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" 18506049f29f4f202a8e45feb916cc0264440a7f6dEvan Cheng#include "llvm/CodeGen/MachineConstantPool.h" 198517e1f0beea9b5e47974f083396d53294c390adChris Lattner#include "llvm/CodeGen/MachineFunction.h" 20c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman#include "llvm/CodeGen/MachineMemOperand.h" 21d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen#include "llvm/CodeGen/MachineModuleInfo.h" 2262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner#include "llvm/CodeGen/MachineRegisterInfo.h" 2369de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman#include "llvm/CodeGen/PseudoSourceValue.h" 240b8c9a80f20772c3793201ab5b251d3520b9cea3Chandler Carruth#include "llvm/IR/Constants.h" 2536b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines#include "llvm/IR/DebugInfo.h" 260b8c9a80f20772c3793201ab5b251d3520b9cea3Chandler Carruth#include "llvm/IR/Function.h" 270b8c9a80f20772c3793201ab5b251d3520b9cea3Chandler Carruth#include "llvm/IR/InlineAsm.h" 280b8c9a80f20772c3793201ab5b251d3520b9cea3Chandler Carruth#include "llvm/IR/LLVMContext.h" 290b8c9a80f20772c3793201ab5b251d3520b9cea3Chandler Carruth#include "llvm/IR/Metadata.h" 300b8c9a80f20772c3793201ab5b251d3520b9cea3Chandler Carruth#include "llvm/IR/Module.h" 310b8c9a80f20772c3793201ab5b251d3520b9cea3Chandler Carruth#include "llvm/IR/Type.h" 320b8c9a80f20772c3793201ab5b251d3520b9cea3Chandler Carruth#include "llvm/IR/Value.h" 33e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng#include "llvm/MC/MCInstrDesc.h" 3472aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner#include "llvm/MC/MCSymbol.h" 353b325334102144ec39910563eabebde434504564David Greene#include "llvm/Support/Debug.h" 36c25e7581b9b8088910da31702d4ca21c4734c6d7Torok Edwin#include "llvm/Support/ErrorHandling.h" 37ce42e404a26454f4332c2c350c75ad27bbbb16f7Dan Gohman#include "llvm/Support/MathExtras.h" 38edfb72c6288118ab9c900a560ded89dfaa107296Chris Lattner#include "llvm/Support/raw_ostream.h" 39d04a8d4b33ff316ca4cf961e06c9e312eff8e64fChandler Carruth#include "llvm/Target/TargetInstrInfo.h" 40d04a8d4b33ff316ca4cf961e06c9e312eff8e64fChandler Carruth#include "llvm/Target/TargetMachine.h" 41d04a8d4b33ff316ca4cf961e06c9e312eff8e64fChandler Carruth#include "llvm/Target/TargetRegisterInfo.h" 420742b59913a7760eb26f08121cd244a37e83e3b3Chris Lattnerusing namespace llvm; 43d0fde30ce850b78371fd1386338350591f9ff494Brian Gaeke 44f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner//===----------------------------------------------------------------------===// 45f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner// MachineOperand Implementation 46f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner//===----------------------------------------------------------------------===// 47f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner 4862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattnervoid MachineOperand::setReg(unsigned Reg) { 4962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (getReg() == Reg) return; // No change. 50ee61d67c2f1105e23b2ea5110389f3b7b713b504Jim Grosbach 5162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Otherwise, we have to change the register. If this operand is embedded 5262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // into a machine function, we need to update the old and new register's 5362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // use/def lists. 5462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (MachineInstr *MI = getParent()) 5562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (MachineBasicBlock *MBB = MI->getParent()) 5662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (MachineFunction *MF = MBB->getParent()) { 57ff2b99afc8cbc6cfa73181072888e0f9f07deb7eJakob Stoklund Olesen MachineRegisterInfo &MRI = MF->getRegInfo(); 58ff2b99afc8cbc6cfa73181072888e0f9f07deb7eJakob Stoklund Olesen MRI.removeRegOperandFromUseList(this); 592594746045258958673ebe42db2a27a4d05b0b73Jakob Stoklund Olesen SmallContents.RegNo = Reg; 60ff2b99afc8cbc6cfa73181072888e0f9f07deb7eJakob Stoklund Olesen MRI.addRegOperandToUseList(this); 6162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner return; 6262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 63ee61d67c2f1105e23b2ea5110389f3b7b713b504Jim Grosbach 6462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Otherwise, just change the register, no problem. :) 652594746045258958673ebe42db2a27a4d05b0b73Jakob Stoklund Olesen SmallContents.RegNo = Reg; 6662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner} 6762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 682da53370241fdd1b5c291483311b34e609f06c73Jakob Stoklund Olesenvoid MachineOperand::substVirtReg(unsigned Reg, unsigned SubIdx, 692da53370241fdd1b5c291483311b34e609f06c73Jakob Stoklund Olesen const TargetRegisterInfo &TRI) { 702da53370241fdd1b5c291483311b34e609f06c73Jakob Stoklund Olesen assert(TargetRegisterInfo::isVirtualRegister(Reg)); 712da53370241fdd1b5c291483311b34e609f06c73Jakob Stoklund Olesen if (SubIdx && getSubReg()) 722da53370241fdd1b5c291483311b34e609f06c73Jakob Stoklund Olesen SubIdx = TRI.composeSubRegIndices(SubIdx, getSubReg()); 732da53370241fdd1b5c291483311b34e609f06c73Jakob Stoklund Olesen setReg(Reg); 74a5135f60dd95275dcbc1123f866889151ced933dJakob Stoklund Olesen if (SubIdx) 75a5135f60dd95275dcbc1123f866889151ced933dJakob Stoklund Olesen setSubReg(SubIdx); 762da53370241fdd1b5c291483311b34e609f06c73Jakob Stoklund Olesen} 772da53370241fdd1b5c291483311b34e609f06c73Jakob Stoklund Olesen 782da53370241fdd1b5c291483311b34e609f06c73Jakob Stoklund Olesenvoid MachineOperand::substPhysReg(unsigned Reg, const TargetRegisterInfo &TRI) { 792da53370241fdd1b5c291483311b34e609f06c73Jakob Stoklund Olesen assert(TargetRegisterInfo::isPhysicalRegister(Reg)); 802da53370241fdd1b5c291483311b34e609f06c73Jakob Stoklund Olesen if (getSubReg()) { 812da53370241fdd1b5c291483311b34e609f06c73Jakob Stoklund Olesen Reg = TRI.getSubReg(Reg, getSubReg()); 82cf724f078623e786fc92335fdb0ec70b46f2e86dJakob Stoklund Olesen // Note that getSubReg() may return 0 if the sub-register doesn't exist. 83cf724f078623e786fc92335fdb0ec70b46f2e86dJakob Stoklund Olesen // That won't happen in legal code. 842da53370241fdd1b5c291483311b34e609f06c73Jakob Stoklund Olesen setSubReg(0); 852da53370241fdd1b5c291483311b34e609f06c73Jakob Stoklund Olesen } 862da53370241fdd1b5c291483311b34e609f06c73Jakob Stoklund Olesen setReg(Reg); 872da53370241fdd1b5c291483311b34e609f06c73Jakob Stoklund Olesen} 882da53370241fdd1b5c291483311b34e609f06c73Jakob Stoklund Olesen 89d6397eba2389e8a24d37aa56e049187c1ee75f4fJakob Stoklund Olesen/// Change a def to a use, or a use to a def. 90d6397eba2389e8a24d37aa56e049187c1ee75f4fJakob Stoklund Olesenvoid MachineOperand::setIsDef(bool Val) { 91d6397eba2389e8a24d37aa56e049187c1ee75f4fJakob Stoklund Olesen assert(isReg() && "Wrong MachineOperand accessor"); 92d6397eba2389e8a24d37aa56e049187c1ee75f4fJakob Stoklund Olesen assert((!Val || !isDebug()) && "Marking a debug operation as def"); 93d6397eba2389e8a24d37aa56e049187c1ee75f4fJakob Stoklund Olesen if (IsDef == Val) 94d6397eba2389e8a24d37aa56e049187c1ee75f4fJakob Stoklund Olesen return; 95d6397eba2389e8a24d37aa56e049187c1ee75f4fJakob Stoklund Olesen // MRI may keep uses and defs in different list positions. 96d6397eba2389e8a24d37aa56e049187c1ee75f4fJakob Stoklund Olesen if (MachineInstr *MI = getParent()) 97d6397eba2389e8a24d37aa56e049187c1ee75f4fJakob Stoklund Olesen if (MachineBasicBlock *MBB = MI->getParent()) 98d6397eba2389e8a24d37aa56e049187c1ee75f4fJakob Stoklund Olesen if (MachineFunction *MF = MBB->getParent()) { 99d6397eba2389e8a24d37aa56e049187c1ee75f4fJakob Stoklund Olesen MachineRegisterInfo &MRI = MF->getRegInfo(); 100d6397eba2389e8a24d37aa56e049187c1ee75f4fJakob Stoklund Olesen MRI.removeRegOperandFromUseList(this); 101d6397eba2389e8a24d37aa56e049187c1ee75f4fJakob Stoklund Olesen IsDef = Val; 102d6397eba2389e8a24d37aa56e049187c1ee75f4fJakob Stoklund Olesen MRI.addRegOperandToUseList(this); 103d6397eba2389e8a24d37aa56e049187c1ee75f4fJakob Stoklund Olesen return; 104d6397eba2389e8a24d37aa56e049187c1ee75f4fJakob Stoklund Olesen } 105d6397eba2389e8a24d37aa56e049187c1ee75f4fJakob Stoklund Olesen IsDef = Val; 106d6397eba2389e8a24d37aa56e049187c1ee75f4fJakob Stoklund Olesen} 107d6397eba2389e8a24d37aa56e049187c1ee75f4fJakob Stoklund Olesen 10862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// ChangeToImmediate - Replace this operand with a new immediate operand of 10962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// the specified value. If an operand is known to be an immediate already, 11062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// the setImm method should be used. 11162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattnervoid MachineOperand::ChangeToImmediate(int64_t ImmVal) { 112699ac049517285d978ed607b2735976c5ae97ac0Jakob Stoklund Olesen assert((!isReg() || !isTied()) && "Cannot change a tied operand into an imm"); 11362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // If this operand is currently a register operand, and if this is in a 11462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // function, deregister the operand from the register's use/def list. 115ff2b99afc8cbc6cfa73181072888e0f9f07deb7eJakob Stoklund Olesen if (isReg() && isOnRegUseList()) 116ff2b99afc8cbc6cfa73181072888e0f9f07deb7eJakob Stoklund Olesen if (MachineInstr *MI = getParent()) 117ff2b99afc8cbc6cfa73181072888e0f9f07deb7eJakob Stoklund Olesen if (MachineBasicBlock *MBB = MI->getParent()) 118ff2b99afc8cbc6cfa73181072888e0f9f07deb7eJakob Stoklund Olesen if (MachineFunction *MF = MBB->getParent()) 119ff2b99afc8cbc6cfa73181072888e0f9f07deb7eJakob Stoklund Olesen MF->getRegInfo().removeRegOperandFromUseList(this); 120ee61d67c2f1105e23b2ea5110389f3b7b713b504Jim Grosbach 12162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner OpKind = MO_Immediate; 12262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Contents.ImmVal = ImmVal; 12362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner} 12462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 12562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// ChangeToRegister - Replace this operand with a new register operand of 12662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// the specified value. If an operand is known to be an register already, 12762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// the setReg method should be used. 12862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattnervoid MachineOperand::ChangeToRegister(unsigned Reg, bool isDef, bool isImp, 1299653f9ec970147a12216d787078eab2f8b9c122aDale Johannesen bool isKill, bool isDead, bool isUndef, 1309653f9ec970147a12216d787078eab2f8b9c122aDale Johannesen bool isDebug) { 131dce4a407a24b04eebc6a376f8e62b41aaa7b071fStephen Hines MachineRegisterInfo *RegInfo = nullptr; 132d6397eba2389e8a24d37aa56e049187c1ee75f4fJakob Stoklund Olesen if (MachineInstr *MI = getParent()) 133d6397eba2389e8a24d37aa56e049187c1ee75f4fJakob Stoklund Olesen if (MachineBasicBlock *MBB = MI->getParent()) 134d6397eba2389e8a24d37aa56e049187c1ee75f4fJakob Stoklund Olesen if (MachineFunction *MF = MBB->getParent()) 135d6397eba2389e8a24d37aa56e049187c1ee75f4fJakob Stoklund Olesen RegInfo = &MF->getRegInfo(); 136d6397eba2389e8a24d37aa56e049187c1ee75f4fJakob Stoklund Olesen // If this operand is already a register operand, remove it from the 13762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // register's use/def lists. 138699ac049517285d978ed607b2735976c5ae97ac0Jakob Stoklund Olesen bool WasReg = isReg(); 139699ac049517285d978ed607b2735976c5ae97ac0Jakob Stoklund Olesen if (RegInfo && WasReg) 140d6397eba2389e8a24d37aa56e049187c1ee75f4fJakob Stoklund Olesen RegInfo->removeRegOperandFromUseList(this); 14162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 142d6397eba2389e8a24d37aa56e049187c1ee75f4fJakob Stoklund Olesen // Change this to a register and set the reg#. 143d6397eba2389e8a24d37aa56e049187c1ee75f4fJakob Stoklund Olesen OpKind = MO_Register; 144d6397eba2389e8a24d37aa56e049187c1ee75f4fJakob Stoklund Olesen SmallContents.RegNo = Reg; 145682106050979f0d48fcf17338c99e91672352789Jakob Stoklund Olesen SubReg_TargetFlags = 0; 14662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner IsDef = isDef; 14762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner IsImp = isImp; 14862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner IsKill = isKill; 14962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner IsDead = isDead; 1504784f1fc73abf6005b7b7262d395af71b57b1255Evan Cheng IsUndef = isUndef; 1512068215e8515203ab4839ee494cdc53dfd0cdf02Jakob Stoklund Olesen IsInternalRead = false; 152e009180f2bbcf5edbe3b583936c37c4b3be2d082Dale Johannesen IsEarlyClobber = false; 1539653f9ec970147a12216d787078eab2f8b9c122aDale Johannesen IsDebug = isDebug; 154d6397eba2389e8a24d37aa56e049187c1ee75f4fJakob Stoklund Olesen // Ensure isOnRegUseList() returns false. 155dce4a407a24b04eebc6a376f8e62b41aaa7b071fStephen Hines Contents.Reg.Prev = nullptr; 1569c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen // Preserve the tie when the operand was already a register. 157699ac049517285d978ed607b2735976c5ae97ac0Jakob Stoklund Olesen if (!WasReg) 1589c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen TiedTo = 0; 159d6397eba2389e8a24d37aa56e049187c1ee75f4fJakob Stoklund Olesen 160d6397eba2389e8a24d37aa56e049187c1ee75f4fJakob Stoklund Olesen // If this operand is embedded in a function, add the operand to the 161d6397eba2389e8a24d37aa56e049187c1ee75f4fJakob Stoklund Olesen // register's use/def list. 162d6397eba2389e8a24d37aa56e049187c1ee75f4fJakob Stoklund Olesen if (RegInfo) 163d6397eba2389e8a24d37aa56e049187c1ee75f4fJakob Stoklund Olesen RegInfo->addRegOperandToUseList(this); 16462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner} 16562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 166f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner/// isIdenticalTo - Return true if this operand is identical to the specified 167d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth/// operand. Note that this should stay in sync with the hash_value overload 168d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth/// below. 169f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattnerbool MachineOperand::isIdenticalTo(const MachineOperand &Other) const { 17031530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner if (getType() != Other.getType() || 17131530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner getTargetFlags() != Other.getTargetFlags()) 17231530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner return false; 173ee61d67c2f1105e23b2ea5110389f3b7b713b504Jim Grosbach 174f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner switch (getType()) { 175f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_Register: 176f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner return getReg() == Other.getReg() && isDef() == Other.isDef() && 177f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner getSubReg() == Other.getSubReg(); 178f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_Immediate: 179f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner return getImm() == Other.getImm(); 180c20fb63ebdbc8caec4566eaa7bc5be7f0a14cca1Cameron Zwarich case MachineOperand::MO_CImmediate: 181c20fb63ebdbc8caec4566eaa7bc5be7f0a14cca1Cameron Zwarich return getCImm() == Other.getCImm(); 182e8b7ccf0c9a06831266d690d0b10ead71e0a4ac5Nate Begeman case MachineOperand::MO_FPImmediate: 183e8b7ccf0c9a06831266d690d0b10ead71e0a4ac5Nate Begeman return getFPImm() == Other.getFPImm(); 184f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_MachineBasicBlock: 185f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner return getMBB() == Other.getMBB(); 186f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_FrameIndex: 1878aa797aa51cd4ea1ec6f46f4891a6897944b75b2Chris Lattner return getIndex() == Other.getIndex(); 188f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_ConstantPoolIndex: 1890b40d09ff6b1facd0fe81e50ee0271e035488520Jakob Stoklund Olesen case MachineOperand::MO_TargetIndex: 1908aa797aa51cd4ea1ec6f46f4891a6897944b75b2Chris Lattner return getIndex() == Other.getIndex() && getOffset() == Other.getOffset(); 191f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_JumpTableIndex: 1928aa797aa51cd4ea1ec6f46f4891a6897944b75b2Chris Lattner return getIndex() == Other.getIndex(); 193f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_GlobalAddress: 194f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner return getGlobal() == Other.getGlobal() && getOffset() == Other.getOffset(); 195f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_ExternalSymbol: 196f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner return !strcmp(getSymbolName(), Other.getSymbolName()) && 197f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner getOffset() == Other.getOffset(); 1988c2b52552c90f39e4b2fed43e309e599e742b6acDan Gohman case MachineOperand::MO_BlockAddress: 1996c7ccaa3fd1d6e96d0bf922554b09d2b17c3b0e3Michael Liao return getBlockAddress() == Other.getBlockAddress() && 2006c7ccaa3fd1d6e96d0bf922554b09d2b17c3b0e3Michael Liao getOffset() == Other.getOffset(); 20136b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines case MachineOperand::MO_RegisterMask: 20236b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines case MachineOperand::MO_RegisterLiveOut: 2037739cad69d2590f556afc9fc3048f967b5a3f4f6Jakob Stoklund Olesen return getRegMask() == Other.getRegMask(); 20472aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner case MachineOperand::MO_MCSymbol: 20572aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner return getMCSymbol() == Other.getMCSymbol(); 20636b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines case MachineOperand::MO_CFIIndex: 20736b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines return getCFIIndex() == Other.getCFIIndex(); 20824ad3ed71fe93059d1b46ffdbfe63259762bf547Chris Lattner case MachineOperand::MO_Metadata: 20924ad3ed71fe93059d1b46ffdbfe63259762bf547Chris Lattner return getMetadata() == Other.getMetadata(); 210f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner } 211732f05c41f177a0bc4d47e93a5d02120f146cb4cChandler Carruth llvm_unreachable("Invalid machine operand type"); 212f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner} 213f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner 214d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth// Note: this must stay exactly in sync with isIdenticalTo above. 215d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruthhash_code llvm::hash_value(const MachineOperand &MO) { 216d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth switch (MO.getType()) { 217d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth case MachineOperand::MO_Register: 218190e342cbcb1456ebb21b53a35cfefa99435bd65Jakob Stoklund Olesen // Register operands don't have target flags. 219190e342cbcb1456ebb21b53a35cfefa99435bd65Jakob Stoklund Olesen return hash_combine(MO.getType(), MO.getReg(), MO.getSubReg(), MO.isDef()); 220d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth case MachineOperand::MO_Immediate: 221d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth return hash_combine(MO.getType(), MO.getTargetFlags(), MO.getImm()); 222d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth case MachineOperand::MO_CImmediate: 223d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth return hash_combine(MO.getType(), MO.getTargetFlags(), MO.getCImm()); 224d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth case MachineOperand::MO_FPImmediate: 225d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth return hash_combine(MO.getType(), MO.getTargetFlags(), MO.getFPImm()); 226d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth case MachineOperand::MO_MachineBasicBlock: 227d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth return hash_combine(MO.getType(), MO.getTargetFlags(), MO.getMBB()); 228d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth case MachineOperand::MO_FrameIndex: 229d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth return hash_combine(MO.getType(), MO.getTargetFlags(), MO.getIndex()); 230d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth case MachineOperand::MO_ConstantPoolIndex: 2310b40d09ff6b1facd0fe81e50ee0271e035488520Jakob Stoklund Olesen case MachineOperand::MO_TargetIndex: 232d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth return hash_combine(MO.getType(), MO.getTargetFlags(), MO.getIndex(), 233d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth MO.getOffset()); 234d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth case MachineOperand::MO_JumpTableIndex: 235d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth return hash_combine(MO.getType(), MO.getTargetFlags(), MO.getIndex()); 236d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth case MachineOperand::MO_ExternalSymbol: 237d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth return hash_combine(MO.getType(), MO.getTargetFlags(), MO.getOffset(), 238d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth MO.getSymbolName()); 239d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth case MachineOperand::MO_GlobalAddress: 240d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth return hash_combine(MO.getType(), MO.getTargetFlags(), MO.getGlobal(), 241d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth MO.getOffset()); 242d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth case MachineOperand::MO_BlockAddress: 243d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth return hash_combine(MO.getType(), MO.getTargetFlags(), 2446c7ccaa3fd1d6e96d0bf922554b09d2b17c3b0e3Michael Liao MO.getBlockAddress(), MO.getOffset()); 245d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth case MachineOperand::MO_RegisterMask: 24636b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines case MachineOperand::MO_RegisterLiveOut: 247d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth return hash_combine(MO.getType(), MO.getTargetFlags(), MO.getRegMask()); 248d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth case MachineOperand::MO_Metadata: 249d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth return hash_combine(MO.getType(), MO.getTargetFlags(), MO.getMetadata()); 250d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth case MachineOperand::MO_MCSymbol: 251d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth return hash_combine(MO.getType(), MO.getTargetFlags(), MO.getMCSymbol()); 25236b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines case MachineOperand::MO_CFIIndex: 25336b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines return hash_combine(MO.getType(), MO.getTargetFlags(), MO.getCFIIndex()); 254d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth } 255d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth llvm_unreachable("Invalid machine operand type"); 256d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth} 257d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth 258f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner/// print - Print the specified machine operand. 