::isPhysicalRegister(Reg)); 812da53370241fdd1b5c291483311b34e609f06c73Jakob Stoklund Olesen if (getSubReg()) { 822da53370241fdd1b5c291483311b34e609f06c73Jakob Stoklund Olesen Reg = TRI.getSubReg(Reg, getSubReg()); 83cf724f078623e786fc92335fdb0ec70b46f2e86dJakob Stoklund Olesen // Note that getSubReg() may return 0 if the sub-register doesn't exist. 84cf724f078623e786fc92335fdb0ec70b46f2e86dJakob Stoklund Olesen // That won't happen in legal code. 852da53370241fdd1b5c291483311b34e609f06c73Jakob Stoklund Olesen setSubReg(0); 862da53370241fdd1b5c291483311b34e609f06c73Jakob Stoklund Olesen } 872da53370241fdd1b5c291483311b34e609f06c73Jakob Stoklund Olesen setReg(Reg); 882da53370241fdd1b5c291483311b34e609f06c73Jakob Stoklund Olesen} 892da53370241fdd1b5c291483311b34e609f06c73Jakob Stoklund Olesen 90d6397eba2389e8a24d37aa56e049187c1ee75f4fJakob Stoklund Olesen/// Change a def to a use, or a use to a def. 91d6397eba2389e8a24d37aa56e049187c1ee75f4fJakob Stoklund Olesenvoid MachineOperand::setIsDef(bool Val) { 92d6397eba2389e8a24d37aa56e049187c1ee75f4fJakob Stoklund Olesen assert(isReg() && "Wrong MachineOperand accessor"); 93d6397eba2389e8a24d37aa56e049187c1ee75f4fJakob Stoklund Olesen assert((!Val || !isDebug()) && "Marking a debug operation as def"); 94d6397eba2389e8a24d37aa56e049187c1ee75f4fJakob Stoklund Olesen if (IsDef == Val) 95d6397eba2389e8a24d37aa56e049187c1ee75f4fJakob Stoklund Olesen return; 96d6397eba2389e8a24d37aa56e049187c1ee75f4fJakob Stoklund Olesen // MRI may keep uses and defs in different list positions. 97d6397eba2389e8a24d37aa56e049187c1ee75f4fJakob Stoklund Olesen if (MachineInstr *MI = getParent()) 98d6397eba2389e8a24d37aa56e049187c1ee75f4fJakob Stoklund Olesen if (MachineBasicBlock *MBB = MI->getParent()) 99d6397eba2389e8a24d37aa56e049187c1ee75f4fJakob Stoklund Olesen if (MachineFunction *MF = MBB->getParent()) { 100d6397eba2389e8a24d37aa56e049187c1ee75f4fJakob Stoklund Olesen MachineRegisterInfo &MRI = MF->getRegInfo(); 101d6397eba2389e8a24d37aa56e049187c1ee75f4fJakob Stoklund Olesen MRI.removeRegOperandFromUseList(this); 102d6397eba2389e8a24d37aa56e049187c1ee75f4fJakob Stoklund Olesen IsDef = Val; 103d6397eba2389e8a24d37aa56e049187c1ee75f4fJakob Stoklund Olesen MRI.addRegOperandToUseList(this); 104d6397eba2389e8a24d37aa56e049187c1ee75f4fJakob Stoklund Olesen return; 105d6397eba2389e8a24d37aa56e049187c1ee75f4fJakob Stoklund Olesen } 106d6397eba2389e8a24d37aa56e049187c1ee75f4fJakob Stoklund Olesen IsDef = Val; 107d6397eba2389e8a24d37aa56e049187c1ee75f4fJakob Stoklund Olesen} 108d6397eba2389e8a24d37aa56e049187c1ee75f4fJakob Stoklund Olesen 10962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// ChangeToImmediate - Replace this operand with a new immediate operand of 11062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// the specified value. If an operand is known to be an immediate already, 11162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// the setImm method should be used. 11262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattnervoid MachineOperand::ChangeToImmediate(int64_t ImmVal) { 113699ac049517285d978ed607b2735976c5ae97ac0Jakob Stoklund Olesen assert((!isReg() || !isTied()) && "Cannot change a tied operand into an imm"); 11462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // If this operand is currently a register operand, and if this is in a 11562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // function, deregister the operand from the register's use/def list. 116ff2b99afc8cbc6cfa73181072888e0f9f07deb7eJakob Stoklund Olesen if (isReg() && isOnRegUseList()) 117ff2b99afc8cbc6cfa73181072888e0f9f07deb7eJakob Stoklund Olesen if (MachineInstr *MI = getParent()) 118ff2b99afc8cbc6cfa73181072888e0f9f07deb7eJakob Stoklund Olesen if (MachineBasicBlock *MBB = MI->getParent()) 119ff2b99afc8cbc6cfa73181072888e0f9f07deb7eJakob Stoklund Olesen if (MachineFunction *MF = MBB->getParent()) 120ff2b99afc8cbc6cfa73181072888e0f9f07deb7eJakob Stoklund Olesen MF->getRegInfo().removeRegOperandFromUseList(this); 121ee61d67c2f1105e23b2ea5110389f3b7b713b504Jim Grosbach 12262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner OpKind = MO_Immediate; 12362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Contents.ImmVal = ImmVal; 12462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner} 12562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 12662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// ChangeToRegister - Replace this operand with a new register operand of 12762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// the specified value. If an operand is known to be an register already, 12862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// the setReg method should be used. 12962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattnervoid MachineOperand::ChangeToRegister(unsigned Reg, bool isDef, bool isImp, 1309653f9ec970147a12216d787078eab2f8b9c122aDale Johannesen bool isKill, bool isDead, bool isUndef, 1319653f9ec970147a12216d787078eab2f8b9c122aDale Johannesen bool isDebug) { 132d6397eba2389e8a24d37aa56e049187c1ee75f4fJakob Stoklund Olesen MachineRegisterInfo *RegInfo = 0; 133d6397eba2389e8a24d37aa56e049187c1ee75f4fJakob Stoklund Olesen if (MachineInstr *MI = getParent()) 134d6397eba2389e8a24d37aa56e049187c1ee75f4fJakob Stoklund Olesen if (MachineBasicBlock *MBB = MI->getParent()) 135d6397eba2389e8a24d37aa56e049187c1ee75f4fJakob Stoklund Olesen if (MachineFunction *MF = MBB->getParent()) 136d6397eba2389e8a24d37aa56e049187c1ee75f4fJakob Stoklund Olesen RegInfo = &MF->getRegInfo(); 137d6397eba2389e8a24d37aa56e049187c1ee75f4fJakob Stoklund Olesen // If this operand is already a register operand, remove it from the 13862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // register's use/def lists. 139699ac049517285d978ed607b2735976c5ae97ac0Jakob Stoklund Olesen bool WasReg = isReg(); 140699ac049517285d978ed607b2735976c5ae97ac0Jakob Stoklund Olesen if (RegInfo && WasReg) 141d6397eba2389e8a24d37aa56e049187c1ee75f4fJakob Stoklund Olesen RegInfo->removeRegOperandFromUseList(this); 14262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 143d6397eba2389e8a24d37aa56e049187c1ee75f4fJakob Stoklund Olesen // Change this to a register and set the reg#. 144d6397eba2389e8a24d37aa56e049187c1ee75f4fJakob Stoklund Olesen OpKind = MO_Register; 145d6397eba2389e8a24d37aa56e049187c1ee75f4fJakob Stoklund Olesen SmallContents.RegNo = Reg; 146d6397eba2389e8a24d37aa56e049187c1ee75f4fJakob Stoklund Olesen SubReg = 0; 14762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner IsDef = isDef; 14862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner IsImp = isImp; 14962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner IsKill = isKill; 15062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner IsDead = isDead; 1514784f1fc73abf6005b7b7262d395af71b57b1255Evan Cheng IsUndef = isUndef; 1522068215e8515203ab4839ee494cdc53dfd0cdf02Jakob Stoklund Olesen IsInternalRead = false; 153e009180f2bbcf5edbe3b583936c37c4b3be2d082Dale Johannesen IsEarlyClobber = false; 1549653f9ec970147a12216d787078eab2f8b9c122aDale Johannesen IsDebug = isDebug; 155d6397eba2389e8a24d37aa56e049187c1ee75f4fJakob Stoklund Olesen // Ensure isOnRegUseList() returns false. 156d6397eba2389e8a24d37aa56e049187c1ee75f4fJakob Stoklund Olesen Contents.Reg.Prev = 0; 1579c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen // Preserve the tie when the operand was already a register. 158699ac049517285d978ed607b2735976c5ae97ac0Jakob Stoklund Olesen if (!WasReg) 1599c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen TiedTo = 0; 160d6397eba2389e8a24d37aa56e049187c1ee75f4fJakob Stoklund Olesen 161d6397eba2389e8a24d37aa56e049187c1ee75f4fJakob Stoklund Olesen // If this operand is embedded in a function, add the operand to the 162d6397eba2389e8a24d37aa56e049187c1ee75f4fJakob Stoklund Olesen // register's use/def list. 163d6397eba2389e8a24d37aa56e049187c1ee75f4fJakob Stoklund Olesen if (RegInfo) 164d6397eba2389e8a24d37aa56e049187c1ee75f4fJakob Stoklund Olesen RegInfo->addRegOperandToUseList(this); 16562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner} 16662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 167f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner/// isIdenticalTo - Return true if this operand is identical to the specified 168d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth/// operand. Note that this should stay in sync with the hash_value overload 169d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth/// below. 170f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattnerbool MachineOperand::isIdenticalTo(const MachineOperand &Other) const { 17131530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner if (getType() != Other.getType() || 17231530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner getTargetFlags() != Other.getTargetFlags()) 17331530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner return false; 174ee61d67c2f1105e23b2ea5110389f3b7b713b504Jim Grosbach 175f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner switch (getType()) { 176f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_Register: 177f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner return getReg() == Other.getReg() && isDef() == Other.isDef() && 178f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner getSubReg() == Other.getSubReg(); 179f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_Immediate: 180f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner return getImm() == Other.getImm(); 181c20fb63ebdbc8caec4566eaa7bc5be7f0a14cca1Cameron Zwarich case MachineOperand::MO_CImmediate: 182c20fb63ebdbc8caec4566eaa7bc5be7f0a14cca1Cameron Zwarich return getCImm() == Other.getCImm(); 183e8b7ccf0c9a06831266d690d0b10ead71e0a4ac5Nate Begeman case MachineOperand::MO_FPImmediate: 184e8b7ccf0c9a06831266d690d0b10ead71e0a4ac5Nate Begeman return getFPImm() == Other.getFPImm(); 185f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_MachineBasicBlock: 186f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner return getMBB() == Other.getMBB(); 187f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_FrameIndex: 1888aa797aa51cd4ea1ec6f46f4891a6897944b75b2Chris Lattner return getIndex() == Other.getIndex(); 189f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_ConstantPoolIndex: 1900b40d09ff6b1facd0fe81e50ee0271e035488520Jakob Stoklund Olesen case MachineOperand::MO_TargetIndex: 1918aa797aa51cd4ea1ec6f46f4891a6897944b75b2Chris Lattner return getIndex() == Other.getIndex() && getOffset() == Other.getOffset(); 192f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_JumpTableIndex: 1938aa797aa51cd4ea1ec6f46f4891a6897944b75b2Chris Lattner return getIndex() == Other.getIndex(); 194f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_GlobalAddress: 195f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner return getGlobal() == Other.getGlobal() && getOffset() == Other.getOffset(); 196f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_ExternalSymbol: 197f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner return !strcmp(getSymbolName(), Other.getSymbolName()) && 198f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner getOffset() == Other.getOffset(); 1998c2b52552c90f39e4b2fed43e309e599e742b6acDan Gohman case MachineOperand::MO_BlockAddress: 2006c7ccaa3fd1d6e96d0bf922554b09d2b17c3b0e3Michael Liao return getBlockAddress() == Other.getBlockAddress() && 2016c7ccaa3fd1d6e96d0bf922554b09d2b17c3b0e3Michael Liao getOffset() == Other.getOffset(); 2027739cad69d2590f556afc9fc3048f967b5a3f4f6Jakob Stoklund Olesen case MO_RegisterMask: 2037739cad69d2590f556afc9fc3048f967b5a3f4f6Jakob Stoklund Olesen return getRegMask() == Other.getRegMask(); 20472aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner case MachineOperand::MO_MCSymbol: 20572aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner return getMCSymbol() == Other.getMCSymbol(); 20624ad3ed71fe93059d1b46ffdbfe63259762bf547Chris Lattner case MachineOperand::MO_Metadata: 20724ad3ed71fe93059d1b46ffdbfe63259762bf547Chris Lattner return getMetadata() == Other.getMetadata(); 208f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner } 209732f05c41f177a0bc4d47e93a5d02120f146cb4cChandler Carruth llvm_unreachable("Invalid machine operand type"); 210f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner} 211f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner 212d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth// Note: this must stay exactly in sync with isIdenticalTo above. 213d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruthhash_code llvm::hash_value(const MachineOperand &MO) { 214d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth switch (MO.getType()) { 215d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth case MachineOperand::MO_Register: 216190e342cbcb1456ebb21b53a35cfefa99435bd65Jakob Stoklund Olesen // Register operands don't have target flags. 217190e342cbcb1456ebb21b53a35cfefa99435bd65Jakob Stoklund Olesen return hash_combine(MO.getType(), MO.getReg(), MO.getSubReg(), MO.isDef()); 218d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth case MachineOperand::MO_Immediate: 219d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth return hash_combine(MO.getType(), MO.getTargetFlags(), MO.getImm()); 220d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth case MachineOperand::MO_CImmediate: 221d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth return hash_combine(MO.getType(), MO.getTargetFlags(), MO.getCImm()); 222d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth case MachineOperand::MO_FPImmediate: 223d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth return hash_combine(MO.getType(), MO.getTargetFlags(), MO.getFPImm()); 224d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth case MachineOperand::MO_MachineBasicBlock: 225d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth return hash_combine(MO.getType(), MO.getTargetFlags(), MO.getMBB()); 226d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth case MachineOperand::MO_FrameIndex: 227d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth return hash_combine(MO.getType(), MO.getTargetFlags(), MO.getIndex()); 228d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth case MachineOperand::MO_ConstantPoolIndex: 2290b40d09ff6b1facd0fe81e50ee0271e035488520Jakob Stoklund Olesen case MachineOperand::MO_TargetIndex: 230d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth return hash_combine(MO.getType(), MO.getTargetFlags(), MO.getIndex(), 231d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth MO.getOffset()); 232d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth case MachineOperand::MO_JumpTableIndex: 233d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth return hash_combine(MO.getType(), MO.getTargetFlags(), MO.getIndex()); 234d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth case MachineOperand::MO_ExternalSymbol: 235d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth return hash_combine(MO.getType(), MO.getTargetFlags(), MO.getOffset(), 236d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth MO.getSymbolName()); 237d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth case MachineOperand::MO_GlobalAddress: 238d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth return hash_combine(MO.getType(), MO.getTargetFlags(), MO.getGlobal(), 239d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth MO.getOffset()); 240d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth case MachineOperand::MO_BlockAddress: 241d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth return hash_combine(MO.getType(), MO.getTargetFlags(), 2426c7ccaa3fd1d6e96d0bf922554b09d2b17c3b0e3Michael Liao MO.getBlockAddress(), MO.getOffset()); 243d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth case MachineOperand::MO_RegisterMask: 244d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth return hash_combine(MO.getType(), MO.getTargetFlags(), MO.getRegMask()); 245d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth case MachineOperand::MO_Metadata: 246d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth return hash_combine(MO.getType(), MO.getTargetFlags(), MO.getMetadata()); 247d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth case MachineOperand::MO_MCSymbol: 248d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth return hash_combine(MO.getType(), MO.getTargetFlags(), MO.getMCSymbol()); 249d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth } 250d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth llvm_unreachable("Invalid machine operand type"); 251d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth} 252d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth 253f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner/// print - Print the specified machine operand. 254f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner/// 2555ca6bd14a00ba5310ce1a632d3a0cc8f8af31433Mon P Wangvoid MachineOperand::print(raw_ostream &OS, const TargetMachine *TM) const { 25680f6c5898113806130975fd56d24929b06bf54f8Dan Gohman // If the instruction is embedded into a basic block, we can find the 25780f6c5898113806130975fd56d24929b06bf54f8Dan Gohman // target info for the instruction. 25880f6c5898113806130975fd56d24929b06bf54f8Dan Gohman if (!TM) 25980f6c5898113806130975fd56d24929b06bf54f8Dan Gohman if (const MachineInstr *MI = getParent()) 26080f6c5898113806130975fd56d24929b06bf54f8Dan Gohman if (const MachineBasicBlock *MBB = MI->getParent()) 26180f6c5898113806130975fd56d24929b06bf54f8Dan Gohman if (const MachineFunction *MF = MBB->getParent()) 26280f6c5898113806130975fd56d24929b06bf54f8Dan Gohman TM = &MF->getTarget(); 2634314268128be6d54c9a7f0709680e5a5b40f3ab3Jakob Stoklund Olesen const TargetRegisterInfo *TRI = TM ? TM->getRegisterInfo() : 0; 26480f6c5898113806130975fd56d24929b06bf54f8Dan Gohman 265f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner switch (getType()) { 266f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_Register: 2674314268128be6d54c9a7f0709680e5a5b40f3ab3Jakob Stoklund Olesen OS << PrintReg(getReg(), TRI, getSubReg()); 2682ccc83966914593d98af5671ce10a3bf2dcf7513Dan Gohman 2694784f1fc73abf6005b7b7262d395af71b57b1255Evan Cheng if (isDef() || isKill() || isDead() || isImplicit() || isUndef() || 2704ba6916a98fffd9dedac5945ac51d40c8948069eJakob Stoklund Olesen isInternalRead() || isEarlyClobber() || isTied()) { 27131530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner OS << '<'; 272f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner bool NeedComma = false; 2730789707c49135bba69e0e308d0fbc41bb7cbe78aEvan Cheng if (isDef()) { 27431530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner if (NeedComma) OS << ','; 275913d3dfac43f29921467f33aa743f28ee1bfc5d1Dale Johannesen if (isEarlyClobber()) 276913d3dfac43f29921467f33aa743f28ee1bfc5d1Dale Johannesen OS << "earlyclobber,"; 2770789707c49135bba69e0e308d0fbc41bb7cbe78aEvan Cheng if (isImplicit()) 2780789707c49135bba69e0e308d0fbc41bb7cbe78aEvan Cheng OS << "imp-"; 279f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner OS << "def"; 280f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner NeedComma = true; 2813429c7571e87ca6070ceb1b44b1f367ce23c99f9Jakob Stoklund Olesen // <def,read-undef> only makes sense when getSubReg() is set. 2823429c7571e87ca6070ceb1b44b1f367ce23c99f9Jakob Stoklund Olesen // Don't clutter the output otherwise. 