MachineInstr.cpp revision c9df025e33ac435adb3b3318d237c36ca7cec659
1e138b3dd1ff02d826233482831318708a166ed93Chris Lattner//===-- lib/CodeGen/MachineInstr.cpp --------------------------------------===// 2edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman// 3b576c94c15af9a440f69d9d03c2afead7971118cJohn Criswell// The LLVM Compiler Infrastructure 4b576c94c15af9a440f69d9d03c2afead7971118cJohn Criswell// 54ee451de366474b9c228b4e5fa573795a715216dChris Lattner// This file is distributed under the University of Illinois Open Source 64ee451de366474b9c228b4e5fa573795a715216dChris Lattner// License. See LICENSE.TXT for details. 7edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman// 8b576c94c15af9a440f69d9d03c2afead7971118cJohn Criswell//===----------------------------------------------------------------------===// 921326fc2ad47ee7e73a8c0b03a4a0cc0b0a0c4e8Brian Gaeke// 1021326fc2ad47ee7e73a8c0b03a4a0cc0b0a0c4e8Brian Gaeke// Methods common to all machine instructions. 1121326fc2ad47ee7e73a8c0b03a4a0cc0b0a0c4e8Brian Gaeke// 12035dfbe7f2d109008d2d62d9f2a67efb477a7ab6Chris Lattner//===----------------------------------------------------------------------===// 1370bc4b5d1a3795a8f41be96723cfcbccac8e1671Vikram S. Adve 14822b4fb896846b87dd11a330ae13f2239329aeefChris Lattner#include "llvm/CodeGen/MachineInstr.h" 15fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng#include "llvm/Constants.h" 168c2b52552c90f39e4b2fed43e309e599e742b6acDan Gohman#include "llvm/Function.h" 17fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng#include "llvm/InlineAsm.h" 1872aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner#include "llvm/Metadata.h" 195e9cd434234a36089daeee915f1dc02b96947fbaChris Lattner#include "llvm/Type.h" 2084bc5427d6883f73cfeae3da640acd011d35c006Chris Lattner#include "llvm/Value.h" 21cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman#include "llvm/Assembly/Writer.h" 22506049f29f4f202a8e45feb916cc0264440a7f6dEvan Cheng#include "llvm/CodeGen/MachineConstantPool.h" 238517e1f0beea9b5e47974f083396d53294c390adChris Lattner#include "llvm/CodeGen/MachineFunction.h" 24c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman#include "llvm/CodeGen/MachineMemOperand.h" 2562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner#include "llvm/CodeGen/MachineRegisterInfo.h" 2669de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman#include "llvm/CodeGen/PseudoSourceValue.h" 2772aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner#include "llvm/MC/MCSymbol.h" 281049164aa6b06d91d9b3b557a9a213eaf3f6319aChris Lattner#include "llvm/Target/TargetMachine.h" 29bb81d97feb396a8bb21d074db1c57e9f66525f40Evan Cheng#include "llvm/Target/TargetInstrInfo.h" 30f14cf85e334ff03bbdd23e473f14ffa4fb025e94Chris Lattner#include "llvm/Target/TargetInstrDesc.h" 316f0d024a534af18d9e60b3ea757376cd8a3a980eDan Gohman#include "llvm/Target/TargetRegisterInfo.h" 32e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman#include "llvm/Analysis/AliasAnalysis.h" 33a26eae64ddf607549f9e47046d46ea5b9ec648b4Argyrios Kyrtzidis#include "llvm/Analysis/DebugInfo.h" 343b325334102144ec39910563eabebde434504564David Greene#include "llvm/Support/Debug.h" 35c25e7581b9b8088910da31702d4ca21c4734c6d7Torok Edwin#include "llvm/Support/ErrorHandling.h" 362c3f7ae3843bdc9dcfe85393e178211976c1f9bdDan Gohman#include "llvm/Support/LeakDetector.h" 37ce42e404a26454f4332c2c350c75ad27bbbb16f7Dan Gohman#include "llvm/Support/MathExtras.h" 38edfb72c6288118ab9c900a560ded89dfaa107296Chris Lattner#include "llvm/Support/raw_ostream.h" 39b8d2f550b84523e8a73198f98e5d450ec3b4fee7Dan Gohman#include "llvm/ADT/FoldingSet.h" 400742b59913a7760eb26f08121cd244a37e83e3b3Chris Lattnerusing namespace llvm; 41d0fde30ce850b78371fd1386338350591f9ff494Brian Gaeke 42f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner//===----------------------------------------------------------------------===// 43f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner// MachineOperand Implementation 44f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner//===----------------------------------------------------------------------===// 45f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner 4662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// AddRegOperandToRegInfo - Add this register operand to the specified 4762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// MachineRegisterInfo. If it is null, then the next/prev fields should be 4862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// explicitly nulled out. 4962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattnervoid MachineOperand::AddRegOperandToRegInfo(MachineRegisterInfo *RegInfo) { 50d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman assert(isReg() && "Can only add reg operand to use lists"); 5162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 5262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // If the reginfo pointer is null, just explicitly null out or next/prev 5362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // pointers, to ensure they are not garbage. 5462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (RegInfo == 0) { 5562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Contents.Reg.Prev = 0; 5662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Contents.Reg.Next = 0; 5762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner return; 5862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 5962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 6062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Otherwise, add this operand to the head of the registers use/def list. 6180fe5311b5e9e5c4642ff46ba2377173c17797f6Chris Lattner MachineOperand **Head = &RegInfo->getRegUseDefListHead(getReg()); 6262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 6380fe5311b5e9e5c4642ff46ba2377173c17797f6Chris Lattner // For SSA values, we prefer to keep the definition at the start of the list. 6480fe5311b5e9e5c4642ff46ba2377173c17797f6Chris Lattner // we do this by skipping over the definition if it is at the head of the 6580fe5311b5e9e5c4642ff46ba2377173c17797f6Chris Lattner // list. 6680fe5311b5e9e5c4642ff46ba2377173c17797f6Chris Lattner if (*Head && (*Head)->isDef()) 6780fe5311b5e9e5c4642ff46ba2377173c17797f6Chris Lattner Head = &(*Head)->Contents.Reg.Next; 6880fe5311b5e9e5c4642ff46ba2377173c17797f6Chris Lattner 6980fe5311b5e9e5c4642ff46ba2377173c17797f6Chris Lattner Contents.Reg.Next = *Head; 7062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (Contents.Reg.Next) { 7162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner assert(getReg() == Contents.Reg.Next->getReg() && 7262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner "Different regs on the same list!"); 7362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Contents.Reg.Next->Contents.Reg.Prev = &Contents.Reg.Next; 7462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 7562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 7680fe5311b5e9e5c4642ff46ba2377173c17797f6Chris Lattner Contents.Reg.Prev = Head; 7780fe5311b5e9e5c4642ff46ba2377173c17797f6Chris Lattner *Head = this; 7862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner} 7962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 803bc1a3735f216f4a122fe4a05d39f63888ab205aDan Gohman/// RemoveRegOperandFromRegInfo - Remove this register operand from the 813bc1a3735f216f4a122fe4a05d39f63888ab205aDan Gohman/// MachineRegisterInfo it is linked with. 823bc1a3735f216f4a122fe4a05d39f63888ab205aDan Gohmanvoid MachineOperand::RemoveRegOperandFromRegInfo() { 833bc1a3735f216f4a122fe4a05d39f63888ab205aDan Gohman assert(isOnRegUseList() && "Reg operand is not on a use list"); 843bc1a3735f216f4a122fe4a05d39f63888ab205aDan Gohman // Unlink this from the doubly linked list of operands. 853bc1a3735f216f4a122fe4a05d39f63888ab205aDan Gohman MachineOperand *NextOp = Contents.Reg.Next; 863bc1a3735f216f4a122fe4a05d39f63888ab205aDan Gohman *Contents.Reg.Prev = NextOp; 873bc1a3735f216f4a122fe4a05d39f63888ab205aDan Gohman if (NextOp) { 883bc1a3735f216f4a122fe4a05d39f63888ab205aDan Gohman assert(NextOp->getReg() == getReg() && "Corrupt reg use/def chain!"); 893bc1a3735f216f4a122fe4a05d39f63888ab205aDan Gohman NextOp->Contents.Reg.Prev = Contents.Reg.Prev; 903bc1a3735f216f4a122fe4a05d39f63888ab205aDan Gohman } 913bc1a3735f216f4a122fe4a05d39f63888ab205aDan Gohman Contents.Reg.Prev = 0; 923bc1a3735f216f4a122fe4a05d39f63888ab205aDan Gohman Contents.Reg.Next = 0; 933bc1a3735f216f4a122fe4a05d39f63888ab205aDan Gohman} 943bc1a3735f216f4a122fe4a05d39f63888ab205aDan Gohman 9562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattnervoid MachineOperand::setReg(unsigned Reg) { 9662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (getReg() == Reg) return; // No change. 9762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 9862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Otherwise, we have to change the register. If this operand is embedded 9962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // into a machine function, we need to update the old and new register's 10062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // use/def lists. 10162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (MachineInstr *MI = getParent()) 10262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (MachineBasicBlock *MBB = MI->getParent()) 10362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (MachineFunction *MF = MBB->getParent()) { 10462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner RemoveRegOperandFromRegInfo(); 1052594746045258958673ebe42db2a27a4d05b0b73Jakob Stoklund Olesen SmallContents.RegNo = Reg; 10662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner AddRegOperandToRegInfo(&MF->getRegInfo()); 10762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner return; 10862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 10962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 11062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Otherwise, just change the register, no problem. :) 1112594746045258958673ebe42db2a27a4d05b0b73Jakob Stoklund Olesen SmallContents.RegNo = Reg; 11262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner} 11362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 1142da53370241fdd1b5c291483311b34e609f06c73Jakob Stoklund Olesenvoid MachineOperand::substVirtReg(unsigned Reg, unsigned SubIdx, 1152da53370241fdd1b5c291483311b34e609f06c73Jakob Stoklund Olesen const TargetRegisterInfo &TRI) { 1162da53370241fdd1b5c291483311b34e609f06c73Jakob Stoklund Olesen assert(TargetRegisterInfo::isVirtualRegister(Reg)); 1172da53370241fdd1b5c291483311b34e609f06c73Jakob Stoklund Olesen if (SubIdx && getSubReg()) 1182da53370241fdd1b5c291483311b34e609f06c73Jakob Stoklund Olesen SubIdx = TRI.composeSubRegIndices(SubIdx, getSubReg()); 1192da53370241fdd1b5c291483311b34e609f06c73Jakob Stoklund Olesen setReg(Reg); 120a5135f60dd95275dcbc1123f866889151ced933dJakob Stoklund Olesen if (SubIdx) 121a5135f60dd95275dcbc1123f866889151ced933dJakob Stoklund Olesen setSubReg(SubIdx); 1222da53370241fdd1b5c291483311b34e609f06c73Jakob Stoklund Olesen} 1232da53370241fdd1b5c291483311b34e609f06c73Jakob Stoklund Olesen 1242da53370241fdd1b5c291483311b34e609f06c73Jakob Stoklund Olesenvoid MachineOperand::substPhysReg(unsigned Reg, const TargetRegisterInfo &TRI) { 1252da53370241fdd1b5c291483311b34e609f06c73Jakob Stoklund Olesen assert(TargetRegisterInfo::isPhysicalRegister(Reg)); 1262da53370241fdd1b5c291483311b34e609f06c73Jakob Stoklund Olesen if (getSubReg()) { 1272da53370241fdd1b5c291483311b34e609f06c73Jakob Stoklund Olesen Reg = TRI.getSubReg(Reg, getSubReg()); 1282da53370241fdd1b5c291483311b34e609f06c73Jakob Stoklund Olesen assert(Reg && "Invalid SubReg for physical register"); 1292da53370241fdd1b5c291483311b34e609f06c73Jakob Stoklund Olesen setSubReg(0); 1302da53370241fdd1b5c291483311b34e609f06c73Jakob Stoklund Olesen } 1312da53370241fdd1b5c291483311b34e609f06c73Jakob Stoklund Olesen setReg(Reg); 1322da53370241fdd1b5c291483311b34e609f06c73Jakob Stoklund Olesen} 1332da53370241fdd1b5c291483311b34e609f06c73Jakob Stoklund Olesen 13462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// ChangeToImmediate - Replace this operand with a new immediate operand of 13562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// the specified value. If an operand is known to be an immediate already, 13662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// the setImm method should be used. 13762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattnervoid MachineOperand::ChangeToImmediate(int64_t ImmVal) { 13862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // If this operand is currently a register operand, and if this is in a 13962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // function, deregister the operand from the register's use/def list. 140d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (isReg() && getParent() && getParent()->getParent() && 14162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner getParent()->getParent()->getParent()) 14262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner RemoveRegOperandFromRegInfo(); 14362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 14462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner OpKind = MO_Immediate; 14562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Contents.ImmVal = ImmVal; 14662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner} 14762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 14862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// ChangeToRegister - Replace this operand with a new register operand of 14962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// the specified value. If an operand is known to be an register already, 15062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// the setReg method should be used. 15162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattnervoid MachineOperand::ChangeToRegister(unsigned Reg, bool isDef, bool isImp, 1529653f9ec970147a12216d787078eab2f8b9c122aDale Johannesen bool isKill, bool isDead, bool isUndef, 1539653f9ec970147a12216d787078eab2f8b9c122aDale Johannesen bool isDebug) { 15462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // If this operand is already a register operand, use setReg to update the 15562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // register's use/def lists. 156d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (isReg()) { 157e009180f2bbcf5edbe3b583936c37c4b3be2d082Dale Johannesen assert(!isEarlyClobber()); 15862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner setReg(Reg); 15962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } else { 16062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Otherwise, change this to a register and set the reg#. 