259f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner/// 2605ca6bd14a00ba5310ce1a632d3a0cc8f8af31433Mon P Wangvoid MachineOperand::print(raw_ostream &OS, const TargetMachine *TM) const { 26180f6c5898113806130975fd56d24929b06bf54f8Dan Gohman // If the instruction is embedded into a basic block, we can find the 26280f6c5898113806130975fd56d24929b06bf54f8Dan Gohman // target info for the instruction. 26380f6c5898113806130975fd56d24929b06bf54f8Dan Gohman if (!TM) 26480f6c5898113806130975fd56d24929b06bf54f8Dan Gohman if (const MachineInstr *MI = getParent()) 26580f6c5898113806130975fd56d24929b06bf54f8Dan Gohman if (const MachineBasicBlock *MBB = MI->getParent()) 26680f6c5898113806130975fd56d24929b06bf54f8Dan Gohman if (const MachineFunction *MF = MBB->getParent()) 26780f6c5898113806130975fd56d24929b06bf54f8Dan Gohman TM = &MF->getTarget(); 268dce4a407a24b04eebc6a376f8e62b41aaa7b071fStephen Hines const TargetRegisterInfo *TRI = TM ? TM->getRegisterInfo() : nullptr; 26980f6c5898113806130975fd56d24929b06bf54f8Dan Gohman 270f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner switch (getType()) { 271f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_Register: 2724314268128be6d54c9a7f0709680e5a5b40f3ab3Jakob Stoklund Olesen OS << PrintReg(getReg(), TRI, getSubReg()); 2732ccc83966914593d98af5671ce10a3bf2dcf7513Dan Gohman 2744784f1fc73abf6005b7b7262d395af71b57b1255Evan Cheng if (isDef() || isKill() || isDead() || isImplicit() || isUndef() || 2754ba6916a98fffd9dedac5945ac51d40c8948069eJakob Stoklund Olesen isInternalRead() || isEarlyClobber() || isTied()) { 27631530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner OS << '<'; 277f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner bool NeedComma = false; 2780789707c49135bba69e0e308d0fbc41bb7cbe78aEvan Cheng if (isDef()) { 27931530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner if (NeedComma) OS << ','; 280913d3dfac43f29921467f33aa743f28ee1bfc5d1Dale Johannesen if (isEarlyClobber()) 281913d3dfac43f29921467f33aa743f28ee1bfc5d1Dale Johannesen OS << "earlyclobber,"; 2820789707c49135bba69e0e308d0fbc41bb7cbe78aEvan Cheng if (isImplicit()) 2830789707c49135bba69e0e308d0fbc41bb7cbe78aEvan Cheng OS << "imp-"; 284f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner OS << "def"; 285f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner NeedComma = true; 2863429c7571e87ca6070ceb1b44b1f367ce23c99f9Jakob Stoklund Olesen // <def,read-undef> only makes sense when getSubReg() is set. 2873429c7571e87ca6070ceb1b44b1f367ce23c99f9Jakob Stoklund Olesen // Don't clutter the output otherwise. 2883429c7571e87ca6070ceb1b44b1f367ce23c99f9Jakob Stoklund Olesen if (isUndef() && getSubReg()) 2893429c7571e87ca6070ceb1b44b1f367ce23c99f9Jakob Stoklund Olesen OS << ",read-undef"; 2905affca0763836e15ca15e78ed3a0fd56ef6b2e92Evan Cheng } else if (isImplicit()) { 2910789707c49135bba69e0e308d0fbc41bb7cbe78aEvan Cheng OS << "imp-use"; 2925affca0763836e15ca15e78ed3a0fd56ef6b2e92Evan Cheng NeedComma = true; 2935affca0763836e15ca15e78ed3a0fd56ef6b2e92Evan Cheng } 2940789707c49135bba69e0e308d0fbc41bb7cbe78aEvan Cheng 2954ba6916a98fffd9dedac5945ac51d40c8948069eJakob Stoklund Olesen if (isKill()) { 29631530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner if (NeedComma) OS << ','; 2974ba6916a98fffd9dedac5945ac51d40c8948069eJakob Stoklund Olesen OS << "kill"; 2984ba6916a98fffd9dedac5945ac51d40c8948069eJakob Stoklund Olesen NeedComma = true; 2994ba6916a98fffd9dedac5945ac51d40c8948069eJakob Stoklund Olesen } 3004ba6916a98fffd9dedac5945ac51d40c8948069eJakob Stoklund Olesen if (isDead()) { 3014ba6916a98fffd9dedac5945ac51d40c8948069eJakob Stoklund Olesen if (NeedComma) OS << ','; 3024ba6916a98fffd9dedac5945ac51d40c8948069eJakob Stoklund Olesen OS << "dead"; 3034ba6916a98fffd9dedac5945ac51d40c8948069eJakob Stoklund Olesen NeedComma = true; 3044ba6916a98fffd9dedac5945ac51d40c8948069eJakob Stoklund Olesen } 3054ba6916a98fffd9dedac5945ac51d40c8948069eJakob Stoklund Olesen if (isUndef() && isUse()) { 3064ba6916a98fffd9dedac5945ac51d40c8948069eJakob Stoklund Olesen if (NeedComma) OS << ','; 3074ba6916a98fffd9dedac5945ac51d40c8948069eJakob Stoklund Olesen OS << "undef"; 3084ba6916a98fffd9dedac5945ac51d40c8948069eJakob Stoklund Olesen NeedComma = true; 3094ba6916a98fffd9dedac5945ac51d40c8948069eJakob Stoklund Olesen } 3104ba6916a98fffd9dedac5945ac51d40c8948069eJakob Stoklund Olesen if (isInternalRead()) { 3114ba6916a98fffd9dedac5945ac51d40c8948069eJakob Stoklund Olesen if (NeedComma) OS << ','; 3124ba6916a98fffd9dedac5945ac51d40c8948069eJakob Stoklund Olesen OS << "internal"; 3134ba6916a98fffd9dedac5945ac51d40c8948069eJakob Stoklund Olesen NeedComma = true; 3144ba6916a98fffd9dedac5945ac51d40c8948069eJakob Stoklund Olesen } 3154ba6916a98fffd9dedac5945ac51d40c8948069eJakob Stoklund Olesen if (isTied()) { 3164ba6916a98fffd9dedac5945ac51d40c8948069eJakob Stoklund Olesen if (NeedComma) OS << ','; 3174ba6916a98fffd9dedac5945ac51d40c8948069eJakob Stoklund Olesen OS << "tied"; 3189c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen if (TiedTo != 15) 3199c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen OS << unsigned(TiedTo - 1); 320f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner } 32131530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner OS << '>'; 322f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner } 323f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner break; 324f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_Immediate: 325f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner OS << getImm(); 326f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner break; 3278594d429e02c688d428036f8563f09572da3fbffDevang Patel case MachineOperand::MO_CImmediate: 3288594d429e02c688d428036f8563f09572da3fbffDevang Patel getCImm()->getValue().print(OS, false); 3298594d429e02c688d428036f8563f09572da3fbffDevang Patel break; 330e8b7ccf0c9a06831266d690d0b10ead71e0a4ac5Nate Begeman case MachineOperand::MO_FPImmediate: 331cf0fe8d813727383d630055bb9d1cde21b00b7e7Chris Lattner if (getFPImm()->getType()->isFloatTy()) 332e8b7ccf0c9a06831266d690d0b10ead71e0a4ac5Nate Begeman OS << getFPImm()->getValueAPF().convertToFloat(); 33331530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner else 334e8b7ccf0c9a06831266d690d0b10ead71e0a4ac5Nate Begeman OS << getFPImm()->getValueAPF().convertToDouble(); 335e8b7ccf0c9a06831266d690d0b10ead71e0a4ac5Nate Begeman break; 336f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_MachineBasicBlock: 3370ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman OS << "<BB#" << getMBB()->getNumber() << ">"; 338f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner break; 339f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_FrameIndex: 34031530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner OS << "<fi#" << getIndex() << '>'; 341f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner break; 342f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_ConstantPoolIndex: 3438aa797aa51cd4ea1ec6f46f4891a6897944b75b2Chris Lattner OS << "<cp#" << getIndex(); 344f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner if (getOffset()) OS << "+" << getOffset(); 34531530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner OS << '>'; 346f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner break; 3470b40d09ff6b1facd0fe81e50ee0271e035488520Jakob Stoklund Olesen case MachineOperand::MO_TargetIndex: 3480b40d09ff6b1facd0fe81e50ee0271e035488520Jakob Stoklund Olesen OS << "<ti#" << getIndex(); 3490b40d09ff6b1facd0fe81e50ee0271e035488520Jakob Stoklund Olesen if (getOffset()) OS << "+" << getOffset(); 3500b40d09ff6b1facd0fe81e50ee0271e035488520Jakob Stoklund Olesen OS << '>'; 3510b40d09ff6b1facd0fe81e50ee0271e035488520Jakob Stoklund Olesen break; 352f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_JumpTableIndex: 35331530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner OS << "<jt#" << getIndex() << '>'; 354f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner break; 355f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_GlobalAddress: 3568d4e3b5b48b245ed65259270a53fcaf0bf91d9f7Dan Gohman OS << "<ga:"; 35736b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines getGlobal()->printAsOperand(OS, /*PrintType=*/false); 358f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner if (getOffset()) OS << "+" << getOffset(); 35931530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner OS << '>'; 360f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner break; 361f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_ExternalSymbol: 362f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner OS << "<es:" << getSymbolName(); 363f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner if (getOffset()) OS << "+" << getOffset(); 36431530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner OS << '>'; 365f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner break; 3668c2b52552c90f39e4b2fed43e309e599e742b6acDan Gohman case MachineOperand::MO_BlockAddress: 3675f72a5ebc84a1935878b5b2d3166a505c520cdfcDale Johannesen OS << '<'; 36836b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines getBlockAddress()->printAsOperand(OS, /*PrintType=*/false); 3696c7ccaa3fd1d6e96d0bf922554b09d2b17c3b0e3Michael Liao if (getOffset()) OS << "+" << getOffset(); 3708c2b52552c90f39e4b2fed43e309e599e742b6acDan Gohman OS << '>'; 3718c2b52552c90f39e4b2fed43e309e599e742b6acDan Gohman break; 3727739cad69d2590f556afc9fc3048f967b5a3f4f6Jakob Stoklund Olesen case MachineOperand::MO_RegisterMask: 373478a8a02bc0f2e739ed8f4240152e99837e480b9Jakob Stoklund Olesen OS << "<regmask>"; 3747739cad69d2590f556afc9fc3048f967b5a3f4f6Jakob Stoklund Olesen break; 37536b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines case MachineOperand::MO_RegisterLiveOut: 37636b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines OS << "<regliveout>"; 37736b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines break; 3785f72a5ebc84a1935878b5b2d3166a505c520cdfcDale Johannesen case MachineOperand::MO_Metadata: 3795f72a5ebc84a1935878b5b2d3166a505c520cdfcDale Johannesen OS << '<'; 38036b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines getMetadata()->printAsOperand(OS, /*PrintType=*/false); 3815f72a5ebc84a1935878b5b2d3166a505c520cdfcDale Johannesen OS << '>'; 3825f72a5ebc84a1935878b5b2d3166a505c520cdfcDale Johannesen break; 38372aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner case MachineOperand::MO_MCSymbol: 38472aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner OS << "<MCSym=" << *getMCSymbol() << '>'; 38572aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner break; 38636b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines case MachineOperand::MO_CFIIndex: 38736b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines OS << "<call frame instruction>"; 38836b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines break; 389f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner } 390ee61d67c2f1105e23b2ea5110389f3b7b713b504Jim Grosbach 39131530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner if (unsigned TF = getTargetFlags()) 39231530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner OS << "[TF=" << TF << ']'; 393f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner} 394f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner 395f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner//===----------------------------------------------------------------------===// 396ce42e404a26454f4332c2c350c75ad27bbbb16f7Dan Gohman// MachineMemOperand Implementation 397ce42e404a26454f4332c2c350c75ad27bbbb16f7Dan Gohman//===----------------------------------------------------------------------===// 398ce42e404a26454f4332c2c350c75ad27bbbb16f7Dan Gohman 39940a858f6e71ed8d68779d00c63dad15baded3562Chris Lattner/// getAddrSpace - Return the LLVM IR address space number that this pointer 40040a858f6e71ed8d68779d00c63dad15baded3562Chris Lattner/// points into. 40140a858f6e71ed8d68779d00c63dad15baded3562Chris Lattnerunsigned MachinePointerInfo::getAddrSpace() const { 402dce4a407a24b04eebc6a376f8e62b41aaa7b071fStephen Hines if (V.isNull() || V.is<const PseudoSourceValue*>()) return 0; 403dce4a407a24b04eebc6a376f8e62b41aaa7b071fStephen Hines return cast<PointerType>(V.get<const Value*>()->getType())->getAddressSpace(); 40440a858f6e71ed8d68779d00c63dad15baded3562Chris Lattner} 40540a858f6e71ed8d68779d00c63dad15baded3562Chris Lattner 406e8639036b1fb3a5b5e9589fe4e9f2ee1b77c36bdChris Lattner/// getConstantPool - Return a MachinePointerInfo record that refers to the 407e8639036b1fb3a5b5e9589fe4e9f2ee1b77c36bdChris Lattner/// constant pool. 408e8639036b1fb3a5b5e9589fe4e9f2ee1b77c36bdChris LattnerMachinePointerInfo MachinePointerInfo::getConstantPool() { 409e8639036b1fb3a5b5e9589fe4e9f2ee1b77c36bdChris Lattner return MachinePointerInfo(PseudoSourceValue::getConstantPool()); 410e8639036b1fb3a5b5e9589fe4e9f2ee1b77c36bdChris Lattner} 411e8639036b1fb3a5b5e9589fe4e9f2ee1b77c36bdChris Lattner 412e8639036b1fb3a5b5e9589fe4e9f2ee1b77c36bdChris Lattner/// getFixedStack - Return a MachinePointerInfo record that refers to the 413e8639036b1fb3a5b5e9589fe4e9f2ee1b77c36bdChris Lattner/// the specified FrameIndex. 414e8639036b1fb3a5b5e9589fe4e9f2ee1b77c36bdChris LattnerMachinePointerInfo MachinePointerInfo::getFixedStack(int FI, int64_t offset) { 415e8639036b1fb3a5b5e9589fe4e9f2ee1b77c36bdChris Lattner return MachinePointerInfo(PseudoSourceValue::getFixedStack(FI), offset); 416e8639036b1fb3a5b5e9589fe4e9f2ee1b77c36bdChris Lattner} 417e8639036b1fb3a5b5e9589fe4e9f2ee1b77c36bdChris Lattner 4181daa6f479dd5fb4123f1ffbb10a3825da7d2c6b8Chris LattnerMachinePointerInfo MachinePointerInfo::getJumpTable() { 4191daa6f479dd5fb4123f1ffbb10a3825da7d2c6b8Chris Lattner return MachinePointerInfo(PseudoSourceValue::getJumpTable()); 4201daa6f479dd5fb4123f1ffbb10a3825da7d2c6b8Chris Lattner} 4211daa6f479dd5fb4123f1ffbb10a3825da7d2c6b8Chris Lattner 4221daa6f479dd5fb4123f1ffbb10a3825da7d2c6b8Chris LattnerMachinePointerInfo MachinePointerInfo::getGOT() { 4231daa6f479dd5fb4123f1ffbb10a3825da7d2c6b8Chris Lattner return MachinePointerInfo(PseudoSourceValue::getGOT()); 4241daa6f479dd5fb4123f1ffbb10a3825da7d2c6b8Chris Lattner} 42540a858f6e71ed8d68779d00c63dad15baded3562Chris Lattner 426fc448ff89b4fb7721de9da0b96fd00c13160c4c7Chris LattnerMachinePointerInfo MachinePointerInfo::getStack(int64_t Offset) { 427fc448ff89b4fb7721de9da0b96fd00c13160c4c7Chris Lattner return MachinePointerInfo(PseudoSourceValue::getStack(), Offset); 428fc448ff89b4fb7721de9da0b96fd00c13160c4c7Chris Lattner} 429fc448ff89b4fb7721de9da0b96fd00c13160c4c7Chris Lattner 430da39c3964423744b4d79aebef8bece3e9141d5fcChris LattnerMachineMemOperand::MachineMemOperand(MachinePointerInfo ptrinfo, unsigned f, 431f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman uint64_t s, unsigned int a, 43295d594cac3737ae1594a391276942a443cac426bRafael Espindola const MDNode *TBAAInfo, 43395d594cac3737ae1594a391276942a443cac426bRafael Espindola const MDNode *Ranges) 434da39c3964423744b4d79aebef8bece3e9141d5fcChris Lattner : PtrInfo(ptrinfo), Size(s), 435f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman Flags((f & ((1 << MOMaxBits) - 1)) | ((Log2_32(a) + 1) << MOMaxBits)), 43695d594cac3737ae1594a391276942a443cac426bRafael Espindola TBAAInfo(TBAAInfo), Ranges(Ranges) { 437dce4a407a24b04eebc6a376f8e62b41aaa7b071fStephen Hines assert((PtrInfo.V.isNull() || PtrInfo.V.is<const PseudoSourceValue*>() || 438dce4a407a24b04eebc6a376f8e62b41aaa7b071fStephen Hines isa<PointerType>(PtrInfo.V.get<const Value*>()->getType())) && 439da39c3964423744b4d79aebef8bece3e9141d5fcChris Lattner "invalid pointer value"); 44028f02fdd76f4efc05d14649e0eec90ce8e71e17eDan Gohman assert(getBaseAlignment() == a && "Alignment is not a power of 2!"); 441c5e1f98fdf44993c2bfe4c1ef633b2358cd718c1Dan Gohman assert((isLoad() || isStore()) && "Not a load/store!"); 442ce42e404a26454f4332c2c350c75ad27bbbb16f7Dan Gohman} 443ce42e404a26454f4332c2c350c75ad27bbbb16f7Dan Gohman 444b8d2f550b84523e8a73198f98e5d450ec3b4fee7Dan Gohman/// Profile - Gather unique data for the object. 445b8d2f550b84523e8a73198f98e5d450ec3b4fee7Dan Gohman/// 446b8d2f550b84523e8a73198f98e5d450ec3b4fee7Dan Gohmanvoid MachineMemOperand::Profile(FoldingSetNodeID &ID) const { 447e8e2e80f40495fdd5ad475beb54fcf0989b6b7c5Chris Lattner ID.AddInteger(getOffset()); 448b8d2f550b84523e8a73198f98e5d450ec3b4fee7Dan Gohman ID.AddInteger(Size); 449dce4a407a24b04eebc6a376f8e62b41aaa7b071fStephen Hines ID.AddPointer(getOpaqueValue()); 450b8d2f550b84523e8a73198f98e5d450ec3b4fee7Dan Gohman ID.AddInteger(Flags); 451b8d2f550b84523e8a73198f98e5d450ec3b4fee7Dan Gohman} 452b8d2f550b84523e8a73198f98e5d450ec3b4fee7Dan Gohman 453c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohmanvoid MachineMemOperand::refineAlignment(const MachineMemOperand *MMO) { 454c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman // The Value and Offset may differ due to CSE. But the flags and size 455c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman // should be the same. 456c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman assert(MMO->getFlags() == getFlags() && "Flags mismatch!"); 457c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman assert(MMO->getSize() == getSize() && "Size mismatch!"); 458c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman 459c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman if (MMO->getBaseAlignment() >= getBaseAlignment()) { 460c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman // Update the alignment value. 461ba2b297ca53cd685ba397177e9d2d8c239da971eDavid Greene Flags = (Flags & ((1 << MOMaxBits) - 1)) | 462ba2b297ca53cd685ba397177e9d2d8c239da971eDavid Greene ((Log2_32(MMO->getBaseAlignment()) + 1) << MOMaxBits); 463c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman // Also update the base and offset, because the new alignment may 464c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman // not be applicable with the old ones. 465e8e2e80f40495fdd5ad475beb54fcf0989b6b7c5Chris Lattner PtrInfo = MMO->PtrInfo; 466c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman } 467c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman} 468c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman 4694b2ebc19288491cb068f268c311d9fef0ec6a29fDan Gohman/// getAlignment - Return the minimum known alignment in bytes of the 4704b2ebc19288491cb068f268c311d9fef0ec6a29fDan Gohman/// actual memory reference. 4714b2ebc19288491cb068f268c311d9fef0ec6a29fDan Gohmanuint64_t MachineMemOperand::getAlignment() const { 4724b2ebc19288491cb068f268c311d9fef0ec6a29fDan Gohman return MinAlign(getBaseAlignment(), getOffset()); 4734b2ebc19288491cb068f268c311d9fef0ec6a29fDan Gohman} 4744b2ebc19288491cb068f268c311d9fef0ec6a29fDan Gohman 475c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohmanraw_ostream &llvm::operator<<(raw_ostream &OS, const MachineMemOperand &MMO) { 476c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman assert((MMO.isLoad() || MMO.isStore()) && 477cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman "SV has to be a load, store or both."); 478ee61d67c2f1105e23b2ea5110389f3b7b713b504Jim Grosbach 479c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman if (MMO.isVolatile()) 480cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman OS << "Volatile "; 481cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman 482c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman if (MMO.isLoad()) 483cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman OS << "LD"; 484c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman if (MMO.isStore()) 485cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman OS << "ST"; 486c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman OS << MMO.getSize(); 487ee61d67c2f1105e23b2ea5110389f3b7b713b504Jim Grosbach 488cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman // Print the address information. 489cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman OS << "["; 490dce4a407a24b04eebc6a376f8e62b41aaa7b071fStephen Hines if (const Value *V = MMO.getValue()) 491dce4a407a24b04eebc6a376f8e62b41aaa7b071fStephen Hines V->printAsOperand(OS, /*PrintType=*/false); 492dce4a407a24b04eebc6a376f8e62b41aaa7b071fStephen Hines else if (const PseudoSourceValue *PSV = MMO.getPseudoValue()) 493dce4a407a24b04eebc6a376f8e62b41aaa7b071fStephen Hines PSV->printCustom(OS); 494cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman else 495dce4a407a24b04eebc6a376f8e62b41aaa7b071fStephen Hines OS << "<unknown>"; 49636b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines 49736b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines unsigned AS = MMO.getAddrSpace(); 49836b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines if (AS != 0) 49936b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines OS << "(addrspace=" << AS << ')'; 500cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman 501cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman // If the alignment of the memory reference itself differs from the alignment 502cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman // of the base pointer, print the base alignment explicitly, next to the base 503cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman // pointer. 504c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman if (MMO.getBaseAlignment() != MMO.getAlignment()) 505c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman OS << "(align=" << MMO.getBaseAlignment() << ")"; 506cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman 507c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman if (MMO.getOffset() != 0) 508c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman OS << "+" << MMO.getOffset(); 509cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman OS << "]"; 510cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman 511cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman // Print the alignment of the reference. 512c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman if (MMO.getBaseAlignment() != MMO.getAlignment() || 513c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman MMO.getBaseAlignment() != MMO.getSize()) 514c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman OS << "(align=" << MMO.getAlignment() << ")"; 515cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman 516f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman // Print TBAA info. 517f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman if (const MDNode *TBAAInfo = MMO.getTBAAInfo()) { 518f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman OS << "(tbaa="; 519f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman if (TBAAInfo->getNumOperands() > 0) 52036b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines TBAAInfo->getOperand(0)->printAsOperand(OS, /*PrintType=*/false); 521f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman else 522f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman OS << "<unknown>"; 523f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman OS << ")"; 524f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman } 525f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman 526d65ba721cccb0d0998750908bf2533e08b106f38Bill Wendling // Print nontemporal info. 527d65ba721cccb0d0998750908bf2533e08b106f38Bill Wendling if (MMO.isNonTemporal()) 528d65ba721cccb0d0998750908bf2533e08b106f38Bill Wendling OS << "(nontemporal)"; 529d65ba721cccb0d0998750908bf2533e08b106f38Bill Wendling 530cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman return OS; 531cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman} 532cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman 533ce42e404a26454f4332c2c350c75ad27bbbb16f7Dan Gohman//===----------------------------------------------------------------------===// 534f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner// MachineInstr Implementation 535f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner//===----------------------------------------------------------------------===// 536f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner 5379500e5d07ac9b94c8fed74150e444778a0dcb036Jakob Stoklund Olesenvoid MachineInstr::addImplicitDefUseOperands(MachineFunction &MF) { 538e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng if (MCID->ImplicitDefs) 539fac259814923d091942b230e7bd002a8d1130bc3Craig Topper for (const uint16_t *ImpDefs = MCID->getImplicitDefs(); *ImpDefs; ++ImpDefs) 5409500e5d07ac9b94c8fed74150e444778a0dcb036Jakob Stoklund Olesen addOperand(MF, MachineOperand::CreateReg(*ImpDefs, true, true)); 541e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng if (MCID->ImplicitUses) 542fac259814923d091942b230e7bd002a8d1130bc3Craig Topper for (const uint16_t *ImpUses = MCID->getImplicitUses(); *ImpUses; ++ImpUses) 5439500e5d07ac9b94c8fed74150e444778a0dcb036Jakob Stoklund Olesen addOperand(MF, MachineOperand::CreateReg(*ImpUses, false, true)); 544d7de496b23fca8145f777a56281457bf64e8bbadEvan Cheng} 545d7de496b23fca8145f777a56281457bf64e8bbadEvan Cheng 5460855cadb00c598d4e78c8f1842a9c1b9bf19c667Bob Wilson/// MachineInstr ctor - This constructor creates a MachineInstr and adds the 5470855cadb00c598d4e78c8f1842a9c1b9bf19c667Bob Wilson/// implicit operands. It reserves space for the number of operands specified by 548e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng/// the MCInstrDesc. 5499500e5d07ac9b94c8fed74150e444778a0dcb036Jakob Stoklund OlesenMachineInstr::MachineInstr(MachineFunction &MF, const MCInstrDesc &tid, 5509500e5d07ac9b94c8fed74150e444778a0dcb036Jakob Stoklund Olesen const DebugLoc dl, bool NoImp) 551dce4a407a24b04eebc6a376f8e62b41aaa7b071fStephen Hines : MCID(&tid), Parent(nullptr), Operands(nullptr), NumOperands(0), 552f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen Flags(0), AsmPrinterFlags(0), 553dce4a407a24b04eebc6a376f8e62b41aaa7b071fStephen Hines NumMemRefs(0), MemRefs(nullptr), debugLoc(dl) { 554f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen // Reserve space for the expected number of operands. 555f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen if (unsigned NumOps = MCID->getNumOperands() + 556f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen MCID->getNumImplicitDefs() + MCID->getNumImplicitUses()) { 557f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen CapOperands = OperandCapacity::get(NumOps); 558f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen Operands = MF.allocateOperandArray(CapOperands); 559f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen } 560f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen 56106efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen if (!NoImp) 5629500e5d07ac9b94c8fed74150e444778a0dcb036Jakob Stoklund Olesen addImplicitDefUseOperands(MF); 56306efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen} 56406efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen 565ce22e76996d3ff0930716fa60c29df60a7e0481bMisha Brukman/// MachineInstr ctor - Copies MachineInstr arg exactly 566ce22e76996d3ff0930716fa60c29df60a7e0481bMisha Brukman/// 5671ed9922794cda9dbe295e74674b909287e544632Evan ChengMachineInstr::MachineInstr(MachineFunction &MF, const MachineInstr &MI) 568dce4a407a24b04eebc6a376f8e62b41aaa7b071fStephen Hines : MCID(&MI.getDesc()), Parent(nullptr), Operands(nullptr), NumOperands(0), 569f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen Flags(0), AsmPrinterFlags(0), 570861ea230a7841fe4ccc8a1cd5460354e59aeed3cBenjamin Kramer NumMemRefs(MI.NumMemRefs), MemRefs(MI.MemRefs), 571f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen debugLoc(MI.getDebugLoc()) { 572f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen CapOperands = OperandCapacity::get(MI.getNumOperands()); 573f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen Operands = MF.allocateOperandArray(CapOperands); 574b5159ed0cb7943e5938782f7693beb18342165ceTanya Lattner 57584be3d5a73313eb19f2f9e0512153cd2e6f46c54Jakob Stoklund Olesen // Copy operands. 5761ed9922794cda9dbe295e74674b909287e544632Evan Cheng for (unsigned i = 0; i != MI.getNumOperands(); ++i) 5779500e5d07ac9b94c8fed74150e444778a0dcb036Jakob Stoklund Olesen addOperand(MF, MI.getOperand(i)); 5780c63e03e04d3982e1913479bba404c3debc9a27eTanya Lattner 579bd7b36e780f99b808f8e334e26f3dae1bc7e8175Jakob Stoklund Olesen // Copy all the sensible flags. 580bd7b36e780f99b808f8e334e26f3dae1bc7e8175Jakob Stoklund Olesen setFlags(MI.Flags); 581aad5c0505183a5b7913f1a443a1f0650122551ccAlkis Evlogimenos} 582aad5c0505183a5b7913f1a443a1f0650122551ccAlkis Evlogimenos 58362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// getRegInfo - If this instruction is embedded into a MachineFunction, 58462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// return the MachineRegisterInfo object for the current function, otherwise 58562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// return null. 58662ed6b9ade63bf01717ce5274fa11e93e873d245Chris LattnerMachineRegisterInfo *MachineInstr::getRegInfo() { 58762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (MachineBasicBlock *MBB = getParent()) 5884e526b9a5b36d9bac170c03df0a5d6fb76740ae2Dan Gohman return &MBB->getParent()->getRegInfo(); 589dce4a407a24b04eebc6a376f8e62b41aaa7b071fStephen Hines return nullptr; 59062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner} 59162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 59262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// RemoveRegOperandsFromUseLists - Unlink all of the register operands in 59362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// this instruction from their respective use lists. This requires that the 59462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// operands already be on their use lists. 595ff2b99afc8cbc6cfa73181072888e0f9f07deb7eJakob Stoklund Olesenvoid MachineInstr::RemoveRegOperandsFromUseLists(MachineRegisterInfo &MRI) { 596021e3b6444e9179751002db7b20de96455e03171Jakob Stoklund Olesen for (unsigned i = 0, e = getNumOperands(); i != e; ++i) 597d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (Operands[i].isReg()) 598ff2b99afc8cbc6cfa73181072888e0f9f07deb7eJakob Stoklund Olesen MRI.removeRegOperandFromUseList(&Operands[i]); 59962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner} 60062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 60162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// AddRegOperandsToUseLists - Add all of the register operands in 60262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// this instruction from their respective use lists. This requires that the 60362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// operands not be on their use lists yet. 604ff2b99afc8cbc6cfa73181072888e0f9f07deb7eJakob Stoklund Olesenvoid MachineInstr::AddRegOperandsToUseLists(MachineRegisterInfo &MRI) { 605021e3b6444e9179751002db7b20de96455e03171Jakob Stoklund Olesen for (unsigned i = 0, e = getNumOperands(); i != e; ++i) 606d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (Operands[i].isReg()) 607ff2b99afc8cbc6cfa73181072888e0f9f07deb7eJakob Stoklund Olesen MRI.addRegOperandToUseList(&Operands[i]); 60862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner} 60962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 61056706db45bbc7be0c087451ca9f1d258324df4b2Jakob Stoklund Olesenvoid MachineInstr::addOperand(const MachineOperand &Op) { 61156706db45bbc7be0c087451ca9f1d258324df4b2Jakob Stoklund Olesen MachineBasicBlock *MBB = getParent(); 61256706db45bbc7be0c087451ca9f1d258324df4b2Jakob Stoklund Olesen assert(MBB && "Use MachineInstrBuilder to add operands to dangling instrs"); 61356706db45bbc7be0c087451ca9f1d258324df4b2Jakob Stoklund Olesen MachineFunction *MF = MBB->getParent(); 61456706db45bbc7be0c087451ca9f1d258324df4b2Jakob Stoklund Olesen assert(MF && "Use MachineInstrBuilder to add operands to dangling instrs"); 61556706db45bbc7be0c087451ca9f1d258324df4b2Jakob Stoklund Olesen addOperand(*MF, Op); 61656706db45bbc7be0c087451ca9f1d258324df4b2Jakob Stoklund Olesen} 61756706db45bbc7be0c087451ca9f1d258324df4b2Jakob Stoklund Olesen 618f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen/// Move NumOps MachineOperands from Src to Dst, with support for overlapping 619f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen/// ranges. If MRI is non-null also update use-def chains. 620f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesenstatic void moveOperands(MachineOperand *Dst, MachineOperand *Src, 621f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen unsigned NumOps, MachineRegisterInfo *MRI) { 622f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen if (MRI) 623f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen return MRI->moveOperands(Dst, Src, NumOps); 624f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen 625f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen // Here it would be convenient to call memmove, so that isn't allowed because 626f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen // MachineOperand has a constructor and so isn't a POD type. 627f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen if (Dst < Src) 628f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen for (unsigned i = 0; i != NumOps; ++i) 629f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen new (Dst + i) MachineOperand(Src[i]); 630f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen else 631f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen for (unsigned i = NumOps; i ; --i) 632f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen new (Dst + i - 1) MachineOperand(Src[i - 1]); 633f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen} 634f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen 63562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// addOperand - Add the specified operand to the instruction. If it is an 63662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// implicit operand, it is added to the end of the operand list. If it is 63762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// an explicit operand it is added at the end of the explicit operand list 638ee61d67c2f1105e23b2ea5110389f3b7b713b504Jim Grosbach/// (before the first implicit operand). 63956706db45bbc7be0c087451ca9f1d258324df4b2Jakob Stoklund Olesenvoid MachineInstr::addOperand(MachineFunction &MF, const MachineOperand &Op) { 6403627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen assert(MCID && "Cannot add operands before providing an instr descriptor"); 641bcf28c08b3f0a3c4aa1be8f1485f6452d9a2b690Dan Gohman 642f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen // Check if we're adding one of our existing operands. 643f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen if (&Op >= Operands && &Op < Operands + NumOperands) { 644f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen // This is unusual: MI->addOperand(MI->getOperand(i)). 645f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen // If adding Op requires reallocating or moving existing operands around, 646f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen // the Op reference could go stale. Support it by copying Op. 647f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen MachineOperand CopyOp(Op); 648f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen return addOperand(MF, CopyOp); 649f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen } 6503627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen 6513627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen // Find the insert location for the new operand. Implicit registers go at 652f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen // the end, everything else goes before the implicit regs. 653f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen // 6543627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen // FIXME: Allow mixed explicit and implicit operands on inline asm. 6553627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen // InstrEmitter::EmitSpecialNode() is marking inline asm clobbers as 6563627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen // implicit-defs, but they must not be moved around. See the FIXME in 6573627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen // InstrEmitter.cpp. 658f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen unsigned OpNo = getNumOperands(); 659f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen bool isImpReg = Op.isReg() && Op.isImplicit(); 6603627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen if (!isImpReg && !isInlineAsm()) { 6613627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen while (OpNo && Operands[OpNo-1].isReg() && Operands[OpNo-1].isImplicit()) { 6623627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen --OpNo; 6639c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen assert(!Operands[OpNo].isTied() && "Cannot move tied operands"); 66462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 66562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 666ee61d67c2f1105e23b2ea5110389f3b7b713b504Jim Grosbach 667d54946ac14cca14a0b4402fd7edf5271f5e74e6aPekka Jaaskelainen#ifndef NDEBUG 668862385112e4f81ca2e1ffb3e995c223ffd5328b7Pekka Jaaskelainen bool isMetaDataOp = Op.getType() == MachineOperand::MO_Metadata; 6693627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen // OpNo now points as the desired insertion point. Unless this is a variadic 6703627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen // instruction, only implicit regs are allowed beyond MCID->getNumOperands(). 67133a537a5c41e60507ac9a4ea987c1a395cbb74feJakob Stoklund Olesen // RegMask operands go between the explicit and implicit operands. 67233a537a5c41e60507ac9a4ea987c1a395cbb74feJakob Stoklund Olesen assert((isImpReg || Op.isRegMask() || MCID->isVariadic() || 673862385112e4f81ca2e1ffb3e995c223ffd5328b7Pekka Jaaskelainen OpNo < MCID->getNumOperands() || isMetaDataOp) && 6743627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen "Trying to add an operand to a machine instr that is already done!"); 675d54946ac14cca14a0b4402fd7edf5271f5e74e6aPekka Jaaskelainen#endif 67662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 677f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen MachineRegisterInfo *MRI = getRegInfo(); 678f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen 679f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen // Determine if the Operands array needs to be reallocated. 680f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen // Save the old capacity and operand array. 681f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen OperandCapacity OldCap = CapOperands; 682f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen MachineOperand *OldOperands = Operands; 683f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen if (!OldOperands || OldCap.getSize() == getNumOperands()) { 684f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen CapOperands = OldOperands ? OldCap.getNext() : OldCap.get(1); 685f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen Operands = MF.allocateOperandArray(CapOperands); 686f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen // Move the operands before the insertion point. 687f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen if (OpNo) 688f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen moveOperands(Operands, OldOperands, OpNo, MRI); 689f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen } 690f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen 691f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen // Move the operands following the insertion point. 692f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen if (OpNo != NumOperands) 693f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen moveOperands(Operands + OpNo + 1, OldOperands + OpNo, NumOperands - OpNo, 694f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen MRI); 695f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen ++NumOperands; 696f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen 697f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen // Deallocate the old operand array. 698f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen if (OldOperands != Operands && OldOperands) 699f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen MF.deallocateOperandArray(OldCap, OldOperands); 700f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen 701f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen // Copy Op into place. It still needs to be inserted into the MRI use lists. 702f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen MachineOperand *NewMO = new (Operands + OpNo) MachineOperand(Op); 703f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen NewMO->ParentMI = this; 704f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen 705f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen // When adding a register operand, tell MRI about it. 706f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen if (NewMO->isReg()) { 707ff2b99afc8cbc6cfa73181072888e0f9f07deb7eJakob Stoklund Olesen // Ensure isOnRegUseList() returns false, regardless of Op's status. 708dce4a407a24b04eebc6a376f8e62b41aaa7b071fStephen Hines NewMO->Contents.Reg.Prev = nullptr; 7099c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen // Ignore existing ties. This is not a property that can be copied. 