2833429c7571e87ca6070ceb1b44b1f367ce23c99f9Jakob Stoklund Olesen if (isUndef() && getSubReg()) 2843429c7571e87ca6070ceb1b44b1f367ce23c99f9Jakob Stoklund Olesen OS << ",read-undef"; 2855affca0763836e15ca15e78ed3a0fd56ef6b2e92Evan Cheng } else if (isImplicit()) { 2860789707c49135bba69e0e308d0fbc41bb7cbe78aEvan Cheng OS << "imp-use"; 2875affca0763836e15ca15e78ed3a0fd56ef6b2e92Evan Cheng NeedComma = true; 2885affca0763836e15ca15e78ed3a0fd56ef6b2e92Evan Cheng } 2890789707c49135bba69e0e308d0fbc41bb7cbe78aEvan Cheng 2904ba6916a98fffd9dedac5945ac51d40c8948069eJakob Stoklund Olesen if (isKill()) { 29131530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner if (NeedComma) OS << ','; 2924ba6916a98fffd9dedac5945ac51d40c8948069eJakob Stoklund Olesen OS << "kill"; 2934ba6916a98fffd9dedac5945ac51d40c8948069eJakob Stoklund Olesen NeedComma = true; 2944ba6916a98fffd9dedac5945ac51d40c8948069eJakob Stoklund Olesen } 2954ba6916a98fffd9dedac5945ac51d40c8948069eJakob Stoklund Olesen if (isDead()) { 2964ba6916a98fffd9dedac5945ac51d40c8948069eJakob Stoklund Olesen if (NeedComma) OS << ','; 2974ba6916a98fffd9dedac5945ac51d40c8948069eJakob Stoklund Olesen OS << "dead"; 2984ba6916a98fffd9dedac5945ac51d40c8948069eJakob Stoklund Olesen NeedComma = true; 2994ba6916a98fffd9dedac5945ac51d40c8948069eJakob Stoklund Olesen } 3004ba6916a98fffd9dedac5945ac51d40c8948069eJakob Stoklund Olesen if (isUndef() && isUse()) { 3014ba6916a98fffd9dedac5945ac51d40c8948069eJakob Stoklund Olesen if (NeedComma) OS << ','; 3024ba6916a98fffd9dedac5945ac51d40c8948069eJakob Stoklund Olesen OS << "undef"; 3034ba6916a98fffd9dedac5945ac51d40c8948069eJakob Stoklund Olesen NeedComma = true; 3044ba6916a98fffd9dedac5945ac51d40c8948069eJakob Stoklund Olesen } 3054ba6916a98fffd9dedac5945ac51d40c8948069eJakob Stoklund Olesen if (isInternalRead()) { 3064ba6916a98fffd9dedac5945ac51d40c8948069eJakob Stoklund Olesen if (NeedComma) OS << ','; 3074ba6916a98fffd9dedac5945ac51d40c8948069eJakob Stoklund Olesen OS << "internal"; 3084ba6916a98fffd9dedac5945ac51d40c8948069eJakob Stoklund Olesen NeedComma = true; 3094ba6916a98fffd9dedac5945ac51d40c8948069eJakob Stoklund Olesen } 3104ba6916a98fffd9dedac5945ac51d40c8948069eJakob Stoklund Olesen if (isTied()) { 3114ba6916a98fffd9dedac5945ac51d40c8948069eJakob Stoklund Olesen if (NeedComma) OS << ','; 3124ba6916a98fffd9dedac5945ac51d40c8948069eJakob Stoklund Olesen OS << "tied"; 3139c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen if (TiedTo != 15) 3149c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen OS << unsigned(TiedTo - 1); 3154ba6916a98fffd9dedac5945ac51d40c8948069eJakob Stoklund Olesen NeedComma = true; 316f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner } 31731530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner OS << '>'; 318f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner } 319f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner break; 320f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_Immediate: 321f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner OS << getImm(); 322f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner break; 3238594d429e02c688d428036f8563f09572da3fbffDevang Patel case MachineOperand::MO_CImmediate: 3248594d429e02c688d428036f8563f09572da3fbffDevang Patel getCImm()->getValue().print(OS, false); 3258594d429e02c688d428036f8563f09572da3fbffDevang Patel break; 326e8b7ccf0c9a06831266d690d0b10ead71e0a4ac5Nate Begeman case MachineOperand::MO_FPImmediate: 327cf0fe8d813727383d630055bb9d1cde21b00b7e7Chris Lattner if (getFPImm()->getType()->isFloatTy()) 328e8b7ccf0c9a06831266d690d0b10ead71e0a4ac5Nate Begeman OS << getFPImm()->getValueAPF().convertToFloat(); 32931530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner else 330e8b7ccf0c9a06831266d690d0b10ead71e0a4ac5Nate Begeman OS << getFPImm()->getValueAPF().convertToDouble(); 331e8b7ccf0c9a06831266d690d0b10ead71e0a4ac5Nate Begeman break; 332f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_MachineBasicBlock: 3330ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman OS << "<BB#" << getMBB()->getNumber() << ">"; 334f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner break; 335f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_FrameIndex: 33631530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner OS << "<fi#" << getIndex() << '>'; 337f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner break; 338f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_ConstantPoolIndex: 3398aa797aa51cd4ea1ec6f46f4891a6897944b75b2Chris Lattner OS << "<cp#" << getIndex(); 340f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner if (getOffset()) OS << "+" << getOffset(); 34131530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner OS << '>'; 342f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner break; 3430b40d09ff6b1facd0fe81e50ee0271e035488520Jakob Stoklund Olesen case MachineOperand::MO_TargetIndex: 3440b40d09ff6b1facd0fe81e50ee0271e035488520Jakob Stoklund Olesen OS << "<ti#" << getIndex(); 3450b40d09ff6b1facd0fe81e50ee0271e035488520Jakob Stoklund Olesen if (getOffset()) OS << "+" << getOffset(); 3460b40d09ff6b1facd0fe81e50ee0271e035488520Jakob Stoklund Olesen OS << '>'; 3470b40d09ff6b1facd0fe81e50ee0271e035488520Jakob Stoklund Olesen break; 348f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_JumpTableIndex: 34931530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner OS << "<jt#" << getIndex() << '>'; 350f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner break; 351f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_GlobalAddress: 3528d4e3b5b48b245ed65259270a53fcaf0bf91d9f7Dan Gohman OS << "<ga:"; 3538d4e3b5b48b245ed65259270a53fcaf0bf91d9f7Dan Gohman WriteAsOperand(OS, getGlobal(), /*PrintType=*/false); 354f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner if (getOffset()) OS << "+" << getOffset(); 35531530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner OS << '>'; 356f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner break; 357f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_ExternalSymbol: 358f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner OS << "<es:" << getSymbolName(); 359f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner if (getOffset()) OS << "+" << getOffset(); 36031530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner OS << '>'; 361f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner break; 3628c2b52552c90f39e4b2fed43e309e599e742b6acDan Gohman case MachineOperand::MO_BlockAddress: 3635f72a5ebc84a1935878b5b2d3166a505c520cdfcDale Johannesen OS << '<'; 3640ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman WriteAsOperand(OS, getBlockAddress(), /*PrintType=*/false); 3656c7ccaa3fd1d6e96d0bf922554b09d2b17c3b0e3Michael Liao if (getOffset()) OS << "+" << getOffset(); 3668c2b52552c90f39e4b2fed43e309e599e742b6acDan Gohman OS << '>'; 3678c2b52552c90f39e4b2fed43e309e599e742b6acDan Gohman break; 3687739cad69d2590f556afc9fc3048f967b5a3f4f6Jakob Stoklund Olesen case MachineOperand::MO_RegisterMask: 369478a8a02bc0f2e739ed8f4240152e99837e480b9Jakob Stoklund Olesen OS << "<regmask>"; 3707739cad69d2590f556afc9fc3048f967b5a3f4f6Jakob Stoklund Olesen break; 3715f72a5ebc84a1935878b5b2d3166a505c520cdfcDale Johannesen case MachineOperand::MO_Metadata: 3725f72a5ebc84a1935878b5b2d3166a505c520cdfcDale Johannesen OS << '<'; 3735f72a5ebc84a1935878b5b2d3166a505c520cdfcDale Johannesen WriteAsOperand(OS, getMetadata(), /*PrintType=*/false); 3745f72a5ebc84a1935878b5b2d3166a505c520cdfcDale Johannesen OS << '>'; 3755f72a5ebc84a1935878b5b2d3166a505c520cdfcDale Johannesen break; 37672aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner case MachineOperand::MO_MCSymbol: 37772aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner OS << "<MCSym=" << *getMCSymbol() << '>'; 37872aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner break; 379f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner } 380ee61d67c2f1105e23b2ea5110389f3b7b713b504Jim Grosbach 38131530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner if (unsigned TF = getTargetFlags()) 38231530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner OS << "[TF=" << TF << ']'; 383f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner} 384f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner 385f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner//===----------------------------------------------------------------------===// 386ce42e404a26454f4332c2c350c75ad27bbbb16f7Dan Gohman// MachineMemOperand Implementation 387ce42e404a26454f4332c2c350c75ad27bbbb16f7Dan Gohman//===----------------------------------------------------------------------===// 388ce42e404a26454f4332c2c350c75ad27bbbb16f7Dan Gohman 38940a858f6e71ed8d68779d00c63dad15baded3562Chris Lattner/// getAddrSpace - Return the LLVM IR address space number that this pointer 39040a858f6e71ed8d68779d00c63dad15baded3562Chris Lattner/// points into. 39140a858f6e71ed8d68779d00c63dad15baded3562Chris Lattnerunsigned MachinePointerInfo::getAddrSpace() const { 39240a858f6e71ed8d68779d00c63dad15baded3562Chris Lattner if (V == 0) return 0; 39340a858f6e71ed8d68779d00c63dad15baded3562Chris Lattner return cast<PointerType>(V->getType())->getAddressSpace(); 39440a858f6e71ed8d68779d00c63dad15baded3562Chris Lattner} 39540a858f6e71ed8d68779d00c63dad15baded3562Chris Lattner 396e8639036b1fb3a5b5e9589fe4e9f2ee1b77c36bdChris Lattner/// getConstantPool - Return a MachinePointerInfo record that refers to the 397e8639036b1fb3a5b5e9589fe4e9f2ee1b77c36bdChris Lattner/// constant pool. 398e8639036b1fb3a5b5e9589fe4e9f2ee1b77c36bdChris LattnerMachinePointerInfo MachinePointerInfo::getConstantPool() { 399e8639036b1fb3a5b5e9589fe4e9f2ee1b77c36bdChris Lattner return MachinePointerInfo(PseudoSourceValue::getConstantPool()); 400e8639036b1fb3a5b5e9589fe4e9f2ee1b77c36bdChris Lattner} 401e8639036b1fb3a5b5e9589fe4e9f2ee1b77c36bdChris Lattner 402e8639036b1fb3a5b5e9589fe4e9f2ee1b77c36bdChris Lattner/// getFixedStack - Return a MachinePointerInfo record that refers to the 403e8639036b1fb3a5b5e9589fe4e9f2ee1b77c36bdChris Lattner/// the specified FrameIndex. 404e8639036b1fb3a5b5e9589fe4e9f2ee1b77c36bdChris LattnerMachinePointerInfo MachinePointerInfo::getFixedStack(int FI, int64_t offset) { 405e8639036b1fb3a5b5e9589fe4e9f2ee1b77c36bdChris Lattner return MachinePointerInfo(PseudoSourceValue::getFixedStack(FI), offset); 406e8639036b1fb3a5b5e9589fe4e9f2ee1b77c36bdChris Lattner} 407e8639036b1fb3a5b5e9589fe4e9f2ee1b77c36bdChris Lattner 4081daa6f479dd5fb4123f1ffbb10a3825da7d2c6b8Chris LattnerMachinePointerInfo MachinePointerInfo::getJumpTable() { 4091daa6f479dd5fb4123f1ffbb10a3825da7d2c6b8Chris Lattner return MachinePointerInfo(PseudoSourceValue::getJumpTable()); 4101daa6f479dd5fb4123f1ffbb10a3825da7d2c6b8Chris Lattner} 4111daa6f479dd5fb4123f1ffbb10a3825da7d2c6b8Chris Lattner 4121daa6f479dd5fb4123f1ffbb10a3825da7d2c6b8Chris LattnerMachinePointerInfo MachinePointerInfo::getGOT() { 4131daa6f479dd5fb4123f1ffbb10a3825da7d2c6b8Chris Lattner return MachinePointerInfo(PseudoSourceValue::getGOT()); 4141daa6f479dd5fb4123f1ffbb10a3825da7d2c6b8Chris Lattner} 41540a858f6e71ed8d68779d00c63dad15baded3562Chris Lattner 416fc448ff89b4fb7721de9da0b96fd00c13160c4c7Chris LattnerMachinePointerInfo MachinePointerInfo::getStack(int64_t Offset) { 417fc448ff89b4fb7721de9da0b96fd00c13160c4c7Chris Lattner return MachinePointerInfo(PseudoSourceValue::getStack(), Offset); 418fc448ff89b4fb7721de9da0b96fd00c13160c4c7Chris Lattner} 419fc448ff89b4fb7721de9da0b96fd00c13160c4c7Chris Lattner 420da39c3964423744b4d79aebef8bece3e9141d5fcChris LattnerMachineMemOperand::MachineMemOperand(MachinePointerInfo ptrinfo, unsigned f, 421f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman uint64_t s, unsigned int a, 42295d594cac3737ae1594a391276942a443cac426bRafael Espindola const MDNode *TBAAInfo, 42395d594cac3737ae1594a391276942a443cac426bRafael Espindola const MDNode *Ranges) 424da39c3964423744b4d79aebef8bece3e9141d5fcChris Lattner : PtrInfo(ptrinfo), Size(s), 425f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman Flags((f & ((1 << MOMaxBits) - 1)) | ((Log2_32(a) + 1) << MOMaxBits)), 42695d594cac3737ae1594a391276942a443cac426bRafael Espindola TBAAInfo(TBAAInfo), Ranges(Ranges) { 427da39c3964423744b4d79aebef8bece3e9141d5fcChris Lattner assert((PtrInfo.V == 0 || isa<PointerType>(PtrInfo.V->getType())) && 428da39c3964423744b4d79aebef8bece3e9141d5fcChris Lattner "invalid pointer value"); 42928f02fdd76f4efc05d14649e0eec90ce8e71e17eDan Gohman assert(getBaseAlignment() == a && "Alignment is not a power of 2!"); 430c5e1f98fdf44993c2bfe4c1ef633b2358cd718c1Dan Gohman assert((isLoad() || isStore()) && "Not a load/store!"); 431ce42e404a26454f4332c2c350c75ad27bbbb16f7Dan Gohman} 432ce42e404a26454f4332c2c350c75ad27bbbb16f7Dan Gohman 433b8d2f550b84523e8a73198f98e5d450ec3b4fee7Dan Gohman/// Profile - Gather unique data for the object. 434b8d2f550b84523e8a73198f98e5d450ec3b4fee7Dan Gohman/// 435b8d2f550b84523e8a73198f98e5d450ec3b4fee7Dan Gohmanvoid MachineMemOperand::Profile(FoldingSetNodeID &ID) const { 436e8e2e80f40495fdd5ad475beb54fcf0989b6b7c5Chris Lattner ID.AddInteger(getOffset()); 437b8d2f550b84523e8a73198f98e5d450ec3b4fee7Dan Gohman ID.AddInteger(Size); 438e8e2e80f40495fdd5ad475beb54fcf0989b6b7c5Chris Lattner ID.AddPointer(getValue()); 439b8d2f550b84523e8a73198f98e5d450ec3b4fee7Dan Gohman ID.AddInteger(Flags); 440b8d2f550b84523e8a73198f98e5d450ec3b4fee7Dan Gohman} 441b8d2f550b84523e8a73198f98e5d450ec3b4fee7Dan Gohman 442c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohmanvoid MachineMemOperand::refineAlignment(const MachineMemOperand *MMO) { 443c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman // The Value and Offset may differ due to CSE. But the flags and size 444c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman // should be the same. 445c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman assert(MMO->getFlags() == getFlags() && "Flags mismatch!"); 446c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman assert(MMO->getSize() == getSize() && "Size mismatch!"); 447c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman 448c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman if (MMO->getBaseAlignment() >= getBaseAlignment()) { 449c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman // Update the alignment value. 450ba2b297ca53cd685ba397177e9d2d8c239da971eDavid Greene Flags = (Flags & ((1 << MOMaxBits) - 1)) | 451ba2b297ca53cd685ba397177e9d2d8c239da971eDavid Greene ((Log2_32(MMO->getBaseAlignment()) + 1) << MOMaxBits); 452c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman // Also update the base and offset, because the new alignment may 453c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman // not be applicable with the old ones. 454e8e2e80f40495fdd5ad475beb54fcf0989b6b7c5Chris Lattner PtrInfo = MMO->PtrInfo; 455c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman } 456c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman} 457c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman 4584b2ebc19288491cb068f268c311d9fef0ec6a29fDan Gohman/// getAlignment - Return the minimum known alignment in bytes of the 4594b2ebc19288491cb068f268c311d9fef0ec6a29fDan Gohman/// actual memory reference. 4604b2ebc19288491cb068f268c311d9fef0ec6a29fDan Gohmanuint64_t MachineMemOperand::getAlignment() const { 4614b2ebc19288491cb068f268c311d9fef0ec6a29fDan Gohman return MinAlign(getBaseAlignment(), getOffset()); 4624b2ebc19288491cb068f268c311d9fef0ec6a29fDan Gohman} 4634b2ebc19288491cb068f268c311d9fef0ec6a29fDan Gohman 464c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohmanraw_ostream &llvm::operator<<(raw_ostream &OS, const MachineMemOperand &MMO) { 465c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman assert((MMO.isLoad() || MMO.isStore()) && 466cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman "SV has to be a load, store or both."); 467ee61d67c2f1105e23b2ea5110389f3b7b713b504Jim Grosbach 468c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman if (MMO.isVolatile()) 469cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman OS << "Volatile "; 470cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman 471c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman if (MMO.isLoad()) 472cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman OS << "LD"; 473c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman if (MMO.isStore()) 474cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman OS << "ST"; 475c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman OS << MMO.getSize(); 476ee61d67c2f1105e23b2ea5110389f3b7b713b504Jim Grosbach 477cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman // Print the address information. 478cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman OS << "["; 479c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman if (!MMO.getValue()) 480cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman OS << "<unknown>"; 481cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman else 482c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman WriteAsOperand(OS, MMO.getValue(), /*PrintType=*/false); 483cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman 484cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman // If the alignment of the memory reference itself differs from the alignment 485cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman // of the base pointer, print the base alignment explicitly, next to the base 486cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman // pointer. 487c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman if (MMO.getBaseAlignment() != MMO.getAlignment()) 488c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman OS << "(align=" << MMO.getBaseAlignment() << ")"; 489cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman 490c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman if (MMO.getOffset() != 0) 491c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman OS << "+" << MMO.getOffset(); 492cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman OS << "]"; 493cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman 494cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman // Print the alignment of the reference. 495c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman if (MMO.getBaseAlignment() != MMO.getAlignment() || 496c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman MMO.getBaseAlignment() != MMO.getSize()) 497c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman OS << "(align=" << MMO.getAlignment() << ")"; 498cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman 499f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman // Print TBAA info. 500f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman if (const MDNode *TBAAInfo = MMO.getTBAAInfo()) { 501f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman OS << "(tbaa="; 502f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman if (TBAAInfo->getNumOperands() > 0) 503f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman WriteAsOperand(OS, TBAAInfo->getOperand(0), /*PrintType=*/false); 504f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman else 505f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman OS << "<unknown>"; 506f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman OS << ")"; 507f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman } 508f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman 509d65ba721cccb0d0998750908bf2533e08b106f38Bill Wendling // Print nontemporal info. 510d65ba721cccb0d0998750908bf2533e08b106f38Bill Wendling if (MMO.isNonTemporal()) 511d65ba721cccb0d0998750908bf2533e08b106f38Bill Wendling OS << "(nontemporal)"; 512d65ba721cccb0d0998750908bf2533e08b106f38Bill Wendling 513cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman return OS; 514cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman} 515cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman 516ce42e404a26454f4332c2c350c75ad27bbbb16f7Dan Gohman//===----------------------------------------------------------------------===// 517f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner// MachineInstr Implementation 518f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner//===----------------------------------------------------------------------===// 519f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner 5209500e5d07ac9b94c8fed74150e444778a0dcb036Jakob Stoklund Olesenvoid MachineInstr::addImplicitDefUseOperands(MachineFunction &MF) { 521e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng if (MCID->ImplicitDefs) 522fac259814923d091942b230e7bd002a8d1130bc3Craig Topper for (const uint16_t *ImpDefs = MCID->getImplicitDefs(); *ImpDefs; ++ImpDefs) 5239500e5d07ac9b94c8fed74150e444778a0dcb036Jakob Stoklund Olesen addOperand(MF, MachineOperand::CreateReg(*ImpDefs, true, true)); 524e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng if (MCID->ImplicitUses) 525fac259814923d091942b230e7bd002a8d1130bc3Craig Topper for (const uint16_t *ImpUses = MCID->getImplicitUses(); *ImpUses; ++ImpUses) 5269500e5d07ac9b94c8fed74150e444778a0dcb036Jakob Stoklund Olesen addOperand(MF, MachineOperand::CreateReg(*ImpUses, false, true)); 527d7de496b23fca8145f777a56281457bf64e8bbadEvan Cheng} 528d7de496b23fca8145f777a56281457bf64e8bbadEvan Cheng 5290855cadb00c598d4e78c8f1842a9c1b9bf19c667Bob Wilson/// MachineInstr ctor - This constructor creates a MachineInstr and adds the 5300855cadb00c598d4e78c8f1842a9c1b9bf19c667Bob Wilson/// implicit operands. It reserves space for the number of operands specified by 531e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng/// the MCInstrDesc. 