16162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner OpKind = MO_Register; 1622594746045258958673ebe42db2a27a4d05b0b73Jakob Stoklund Olesen SmallContents.RegNo = Reg; 16362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 16462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // If this operand is embedded in a function, add the operand to the 16562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // register's use/def list. 16662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (MachineInstr *MI = getParent()) 16762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (MachineBasicBlock *MBB = MI->getParent()) 16862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (MachineFunction *MF = MBB->getParent()) 16962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner AddRegOperandToRegInfo(&MF->getRegInfo()); 17062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 17162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 17262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner IsDef = isDef; 17362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner IsImp = isImp; 17462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner IsKill = isKill; 17562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner IsDead = isDead; 1764784f1fc73abf6005b7b7262d395af71b57b1255Evan Cheng IsUndef = isUndef; 177e009180f2bbcf5edbe3b583936c37c4b3be2d082Dale Johannesen IsEarlyClobber = false; 1789653f9ec970147a12216d787078eab2f8b9c122aDale Johannesen IsDebug = isDebug; 17962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner SubReg = 0; 18062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner} 18162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 182f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner/// isIdenticalTo - Return true if this operand is identical to the specified 183f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner/// operand. 184f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattnerbool MachineOperand::isIdenticalTo(const MachineOperand &Other) const { 18531530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner if (getType() != Other.getType() || 18631530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner getTargetFlags() != Other.getTargetFlags()) 18731530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner return false; 188f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner 189f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner switch (getType()) { 190c23197a26f34f559ea9797de51e187087c039c42Torok Edwin default: llvm_unreachable("Unrecognized operand type"); 191f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_Register: 192f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner return getReg() == Other.getReg() && isDef() == Other.isDef() && 193f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner getSubReg() == Other.getSubReg(); 194f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_Immediate: 195f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner return getImm() == Other.getImm(); 196e8b7ccf0c9a06831266d690d0b10ead71e0a4ac5Nate Begeman case MachineOperand::MO_FPImmediate: 197e8b7ccf0c9a06831266d690d0b10ead71e0a4ac5Nate Begeman return getFPImm() == Other.getFPImm(); 198f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_MachineBasicBlock: 199f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner return getMBB() == Other.getMBB(); 200f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_FrameIndex: 2018aa797aa51cd4ea1ec6f46f4891a6897944b75b2Chris Lattner return getIndex() == Other.getIndex(); 202f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_ConstantPoolIndex: 2038aa797aa51cd4ea1ec6f46f4891a6897944b75b2Chris Lattner return getIndex() == Other.getIndex() && getOffset() == Other.getOffset(); 204f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_JumpTableIndex: 2058aa797aa51cd4ea1ec6f46f4891a6897944b75b2Chris Lattner return getIndex() == Other.getIndex(); 206f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_GlobalAddress: 207f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner return getGlobal() == Other.getGlobal() && getOffset() == Other.getOffset(); 208f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_ExternalSymbol: 209f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner return !strcmp(getSymbolName(), Other.getSymbolName()) && 210f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner getOffset() == Other.getOffset(); 2118c2b52552c90f39e4b2fed43e309e599e742b6acDan Gohman case MachineOperand::MO_BlockAddress: 2128c2b52552c90f39e4b2fed43e309e599e742b6acDan Gohman return getBlockAddress() == Other.getBlockAddress(); 21372aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner case MachineOperand::MO_MCSymbol: 21472aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner return getMCSymbol() == Other.getMCSymbol(); 21524ad3ed71fe93059d1b46ffdbfe63259762bf547Chris Lattner case MachineOperand::MO_Metadata: 21624ad3ed71fe93059d1b46ffdbfe63259762bf547Chris Lattner return getMetadata() == Other.getMetadata(); 217f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner } 218f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner} 219f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner 220f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner/// print - Print the specified machine operand. 221f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner/// 2225ca6bd14a00ba5310ce1a632d3a0cc8f8af31433Mon P Wangvoid MachineOperand::print(raw_ostream &OS, const TargetMachine *TM) const { 22380f6c5898113806130975fd56d24929b06bf54f8Dan Gohman // If the instruction is embedded into a basic block, we can find the 22480f6c5898113806130975fd56d24929b06bf54f8Dan Gohman // target info for the instruction. 22580f6c5898113806130975fd56d24929b06bf54f8Dan Gohman if (!TM) 22680f6c5898113806130975fd56d24929b06bf54f8Dan Gohman if (const MachineInstr *MI = getParent()) 22780f6c5898113806130975fd56d24929b06bf54f8Dan Gohman if (const MachineBasicBlock *MBB = MI->getParent()) 22880f6c5898113806130975fd56d24929b06bf54f8Dan Gohman if (const MachineFunction *MF = MBB->getParent()) 22980f6c5898113806130975fd56d24929b06bf54f8Dan Gohman TM = &MF->getTarget(); 2304314268128be6d54c9a7f0709680e5a5b40f3ab3Jakob Stoklund Olesen const TargetRegisterInfo *TRI = TM ? TM->getRegisterInfo() : 0; 23180f6c5898113806130975fd56d24929b06bf54f8Dan Gohman 232f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner switch (getType()) { 233f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_Register: 2344314268128be6d54c9a7f0709680e5a5b40f3ab3Jakob Stoklund Olesen OS << PrintReg(getReg(), TRI, getSubReg()); 2352ccc83966914593d98af5671ce10a3bf2dcf7513Dan Gohman 2364784f1fc73abf6005b7b7262d395af71b57b1255Evan Cheng if (isDef() || isKill() || isDead() || isImplicit() || isUndef() || 2374784f1fc73abf6005b7b7262d395af71b57b1255Evan Cheng isEarlyClobber()) { 23831530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner OS << '<'; 239f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner bool NeedComma = false; 2400789707c49135bba69e0e308d0fbc41bb7cbe78aEvan Cheng if (isDef()) { 24131530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner if (NeedComma) OS << ','; 242913d3dfac43f29921467f33aa743f28ee1bfc5d1Dale Johannesen if (isEarlyClobber()) 243913d3dfac43f29921467f33aa743f28ee1bfc5d1Dale Johannesen OS << "earlyclobber,"; 2440789707c49135bba69e0e308d0fbc41bb7cbe78aEvan Cheng if (isImplicit()) 2450789707c49135bba69e0e308d0fbc41bb7cbe78aEvan Cheng OS << "imp-"; 246f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner OS << "def"; 247f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner NeedComma = true; 2485affca0763836e15ca15e78ed3a0fd56ef6b2e92Evan Cheng } else if (isImplicit()) { 2490789707c49135bba69e0e308d0fbc41bb7cbe78aEvan Cheng OS << "imp-use"; 2505affca0763836e15ca15e78ed3a0fd56ef6b2e92Evan Cheng NeedComma = true; 2515affca0763836e15ca15e78ed3a0fd56ef6b2e92Evan Cheng } 2520789707c49135bba69e0e308d0fbc41bb7cbe78aEvan Cheng 2534784f1fc73abf6005b7b7262d395af71b57b1255Evan Cheng if (isKill() || isDead() || isUndef()) { 25431530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner if (NeedComma) OS << ','; 255181eb737b28628adc4376b973610a02039385026Bill Wendling if (isKill()) OS << "kill"; 256181eb737b28628adc4376b973610a02039385026Bill Wendling if (isDead()) OS << "dead"; 2574784f1fc73abf6005b7b7262d395af71b57b1255Evan Cheng if (isUndef()) { 2584784f1fc73abf6005b7b7262d395af71b57b1255Evan Cheng if (isKill() || isDead()) 2594784f1fc73abf6005b7b7262d395af71b57b1255Evan Cheng OS << ','; 2604784f1fc73abf6005b7b7262d395af71b57b1255Evan Cheng OS << "undef"; 2614784f1fc73abf6005b7b7262d395af71b57b1255Evan Cheng } 262f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner } 26331530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner OS << '>'; 264f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner } 265f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner break; 266f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_Immediate: 267f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner OS << getImm(); 268f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner break; 269e8b7ccf0c9a06831266d690d0b10ead71e0a4ac5Nate Begeman case MachineOperand::MO_FPImmediate: 270cf0fe8d813727383d630055bb9d1cde21b00b7e7Chris Lattner if (getFPImm()->getType()->isFloatTy()) 271e8b7ccf0c9a06831266d690d0b10ead71e0a4ac5Nate Begeman OS << getFPImm()->getValueAPF().convertToFloat(); 27231530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner else 273e8b7ccf0c9a06831266d690d0b10ead71e0a4ac5Nate Begeman OS << getFPImm()->getValueAPF().convertToDouble(); 274e8b7ccf0c9a06831266d690d0b10ead71e0a4ac5Nate Begeman break; 275f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_MachineBasicBlock: 2760ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman OS << "<BB#" << getMBB()->getNumber() << ">"; 277f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner break; 278f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_FrameIndex: 27931530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner OS << "<fi#" << getIndex() << '>'; 280f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner break; 281f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_ConstantPoolIndex: 2828aa797aa51cd4ea1ec6f46f4891a6897944b75b2Chris Lattner OS << "<cp#" << getIndex(); 283f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner if (getOffset()) OS << "+" << getOffset(); 28431530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner OS << '>'; 285f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner break; 286f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_JumpTableIndex: 28731530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner OS << "<jt#" << getIndex() << '>'; 288f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner break; 289f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_GlobalAddress: 2908d4e3b5b48b245ed65259270a53fcaf0bf91d9f7Dan Gohman OS << "<ga:"; 2918d4e3b5b48b245ed65259270a53fcaf0bf91d9f7Dan Gohman WriteAsOperand(OS, getGlobal(), /*PrintType=*/false); 292f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner if (getOffset()) OS << "+" << getOffset(); 29331530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner OS << '>'; 294f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner break; 295f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_ExternalSymbol: 296f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner OS << "<es:" << getSymbolName(); 297f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner if (getOffset()) OS << "+" << getOffset(); 29831530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner OS << '>'; 299f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner break; 3008c2b52552c90f39e4b2fed43e309e599e742b6acDan Gohman case MachineOperand::MO_BlockAddress: 3015f72a5ebc84a1935878b5b2d3166a505c520cdfcDale Johannesen OS << '<'; 3020ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman WriteAsOperand(OS, getBlockAddress(), /*PrintType=*/false); 3038c2b52552c90f39e4b2fed43e309e599e742b6acDan Gohman OS << '>'; 3048c2b52552c90f39e4b2fed43e309e599e742b6acDan Gohman break; 3055f72a5ebc84a1935878b5b2d3166a505c520cdfcDale Johannesen case MachineOperand::MO_Metadata: 3065f72a5ebc84a1935878b5b2d3166a505c520cdfcDale Johannesen OS << '<'; 3075f72a5ebc84a1935878b5b2d3166a505c520cdfcDale Johannesen WriteAsOperand(OS, getMetadata(), /*PrintType=*/false); 3085f72a5ebc84a1935878b5b2d3166a505c520cdfcDale Johannesen OS << '>'; 3095f72a5ebc84a1935878b5b2d3166a505c520cdfcDale Johannesen break; 31072aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner case MachineOperand::MO_MCSymbol: 31172aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner OS << "<MCSym=" << *getMCSymbol() << '>'; 31272aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner break; 313f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner default: 314c23197a26f34f559ea9797de51e187087c039c42Torok Edwin llvm_unreachable("Unrecognized operand type"); 315f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner } 31631530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner 31731530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner if (unsigned TF = getTargetFlags()) 31831530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner OS << "[TF=" << TF << ']'; 319f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner} 320f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner 321f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner//===----------------------------------------------------------------------===// 322ce42e404a26454f4332c2c350c75ad27bbbb16f7Dan Gohman// MachineMemOperand Implementation 323ce42e404a26454f4332c2c350c75ad27bbbb16f7Dan Gohman//===----------------------------------------------------------------------===// 324ce42e404a26454f4332c2c350c75ad27bbbb16f7Dan Gohman 32540a858f6e71ed8d68779d00c63dad15baded3562Chris Lattner/// getAddrSpace - Return the LLVM IR address space number that this pointer 32640a858f6e71ed8d68779d00c63dad15baded3562Chris Lattner/// points into. 32740a858f6e71ed8d68779d00c63dad15baded3562Chris Lattnerunsigned MachinePointerInfo::getAddrSpace() const { 32840a858f6e71ed8d68779d00c63dad15baded3562Chris Lattner if (V == 0) return 0; 32940a858f6e71ed8d68779d00c63dad15baded3562Chris Lattner return cast<PointerType>(V->getType())->getAddressSpace(); 33040a858f6e71ed8d68779d00c63dad15baded3562Chris Lattner} 33140a858f6e71ed8d68779d00c63dad15baded3562Chris Lattner 332e8639036b1fb3a5b5e9589fe4e9f2ee1b77c36bdChris Lattner/// getConstantPool - Return a MachinePointerInfo record that refers to the 333e8639036b1fb3a5b5e9589fe4e9f2ee1b77c36bdChris Lattner/// constant pool. 334e8639036b1fb3a5b5e9589fe4e9f2ee1b77c36bdChris LattnerMachinePointerInfo MachinePointerInfo::getConstantPool() { 335e8639036b1fb3a5b5e9589fe4e9f2ee1b77c36bdChris Lattner return MachinePointerInfo(PseudoSourceValue::getConstantPool()); 336e8639036b1fb3a5b5e9589fe4e9f2ee1b77c36bdChris Lattner} 337e8639036b1fb3a5b5e9589fe4e9f2ee1b77c36bdChris Lattner 338e8639036b1fb3a5b5e9589fe4e9f2ee1b77c36bdChris Lattner/// getFixedStack - Return a MachinePointerInfo record that refers to the 339e8639036b1fb3a5b5e9589fe4e9f2ee1b77c36bdChris Lattner/// the specified FrameIndex. 