710f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen NewMO->TiedTo = 0; 711f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen // Add the new operand to MRI, but only for instructions in an MBB. 712f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen if (MRI) 713f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen MRI->addRegOperandToUseList(NewMO); 714e941df5e354ff7d327bab8e59af687ec90fdd149Jakob Stoklund Olesen // The MCID operand information isn't accurate until we start adding 715e941df5e354ff7d327bab8e59af687ec90fdd149Jakob Stoklund Olesen // explicit operands. The implicit operands are added first, then the 716e941df5e354ff7d327bab8e59af687ec90fdd149Jakob Stoklund Olesen // explicits are inserted before them. 717e941df5e354ff7d327bab8e59af687ec90fdd149Jakob Stoklund Olesen if (!isImpReg) { 7189c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen // Tie uses to defs as indicated in MCInstrDesc. 719f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen if (NewMO->isUse()) { 720e941df5e354ff7d327bab8e59af687ec90fdd149Jakob Stoklund Olesen int DefIdx = MCID->getOperandConstraint(OpNo, MCOI::TIED_TO); 72194083149fd6891c8a72472cf1814fa6600a75979Jakob Stoklund Olesen if (DefIdx != -1) 72294083149fd6891c8a72472cf1814fa6600a75979Jakob Stoklund Olesen tieOperands(DefIdx, OpNo); 7234ba6916a98fffd9dedac5945ac51d40c8948069eJakob Stoklund Olesen } 724e941df5e354ff7d327bab8e59af687ec90fdd149Jakob Stoklund Olesen // If the register operand is flagged as early, mark the operand as such. 725e941df5e354ff7d327bab8e59af687ec90fdd149Jakob Stoklund Olesen if (MCID->getOperandConstraint(OpNo, MCOI::EARLY_CLOBBER) != -1) 726f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen NewMO->setIsEarlyClobber(true); 72762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 72862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 72962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner} 73062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 73162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// RemoveOperand - Erase an operand from an instruction, leaving it with one 73262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// fewer operand than it started with. 73362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// 73462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattnervoid MachineInstr::RemoveOperand(unsigned OpNo) { 735021e3b6444e9179751002db7b20de96455e03171Jakob Stoklund Olesen assert(OpNo < getNumOperands() && "Invalid operand number"); 736699ac049517285d978ed607b2735976c5ae97ac0Jakob Stoklund Olesen untieRegOperand(OpNo); 737ee61d67c2f1105e23b2ea5110389f3b7b713b504Jim Grosbach 7389c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen#ifndef NDEBUG 7399c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen // Moving tied operands would break the ties. 740021e3b6444e9179751002db7b20de96455e03171Jakob Stoklund Olesen for (unsigned i = OpNo + 1, e = getNumOperands(); i != e; ++i) 7419c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen if (Operands[i].isReg()) 7429c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen assert(!Operands[i].isTied() && "Cannot move tied operands"); 7439c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen#endif 7449c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen 745f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen MachineRegisterInfo *MRI = getRegInfo(); 746f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen if (MRI && Operands[OpNo].isReg()) 747f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen MRI->removeRegOperandFromUseList(Operands + OpNo); 74862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 749f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen // Don't call the MachineOperand destructor. A lot of this code depends on 750f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen // MachineOperand having a trivial destructor anyway, and adding a call here 751f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen // wouldn't make it 'destructor-correct'. 752f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen 753f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen if (unsigned N = NumOperands - 1 - OpNo) 754f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen moveOperands(Operands + OpNo, Operands + OpNo + 1, N, MRI); 755f1d015f3429f611c423f943c75f86e6823810dc3Jakob Stoklund Olesen --NumOperands; 75662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner} 75762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 758c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman/// addMemOperand - Add a MachineMemOperand to the machine instruction. 759c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman/// This function should be used only occasionally. The setMemRefs function 760c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman/// is the primary method for setting up a MachineInstr's MemRefs list. 7618e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohmanvoid MachineInstr::addMemOperand(MachineFunction &MF, 762c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman MachineMemOperand *MO) { 763c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman mmo_iterator OldMemRefs = MemRefs; 764b2c79f2f630ed3e7da31ff8adb3014fb0ab47412Jakob Stoklund Olesen unsigned OldNumMemRefs = NumMemRefs; 7658e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman 766b2c79f2f630ed3e7da31ff8adb3014fb0ab47412Jakob Stoklund Olesen unsigned NewNum = NumMemRefs + 1; 767c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman mmo_iterator NewMemRefs = MF.allocateMemRefsArray(NewNum); 7688e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman 769861ea230a7841fe4ccc8a1cd5460354e59aeed3cBenjamin Kramer std::copy(OldMemRefs, OldMemRefs + OldNumMemRefs, NewMemRefs); 770c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman NewMemRefs[NewNum - 1] = MO; 771b2c79f2f630ed3e7da31ff8adb3014fb0ab47412Jakob Stoklund Olesen setMemRefs(NewMemRefs, NewMemRefs + NewNum); 772c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman} 77362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 77485f9cef27e6b2605e67e94afc949f5b5f5b90668Benjamin Kramerbool MachineInstr::hasPropertyInBundle(unsigned Mask, QueryType Type) const { 7754aebce83212d7271454c8767085645fe11054b44Jakob Stoklund Olesen assert(!isBundledWithPred() && "Must be called on bundle header"); 776b11f05043465bceae4853a3bd2c01d7d664cc5e3Jakob Stoklund Olesen for (MachineBasicBlock::const_instr_iterator MII = this;; ++MII) { 77785f9cef27e6b2605e67e94afc949f5b5f5b90668Benjamin Kramer if (MII->getDesc().getFlags() & Mask) { 77843d5d4ca1c93529c43e78cc5aa03c4ee10a6b0d8Evan Cheng if (Type == AnyInBundle) 7795a96b3dad2f634c9081c8b2b6c2575441dc5a2bdEvan Cheng return true; 7805a96b3dad2f634c9081c8b2b6c2575441dc5a2bdEvan Cheng } else { 781b11f05043465bceae4853a3bd2c01d7d664cc5e3Jakob Stoklund Olesen if (Type == AllInBundle && !MII->isBundle()) 7825a96b3dad2f634c9081c8b2b6c2575441dc5a2bdEvan Cheng return false; 7835a96b3dad2f634c9081c8b2b6c2575441dc5a2bdEvan Cheng } 784b11f05043465bceae4853a3bd2c01d7d664cc5e3Jakob Stoklund Olesen // This was the last instruction in the bundle. 785b11f05043465bceae4853a3bd2c01d7d664cc5e3Jakob Stoklund Olesen if (!MII->isBundledWithSucc()) 786b11f05043465bceae4853a3bd2c01d7d664cc5e3Jakob Stoklund Olesen return Type == AllInBundle; 7877c2a4a30e0e16762c75adacebd05ec9fcbccf16bEvan Cheng } 7887c2a4a30e0e16762c75adacebd05ec9fcbccf16bEvan Cheng} 7897c2a4a30e0e16762c75adacebd05ec9fcbccf16bEvan Cheng 790506049f29f4f202a8e45feb916cc0264440a7f6dEvan Chengbool MachineInstr::isIdenticalTo(const MachineInstr *Other, 791506049f29f4f202a8e45feb916cc0264440a7f6dEvan Cheng MICheckType Check) const { 79234cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng // If opcodes or number of operands are not the same then the two 79334cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng // instructions are obviously not identical. 79434cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng if (Other->getOpcode() != getOpcode() || 79534cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng Other->getNumOperands() != getNumOperands()) 79634cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng return false; 79734cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng 798ddfd1377d2e4154d44dc3ad217735adc15af2e3fEvan Cheng if (isBundle()) { 799ddfd1377d2e4154d44dc3ad217735adc15af2e3fEvan Cheng // Both instructions are bundles, compare MIs inside the bundle. 800ddfd1377d2e4154d44dc3ad217735adc15af2e3fEvan Cheng MachineBasicBlock::const_instr_iterator I1 = *this; 801ddfd1377d2e4154d44dc3ad217735adc15af2e3fEvan Cheng MachineBasicBlock::const_instr_iterator E1 = getParent()->instr_end(); 802ddfd1377d2e4154d44dc3ad217735adc15af2e3fEvan Cheng MachineBasicBlock::const_instr_iterator I2 = *Other; 803ddfd1377d2e4154d44dc3ad217735adc15af2e3fEvan Cheng MachineBasicBlock::const_instr_iterator E2= Other->getParent()->instr_end(); 804ddfd1377d2e4154d44dc3ad217735adc15af2e3fEvan Cheng while (++I1 != E1 && I1->isInsideBundle()) { 805ddfd1377d2e4154d44dc3ad217735adc15af2e3fEvan Cheng ++I2; 806ddfd1377d2e4154d44dc3ad217735adc15af2e3fEvan Cheng if (I2 == E2 || !I2->isInsideBundle() || !I1->isIdenticalTo(I2, Check)) 807ddfd1377d2e4154d44dc3ad217735adc15af2e3fEvan Cheng return false; 808ddfd1377d2e4154d44dc3ad217735adc15af2e3fEvan Cheng } 809ddfd1377d2e4154d44dc3ad217735adc15af2e3fEvan Cheng } 810ddfd1377d2e4154d44dc3ad217735adc15af2e3fEvan Cheng 81134cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng // Check operands to make sure they match. 81234cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 81334cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng const MachineOperand &MO = getOperand(i); 81434cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng const MachineOperand &OMO = Other->getOperand(i); 815cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng if (!MO.isReg()) { 816cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng if (!MO.isIdenticalTo(OMO)) 817cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng return false; 818cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng continue; 819cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng } 820cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng 82134cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng // Clients may or may not want to ignore defs when testing for equality. 82234cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng // For example, machine CSE pass only cares about finding common 82334cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng // subexpressions, so it's safe to ignore virtual register defs. 824cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng if (MO.isDef()) { 82534cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng if (Check == IgnoreDefs) 82634cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng continue; 827cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng else if (Check == IgnoreVRegDefs) { 828cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng if (TargetRegisterInfo::isPhysicalRegister(MO.getReg()) || 829cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng TargetRegisterInfo::isPhysicalRegister(OMO.getReg())) 830cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng if (MO.getReg() != OMO.getReg()) 831cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng return false; 832cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng } else { 833cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng if (!MO.isIdenticalTo(OMO)) 834cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng return false; 835cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng if (Check == CheckKillDead && MO.isDead() != OMO.isDead()) 83634cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng return false; 837cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng } 838cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng } else { 839cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng if (!MO.isIdenticalTo(OMO)) 840cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng return false; 841cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng if (Check == CheckKillDead && MO.isKill() != OMO.isKill()) 842cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng return false; 843cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng } 84434cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng } 8459194c6716be13e2b8d2cf8e45273bf6c79f8b32cDevang Patel // If DebugLoc does not match then two dbg.values are not identical. 8469194c6716be13e2b8d2cf8e45273bf6c79f8b32cDevang Patel if (isDebugValue()) 8479194c6716be13e2b8d2cf8e45273bf6c79f8b32cDevang Patel if (!getDebugLoc().isUnknown() && !Other->getDebugLoc().isUnknown() 8489194c6716be13e2b8d2cf8e45273bf6c79f8b32cDevang Patel && getDebugLoc() != Other->getDebugLoc()) 8499194c6716be13e2b8d2cf8e45273bf6c79f8b32cDevang Patel return false; 85034cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng return true; 851506049f29f4f202a8e45feb916cc0264440a7f6dEvan Cheng} 852506049f29f4f202a8e45feb916cc0264440a7f6dEvan Cheng 85348d7c069c76882475c23de153bda9483cd3c9bb4Chris LattnerMachineInstr *MachineInstr::removeFromParent() { 85448d7c069c76882475c23de153bda9483cd3c9bb4Chris Lattner assert(getParent() && "Not embedded in a basic block!"); 8559f4692d2953b47e9037ccfe5709a6e75de3911d4Jakob Stoklund Olesen return getParent()->remove(this); 85648d7c069c76882475c23de153bda9483cd3c9bb4Chris Lattner} 85748d7c069c76882475c23de153bda9483cd3c9bb4Chris Lattner 8589f4692d2953b47e9037ccfe5709a6e75de3911d4Jakob Stoklund OlesenMachineInstr *MachineInstr::removeFromBundle() { 8599f4692d2953b47e9037ccfe5709a6e75de3911d4Jakob Stoklund Olesen assert(getParent() && "Not embedded in a basic block!"); 8609f4692d2953b47e9037ccfe5709a6e75de3911d4Jakob Stoklund Olesen return getParent()->remove_instr(this); 8619f4692d2953b47e9037ccfe5709a6e75de3911d4Jakob Stoklund Olesen} 86248d7c069c76882475c23de153bda9483cd3c9bb4Chris Lattner 8638e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohmanvoid MachineInstr::eraseFromParent() { 8648e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman assert(getParent() && "Not embedded in a basic block!"); 8659f4692d2953b47e9037ccfe5709a6e75de3911d4Jakob Stoklund Olesen getParent()->erase(this); 8668e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman} 8678e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman 8689f4692d2953b47e9037ccfe5709a6e75de3911d4Jakob Stoklund Olesenvoid MachineInstr::eraseFromBundle() { 8699f4692d2953b47e9037ccfe5709a6e75de3911d4Jakob Stoklund Olesen assert(getParent() && "Not embedded in a basic block!"); 8709f4692d2953b47e9037ccfe5709a6e75de3911d4Jakob Stoklund Olesen getParent()->erase_instr(this); 8719f4692d2953b47e9037ccfe5709a6e75de3911d4Jakob Stoklund Olesen} 8728e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman 87319e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng/// getNumExplicitOperands - Returns the number of non-implicit operands. 87419e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng/// 87519e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Chengunsigned MachineInstr::getNumExplicitOperands() const { 876e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng unsigned NumOperands = MCID->getNumOperands(); 877e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng if (!MCID->isVariadic()) 87819e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng return NumOperands; 87919e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng 8809407cd4ede3e2c090b958778d0fdbdac8b2dbec4Dan Gohman for (unsigned i = NumOperands, e = getNumOperands(); i != e; ++i) { 8819407cd4ede3e2c090b958778d0fdbdac8b2dbec4Dan Gohman const MachineOperand &MO = getOperand(i); 882d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (!MO.isReg() || !MO.isImplicit()) 88319e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng NumOperands++; 88419e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng } 88519e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng return NumOperands; 88619e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng} 88719e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng 888fad649a5b173f8cfdbbbbde8649ed66afd1129c1Jakob Stoklund Olesenvoid MachineInstr::bundleWithPred() { 889fad649a5b173f8cfdbbbbde8649ed66afd1129c1Jakob Stoklund Olesen assert(!isBundledWithPred() && "MI is already bundled with its predecessor"); 890fad649a5b173f8cfdbbbbde8649ed66afd1129c1Jakob Stoklund Olesen setFlag(BundledPred); 891fad649a5b173f8cfdbbbbde8649ed66afd1129c1Jakob Stoklund Olesen MachineBasicBlock::instr_iterator Pred = this; 892fad649a5b173f8cfdbbbbde8649ed66afd1129c1Jakob Stoklund Olesen --Pred; 893582abddeee6bd49762d562d3e641a4e290d464beJakob Stoklund Olesen assert(!Pred->isBundledWithSucc() && "Inconsistent bundle flags"); 894fad649a5b173f8cfdbbbbde8649ed66afd1129c1Jakob Stoklund Olesen Pred->setFlag(BundledSucc); 895fad649a5b173f8cfdbbbbde8649ed66afd1129c1Jakob Stoklund Olesen} 896fad649a5b173f8cfdbbbbde8649ed66afd1129c1Jakob Stoklund Olesen 897fad649a5b173f8cfdbbbbde8649ed66afd1129c1Jakob Stoklund Olesenvoid MachineInstr::bundleWithSucc() { 898fad649a5b173f8cfdbbbbde8649ed66afd1129c1Jakob Stoklund Olesen assert(!isBundledWithSucc() && "MI is already bundled with its successor"); 899fad649a5b173f8cfdbbbbde8649ed66afd1129c1Jakob Stoklund Olesen setFlag(BundledSucc); 900fad649a5b173f8cfdbbbbde8649ed66afd1129c1Jakob Stoklund Olesen MachineBasicBlock::instr_iterator Succ = this; 901fad649a5b173f8cfdbbbbde8649ed66afd1129c1Jakob Stoklund Olesen ++Succ; 902582abddeee6bd49762d562d3e641a4e290d464beJakob Stoklund Olesen assert(!Succ->isBundledWithPred() && "Inconsistent bundle flags"); 903fad649a5b173f8cfdbbbbde8649ed66afd1129c1Jakob Stoklund Olesen Succ->setFlag(BundledPred); 904fad649a5b173f8cfdbbbbde8649ed66afd1129c1Jakob Stoklund Olesen} 905fad649a5b173f8cfdbbbbde8649ed66afd1129c1Jakob Stoklund Olesen 906fad649a5b173f8cfdbbbbde8649ed66afd1129c1Jakob Stoklund Olesenvoid MachineInstr::unbundleFromPred() { 907fad649a5b173f8cfdbbbbde8649ed66afd1129c1Jakob Stoklund Olesen assert(isBundledWithPred() && "MI isn't bundled with its predecessor"); 908fad649a5b173f8cfdbbbbde8649ed66afd1129c1Jakob Stoklund Olesen clearFlag(BundledPred); 909fad649a5b173f8cfdbbbbde8649ed66afd1129c1Jakob Stoklund Olesen MachineBasicBlock::instr_iterator Pred = this; 910fad649a5b173f8cfdbbbbde8649ed66afd1129c1Jakob Stoklund Olesen --Pred; 911582abddeee6bd49762d562d3e641a4e290d464beJakob Stoklund Olesen assert(Pred->isBundledWithSucc() && "Inconsistent bundle flags"); 912fad649a5b173f8cfdbbbbde8649ed66afd1129c1Jakob Stoklund Olesen Pred->clearFlag(BundledSucc); 913fad649a5b173f8cfdbbbbde8649ed66afd1129c1Jakob Stoklund Olesen} 914fad649a5b173f8cfdbbbbde8649ed66afd1129c1Jakob Stoklund Olesen 915fad649a5b173f8cfdbbbbde8649ed66afd1129c1Jakob Stoklund Olesenvoid MachineInstr::unbundleFromSucc() { 916fad649a5b173f8cfdbbbbde8649ed66afd1129c1Jakob Stoklund Olesen assert(isBundledWithSucc() && "MI isn't bundled with its successor"); 917fad649a5b173f8cfdbbbbde8649ed66afd1129c1Jakob Stoklund Olesen clearFlag(BundledSucc); 918fad649a5b173f8cfdbbbbde8649ed66afd1129c1Jakob Stoklund Olesen MachineBasicBlock::instr_iterator Succ = this; 91912cd49ae1d3c8f45f3e41b6cce681b667b99ef07Sergei Larin ++Succ; 920582abddeee6bd49762d562d3e641a4e290d464beJakob Stoklund Olesen assert(Succ->isBundledWithPred() && "Inconsistent bundle flags"); 921fad649a5b173f8cfdbbbbde8649ed66afd1129c1Jakob Stoklund Olesen Succ->clearFlag(BundledPred); 922fad649a5b173f8cfdbbbbde8649ed66afd1129c1Jakob Stoklund Olesen} 923fad649a5b173f8cfdbbbbde8649ed66afd1129c1Jakob Stoklund Olesen 924c36b7069b42bece963b7e6adf020353ce990ef76Evan Chengbool MachineInstr::isStackAligningInlineAsm() const { 925c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng if (isInlineAsm()) { 926c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng unsigned ExtraInfo = getOperand(InlineAsm::MIOp_ExtraInfo).getImm(); 927c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng if (ExtraInfo & InlineAsm::Extra_IsAlignStack) 928c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng return true; 929c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng } 930c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng return false; 931c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng} 9328ace2cd034be10c09be51daf08c3dda327f54262Chris Lattner 933576cd11ab8035d4240f7e6ea8d7c6c2e45154f86Chad RosierInlineAsm::AsmDialect MachineInstr::getInlineAsmDialect() const { 934576cd11ab8035d4240f7e6ea8d7c6c2e45154f86Chad Rosier assert(isInlineAsm() && "getInlineAsmDialect() only works for inline asms!"); 935576cd11ab8035d4240f7e6ea8d7c6c2e45154f86Chad Rosier unsigned ExtraInfo = getOperand(InlineAsm::MIOp_ExtraInfo).getImm(); 9362f1d8154795ad82e500fda27d75ec1449e7a0648Chad Rosier return InlineAsm::AsmDialect((ExtraInfo & InlineAsm::Extra_AsmDialect) != 0); 937576cd11ab8035d4240f7e6ea8d7c6c2e45154f86Chad Rosier} 938576cd11ab8035d4240f7e6ea8d7c6c2e45154f86Chad Rosier 9399dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesenint MachineInstr::findInlineAsmFlagIdx(unsigned OpIdx, 9409dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen unsigned *GroupNo) const { 9419dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen assert(isInlineAsm() && "Expected an inline asm instruction"); 9429dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen assert(OpIdx < getNumOperands() && "OpIdx out of range"); 9439dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen 9449dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen // Ignore queries about the initial operands. 