5329500e5d07ac9b94c8fed74150e444778a0dcb036Jakob Stoklund OlesenMachineInstr::MachineInstr(MachineFunction &MF, const MCInstrDesc &tid, 5339500e5d07ac9b94c8fed74150e444778a0dcb036Jakob Stoklund Olesen const DebugLoc dl, bool NoImp) 534f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen : MCID(&tid), Parent(0), Operands(0), NumOperands(0), 535f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen Flags(0), AsmPrinterFlags(0), 536f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen NumMemRefs(0), MemRefs(0), debugLoc(dl) { 537f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen // Reserve space for the expected number of operands. 538f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen if (unsigned NumOps = MCID->getNumOperands() + 539f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen MCID->getNumImplicitDefs() + MCID->getNumImplicitUses()) { 540f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen CapOperands = OperandCapacity::get(NumOps); 541f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen Operands = MF.allocateOperandArray(CapOperands); 542f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen } 543f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen 54406efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen if (!NoImp) 5459500e5d07ac9b94c8fed74150e444778a0dcb036Jakob Stoklund Olesen addImplicitDefUseOperands(MF); 54606efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen} 54706efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen 548ce22e76996d3ff0930716fa60c29df60a7e0481bMisha Brukman/// MachineInstr ctor - Copies MachineInstr arg exactly 549ce22e76996d3ff0930716fa60c29df60a7e0481bMisha Brukman/// 5501ed9922794cda9dbe295e74674b909287e544632Evan ChengMachineInstr::MachineInstr(MachineFunction &MF, const MachineInstr &MI) 551f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen : MCID(&MI.getDesc()), Parent(0), Operands(0), NumOperands(0), 552f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen Flags(0), AsmPrinterFlags(0), 553861ea230a7841fe4ccc8a1cd5460354e59aeed3cBenjamin Kramer NumMemRefs(MI.NumMemRefs), MemRefs(MI.MemRefs), 554f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen debugLoc(MI.getDebugLoc()) { 555f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen CapOperands = OperandCapacity::get(MI.getNumOperands()); 556f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen Operands = MF.allocateOperandArray(CapOperands); 557b5159ed0cb7943e5938782f7693beb18342165ceTanya Lattner 55884be3d5a73313eb19f2f9e0512153cd2e6f46c54Jakob Stoklund Olesen // Copy operands. 5591ed9922794cda9dbe295e74674b909287e544632Evan Cheng for (unsigned i = 0; i != MI.getNumOperands(); ++i) 5609500e5d07ac9b94c8fed74150e444778a0dcb036Jakob Stoklund Olesen addOperand(MF, MI.getOperand(i)); 5610c63e03e04d3982e1913479bba404c3debc9a27eTanya Lattner 562bd7b36e780f99b808f8e334e26f3dae1bc7e8175Jakob Stoklund Olesen // Copy all the sensible flags. 563bd7b36e780f99b808f8e334e26f3dae1bc7e8175Jakob Stoklund Olesen setFlags(MI.Flags); 564aad5c0505183a5b7913f1a443a1f0650122551ccAlkis Evlogimenos} 565aad5c0505183a5b7913f1a443a1f0650122551ccAlkis Evlogimenos 56662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// getRegInfo - If this instruction is embedded into a MachineFunction, 56762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// return the MachineRegisterInfo object for the current function, otherwise 56862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// return null. 56962ed6b9ade63bf01717ce5274fa11e93e873d245Chris LattnerMachineRegisterInfo *MachineInstr::getRegInfo() { 57062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (MachineBasicBlock *MBB = getParent()) 5714e526b9a5b36d9bac170c03df0a5d6fb76740ae2Dan Gohman return &MBB->getParent()->getRegInfo(); 57262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner return 0; 57362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner} 57462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 57562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// RemoveRegOperandsFromUseLists - Unlink all of the register operands in 57662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// this instruction from their respective use lists. This requires that the 57762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// operands already be on their use lists. 578ff2b99afc8cbc6cfa73181072888e0f9f07deb7eJakob Stoklund Olesenvoid MachineInstr::RemoveRegOperandsFromUseLists(MachineRegisterInfo &MRI) { 579021e3b6444e9179751002db7b20de96455e03171Jakob Stoklund Olesen for (unsigned i = 0, e = getNumOperands(); i != e; ++i) 580d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (Operands[i].isReg()) 581ff2b99afc8cbc6cfa73181072888e0f9f07deb7eJakob Stoklund Olesen MRI.removeRegOperandFromUseList(&Operands[i]); 58262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner} 58362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 58462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// AddRegOperandsToUseLists - Add all of the register operands in 58562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// this instruction from their respective use lists. This requires that the 58662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// operands not be on their use lists yet. 587ff2b99afc8cbc6cfa73181072888e0f9f07deb7eJakob Stoklund Olesenvoid MachineInstr::AddRegOperandsToUseLists(MachineRegisterInfo &MRI) { 588021e3b6444e9179751002db7b20de96455e03171Jakob Stoklund Olesen for (unsigned i = 0, e = getNumOperands(); i != e; ++i) 589d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (Operands[i].isReg()) 590ff2b99afc8cbc6cfa73181072888e0f9f07deb7eJakob Stoklund Olesen MRI.addRegOperandToUseList(&Operands[i]); 59162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner} 59262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 59356706db45bbc7be0c087451ca9f1d258324df4b2Jakob Stoklund Olesenvoid MachineInstr::addOperand(const MachineOperand &Op) { 59456706db45bbc7be0c087451ca9f1d258324df4b2Jakob Stoklund Olesen MachineBasicBlock *MBB = getParent(); 59556706db45bbc7be0c087451ca9f1d258324df4b2Jakob Stoklund Olesen assert(MBB && "Use MachineInstrBuilder to add operands to dangling instrs"); 59656706db45bbc7be0c087451ca9f1d258324df4b2Jakob Stoklund Olesen MachineFunction *MF = MBB->getParent(); 59756706db45bbc7be0c087451ca9f1d258324df4b2Jakob Stoklund Olesen assert(MF && "Use MachineInstrBuilder to add operands to dangling instrs"); 59856706db45bbc7be0c087451ca9f1d258324df4b2Jakob Stoklund Olesen addOperand(*MF, Op); 59956706db45bbc7be0c087451ca9f1d258324df4b2Jakob Stoklund Olesen} 60056706db45bbc7be0c087451ca9f1d258324df4b2Jakob Stoklund Olesen 601f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen/// Move NumOps MachineOperands from Src to Dst, with support for overlapping 602f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen/// ranges. If MRI is non-null also update use-def chains. 603f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesenstatic void moveOperands(MachineOperand *Dst, MachineOperand *Src, 604f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen unsigned NumOps, MachineRegisterInfo *MRI) { 605f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen if (MRI) 606f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen return MRI->moveOperands(Dst, Src, NumOps); 607f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen 608f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen // Here it would be convenient to call memmove, so that isn't allowed because 609f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen // MachineOperand has a constructor and so isn't a POD type. 610f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen if (Dst < Src) 611f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen for (unsigned i = 0; i != NumOps; ++i) 612f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen new (Dst + i) MachineOperand(Src[i]); 613f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen else 614f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen for (unsigned i = NumOps; i ; --i) 615f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen new (Dst + i - 1) MachineOperand(Src[i - 1]); 616f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen} 617f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen 61862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// addOperand - Add the specified operand to the instruction. If it is an 61962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// implicit operand, it is added to the end of the operand list. If it is 62062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// an explicit operand it is added at the end of the explicit operand list 621ee61d67c2f1105e23b2ea5110389f3b7b713b504Jim Grosbach/// (before the first implicit operand). 62256706db45bbc7be0c087451ca9f1d258324df4b2Jakob Stoklund Olesenvoid MachineInstr::addOperand(MachineFunction &MF, const MachineOperand &Op) { 6233627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen assert(MCID && "Cannot add operands before providing an instr descriptor"); 624bcf28c08b3f0a3c4aa1be8f1485f6452d9a2b690Dan Gohman 625f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen // Check if we're adding one of our existing operands. 626f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen if (&Op >= Operands && &Op < Operands + NumOperands) { 627f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen // This is unusual: MI->addOperand(MI->getOperand(i)). 628f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen // If adding Op requires reallocating or moving existing operands around, 629f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen // the Op reference could go stale. Support it by copying Op. 630f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen MachineOperand CopyOp(Op); 631f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen return addOperand(MF, CopyOp); 632f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen } 6333627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen 6343627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen // Find the insert location for the new operand. Implicit registers go at 635f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen // the end, everything else goes before the implicit regs. 636f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen // 6373627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen // FIXME: Allow mixed explicit and implicit operands on inline asm. 6383627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen // InstrEmitter::EmitSpecialNode() is marking inline asm clobbers as 6393627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen // implicit-defs, but they must not be moved around. See the FIXME in 6403627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen // InstrEmitter.cpp. 641f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen unsigned OpNo = getNumOperands(); 642f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen bool isImpReg = Op.isReg() && Op.isImplicit(); 6433627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen if (!isImpReg && !isInlineAsm()) { 6443627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen while (OpNo && Operands[OpNo-1].isReg() && Operands[OpNo-1].isImplicit()) { 6453627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen --OpNo; 6469c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen assert(!Operands[OpNo].isTied() && "Cannot move tied operands"); 64762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 64862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 649ee61d67c2f1105e23b2ea5110389f3b7b713b504Jim Grosbach 6503627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen // OpNo now points as the desired insertion point. Unless this is a variadic 6513627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen // instruction, only implicit regs are allowed beyond MCID->getNumOperands(). 65233a537a5c41e60507ac9a4ea987c1a395cbb74feJakob Stoklund Olesen // RegMask operands go between the explicit and implicit operands. 65333a537a5c41e60507ac9a4ea987c1a395cbb74feJakob Stoklund Olesen assert((isImpReg || Op.isRegMask() || MCID->isVariadic() || 65433a537a5c41e60507ac9a4ea987c1a395cbb74feJakob Stoklund Olesen OpNo < MCID->getNumOperands()) && 6553627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen "Trying to add an operand to a machine instr that is already done!"); 65662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 657f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen MachineRegisterInfo *MRI = getRegInfo(); 658f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen 659f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen // Determine if the Operands array needs to be reallocated. 660f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen // Save the old capacity and operand array. 661f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen OperandCapacity OldCap = CapOperands; 662f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen MachineOperand *OldOperands = Operands; 663f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen if (!OldOperands || OldCap.getSize() == getNumOperands()) { 664f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen CapOperands = OldOperands ? OldCap.getNext() : OldCap.get(1); 665f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen Operands = MF.allocateOperandArray(CapOperands); 666f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen // Move the operands before the insertion point. 667f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen if (OpNo) 668f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen moveOperands(Operands, OldOperands, OpNo, MRI); 669f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen } 670f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen 671f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen // Move the operands following the insertion point. 672f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen if (OpNo != NumOperands) 673f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen moveOperands(Operands + OpNo + 1, OldOperands + OpNo, NumOperands - OpNo, 674f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen MRI); 675f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen ++NumOperands; 676f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen 677f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen // Deallocate the old operand array. 678f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen if (OldOperands != Operands && OldOperands) 679f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen MF.deallocateOperandArray(OldCap, OldOperands); 680f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen 681f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen // Copy Op into place. It still needs to be inserted into the MRI use lists. 682f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen MachineOperand *NewMO = new (Operands + OpNo) MachineOperand(Op); 683f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen NewMO->ParentMI = this; 684f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen 685f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen // When adding a register operand, tell MRI about it. 686f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen if (NewMO->isReg()) { 687ff2b99afc8cbc6cfa73181072888e0f9f07deb7eJakob Stoklund Olesen // Ensure isOnRegUseList() returns false, regardless of Op's status. 688f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen NewMO->Contents.Reg.Prev = 0; 6899c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen // Ignore existing ties. This is not a property that can be copied. 690f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen NewMO->TiedTo = 0; 691f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen // Add the new operand to MRI, but only for instructions in an MBB. 692f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen if (MRI) 693f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen MRI->addRegOperandToUseList(NewMO); 694e941df5e354ff7d327bab8e59af687ec90fdd149Jakob Stoklund Olesen // The MCID operand information isn't accurate until we start adding 695e941df5e354ff7d327bab8e59af687ec90fdd149Jakob Stoklund Olesen // explicit operands. The implicit operands are added first, then the 696e941df5e354ff7d327bab8e59af687ec90fdd149Jakob Stoklund Olesen // explicits are inserted before them. 697e941df5e354ff7d327bab8e59af687ec90fdd149Jakob Stoklund Olesen if (!isImpReg) { 6989c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen // Tie uses to defs as indicated in MCInstrDesc. 699f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen if (NewMO->isUse()) { 700e941df5e354ff7d327bab8e59af687ec90fdd149Jakob Stoklund Olesen int DefIdx = MCID->getOperandConstraint(OpNo, MCOI::TIED_TO); 70194083149fd6891c8a72472cf1814fa6600a75979Jakob Stoklund Olesen if (DefIdx != -1) 70294083149fd6891c8a72472cf1814fa6600a75979Jakob Stoklund Olesen tieOperands(DefIdx, OpNo); 7034ba6916a98fffd9dedac5945ac51d40c8948069eJakob Stoklund Olesen } 704e941df5e354ff7d327bab8e59af687ec90fdd149Jakob Stoklund Olesen // If the register operand is flagged as early, mark the operand as such. 705e941df5e354ff7d327bab8e59af687ec90fdd149Jakob Stoklund Olesen if (MCID->getOperandConstraint(OpNo, MCOI::EARLY_CLOBBER) != -1) 706f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen NewMO->setIsEarlyClobber(true); 70762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 70862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 70962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner} 71062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 71162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// RemoveOperand - Erase an operand from an instruction, leaving it with one 71262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// fewer operand than it started with. 71362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// 71462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattnervoid MachineInstr::RemoveOperand(unsigned OpNo) { 715021e3b6444e9179751002db7b20de96455e03171Jakob Stoklund Olesen assert(OpNo < getNumOperands() && "Invalid operand number"); 716699ac049517285d978ed607b2735976c5ae97ac0Jakob Stoklund Olesen untieRegOperand(OpNo); 717ee61d67c2f1105e23b2ea5110389f3b7b713b504Jim Grosbach 7189c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen#ifndef NDEBUG 7199c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen // Moving tied operands would break the ties. 720021e3b6444e9179751002db7b20de96455e03171Jakob Stoklund Olesen for (unsigned i = OpNo + 1, e = getNumOperands(); i != e; ++i) 7219c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen if (Operands[i].isReg()) 7229c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen assert(!Operands[i].isTied() && "Cannot move tied operands"); 7239c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen#endif 7249c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen 725f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen MachineRegisterInfo *MRI = getRegInfo(); 726f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen if (MRI && Operands[OpNo].isReg()) 727f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen MRI->removeRegOperandFromUseList(Operands + OpNo); 72862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 729f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen // Don't call the MachineOperand destructor. A lot of this code depends on 730f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen // MachineOperand having a trivial destructor anyway, and adding a call here 731f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen // wouldn't make it 'destructor-correct'. 732f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen 733f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen if (unsigned N = NumOperands - 1 - OpNo) 734f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen moveOperands(Operands + OpNo, Operands + OpNo + 1, N, MRI); 735f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen --NumOperands; 73662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner} 73762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 738c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman/// addMemOperand - Add a MachineMemOperand to the machine instruction. 