340e8639036b1fb3a5b5e9589fe4e9f2ee1b77c36bdChris LattnerMachinePointerInfo MachinePointerInfo::getFixedStack(int FI, int64_t offset) { 341e8639036b1fb3a5b5e9589fe4e9f2ee1b77c36bdChris Lattner return MachinePointerInfo(PseudoSourceValue::getFixedStack(FI), offset); 342e8639036b1fb3a5b5e9589fe4e9f2ee1b77c36bdChris Lattner} 343e8639036b1fb3a5b5e9589fe4e9f2ee1b77c36bdChris Lattner 3441daa6f479dd5fb4123f1ffbb10a3825da7d2c6b8Chris LattnerMachinePointerInfo MachinePointerInfo::getJumpTable() { 3451daa6f479dd5fb4123f1ffbb10a3825da7d2c6b8Chris Lattner return MachinePointerInfo(PseudoSourceValue::getJumpTable()); 3461daa6f479dd5fb4123f1ffbb10a3825da7d2c6b8Chris Lattner} 3471daa6f479dd5fb4123f1ffbb10a3825da7d2c6b8Chris Lattner 3481daa6f479dd5fb4123f1ffbb10a3825da7d2c6b8Chris LattnerMachinePointerInfo MachinePointerInfo::getGOT() { 3491daa6f479dd5fb4123f1ffbb10a3825da7d2c6b8Chris Lattner return MachinePointerInfo(PseudoSourceValue::getGOT()); 3501daa6f479dd5fb4123f1ffbb10a3825da7d2c6b8Chris Lattner} 35140a858f6e71ed8d68779d00c63dad15baded3562Chris Lattner 352fc448ff89b4fb7721de9da0b96fd00c13160c4c7Chris LattnerMachinePointerInfo MachinePointerInfo::getStack(int64_t Offset) { 353fc448ff89b4fb7721de9da0b96fd00c13160c4c7Chris Lattner return MachinePointerInfo(PseudoSourceValue::getStack(), Offset); 354fc448ff89b4fb7721de9da0b96fd00c13160c4c7Chris Lattner} 355fc448ff89b4fb7721de9da0b96fd00c13160c4c7Chris Lattner 356da39c3964423744b4d79aebef8bece3e9141d5fcChris LattnerMachineMemOperand::MachineMemOperand(MachinePointerInfo ptrinfo, unsigned f, 357f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman uint64_t s, unsigned int a, 358f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman const MDNode *TBAAInfo) 359da39c3964423744b4d79aebef8bece3e9141d5fcChris Lattner : PtrInfo(ptrinfo), Size(s), 360f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman Flags((f & ((1 << MOMaxBits) - 1)) | ((Log2_32(a) + 1) << MOMaxBits)), 361f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman TBAAInfo(TBAAInfo) { 362da39c3964423744b4d79aebef8bece3e9141d5fcChris Lattner assert((PtrInfo.V == 0 || isa<PointerType>(PtrInfo.V->getType())) && 363da39c3964423744b4d79aebef8bece3e9141d5fcChris Lattner "invalid pointer value"); 36428f02fdd76f4efc05d14649e0eec90ce8e71e17eDan Gohman assert(getBaseAlignment() == a && "Alignment is not a power of 2!"); 365c5e1f98fdf44993c2bfe4c1ef633b2358cd718c1Dan Gohman assert((isLoad() || isStore()) && "Not a load/store!"); 366ce42e404a26454f4332c2c350c75ad27bbbb16f7Dan Gohman} 367ce42e404a26454f4332c2c350c75ad27bbbb16f7Dan Gohman 368b8d2f550b84523e8a73198f98e5d450ec3b4fee7Dan Gohman/// Profile - Gather unique data for the object. 369b8d2f550b84523e8a73198f98e5d450ec3b4fee7Dan Gohman/// 370b8d2f550b84523e8a73198f98e5d450ec3b4fee7Dan Gohmanvoid MachineMemOperand::Profile(FoldingSetNodeID &ID) const { 371e8e2e80f40495fdd5ad475beb54fcf0989b6b7c5Chris Lattner ID.AddInteger(getOffset()); 372b8d2f550b84523e8a73198f98e5d450ec3b4fee7Dan Gohman ID.AddInteger(Size); 373e8e2e80f40495fdd5ad475beb54fcf0989b6b7c5Chris Lattner ID.AddPointer(getValue()); 374b8d2f550b84523e8a73198f98e5d450ec3b4fee7Dan Gohman ID.AddInteger(Flags); 375b8d2f550b84523e8a73198f98e5d450ec3b4fee7Dan Gohman} 376b8d2f550b84523e8a73198f98e5d450ec3b4fee7Dan Gohman 377c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohmanvoid MachineMemOperand::refineAlignment(const MachineMemOperand *MMO) { 378c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman // The Value and Offset may differ due to CSE. But the flags and size 379c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman // should be the same. 380c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman assert(MMO->getFlags() == getFlags() && "Flags mismatch!"); 381c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman assert(MMO->getSize() == getSize() && "Size mismatch!"); 382c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman 383c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman if (MMO->getBaseAlignment() >= getBaseAlignment()) { 384c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman // Update the alignment value. 385ba2b297ca53cd685ba397177e9d2d8c239da971eDavid Greene Flags = (Flags & ((1 << MOMaxBits) - 1)) | 386ba2b297ca53cd685ba397177e9d2d8c239da971eDavid Greene ((Log2_32(MMO->getBaseAlignment()) + 1) << MOMaxBits); 387c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman // Also update the base and offset, because the new alignment may 388c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman // not be applicable with the old ones. 389e8e2e80f40495fdd5ad475beb54fcf0989b6b7c5Chris Lattner PtrInfo = MMO->PtrInfo; 390c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman } 391c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman} 392c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman 3934b2ebc19288491cb068f268c311d9fef0ec6a29fDan Gohman/// getAlignment - Return the minimum known alignment in bytes of the 3944b2ebc19288491cb068f268c311d9fef0ec6a29fDan Gohman/// actual memory reference. 3954b2ebc19288491cb068f268c311d9fef0ec6a29fDan Gohmanuint64_t MachineMemOperand::getAlignment() const { 3964b2ebc19288491cb068f268c311d9fef0ec6a29fDan Gohman return MinAlign(getBaseAlignment(), getOffset()); 3974b2ebc19288491cb068f268c311d9fef0ec6a29fDan Gohman} 3984b2ebc19288491cb068f268c311d9fef0ec6a29fDan Gohman 399c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohmanraw_ostream &llvm::operator<<(raw_ostream &OS, const MachineMemOperand &MMO) { 400c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman assert((MMO.isLoad() || MMO.isStore()) && 401cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman "SV has to be a load, store or both."); 402cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman 403c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman if (MMO.isVolatile()) 404cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman OS << "Volatile "; 405cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman 406c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman if (MMO.isLoad()) 407cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman OS << "LD"; 408c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman if (MMO.isStore()) 409cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman OS << "ST"; 410c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman OS << MMO.getSize(); 411cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman 412cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman // Print the address information. 413cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman OS << "["; 414c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman if (!MMO.getValue()) 415cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman OS << "<unknown>"; 416cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman else 417c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman WriteAsOperand(OS, MMO.getValue(), /*PrintType=*/false); 418cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman 419cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman // If the alignment of the memory reference itself differs from the alignment 420cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman // of the base pointer, print the base alignment explicitly, next to the base 421cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman // pointer. 422c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman if (MMO.getBaseAlignment() != MMO.getAlignment()) 423c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman OS << "(align=" << MMO.getBaseAlignment() << ")"; 424cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman 425c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman if (MMO.getOffset() != 0) 426c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman OS << "+" << MMO.getOffset(); 427cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman OS << "]"; 428cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman 429cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman // Print the alignment of the reference. 430c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman if (MMO.getBaseAlignment() != MMO.getAlignment() || 431c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman MMO.getBaseAlignment() != MMO.getSize()) 432c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman OS << "(align=" << MMO.getAlignment() << ")"; 433cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman 434f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman // Print TBAA info. 435f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman if (const MDNode *TBAAInfo = MMO.getTBAAInfo()) { 436f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman OS << "(tbaa="; 437f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman if (TBAAInfo->getNumOperands() > 0) 438f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman WriteAsOperand(OS, TBAAInfo->getOperand(0), /*PrintType=*/false); 439f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman else 440f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman OS << "<unknown>"; 441f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman OS << ")"; 442f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman } 443f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman 444cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman return OS; 445cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman} 446cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman 447ce42e404a26454f4332c2c350c75ad27bbbb16f7Dan Gohman//===----------------------------------------------------------------------===// 448f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner// MachineInstr Implementation 449f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner//===----------------------------------------------------------------------===// 450f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner 451c0f64ffab93d11fb27a3b8a0707b77400918a20eEvan Cheng/// MachineInstr ctor - This constructor creates a dummy MachineInstr with 45267f660cb080965ea93ed6d7265a67100f2fe38e4Evan Cheng/// TID NULL and no operands. 453c0f64ffab93d11fb27a3b8a0707b77400918a20eEvan ChengMachineInstr::MachineInstr() 454834651c94535bfb054449e6c01d5c77ab7a117d3Dan Gohman : TID(0), NumImplicitOps(0), AsmPrinterFlags(0), MemRefs(0), MemRefsEnd(0), 455a4f2bb08de92ccec21cbb3d0a9518384b0173660Chris Lattner Parent(0) { 4562c3f7ae3843bdc9dcfe85393e178211976c1f9bdDan Gohman // Make sure that we get added to a machine basicblock 4572c3f7ae3843bdc9dcfe85393e178211976c1f9bdDan Gohman LeakDetector::addGarbageObject(this); 4587279122e668816bed0d4f38d3392bbab0140fad0Chris Lattner} 4597279122e668816bed0d4f38d3392bbab0140fad0Chris Lattner 46067f660cb080965ea93ed6d7265a67100f2fe38e4Evan Chengvoid MachineInstr::addImplicitDefUseOperands() { 46167f660cb080965ea93ed6d7265a67100f2fe38e4Evan Cheng if (TID->ImplicitDefs) 462a4161ee99478e7f8f9e33481e1c0dc79f0b4bd7dChris Lattner for (const unsigned *ImpDefs = TID->ImplicitDefs; *ImpDefs; ++ImpDefs) 4638019f41c0b7fda031d494e3900eada7d4e494772Chris Lattner addOperand(MachineOperand::CreateReg(*ImpDefs, true, true)); 46467f660cb080965ea93ed6d7265a67100f2fe38e4Evan Cheng if (TID->ImplicitUses) 465a4161ee99478e7f8f9e33481e1c0dc79f0b4bd7dChris Lattner for (const unsigned *ImpUses = TID->ImplicitUses; *ImpUses; ++ImpUses) 4668019f41c0b7fda031d494e3900eada7d4e494772Chris Lattner addOperand(MachineOperand::CreateReg(*ImpUses, false, true)); 467d7de496b23fca8145f777a56281457bf64e8bbadEvan Cheng} 468d7de496b23fca8145f777a56281457bf64e8bbadEvan Cheng 4690855cadb00c598d4e78c8f1842a9c1b9bf19c667Bob Wilson/// MachineInstr ctor - This constructor creates a MachineInstr and adds the 4700855cadb00c598d4e78c8f1842a9c1b9bf19c667Bob Wilson/// implicit operands. It reserves space for the number of operands specified by 4710855cadb00c598d4e78c8f1842a9c1b9bf19c667Bob Wilson/// the TargetInstrDesc. 472749c6f6b5ed301c84aac562e414486549d7b98ebChris LattnerMachineInstr::MachineInstr(const TargetInstrDesc &tid, bool NoImp) 473834651c94535bfb054449e6c01d5c77ab7a117d3Dan Gohman : TID(&tid), NumImplicitOps(0), AsmPrinterFlags(0), 474a4f2bb08de92ccec21cbb3d0a9518384b0173660Chris Lattner MemRefs(0), MemRefsEnd(0), Parent(0) { 4751793ab9e70c48146a5f1592b84b2b93e38c67fa4Bob Wilson if (!NoImp) 4761793ab9e70c48146a5f1592b84b2b93e38c67fa4Bob Wilson NumImplicitOps = TID->getNumImplicitDefs() + TID->getNumImplicitUses(); 477349c4952009525b27383e2120a6b3c998f39bd09Chris Lattner Operands.reserve(NumImplicitOps + TID->getNumOperands()); 478fa9457276a2174aaf302240dd32d89900ad021aeEvan Cheng if (!NoImp) 479fa9457276a2174aaf302240dd32d89900ad021aeEvan Cheng addImplicitDefUseOperands(); 4802c3f7ae3843bdc9dcfe85393e178211976c1f9bdDan Gohman // Make sure that we get added to a machine basicblock 4812c3f7ae3843bdc9dcfe85393e178211976c1f9bdDan Gohman LeakDetector::addGarbageObject(this); 482d7de496b23fca8145f777a56281457bf64e8bbadEvan Cheng} 483d7de496b23fca8145f777a56281457bf64e8bbadEvan Cheng 48406efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen/// MachineInstr ctor - As above, but with a DebugLoc. 48506efc02854a96a9f92edc3bf46b0451f488cf2e6Dale JohannesenMachineInstr::MachineInstr(const TargetInstrDesc &tid, const DebugLoc dl, 48606efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen bool NoImp) 487834651c94535bfb054449e6c01d5c77ab7a117d3Dan Gohman : TID(&tid), NumImplicitOps(0), AsmPrinterFlags(0), MemRefs(0), MemRefsEnd(0), 488c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman Parent(0), debugLoc(dl) { 4891793ab9e70c48146a5f1592b84b2b93e38c67fa4Bob Wilson if (!NoImp) 4901793ab9e70c48146a5f1592b84b2b93e38c67fa4Bob Wilson NumImplicitOps = TID->getNumImplicitDefs() + TID->getNumImplicitUses(); 49106efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen Operands.reserve(NumImplicitOps + TID->getNumOperands()); 49206efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen if (!NoImp) 49306efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen addImplicitDefUseOperands(); 49406efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen // Make sure that we get added to a machine basicblock 49506efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen LeakDetector::addGarbageObject(this); 49606efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen} 49706efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen 49806efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen/// MachineInstr ctor - Work exactly the same as the ctor two above, except 49906efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen/// that the MachineInstr is created and added to the end of the specified 50006efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen/// basic block. 