9459dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen if (OpIdx < InlineAsm::MIOp_FirstOperand) 9469dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen return -1; 9479dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen 9489dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen unsigned Group = 0; 9499dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen unsigned NumOps; 9509dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen for (unsigned i = InlineAsm::MIOp_FirstOperand, e = getNumOperands(); i < e; 9519dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen i += NumOps) { 9529dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen const MachineOperand &FlagMO = getOperand(i); 9539dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen // If we reach the implicit register operands, stop looking. 9549dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen if (!FlagMO.isImm()) 9559dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen return -1; 9569dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen NumOps = 1 + InlineAsm::getNumOperandRegisters(FlagMO.getImm()); 9579dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen if (i + NumOps > OpIdx) { 9589dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen if (GroupNo) 9599dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen *GroupNo = Group; 9609dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen return i; 9619dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen } 9629dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen ++Group; 9639dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen } 9649dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen return -1; 9659dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen} 9669dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen 967f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund Olesenconst TargetRegisterClass* 968f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund OlesenMachineInstr::getRegClassConstraint(unsigned OpIdx, 969f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund Olesen const TargetInstrInfo *TII, 970f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund Olesen const TargetRegisterInfo *TRI) const { 971397fc4874efe9c17e737d4c5c50bd19dc3bf27f5Jakob Stoklund Olesen assert(getParent() && "Can't have an MBB reference here!"); 972397fc4874efe9c17e737d4c5c50bd19dc3bf27f5Jakob Stoklund Olesen assert(getParent()->getParent() && "Can't have an MF reference here!"); 973397fc4874efe9c17e737d4c5c50bd19dc3bf27f5Jakob Stoklund Olesen const MachineFunction &MF = *getParent()->getParent(); 974397fc4874efe9c17e737d4c5c50bd19dc3bf27f5Jakob Stoklund Olesen 975f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund Olesen // Most opcodes have fixed constraints in their MCInstrDesc. 976f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund Olesen if (!isInlineAsm()) 977397fc4874efe9c17e737d4c5c50bd19dc3bf27f5Jakob Stoklund Olesen return TII->getRegClass(getDesc(), OpIdx, TRI, MF); 978f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund Olesen 979f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund Olesen if (!getOperand(OpIdx).isReg()) 980dce4a407a24b04eebc6a376f8e62b41aaa7b071fStephen Hines return nullptr; 981f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund Olesen 982f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund Olesen // For tied uses on inline asm, get the constraint from the def. 983f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund Olesen unsigned DefIdx; 984f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund Olesen if (getOperand(OpIdx).isUse() && isRegTiedToDefOperand(OpIdx, &DefIdx)) 985f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund Olesen OpIdx = DefIdx; 986f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund Olesen 987f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund Olesen // Inline asm stores register class constraints in the flag word. 988f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund Olesen int FlagIdx = findInlineAsmFlagIdx(OpIdx); 989f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund Olesen if (FlagIdx < 0) 990dce4a407a24b04eebc6a376f8e62b41aaa7b071fStephen Hines return nullptr; 991f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund Olesen 992f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund Olesen unsigned Flag = getOperand(FlagIdx).getImm(); 993f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund Olesen unsigned RCID; 994f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund Olesen if (InlineAsm::hasRegClassConstraint(Flag, RCID)) 995f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund Olesen return TRI->getRegClass(RCID); 996f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund Olesen 997f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund Olesen // Assume that all registers in a memory operand are pointers. 998f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund Olesen if (InlineAsm::getKind(Flag) == InlineAsm::Kind_Mem) 999397fc4874efe9c17e737d4c5c50bd19dc3bf27f5Jakob Stoklund Olesen return TRI->getPointerRegClass(MF); 1000f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund Olesen 1001dce4a407a24b04eebc6a376f8e62b41aaa7b071fStephen Hines return nullptr; 1002f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund Olesen} 1003f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund Olesen 100436b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hinesconst TargetRegisterClass *MachineInstr::getRegClassConstraintEffectForVReg( 100536b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines unsigned Reg, const TargetRegisterClass *CurRC, const TargetInstrInfo *TII, 100636b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines const TargetRegisterInfo *TRI, bool ExploreBundle) const { 100736b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines // Check every operands inside the bundle if we have 100836b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines // been asked to. 100936b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines if (ExploreBundle) 101036b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines for (ConstMIBundleOperands OpndIt(this); OpndIt.isValid() && CurRC; 101136b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines ++OpndIt) 101236b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines CurRC = OpndIt->getParent()->getRegClassConstraintEffectForVRegImpl( 101336b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines OpndIt.getOperandNo(), Reg, CurRC, TII, TRI); 101436b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines else 101536b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines // Otherwise, just check the current operands. 101636b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines for (ConstMIOperands OpndIt(this); OpndIt.isValid() && CurRC; ++OpndIt) 101736b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines CurRC = getRegClassConstraintEffectForVRegImpl(OpndIt.getOperandNo(), Reg, 101836b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines CurRC, TII, TRI); 101936b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines return CurRC; 102036b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines} 102136b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines 102236b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hinesconst TargetRegisterClass *MachineInstr::getRegClassConstraintEffectForVRegImpl( 102336b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines unsigned OpIdx, unsigned Reg, const TargetRegisterClass *CurRC, 102436b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines const TargetInstrInfo *TII, const TargetRegisterInfo *TRI) const { 102536b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines assert(CurRC && "Invalid initial register class"); 102636b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines // Check if Reg is constrained by some of its use/def from MI. 102736b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines const MachineOperand &MO = getOperand(OpIdx); 102836b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines if (!MO.isReg() || MO.getReg() != Reg) 102936b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines return CurRC; 103036b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines // If yes, accumulate the constraints through the operand. 103136b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines return getRegClassConstraintEffect(OpIdx, CurRC, TII, TRI); 103236b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines} 103336b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines 103436b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hinesconst TargetRegisterClass *MachineInstr::getRegClassConstraintEffect( 103536b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines unsigned OpIdx, const TargetRegisterClass *CurRC, 103636b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines const TargetInstrInfo *TII, const TargetRegisterInfo *TRI) const { 103736b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines const TargetRegisterClass *OpRC = getRegClassConstraint(OpIdx, TII, TRI); 103836b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines const MachineOperand &MO = getOperand(OpIdx); 103936b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines assert(MO.isReg() && 104036b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines "Cannot get register constraints for non-register operand"); 104136b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines assert(CurRC && "Invalid initial register class"); 104236b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines if (unsigned SubIdx = MO.getSubReg()) { 104336b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines if (OpRC) 104436b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines CurRC = TRI->getMatchingSuperRegClass(CurRC, OpRC, SubIdx); 104536b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines else 104636b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines CurRC = TRI->getSubClassWithSubReg(CurRC, SubIdx); 104736b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines } else if (OpRC) 104836b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines CurRC = TRI->getCommonSubClass(CurRC, OpRC); 104936b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines return CurRC; 105036b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines} 105136b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines 105225377c8c6dafd094f17833f2c37daff0b77a16fcJakob Stoklund Olesen/// Return the number of instructions inside the MI bundle, not counting the 105325377c8c6dafd094f17833f2c37daff0b77a16fcJakob Stoklund Olesen/// header instruction. 1054ddfd1377d2e4154d44dc3ad217735adc15af2e3fEvan Chengunsigned MachineInstr::getBundleSize() const { 105525377c8c6dafd094f17833f2c37daff0b77a16fcJakob Stoklund Olesen MachineBasicBlock::const_instr_iterator I = this; 1056ddfd1377d2e4154d44dc3ad217735adc15af2e3fEvan Cheng unsigned Size = 0; 105725377c8c6dafd094f17833f2c37daff0b77a16fcJakob Stoklund Olesen while (I->isBundledWithSucc()) 105825377c8c6dafd094f17833f2c37daff0b77a16fcJakob Stoklund Olesen ++Size, ++I; 1059ddfd1377d2e4154d44dc3ad217735adc15af2e3fEvan Cheng return Size; 1060ddfd1377d2e4154d44dc3ad217735adc15af2e3fEvan Cheng} 1061ddfd1377d2e4154d44dc3ad217735adc15af2e3fEvan Cheng 1062faa510726f4b40aa4495e60e4d341c6467e3fb01Evan Cheng/// findRegisterUseOperandIdx() - Returns the MachineOperand that is a use of 1063f9ca50e3dce88b2f9e2f2f0cac2d3ed78afda841Jim Grosbach/// the specific register or -1 if it is not found. It further tightens 106476d7e76c15c258ec4a71fd75a2a32bca3a5e5e27Evan Cheng/// the search criteria to a use that kills the register if isKill is true. 10656130f66eaae89f8878590796977678afa8448926Evan Chengint MachineInstr::findRegisterUseOperandIdx(unsigned Reg, bool isKill, 10666130f66eaae89f8878590796977678afa8448926Evan Cheng const TargetRegisterInfo *TRI) const { 1067576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 1068f277ee4be7edabb759a7f78138b693d72d0c263fEvan Cheng const MachineOperand &MO = getOperand(i); 1069d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (!MO.isReg() || !MO.isUse()) 10706130f66eaae89f8878590796977678afa8448926Evan Cheng continue; 10716130f66eaae89f8878590796977678afa8448926Evan Cheng unsigned MOReg = MO.getReg(); 10726130f66eaae89f8878590796977678afa8448926Evan Cheng if (!MOReg) 10736130f66eaae89f8878590796977678afa8448926Evan Cheng continue; 10746130f66eaae89f8878590796977678afa8448926Evan Cheng if (MOReg == Reg || 10756130f66eaae89f8878590796977678afa8448926Evan Cheng (TRI && 10766130f66eaae89f8878590796977678afa8448926Evan Cheng TargetRegisterInfo::isPhysicalRegister(MOReg) && 10776130f66eaae89f8878590796977678afa8448926Evan Cheng TargetRegisterInfo::isPhysicalRegister(Reg) && 10786130f66eaae89f8878590796977678afa8448926Evan Cheng TRI->isSubRegister(MOReg, Reg))) 107976d7e76c15c258ec4a71fd75a2a32bca3a5e5e27Evan Cheng if (!isKill || MO.isKill()) 108032eb1f1ca4220d2f24916e587ad7e8574d7d82a1Evan Cheng return i; 1081b371f457b0ea4a652a9f526ba4375c80ae542252Evan Cheng } 108232eb1f1ca4220d2f24916e587ad7e8574d7d82a1Evan Cheng return -1; 1083b371f457b0ea4a652a9f526ba4375c80ae542252Evan Cheng} 10847ebc4d63db05ac214d36bc01b4d60adadaf923e5Jakob Stoklund Olesen 108518b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesen/// readsWritesVirtualRegister - Return a pair of bools (reads, writes) 108618b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesen/// indicating if this instruction reads or writes Reg. This also considers 108718b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesen/// partial defines. 108818b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesenstd::pair<bool,bool> 108918b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund OlesenMachineInstr::readsWritesVirtualRegister(unsigned Reg, 109018b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesen SmallVectorImpl<unsigned> *Ops) const { 109118b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesen bool PartDef = false; // Partial redefine. 109218b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesen bool FullDef = false; // Full define. 109318b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesen bool Use = false; 10947ebc4d63db05ac214d36bc01b4d60adadaf923e5Jakob Stoklund Olesen 10957ebc4d63db05ac214d36bc01b4d60adadaf923e5Jakob Stoklund Olesen for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 10967ebc4d63db05ac214d36bc01b4d60adadaf923e5Jakob Stoklund Olesen const MachineOperand &MO = getOperand(i); 10977ebc4d63db05ac214d36bc01b4d60adadaf923e5Jakob Stoklund Olesen if (!MO.isReg() || MO.getReg() != Reg) 10987ebc4d63db05ac214d36bc01b4d60adadaf923e5Jakob Stoklund Olesen continue; 109918b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesen if (Ops) 110018b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesen Ops->push_back(i); 11017ebc4d63db05ac214d36bc01b4d60adadaf923e5Jakob Stoklund Olesen if (MO.isUse()) 110218b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesen Use |= !MO.isUndef(); 1103201f2463a72f88121a3a31e7386029e99d2d75daJakob Stoklund Olesen else if (MO.getSubReg() && !MO.isUndef()) 1104201f2463a72f88121a3a31e7386029e99d2d75daJakob Stoklund Olesen // A partial <def,undef> doesn't count as reading the register. 11057ebc4d63db05ac214d36bc01b4d60adadaf923e5Jakob Stoklund Olesen PartDef = true; 11067ebc4d63db05ac214d36bc01b4d60adadaf923e5Jakob Stoklund Olesen else 11077ebc4d63db05ac214d36bc01b4d60adadaf923e5Jakob Stoklund Olesen FullDef = true; 11087ebc4d63db05ac214d36bc01b4d60adadaf923e5Jakob Stoklund Olesen } 110918b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesen // A partial redefine uses Reg unless there is also a full define. 111018b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesen return std::make_pair(Use || (PartDef && !FullDef), PartDef || FullDef); 11117ebc4d63db05ac214d36bc01b4d60adadaf923e5Jakob Stoklund Olesen} 11127ebc4d63db05ac214d36bc01b4d60adadaf923e5Jakob Stoklund Olesen 11136130f66eaae89f8878590796977678afa8448926Evan Cheng/// findRegisterDefOperandIdx() - Returns the operand index that is a def of 1114703bfe69092e8da79fbef2fc5ca07b805ad9f753Dan Gohman/// the specified register or -1 if it is not found. If isDead is true, defs 1115703bfe69092e8da79fbef2fc5ca07b805ad9f753Dan Gohman/// that are not dead are skipped. If TargetRegisterInfo is non-null, then it 1116703bfe69092e8da79fbef2fc5ca07b805ad9f753Dan Gohman/// also checks if there is a def of a super-register. 11171015ba7018c87f48cc7bb45a564eb4a27241e76aEvan Chengint 11181015ba7018c87f48cc7bb45a564eb4a27241e76aEvan ChengMachineInstr::findRegisterDefOperandIdx(unsigned Reg, bool isDead, bool Overlap, 11191015ba7018c87f48cc7bb45a564eb4a27241e76aEvan Cheng const TargetRegisterInfo *TRI) const { 11201015ba7018c87f48cc7bb45a564eb4a27241e76aEvan Cheng bool isPhys = TargetRegisterInfo::isPhysicalRegister(Reg); 1121b371f457b0ea4a652a9f526ba4375c80ae542252Evan Cheng for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 11226130f66eaae89f8878590796977678afa8448926Evan Cheng const MachineOperand &MO = getOperand(i); 11231cf8b0f2a5435d8444b6cc7d4a27eef424398273Jakob Stoklund Olesen // Accept regmask operands when Overlap is set. 11241cf8b0f2a5435d8444b6cc7d4a27eef424398273Jakob Stoklund Olesen // Ignore them when looking for a specific def operand (Overlap == false). 11251cf8b0f2a5435d8444b6cc7d4a27eef424398273Jakob Stoklund Olesen if (isPhys && Overlap && MO.isRegMask() && MO.clobbersPhysReg(Reg)) 11261cf8b0f2a5435d8444b6cc7d4a27eef424398273Jakob Stoklund Olesen return i; 1127d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (!MO.isReg() || !MO.isDef()) 11286130f66eaae89f8878590796977678afa8448926Evan Cheng continue; 11296130f66eaae89f8878590796977678afa8448926Evan Cheng unsigned MOReg = MO.getReg(); 11301015ba7018c87f48cc7bb45a564eb4a27241e76aEvan Cheng bool Found = (MOReg == Reg); 11311015ba7018c87f48cc7bb45a564eb4a27241e76aEvan Cheng if (!Found && TRI && isPhys && 11321015ba7018c87f48cc7bb45a564eb4a27241e76aEvan Cheng TargetRegisterInfo::isPhysicalRegister(MOReg)) { 11331015ba7018c87f48cc7bb45a564eb4a27241e76aEvan Cheng if (Overlap) 11341015ba7018c87f48cc7bb45a564eb4a27241e76aEvan Cheng Found = TRI->regsOverlap(MOReg, Reg); 11351015ba7018c87f48cc7bb45a564eb4a27241e76aEvan Cheng else 11361015ba7018c87f48cc7bb45a564eb4a27241e76aEvan Cheng Found = TRI->isSubRegister(MOReg, Reg); 11371015ba7018c87f48cc7bb45a564eb4a27241e76aEvan Cheng } 11381015ba7018c87f48cc7bb45a564eb4a27241e76aEvan Cheng if (Found && (!isDead || MO.isDead())) 11391015ba7018c87f48cc7bb45a564eb4a27241e76aEvan Cheng return i; 1140576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng } 11416130f66eaae89f8878590796977678afa8448926Evan Cheng return -1; 1142576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng} 114319e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng 1144f277ee4be7edabb759a7f78138b693d72d0c263fEvan Cheng/// findFirstPredOperandIdx() - Find the index of the first operand in the 1145f277ee4be7edabb759a7f78138b693d72d0c263fEvan Cheng/// operand list that is used to represent the predicate. It returns -1 if 1146f277ee4be7edabb759a7f78138b693d72d0c263fEvan Cheng/// none is found. 1147f277ee4be7edabb759a7f78138b693d72d0c263fEvan Chengint MachineInstr::findFirstPredOperandIdx() const { 1148f8e1e3e729473b8b2b7ee6134b6417976af84d05Jim Grosbach // Don't call MCID.findFirstPredOperandIdx() because this variant 1149f8e1e3e729473b8b2b7ee6134b6417976af84d05Jim Grosbach // is sometimes called on an instruction that's not yet complete, and 1150f8e1e3e729473b8b2b7ee6134b6417976af84d05Jim Grosbach // so the number of operands is less than the MCID indicates. In 1151f8e1e3e729473b8b2b7ee6134b6417976af84d05Jim Grosbach // particular, the PTX target does this. 1152e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng const MCInstrDesc &MCID = getDesc(); 1153e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng if (MCID.isPredicable()) { 115419e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng for (unsigned i = 0, e = getNumOperands(); i != e; ++i) 1155e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng if (MCID.OpInfo[i].isPredicate()) 1156f277ee4be7edabb759a7f78138b693d72d0c263fEvan Cheng return i; 115719e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng } 115819e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng 1159f277ee4be7edabb759a7f78138b693d72d0c263fEvan Cheng return -1; 116019e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng} 1161ee61d67c2f1105e23b2ea5110389f3b7b713b504Jim Grosbach 11629c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen// MachineOperand::TiedTo is 4 bits wide. 11639c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesenconst unsigned TiedMax = 15; 11649c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen 11659c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen/// tieOperands - Mark operands at DefIdx and UseIdx as tied to each other. 11669c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen/// 11679c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen/// Use and def operands can be tied together, indicated by a non-zero TiedTo 11689c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen/// field. TiedTo can have these values: 11699c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen/// 11709c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen/// 0: Operand is not tied to anything. 11719c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen/// 1 to TiedMax-1: Tied to getOperand(TiedTo-1). 11729c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen/// TiedMax: Tied to an operand >= TiedMax-1. 