739c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman/// This function should be used only occasionally. The setMemRefs function 740c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman/// is the primary method for setting up a MachineInstr's MemRefs list. 7418e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohmanvoid MachineInstr::addMemOperand(MachineFunction &MF, 742c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman MachineMemOperand *MO) { 743c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman mmo_iterator OldMemRefs = MemRefs; 744861ea230a7841fe4ccc8a1cd5460354e59aeed3cBenjamin Kramer uint16_t OldNumMemRefs = NumMemRefs; 7458e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman 746861ea230a7841fe4ccc8a1cd5460354e59aeed3cBenjamin Kramer uint16_t NewNum = NumMemRefs + 1; 747c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman mmo_iterator NewMemRefs = MF.allocateMemRefsArray(NewNum); 7488e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman 749861ea230a7841fe4ccc8a1cd5460354e59aeed3cBenjamin Kramer std::copy(OldMemRefs, OldMemRefs + OldNumMemRefs, NewMemRefs); 750c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman NewMemRefs[NewNum - 1] = MO; 751c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman 752c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman MemRefs = NewMemRefs; 753861ea230a7841fe4ccc8a1cd5460354e59aeed3cBenjamin Kramer NumMemRefs = NewNum; 754c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman} 75562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 75685f9cef27e6b2605e67e94afc949f5b5f5b90668Benjamin Kramerbool MachineInstr::hasPropertyInBundle(unsigned Mask, QueryType Type) const { 7577c2a4a30e0e16762c75adacebd05ec9fcbccf16bEvan Cheng const MachineBasicBlock *MBB = getParent(); 758ddfd1377d2e4154d44dc3ad217735adc15af2e3fEvan Cheng MachineBasicBlock::const_instr_iterator MII = *this; ++MII; 7597c2a4a30e0e16762c75adacebd05ec9fcbccf16bEvan Cheng while (MII != MBB->end() && MII->isInsideBundle()) { 76085f9cef27e6b2605e67e94afc949f5b5f5b90668Benjamin Kramer if (MII->getDesc().getFlags() & Mask) { 76143d5d4ca1c93529c43e78cc5aa03c4ee10a6b0d8Evan Cheng if (Type == AnyInBundle) 7625a96b3dad2f634c9081c8b2b6c2575441dc5a2bdEvan Cheng return true; 7635a96b3dad2f634c9081c8b2b6c2575441dc5a2bdEvan Cheng } else { 76443d5d4ca1c93529c43e78cc5aa03c4ee10a6b0d8Evan Cheng if (Type == AllInBundle) 7655a96b3dad2f634c9081c8b2b6c2575441dc5a2bdEvan Cheng return false; 7665a96b3dad2f634c9081c8b2b6c2575441dc5a2bdEvan Cheng } 7677c2a4a30e0e16762c75adacebd05ec9fcbccf16bEvan Cheng ++MII; 7687c2a4a30e0e16762c75adacebd05ec9fcbccf16bEvan Cheng } 7695a96b3dad2f634c9081c8b2b6c2575441dc5a2bdEvan Cheng 77043d5d4ca1c93529c43e78cc5aa03c4ee10a6b0d8Evan Cheng return Type == AllInBundle; 7717c2a4a30e0e16762c75adacebd05ec9fcbccf16bEvan Cheng} 7727c2a4a30e0e16762c75adacebd05ec9fcbccf16bEvan Cheng 773506049f29f4f202a8e45feb916cc0264440a7f6dEvan Chengbool MachineInstr::isIdenticalTo(const MachineInstr *Other, 774506049f29f4f202a8e45feb916cc0264440a7f6dEvan Cheng MICheckType Check) const { 77534cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng // If opcodes or number of operands are not the same then the two 77634cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng // instructions are obviously not identical. 77734cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng if (Other->getOpcode() != getOpcode() || 77834cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng Other->getNumOperands() != getNumOperands()) 77934cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng return false; 78034cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng 781ddfd1377d2e4154d44dc3ad217735adc15af2e3fEvan Cheng if (isBundle()) { 782ddfd1377d2e4154d44dc3ad217735adc15af2e3fEvan Cheng // Both instructions are bundles, compare MIs inside the bundle. 783ddfd1377d2e4154d44dc3ad217735adc15af2e3fEvan Cheng MachineBasicBlock::const_instr_iterator I1 = *this; 784ddfd1377d2e4154d44dc3ad217735adc15af2e3fEvan Cheng MachineBasicBlock::const_instr_iterator E1 = getParent()->instr_end(); 785ddfd1377d2e4154d44dc3ad217735adc15af2e3fEvan Cheng MachineBasicBlock::const_instr_iterator I2 = *Other; 786ddfd1377d2e4154d44dc3ad217735adc15af2e3fEvan Cheng MachineBasicBlock::const_instr_iterator E2= Other->getParent()->instr_end(); 787ddfd1377d2e4154d44dc3ad217735adc15af2e3fEvan Cheng while (++I1 != E1 && I1->isInsideBundle()) { 788ddfd1377d2e4154d44dc3ad217735adc15af2e3fEvan Cheng ++I2; 789ddfd1377d2e4154d44dc3ad217735adc15af2e3fEvan Cheng if (I2 == E2 || !I2->isInsideBundle() || !I1->isIdenticalTo(I2, Check)) 790ddfd1377d2e4154d44dc3ad217735adc15af2e3fEvan Cheng return false; 791ddfd1377d2e4154d44dc3ad217735adc15af2e3fEvan Cheng } 792ddfd1377d2e4154d44dc3ad217735adc15af2e3fEvan Cheng } 793ddfd1377d2e4154d44dc3ad217735adc15af2e3fEvan Cheng 79434cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng // Check operands to make sure they match. 79534cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 79634cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng const MachineOperand &MO = getOperand(i); 79734cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng const MachineOperand &OMO = Other->getOperand(i); 798cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng if (!MO.isReg()) { 799cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng if (!MO.isIdenticalTo(OMO)) 800cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng return false; 801cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng continue; 802cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng } 803cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng 80434cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng // Clients may or may not want to ignore defs when testing for equality. 80534cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng // For example, machine CSE pass only cares about finding common 80634cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng // subexpressions, so it's safe to ignore virtual register defs. 807cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng if (MO.isDef()) { 80834cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng if (Check == IgnoreDefs) 80934cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng continue; 810cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng else if (Check == IgnoreVRegDefs) { 811cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng if (TargetRegisterInfo::isPhysicalRegister(MO.getReg()) || 812cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng TargetRegisterInfo::isPhysicalRegister(OMO.getReg())) 813cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng if (MO.getReg() != OMO.getReg()) 814cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng return false; 815cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng } else { 816cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng if (!MO.isIdenticalTo(OMO)) 817cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng return false; 818cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng if (Check == CheckKillDead && MO.isDead() != OMO.isDead()) 81934cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng return false; 820cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng } 821cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng } else { 822cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng if (!MO.isIdenticalTo(OMO)) 823cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng return false; 824cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng if (Check == CheckKillDead && MO.isKill() != OMO.isKill()) 825cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng return false; 826cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng } 82734cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng } 8289194c6716be13e2b8d2cf8e45273bf6c79f8b32cDevang Patel // If DebugLoc does not match then two dbg.values are not identical. 8299194c6716be13e2b8d2cf8e45273bf6c79f8b32cDevang Patel if (isDebugValue()) 8309194c6716be13e2b8d2cf8e45273bf6c79f8b32cDevang Patel if (!getDebugLoc().isUnknown() && !Other->getDebugLoc().isUnknown() 8319194c6716be13e2b8d2cf8e45273bf6c79f8b32cDevang Patel && getDebugLoc() != Other->getDebugLoc()) 8329194c6716be13e2b8d2cf8e45273bf6c79f8b32cDevang Patel return false; 83334cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng return true; 834506049f29f4f202a8e45feb916cc0264440a7f6dEvan Cheng} 835506049f29f4f202a8e45feb916cc0264440a7f6dEvan Cheng 83648d7c069c76882475c23de153bda9483cd3c9bb4Chris LattnerMachineInstr *MachineInstr::removeFromParent() { 83748d7c069c76882475c23de153bda9483cd3c9bb4Chris Lattner assert(getParent() && "Not embedded in a basic block!"); 8389f4692d2953b47e9037ccfe5709a6e75de3911d4Jakob Stoklund Olesen return getParent()->remove(this); 83948d7c069c76882475c23de153bda9483cd3c9bb4Chris Lattner} 84048d7c069c76882475c23de153bda9483cd3c9bb4Chris Lattner 8419f4692d2953b47e9037ccfe5709a6e75de3911d4Jakob Stoklund OlesenMachineInstr *MachineInstr::removeFromBundle() { 8429f4692d2953b47e9037ccfe5709a6e75de3911d4Jakob Stoklund Olesen assert(getParent() && "Not embedded in a basic block!"); 8439f4692d2953b47e9037ccfe5709a6e75de3911d4Jakob Stoklund Olesen return getParent()->remove_instr(this); 8449f4692d2953b47e9037ccfe5709a6e75de3911d4Jakob Stoklund Olesen} 84548d7c069c76882475c23de153bda9483cd3c9bb4Chris Lattner 8468e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohmanvoid MachineInstr::eraseFromParent() { 8478e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman assert(getParent() && "Not embedded in a basic block!"); 8489f4692d2953b47e9037ccfe5709a6e75de3911d4Jakob Stoklund Olesen getParent()->erase(this); 8498e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman} 8508e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman 8519f4692d2953b47e9037ccfe5709a6e75de3911d4Jakob Stoklund Olesenvoid MachineInstr::eraseFromBundle() { 8529f4692d2953b47e9037ccfe5709a6e75de3911d4Jakob Stoklund Olesen assert(getParent() && "Not embedded in a basic block!"); 8539f4692d2953b47e9037ccfe5709a6e75de3911d4Jakob Stoklund Olesen getParent()->erase_instr(this); 8549f4692d2953b47e9037ccfe5709a6e75de3911d4Jakob Stoklund Olesen} 8558e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman 85619e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng/// getNumExplicitOperands - Returns the number of non-implicit operands. 85719e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng/// 85819e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Chengunsigned MachineInstr::getNumExplicitOperands() const { 859e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng unsigned NumOperands = MCID->getNumOperands(); 860e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng if (!MCID->isVariadic()) 86119e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng return NumOperands; 86219e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng 8639407cd4ede3e2c090b958778d0fdbdac8b2dbec4Dan Gohman for (unsigned i = NumOperands, e = getNumOperands(); i != e; ++i) { 8649407cd4ede3e2c090b958778d0fdbdac8b2dbec4Dan Gohman const MachineOperand &MO = getOperand(i); 865d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (!MO.isReg() || !MO.isImplicit()) 86619e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng NumOperands++; 86719e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng } 86819e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng return NumOperands; 86919e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng} 87019e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng 871fad649a5b173f8cfdbbbbde8649ed66afd1129c1Jakob Stoklund Olesenvoid MachineInstr::bundleWithPred() { 872fad649a5b173f8cfdbbbbde8649ed66afd1129c1Jakob Stoklund Olesen assert(!isBundledWithPred() && "MI is already bundled with its predecessor"); 873fad649a5b173f8cfdbbbbde8649ed66afd1129c1Jakob Stoklund Olesen setFlag(BundledPred); 874fad649a5b173f8cfdbbbbde8649ed66afd1129c1Jakob Stoklund Olesen MachineBasicBlock::instr_iterator Pred = this; 875fad649a5b173f8cfdbbbbde8649ed66afd1129c1Jakob Stoklund Olesen --Pred; 876582abddeee6bd49762d562d3e641a4e290d464beJakob Stoklund Olesen assert(!Pred->isBundledWithSucc() && "Inconsistent bundle flags"); 877fad649a5b173f8cfdbbbbde8649ed66afd1129c1Jakob Stoklund Olesen Pred->setFlag(BundledSucc); 878fad649a5b173f8cfdbbbbde8649ed66afd1129c1Jakob Stoklund Olesen} 879fad649a5b173f8cfdbbbbde8649ed66afd1129c1Jakob Stoklund Olesen 880fad649a5b173f8cfdbbbbde8649ed66afd1129c1Jakob Stoklund Olesenvoid MachineInstr::bundleWithSucc() { 881fad649a5b173f8cfdbbbbde8649ed66afd1129c1Jakob Stoklund Olesen assert(!isBundledWithSucc() && "MI is already bundled with its successor"); 882fad649a5b173f8cfdbbbbde8649ed66afd1129c1Jakob Stoklund Olesen setFlag(BundledSucc); 883fad649a5b173f8cfdbbbbde8649ed66afd1129c1Jakob Stoklund Olesen MachineBasicBlock::instr_iterator Succ = this; 884fad649a5b173f8cfdbbbbde8649ed66afd1129c1Jakob Stoklund Olesen ++Succ; 885582abddeee6bd49762d562d3e641a4e290d464beJakob Stoklund Olesen assert(!Succ->isBundledWithPred() && "Inconsistent bundle flags"); 886fad649a5b173f8cfdbbbbde8649ed66afd1129c1Jakob Stoklund Olesen Succ->setFlag(BundledPred); 887fad649a5b173f8cfdbbbbde8649ed66afd1129c1Jakob Stoklund Olesen} 888fad649a5b173f8cfdbbbbde8649ed66afd1129c1Jakob Stoklund Olesen 889fad649a5b173f8cfdbbbbde8649ed66afd1129c1Jakob Stoklund Olesenvoid MachineInstr::unbundleFromPred() { 890fad649a5b173f8cfdbbbbde8649ed66afd1129c1Jakob Stoklund Olesen assert(isBundledWithPred() && "MI isn't bundled with its predecessor"); 891fad649a5b173f8cfdbbbbde8649ed66afd1129c1Jakob Stoklund Olesen clearFlag(BundledPred); 892fad649a5b173f8cfdbbbbde8649ed66afd1129c1Jakob Stoklund Olesen MachineBasicBlock::instr_iterator Pred = this; 893fad649a5b173f8cfdbbbbde8649ed66afd1129c1Jakob Stoklund Olesen --Pred; 894582abddeee6bd49762d562d3e641a4e290d464beJakob Stoklund Olesen assert(Pred->isBundledWithSucc() && "Inconsistent bundle flags"); 895fad649a5b173f8cfdbbbbde8649ed66afd1129c1Jakob Stoklund Olesen Pred->clearFlag(BundledSucc); 896fad649a5b173f8cfdbbbbde8649ed66afd1129c1Jakob Stoklund Olesen} 897fad649a5b173f8cfdbbbbde8649ed66afd1129c1Jakob Stoklund Olesen 898fad649a5b173f8cfdbbbbde8649ed66afd1129c1Jakob Stoklund Olesenvoid MachineInstr::unbundleFromSucc() { 899fad649a5b173f8cfdbbbbde8649ed66afd1129c1Jakob Stoklund Olesen assert(isBundledWithSucc() && "MI isn't bundled with its successor"); 900fad649a5b173f8cfdbbbbde8649ed66afd1129c1Jakob Stoklund Olesen clearFlag(BundledSucc); 901fad649a5b173f8cfdbbbbde8649ed66afd1129c1Jakob Stoklund Olesen MachineBasicBlock::instr_iterator Succ = this; 902fad649a5b173f8cfdbbbbde8649ed66afd1129c1Jakob Stoklund Olesen --Succ; 903582abddeee6bd49762d562d3e641a4e290d464beJakob Stoklund Olesen assert(Succ->isBundledWithPred() && "Inconsistent bundle flags"); 904fad649a5b173f8cfdbbbbde8649ed66afd1129c1Jakob Stoklund Olesen Succ->clearFlag(BundledPred); 905fad649a5b173f8cfdbbbbde8649ed66afd1129c1Jakob Stoklund Olesen} 906fad649a5b173f8cfdbbbbde8649ed66afd1129c1Jakob Stoklund Olesen 907c36b7069b42bece963b7e6adf020353ce990ef76Evan Chengbool MachineInstr::isStackAligningInlineAsm() const { 908c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng if (isInlineAsm()) { 909c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng unsigned ExtraInfo = getOperand(InlineAsm::MIOp_ExtraInfo).getImm(); 910c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng if (ExtraInfo & InlineAsm::Extra_IsAlignStack) 911c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng return true; 912c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng } 913c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng return false; 914c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng} 9158ace2cd034be10c09be51daf08c3dda327f54262Chris Lattner 916576cd11ab8035d4240f7e6ea8d7c6c2e45154f86Chad RosierInlineAsm::AsmDialect MachineInstr::getInlineAsmDialect() const { 917576cd11ab8035d4240f7e6ea8d7c6c2e45154f86Chad Rosier assert(isInlineAsm() && "getInlineAsmDialect() only works for inline asms!"); 918576cd11ab8035d4240f7e6ea8d7c6c2e45154f86Chad Rosier unsigned ExtraInfo = getOperand(InlineAsm::MIOp_ExtraInfo).getImm(); 9192f1d8154795ad82e500fda27d75ec1449e7a0648Chad Rosier return InlineAsm::AsmDialect((ExtraInfo & InlineAsm::Extra_AsmDialect) != 0); 920576cd11ab8035d4240f7e6ea8d7c6c2e45154f86Chad Rosier} 921576cd11ab8035d4240f7e6ea8d7c6c2e45154f86Chad Rosier 9229dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesenint MachineInstr::findInlineAsmFlagIdx(unsigned OpIdx, 9239dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen unsigned *GroupNo) const { 9249dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen assert(isInlineAsm() && "Expected an inline asm instruction"); 9259dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen assert(OpIdx < getNumOperands() && "OpIdx out of range"); 9269dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen 9279dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen // Ignore queries about the initial operands. 9289dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen if (OpIdx < InlineAsm::MIOp_FirstOperand) 9299dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen return -1; 9309dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen 9319dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen unsigned Group = 0; 9329dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen unsigned NumOps; 9339dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen for (unsigned i = InlineAsm::MIOp_FirstOperand, e = getNumOperands(); i < e; 9349dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen i += NumOps) { 9359dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen const MachineOperand &FlagMO = getOperand(i); 9369dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen // If we reach the implicit register operands, stop looking. 9379dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen if (!FlagMO.isImm()) 9389dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen return -1; 9399dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen NumOps = 1 + InlineAsm::getNumOperandRegisters(FlagMO.getImm()); 9409dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen if (i + NumOps > OpIdx) { 9419dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen if (GroupNo) 9429dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen *GroupNo = Group; 9439dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen return i; 9449dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen } 9459dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen ++Group; 9469dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen } 9479dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen return -1; 9489dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen} 9499dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen 950f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund Olesenconst TargetRegisterClass* 951f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund OlesenMachineInstr::getRegClassConstraint(unsigned OpIdx, 952f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund Olesen const TargetInstrInfo *TII, 953f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund Olesen const TargetRegisterInfo *TRI) const { 954397fc4874efe9c17e737d4c5c50bd19dc3bf27f5Jakob Stoklund Olesen assert(getParent() && "Can't have an MBB reference here!"); 955397fc4874efe9c17e737d4c5c50bd19dc3bf27f5Jakob Stoklund Olesen assert(getParent()->getParent() && "Can't have an MF reference here!"); 956397fc4874efe9c17e737d4c5c50bd19dc3bf27f5Jakob Stoklund Olesen const MachineFunction &MF = *getParent()->getParent(); 957397fc4874efe9c17e737d4c5c50bd19dc3bf27f5Jakob Stoklund Olesen 958f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund Olesen // Most opcodes have fixed constraints in their MCInstrDesc. 