50106efc02854a96a9f92edc3bf46b0451f488cf2e6Dale JohannesenMachineInstr::MachineInstr(MachineBasicBlock *MBB, const TargetInstrDesc &tid) 502834651c94535bfb054449e6c01d5c77ab7a117d3Dan Gohman : TID(&tid), NumImplicitOps(0), AsmPrinterFlags(0), 503a4f2bb08de92ccec21cbb3d0a9518384b0173660Chris Lattner MemRefs(0), MemRefsEnd(0), Parent(0) { 50406efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen assert(MBB && "Cannot use inserting ctor with null basic block!"); 5051793ab9e70c48146a5f1592b84b2b93e38c67fa4Bob Wilson NumImplicitOps = TID->getNumImplicitDefs() + TID->getNumImplicitUses(); 50606efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen Operands.reserve(NumImplicitOps + TID->getNumOperands()); 50706efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen addImplicitDefUseOperands(); 50806efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen // Make sure that we get added to a machine basicblock 50906efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen LeakDetector::addGarbageObject(this); 51006efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen MBB->push_back(this); // Add instruction to end of basic block! 51106efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen} 51206efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen 51306efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen/// MachineInstr ctor - As above, but with a DebugLoc. 514ddd7fcb887be752ec8167276a697994ad9cb9c4eChris Lattner/// 51506efc02854a96a9f92edc3bf46b0451f488cf2e6Dale JohannesenMachineInstr::MachineInstr(MachineBasicBlock *MBB, const DebugLoc dl, 516749c6f6b5ed301c84aac562e414486549d7b98ebChris Lattner const TargetInstrDesc &tid) 517834651c94535bfb054449e6c01d5c77ab7a117d3Dan Gohman : TID(&tid), NumImplicitOps(0), AsmPrinterFlags(0), MemRefs(0), MemRefsEnd(0), 518c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman Parent(0), debugLoc(dl) { 519ddd7fcb887be752ec8167276a697994ad9cb9c4eChris Lattner assert(MBB && "Cannot use inserting ctor with null basic block!"); 5201793ab9e70c48146a5f1592b84b2b93e38c67fa4Bob Wilson NumImplicitOps = TID->getNumImplicitDefs() + TID->getNumImplicitUses(); 521349c4952009525b27383e2120a6b3c998f39bd09Chris Lattner Operands.reserve(NumImplicitOps + TID->getNumOperands()); 52267f660cb080965ea93ed6d7265a67100f2fe38e4Evan Cheng addImplicitDefUseOperands(); 5232c3f7ae3843bdc9dcfe85393e178211976c1f9bdDan Gohman // Make sure that we get added to a machine basicblock 5242c3f7ae3843bdc9dcfe85393e178211976c1f9bdDan Gohman LeakDetector::addGarbageObject(this); 525ddd7fcb887be752ec8167276a697994ad9cb9c4eChris Lattner MBB->push_back(this); // Add instruction to end of basic block! 526ddd7fcb887be752ec8167276a697994ad9cb9c4eChris Lattner} 527ddd7fcb887be752ec8167276a697994ad9cb9c4eChris Lattner 528ce22e76996d3ff0930716fa60c29df60a7e0481bMisha Brukman/// MachineInstr ctor - Copies MachineInstr arg exactly 529ce22e76996d3ff0930716fa60c29df60a7e0481bMisha Brukman/// 5301ed9922794cda9dbe295e74674b909287e544632Evan ChengMachineInstr::MachineInstr(MachineFunction &MF, const MachineInstr &MI) 531834651c94535bfb054449e6c01d5c77ab7a117d3Dan Gohman : TID(&MI.getDesc()), NumImplicitOps(0), AsmPrinterFlags(0), 532c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman MemRefs(MI.MemRefs), MemRefsEnd(MI.MemRefsEnd), 533c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman Parent(0), debugLoc(MI.getDebugLoc()) { 534943b5e117fe9a087f9aa529a2632c2d32cc22374Chris Lattner Operands.reserve(MI.getNumOperands()); 535b5159ed0cb7943e5938782f7693beb18342165ceTanya Lattner 536ce22e76996d3ff0930716fa60c29df60a7e0481bMisha Brukman // Add operands 5371ed9922794cda9dbe295e74674b909287e544632Evan Cheng for (unsigned i = 0; i != MI.getNumOperands(); ++i) 5381ed9922794cda9dbe295e74674b909287e544632Evan Cheng addOperand(MI.getOperand(i)); 5391ed9922794cda9dbe295e74674b909287e544632Evan Cheng NumImplicitOps = MI.NumImplicitOps; 5400c63e03e04d3982e1913479bba404c3debc9a27eTanya Lattner 5418e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman // Set parent to null. 542f20c1a497fe3922ac718429d65a5fe396890575eChris Lattner Parent = 0; 5436116a73da420d9b414a34ce2599dc7f6476e23fcDan Gohman 5446116a73da420d9b414a34ce2599dc7f6476e23fcDan Gohman LeakDetector::addGarbageObject(this); 545466b534a570f574ed485d875bbca8454f68dcb52Tanya Lattner} 546466b534a570f574ed485d875bbca8454f68dcb52Tanya Lattner 547ce22e76996d3ff0930716fa60c29df60a7e0481bMisha BrukmanMachineInstr::~MachineInstr() { 5482c3f7ae3843bdc9dcfe85393e178211976c1f9bdDan Gohman LeakDetector::removeGarbageObject(this); 549e12d6abfdfc5141b2001f0c369a0e1525315b9c0Chris Lattner#ifndef NDEBUG 55062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner for (unsigned i = 0, e = Operands.size(); i != e; ++i) { 551e12d6abfdfc5141b2001f0c369a0e1525315b9c0Chris Lattner assert(Operands[i].ParentMI == this && "ParentMI mismatch!"); 552d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman assert((!Operands[i].isReg() || !Operands[i].isOnRegUseList()) && 55362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner "Reg operand def/use list corrupted"); 55462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 555e12d6abfdfc5141b2001f0c369a0e1525315b9c0Chris Lattner#endif 556aad5c0505183a5b7913f1a443a1f0650122551ccAlkis Evlogimenos} 557aad5c0505183a5b7913f1a443a1f0650122551ccAlkis Evlogimenos 55862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// getRegInfo - If this instruction is embedded into a MachineFunction, 55962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// return the MachineRegisterInfo object for the current function, otherwise 56062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// return null. 56162ed6b9ade63bf01717ce5274fa11e93e873d245Chris LattnerMachineRegisterInfo *MachineInstr::getRegInfo() { 56262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (MachineBasicBlock *MBB = getParent()) 5634e526b9a5b36d9bac170c03df0a5d6fb76740ae2Dan Gohman return &MBB->getParent()->getRegInfo(); 56462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner return 0; 56562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner} 56662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 56762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// RemoveRegOperandsFromUseLists - Unlink all of the register operands in 56862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// this instruction from their respective use lists. This requires that the 56962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// operands already be on their use lists. 57062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattnervoid MachineInstr::RemoveRegOperandsFromUseLists() { 57162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner for (unsigned i = 0, e = Operands.size(); i != e; ++i) { 572d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (Operands[i].isReg()) 57362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands[i].RemoveRegOperandFromRegInfo(); 57462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 57562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner} 57662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 57762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// AddRegOperandsToUseLists - Add all of the register operands in 57862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// this instruction from their respective use lists. This requires that the 57962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// operands not be on their use lists yet. 58062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattnervoid MachineInstr::AddRegOperandsToUseLists(MachineRegisterInfo &RegInfo) { 58162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner for (unsigned i = 0, e = Operands.size(); i != e; ++i) { 582d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (Operands[i].isReg()) 58362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands[i].AddRegOperandToRegInfo(&RegInfo); 58462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 58562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner} 58662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 58762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 58862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// addOperand - Add the specified operand to the instruction. If it is an 58962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// implicit operand, it is added to the end of the operand list. If it is 59062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// an explicit operand it is added at the end of the explicit operand list 59162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// (before the first implicit operand). 59262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattnervoid MachineInstr::addOperand(const MachineOperand &Op) { 593d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman bool isImpReg = Op.isReg() && Op.isImplicit(); 59462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner assert((isImpReg || !OperandsComplete()) && 59562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner "Trying to add an operand to a machine instr that is already done!"); 59662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 597bcf28c08b3f0a3c4aa1be8f1485f6452d9a2b690Dan Gohman MachineRegisterInfo *RegInfo = getRegInfo(); 598bcf28c08b3f0a3c4aa1be8f1485f6452d9a2b690Dan Gohman 59962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // If we are adding the operand to the end of the list, our job is simpler. 60062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // This is true most of the time, so this is a reasonable optimization. 60162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (isImpReg || NumImplicitOps == 0) { 60262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // We can only do this optimization if we know that the operand list won't 60362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // reallocate. 60462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (Operands.empty() || Operands.size()+1 <= Operands.capacity()) { 60562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands.push_back(Op); 60662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 60762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Set the parent of the operand. 60862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands.back().ParentMI = this; 60962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 61062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // If the operand is a register, update the operand's use list. 61106801722a43c697eff0acee905de6b50257ce19bJim Grosbach if (Op.isReg()) { 612bcf28c08b3f0a3c4aa1be8f1485f6452d9a2b690Dan Gohman Operands.back().AddRegOperandToRegInfo(RegInfo); 61306801722a43c697eff0acee905de6b50257ce19bJim Grosbach // If the register operand is flagged as early, mark the operand as such 61406801722a43c697eff0acee905de6b50257ce19bJim Grosbach unsigned OpNo = Operands.size() - 1; 61506801722a43c697eff0acee905de6b50257ce19bJim Grosbach if (TID->getOperandConstraint(OpNo, TOI::EARLY_CLOBBER) != -1) 61606801722a43c697eff0acee905de6b50257ce19bJim Grosbach Operands[OpNo].setIsEarlyClobber(true); 61706801722a43c697eff0acee905de6b50257ce19bJim Grosbach } 61862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner return; 61962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 62062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 62162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 62262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Otherwise, we have to insert a real operand before any implicit ones. 62362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner unsigned OpNo = Operands.size()-NumImplicitOps; 62462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 62562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // If this instruction isn't embedded into a function, then we don't need to 62662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // update any operand lists. 62762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (RegInfo == 0) { 62862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Simple insertion, no reginfo update needed for other register operands. 62962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands.insert(Operands.begin()+OpNo, Op); 63062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands[OpNo].ParentMI = this; 63162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 63262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Do explicitly set the reginfo for this operand though, to ensure the 63362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // next/prev fields are properly nulled out. 63406801722a43c697eff0acee905de6b50257ce19bJim Grosbach if (Operands[OpNo].isReg()) { 63562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands[OpNo].AddRegOperandToRegInfo(0); 63606801722a43c697eff0acee905de6b50257ce19bJim Grosbach // If the register operand is flagged as early, mark the operand as such 63706801722a43c697eff0acee905de6b50257ce19bJim Grosbach if (TID->getOperandConstraint(OpNo, TOI::EARLY_CLOBBER) != -1) 63806801722a43c697eff0acee905de6b50257ce19bJim Grosbach Operands[OpNo].setIsEarlyClobber(true); 63906801722a43c697eff0acee905de6b50257ce19bJim Grosbach } 64062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 64162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } else if (Operands.size()+1 <= Operands.capacity()) { 64262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Otherwise, we have to remove register operands from their register use 64362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // list, add the operand, then add the register operands back to their use 64462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // list. This also must handle the case when the operand list reallocates 64562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // to somewhere else. 64662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 64762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // If insertion of this operand won't cause reallocation of the operand 64862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // list, just remove the implicit operands, add the operand, then re-add all 64962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // the rest of the operands. 