11739c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen/// 11749c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen/// The tied def must be one of the first TiedMax operands on a normal 11759c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen/// instruction. INLINEASM instructions allow more tied defs. 11769c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen/// 117794083149fd6891c8a72472cf1814fa6600a75979Jakob Stoklund Olesenvoid MachineInstr::tieOperands(unsigned DefIdx, unsigned UseIdx) { 117894083149fd6891c8a72472cf1814fa6600a75979Jakob Stoklund Olesen MachineOperand &DefMO = getOperand(DefIdx); 117994083149fd6891c8a72472cf1814fa6600a75979Jakob Stoklund Olesen MachineOperand &UseMO = getOperand(UseIdx); 118094083149fd6891c8a72472cf1814fa6600a75979Jakob Stoklund Olesen assert(DefMO.isDef() && "DefIdx must be a def operand"); 118194083149fd6891c8a72472cf1814fa6600a75979Jakob Stoklund Olesen assert(UseMO.isUse() && "UseIdx must be a use operand"); 118294083149fd6891c8a72472cf1814fa6600a75979Jakob Stoklund Olesen assert(!DefMO.isTied() && "Def is already tied to another use"); 118394083149fd6891c8a72472cf1814fa6600a75979Jakob Stoklund Olesen assert(!UseMO.isTied() && "Use is already tied to another def"); 118494083149fd6891c8a72472cf1814fa6600a75979Jakob Stoklund Olesen 11859c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen if (DefIdx < TiedMax) 11869c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen UseMO.TiedTo = DefIdx + 1; 11879c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen else { 11889c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen // Inline asm can use the group descriptors to find tied operands, but on 11899c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen // normal instruction, the tied def must be within the first TiedMax 11909c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen // operands. 11919c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen assert(isInlineAsm() && "DefIdx out of range"); 11929c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen UseMO.TiedTo = TiedMax; 11939c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen } 11949c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen 11959c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen // UseIdx can be out of range, we'll search for it in findTiedOperandIdx(). 11969c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen DefMO.TiedTo = std::min(UseIdx + 1, TiedMax); 119794083149fd6891c8a72472cf1814fa6600a75979Jakob Stoklund Olesen} 119894083149fd6891c8a72472cf1814fa6600a75979Jakob Stoklund Olesen 1199699ac049517285d978ed607b2735976c5ae97ac0Jakob Stoklund Olesen/// Given the index of a tied register operand, find the operand it is tied to. 1200699ac049517285d978ed607b2735976c5ae97ac0Jakob Stoklund Olesen/// Defs are tied to uses and vice versa. Returns the index of the tied operand 1201699ac049517285d978ed607b2735976c5ae97ac0Jakob Stoklund Olesen/// which must exist. 1202699ac049517285d978ed607b2735976c5ae97ac0Jakob Stoklund Olesenunsigned MachineInstr::findTiedOperandIdx(unsigned OpIdx) const { 12039c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen const MachineOperand &MO = getOperand(OpIdx); 12049c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen assert(MO.isTied() && "Operand isn't tied"); 12059c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen 12069c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen // Normally TiedTo is in range. 12079c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen if (MO.TiedTo < TiedMax) 12089c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen return MO.TiedTo - 1; 12099c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen 12109c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen // Uses on normal instructions can be out of range. 12119c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen if (!isInlineAsm()) { 12129c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen // Normal tied defs must be in the 0..TiedMax-1 range. 12139c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen if (MO.isUse()) 12149c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen return TiedMax - 1; 12159c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen // MO is a def. Search for the tied use. 12169c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen for (unsigned i = TiedMax - 1, e = getNumOperands(); i != e; ++i) { 12179c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen const MachineOperand &UseMO = getOperand(i); 12189c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen if (UseMO.isReg() && UseMO.isUse() && UseMO.TiedTo == OpIdx + 1) 12199c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen return i; 1220699ac049517285d978ed607b2735976c5ae97ac0Jakob Stoklund Olesen } 12219c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen llvm_unreachable("Can't find tied use"); 1222699ac049517285d978ed607b2735976c5ae97ac0Jakob Stoklund Olesen } 1223699ac049517285d978ed607b2735976c5ae97ac0Jakob Stoklund Olesen 12249c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen // Now deal with inline asm by parsing the operand group descriptor flags. 12259c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen // Find the beginning of each operand group. 12269c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen SmallVector<unsigned, 8> GroupIdx; 12279c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen unsigned OpIdxGroup = ~0u; 12289c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen unsigned NumOps; 12299c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen for (unsigned i = InlineAsm::MIOp_FirstOperand, e = getNumOperands(); i < e; 12309c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen i += NumOps) { 12319c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen const MachineOperand &FlagMO = getOperand(i); 12329c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen assert(FlagMO.isImm() && "Invalid tied operand on inline asm"); 12339c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen unsigned CurGroup = GroupIdx.size(); 12349c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen GroupIdx.push_back(i); 12359c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen NumOps = 1 + InlineAsm::getNumOperandRegisters(FlagMO.getImm()); 12369c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen // OpIdx belongs to this operand group. 12379c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen if (OpIdx > i && OpIdx < i + NumOps) 12389c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen OpIdxGroup = CurGroup; 12399c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen unsigned TiedGroup; 12409c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen if (!InlineAsm::isUseOperandTiedToDef(FlagMO.getImm(), TiedGroup)) 12419c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen continue; 12429c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen // Operands in this group are tied to operands in TiedGroup which must be 12439c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen // earlier. Find the number of operands between the two groups. 12449c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen unsigned Delta = i - GroupIdx[TiedGroup]; 12459c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen 12469c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen // OpIdx is a use tied to TiedGroup. 12479c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen if (OpIdxGroup == CurGroup) 12489c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen return OpIdx - Delta; 12499c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen 12509c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen // OpIdx is a def tied to this use group. 12519c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen if (OpIdxGroup == TiedGroup) 12529c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen return OpIdx + Delta; 12539c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen } 12549c130672761e006c47ea23b34a7bd414f2cd8368Jakob Stoklund Olesen llvm_unreachable("Invalid tied operand on inline asm"); 1255699ac049517285d978ed607b2735976c5ae97ac0Jakob Stoklund Olesen} 1256699ac049517285d978ed607b2735976c5ae97ac0Jakob Stoklund Olesen 1257e6cd757e6800b9b94a6459ec148c0624c4f2e3c1Dan Gohman/// clearKillInfo - Clears kill flags on all operands. 1258e6cd757e6800b9b94a6459ec148c0624c4f2e3c1Dan Gohman/// 1259e6cd757e6800b9b94a6459ec148c0624c4f2e3c1Dan Gohmanvoid MachineInstr::clearKillInfo() { 1260e6cd757e6800b9b94a6459ec148c0624c4f2e3c1Dan Gohman for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 1261e6cd757e6800b9b94a6459ec148c0624c4f2e3c1Dan Gohman MachineOperand &MO = getOperand(i); 1262e6cd757e6800b9b94a6459ec148c0624c4f2e3c1Dan Gohman if (MO.isReg() && MO.isUse()) 1263e6cd757e6800b9b94a6459ec148c0624c4f2e3c1Dan Gohman MO.setIsKill(false); 1264e6cd757e6800b9b94a6459ec148c0624c4f2e3c1Dan Gohman } 1265e6cd757e6800b9b94a6459ec148c0624c4f2e3c1Dan Gohman} 1266e6cd757e6800b9b94a6459ec148c0624c4f2e3c1Dan Gohman 12679edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesenvoid MachineInstr::substituteRegister(unsigned FromReg, 12689edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen unsigned ToReg, 12699edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen unsigned SubIdx, 12709edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen const TargetRegisterInfo &RegInfo) { 12719edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen if (TargetRegisterInfo::isPhysicalRegister(ToReg)) { 12729edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen if (SubIdx) 12739edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen ToReg = RegInfo.getSubReg(ToReg, SubIdx); 12749edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 12759edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen MachineOperand &MO = getOperand(i); 12769edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen if (!MO.isReg() || MO.getReg() != FromReg) 12779edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen continue; 12789edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen MO.substPhysReg(ToReg, RegInfo); 12799edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen } 12809edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen } else { 12819edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 12829edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen MachineOperand &MO = getOperand(i); 12839edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen if (!MO.isReg() || MO.getReg() != FromReg) 12849edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen continue; 12859edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen MO.substVirtReg(ToReg, SubIdx, RegInfo); 12869edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen } 12879edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen } 12889edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen} 12899edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen 12909f1c8317a4676945b4961ddb9827ef2412551620Evan Cheng/// isSafeToMove - Return true if it is safe to move this instruction. If 12919f1c8317a4676945b4961ddb9827ef2412551620Evan Cheng/// SawStore is set to true, it means that there is a store (or call) between 12929f1c8317a4676945b4961ddb9827ef2412551620Evan Cheng/// the instruction's location and its intended destination. 1293b3b930a011554fc7566dd4311af3862b01e5fd8fDan Gohmanbool MachineInstr::isSafeToMove(const TargetInstrInfo *TII, 1294ac1abde05b7e6956c01deb6557539bee8fea30f4Evan Cheng AliasAnalysis *AA, 1295ac1abde05b7e6956c01deb6557539bee8fea30f4Evan Cheng bool &SawStore) const { 1296b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng // Ignore stuff that we obviously can't move. 12970d7585839540abb9ab661a741dc3e0c2c860bcebJakob Stoklund Olesen // 12980d7585839540abb9ab661a741dc3e0c2c860bcebJakob Stoklund Olesen // Treat volatile loads as stores. This is not strictly necessary for 12994f1a56ce3c08763c89e9cf50e9503a87247ac4e9Jakob Stoklund Olesen // volatiles, but it is required for atomic loads. It is not allowed to move 13000d7585839540abb9ab661a741dc3e0c2c860bcebJakob Stoklund Olesen // a load across an atomic load with Ordering > Monotonic. 13010d7585839540abb9ab661a741dc3e0c2c860bcebJakob Stoklund Olesen if (mayStore() || isCall() || 1302f036f7a1e79910bf5b5b6f37d2e512b4f01155a0Jakob Stoklund Olesen (mayLoad() && hasOrderedMemoryRef())) { 1303b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng SawStore = true; 1304b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng return false; 1305b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng } 130630a343aeedf777f9b8b6be9823da750afbf765b1Evan Cheng 130736b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines if (isPosition() || isDebugValue() || isTerminator() || 130836b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines hasUnmodeledSideEffects()) 1309b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng return false; 1310b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng 1311b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng // See if this instruction does a load. If so, we have to guarantee that the 1312b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng // loaded value doesn't change between the load and the its intended 1313b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng // destination. The check for isInvariantLoad gives the targe the chance to 1314b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng // classify the load as always returning a constant, e.g. a constant pool 1315b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng // load. 13165a96b3dad2f634c9081c8b2b6c2575441dc5a2bdEvan Cheng if (mayLoad() && !isInvariantLoad(AA)) 1317b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng // Otherwise, this is a real load. If there is a store between the load and 13180d7585839540abb9ab661a741dc3e0c2c860bcebJakob Stoklund Olesen // end of block, we can't move it. 13190d7585839540abb9ab661a741dc3e0c2c860bcebJakob Stoklund Olesen return !SawStore; 13203e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman 1321b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng return true; 1322b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng} 1323b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng 1324f036f7a1e79910bf5b5b6f37d2e512b4f01155a0Jakob Stoklund Olesen/// hasOrderedMemoryRef - Return true if this instruction may have an ordered 1325f036f7a1e79910bf5b5b6f37d2e512b4f01155a0Jakob Stoklund Olesen/// or volatile memory reference, or if the information describing the memory 1326f036f7a1e79910bf5b5b6f37d2e512b4f01155a0Jakob Stoklund Olesen/// reference is not available. Return false if it is known to have no ordered 1327f036f7a1e79910bf5b5b6f37d2e512b4f01155a0Jakob Stoklund Olesen/// memory references. 1328f036f7a1e79910bf5b5b6f37d2e512b4f01155a0Jakob Stoklund Olesenbool MachineInstr::hasOrderedMemoryRef() const { 13293e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman // An instruction known never to access memory won't have a volatile access. 13305a96b3dad2f634c9081c8b2b6c2575441dc5a2bdEvan Cheng if (!mayStore() && 13315a96b3dad2f634c9081c8b2b6c2575441dc5a2bdEvan Cheng !mayLoad() && 13325a96b3dad2f634c9081c8b2b6c2575441dc5a2bdEvan Cheng !isCall() && 1333c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng !hasUnmodeledSideEffects()) 13343e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman return false; 13353e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman 13363e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman // Otherwise, if the instruction has no memory reference information, 13373e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman // conservatively assume it wasn't preserved. 13383e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman if (memoperands_empty()) 13393e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman return true; 1340ee61d67c2f1105e23b2ea5110389f3b7b713b504Jim Grosbach 1341f036f7a1e79910bf5b5b6f37d2e512b4f01155a0Jakob Stoklund Olesen // Check the memory reference information for ordered references. 1342c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman for (mmo_iterator I = memoperands_begin(), E = memoperands_end(); I != E; ++I) 1343f036f7a1e79910bf5b5b6f37d2e512b4f01155a0Jakob Stoklund Olesen if (!(*I)->isUnordered()) 13443e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman return true; 13453e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman 13463e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman return false; 13473e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman} 13483e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman 1349e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman/// isInvariantLoad - Return true if this instruction is loading from a 1350e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman/// location whose value is invariant across the function. For example, 1351f451cb870efcf9e0302d25ed05f4cac6bb494e42Dan Gohman/// loading a value from the constant pool or from the argument area 1352e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman/// of a function if it does not change. This should only return true of 1353e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman/// *all* loads the instruction does are invariant (if it does multiple loads). 1354e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohmanbool MachineInstr::isInvariantLoad(AliasAnalysis *AA) const { 1355e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman // If the instruction doesn't load at all, it isn't an invariant load. 13565a96b3dad2f634c9081c8b2b6c2575441dc5a2bdEvan Cheng if (!mayLoad()) 1357e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman return false; 1358e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman 1359e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman // If the instruction has lost its memoperands, conservatively assume that 1360e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman // it may not be an invariant load. 1361e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman if (memoperands_empty()) 1362e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman return false; 1363e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman 1364e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman const MachineFrameInfo *MFI = getParent()->getParent()->getFrameInfo(); 1365e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman 1366e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman for (mmo_iterator I = memoperands_begin(), 1367e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman E = memoperands_end(); I != E; ++I) { 1368e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman if ((*I)->isVolatile()) return false; 1369e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman if ((*I)->isStore()) return false; 1370d752e0f7e64585839cb3a458ef52456eaebbea3cPete Cooper if ((*I)->isInvariant()) return true; 1371e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman 1372dce4a407a24b04eebc6a376f8e62b41aaa7b071fStephen Hines 1373dce4a407a24b04eebc6a376f8e62b41aaa7b071fStephen Hines // A load from a constant PseudoSourceValue is invariant. 1374dce4a407a24b04eebc6a376f8e62b41aaa7b071fStephen Hines if (const PseudoSourceValue *PSV = (*I)->getPseudoValue()) 1375dce4a407a24b04eebc6a376f8e62b41aaa7b071fStephen Hines if (PSV->isConstant(MFI)) 1376dce4a407a24b04eebc6a376f8e62b41aaa7b071fStephen Hines continue; 1377dce4a407a24b04eebc6a376f8e62b41aaa7b071fStephen Hines 1378e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman if (const Value *V = (*I)->getValue()) { 1379e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman // If we have an AliasAnalysis, ask it whether the memory is constant. 1380f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman if (AA && AA->pointsToConstantMemory( 1381f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman AliasAnalysis::Location(V, (*I)->getSize(), 1382f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman (*I)->getTBAAInfo()))) 1383e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman continue; 1384e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman } 1385e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman 1386e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman // Otherwise assume conservatively. 1387e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman return false; 1388e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman } 1389e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman 1390e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman // Everything checks out. 1391e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman return true; 1392e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman} 1393e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman 1394229694f0ee630ceabe96a8bd48952f6740f928b2Evan Cheng/// isConstantValuePHI - If the specified instruction is a PHI that always 1395229694f0ee630ceabe96a8bd48952f6740f928b2Evan Cheng/// merges together the same virtual register, return the register, otherwise 1396229694f0ee630ceabe96a8bd48952f6740f928b2Evan Cheng/// return 0. 