959f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund Olesen if (!isInlineAsm()) 960397fc4874efe9c17e737d4c5c50bd19dc3bf27f5Jakob Stoklund Olesen return TII->getRegClass(getDesc(), OpIdx, TRI, MF); 961f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund Olesen 962f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund Olesen if (!getOperand(OpIdx).isReg()) 963f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund Olesen return NULL; 964f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund Olesen 965f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund Olesen // For tied uses on inline asm, get the constraint from the def. 966f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund Olesen unsigned DefIdx; 967f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund Olesen if (getOperand(OpIdx).isUse() && isRegTiedToDefOperand(OpIdx, &DefIdx)) 968f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund Olesen OpIdx = DefIdx; 969f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund Olesen 970f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund Olesen // Inline asm stores register class constraints in the flag word. 971f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund Olesen int FlagIdx = findInlineAsmFlagIdx(OpIdx); 972f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund Olesen if (FlagIdx < 0) 973f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund Olesen return NULL; 974f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund Olesen 975f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund Olesen unsigned Flag = getOperand(FlagIdx).getImm(); 976f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund Olesen unsigned RCID; 977f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund Olesen if (InlineAsm::hasRegClassConstraint(Flag, RCID)) 978f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund Olesen return TRI->getRegClass(RCID); 979f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund Olesen 980f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund Olesen // Assume that all registers in a memory operand are pointers. 981f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund Olesen if (InlineAsm::getKind(Flag) == InlineAsm::Kind_Mem) 982397fc4874efe9c17e737d4c5c50bd19dc3bf27f5Jakob Stoklund Olesen return TRI->getPointerRegClass(MF); 983f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund Olesen 984f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund Olesen return NULL; 985f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund Olesen} 986f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund Olesen 987ddfd1377d2e4154d44dc3ad217735adc15af2e3fEvan Cheng/// getBundleSize - Return the number of instructions inside the MI bundle. 988ddfd1377d2e4154d44dc3ad217735adc15af2e3fEvan Chengunsigned MachineInstr::getBundleSize() const { 989ddfd1377d2e4154d44dc3ad217735adc15af2e3fEvan Cheng assert(isBundle() && "Expecting a bundle"); 990ddfd1377d2e4154d44dc3ad217735adc15af2e3fEvan Cheng 991dc6d846df56f83be4c7045ccc9092f8a8343360bAkira Hatanaka const MachineBasicBlock *MBB = getParent(); 992dc6d846df56f83be4c7045ccc9092f8a8343360bAkira Hatanaka MachineBasicBlock::const_instr_iterator I = *this, E = MBB->instr_end(); 993ddfd1377d2e4154d44dc3ad217735adc15af2e3fEvan Cheng unsigned Size = 0; 994dc6d846df56f83be4c7045ccc9092f8a8343360bAkira Hatanaka while ((++I != E) && I->isInsideBundle()) { 995ddfd1377d2e4154d44dc3ad217735adc15af2e3fEvan Cheng ++Size; 996ddfd1377d2e4154d44dc3ad217735adc15af2e3fEvan Cheng } 997ddfd1377d2e4154d44dc3ad217735adc15af2e3fEvan Cheng assert(Size > 1 && "Malformed bundle"); 998ddfd1377d2e4154d44dc3ad217735adc15af2e3fEvan Cheng 999ddfd1377d2e4154d44dc3ad217735adc15af2e3fEvan Cheng return Size; 1000ddfd1377d2e4154d44dc3ad217735adc15af2e3fEvan Cheng} 1001ddfd1377d2e4154d44dc3ad217735adc15af2e3fEvan Cheng 1002faa510726f4b40aa4495e60e4d341c6467e3fb01Evan Cheng/// findRegisterUseOperandIdx() - Returns the MachineOperand that is a use of 1003f9ca50e3dce88b2f9e2f2f0cac2d3ed78afda841Jim Grosbach/// the specific register or -1 if it is not found. It further tightens 100476d7e76c15c258ec4a71fd75a2a32bca3a5e5e27Evan Cheng/// the search criteria to a use that kills the register if isKill is true. 10056130f66eaae89f8878590796977678afa8448926Evan Chengint MachineInstr::findRegisterUseOperandIdx(unsigned Reg, bool isKill, 10066130f66eaae89f8878590796977678afa8448926Evan Cheng const TargetRegisterInfo *TRI) const { 1007576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 1008f277ee4be7edabb759a7f78138b693d72d0c263fEvan Cheng const MachineOperand &MO = getOperand(i); 1009d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (!MO.isReg() || !MO.isUse()) 10106130f66eaae89f8878590796977678afa8448926Evan Cheng continue; 10116130f66eaae89f8878590796977678afa8448926Evan Cheng unsigned MOReg = MO.getReg(); 10126130f66eaae89f8878590796977678afa8448926Evan Cheng if (!MOReg) 10136130f66eaae89f8878590796977678afa8448926Evan Cheng continue; 10146130f66eaae89f8878590796977678afa8448926Evan Cheng if (MOReg == Reg || 10156130f66eaae89f8878590796977678afa8448926Evan Cheng (TRI && 10166130f66eaae89f8878590796977678afa8448926Evan Cheng TargetRegisterInfo::isPhysicalRegister(MOReg) && 10176130f66eaae89f8878590796977678afa8448926Evan Cheng TargetRegisterInfo::isPhysicalRegister(Reg) && 10186130f66eaae89f8878590796977678afa8448926Evan Cheng TRI->isSubRegister(MOReg, Reg))) 101976d7e76c15c258ec4a71fd75a2a32bca3a5e5e27Evan Cheng if (!isKill || MO.isKill()) 102032eb1f1ca4220d2f24916e587ad7e8574d7d82a1Evan Cheng return i; 1021b371f457b0ea4a652a9f526ba4375c80ae542252Evan Cheng } 102232eb1f1ca4220d2f24916e587ad7e8574d7d82a1Evan Cheng return -1; 1023b371f457b0ea4a652a9f526ba4375c80ae542252Evan Cheng} 10247ebc4d63db05ac214d36bc01b4d60adadaf923e5Jakob Stoklund Olesen 102518b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesen/// readsWritesVirtualRegister - Return a pair of bools (reads, writes) 102618b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesen/// indicating if this instruction reads or writes Reg. This also considers 102718b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesen/// partial defines. 102818b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesenstd::pair<bool,bool> 102918b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund OlesenMachineInstr::readsWritesVirtualRegister(unsigned Reg, 103018b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesen SmallVectorImpl<unsigned> *Ops) const { 103118b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesen bool PartDef = false; // Partial redefine. 103218b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesen bool FullDef = false; // Full define. 103318b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesen bool Use = false; 10347ebc4d63db05ac214d36bc01b4d60adadaf923e5Jakob Stoklund Olesen 10357ebc4d63db05ac214d36bc01b4d60adadaf923e5Jakob Stoklund Olesen for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 10367ebc4d63db05ac214d36bc01b4d60adadaf923e5Jakob Stoklund Olesen const MachineOperand &MO = getOperand(i); 10377ebc4d63db05ac214d36bc01b4d60adadaf923e5Jakob Stoklund Olesen if (!MO.isReg() || MO.getReg() != Reg) 10387ebc4d63db05ac214d36bc01b4d60adadaf923e5Jakob Stoklund Olesen continue; 103918b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesen if (Ops) 104018b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesen Ops->push_back(i); 10417ebc4d63db05ac214d36bc01b4d60adadaf923e5Jakob Stoklund Olesen if (MO.isUse()) 104218b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesen Use |= !MO.isUndef(); 1043201f2463a72f88121a3a31e7386029e99d2d75daJakob Stoklund Olesen else if (MO.getSubReg() && !MO.isUndef()) 1044201f2463a72f88121a3a31e7386029e99d2d75daJakob Stoklund Olesen // A partial <def,undef> doesn't count as reading the register. 10457ebc4d63db05ac214d36bc01b4d60adadaf923e5Jakob Stoklund Olesen PartDef = true; 10467ebc4d63db05ac214d36bc01b4d60adadaf923e5Jakob Stoklund Olesen else 10477ebc4d63db05ac214d36bc01b4d60adadaf923e5Jakob Stoklund Olesen FullDef = true; 10487ebc4d63db05ac214d36bc01b4d60adadaf923e5Jakob Stoklund Olesen } 104918b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesen // A partial redefine uses Reg unless there is also a full define. 105018b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesen return std::make_pair(Use || (PartDef && !FullDef), PartDef || FullDef); 10517ebc4d63db05ac214d36bc01b4d60adadaf923e5Jakob Stoklund Olesen} 10527ebc4d63db05ac214d36bc01b4d60adadaf923e5Jakob Stoklund Olesen 10536130f66eaae89f8878590796977678afa8448926Evan Cheng/// findRegisterDefOperandIdx() - Returns the operand index that is a def of 1054703bfe69092e8da79fbef2fc5ca07b805ad9f753Dan Gohman/// the specified register or -1 if it is not found. If isDead is true, defs 1055703bfe69092e8da79fbef2fc5ca07b805ad9f753Dan Gohman/// that are not dead are skipped. If TargetRegisterInfo is non-null, then it 1056703bfe69092e8da79fbef2fc5ca07b805ad9f753Dan Gohman/// also checks if there is a def of a super-register. 10571015ba7018c87f48cc7bb45a564eb4a27241e76aEvan Chengint 10581015ba7018c87f48cc7bb45a564eb4a27241e76aEvan ChengMachineInstr::findRegisterDefOperandIdx(unsigned Reg, bool isDead, bool Overlap, 10591015ba7018c87f48cc7bb45a564eb4a27241e76aEvan Cheng const TargetRegisterInfo *TRI) const { 10601015ba7018c87f48cc7bb45a564eb4a27241e76aEvan Cheng bool isPhys = TargetRegisterInfo::isPhysicalRegister(Reg); 1061b371f457b0ea4a652a9f526ba4375c80ae542252Evan Cheng for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 10626130f66eaae89f8878590796977678afa8448926Evan Cheng const MachineOperand &MO = getOperand(i); 10631cf8b0f2a5435d8444b6cc7d4a27eef424398273Jakob Stoklund Olesen // Accept regmask operands when Overlap is set. 10641cf8b0f2a5435d8444b6cc7d4a27eef424398273Jakob Stoklund Olesen // Ignore them when looking for a specific def operand (Overlap == false). 10651cf8b0f2a5435d8444b6cc7d4a27eef424398273Jakob Stoklund Olesen if (isPhys && Overlap && MO.isRegMask() && MO.clobbersPhysReg(Reg)) 10661cf8b0f2a5435d8444b6cc7d4a27eef424398273Jakob Stoklund Olesen return i; 1067d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (!MO.isReg() || !MO.isDef()) 10686130f66eaae89f8878590796977678afa8448926Evan Cheng continue; 10696130f66eaae89f8878590796977678afa8448926Evan Cheng unsigned MOReg = MO.getReg(); 10701015ba7018c87f48cc7bb45a564eb4a27241e76aEvan Cheng bool Found = (MOReg == Reg); 10711015ba7018c87f48cc7bb45a564eb4a27241e76aEvan Cheng if (!Found && TRI && isPhys && 10721015ba7018c87f48cc7bb45a564eb4a27241e76aEvan Cheng TargetRegisterInfo::isPhysicalRegister(MOReg)) { 10731015ba7018c87f48cc7bb45a564eb4a27241e76aEvan Cheng if (Overlap) 10741015ba7018c87f48cc7bb45a564eb4a27241e76aEvan Cheng Found = TRI->regsOverlap(MOReg, Reg); 10751015ba7018c87f48cc7bb45a564eb4a27241e76aEvan Cheng else 10761015ba7018c87f48cc7bb45a564eb4a27241e76aEvan Cheng Found = TRI->isSubRegister(MOReg, Reg); 10771015ba7018c87f48cc7bb45a564eb4a27241e76aEvan Cheng } 10781015ba7018c87f48cc7bb45a564eb4a27241e76aEvan Cheng if (Found && (!isDead || MO.isDead())) 10791015ba7018c87f48cc7bb45a564eb4a27241e76aEvan Cheng return i; 1080576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng } 10816130f66eaae89f8878590796977678afa8448926Evan Cheng return -1; 1082576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng} 108319e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng 1084f277ee4be7edabb759a7f78138b693d72d0c263fEvan Cheng/// findFirstPredOperandIdx() - Find the index of the first operand in the 1085f277ee4be7edabb759a7f78138b693d72d0c263fEvan Cheng/// operand list that is used to represent the predicate. It returns -1 if 1086f277ee4be7edabb759a7f78138b693d72d0c263fEvan Cheng/// none is found. 1087f277ee4be7edabb759a7f78138b693d72d0c263fEvan Chengint MachineInstr::findFirstPredOperandIdx() const { 1088f8e1e3e729473b8b2b7ee6134b6417976af84d05Jim Grosbach // Don't call MCID.findFirstPredOperandIdx() because this variant 1089f8e1e3e729473b8b2b7ee6134b6417976af84d05Jim Grosbach // is sometimes called on an instruction that's not yet complete, and 1090f8e1e3e729473b8b2b7ee6134b6417976af84d05Jim Grosbach // so the number of operands is less than the MCID indicates. In 1091f8e1e3e729473b8b2b7ee6134b6417976af84d05Jim Grosbach // particular, the PTX target does this. 1092e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng const MCInstrDesc &MCID = getDesc(); 1093e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng if (MCID.isPredicable()) { 109419e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng for (unsigned i = 0, e = getNumOperands(); i != e; ++i) 1095e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng if (MCID.OpInfo[i].isPredicate()) 1096f277ee4be7edabb759a7f78138b693d72d0c263fEvan Cheng return i; 109719e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng } 109819e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng 1099f277ee4be7edabb759a7f78138b693d72d0c263fEvan Cheng return -1; 110019e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng} 1101ee61d67c2f1105e23b2ea5110389f3b7b713b504Jim Grosbach 11029c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen// MachineOperand::TiedTo is 4 bits wide. 11039c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesenconst unsigned TiedMax = 15; 11049c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen 11059c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen/// tieOperands - Mark operands at DefIdx and UseIdx as tied to each other. 11069c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen/// 11079c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen/// Use and def operands can be tied together, indicated by a non-zero TiedTo 11089c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen/// field. TiedTo can have these values: 11099c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen/// 11109c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen/// 0: Operand is not tied to anything. 11119c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen/// 1 to TiedMax-1: Tied to getOperand(TiedTo-1). 11129c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen/// TiedMax: Tied to an operand >= TiedMax-1. 11139c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen/// 11149c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen/// The tied def must be one of the first TiedMax operands on a normal 11159c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen/// instruction. INLINEASM instructions allow more tied defs. 11169c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen/// 111794083149fd6891c8a72472cf1814fa6600a75979Jakob Stoklund Olesenvoid MachineInstr::tieOperands(unsigned DefIdx, unsigned UseIdx) { 111894083149fd6891c8a72472cf1814fa6600a75979Jakob Stoklund Olesen MachineOperand &DefMO = getOperand(DefIdx); 111994083149fd6891c8a72472cf1814fa6600a75979Jakob Stoklund Olesen MachineOperand &UseMO = getOperand(UseIdx); 112094083149fd6891c8a72472cf1814fa6600a75979Jakob Stoklund Olesen assert(DefMO.isDef() && "DefIdx must be a def operand"); 112194083149fd6891c8a72472cf1814fa6600a75979Jakob Stoklund Olesen assert(UseMO.isUse() && "UseIdx must be a use operand"); 112294083149fd6891c8a72472cf1814fa6600a75979Jakob Stoklund Olesen assert(!DefMO.isTied() && "Def is already tied to another use"); 112394083149fd6891c8a72472cf1814fa6600a75979Jakob Stoklund Olesen assert(!UseMO.isTied() && "Use is already tied to another def"); 112494083149fd6891c8a72472cf1814fa6600a75979Jakob Stoklund Olesen 11259c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen if (DefIdx < TiedMax) 11269c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen UseMO.TiedTo = DefIdx + 1; 11279c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen else { 11289c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen // Inline asm can use the group descriptors to find tied operands, but on 11299c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen // normal instruction, the tied def must be within the first TiedMax 11309c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen // operands. 11319c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen assert(isInlineAsm() && "DefIdx out of range"); 11329c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen UseMO.TiedTo = TiedMax; 11339c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen } 11349c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen 11359c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen // UseIdx can be out of range, we'll search for it in findTiedOperandIdx(). 11369c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen DefMO.TiedTo = std::min(UseIdx + 1, TiedMax); 113794083149fd6891c8a72472cf1814fa6600a75979Jakob Stoklund Olesen} 113894083149fd6891c8a72472cf1814fa6600a75979Jakob Stoklund Olesen 1139699ac049517285d978ed607b2735976c5ae97ac0Jakob Stoklund Olesen/// Given the index of a tied register operand, find the operand it is tied to. 1140699ac049517285d978ed607b2735976c5ae97ac0Jakob Stoklund Olesen/// Defs are tied to uses and vice versa. Returns the index of the tied operand 1141699ac049517285d978ed607b2735976c5ae97ac0Jakob Stoklund Olesen/// which must exist. 1142699ac049517285d978ed607b2735976c5ae97ac0Jakob Stoklund Olesenunsigned MachineInstr::findTiedOperandIdx(unsigned OpIdx) const { 11439c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen const MachineOperand &MO = getOperand(OpIdx); 11449c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen assert(MO.isTied() && "Operand isn't tied"); 11459c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen 11469c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen // Normally TiedTo is in range. 11479c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen if (MO.TiedTo < TiedMax) 11489c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen return MO.TiedTo - 1; 11499c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen 11509c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen // Uses on normal instructions can be out of range. 11519c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen if (!isInlineAsm()) { 11529c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen // Normal tied defs must be in the 0..TiedMax-1 range. 11539c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen if (MO.isUse()) 11549c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen return TiedMax - 1; 11559c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen // MO is a def. Search for the tied use. 11569c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen for (unsigned i = TiedMax - 1, e = getNumOperands(); i != e; ++i) { 11579c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen const MachineOperand &UseMO = getOperand(i); 11589c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen if (UseMO.isReg() && UseMO.isUse() && UseMO.TiedTo == OpIdx + 1) 11599c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen return i; 1160699ac049517285d978ed607b2735976c5ae97ac0Jakob Stoklund Olesen } 11619c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen llvm_unreachable("Can't find tied use"); 1162699ac049517285d978ed607b2735976c5ae97ac0Jakob Stoklund Olesen } 1163699ac049517285d978ed607b2735976c5ae97ac0Jakob Stoklund Olesen 11649c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen // Now deal with inline asm by parsing the operand group descriptor flags. 11659c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen // Find the beginning of each operand group. 11669c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen SmallVector<unsigned, 8> GroupIdx; 11679c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen unsigned OpIdxGroup = ~0u; 11689c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen unsigned NumOps; 11699c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen for (unsigned i = InlineAsm::MIOp_FirstOperand, e = getNumOperands(); i < e; 11709c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen i += NumOps) { 11719c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen const MachineOperand &FlagMO = getOperand(i); 11729c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen assert(FlagMO.isImm() && "Invalid tied operand on inline asm"); 11739c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen unsigned CurGroup = GroupIdx.size(); 11749c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen GroupIdx.push_back(i); 11759c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen NumOps = 1 + InlineAsm::getNumOperandRegisters(FlagMO.getImm()); 11769c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen // OpIdx belongs to this operand group. 11779c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen if (OpIdx > i && OpIdx < i + NumOps) 11789c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen OpIdxGroup = CurGroup; 11799c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen unsigned TiedGroup; 11809c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen if (!InlineAsm::isUseOperandTiedToDef(FlagMO.getImm(), TiedGroup)) 11819c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen continue; 11829c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen // Operands in this group are tied to operands in TiedGroup which must be 11839c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen // earlier. Find the number of operands between the two groups. 