65062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner for (unsigned i = OpNo, e = Operands.size(); i != e; ++i) { 651d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman assert(Operands[i].isReg() && "Should only be an implicit reg!"); 65262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands[i].RemoveRegOperandFromRegInfo(); 65362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 65462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 65562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Add the operand. If it is a register, add it to the reg list. 65662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands.insert(Operands.begin()+OpNo, Op); 65762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands[OpNo].ParentMI = this; 65862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 65906801722a43c697eff0acee905de6b50257ce19bJim Grosbach if (Operands[OpNo].isReg()) { 66062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands[OpNo].AddRegOperandToRegInfo(RegInfo); 66106801722a43c697eff0acee905de6b50257ce19bJim Grosbach // If the register operand is flagged as early, mark the operand as such 66206801722a43c697eff0acee905de6b50257ce19bJim Grosbach if (TID->getOperandConstraint(OpNo, TOI::EARLY_CLOBBER) != -1) 66306801722a43c697eff0acee905de6b50257ce19bJim Grosbach Operands[OpNo].setIsEarlyClobber(true); 66406801722a43c697eff0acee905de6b50257ce19bJim Grosbach } 66562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 66662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Re-add all the implicit ops. 66762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner for (unsigned i = OpNo+1, e = Operands.size(); i != e; ++i) { 668d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman assert(Operands[i].isReg() && "Should only be an implicit reg!"); 66962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands[i].AddRegOperandToRegInfo(RegInfo); 67062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 67162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } else { 67262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Otherwise, we will be reallocating the operand list. Remove all reg 67362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // operands from their list, then readd them after the operand list is 67462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // reallocated. 67562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner RemoveRegOperandsFromUseLists(); 67662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 67762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands.insert(Operands.begin()+OpNo, Op); 67862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands[OpNo].ParentMI = this; 67962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 68062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Re-add all the operands. 68162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner AddRegOperandsToUseLists(*RegInfo); 68206801722a43c697eff0acee905de6b50257ce19bJim Grosbach 68306801722a43c697eff0acee905de6b50257ce19bJim Grosbach // If the register operand is flagged as early, mark the operand as such 68406801722a43c697eff0acee905de6b50257ce19bJim Grosbach if (Operands[OpNo].isReg() 68506801722a43c697eff0acee905de6b50257ce19bJim Grosbach && TID->getOperandConstraint(OpNo, TOI::EARLY_CLOBBER) != -1) 68606801722a43c697eff0acee905de6b50257ce19bJim Grosbach Operands[OpNo].setIsEarlyClobber(true); 68762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 68862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner} 68962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 69062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// RemoveOperand - Erase an operand from an instruction, leaving it with one 69162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// fewer operand than it started with. 69262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// 69362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattnervoid MachineInstr::RemoveOperand(unsigned OpNo) { 69462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner assert(OpNo < Operands.size() && "Invalid operand number"); 69562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 69662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Special case removing the last one. 69762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (OpNo == Operands.size()-1) { 69862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // If needed, remove from the reg def/use list. 699d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (Operands.back().isReg() && Operands.back().isOnRegUseList()) 70062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands.back().RemoveRegOperandFromRegInfo(); 70162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 70262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands.pop_back(); 70362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner return; 70462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 70562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 70662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Otherwise, we are removing an interior operand. If we have reginfo to 70762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // update, remove all operands that will be shifted down from their reg lists, 70862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // move everything down, then re-add them. 70962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner MachineRegisterInfo *RegInfo = getRegInfo(); 71062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (RegInfo) { 71162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner for (unsigned i = OpNo, e = Operands.size(); i != e; ++i) { 712d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (Operands[i].isReg()) 71362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands[i].RemoveRegOperandFromRegInfo(); 71462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 71562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 71662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 71762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands.erase(Operands.begin()+OpNo); 71862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 71962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (RegInfo) { 72062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner for (unsigned i = OpNo, e = Operands.size(); i != e; ++i) { 721d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (Operands[i].isReg()) 72262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands[i].AddRegOperandToRegInfo(RegInfo); 72362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 72462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 72562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner} 72662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 727c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman/// addMemOperand - Add a MachineMemOperand to the machine instruction. 728c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman/// This function should be used only occasionally. The setMemRefs function 729c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman/// is the primary method for setting up a MachineInstr's MemRefs list. 7308e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohmanvoid MachineInstr::addMemOperand(MachineFunction &MF, 731c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman MachineMemOperand *MO) { 732c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman mmo_iterator OldMemRefs = MemRefs; 733c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman mmo_iterator OldMemRefsEnd = MemRefsEnd; 7348e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman 735c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman size_t NewNum = (MemRefsEnd - MemRefs) + 1; 736c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman mmo_iterator NewMemRefs = MF.allocateMemRefsArray(NewNum); 737c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman mmo_iterator NewMemRefsEnd = NewMemRefs + NewNum; 7388e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman 739c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman std::copy(OldMemRefs, OldMemRefsEnd, NewMemRefs); 740c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman NewMemRefs[NewNum - 1] = MO; 741c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman 742c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman MemRefs = NewMemRefs; 743c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman MemRefsEnd = NewMemRefsEnd; 744c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman} 74562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 746506049f29f4f202a8e45feb916cc0264440a7f6dEvan Chengbool MachineInstr::isIdenticalTo(const MachineInstr *Other, 747506049f29f4f202a8e45feb916cc0264440a7f6dEvan Cheng MICheckType Check) const { 74834cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng // If opcodes or number of operands are not the same then the two 74934cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng // instructions are obviously not identical. 75034cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng if (Other->getOpcode() != getOpcode() || 75134cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng Other->getNumOperands() != getNumOperands()) 75234cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng return false; 75334cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng 75434cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng // Check operands to make sure they match. 75534cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 75634cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng const MachineOperand &MO = getOperand(i); 75734cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng const MachineOperand &OMO = Other->getOperand(i); 75834cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng // Clients may or may not want to ignore defs when testing for equality. 75934cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng // For example, machine CSE pass only cares about finding common 76034cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng // subexpressions, so it's safe to ignore virtual register defs. 76134cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng if (Check != CheckDefs && MO.isReg() && MO.isDef()) { 76234cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng if (Check == IgnoreDefs) 76334cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng continue; 76434cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng // Check == IgnoreVRegDefs 76534cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng if (TargetRegisterInfo::isPhysicalRegister(MO.getReg()) || 76634cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng TargetRegisterInfo::isPhysicalRegister(OMO.getReg())) 76734cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng if (MO.getReg() != OMO.getReg()) 76834cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng return false; 76934cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng } else if (!MO.isIdenticalTo(OMO)) 770506049f29f4f202a8e45feb916cc0264440a7f6dEvan Cheng return false; 77134cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng } 77234cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng return true; 773506049f29f4f202a8e45feb916cc0264440a7f6dEvan Cheng} 774506049f29f4f202a8e45feb916cc0264440a7f6dEvan Cheng 77548d7c069c76882475c23de153bda9483cd3c9bb4Chris Lattner/// removeFromParent - This method unlinks 'this' from the containing basic 77648d7c069c76882475c23de153bda9483cd3c9bb4Chris Lattner/// block, and returns it, but does not delete it. 77748d7c069c76882475c23de153bda9483cd3c9bb4Chris LattnerMachineInstr *MachineInstr::removeFromParent() { 77848d7c069c76882475c23de153bda9483cd3c9bb4Chris Lattner assert(getParent() && "Not embedded in a basic block!"); 77948d7c069c76882475c23de153bda9483cd3c9bb4Chris Lattner getParent()->remove(this); 78048d7c069c76882475c23de153bda9483cd3c9bb4Chris Lattner return this; 78148d7c069c76882475c23de153bda9483cd3c9bb4Chris Lattner} 78248d7c069c76882475c23de153bda9483cd3c9bb4Chris Lattner 78348d7c069c76882475c23de153bda9483cd3c9bb4Chris Lattner 7848e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman/// eraseFromParent - This method unlinks 'this' from the containing basic 7858e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman/// block, and deletes it. 7868e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohmanvoid MachineInstr::eraseFromParent() { 7878e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman assert(getParent() && "Not embedded in a basic block!"); 7888e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman getParent()->erase(this); 7898e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman} 7908e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman 7918e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman 79221326fc2ad47ee7e73a8c0b03a4a0cc0b0a0c4e8Brian Gaeke/// OperandComplete - Return true if it's illegal to add a new operand 79321326fc2ad47ee7e73a8c0b03a4a0cc0b0a0c4e8Brian Gaeke/// 7942a90ba60175f93e7438165d8423100aa573c16c5Chris Lattnerbool MachineInstr::OperandsComplete() const { 795349c4952009525b27383e2120a6b3c998f39bd09Chris Lattner unsigned short NumOperands = TID->getNumOperands(); 7968f707e15fbd09ca948b86419bcb0c92470827ac9Chris Lattner if (!TID->isVariadic() && getNumOperands()-NumImplicitOps >= NumOperands) 7973497782f3843007de3be0c43e3ff206a01e2ccacVikram S. Adve return true; // Broken: we have all the operands of this instruction! 798413746e9833d97a8b463ef6a788aa326cf3829a2Chris Lattner return false; 79970bc4b5d1a3795a8f41be96723cfcbccac8e1671Vikram S. Adve} 80070bc4b5d1a3795a8f41be96723cfcbccac8e1671Vikram S. Adve 80119e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng/// getNumExplicitOperands - Returns the number of non-implicit operands. 