1397229694f0ee630ceabe96a8bd48952f6740f928b2Evan Chengunsigned MachineInstr::isConstantValuePHI() const { 1398518bb53485df640d7b7e3f6b0544099020c42aa7Chris Lattner if (!isPHI()) 1399229694f0ee630ceabe96a8bd48952f6740f928b2Evan Cheng return 0; 1400d8f079c25e8bcaf4d10bfa9c3f6a38cd5ac84329Evan Cheng assert(getNumOperands() >= 3 && 1401d8f079c25e8bcaf4d10bfa9c3f6a38cd5ac84329Evan Cheng "It's illegal to have a PHI without source operands"); 1402229694f0ee630ceabe96a8bd48952f6740f928b2Evan Cheng 1403229694f0ee630ceabe96a8bd48952f6740f928b2Evan Cheng unsigned Reg = getOperand(1).getReg(); 1404229694f0ee630ceabe96a8bd48952f6740f928b2Evan Cheng for (unsigned i = 3, e = getNumOperands(); i < e; i += 2) 1405229694f0ee630ceabe96a8bd48952f6740f928b2Evan Cheng if (getOperand(i).getReg() != Reg) 1406229694f0ee630ceabe96a8bd48952f6740f928b2Evan Cheng return 0; 1407229694f0ee630ceabe96a8bd48952f6740f928b2Evan Cheng return Reg; 1408229694f0ee630ceabe96a8bd48952f6740f928b2Evan Cheng} 1409229694f0ee630ceabe96a8bd48952f6740f928b2Evan Cheng 1410c36b7069b42bece963b7e6adf020353ce990ef76Evan Chengbool MachineInstr::hasUnmodeledSideEffects() const { 14115a96b3dad2f634c9081c8b2b6c2575441dc5a2bdEvan Cheng if (hasProperty(MCID::UnmodeledSideEffects)) 1412c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng return true; 1413c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng if (isInlineAsm()) { 1414c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng unsigned ExtraInfo = getOperand(InlineAsm::MIOp_ExtraInfo).getImm(); 1415c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng if (ExtraInfo & InlineAsm::Extra_HasSideEffects) 1416c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng return true; 1417c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng } 1418c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng 1419c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng return false; 1420c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng} 1421c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng 1422a57fabe815ccf016eead526eb3ef475f116ab155Evan Cheng/// allDefsAreDead - Return true if all the defs of this instruction are dead. 1423a57fabe815ccf016eead526eb3ef475f116ab155Evan Cheng/// 1424a57fabe815ccf016eead526eb3ef475f116ab155Evan Chengbool MachineInstr::allDefsAreDead() const { 1425a57fabe815ccf016eead526eb3ef475f116ab155Evan Cheng for (unsigned i = 0, e = getNumOperands(); i < e; ++i) { 1426a57fabe815ccf016eead526eb3ef475f116ab155Evan Cheng const MachineOperand &MO = getOperand(i); 1427a57fabe815ccf016eead526eb3ef475f116ab155Evan Cheng if (!MO.isReg() || MO.isUse()) 1428a57fabe815ccf016eead526eb3ef475f116ab155Evan Cheng continue; 1429a57fabe815ccf016eead526eb3ef475f116ab155Evan Cheng if (!MO.isDead()) 1430a57fabe815ccf016eead526eb3ef475f116ab155Evan Cheng return false; 1431a57fabe815ccf016eead526eb3ef475f116ab155Evan Cheng } 1432a57fabe815ccf016eead526eb3ef475f116ab155Evan Cheng return true; 1433a57fabe815ccf016eead526eb3ef475f116ab155Evan Cheng} 1434a57fabe815ccf016eead526eb3ef475f116ab155Evan Cheng 1435c8f46c45a0bdefdb91593cabc87547cc45f9d89dEvan Cheng/// copyImplicitOps - Copy implicit register operands from specified 1436c8f46c45a0bdefdb91593cabc87547cc45f9d89dEvan Cheng/// instruction to this instruction. 1437be06aacaa9a270384599bbfa850b967e9996b9fbJakob Stoklund Olesenvoid MachineInstr::copyImplicitOps(MachineFunction &MF, 1438be06aacaa9a270384599bbfa850b967e9996b9fbJakob Stoklund Olesen const MachineInstr *MI) { 1439c8f46c45a0bdefdb91593cabc87547cc45f9d89dEvan Cheng for (unsigned i = MI->getDesc().getNumOperands(), e = MI->getNumOperands(); 1440c8f46c45a0bdefdb91593cabc87547cc45f9d89dEvan Cheng i != e; ++i) { 1441c8f46c45a0bdefdb91593cabc87547cc45f9d89dEvan Cheng const MachineOperand &MO = MI->getOperand(i); 144236b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines if ((MO.isReg() && MO.isImplicit()) || MO.isRegMask()) 1443be06aacaa9a270384599bbfa850b967e9996b9fbJakob Stoklund Olesen addOperand(MF, MO); 1444c8f46c45a0bdefdb91593cabc87547cc45f9d89dEvan Cheng } 1445c8f46c45a0bdefdb91593cabc87547cc45f9d89dEvan Cheng} 1446c8f46c45a0bdefdb91593cabc87547cc45f9d89dEvan Cheng 144721326fc2ad47ee7e73a8c0b03a4a0cc0b0a0c4e8Brian Gaekevoid MachineInstr::dump() const { 1448b720be6a50f4e1b3280d2b029ee38dda14577525Manman Ren#if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP) 14493b325334102144ec39910563eabebde434504564David Greene dbgs() << " " << *this; 145077e300e8f0b8db8eec448cae9c87d7c5bfad9757Manman Ren#endif 14515ca6bd14a00ba5310ce1a632d3a0cc8f8af31433Mon P Wang} 14525ca6bd14a00ba5310ce1a632d3a0cc8f8af31433Mon P Wang 1453ee61d67c2f1105e23b2ea5110389f3b7b713b504Jim Grosbachstatic void printDebugLoc(DebugLoc DL, const MachineFunction *MF, 1454da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel raw_ostream &CommentOS) { 1455da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel const LLVMContext &Ctx = MF->getFunction()->getContext(); 1456dce4a407a24b04eebc6a376f8e62b41aaa7b071fStephen Hines DL.print(Ctx, CommentOS); 1457da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel} 1458da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel 1459c6ada8e5f38168f13830e448f2b9e2d8e3eac72bAndrew Trickvoid MachineInstr::print(raw_ostream &OS, const TargetMachine *TM, 1460c6ada8e5f38168f13830e448f2b9e2d8e3eac72bAndrew Trick bool SkipOpers) const { 146180f6c5898113806130975fd56d24929b06bf54f8Dan Gohman // We can be a bit tidier if we know the TargetMachine and/or MachineFunction. 1462dce4a407a24b04eebc6a376f8e62b41aaa7b071fStephen Hines const MachineFunction *MF = nullptr; 1463dce4a407a24b04eebc6a376f8e62b41aaa7b071fStephen Hines const MachineRegisterInfo *MRI = nullptr; 146480f6c5898113806130975fd56d24929b06bf54f8Dan Gohman if (const MachineBasicBlock *MBB = getParent()) { 146580f6c5898113806130975fd56d24929b06bf54f8Dan Gohman MF = MBB->getParent(); 146680f6c5898113806130975fd56d24929b06bf54f8Dan Gohman if (!TM && MF) 146780f6c5898113806130975fd56d24929b06bf54f8Dan Gohman TM = &MF->getTarget(); 1468a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen if (MF) 1469a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen MRI = &MF->getRegInfo(); 147080f6c5898113806130975fd56d24929b06bf54f8Dan Gohman } 14710ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman 1472a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen // Save a list of virtual registers. 1473a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen SmallVector<unsigned, 8> VirtRegs; 1474a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen 14750ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman // Print explicitly defined operands on the left of an assignment syntax. 147680f6c5898113806130975fd56d24929b06bf54f8Dan Gohman unsigned StartOp = 0, e = getNumOperands(); 14770ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman for (; StartOp < e && getOperand(StartOp).isReg() && 14780ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman getOperand(StartOp).isDef() && 14790ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman !getOperand(StartOp).isImplicit(); 14800ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman ++StartOp) { 14810ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman if (StartOp != 0) OS << ", "; 14820ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman getOperand(StartOp).print(OS, TM); 1483a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen unsigned Reg = getOperand(StartOp).getReg(); 1484c9df025e33ac435adb3b3318d237c36ca7cec659Jakob Stoklund Olesen if (TargetRegisterInfo::isVirtualRegister(Reg)) 1485a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen VirtRegs.push_back(Reg); 14866a592271fb2946a0704b06fd66199987cdd40b3cChris Lattner } 1487b140762a45d21aaed054f15adaff0fc2274d939dTanya Lattner 14880ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman if (StartOp != 0) 14890ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman OS << " = "; 14900ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman 14910ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman // Print the opcode name. 1492c667ba69ac342563c0886e20509e68705d78a0a5Benjamin Kramer if (TM && TM->getInstrInfo()) 1493c667ba69ac342563c0886e20509e68705d78a0a5Benjamin Kramer OS << TM->getInstrInfo()->getName(getOpcode()); 1494c667ba69ac342563c0886e20509e68705d78a0a5Benjamin Kramer else 1495c667ba69ac342563c0886e20509e68705d78a0a5Benjamin Kramer OS << "UNKNOWN"; 1496edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 1497c6ada8e5f38168f13830e448f2b9e2d8e3eac72bAndrew Trick if (SkipOpers) 1498c6ada8e5f38168f13830e448f2b9e2d8e3eac72bAndrew Trick return; 1499c6ada8e5f38168f13830e448f2b9e2d8e3eac72bAndrew Trick 15000ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman // Print the rest of the operands. 150180f6c5898113806130975fd56d24929b06bf54f8Dan Gohman bool OmittedAnyCallClobbers = false; 150280f6c5898113806130975fd56d24929b06bf54f8Dan Gohman bool FirstOp = true; 15037a2ecd3f99ae4dede7e8c1984c2a08984be69363Jakob Stoklund Olesen unsigned AsmDescOp = ~0u; 15047a2ecd3f99ae4dede7e8c1984c2a08984be69363Jakob Stoklund Olesen unsigned AsmOpCount = 0; 1505c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng 15063627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen if (isInlineAsm() && e >= InlineAsm::MIOp_FirstOperand) { 1507c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng // Print asm string. 1508c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng OS << " "; 1509c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng getOperand(InlineAsm::MIOp_AsmString).print(OS, TM); 1510c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng 1511fffe3634933471ee9805412ffa221080c9e9e8fdEric Christopher // Print HasSideEffects, MayLoad, MayStore, IsAlignStack 1512c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng unsigned ExtraInfo = getOperand(InlineAsm::MIOp_ExtraInfo).getImm(); 1513c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng if (ExtraInfo & InlineAsm::Extra_HasSideEffects) 1514c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng OS << " [sideeffect]"; 1515fffe3634933471ee9805412ffa221080c9e9e8fdEric Christopher if (ExtraInfo & InlineAsm::Extra_MayLoad) 1516fffe3634933471ee9805412ffa221080c9e9e8fdEric Christopher OS << " [mayload]"; 1517fffe3634933471ee9805412ffa221080c9e9e8fdEric Christopher if (ExtraInfo & InlineAsm::Extra_MayStore) 1518fffe3634933471ee9805412ffa221080c9e9e8fdEric Christopher OS << " [maystore]"; 1519c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng if (ExtraInfo & InlineAsm::Extra_IsAlignStack) 1520c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng OS << " [alignstack]"; 152177fffa6fdd389ad6d70a42b36c1c36c768c2de41Chad Rosier if (getInlineAsmDialect() == InlineAsm::AD_ATT) 1522576cd11ab8035d4240f7e6ea8d7c6c2e45154f86Chad Rosier OS << " [attdialect]"; 152377fffa6fdd389ad6d70a42b36c1c36c768c2de41Chad Rosier if (getInlineAsmDialect() == InlineAsm::AD_Intel) 1524576cd11ab8035d4240f7e6ea8d7c6c2e45154f86Chad Rosier OS << " [inteldialect]"; 1525c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng 15267a2ecd3f99ae4dede7e8c1984c2a08984be69363Jakob Stoklund Olesen StartOp = AsmDescOp = InlineAsm::MIOp_FirstOperand; 1527c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng FirstOp = false; 1528c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng } 1529c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng 1530c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng 15316a592271fb2946a0704b06fd66199987cdd40b3cChris Lattner for (unsigned i = StartOp, e = getNumOperands(); i != e; ++i) { 153280f6c5898113806130975fd56d24929b06bf54f8Dan Gohman const MachineOperand &MO = getOperand(i); 153380f6c5898113806130975fd56d24929b06bf54f8Dan Gohman 1534c9df025e33ac435adb3b3318d237c36ca7cec659Jakob Stoklund Olesen if (MO.isReg() && TargetRegisterInfo::isVirtualRegister(MO.getReg())) 1535a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen VirtRegs.push_back(MO.getReg()); 1536a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen 153780f6c5898113806130975fd56d24929b06bf54f8Dan Gohman // Omit call-clobbered registers which aren't used anywhere. This makes 153880f6c5898113806130975fd56d24929b06bf54f8Dan Gohman // call instructions much less noisy on targets where calls clobber lots 153980f6c5898113806130975fd56d24929b06bf54f8Dan Gohman // of registers. Don't rely on MO.isDead() because we may be called before 154080f6c5898113806130975fd56d24929b06bf54f8Dan Gohman // LiveVariables is run, or we may be looking at a non-allocatable reg. 15415a96b3dad2f634c9081c8b2b6c2575441dc5a2bdEvan Cheng if (MF && isCall() && 154280f6c5898113806130975fd56d24929b06bf54f8Dan Gohman MO.isReg() && MO.isImplicit() && MO.isDef()) { 154380f6c5898113806130975fd56d24929b06bf54f8Dan Gohman unsigned Reg = MO.getReg(); 1544c9df025e33ac435adb3b3318d237c36ca7cec659Jakob Stoklund Olesen if (TargetRegisterInfo::isPhysicalRegister(Reg)) { 154580f6c5898113806130975fd56d24929b06bf54f8Dan Gohman const MachineRegisterInfo &MRI = MF->getRegInfo(); 1546e6dc59891fc53d65b3f6d19772d26e23e0cc1cacJakob Stoklund Olesen if (MRI.use_empty(Reg)) { 154780f6c5898113806130975fd56d24929b06bf54f8Dan Gohman bool HasAliasLive = false; 1548396618b43a85e12d290a90b181c6af5d7c0c5f11Jakob Stoklund Olesen for (MCRegAliasIterator AI(Reg, TM->getRegisterInfo(), true); 1549396618b43a85e12d290a90b181c6af5d7c0c5f11Jakob Stoklund Olesen AI.isValid(); ++AI) { 1550396618b43a85e12d290a90b181c6af5d7c0c5f11Jakob Stoklund Olesen unsigned AliasReg = *AI; 1551e6dc59891fc53d65b3f6d19772d26e23e0cc1cacJakob Stoklund Olesen if (!MRI.use_empty(AliasReg)) { 155280f6c5898113806130975fd56d24929b06bf54f8Dan Gohman HasAliasLive = true; 155380f6c5898113806130975fd56d24929b06bf54f8Dan Gohman break; 155480f6c5898113806130975fd56d24929b06bf54f8Dan Gohman } 1555396618b43a85e12d290a90b181c6af5d7c0c5f11Jakob Stoklund Olesen } 155680f6c5898113806130975fd56d24929b06bf54f8Dan Gohman if (!HasAliasLive) { 155780f6c5898113806130975fd56d24929b06bf54f8Dan Gohman OmittedAnyCallClobbers = true; 155880f6c5898113806130975fd56d24929b06bf54f8Dan Gohman continue; 155980f6c5898113806130975fd56d24929b06bf54f8Dan Gohman } 156080f6c5898113806130975fd56d24929b06bf54f8Dan Gohman } 156180f6c5898113806130975fd56d24929b06bf54f8Dan Gohman } 156280f6c5898113806130975fd56d24929b06bf54f8Dan Gohman } 156380f6c5898113806130975fd56d24929b06bf54f8Dan Gohman 156480f6c5898113806130975fd56d24929b06bf54f8Dan Gohman if (FirstOp) FirstOp = false; else OS << ","; 15656a592271fb2946a0704b06fd66199987cdd40b3cChris Lattner OS << " "; 1566b1bb4afbc7d801f9875be135c428b6f05511db5dJakob Stoklund Olesen if (i < getDesc().NumOperands) { 1567e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng const MCOperandInfo &MCOI = getDesc().OpInfo[i]; 1568e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng if (MCOI.isPredicate()) 1569b1bb4afbc7d801f9875be135c428b6f05511db5dJakob Stoklund Olesen OS << "pred:"; 1570e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng if (MCOI.isOptionalDef()) 1571b1bb4afbc7d801f9875be135c428b6f05511db5dJakob Stoklund Olesen OS << "opt:"; 1572b1bb4afbc7d801f9875be135c428b6f05511db5dJakob Stoklund Olesen } 157359b3655564bb6717b296ca9e71f13bf7db45b590Evan Cheng if (isDebugValue() && MO.isMetadata()) { 157459b3655564bb6717b296ca9e71f13bf7db45b590Evan Cheng // Pretty print DBG_VALUE instructions. 157559b3655564bb6717b296ca9e71f13bf7db45b590Evan Cheng const MDNode *MD = MO.getMetadata(); 157659b3655564bb6717b296ca9e71f13bf7db45b590Evan Cheng if (const MDString *MDS = dyn_cast<MDString>(MD->getOperand(2))) 157759b3655564bb6717b296ca9e71f13bf7db45b590Evan Cheng OS << "!\"" << MDS->getString() << '\"'; 157859b3655564bb6717b296ca9e71f13bf7db45b590Evan Cheng else 157959b3655564bb6717b296ca9e71f13bf7db45b590Evan Cheng MO.print(OS, TM); 1580b1e11455d1cf4df081a9593660d194c1a53b4334Jakob Stoklund Olesen } else if (TM && (isInsertSubreg() || isRegSequence()) && MO.isImm()) { 1581b1e11455d1cf4df081a9593660d194c1a53b4334Jakob Stoklund Olesen OS << TM->getRegisterInfo()->getSubRegIndexName(MO.getImm()); 15827a2ecd3f99ae4dede7e8c1984c2a08984be69363Jakob Stoklund Olesen } else if (i == AsmDescOp && MO.isImm()) { 15837a2ecd3f99ae4dede7e8c1984c2a08984be69363Jakob Stoklund Olesen // Pretty print the inline asm operand descriptor. 15847a2ecd3f99ae4dede7e8c1984c2a08984be69363Jakob Stoklund Olesen OS << '$' << AsmOpCount++; 15857a2ecd3f99ae4dede7e8c1984c2a08984be69363Jakob Stoklund Olesen unsigned Flag = MO.getImm(); 15867a2ecd3f99ae4dede7e8c1984c2a08984be69363Jakob Stoklund Olesen switch (InlineAsm::getKind(Flag)) { 1587459b74b9644c4741d93fe73adc2b06ca6bdb366dJakob Stoklund Olesen case InlineAsm::Kind_RegUse: OS << ":[reguse"; break; 1588459b74b9644c4741d93fe73adc2b06ca6bdb366dJakob Stoklund Olesen case InlineAsm::Kind_RegDef: OS << ":[regdef"; break; 1589459b74b9644c4741d93fe73adc2b06ca6bdb366dJakob Stoklund Olesen case InlineAsm::Kind_RegDefEarlyClobber: OS << ":[regdef-ec"; break; 1590459b74b9644c4741d93fe73adc2b06ca6bdb366dJakob Stoklund Olesen case InlineAsm::Kind_Clobber: OS << ":[clobber"; break; 1591459b74b9644c4741d93fe73adc2b06ca6bdb366dJakob Stoklund Olesen case InlineAsm::Kind_Imm: OS << ":[imm"; break; 1592459b74b9644c4741d93fe73adc2b06ca6bdb366dJakob Stoklund Olesen case InlineAsm::Kind_Mem: OS << ":[mem"; break; 1593459b74b9644c4741d93fe73adc2b06ca6bdb366dJakob Stoklund Olesen default: OS << ":[??" << InlineAsm::getKind(Flag); break; 15947a2ecd3f99ae4dede7e8c1984c2a08984be69363Jakob Stoklund Olesen } 15957a2ecd3f99ae4dede7e8c1984c2a08984be69363Jakob Stoklund Olesen 1596459b74b9644c4741d93fe73adc2b06ca6bdb366dJakob Stoklund Olesen unsigned RCID = 0; 15973821b1885e13dcdda6aa2853f1317d3288256685Nick Lewycky if (InlineAsm::hasRegClassConstraint(Flag, RCID)) { 1598459b74b9644c4741d93fe73adc2b06ca6bdb366dJakob Stoklund Olesen if (TM) 1599459b74b9644c4741d93fe73adc2b06ca6bdb366dJakob Stoklund Olesen OS << ':' << TM->getRegisterInfo()->getRegClass(RCID)->getName(); 1600459b74b9644c4741d93fe73adc2b06ca6bdb366dJakob Stoklund Olesen else 1601459b74b9644c4741d93fe73adc2b06ca6bdb366dJakob Stoklund Olesen OS << ":RC" << RCID; 16023821b1885e13dcdda6aa2853f1317d3288256685Nick Lewycky } 1603459b74b9644c4741d93fe73adc2b06ca6bdb366dJakob Stoklund Olesen 16047a2ecd3f99ae4dede7e8c1984c2a08984be69363Jakob Stoklund Olesen unsigned TiedTo = 0; 16057a2ecd3f99ae4dede7e8c1984c2a08984be69363Jakob Stoklund Olesen if (InlineAsm::isUseOperandTiedToDef(Flag, TiedTo)) 1606459b74b9644c4741d93fe73adc2b06ca6bdb366dJakob Stoklund Olesen OS << " tiedto:$" << TiedTo; 1607459b74b9644c4741d93fe73adc2b06ca6bdb366dJakob Stoklund Olesen 1608459b74b9644c4741d93fe73adc2b06ca6bdb366dJakob Stoklund Olesen OS << ']'; 16097a2ecd3f99ae4dede7e8c1984c2a08984be69363Jakob Stoklund Olesen 16107a2ecd3f99ae4dede7e8c1984c2a08984be69363Jakob Stoklund Olesen // Compute the index of the next operand descriptor. 16117a2ecd3f99ae4dede7e8c1984c2a08984be69363Jakob Stoklund Olesen AsmDescOp += 1 + InlineAsm::getNumOperandRegisters(Flag); 161259b3655564bb6717b296ca9e71f13bf7db45b590Evan Cheng } else 161359b3655564bb6717b296ca9e71f13bf7db45b590Evan Cheng MO.print(OS, TM); 161480f6c5898113806130975fd56d24929b06bf54f8Dan Gohman } 161580f6c5898113806130975fd56d24929b06bf54f8Dan Gohman 161680f6c5898113806130975fd56d24929b06bf54f8Dan Gohman // Briefly indicate whether any call clobbers were omitted. 161780f6c5898113806130975fd56d24929b06bf54f8Dan Gohman if (OmittedAnyCallClobbers) { 1618164558e59c2a321bf670e31a7bdde0d38d79bb67Bill Wendling if (!FirstOp) OS << ","; 161980f6c5898113806130975fd56d24929b06bf54f8Dan Gohman OS << " ..."; 16201049164aa6b06d91d9b3b557a9a213eaf3f6319aChris Lattner } 1621edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 16220ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman bool HaveSemi = false; 1623ebed123c5c2d10bb2aceb272f25644f685ebcd09Jakob Stoklund Olesen const unsigned PrintableFlags = FrameSetup; 1624ebed123c5c2d10bb2aceb272f25644f685ebcd09Jakob Stoklund Olesen if (Flags & PrintableFlags) { 16256dd97471c43805b3febf598d50498a09a02e93f4Anton Korobeynikov if (!HaveSemi) OS << ";"; HaveSemi = true; 16266dd97471c43805b3febf598d50498a09a02e93f4Anton Korobeynikov OS << " flags: "; 16276dd97471c43805b3febf598d50498a09a02e93f4Anton Korobeynikov 16286dd97471c43805b3febf598d50498a09a02e93f4Anton Korobeynikov if (Flags & FrameSetup) 16296dd97471c43805b3febf598d50498a09a02e93f4Anton Korobeynikov OS << "FrameSetup"; 16306dd97471c43805b3febf598d50498a09a02e93f4Anton Korobeynikov } 16316dd97471c43805b3febf598d50498a09a02e93f4Anton Korobeynikov 16328e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman if (!memoperands_empty()) { 16330ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman if (!HaveSemi) OS << ";"; HaveSemi = true; 16340ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman 16350ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman OS << " mem:"; 1636c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman for (mmo_iterator i = memoperands_begin(), e = memoperands_end(); 1637c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman i != e; ++i) { 1638c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman OS << **i; 163936b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines if (std::next(i) != e) 1640cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman OS << " "; 164169de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman } 164269de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman } 164369de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman 1644a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen // Print the regclass of any virtual registers encountered. 