11849c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen unsigned Delta = i - GroupIdx[TiedGroup]; 11859c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen 11869c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen // OpIdx is a use tied to TiedGroup. 11879c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen if (OpIdxGroup == CurGroup) 11889c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen return OpIdx - Delta; 11899c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen 11909c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen // OpIdx is a def tied to this use group. 11919c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen if (OpIdxGroup == TiedGroup) 11929c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen return OpIdx + Delta; 11939c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen } 11949c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen llvm_unreachable("Invalid tied operand on inline asm"); 1195699ac049517285d978ed607b2735976c5ae97ac0Jakob Stoklund Olesen} 1196699ac049517285d978ed607b2735976c5ae97ac0Jakob Stoklund Olesen 1197e6cd757e6800b9b94a6459ec148c0624c4f2e3c1Dan Gohman/// clearKillInfo - Clears kill flags on all operands. 1198e6cd757e6800b9b94a6459ec148c0624c4f2e3c1Dan Gohman/// 1199e6cd757e6800b9b94a6459ec148c0624c4f2e3c1Dan Gohmanvoid MachineInstr::clearKillInfo() { 1200e6cd757e6800b9b94a6459ec148c0624c4f2e3c1Dan Gohman for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 1201e6cd757e6800b9b94a6459ec148c0624c4f2e3c1Dan Gohman MachineOperand &MO = getOperand(i); 1202e6cd757e6800b9b94a6459ec148c0624c4f2e3c1Dan Gohman if (MO.isReg() && MO.isUse()) 1203e6cd757e6800b9b94a6459ec148c0624c4f2e3c1Dan Gohman MO.setIsKill(false); 1204e6cd757e6800b9b94a6459ec148c0624c4f2e3c1Dan Gohman } 1205e6cd757e6800b9b94a6459ec148c0624c4f2e3c1Dan Gohman} 1206e6cd757e6800b9b94a6459ec148c0624c4f2e3c1Dan Gohman 12079edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesenvoid MachineInstr::substituteRegister(unsigned FromReg, 12089edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen unsigned ToReg, 12099edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen unsigned SubIdx, 12109edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen const TargetRegisterInfo &RegInfo) { 12119edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen if (TargetRegisterInfo::isPhysicalRegister(ToReg)) { 12129edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen if (SubIdx) 12139edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen ToReg = RegInfo.getSubReg(ToReg, SubIdx); 12149edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 12159edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen MachineOperand &MO = getOperand(i); 12169edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen if (!MO.isReg() || MO.getReg() != FromReg) 12179edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen continue; 12189edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen MO.substPhysReg(ToReg, RegInfo); 12199edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen } 12209edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen } else { 12219edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 12229edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen MachineOperand &MO = getOperand(i); 12239edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen if (!MO.isReg() || MO.getReg() != FromReg) 12249edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen continue; 12259edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen MO.substVirtReg(ToReg, SubIdx, RegInfo); 12269edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen } 12279edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen } 12289edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen} 12299edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen 12309f1c8317a4676945b4961ddb9827ef2412551620Evan Cheng/// isSafeToMove - Return true if it is safe to move this instruction. If 12319f1c8317a4676945b4961ddb9827ef2412551620Evan Cheng/// SawStore is set to true, it means that there is a store (or call) between 12329f1c8317a4676945b4961ddb9827ef2412551620Evan Cheng/// the instruction's location and its intended destination. 1233b3b930a011554fc7566dd4311af3862b01e5fd8fDan Gohmanbool MachineInstr::isSafeToMove(const TargetInstrInfo *TII, 1234ac1abde05b7e6956c01deb6557539bee8fea30f4Evan Cheng AliasAnalysis *AA, 1235ac1abde05b7e6956c01deb6557539bee8fea30f4Evan Cheng bool &SawStore) const { 1236b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng // Ignore stuff that we obviously can't move. 12370d7585839540abb9ab661a741dc3e0c2c860bcebJakob Stoklund Olesen // 12380d7585839540abb9ab661a741dc3e0c2c860bcebJakob Stoklund Olesen // Treat volatile loads as stores. This is not strictly necessary for 12394f1a56ce3c08763c89e9cf50e9503a87247ac4e9Jakob Stoklund Olesen // volatiles, but it is required for atomic loads. It is not allowed to move 12400d7585839540abb9ab661a741dc3e0c2c860bcebJakob Stoklund Olesen // a load across an atomic load with Ordering > Monotonic. 12410d7585839540abb9ab661a741dc3e0c2c860bcebJakob Stoklund Olesen if (mayStore() || isCall() || 1242f036f7a1e79910bf5b5b6f37d2e512b4f01155a0Jakob Stoklund Olesen (mayLoad() && hasOrderedMemoryRef())) { 1243b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng SawStore = true; 1244b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng return false; 1245b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng } 124630a343aeedf777f9b8b6be9823da750afbf765b1Evan Cheng 124730a343aeedf777f9b8b6be9823da750afbf765b1Evan Cheng if (isLabel() || isDebugValue() || 12485a96b3dad2f634c9081c8b2b6c2575441dc5a2bdEvan Cheng isTerminator() || hasUnmodeledSideEffects()) 1249b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng return false; 1250b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng 1251b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng // See if this instruction does a load. If so, we have to guarantee that the 1252b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng // loaded value doesn't change between the load and the its intended 1253b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng // destination. The check for isInvariantLoad gives the targe the chance to 1254b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng // classify the load as always returning a constant, e.g. a constant pool 1255b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng // load. 12565a96b3dad2f634c9081c8b2b6c2575441dc5a2bdEvan Cheng if (mayLoad() && !isInvariantLoad(AA)) 1257b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng // Otherwise, this is a real load. If there is a store between the load and 12580d7585839540abb9ab661a741dc3e0c2c860bcebJakob Stoklund Olesen // end of block, we can't move it. 12590d7585839540abb9ab661a741dc3e0c2c860bcebJakob Stoklund Olesen return !SawStore; 12603e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman 1261b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng return true; 1262b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng} 1263b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng 1264df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng/// isSafeToReMat - Return true if it's safe to rematerialize the specified 1265df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng/// instruction which defined the specified register instead of copying it. 1266b3b930a011554fc7566dd4311af3862b01e5fd8fDan Gohmanbool MachineInstr::isSafeToReMat(const TargetInstrInfo *TII, 1267ac1abde05b7e6956c01deb6557539bee8fea30f4Evan Cheng AliasAnalysis *AA, 1268ac1abde05b7e6956c01deb6557539bee8fea30f4Evan Cheng unsigned DstReg) const { 1269df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng bool SawStore = false; 1270a70dca156fa76d452f54829b5c5f962ddfd94ef2Dan Gohman if (!TII->isTriviallyReMaterializable(this, AA) || 1271ac1abde05b7e6956c01deb6557539bee8fea30f4Evan Cheng !isSafeToMove(TII, AA, SawStore)) 1272df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng return false; 1273df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 1274cbad42cfd1cc93a41ff26ea2e8895bfbc09f54f2Dan Gohman const MachineOperand &MO = getOperand(i); 1275d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (!MO.isReg()) 1276df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng continue; 1277df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng // FIXME: For now, do not remat any instruction with register operands. 1278df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng // Later on, we can loosen the restriction is the register operands have 1279df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng // not been modified between the def and use. Note, this is different from 12808763c1c54413c9cd0b56e2860edb5856151a69fcEvan Cheng // MachineSink because the code is no longer in two-address form (at least 1281df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng // partially). 1282df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng if (MO.isUse()) 1283df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng return false; 1284df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng else if (!MO.isDead() && MO.getReg() != DstReg) 1285df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng return false; 1286df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng } 1287df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng return true; 1288df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng} 1289df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng 1290f036f7a1e79910bf5b5b6f37d2e512b4f01155a0Jakob Stoklund Olesen/// hasOrderedMemoryRef - Return true if this instruction may have an ordered 1291f036f7a1e79910bf5b5b6f37d2e512b4f01155a0Jakob Stoklund Olesen/// or volatile memory reference, or if the information describing the memory 1292f036f7a1e79910bf5b5b6f37d2e512b4f01155a0Jakob Stoklund Olesen/// reference is not available. Return false if it is known to have no ordered 1293f036f7a1e79910bf5b5b6f37d2e512b4f01155a0Jakob Stoklund Olesen/// memory references. 1294f036f7a1e79910bf5b5b6f37d2e512b4f01155a0Jakob Stoklund Olesenbool MachineInstr::hasOrderedMemoryRef() const { 12953e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman // An instruction known never to access memory won't have a volatile access. 12965a96b3dad2f634c9081c8b2b6c2575441dc5a2bdEvan Cheng if (!mayStore() && 12975a96b3dad2f634c9081c8b2b6c2575441dc5a2bdEvan Cheng !mayLoad() && 12985a96b3dad2f634c9081c8b2b6c2575441dc5a2bdEvan Cheng !isCall() && 1299c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng !hasUnmodeledSideEffects()) 13003e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman return false; 13013e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman 13023e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman // Otherwise, if the instruction has no memory reference information, 13033e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman // conservatively assume it wasn't preserved. 13043e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman if (memoperands_empty()) 13053e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman return true; 1306ee61d67c2f1105e23b2ea5110389f3b7b713b504Jim Grosbach 1307f036f7a1e79910bf5b5b6f37d2e512b4f01155a0Jakob Stoklund Olesen // Check the memory reference information for ordered references. 1308c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman for (mmo_iterator I = memoperands_begin(), E = memoperands_end(); I != E; ++I) 1309f036f7a1e79910bf5b5b6f37d2e512b4f01155a0Jakob Stoklund Olesen if (!(*I)->isUnordered()) 13103e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman return true; 13113e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman 13123e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman return false; 13133e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman} 13143e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman 1315e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman/// isInvariantLoad - Return true if this instruction is loading from a 1316e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman/// location whose value is invariant across the function. For example, 1317f451cb870efcf9e0302d25ed05f4cac6bb494e42Dan Gohman/// loading a value from the constant pool or from the argument area 1318e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman/// of a function if it does not change. This should only return true of 1319e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman/// *all* loads the instruction does are invariant (if it does multiple loads). 1320e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohmanbool MachineInstr::isInvariantLoad(AliasAnalysis *AA) const { 1321e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman // If the instruction doesn't load at all, it isn't an invariant load. 13225a96b3dad2f634c9081c8b2b6c2575441dc5a2bdEvan Cheng if (!mayLoad()) 1323e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman return false; 1324e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman 1325e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman // If the instruction has lost its memoperands, conservatively assume that 1326e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman // it may not be an invariant load. 1327e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman if (memoperands_empty()) 1328e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman return false; 1329e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman 1330e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman const MachineFrameInfo *MFI = getParent()->getParent()->getFrameInfo(); 1331e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman 1332e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman for (mmo_iterator I = memoperands_begin(), 1333e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman E = memoperands_end(); I != E; ++I) { 1334e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman if ((*I)->isVolatile()) return false; 1335e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman if ((*I)->isStore()) return false; 1336d752e0f7e64585839cb3a458ef52456eaebbea3cPete Cooper if ((*I)->isInvariant()) return true; 1337e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman 1338e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman if (const Value *V = (*I)->getValue()) { 1339e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman // A load from a constant PseudoSourceValue is invariant. 1340e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman if (const PseudoSourceValue *PSV = dyn_cast<PseudoSourceValue>(V)) 1341e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman if (PSV->isConstant(MFI)) 1342e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman continue; 1343e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman // If we have an AliasAnalysis, ask it whether the memory is constant. 1344f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman if (AA && AA->pointsToConstantMemory( 1345f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman AliasAnalysis::Location(V, (*I)->getSize(), 1346f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman (*I)->getTBAAInfo()))) 1347e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman continue; 1348e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman } 1349e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman 1350e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman // Otherwise assume conservatively. 1351e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman return false; 1352e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman } 1353e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman 1354e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman // Everything checks out. 1355e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman return true; 1356e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman} 1357e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman 1358229694f0ee630ceabe96a8bd48952f6740f928b2Evan Cheng/// isConstantValuePHI - If the specified instruction is a PHI that always 1359229694f0ee630ceabe96a8bd48952f6740f928b2Evan Cheng/// merges together the same virtual register, return the register, otherwise 1360229694f0ee630ceabe96a8bd48952f6740f928b2Evan Cheng/// return 0. 1361229694f0ee630ceabe96a8bd48952f6740f928b2Evan Chengunsigned MachineInstr::isConstantValuePHI() const { 1362518bb53485df640d7b7e3f6b0544099020c42aa7Chris Lattner if (!isPHI()) 1363229694f0ee630ceabe96a8bd48952f6740f928b2Evan Cheng return 0; 1364d8f079c25e8bcaf4d10bfa9c3f6a38cd5ac84329Evan Cheng assert(getNumOperands() >= 3 && 1365d8f079c25e8bcaf4d10bfa9c3f6a38cd5ac84329Evan Cheng "It's illegal to have a PHI without source operands"); 1366229694f0ee630ceabe96a8bd48952f6740f928b2Evan Cheng 1367229694f0ee630ceabe96a8bd48952f6740f928b2Evan Cheng unsigned Reg = getOperand(1).getReg(); 1368229694f0ee630ceabe96a8bd48952f6740f928b2Evan Cheng for (unsigned i = 3, e = getNumOperands(); i < e; i += 2) 1369229694f0ee630ceabe96a8bd48952f6740f928b2Evan Cheng if (getOperand(i).getReg() != Reg) 1370229694f0ee630ceabe96a8bd48952f6740f928b2Evan Cheng return 0; 1371229694f0ee630ceabe96a8bd48952f6740f928b2Evan Cheng return Reg; 1372229694f0ee630ceabe96a8bd48952f6740f928b2Evan Cheng} 1373229694f0ee630ceabe96a8bd48952f6740f928b2Evan Cheng 1374c36b7069b42bece963b7e6adf020353ce990ef76Evan Chengbool MachineInstr::hasUnmodeledSideEffects() const { 13755a96b3dad2f634c9081c8b2b6c2575441dc5a2bdEvan Cheng if (hasProperty(MCID::UnmodeledSideEffects)) 1376c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng return true; 1377c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng if (isInlineAsm()) { 1378c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng unsigned ExtraInfo = getOperand(InlineAsm::MIOp_ExtraInfo).getImm(); 1379c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng if (ExtraInfo & InlineAsm::Extra_HasSideEffects) 1380c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng return true; 1381c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng } 1382c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng 1383c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng return false; 1384c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng} 1385c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng 1386a57fabe815ccf016eead526eb3ef475f116ab155Evan Cheng/// allDefsAreDead - Return true if all the defs of this instruction are dead. 1387a57fabe815ccf016eead526eb3ef475f116ab155Evan Cheng/// 1388a57fabe815ccf016eead526eb3ef475f116ab155Evan Chengbool MachineInstr::allDefsAreDead() const { 1389a57fabe815ccf016eead526eb3ef475f116ab155Evan Cheng for (unsigned i = 0, e = getNumOperands(); i < e; ++i) { 1390a57fabe815ccf016eead526eb3ef475f116ab155Evan Cheng const MachineOperand &MO = getOperand(i); 1391a57fabe815ccf016eead526eb3ef475f116ab155Evan Cheng if (!MO.isReg() || MO.isUse()) 1392a57fabe815ccf016eead526eb3ef475f116ab155Evan Cheng continue; 1393a57fabe815ccf016eead526eb3ef475f116ab155Evan Cheng if (!MO.isDead()) 1394a57fabe815ccf016eead526eb3ef475f116ab155Evan Cheng return false; 1395a57fabe815ccf016eead526eb3ef475f116ab155Evan Cheng } 1396a57fabe815ccf016eead526eb3ef475f116ab155Evan Cheng return true; 1397a57fabe815ccf016eead526eb3ef475f116ab155Evan Cheng} 1398a57fabe815ccf016eead526eb3ef475f116ab155Evan Cheng 1399c8f46c45a0bdefdb91593cabc87547cc45f9d89dEvan Cheng/// copyImplicitOps - Copy implicit register operands from specified 1400c8f46c45a0bdefdb91593cabc87547cc45f9d89dEvan Cheng/// instruction to this instruction. 