80219e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng/// 80319e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Chengunsigned MachineInstr::getNumExplicitOperands() const { 804349c4952009525b27383e2120a6b3c998f39bd09Chris Lattner unsigned NumOperands = TID->getNumOperands(); 8058f707e15fbd09ca948b86419bcb0c92470827ac9Chris Lattner if (!TID->isVariadic()) 80619e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng return NumOperands; 80719e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng 8089407cd4ede3e2c090b958778d0fdbdac8b2dbec4Dan Gohman for (unsigned i = NumOperands, e = getNumOperands(); i != e; ++i) { 8099407cd4ede3e2c090b958778d0fdbdac8b2dbec4Dan Gohman const MachineOperand &MO = getOperand(i); 810d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (!MO.isReg() || !MO.isImplicit()) 81119e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng NumOperands++; 81219e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng } 81319e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng return NumOperands; 81419e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng} 81519e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng 816c36b7069b42bece963b7e6adf020353ce990ef76Evan Chengbool MachineInstr::isStackAligningInlineAsm() const { 817c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng if (isInlineAsm()) { 818c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng unsigned ExtraInfo = getOperand(InlineAsm::MIOp_ExtraInfo).getImm(); 819c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng if (ExtraInfo & InlineAsm::Extra_IsAlignStack) 820c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng return true; 821c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng } 822c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng return false; 823c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng} 8248ace2cd034be10c09be51daf08c3dda327f54262Chris Lattner 825faa510726f4b40aa4495e60e4d341c6467e3fb01Evan Cheng/// findRegisterUseOperandIdx() - Returns the MachineOperand that is a use of 826f9ca50e3dce88b2f9e2f2f0cac2d3ed78afda841Jim Grosbach/// the specific register or -1 if it is not found. It further tightens 82776d7e76c15c258ec4a71fd75a2a32bca3a5e5e27Evan Cheng/// the search criteria to a use that kills the register if isKill is true. 8286130f66eaae89f8878590796977678afa8448926Evan Chengint MachineInstr::findRegisterUseOperandIdx(unsigned Reg, bool isKill, 8296130f66eaae89f8878590796977678afa8448926Evan Cheng const TargetRegisterInfo *TRI) const { 830576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 831f277ee4be7edabb759a7f78138b693d72d0c263fEvan Cheng const MachineOperand &MO = getOperand(i); 832d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (!MO.isReg() || !MO.isUse()) 8336130f66eaae89f8878590796977678afa8448926Evan Cheng continue; 8346130f66eaae89f8878590796977678afa8448926Evan Cheng unsigned MOReg = MO.getReg(); 8356130f66eaae89f8878590796977678afa8448926Evan Cheng if (!MOReg) 8366130f66eaae89f8878590796977678afa8448926Evan Cheng continue; 8376130f66eaae89f8878590796977678afa8448926Evan Cheng if (MOReg == Reg || 8386130f66eaae89f8878590796977678afa8448926Evan Cheng (TRI && 8396130f66eaae89f8878590796977678afa8448926Evan Cheng TargetRegisterInfo::isPhysicalRegister(MOReg) && 8406130f66eaae89f8878590796977678afa8448926Evan Cheng TargetRegisterInfo::isPhysicalRegister(Reg) && 8416130f66eaae89f8878590796977678afa8448926Evan Cheng TRI->isSubRegister(MOReg, Reg))) 84276d7e76c15c258ec4a71fd75a2a32bca3a5e5e27Evan Cheng if (!isKill || MO.isKill()) 84332eb1f1ca4220d2f24916e587ad7e8574d7d82a1Evan Cheng return i; 844b371f457b0ea4a652a9f526ba4375c80ae542252Evan Cheng } 84532eb1f1ca4220d2f24916e587ad7e8574d7d82a1Evan Cheng return -1; 846b371f457b0ea4a652a9f526ba4375c80ae542252Evan Cheng} 8477ebc4d63db05ac214d36bc01b4d60adadaf923e5Jakob Stoklund Olesen 84818b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesen/// readsWritesVirtualRegister - Return a pair of bools (reads, writes) 84918b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesen/// indicating if this instruction reads or writes Reg. This also considers 85018b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesen/// partial defines. 85118b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesenstd::pair<bool,bool> 85218b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund OlesenMachineInstr::readsWritesVirtualRegister(unsigned Reg, 85318b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesen SmallVectorImpl<unsigned> *Ops) const { 85418b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesen bool PartDef = false; // Partial redefine. 85518b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesen bool FullDef = false; // Full define. 85618b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesen bool Use = false; 8577ebc4d63db05ac214d36bc01b4d60adadaf923e5Jakob Stoklund Olesen 8587ebc4d63db05ac214d36bc01b4d60adadaf923e5Jakob Stoklund Olesen for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 8597ebc4d63db05ac214d36bc01b4d60adadaf923e5Jakob Stoklund Olesen const MachineOperand &MO = getOperand(i); 8607ebc4d63db05ac214d36bc01b4d60adadaf923e5Jakob Stoklund Olesen if (!MO.isReg() || MO.getReg() != Reg) 8617ebc4d63db05ac214d36bc01b4d60adadaf923e5Jakob Stoklund Olesen continue; 86218b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesen if (Ops) 86318b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesen Ops->push_back(i); 8647ebc4d63db05ac214d36bc01b4d60adadaf923e5Jakob Stoklund Olesen if (MO.isUse()) 86518b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesen Use |= !MO.isUndef(); 86618b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesen else if (MO.getSubReg()) 8677ebc4d63db05ac214d36bc01b4d60adadaf923e5Jakob Stoklund Olesen PartDef = true; 8687ebc4d63db05ac214d36bc01b4d60adadaf923e5Jakob Stoklund Olesen else 8697ebc4d63db05ac214d36bc01b4d60adadaf923e5Jakob Stoklund Olesen FullDef = true; 8707ebc4d63db05ac214d36bc01b4d60adadaf923e5Jakob Stoklund Olesen } 87118b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesen // A partial redefine uses Reg unless there is also a full define. 87218b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesen return std::make_pair(Use || (PartDef && !FullDef), PartDef || FullDef); 8737ebc4d63db05ac214d36bc01b4d60adadaf923e5Jakob Stoklund Olesen} 8747ebc4d63db05ac214d36bc01b4d60adadaf923e5Jakob Stoklund Olesen 8756130f66eaae89f8878590796977678afa8448926Evan Cheng/// findRegisterDefOperandIdx() - Returns the operand index that is a def of 876703bfe69092e8da79fbef2fc5ca07b805ad9f753Dan Gohman/// the specified register or -1 if it is not found. If isDead is true, defs 877703bfe69092e8da79fbef2fc5ca07b805ad9f753Dan Gohman/// that are not dead are skipped. If TargetRegisterInfo is non-null, then it 878703bfe69092e8da79fbef2fc5ca07b805ad9f753Dan Gohman/// also checks if there is a def of a super-register. 8791015ba7018c87f48cc7bb45a564eb4a27241e76aEvan Chengint 8801015ba7018c87f48cc7bb45a564eb4a27241e76aEvan ChengMachineInstr::findRegisterDefOperandIdx(unsigned Reg, bool isDead, bool Overlap, 8811015ba7018c87f48cc7bb45a564eb4a27241e76aEvan Cheng const TargetRegisterInfo *TRI) const { 8821015ba7018c87f48cc7bb45a564eb4a27241e76aEvan Cheng bool isPhys = TargetRegisterInfo::isPhysicalRegister(Reg); 883b371f457b0ea4a652a9f526ba4375c80ae542252Evan Cheng for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 8846130f66eaae89f8878590796977678afa8448926Evan Cheng const MachineOperand &MO = getOperand(i); 885d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (!MO.isReg() || !MO.isDef()) 8866130f66eaae89f8878590796977678afa8448926Evan Cheng continue; 8876130f66eaae89f8878590796977678afa8448926Evan Cheng unsigned MOReg = MO.getReg(); 8881015ba7018c87f48cc7bb45a564eb4a27241e76aEvan Cheng bool Found = (MOReg == Reg); 8891015ba7018c87f48cc7bb45a564eb4a27241e76aEvan Cheng if (!Found && TRI && isPhys && 8901015ba7018c87f48cc7bb45a564eb4a27241e76aEvan Cheng TargetRegisterInfo::isPhysicalRegister(MOReg)) { 8911015ba7018c87f48cc7bb45a564eb4a27241e76aEvan Cheng if (Overlap) 8921015ba7018c87f48cc7bb45a564eb4a27241e76aEvan Cheng Found = TRI->regsOverlap(MOReg, Reg); 8931015ba7018c87f48cc7bb45a564eb4a27241e76aEvan Cheng else 8941015ba7018c87f48cc7bb45a564eb4a27241e76aEvan Cheng Found = TRI->isSubRegister(MOReg, Reg); 8951015ba7018c87f48cc7bb45a564eb4a27241e76aEvan Cheng } 8961015ba7018c87f48cc7bb45a564eb4a27241e76aEvan Cheng if (Found && (!isDead || MO.isDead())) 8971015ba7018c87f48cc7bb45a564eb4a27241e76aEvan Cheng return i; 898576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng } 8996130f66eaae89f8878590796977678afa8448926Evan Cheng return -1; 900576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng} 90119e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng 902f277ee4be7edabb759a7f78138b693d72d0c263fEvan Cheng/// findFirstPredOperandIdx() - Find the index of the first operand in the 903f277ee4be7edabb759a7f78138b693d72d0c263fEvan Cheng/// operand list that is used to represent the predicate. It returns -1 if 904f277ee4be7edabb759a7f78138b693d72d0c263fEvan Cheng/// none is found. 905f277ee4be7edabb759a7f78138b693d72d0c263fEvan Chengint MachineInstr::findFirstPredOperandIdx() const { 906749c6f6b5ed301c84aac562e414486549d7b98ebChris Lattner const TargetInstrDesc &TID = getDesc(); 907749c6f6b5ed301c84aac562e414486549d7b98ebChris Lattner if (TID.isPredicable()) { 90819e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng for (unsigned i = 0, e = getNumOperands(); i != e; ++i) 909749c6f6b5ed301c84aac562e414486549d7b98ebChris Lattner if (TID.OpInfo[i].isPredicate()) 910f277ee4be7edabb759a7f78138b693d72d0c263fEvan Cheng return i; 91119e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng } 91219e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng 913f277ee4be7edabb759a7f78138b693d72d0c263fEvan Cheng return -1; 91419e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng} 915576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng 916d9df5017040489303acb57bdd8697ef0f8bafc08Bob Wilson/// isRegTiedToUseOperand - Given the index of a register def operand, 917d9df5017040489303acb57bdd8697ef0f8bafc08Bob Wilson/// check if the register def is tied to a source operand, due to either 918d9df5017040489303acb57bdd8697ef0f8bafc08Bob Wilson/// two-address elimination or inline assembly constraints. Returns the 919d9df5017040489303acb57bdd8697ef0f8bafc08Bob Wilson/// first tied use operand index by reference is UseOpIdx is not null. 920ce9be2cf5dc84865f6b819bd3f9be16944426268Jakob Stoklund Olesenbool MachineInstr:: 921ce9be2cf5dc84865f6b819bd3f9be16944426268Jakob Stoklund OlesenisRegTiedToUseOperand(unsigned DefOpIdx, unsigned *UseOpIdx) const { 922518bb53485df640d7b7e3f6b0544099020c42aa7Chris Lattner if (isInlineAsm()) { 923c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng assert(DefOpIdx > InlineAsm::MIOp_FirstOperand); 924d9df5017040489303acb57bdd8697ef0f8bafc08Bob Wilson const MachineOperand &MO = getOperand(DefOpIdx); 925c30aa7b3de0ce8c37e9630e8e7a73cb83c808c62Chris Lattner if (!MO.isReg() || !MO.isDef() || MO.getReg() == 0) 926fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng return false; 927ef5d070bbe55d7165fc84778ca7757c3cfeea491Evan Cheng // Determine the actual operand index that corresponds to this index. 928fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng unsigned DefNo = 0; 929ef5d070bbe55d7165fc84778ca7757c3cfeea491Evan Cheng unsigned DefPart = 0; 930c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng for (unsigned i = InlineAsm::MIOp_FirstOperand, e = getNumOperands(); 931c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng i < e; ) { 932fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng const MachineOperand &FMO = getOperand(i); 93345d34fe35846eed7019bdc2f7814025302849e0cJakob Stoklund Olesen // After the normal asm operands there may be additional imp-def regs. 93445d34fe35846eed7019bdc2f7814025302849e0cJakob Stoklund Olesen if (!FMO.isImm()) 93545d34fe35846eed7019bdc2f7814025302849e0cJakob Stoklund Olesen return false; 936fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng // Skip over this def. 937ef5d070bbe55d7165fc84778ca7757c3cfeea491Evan Cheng unsigned NumOps = InlineAsm::getNumOperandRegisters(FMO.getImm()); 938ef5d070bbe55d7165fc84778ca7757c3cfeea491Evan Cheng unsigned PrevDef = i + 1; 939ef5d070bbe55d7165fc84778ca7757c3cfeea491Evan Cheng i = PrevDef + NumOps; 940ef5d070bbe55d7165fc84778ca7757c3cfeea491Evan Cheng if (i > DefOpIdx) { 941ef5d070bbe55d7165fc84778ca7757c3cfeea491Evan Cheng DefPart = DefOpIdx - PrevDef; 942fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng break; 943ef5d070bbe55d7165fc84778ca7757c3cfeea491Evan Cheng } 944fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng ++DefNo; 945fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng } 946c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng for (unsigned i = InlineAsm::MIOp_FirstOperand, e = getNumOperands(); 947c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng i != e; ++i) { 948fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng const MachineOperand &FMO = getOperand(i); 949fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng if (!FMO.isImm()) 950fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng continue; 951fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng if (i+1 >= e || !getOperand(i+1).isReg() || !getOperand(i+1).isUse()) 952fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng continue; 953fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng unsigned Idx; 954ef5d070bbe55d7165fc84778ca7757c3cfeea491Evan Cheng if (InlineAsm::isUseOperandTiedToDef(FMO.getImm(), Idx) && 955d9df5017040489303acb57bdd8697ef0f8bafc08Bob Wilson Idx == DefNo) { 956d9df5017040489303acb57bdd8697ef0f8bafc08Bob Wilson if (UseOpIdx) 957ef5d070bbe55d7165fc84778ca7757c3cfeea491Evan Cheng *UseOpIdx = (unsigned)i + 1 + DefPart; 958fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng return true; 959d9df5017040489303acb57bdd8697ef0f8bafc08Bob Wilson } 960fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng } 961ef5d070bbe55d7165fc84778ca7757c3cfeea491Evan Cheng return false; 962fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng } 963fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng 964d9df5017040489303acb57bdd8697ef0f8bafc08Bob Wilson assert(getOperand(DefOpIdx).isDef() && "DefOpIdx is not a def!"); 965749c6f6b5ed301c84aac562e414486549d7b98ebChris Lattner const TargetInstrDesc &TID = getDesc(); 966ef0732d25a9882c947984ae3f2afbef5463ba00fEvan Cheng for (unsigned i = 0, e = TID.getNumOperands(); i != e; ++i) { 967ef0732d25a9882c947984ae3f2afbef5463ba00fEvan Cheng const MachineOperand &MO = getOperand(i); 9682ce7f2068f13566f5a70ee779e3bb83a6cb8d942Dan Gohman if (MO.isReg() && MO.isUse() && 969d9df5017040489303acb57bdd8697ef0f8bafc08Bob Wilson TID.getOperandConstraint(i, TOI::TIED_TO) == (int)DefOpIdx) { 970d9df5017040489303acb57bdd8697ef0f8bafc08Bob Wilson if (UseOpIdx) 971d9df5017040489303acb57bdd8697ef0f8bafc08Bob Wilson *UseOpIdx = (unsigned)i; 972ef0732d25a9882c947984ae3f2afbef5463ba00fEvan Cheng return true; 973d9df5017040489303acb57bdd8697ef0f8bafc08Bob Wilson } 97432dfbeada7292167bb488f36a71a5a6a519ddaffEvan Cheng } 97532dfbeada7292167bb488f36a71a5a6a519ddaffEvan Cheng return false; 97632dfbeada7292167bb488f36a71a5a6a519ddaffEvan Cheng} 97732dfbeada7292167bb488f36a71a5a6a519ddaffEvan Cheng 978a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng/// isRegTiedToDefOperand - Return true if the operand of the specified index 979a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng/// is a register use and it is tied to an def operand. It also returns the def 980a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng/// operand index by reference. 