1645a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen if (MRI && !VirtRegs.empty()) { 1646a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen if (!HaveSemi) OS << ";"; HaveSemi = true; 1647a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen for (unsigned i = 0; i != VirtRegs.size(); ++i) { 1648a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen const TargetRegisterClass *RC = MRI->getRegClass(VirtRegs[i]); 16494314268128be6d54c9a7f0709680e5a5b40f3ab3Jakob Stoklund Olesen OS << " " << RC->getName() << ':' << PrintReg(VirtRegs[i]); 1650a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen for (unsigned j = i+1; j != VirtRegs.size();) { 1651a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen if (MRI->getRegClass(VirtRegs[j]) != RC) { 1652a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen ++j; 1653a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen continue; 1654a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen } 1655a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen if (VirtRegs[i] != VirtRegs[j]) 16564314268128be6d54c9a7f0709680e5a5b40f3ab3Jakob Stoklund Olesen OS << "," << PrintReg(VirtRegs[j]); 1657a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen VirtRegs.erase(VirtRegs.begin()+j); 1658a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen } 1659a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen } 1660a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen } 1661a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen 16626dd97471c43805b3febf598d50498a09a02e93f4Anton Korobeynikov // Print debug location information. 16634d3586dd230a3b16018da138404dbb87faf2008dDevang Patel if (isDebugValue() && getOperand(e - 1).isMetadata()) { 166436b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines if (!HaveSemi) OS << ";"; 16654d3586dd230a3b16018da138404dbb87faf2008dDevang Patel DIVariable DV(getOperand(e - 1).getMetadata()); 16664d3586dd230a3b16018da138404dbb87faf2008dDevang Patel OS << " line no:" << DV.getLineNumber(); 16674d3586dd230a3b16018da138404dbb87faf2008dDevang Patel if (MDNode *InlinedAt = DV.getInlinedAt()) { 16684d3586dd230a3b16018da138404dbb87faf2008dDevang Patel DebugLoc InlinedAtDL = DebugLoc::getFromDILocation(InlinedAt); 1669dce4a407a24b04eebc6a376f8e62b41aaa7b071fStephen Hines if (!InlinedAtDL.isUnknown() && MF) { 16704d3586dd230a3b16018da138404dbb87faf2008dDevang Patel OS << " inlined @[ "; 16714d3586dd230a3b16018da138404dbb87faf2008dDevang Patel printDebugLoc(InlinedAtDL, MF, OS); 16724d3586dd230a3b16018da138404dbb87faf2008dDevang Patel OS << " ]"; 16734d3586dd230a3b16018da138404dbb87faf2008dDevang Patel } 16744d3586dd230a3b16018da138404dbb87faf2008dDevang Patel } 16754d3586dd230a3b16018da138404dbb87faf2008dDevang Patel } else if (!debugLoc.isUnknown() && MF) { 167636b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines if (!HaveSemi) OS << ";"; 167775ae593a2750f9f7995980c3a03c0d972985e394Dan Gohman OS << " dbg:"; 1678da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel printDebugLoc(debugLoc, MF, OS); 1679b5ef27375731ece13a8ae0102b3f3233351036afBill Wendling } 1680b5ef27375731ece13a8ae0102b3f3233351036afBill Wendling 16816dd97471c43805b3febf598d50498a09a02e93f4Anton Korobeynikov OS << '\n'; 16821049164aa6b06d91d9b3b557a9a213eaf3f6319aChris Lattner} 16831049164aa6b06d91d9b3b557a9a213eaf3f6319aChris Lattner 1684b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Andersonbool MachineInstr::addRegisterKilled(unsigned IncomingReg, 16856f0d024a534af18d9e60b3ea757376cd8a3a980eDan Gohman const TargetRegisterInfo *RegInfo, 1686b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson bool AddIfNotFound) { 16879b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng bool isPhysReg = TargetRegisterInfo::isPhysicalRegister(IncomingReg); 1688396618b43a85e12d290a90b181c6af5d7c0c5f11Jakob Stoklund Olesen bool hasAliases = isPhysReg && 1689396618b43a85e12d290a90b181c6af5d7c0c5f11Jakob Stoklund Olesen MCRegAliasIterator(IncomingReg, RegInfo, false).isValid(); 16903f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman bool Found = false; 16919b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng SmallVector<unsigned,4> DeadOps; 16924a23d72ec21d1bdfda69fd16c9fc10cec39f1fedBill Wendling for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 16934a23d72ec21d1bdfda69fd16c9fc10cec39f1fedBill Wendling MachineOperand &MO = getOperand(i); 1694efb8e3e113cbf359d6a838c3b37fedc8305d19bbJakob Stoklund Olesen if (!MO.isReg() || !MO.isUse() || MO.isUndef()) 16959b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng continue; 16969b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng unsigned Reg = MO.getReg(); 16979b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng if (!Reg) 16989b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng continue; 16994a23d72ec21d1bdfda69fd16c9fc10cec39f1fedBill Wendling 17009b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng if (Reg == IncomingReg) { 17013f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman if (!Found) { 17023f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman if (MO.isKill()) 17033f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman // The register is already marked kill. 17043f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman return true; 1705ece48185168ab130b1777feb86d9e3fe80eb87d2Jakob Stoklund Olesen if (isPhysReg && isRegTiedToDefOperand(i)) 1706ece48185168ab130b1777feb86d9e3fe80eb87d2Jakob Stoklund Olesen // Two-address uses of physregs must not be marked kill. 1707ece48185168ab130b1777feb86d9e3fe80eb87d2Jakob Stoklund Olesen return true; 17083f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman MO.setIsKill(); 17093f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman Found = true; 17103f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman } 17113f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman } else if (hasAliases && MO.isKill() && 17123f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman TargetRegisterInfo::isPhysicalRegister(Reg)) { 17139b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng // A super-register kill already exists. 17149b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng if (RegInfo->isSuperRegister(IncomingReg, Reg)) 17152ebc11ac6d19ec806da97bd4f2d49a27932d09fbDan Gohman return true; 17162ebc11ac6d19ec806da97bd4f2d49a27932d09fbDan Gohman if (RegInfo->isSubRegister(IncomingReg, Reg)) 17179b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng DeadOps.push_back(i); 1718b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson } 1719b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson } 1720b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson 17219b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng // Trim unneeded kill operands. 17229b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng while (!DeadOps.empty()) { 17239b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng unsigned OpIdx = DeadOps.back(); 17249b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng if (getOperand(OpIdx).isImplicit()) 17259b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng RemoveOperand(OpIdx); 17269b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng else 17279b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng getOperand(OpIdx).setIsKill(false); 17289b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng DeadOps.pop_back(); 17299b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng } 17309b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng 17314a23d72ec21d1bdfda69fd16c9fc10cec39f1fedBill Wendling // If not found, this means an alias of one of the operands is killed. Add a 1732b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson // new implicit operand if required. 17333f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman if (!Found && AddIfNotFound) { 17344a23d72ec21d1bdfda69fd16c9fc10cec39f1fedBill Wendling addOperand(MachineOperand::CreateReg(IncomingReg, 17354a23d72ec21d1bdfda69fd16c9fc10cec39f1fedBill Wendling false /*IsDef*/, 17364a23d72ec21d1bdfda69fd16c9fc10cec39f1fedBill Wendling true /*IsImp*/, 17374a23d72ec21d1bdfda69fd16c9fc10cec39f1fedBill Wendling true /*IsKill*/)); 1738b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson return true; 1739b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson } 17403f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman return Found; 1741b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson} 1742b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson 17431a96c914315b0286d84c507d696484e2c95875a4Jakob Stoklund Olesenvoid MachineInstr::clearRegisterKills(unsigned Reg, 17441a96c914315b0286d84c507d696484e2c95875a4Jakob Stoklund Olesen const TargetRegisterInfo *RegInfo) { 17451a96c914315b0286d84c507d696484e2c95875a4Jakob Stoklund Olesen if (!TargetRegisterInfo::isPhysicalRegister(Reg)) 1746dce4a407a24b04eebc6a376f8e62b41aaa7b071fStephen Hines RegInfo = nullptr; 17471a96c914315b0286d84c507d696484e2c95875a4Jakob Stoklund Olesen for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 17481a96c914315b0286d84c507d696484e2c95875a4Jakob Stoklund Olesen MachineOperand &MO = getOperand(i); 17491a96c914315b0286d84c507d696484e2c95875a4Jakob Stoklund Olesen if (!MO.isReg() || !MO.isUse() || !MO.isKill()) 17501a96c914315b0286d84c507d696484e2c95875a4Jakob Stoklund Olesen continue; 17511a96c914315b0286d84c507d696484e2c95875a4Jakob Stoklund Olesen unsigned OpReg = MO.getReg(); 17521a96c914315b0286d84c507d696484e2c95875a4Jakob Stoklund Olesen if (OpReg == Reg || (RegInfo && RegInfo->isSuperRegister(Reg, OpReg))) 17531a96c914315b0286d84c507d696484e2c95875a4Jakob Stoklund Olesen MO.setIsKill(false); 17541a96c914315b0286d84c507d696484e2c95875a4Jakob Stoklund Olesen } 17551a96c914315b0286d84c507d696484e2c95875a4Jakob Stoklund Olesen} 17561a96c914315b0286d84c507d696484e2c95875a4Jakob Stoklund Olesen 17574afb5f560d2c3171eda8be6ae64998080dddec0cMatthias Braunbool MachineInstr::addRegisterDead(unsigned Reg, 17586f0d024a534af18d9e60b3ea757376cd8a3a980eDan Gohman const TargetRegisterInfo *RegInfo, 1759b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson bool AddIfNotFound) { 17604afb5f560d2c3171eda8be6ae64998080dddec0cMatthias Braun bool isPhysReg = TargetRegisterInfo::isPhysicalRegister(Reg); 1761396618b43a85e12d290a90b181c6af5d7c0c5f11Jakob Stoklund Olesen bool hasAliases = isPhysReg && 17624afb5f560d2c3171eda8be6ae64998080dddec0cMatthias Braun MCRegAliasIterator(Reg, RegInfo, false).isValid(); 17633f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman bool Found = false; 17649b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng SmallVector<unsigned,4> DeadOps; 1765b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 1766b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson MachineOperand &MO = getOperand(i); 1767d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (!MO.isReg() || !MO.isDef()) 17689b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng continue; 17694afb5f560d2c3171eda8be6ae64998080dddec0cMatthias Braun unsigned MOReg = MO.getReg(); 17704afb5f560d2c3171eda8be6ae64998080dddec0cMatthias Braun if (!MOReg) 17713f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman continue; 17723f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman 17734afb5f560d2c3171eda8be6ae64998080dddec0cMatthias Braun if (MOReg == Reg) { 1774b793bc1ccabef36b3223bae69f5e94a8e98d22ebJakob Stoklund Olesen MO.setIsDead(); 1775b793bc1ccabef36b3223bae69f5e94a8e98d22ebJakob Stoklund Olesen Found = true; 17763f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman } else if (hasAliases && MO.isDead() && 17774afb5f560d2c3171eda8be6ae64998080dddec0cMatthias Braun TargetRegisterInfo::isPhysicalRegister(MOReg)) { 17789b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng // There exists a super-register that's marked dead. 17794afb5f560d2c3171eda8be6ae64998080dddec0cMatthias Braun if (RegInfo->isSuperRegister(Reg, MOReg)) 17802ebc11ac6d19ec806da97bd4f2d49a27932d09fbDan Gohman return true; 17814afb5f560d2c3171eda8be6ae64998080dddec0cMatthias Braun if (RegInfo->isSubRegister(Reg, MOReg)) 17829b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng DeadOps.push_back(i); 1783b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson } 1784b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson } 1785b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson 17869b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng // Trim unneeded dead operands. 17879b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng while (!DeadOps.empty()) { 17889b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng unsigned OpIdx = DeadOps.back(); 17899b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng if (getOperand(OpIdx).isImplicit()) 17909b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng RemoveOperand(OpIdx); 17919b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng else 17929b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng getOperand(OpIdx).setIsDead(false); 17939b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng DeadOps.pop_back(); 17949b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng } 17959b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng 17963f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman // If not found, this means an alias of one of the operands is dead. Add a 17973f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman // new implicit operand if required. 179831530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner if (Found || !AddIfNotFound) 179931530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner return Found; 1800ee61d67c2f1105e23b2ea5110389f3b7b713b504Jim Grosbach 18014afb5f560d2c3171eda8be6ae64998080dddec0cMatthias Braun addOperand(MachineOperand::CreateReg(Reg, 180231530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner true /*IsDef*/, 180331530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner true /*IsImp*/, 180431530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner false /*IsKill*/, 180531530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner true /*IsDead*/)); 180631530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner return true; 1807b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson} 18088efadf94b568c08de3ff8ce35fd904a935387406Jakob Stoklund Olesen 18094afb5f560d2c3171eda8be6ae64998080dddec0cMatthias Braunvoid MachineInstr::addRegisterDefined(unsigned Reg, 18108efadf94b568c08de3ff8ce35fd904a935387406Jakob Stoklund Olesen const TargetRegisterInfo *RegInfo) { 18114afb5f560d2c3171eda8be6ae64998080dddec0cMatthias Braun if (TargetRegisterInfo::isPhysicalRegister(Reg)) { 18124afb5f560d2c3171eda8be6ae64998080dddec0cMatthias Braun MachineOperand *MO = findRegisterDefOperand(Reg, false, RegInfo); 181363e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen if (MO) 181463e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen return; 181563e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen } else { 181663e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 181763e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen const MachineOperand &MO = getOperand(i); 18184afb5f560d2c3171eda8be6ae64998080dddec0cMatthias Braun if (MO.isReg() && MO.getReg() == Reg && MO.isDef() && 181963e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen MO.getSubReg() == 0) 182063e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen return; 182163e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen } 182263e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen } 18234afb5f560d2c3171eda8be6ae64998080dddec0cMatthias Braun addOperand(MachineOperand::CreateReg(Reg, 182463e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen true /*IsDef*/, 182563e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen true /*IsImp*/)); 18268efadf94b568c08de3ff8ce35fd904a935387406Jakob Stoklund Olesen} 182767eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Cheng 1828a37818dbb119bda75273f16b8484732e742cdbb7Jakob Stoklund Olesenvoid MachineInstr::setPhysRegsDeadExcept(ArrayRef<unsigned> UsedRegs, 1829db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman const TargetRegisterInfo &TRI) { 183077180e0b402fff318cffd89a2251e46b3dce4064Jakob Stoklund Olesen bool HasRegMask = false; 1831db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 1832db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman MachineOperand &MO = getOperand(i); 183377180e0b402fff318cffd89a2251e46b3dce4064Jakob Stoklund Olesen if (MO.isRegMask()) { 183477180e0b402fff318cffd89a2251e46b3dce4064Jakob Stoklund Olesen HasRegMask = true; 183577180e0b402fff318cffd89a2251e46b3dce4064Jakob Stoklund Olesen continue; 183677180e0b402fff318cffd89a2251e46b3dce4064Jakob Stoklund Olesen } 1837db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman if (!MO.isReg() || !MO.isDef()) continue; 1838db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman unsigned Reg = MO.getReg(); 183959cb77fb11ec547f60ef0ff4a8ccf3bd8007ae46Jakob Stoklund Olesen if (!TargetRegisterInfo::isPhysicalRegister(Reg)) continue; 1840db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman bool Dead = true; 1841a37818dbb119bda75273f16b8484732e742cdbb7Jakob Stoklund Olesen for (ArrayRef<unsigned>::iterator I = UsedRegs.begin(), E = UsedRegs.end(); 1842a37818dbb119bda75273f16b8484732e742cdbb7Jakob Stoklund Olesen I != E; ++I) 1843db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman if (TRI.regsOverlap(*I, Reg)) { 1844db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman Dead = false; 1845db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman break; 1846db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman } 1847db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman // If there are no uses, including partial uses, the def is dead. 1848db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman if (Dead) MO.setIsDead(); 1849db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman } 185077180e0b402fff318cffd89a2251e46b3dce4064Jakob Stoklund Olesen 185177180e0b402fff318cffd89a2251e46b3dce4064Jakob Stoklund Olesen // This is a call with a register mask operand. 185277180e0b402fff318cffd89a2251e46b3dce4064Jakob Stoklund Olesen // Mask clobbers are always dead, so add defs for the non-dead defines. 185377180e0b402fff318cffd89a2251e46b3dce4064Jakob Stoklund Olesen if (HasRegMask) 185477180e0b402fff318cffd89a2251e46b3dce4064Jakob Stoklund Olesen for (ArrayRef<unsigned>::iterator I = UsedRegs.begin(), E = UsedRegs.end(); 185577180e0b402fff318cffd89a2251e46b3dce4064Jakob Stoklund Olesen I != E; ++I) 185677180e0b402fff318cffd89a2251e46b3dce4064Jakob Stoklund Olesen addRegisterDefined(*I, &TRI); 1857db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman} 1858db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman 185967eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Chengunsigned 186067eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan ChengMachineInstrExpressionTrait::getHashValue(const MachineInstr* const &MI) { 1861fc22625eb04d39b0de77090702cf50a9bcda3ddbChandler Carruth // Build up a buffer of hash code components. 1862fc22625eb04d39b0de77090702cf50a9bcda3ddbChandler Carruth SmallVector<size_t, 8> HashComponents; 1863fc22625eb04d39b0de77090702cf50a9bcda3ddbChandler Carruth HashComponents.reserve(MI->getNumOperands() + 1); 1864fc22625eb04d39b0de77090702cf50a9bcda3ddbChandler Carruth HashComponents.push_back(MI->getOpcode()); 186567eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Cheng for (unsigned i = 0, e = MI->getNumOperands(); i != e; ++i) { 186667eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Cheng const MachineOperand &MO = MI->getOperand(i); 1867d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth if (MO.isReg() && MO.isDef() && 1868d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth TargetRegisterInfo::isVirtualRegister(MO.getReg())) 1869d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth continue; // Skip virtual register defs. 1870d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth 1871d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth HashComponents.push_back(hash_value(MO)); 1872fc22625eb04d39b0de77090702cf50a9bcda3ddbChandler Carruth } 1873fc22625eb04d39b0de77090702cf50a9bcda3ddbChandler Carruth return hash_combine_range(HashComponents.begin(), HashComponents.end()); 187467eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Cheng} 1875d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen 1876d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesenvoid MachineInstr::emitError(StringRef Msg) const { 1877d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen // Find the source location cookie. 1878d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen unsigned LocCookie = 0; 1879dce4a407a24b04eebc6a376f8e62b41aaa7b071fStephen Hines const MDNode *LocMD = nullptr; 1880d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen for (unsigned i = getNumOperands(); i != 0; --i) { 1881d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen if (getOperand(i-1).isMetadata() && 1882d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen (LocMD = getOperand(i-1).getMetadata()) && 1883d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen LocMD->getNumOperands() != 0) { 1884d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen if (const ConstantInt *CI = dyn_cast<ConstantInt>(LocMD->getOperand(0))) { 1885d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen LocCookie = CI->getZExtValue(); 1886d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen break; 1887d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen } 1888d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen } 1889d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen } 1890d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen 1891d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen if (const MachineBasicBlock *MBB = getParent()) 1892d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen if (const MachineFunction *MF = MBB->getParent()) 1893d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen return MF->getMMI().getModule()->getContext().emitError(LocCookie, Msg); 1894d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen report_fatal_error(Msg); 1895d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen} 1896