1401be06aacaa9a270384599bbfa850b967e9996b9fbJakob Stoklund Olesenvoid MachineInstr::copyImplicitOps(MachineFunction &MF, 1402be06aacaa9a270384599bbfa850b967e9996b9fbJakob Stoklund Olesen const MachineInstr *MI) { 1403c8f46c45a0bdefdb91593cabc87547cc45f9d89dEvan Cheng for (unsigned i = MI->getDesc().getNumOperands(), e = MI->getNumOperands(); 1404c8f46c45a0bdefdb91593cabc87547cc45f9d89dEvan Cheng i != e; ++i) { 1405c8f46c45a0bdefdb91593cabc87547cc45f9d89dEvan Cheng const MachineOperand &MO = MI->getOperand(i); 1406c8f46c45a0bdefdb91593cabc87547cc45f9d89dEvan Cheng if (MO.isReg() && MO.isImplicit()) 1407be06aacaa9a270384599bbfa850b967e9996b9fbJakob Stoklund Olesen addOperand(MF, MO); 1408c8f46c45a0bdefdb91593cabc87547cc45f9d89dEvan Cheng } 1409c8f46c45a0bdefdb91593cabc87547cc45f9d89dEvan Cheng} 1410c8f46c45a0bdefdb91593cabc87547cc45f9d89dEvan Cheng 141121326fc2ad47ee7e73a8c0b03a4a0cc0b0a0c4e8Brian Gaekevoid MachineInstr::dump() const { 1412b720be6a50f4e1b3280d2b029ee38dda14577525Manman Ren#if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP) 14133b325334102144ec39910563eabebde434504564David Greene dbgs() << " " << *this; 141477e300e8f0b8db8eec448cae9c87d7c5bfad9757Manman Ren#endif 14155ca6bd14a00ba5310ce1a632d3a0cc8f8af31433Mon P Wang} 14165ca6bd14a00ba5310ce1a632d3a0cc8f8af31433Mon P Wang 1417ee61d67c2f1105e23b2ea5110389f3b7b713b504Jim Grosbachstatic void printDebugLoc(DebugLoc DL, const MachineFunction *MF, 1418da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel raw_ostream &CommentOS) { 1419da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel const LLVMContext &Ctx = MF->getFunction()->getContext(); 1420da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel if (!DL.isUnknown()) { // Print source line info. 1421da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel DIScope Scope(DL.getScope(Ctx)); 1422da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel // Omit the directory, because it's likely to be long and uninteresting. 1423da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel if (Scope.Verify()) 1424da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel CommentOS << Scope.getFilename(); 1425da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel else 1426da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel CommentOS << "<unknown>"; 1427da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel CommentOS << ':' << DL.getLine(); 1428da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel if (DL.getCol() != 0) 1429da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel CommentOS << ':' << DL.getCol(); 1430da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel DebugLoc InlinedAtDL = DebugLoc::getFromDILocation(DL.getInlinedAt(Ctx)); 1431da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel if (!InlinedAtDL.isUnknown()) { 1432da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel CommentOS << " @[ "; 1433da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel printDebugLoc(InlinedAtDL, MF, CommentOS); 1434da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel CommentOS << " ]"; 1435da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel } 1436da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel } 1437da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel} 1438da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel 14395ca6bd14a00ba5310ce1a632d3a0cc8f8af31433Mon P Wangvoid MachineInstr::print(raw_ostream &OS, const TargetMachine *TM) const { 144080f6c5898113806130975fd56d24929b06bf54f8Dan Gohman // We can be a bit tidier if we know the TargetMachine and/or MachineFunction. 144180f6c5898113806130975fd56d24929b06bf54f8Dan Gohman const MachineFunction *MF = 0; 1442a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen const MachineRegisterInfo *MRI = 0; 144380f6c5898113806130975fd56d24929b06bf54f8Dan Gohman if (const MachineBasicBlock *MBB = getParent()) { 144480f6c5898113806130975fd56d24929b06bf54f8Dan Gohman MF = MBB->getParent(); 144580f6c5898113806130975fd56d24929b06bf54f8Dan Gohman if (!TM && MF) 144680f6c5898113806130975fd56d24929b06bf54f8Dan Gohman TM = &MF->getTarget(); 1447a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen if (MF) 1448a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen MRI = &MF->getRegInfo(); 144980f6c5898113806130975fd56d24929b06bf54f8Dan Gohman } 14500ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman 1451a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen // Save a list of virtual registers. 1452a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen SmallVector<unsigned, 8> VirtRegs; 1453a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen 14540ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman // Print explicitly defined operands on the left of an assignment syntax. 145580f6c5898113806130975fd56d24929b06bf54f8Dan Gohman unsigned StartOp = 0, e = getNumOperands(); 14560ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman for (; StartOp < e && getOperand(StartOp).isReg() && 14570ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman getOperand(StartOp).isDef() && 14580ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman !getOperand(StartOp).isImplicit(); 14590ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman ++StartOp) { 14600ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman if (StartOp != 0) OS << ", "; 14610ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman getOperand(StartOp).print(OS, TM); 1462a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen unsigned Reg = getOperand(StartOp).getReg(); 1463c9df025e33ac435adb3b3318d237c36ca7cec659Jakob Stoklund Olesen if (TargetRegisterInfo::isVirtualRegister(Reg)) 1464a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen VirtRegs.push_back(Reg); 14656a592271fb2946a0704b06fd66199987cdd40b3cChris Lattner } 1466b140762a45d21aaed054f15adaff0fc2274d939dTanya Lattner 14670ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman if (StartOp != 0) 14680ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman OS << " = "; 14690ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman 14700ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman // Print the opcode name. 1471c667ba69ac342563c0886e20509e68705d78a0a5Benjamin Kramer if (TM && TM->getInstrInfo()) 1472c667ba69ac342563c0886e20509e68705d78a0a5Benjamin Kramer OS << TM->getInstrInfo()->getName(getOpcode()); 1473c667ba69ac342563c0886e20509e68705d78a0a5Benjamin Kramer else 1474c667ba69ac342563c0886e20509e68705d78a0a5Benjamin Kramer OS << "UNKNOWN"; 1475edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 14760ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman // Print the rest of the operands. 147780f6c5898113806130975fd56d24929b06bf54f8Dan Gohman bool OmittedAnyCallClobbers = false; 147880f6c5898113806130975fd56d24929b06bf54f8Dan Gohman bool FirstOp = true; 14797a2ecd3f99ae4dede7e8c1984c2a08984be69363Jakob Stoklund Olesen unsigned AsmDescOp = ~0u; 14807a2ecd3f99ae4dede7e8c1984c2a08984be69363Jakob Stoklund Olesen unsigned AsmOpCount = 0; 1481c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng 14823627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen if (isInlineAsm() && e >= InlineAsm::MIOp_FirstOperand) { 1483c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng // Print asm string. 1484c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng OS << " "; 1485c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng getOperand(InlineAsm::MIOp_AsmString).print(OS, TM); 1486c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng 1487c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng // Print HasSideEffects, IsAlignStack 1488c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng unsigned ExtraInfo = getOperand(InlineAsm::MIOp_ExtraInfo).getImm(); 1489c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng if (ExtraInfo & InlineAsm::Extra_HasSideEffects) 1490c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng OS << " [sideeffect]"; 1491c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng if (ExtraInfo & InlineAsm::Extra_IsAlignStack) 1492c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng OS << " [alignstack]"; 149377fffa6fdd389ad6d70a42b36c1c36c768c2de41Chad Rosier if (getInlineAsmDialect() == InlineAsm::AD_ATT) 1494576cd11ab8035d4240f7e6ea8d7c6c2e45154f86Chad Rosier OS << " [attdialect]"; 149577fffa6fdd389ad6d70a42b36c1c36c768c2de41Chad Rosier if (getInlineAsmDialect() == InlineAsm::AD_Intel) 1496576cd11ab8035d4240f7e6ea8d7c6c2e45154f86Chad Rosier OS << " [inteldialect]"; 1497c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng 14987a2ecd3f99ae4dede7e8c1984c2a08984be69363Jakob Stoklund Olesen StartOp = AsmDescOp = InlineAsm::MIOp_FirstOperand; 1499c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng FirstOp = false; 1500c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng } 1501c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng 1502c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng 15036a592271fb2946a0704b06fd66199987cdd40b3cChris Lattner for (unsigned i = StartOp, e = getNumOperands(); i != e; ++i) { 150480f6c5898113806130975fd56d24929b06bf54f8Dan Gohman const MachineOperand &MO = getOperand(i); 150580f6c5898113806130975fd56d24929b06bf54f8Dan Gohman 1506c9df025e33ac435adb3b3318d237c36ca7cec659Jakob Stoklund Olesen if (MO.isReg() && TargetRegisterInfo::isVirtualRegister(MO.getReg())) 1507a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen VirtRegs.push_back(MO.getReg()); 1508a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen 150980f6c5898113806130975fd56d24929b06bf54f8Dan Gohman // Omit call-clobbered registers which aren't used anywhere. This makes 151080f6c5898113806130975fd56d24929b06bf54f8Dan Gohman // call instructions much less noisy on targets where calls clobber lots 151180f6c5898113806130975fd56d24929b06bf54f8Dan Gohman // of registers. Don't rely on MO.isDead() because we may be called before 151280f6c5898113806130975fd56d24929b06bf54f8Dan Gohman // LiveVariables is run, or we may be looking at a non-allocatable reg. 15135a96b3dad2f634c9081c8b2b6c2575441dc5a2bdEvan Cheng if (MF && isCall() && 151480f6c5898113806130975fd56d24929b06bf54f8Dan Gohman MO.isReg() && MO.isImplicit() && MO.isDef()) { 151580f6c5898113806130975fd56d24929b06bf54f8Dan Gohman unsigned Reg = MO.getReg(); 1516c9df025e33ac435adb3b3318d237c36ca7cec659Jakob Stoklund Olesen if (TargetRegisterInfo::isPhysicalRegister(Reg)) { 151780f6c5898113806130975fd56d24929b06bf54f8Dan Gohman const MachineRegisterInfo &MRI = MF->getRegInfo(); 151880f6c5898113806130975fd56d24929b06bf54f8Dan Gohman if (MRI.use_empty(Reg) && !MRI.isLiveOut(Reg)) { 151980f6c5898113806130975fd56d24929b06bf54f8Dan Gohman bool HasAliasLive = false; 1520396618b43a85e12d290a90b181c6af5d7c0c5f11Jakob Stoklund Olesen for (MCRegAliasIterator AI(Reg, TM->getRegisterInfo(), true); 1521396618b43a85e12d290a90b181c6af5d7c0c5f11Jakob Stoklund Olesen AI.isValid(); ++AI) { 1522396618b43a85e12d290a90b181c6af5d7c0c5f11Jakob Stoklund Olesen unsigned AliasReg = *AI; 152380f6c5898113806130975fd56d24929b06bf54f8Dan Gohman if (!MRI.use_empty(AliasReg) || MRI.isLiveOut(AliasReg)) { 152480f6c5898113806130975fd56d24929b06bf54f8Dan Gohman HasAliasLive = true; 152580f6c5898113806130975fd56d24929b06bf54f8Dan Gohman break; 152680f6c5898113806130975fd56d24929b06bf54f8Dan Gohman } 1527396618b43a85e12d290a90b181c6af5d7c0c5f11Jakob Stoklund Olesen } 152880f6c5898113806130975fd56d24929b06bf54f8Dan Gohman if (!HasAliasLive) { 152980f6c5898113806130975fd56d24929b06bf54f8Dan Gohman OmittedAnyCallClobbers = true; 153080f6c5898113806130975fd56d24929b06bf54f8Dan Gohman continue; 153180f6c5898113806130975fd56d24929b06bf54f8Dan Gohman } 153280f6c5898113806130975fd56d24929b06bf54f8Dan Gohman } 153380f6c5898113806130975fd56d24929b06bf54f8Dan Gohman } 153480f6c5898113806130975fd56d24929b06bf54f8Dan Gohman } 153580f6c5898113806130975fd56d24929b06bf54f8Dan Gohman 153680f6c5898113806130975fd56d24929b06bf54f8Dan Gohman if (FirstOp) FirstOp = false; else OS << ","; 15376a592271fb2946a0704b06fd66199987cdd40b3cChris Lattner OS << " "; 1538b1bb4afbc7d801f9875be135c428b6f05511db5dJakob Stoklund Olesen if (i < getDesc().NumOperands) { 1539e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng const MCOperandInfo &MCOI = getDesc().OpInfo[i]; 1540e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng if (MCOI.isPredicate()) 1541b1bb4afbc7d801f9875be135c428b6f05511db5dJakob Stoklund Olesen OS << "pred:"; 1542e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng if (MCOI.isOptionalDef()) 1543b1bb4afbc7d801f9875be135c428b6f05511db5dJakob Stoklund Olesen OS << "opt:"; 1544b1bb4afbc7d801f9875be135c428b6f05511db5dJakob Stoklund Olesen } 154559b3655564bb6717b296ca9e71f13bf7db45b590Evan Cheng if (isDebugValue() && MO.isMetadata()) { 154659b3655564bb6717b296ca9e71f13bf7db45b590Evan Cheng // Pretty print DBG_VALUE instructions. 154759b3655564bb6717b296ca9e71f13bf7db45b590Evan Cheng const MDNode *MD = MO.getMetadata(); 154859b3655564bb6717b296ca9e71f13bf7db45b590Evan Cheng if (const MDString *MDS = dyn_cast<MDString>(MD->getOperand(2))) 154959b3655564bb6717b296ca9e71f13bf7db45b590Evan Cheng OS << "!\"" << MDS->getString() << '\"'; 155059b3655564bb6717b296ca9e71f13bf7db45b590Evan Cheng else 155159b3655564bb6717b296ca9e71f13bf7db45b590Evan Cheng MO.print(OS, TM); 1552b1e11455d1cf4df081a9593660d194c1a53b4334Jakob Stoklund Olesen } else if (TM && (isInsertSubreg() || isRegSequence()) && MO.isImm()) { 1553b1e11455d1cf4df081a9593660d194c1a53b4334Jakob Stoklund Olesen OS << TM->getRegisterInfo()->getSubRegIndexName(MO.getImm()); 15547a2ecd3f99ae4dede7e8c1984c2a08984be69363Jakob Stoklund Olesen } else if (i == AsmDescOp && MO.isImm()) { 15557a2ecd3f99ae4dede7e8c1984c2a08984be69363Jakob Stoklund Olesen // Pretty print the inline asm operand descriptor. 15567a2ecd3f99ae4dede7e8c1984c2a08984be69363Jakob Stoklund Olesen OS << '$' << AsmOpCount++; 15577a2ecd3f99ae4dede7e8c1984c2a08984be69363Jakob Stoklund Olesen unsigned Flag = MO.getImm(); 15587a2ecd3f99ae4dede7e8c1984c2a08984be69363Jakob Stoklund Olesen switch (InlineAsm::getKind(Flag)) { 1559459b74b9644c4741d93fe73adc2b06ca6bdb366dJakob Stoklund Olesen case InlineAsm::Kind_RegUse: OS << ":[reguse"; break; 1560459b74b9644c4741d93fe73adc2b06ca6bdb366dJakob Stoklund Olesen case InlineAsm::Kind_RegDef: OS << ":[regdef"; break; 1561459b74b9644c4741d93fe73adc2b06ca6bdb366dJakob Stoklund Olesen case InlineAsm::Kind_RegDefEarlyClobber: OS << ":[regdef-ec"; break; 1562459b74b9644c4741d93fe73adc2b06ca6bdb366dJakob Stoklund Olesen case InlineAsm::Kind_Clobber: OS << ":[clobber"; break; 1563459b74b9644c4741d93fe73adc2b06ca6bdb366dJakob Stoklund Olesen case InlineAsm::Kind_Imm: OS << ":[imm"; break; 1564459b74b9644c4741d93fe73adc2b06ca6bdb366dJakob Stoklund Olesen case InlineAsm::Kind_Mem: OS << ":[mem"; break; 1565459b74b9644c4741d93fe73adc2b06ca6bdb366dJakob Stoklund Olesen default: OS << ":[??" << InlineAsm::getKind(Flag); break; 15667a2ecd3f99ae4dede7e8c1984c2a08984be69363Jakob Stoklund Olesen } 15677a2ecd3f99ae4dede7e8c1984c2a08984be69363Jakob Stoklund Olesen 1568459b74b9644c4741d93fe73adc2b06ca6bdb366dJakob Stoklund Olesen unsigned RCID = 0; 15693821b1885e13dcdda6aa2853f1317d3288256685Nick Lewycky if (InlineAsm::hasRegClassConstraint(Flag, RCID)) { 1570459b74b9644c4741d93fe73adc2b06ca6bdb366dJakob Stoklund Olesen if (TM) 1571459b74b9644c4741d93fe73adc2b06ca6bdb366dJakob Stoklund Olesen OS << ':' << TM->getRegisterInfo()->getRegClass(RCID)->getName(); 1572459b74b9644c4741d93fe73adc2b06ca6bdb366dJakob Stoklund Olesen else 1573459b74b9644c4741d93fe73adc2b06ca6bdb366dJakob Stoklund Olesen OS << ":RC" << RCID; 15743821b1885e13dcdda6aa2853f1317d3288256685Nick Lewycky } 1575459b74b9644c4741d93fe73adc2b06ca6bdb366dJakob Stoklund Olesen 15767a2ecd3f99ae4dede7e8c1984c2a08984be69363Jakob Stoklund Olesen unsigned TiedTo = 0; 15777a2ecd3f99ae4dede7e8c1984c2a08984be69363Jakob Stoklund Olesen if (InlineAsm::isUseOperandTiedToDef(Flag, TiedTo)) 1578459b74b9644c4741d93fe73adc2b06ca6bdb366dJakob Stoklund Olesen OS << " tiedto:$" << TiedTo; 1579459b74b9644c4741d93fe73adc2b06ca6bdb366dJakob Stoklund Olesen 1580459b74b9644c4741d93fe73adc2b06ca6bdb366dJakob Stoklund Olesen OS << ']'; 15817a2ecd3f99ae4dede7e8c1984c2a08984be69363Jakob Stoklund Olesen 15827a2ecd3f99ae4dede7e8c1984c2a08984be69363Jakob Stoklund Olesen // Compute the index of the next operand descriptor. 15837a2ecd3f99ae4dede7e8c1984c2a08984be69363Jakob Stoklund Olesen AsmDescOp += 1 + InlineAsm::getNumOperandRegisters(Flag); 158459b3655564bb6717b296ca9e71f13bf7db45b590Evan Cheng } else 158559b3655564bb6717b296ca9e71f13bf7db45b590Evan Cheng MO.print(OS, TM); 158680f6c5898113806130975fd56d24929b06bf54f8Dan Gohman } 158780f6c5898113806130975fd56d24929b06bf54f8Dan Gohman 158880f6c5898113806130975fd56d24929b06bf54f8Dan Gohman // Briefly indicate whether any call clobbers were omitted. 158980f6c5898113806130975fd56d24929b06bf54f8Dan Gohman if (OmittedAnyCallClobbers) { 1590164558e59c2a321bf670e31a7bdde0d38d79bb67Bill Wendling if (!FirstOp) OS << ","; 159180f6c5898113806130975fd56d24929b06bf54f8Dan Gohman OS << " ..."; 15921049164aa6b06d91d9b3b557a9a213eaf3f6319aChris Lattner } 1593edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 15940ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman bool HaveSemi = false; 15956dd97471c43805b3febf598d50498a09a02e93f4Anton Korobeynikov if (Flags) { 15966dd97471c43805b3febf598d50498a09a02e93f4Anton Korobeynikov if (!HaveSemi) OS << ";"; HaveSemi = true; 15976dd97471c43805b3febf598d50498a09a02e93f4Anton Korobeynikov OS << " flags: "; 15986dd97471c43805b3febf598d50498a09a02e93f4Anton Korobeynikov 15996dd97471c43805b3febf598d50498a09a02e93f4Anton Korobeynikov if (Flags & FrameSetup) 16006dd97471c43805b3febf598d50498a09a02e93f4Anton Korobeynikov OS << "FrameSetup"; 16016dd97471c43805b3febf598d50498a09a02e93f4Anton Korobeynikov } 16026dd97471c43805b3febf598d50498a09a02e93f4Anton Korobeynikov 16038e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman if (!memoperands_empty()) { 16040ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman if (!HaveSemi) OS << ";"; HaveSemi = true; 16050ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman 16060ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman OS << " mem:"; 1607c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman for (mmo_iterator i = memoperands_begin(), e = memoperands_end(); 1608c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman i != e; ++i) { 1609c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman OS << **i; 1610ee56c42168f6c4271593f6018c4409b6a5910302Oscar Fuentes if (llvm::next(i) != e) 1611cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman OS << " "; 161269de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman } 161369de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman } 161469de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman 1615a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen // Print the regclass of any virtual registers encountered. 1616a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen if (MRI && !VirtRegs.empty()) { 1617a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen if (!HaveSemi) OS << ";"; HaveSemi = true; 1618a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen for (unsigned i = 0; i != VirtRegs.size(); ++i) { 1619a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen const TargetRegisterClass *RC = MRI->getRegClass(VirtRegs[i]); 16204314268128be6d54c9a7f0709680e5a5b40f3ab3Jakob Stoklund Olesen OS << " " << RC->getName() << ':' << PrintReg(VirtRegs[i]); 1621a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen for (unsigned j = i+1; j != VirtRegs.size();) { 1622a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen if (MRI->getRegClass(VirtRegs[j]) != RC) { 1623a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen ++j; 1624a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen continue; 1625a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen } 1626a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen if (VirtRegs[i] != VirtRegs[j]) 16274314268128be6d54c9a7f0709680e5a5b40f3ab3Jakob Stoklund Olesen OS << "," << PrintReg(VirtRegs[j]); 1628a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen VirtRegs.erase(VirtRegs.begin()+j); 1629a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen } 1630a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen } 1631a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen } 1632a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen 16336dd97471c43805b3febf598d50498a09a02e93f4Anton Korobeynikov // Print debug location information. 