981ce9be2cf5dc84865f6b819bd3f9be16944426268Jakob Stoklund Olesenbool MachineInstr:: 982ce9be2cf5dc84865f6b819bd3f9be16944426268Jakob Stoklund OlesenisRegTiedToDefOperand(unsigned UseOpIdx, unsigned *DefOpIdx) const { 983518bb53485df640d7b7e3f6b0544099020c42aa7Chris Lattner if (isInlineAsm()) { 984fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng const MachineOperand &MO = getOperand(UseOpIdx); 9850c8382ce9a96e36325b17d242fd1af16564d8a85Chris Lattner if (!MO.isReg() || !MO.isUse() || MO.getReg() == 0) 986fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng return false; 98757e599a46b7b1321f9af02d1cecb4fa6b34f8a52Jakob Stoklund Olesen 98857e599a46b7b1321f9af02d1cecb4fa6b34f8a52Jakob Stoklund Olesen // Find the flag operand corresponding to UseOpIdx 98957e599a46b7b1321f9af02d1cecb4fa6b34f8a52Jakob Stoklund Olesen unsigned FlagIdx, NumOps=0; 990c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng for (FlagIdx = InlineAsm::MIOp_FirstOperand; 991c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng FlagIdx < UseOpIdx; FlagIdx += NumOps+1) { 99257e599a46b7b1321f9af02d1cecb4fa6b34f8a52Jakob Stoklund Olesen const MachineOperand &UFMO = getOperand(FlagIdx); 99345d34fe35846eed7019bdc2f7814025302849e0cJakob Stoklund Olesen // After the normal asm operands there may be additional imp-def regs. 99445d34fe35846eed7019bdc2f7814025302849e0cJakob Stoklund Olesen if (!UFMO.isImm()) 99545d34fe35846eed7019bdc2f7814025302849e0cJakob Stoklund Olesen return false; 99657e599a46b7b1321f9af02d1cecb4fa6b34f8a52Jakob Stoklund Olesen NumOps = InlineAsm::getNumOperandRegisters(UFMO.getImm()); 99757e599a46b7b1321f9af02d1cecb4fa6b34f8a52Jakob Stoklund Olesen assert(NumOps < getNumOperands() && "Invalid inline asm flag"); 99857e599a46b7b1321f9af02d1cecb4fa6b34f8a52Jakob Stoklund Olesen if (UseOpIdx < FlagIdx+NumOps+1) 99957e599a46b7b1321f9af02d1cecb4fa6b34f8a52Jakob Stoklund Olesen break; 1000ef5d070bbe55d7165fc84778ca7757c3cfeea491Evan Cheng } 100157e599a46b7b1321f9af02d1cecb4fa6b34f8a52Jakob Stoklund Olesen if (FlagIdx >= UseOpIdx) 1002ef5d070bbe55d7165fc84778ca7757c3cfeea491Evan Cheng return false; 100357e599a46b7b1321f9af02d1cecb4fa6b34f8a52Jakob Stoklund Olesen const MachineOperand &UFMO = getOperand(FlagIdx); 1004fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng unsigned DefNo; 1005fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng if (InlineAsm::isUseOperandTiedToDef(UFMO.getImm(), DefNo)) { 1006fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng if (!DefOpIdx) 1007fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng return true; 1008fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng 1009c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng unsigned DefIdx = InlineAsm::MIOp_FirstOperand; 1010f1e309eb4862459a76445942ba4dafc433b6f317Dale Johannesen // Remember to adjust the index. First operand is asm string, second is 1011c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng // the HasSideEffects and AlignStack bits, then there is a flag for each. 1012fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng while (DefNo) { 1013fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng const MachineOperand &FMO = getOperand(DefIdx); 1014fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng assert(FMO.isImm()); 1015fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng // Skip over this def. 1016fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng DefIdx += InlineAsm::getNumOperandRegisters(FMO.getImm()) + 1; 1017fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng --DefNo; 1018fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng } 1019ef5d070bbe55d7165fc84778ca7757c3cfeea491Evan Cheng *DefOpIdx = DefIdx + UseOpIdx - FlagIdx; 1020fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng return true; 1021fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng } 1022fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng return false; 1023fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng } 1024fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng 1025a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng const TargetInstrDesc &TID = getDesc(); 1026a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng if (UseOpIdx >= TID.getNumOperands()) 1027a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng return false; 1028a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng const MachineOperand &MO = getOperand(UseOpIdx); 1029a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng if (!MO.isReg() || !MO.isUse()) 1030a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng return false; 1031a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng int DefIdx = TID.getOperandConstraint(UseOpIdx, TOI::TIED_TO); 1032a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng if (DefIdx == -1) 1033a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng return false; 1034a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng if (DefOpIdx) 1035a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng *DefOpIdx = (unsigned)DefIdx; 1036a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng return true; 1037a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng} 1038a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng 1039e6cd757e6800b9b94a6459ec148c0624c4f2e3c1Dan Gohman/// clearKillInfo - Clears kill flags on all operands. 1040e6cd757e6800b9b94a6459ec148c0624c4f2e3c1Dan Gohman/// 1041e6cd757e6800b9b94a6459ec148c0624c4f2e3c1Dan Gohmanvoid MachineInstr::clearKillInfo() { 1042e6cd757e6800b9b94a6459ec148c0624c4f2e3c1Dan Gohman for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 1043e6cd757e6800b9b94a6459ec148c0624c4f2e3c1Dan Gohman MachineOperand &MO = getOperand(i); 1044e6cd757e6800b9b94a6459ec148c0624c4f2e3c1Dan Gohman if (MO.isReg() && MO.isUse()) 1045e6cd757e6800b9b94a6459ec148c0624c4f2e3c1Dan Gohman MO.setIsKill(false); 1046e6cd757e6800b9b94a6459ec148c0624c4f2e3c1Dan Gohman } 1047e6cd757e6800b9b94a6459ec148c0624c4f2e3c1Dan Gohman} 1048e6cd757e6800b9b94a6459ec148c0624c4f2e3c1Dan Gohman 1049576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng/// copyKillDeadInfo - Copies kill / dead operand properties from MI. 1050576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng/// 1051576d123e130a8291669dd2384a3735cc4933fd00Evan Chengvoid MachineInstr::copyKillDeadInfo(const MachineInstr *MI) { 1052576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng for (unsigned i = 0, e = MI->getNumOperands(); i != e; ++i) { 1053576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng const MachineOperand &MO = MI->getOperand(i); 1054d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (!MO.isReg() || (!MO.isKill() && !MO.isDead())) 1055576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng continue; 1056576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng for (unsigned j = 0, ee = getNumOperands(); j != ee; ++j) { 1057576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng MachineOperand &MOp = getOperand(j); 1058576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng if (!MOp.isIdenticalTo(MO)) 1059576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng continue; 1060576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng if (MO.isKill()) 1061576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng MOp.setIsKill(); 1062576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng else 1063576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng MOp.setIsDead(); 1064576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng break; 1065576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng } 1066576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng } 1067576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng} 1068576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng 106919e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng/// copyPredicates - Copies predicate operand(s) from MI. 107019e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Chengvoid MachineInstr::copyPredicates(const MachineInstr *MI) { 1071749c6f6b5ed301c84aac562e414486549d7b98ebChris Lattner const TargetInstrDesc &TID = MI->getDesc(); 1072b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng if (!TID.isPredicable()) 1073b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng return; 1074b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng for (unsigned i = 0, e = MI->getNumOperands(); i != e; ++i) { 1075b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng if (TID.OpInfo[i].isPredicate()) { 1076b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng // Predicated operands must be last operands. 1077b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng addOperand(MI->getOperand(i)); 107819e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng } 107919e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng } 108019e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng} 108119e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng 10829edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesenvoid MachineInstr::substituteRegister(unsigned FromReg, 10839edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen unsigned ToReg, 10849edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen unsigned SubIdx, 10859edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen const TargetRegisterInfo &RegInfo) { 10869edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen if (TargetRegisterInfo::isPhysicalRegister(ToReg)) { 10879edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen if (SubIdx) 10889edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen ToReg = RegInfo.getSubReg(ToReg, SubIdx); 10899edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 10909edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen MachineOperand &MO = getOperand(i); 10919edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen if (!MO.isReg() || MO.getReg() != FromReg) 10929edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen continue; 10939edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen MO.substPhysReg(ToReg, RegInfo); 10949edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen } 10959edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen } else { 10969edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 10979edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen MachineOperand &MO = getOperand(i); 10989edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen if (!MO.isReg() || MO.getReg() != FromReg) 10999edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen continue; 11009edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen MO.substVirtReg(ToReg, SubIdx, RegInfo); 11019edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen } 11029edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen } 11039edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen} 11049edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen 11059f1c8317a4676945b4961ddb9827ef2412551620Evan Cheng/// isSafeToMove - Return true if it is safe to move this instruction. If 11069f1c8317a4676945b4961ddb9827ef2412551620Evan Cheng/// SawStore is set to true, it means that there is a store (or call) between 11079f1c8317a4676945b4961ddb9827ef2412551620Evan Cheng/// the instruction's location and its intended destination. 1108b3b930a011554fc7566dd4311af3862b01e5fd8fDan Gohmanbool MachineInstr::isSafeToMove(const TargetInstrInfo *TII, 1109ac1abde05b7e6956c01deb6557539bee8fea30f4Evan Cheng AliasAnalysis *AA, 1110ac1abde05b7e6956c01deb6557539bee8fea30f4Evan Cheng bool &SawStore) const { 1111b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng // Ignore stuff that we obviously can't move. 1112b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng if (TID->mayStore() || TID->isCall()) { 1113b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng SawStore = true; 1114b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng return false; 1115b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng } 111630a343aeedf777f9b8b6be9823da750afbf765b1Evan Cheng 111730a343aeedf777f9b8b6be9823da750afbf765b1Evan Cheng if (isLabel() || isDebugValue() || 1118c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng TID->isTerminator() || hasUnmodeledSideEffects()) 1119b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng return false; 1120b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng 1121b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng // See if this instruction does a load. If so, we have to guarantee that the 1122b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng // loaded value doesn't change between the load and the its intended 1123b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng // destination. The check for isInvariantLoad gives the targe the chance to 1124b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng // classify the load as always returning a constant, e.g. a constant pool 1125b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng // load. 1126a70dca156fa76d452f54829b5c5f962ddfd94ef2Dan Gohman if (TID->mayLoad() && !isInvariantLoad(AA)) 1127b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng // Otherwise, this is a real load. If there is a store between the load and 11287cc2c406d0c82bcf329048ced643ec77fcae60e6Evan Cheng // end of block, or if the load is volatile, we can't move it. 1129d790a5ceee7138d8a5352432ccf862a42e3f5819Dan Gohman return !SawStore && !hasVolatileMemoryRef(); 11303e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman 1131b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng return true; 1132b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng} 1133b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng 1134df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng/// isSafeToReMat - Return true if it's safe to rematerialize the specified 1135df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng/// instruction which defined the specified register instead of copying it. 1136b3b930a011554fc7566dd4311af3862b01e5fd8fDan Gohmanbool MachineInstr::isSafeToReMat(const TargetInstrInfo *TII, 1137ac1abde05b7e6956c01deb6557539bee8fea30f4Evan Cheng AliasAnalysis *AA, 1138ac1abde05b7e6956c01deb6557539bee8fea30f4Evan Cheng unsigned DstReg) const { 1139df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng bool SawStore = false; 1140a70dca156fa76d452f54829b5c5f962ddfd94ef2Dan Gohman if (!TII->isTriviallyReMaterializable(this, AA) || 1141ac1abde05b7e6956c01deb6557539bee8fea30f4Evan Cheng !isSafeToMove(TII, AA, SawStore)) 1142df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng return false; 1143df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 1144cbad42cfd1cc93a41ff26ea2e8895bfbc09f54f2Dan Gohman const MachineOperand &MO = getOperand(i); 1145d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (!MO.isReg()) 1146df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng continue; 1147df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng // FIXME: For now, do not remat any instruction with register operands. 1148df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng // Later on, we can loosen the restriction is the register operands have 1149df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng // not been modified between the def and use. Note, this is different from 11508763c1c54413c9cd0b56e2860edb5856151a69fcEvan Cheng // MachineSink because the code is no longer in two-address form (at least 1151df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng // partially). 