16344d3586dd230a3b16018da138404dbb87faf2008dDevang Patel if (isDebugValue() && getOperand(e - 1).isMetadata()) { 16354d3586dd230a3b16018da138404dbb87faf2008dDevang Patel if (!HaveSemi) OS << ";"; HaveSemi = true; 16364d3586dd230a3b16018da138404dbb87faf2008dDevang Patel DIVariable DV(getOperand(e - 1).getMetadata()); 16374d3586dd230a3b16018da138404dbb87faf2008dDevang Patel OS << " line no:" << DV.getLineNumber(); 16384d3586dd230a3b16018da138404dbb87faf2008dDevang Patel if (MDNode *InlinedAt = DV.getInlinedAt()) { 16394d3586dd230a3b16018da138404dbb87faf2008dDevang Patel DebugLoc InlinedAtDL = DebugLoc::getFromDILocation(InlinedAt); 16404d3586dd230a3b16018da138404dbb87faf2008dDevang Patel if (!InlinedAtDL.isUnknown()) { 16414d3586dd230a3b16018da138404dbb87faf2008dDevang Patel OS << " inlined @[ "; 16424d3586dd230a3b16018da138404dbb87faf2008dDevang Patel printDebugLoc(InlinedAtDL, MF, OS); 16434d3586dd230a3b16018da138404dbb87faf2008dDevang Patel OS << " ]"; 16444d3586dd230a3b16018da138404dbb87faf2008dDevang Patel } 16454d3586dd230a3b16018da138404dbb87faf2008dDevang Patel } 16464d3586dd230a3b16018da138404dbb87faf2008dDevang Patel } else if (!debugLoc.isUnknown() && MF) { 16476dd97471c43805b3febf598d50498a09a02e93f4Anton Korobeynikov if (!HaveSemi) OS << ";"; HaveSemi = true; 164875ae593a2750f9f7995980c3a03c0d972985e394Dan Gohman OS << " dbg:"; 1649da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel printDebugLoc(debugLoc, MF, OS); 1650b5ef27375731ece13a8ae0102b3f3233351036afBill Wendling } 1651b5ef27375731ece13a8ae0102b3f3233351036afBill Wendling 16526dd97471c43805b3febf598d50498a09a02e93f4Anton Korobeynikov OS << '\n'; 16531049164aa6b06d91d9b3b557a9a213eaf3f6319aChris Lattner} 16541049164aa6b06d91d9b3b557a9a213eaf3f6319aChris Lattner 1655b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Andersonbool MachineInstr::addRegisterKilled(unsigned IncomingReg, 16566f0d024a534af18d9e60b3ea757376cd8a3a980eDan Gohman const TargetRegisterInfo *RegInfo, 1657b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson bool AddIfNotFound) { 16589b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng bool isPhysReg = TargetRegisterInfo::isPhysicalRegister(IncomingReg); 1659396618b43a85e12d290a90b181c6af5d7c0c5f11Jakob Stoklund Olesen bool hasAliases = isPhysReg && 1660396618b43a85e12d290a90b181c6af5d7c0c5f11Jakob Stoklund Olesen MCRegAliasIterator(IncomingReg, RegInfo, false).isValid(); 16613f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman bool Found = false; 16629b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng SmallVector<unsigned,4> DeadOps; 16634a23d72ec21d1bdfda69fd16c9fc10cec39f1fedBill Wendling for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 16644a23d72ec21d1bdfda69fd16c9fc10cec39f1fedBill Wendling MachineOperand &MO = getOperand(i); 1665efb8e3e113cbf359d6a838c3b37fedc8305d19bbJakob Stoklund Olesen if (!MO.isReg() || !MO.isUse() || MO.isUndef()) 16669b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng continue; 16679b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng unsigned Reg = MO.getReg(); 16689b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng if (!Reg) 16699b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng continue; 16704a23d72ec21d1bdfda69fd16c9fc10cec39f1fedBill Wendling 16719b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng if (Reg == IncomingReg) { 16723f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman if (!Found) { 16733f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman if (MO.isKill()) 16743f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman // The register is already marked kill. 16753f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman return true; 1676ece48185168ab130b1777feb86d9e3fe80eb87d2Jakob Stoklund Olesen if (isPhysReg && isRegTiedToDefOperand(i)) 1677ece48185168ab130b1777feb86d9e3fe80eb87d2Jakob Stoklund Olesen // Two-address uses of physregs must not be marked kill. 1678ece48185168ab130b1777feb86d9e3fe80eb87d2Jakob Stoklund Olesen return true; 16793f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman MO.setIsKill(); 16803f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman Found = true; 16813f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman } 16823f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman } else if (hasAliases && MO.isKill() && 16833f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman TargetRegisterInfo::isPhysicalRegister(Reg)) { 16849b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng // A super-register kill already exists. 16859b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng if (RegInfo->isSuperRegister(IncomingReg, Reg)) 16862ebc11ac6d19ec806da97bd4f2d49a27932d09fbDan Gohman return true; 16872ebc11ac6d19ec806da97bd4f2d49a27932d09fbDan Gohman if (RegInfo->isSubRegister(IncomingReg, Reg)) 16889b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng DeadOps.push_back(i); 1689b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson } 1690b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson } 1691b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson 16929b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng // Trim unneeded kill operands. 16939b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng while (!DeadOps.empty()) { 16949b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng unsigned OpIdx = DeadOps.back(); 16959b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng if (getOperand(OpIdx).isImplicit()) 16969b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng RemoveOperand(OpIdx); 16979b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng else 16989b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng getOperand(OpIdx).setIsKill(false); 16999b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng DeadOps.pop_back(); 17009b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng } 17019b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng 17024a23d72ec21d1bdfda69fd16c9fc10cec39f1fedBill Wendling // If not found, this means an alias of one of the operands is killed. Add a 1703b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson // new implicit operand if required. 17043f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman if (!Found && AddIfNotFound) { 17054a23d72ec21d1bdfda69fd16c9fc10cec39f1fedBill Wendling addOperand(MachineOperand::CreateReg(IncomingReg, 17064a23d72ec21d1bdfda69fd16c9fc10cec39f1fedBill Wendling false /*IsDef*/, 17074a23d72ec21d1bdfda69fd16c9fc10cec39f1fedBill Wendling true /*IsImp*/, 17084a23d72ec21d1bdfda69fd16c9fc10cec39f1fedBill Wendling true /*IsKill*/)); 1709b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson return true; 1710b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson } 17113f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman return Found; 1712b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson} 1713b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson 17141a96c914315b0286d84c507d696484e2c95875a4Jakob Stoklund Olesenvoid MachineInstr::clearRegisterKills(unsigned Reg, 17151a96c914315b0286d84c507d696484e2c95875a4Jakob Stoklund Olesen const TargetRegisterInfo *RegInfo) { 17161a96c914315b0286d84c507d696484e2c95875a4Jakob Stoklund Olesen if (!TargetRegisterInfo::isPhysicalRegister(Reg)) 17171a96c914315b0286d84c507d696484e2c95875a4Jakob Stoklund Olesen RegInfo = 0; 17181a96c914315b0286d84c507d696484e2c95875a4Jakob Stoklund Olesen for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 17191a96c914315b0286d84c507d696484e2c95875a4Jakob Stoklund Olesen MachineOperand &MO = getOperand(i); 17201a96c914315b0286d84c507d696484e2c95875a4Jakob Stoklund Olesen if (!MO.isReg() || !MO.isUse() || !MO.isKill()) 17211a96c914315b0286d84c507d696484e2c95875a4Jakob Stoklund Olesen continue; 17221a96c914315b0286d84c507d696484e2c95875a4Jakob Stoklund Olesen unsigned OpReg = MO.getReg(); 17231a96c914315b0286d84c507d696484e2c95875a4Jakob Stoklund Olesen if (OpReg == Reg || (RegInfo && RegInfo->isSuperRegister(Reg, OpReg))) 17241a96c914315b0286d84c507d696484e2c95875a4Jakob Stoklund Olesen MO.setIsKill(false); 17251a96c914315b0286d84c507d696484e2c95875a4Jakob Stoklund Olesen } 17261a96c914315b0286d84c507d696484e2c95875a4Jakob Stoklund Olesen} 17271a96c914315b0286d84c507d696484e2c95875a4Jakob Stoklund Olesen 1728b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Andersonbool MachineInstr::addRegisterDead(unsigned IncomingReg, 17296f0d024a534af18d9e60b3ea757376cd8a3a980eDan Gohman const TargetRegisterInfo *RegInfo, 1730b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson bool AddIfNotFound) { 17319b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng bool isPhysReg = TargetRegisterInfo::isPhysicalRegister(IncomingReg); 1732396618b43a85e12d290a90b181c6af5d7c0c5f11Jakob Stoklund Olesen bool hasAliases = isPhysReg && 1733396618b43a85e12d290a90b181c6af5d7c0c5f11Jakob Stoklund Olesen MCRegAliasIterator(IncomingReg, RegInfo, false).isValid(); 17343f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman bool Found = false; 17359b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng SmallVector<unsigned,4> DeadOps; 1736b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 1737b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson MachineOperand &MO = getOperand(i); 1738d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (!MO.isReg() || !MO.isDef()) 17399b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng continue; 17409b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng unsigned Reg = MO.getReg(); 17413f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman if (!Reg) 17423f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman continue; 17433f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman 17449b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng if (Reg == IncomingReg) { 1745b793bc1ccabef36b3223bae69f5e94a8e98d22ebJakob Stoklund Olesen MO.setIsDead(); 1746b793bc1ccabef36b3223bae69f5e94a8e98d22ebJakob Stoklund Olesen Found = true; 17473f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman } else if (hasAliases && MO.isDead() && 17483f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman TargetRegisterInfo::isPhysicalRegister(Reg)) { 17499b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng // There exists a super-register that's marked dead. 17509b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng if (RegInfo->isSuperRegister(IncomingReg, Reg)) 17512ebc11ac6d19ec806da97bd4f2d49a27932d09fbDan Gohman return true; 1752275fd2523edd30e75af6398c25d47e94cc32f150Jakob Stoklund Olesen if (RegInfo->isSubRegister(IncomingReg, Reg)) 17539b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng DeadOps.push_back(i); 1754b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson } 1755b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson } 1756b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson 17579b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng // Trim unneeded dead operands. 17589b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng while (!DeadOps.empty()) { 17599b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng unsigned OpIdx = DeadOps.back(); 17609b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng if (getOperand(OpIdx).isImplicit()) 17619b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng RemoveOperand(OpIdx); 17629b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng else 17639b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng getOperand(OpIdx).setIsDead(false); 17649b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng DeadOps.pop_back(); 17659b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng } 17669b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng 17673f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman // If not found, this means an alias of one of the operands is dead. Add a 17683f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman // new implicit operand if required. 176931530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner if (Found || !AddIfNotFound) 177031530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner return Found; 1771ee61d67c2f1105e23b2ea5110389f3b7b713b504Jim Grosbach 177231530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner addOperand(MachineOperand::CreateReg(IncomingReg, 177331530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner true /*IsDef*/, 177431530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner true /*IsImp*/, 177531530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner false /*IsKill*/, 177631530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner true /*IsDead*/)); 177731530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner return true; 1778b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson} 17798efadf94b568c08de3ff8ce35fd904a935387406Jakob Stoklund Olesen 17808efadf94b568c08de3ff8ce35fd904a935387406Jakob Stoklund Olesenvoid MachineInstr::addRegisterDefined(unsigned IncomingReg, 17818efadf94b568c08de3ff8ce35fd904a935387406Jakob Stoklund Olesen const TargetRegisterInfo *RegInfo) { 178263e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen if (TargetRegisterInfo::isPhysicalRegister(IncomingReg)) { 178363e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen MachineOperand *MO = findRegisterDefOperand(IncomingReg, false, RegInfo); 178463e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen if (MO) 178563e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen return; 178663e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen } else { 178763e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 178863e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen const MachineOperand &MO = getOperand(i); 178963e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen if (MO.isReg() && MO.getReg() == IncomingReg && MO.isDef() && 179063e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen MO.getSubReg() == 0) 179163e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen return; 179263e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen } 179363e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen } 179463e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen addOperand(MachineOperand::CreateReg(IncomingReg, 179563e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen true /*IsDef*/, 179663e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen true /*IsImp*/)); 17978efadf94b568c08de3ff8ce35fd904a935387406Jakob Stoklund Olesen} 179867eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Cheng 1799a37818dbb119bda75273f16b8484732e742cdbb7Jakob Stoklund Olesenvoid MachineInstr::setPhysRegsDeadExcept(ArrayRef<unsigned> UsedRegs, 1800db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman const TargetRegisterInfo &TRI) { 180177180e0b402fff318cffd89a2251e46b3dce4064Jakob Stoklund Olesen bool HasRegMask = false; 1802db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 1803db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman MachineOperand &MO = getOperand(i); 180477180e0b402fff318cffd89a2251e46b3dce4064Jakob Stoklund Olesen if (MO.isRegMask()) { 180577180e0b402fff318cffd89a2251e46b3dce4064Jakob Stoklund Olesen HasRegMask = true; 180677180e0b402fff318cffd89a2251e46b3dce4064Jakob Stoklund Olesen continue; 180777180e0b402fff318cffd89a2251e46b3dce4064Jakob Stoklund Olesen } 1808db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman if (!MO.isReg() || !MO.isDef()) continue; 1809db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman unsigned Reg = MO.getReg(); 181059cb77fb11ec547f60ef0ff4a8ccf3bd8007ae46Jakob Stoklund Olesen if (!TargetRegisterInfo::isPhysicalRegister(Reg)) continue; 1811db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman bool Dead = true; 1812a37818dbb119bda75273f16b8484732e742cdbb7Jakob Stoklund Olesen for (ArrayRef<unsigned>::iterator I = UsedRegs.begin(), E = UsedRegs.end(); 1813a37818dbb119bda75273f16b8484732e742cdbb7Jakob Stoklund Olesen I != E; ++I) 1814db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman if (TRI.regsOverlap(*I, Reg)) { 1815db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman Dead = false; 1816db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman break; 1817db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman } 1818db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman // If there are no uses, including partial uses, the def is dead. 1819db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman if (Dead) MO.setIsDead(); 1820db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman } 182177180e0b402fff318cffd89a2251e46b3dce4064Jakob Stoklund Olesen 182277180e0b402fff318cffd89a2251e46b3dce4064Jakob Stoklund Olesen // This is a call with a register mask operand. 182377180e0b402fff318cffd89a2251e46b3dce4064Jakob Stoklund Olesen // Mask clobbers are always dead, so add defs for the non-dead defines. 182477180e0b402fff318cffd89a2251e46b3dce4064Jakob Stoklund Olesen if (HasRegMask) 182577180e0b402fff318cffd89a2251e46b3dce4064Jakob Stoklund Olesen for (ArrayRef<unsigned>::iterator I = UsedRegs.begin(), E = UsedRegs.end(); 182677180e0b402fff318cffd89a2251e46b3dce4064Jakob Stoklund Olesen I != E; ++I) 182777180e0b402fff318cffd89a2251e46b3dce4064Jakob Stoklund Olesen addRegisterDefined(*I, &TRI); 1828db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman} 1829db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman 183067eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Chengunsigned 183167eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan ChengMachineInstrExpressionTrait::getHashValue(const MachineInstr* const &MI) { 1832fc22625eb04d39b0de77090702cf50a9bcda3ddbChandler Carruth // Build up a buffer of hash code components. 1833fc22625eb04d39b0de77090702cf50a9bcda3ddbChandler Carruth SmallVector<size_t, 8> HashComponents; 1834fc22625eb04d39b0de77090702cf50a9bcda3ddbChandler Carruth HashComponents.reserve(MI->getNumOperands() + 1); 1835fc22625eb04d39b0de77090702cf50a9bcda3ddbChandler Carruth HashComponents.push_back(MI->getOpcode()); 183667eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Cheng for (unsigned i = 0, e = MI->getNumOperands(); i != e; ++i) { 183767eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Cheng const MachineOperand &MO = MI->getOperand(i); 1838d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth if (MO.isReg() && MO.isDef() && 1839d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth TargetRegisterInfo::isVirtualRegister(MO.getReg())) 1840d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth continue; // Skip virtual register defs. 1841d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth 1842d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth HashComponents.push_back(hash_value(MO)); 1843fc22625eb04d39b0de77090702cf50a9bcda3ddbChandler Carruth } 1844fc22625eb04d39b0de77090702cf50a9bcda3ddbChandler Carruth return hash_combine_range(HashComponents.begin(), HashComponents.end()); 184567eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Cheng} 1846d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen 1847d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesenvoid MachineInstr::emitError(StringRef Msg) const { 1848d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen // Find the source location cookie. 1849d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen unsigned LocCookie = 0; 1850d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen const MDNode *LocMD = 0; 1851d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen for (unsigned i = getNumOperands(); i != 0; --i) { 1852d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen if (getOperand(i-1).isMetadata() && 1853d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen (LocMD = getOperand(i-1).getMetadata()) && 1854d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen LocMD->getNumOperands() != 0) { 1855d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen if (const ConstantInt *CI = dyn_cast<ConstantInt>(LocMD->getOperand(0))) { 1856d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen LocCookie = CI->getZExtValue(); 1857d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen break; 1858d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen } 1859d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen } 1860d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen } 1861d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen 1862d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen if (const MachineBasicBlock *MBB = getParent()) 1863d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen if (const MachineFunction *MF = MBB->getParent()) 1864d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen return MF->getMMI().getModule()->getContext().emitError(LocCookie, Msg); 1865d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen report_fatal_error(Msg); 1866d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen} 1867