1152df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng if (MO.isUse()) 1153df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng return false; 1154df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng else if (!MO.isDead() && MO.getReg() != DstReg) 1155df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng return false; 1156df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng } 1157df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng return true; 1158df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng} 1159df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng 11603e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman/// hasVolatileMemoryRef - Return true if this instruction may have a 11613e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman/// volatile memory reference, or if the information describing the 11623e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman/// memory reference is not available. Return false if it is known to 11633e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman/// have no volatile memory references. 11643e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohmanbool MachineInstr::hasVolatileMemoryRef() const { 11653e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman // An instruction known never to access memory won't have a volatile access. 11663e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman if (!TID->mayStore() && 11673e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman !TID->mayLoad() && 11683e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman !TID->isCall() && 1169c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng !hasUnmodeledSideEffects()) 11703e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman return false; 11713e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman 11723e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman // Otherwise, if the instruction has no memory reference information, 11733e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman // conservatively assume it wasn't preserved. 11743e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman if (memoperands_empty()) 11753e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman return true; 11763e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman 11773e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman // Check the memory reference information for volatile references. 1178c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman for (mmo_iterator I = memoperands_begin(), E = memoperands_end(); I != E; ++I) 1179c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman if ((*I)->isVolatile()) 11803e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman return true; 11813e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman 11823e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman return false; 11833e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman} 11843e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman 1185e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman/// isInvariantLoad - Return true if this instruction is loading from a 1186e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman/// location whose value is invariant across the function. For example, 1187f451cb870efcf9e0302d25ed05f4cac6bb494e42Dan Gohman/// loading a value from the constant pool or from the argument area 1188e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman/// of a function if it does not change. This should only return true of 1189e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman/// *all* loads the instruction does are invariant (if it does multiple loads). 1190e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohmanbool MachineInstr::isInvariantLoad(AliasAnalysis *AA) const { 1191e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman // If the instruction doesn't load at all, it isn't an invariant load. 1192e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman if (!TID->mayLoad()) 1193e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman return false; 1194e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman 1195e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman // If the instruction has lost its memoperands, conservatively assume that 1196e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman // it may not be an invariant load. 1197e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman if (memoperands_empty()) 1198e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman return false; 1199e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman 1200e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman const MachineFrameInfo *MFI = getParent()->getParent()->getFrameInfo(); 1201e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman 1202e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman for (mmo_iterator I = memoperands_begin(), 1203e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman E = memoperands_end(); I != E; ++I) { 1204e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman if ((*I)->isVolatile()) return false; 1205e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman if ((*I)->isStore()) return false; 1206e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman 1207e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman if (const Value *V = (*I)->getValue()) { 1208e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman // A load from a constant PseudoSourceValue is invariant. 1209e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman if (const PseudoSourceValue *PSV = dyn_cast<PseudoSourceValue>(V)) 1210e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman if (PSV->isConstant(MFI)) 1211e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman continue; 1212e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman // If we have an AliasAnalysis, ask it whether the memory is constant. 1213f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman if (AA && AA->pointsToConstantMemory( 1214f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman AliasAnalysis::Location(V, (*I)->getSize(), 1215f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman (*I)->getTBAAInfo()))) 1216e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman continue; 1217e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman } 1218e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman 1219e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman // Otherwise assume conservatively. 1220e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman return false; 1221e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman } 1222e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman 1223e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman // Everything checks out. 1224e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman return true; 1225e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman} 1226e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman 1227229694f0ee630ceabe96a8bd48952f6740f928b2Evan Cheng/// isConstantValuePHI - If the specified instruction is a PHI that always 1228229694f0ee630ceabe96a8bd48952f6740f928b2Evan Cheng/// merges together the same virtual register, return the register, otherwise 1229229694f0ee630ceabe96a8bd48952f6740f928b2Evan Cheng/// return 0. 1230229694f0ee630ceabe96a8bd48952f6740f928b2Evan Chengunsigned MachineInstr::isConstantValuePHI() const { 1231518bb53485df640d7b7e3f6b0544099020c42aa7Chris Lattner if (!isPHI()) 1232229694f0ee630ceabe96a8bd48952f6740f928b2Evan Cheng return 0; 1233d8f079c25e8bcaf4d10bfa9c3f6a38cd5ac84329Evan Cheng assert(getNumOperands() >= 3 && 1234d8f079c25e8bcaf4d10bfa9c3f6a38cd5ac84329Evan Cheng "It's illegal to have a PHI without source operands"); 1235229694f0ee630ceabe96a8bd48952f6740f928b2Evan Cheng 1236229694f0ee630ceabe96a8bd48952f6740f928b2Evan Cheng unsigned Reg = getOperand(1).getReg(); 1237229694f0ee630ceabe96a8bd48952f6740f928b2Evan Cheng for (unsigned i = 3, e = getNumOperands(); i < e; i += 2) 1238229694f0ee630ceabe96a8bd48952f6740f928b2Evan Cheng if (getOperand(i).getReg() != Reg) 1239229694f0ee630ceabe96a8bd48952f6740f928b2Evan Cheng return 0; 1240229694f0ee630ceabe96a8bd48952f6740f928b2Evan Cheng return Reg; 1241229694f0ee630ceabe96a8bd48952f6740f928b2Evan Cheng} 1242229694f0ee630ceabe96a8bd48952f6740f928b2Evan Cheng 1243c36b7069b42bece963b7e6adf020353ce990ef76Evan Chengbool MachineInstr::hasUnmodeledSideEffects() const { 1244c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng if (getDesc().hasUnmodeledSideEffects()) 1245c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng return true; 1246c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng if (isInlineAsm()) { 1247c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng unsigned ExtraInfo = getOperand(InlineAsm::MIOp_ExtraInfo).getImm(); 1248c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng if (ExtraInfo & InlineAsm::Extra_HasSideEffects) 1249c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng return true; 1250c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng } 1251c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng 1252c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng return false; 1253c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng} 1254c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng 1255a57fabe815ccf016eead526eb3ef475f116ab155Evan Cheng/// allDefsAreDead - Return true if all the defs of this instruction are dead. 1256a57fabe815ccf016eead526eb3ef475f116ab155Evan Cheng/// 1257a57fabe815ccf016eead526eb3ef475f116ab155Evan Chengbool MachineInstr::allDefsAreDead() const { 1258a57fabe815ccf016eead526eb3ef475f116ab155Evan Cheng for (unsigned i = 0, e = getNumOperands(); i < e; ++i) { 1259a57fabe815ccf016eead526eb3ef475f116ab155Evan Cheng const MachineOperand &MO = getOperand(i); 1260a57fabe815ccf016eead526eb3ef475f116ab155Evan Cheng if (!MO.isReg() || MO.isUse()) 1261a57fabe815ccf016eead526eb3ef475f116ab155Evan Cheng continue; 1262a57fabe815ccf016eead526eb3ef475f116ab155Evan Cheng if (!MO.isDead()) 1263a57fabe815ccf016eead526eb3ef475f116ab155Evan Cheng return false; 1264a57fabe815ccf016eead526eb3ef475f116ab155Evan Cheng } 1265a57fabe815ccf016eead526eb3ef475f116ab155Evan Cheng return true; 1266a57fabe815ccf016eead526eb3ef475f116ab155Evan Cheng} 1267a57fabe815ccf016eead526eb3ef475f116ab155Evan Cheng 1268c8f46c45a0bdefdb91593cabc87547cc45f9d89dEvan Cheng/// copyImplicitOps - Copy implicit register operands from specified 1269c8f46c45a0bdefdb91593cabc87547cc45f9d89dEvan Cheng/// instruction to this instruction. 1270c8f46c45a0bdefdb91593cabc87547cc45f9d89dEvan Chengvoid MachineInstr::copyImplicitOps(const MachineInstr *MI) { 1271c8f46c45a0bdefdb91593cabc87547cc45f9d89dEvan Cheng for (unsigned i = MI->getDesc().getNumOperands(), e = MI->getNumOperands(); 1272c8f46c45a0bdefdb91593cabc87547cc45f9d89dEvan Cheng i != e; ++i) { 1273c8f46c45a0bdefdb91593cabc87547cc45f9d89dEvan Cheng const MachineOperand &MO = MI->getOperand(i); 1274c8f46c45a0bdefdb91593cabc87547cc45f9d89dEvan Cheng if (MO.isReg() && MO.isImplicit()) 1275c8f46c45a0bdefdb91593cabc87547cc45f9d89dEvan Cheng addOperand(MO); 1276c8f46c45a0bdefdb91593cabc87547cc45f9d89dEvan Cheng } 1277c8f46c45a0bdefdb91593cabc87547cc45f9d89dEvan Cheng} 1278c8f46c45a0bdefdb91593cabc87547cc45f9d89dEvan Cheng 127921326fc2ad47ee7e73a8c0b03a4a0cc0b0a0c4e8Brian Gaekevoid MachineInstr::dump() const { 12803b325334102144ec39910563eabebde434504564David Greene dbgs() << " " << *this; 12815ca6bd14a00ba5310ce1a632d3a0cc8f8af31433Mon P Wang} 12825ca6bd14a00ba5310ce1a632d3a0cc8f8af31433Mon P Wang 1283da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patelstatic void printDebugLoc(DebugLoc DL, const MachineFunction *MF, 1284da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel raw_ostream &CommentOS) { 1285da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel const LLVMContext &Ctx = MF->getFunction()->getContext(); 1286da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel if (!DL.isUnknown()) { // Print source line info. 1287da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel DIScope Scope(DL.getScope(Ctx)); 1288da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel // Omit the directory, because it's likely to be long and uninteresting. 1289da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel if (Scope.Verify()) 1290da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel CommentOS << Scope.getFilename(); 1291da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel else 1292da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel CommentOS << "<unknown>"; 1293da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel CommentOS << ':' << DL.getLine(); 1294da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel if (DL.getCol() != 0) 1295da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel CommentOS << ':' << DL.getCol(); 1296da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel DebugLoc InlinedAtDL = DebugLoc::getFromDILocation(DL.getInlinedAt(Ctx)); 1297da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel if (!InlinedAtDL.isUnknown()) { 1298da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel CommentOS << " @[ "; 1299da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel printDebugLoc(InlinedAtDL, MF, CommentOS); 1300da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel CommentOS << " ]"; 1301da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel } 1302da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel } 1303da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel} 1304da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel 13055ca6bd14a00ba5310ce1a632d3a0cc8f8af31433Mon P Wangvoid MachineInstr::print(raw_ostream &OS, const TargetMachine *TM) const { 130680f6c5898113806130975fd56d24929b06bf54f8Dan Gohman // We can be a bit tidier if we know the TargetMachine and/or MachineFunction. 130780f6c5898113806130975fd56d24929b06bf54f8Dan Gohman const MachineFunction *MF = 0; 1308a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen const MachineRegisterInfo *MRI = 0; 130980f6c5898113806130975fd56d24929b06bf54f8Dan Gohman if (const MachineBasicBlock *MBB = getParent()) { 131080f6c5898113806130975fd56d24929b06bf54f8Dan Gohman MF = MBB->getParent(); 131180f6c5898113806130975fd56d24929b06bf54f8Dan Gohman if (!TM && MF) 131280f6c5898113806130975fd56d24929b06bf54f8Dan Gohman TM = &MF->getTarget(); 1313a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen if (MF) 1314a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen MRI = &MF->getRegInfo(); 131580f6c5898113806130975fd56d24929b06bf54f8Dan Gohman } 13160ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman 1317a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen // Save a list of virtual registers. 1318a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen SmallVector<unsigned, 8> VirtRegs; 1319a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen 13200ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman // Print explicitly defined operands on the left of an assignment syntax. 132180f6c5898113806130975fd56d24929b06bf54f8Dan Gohman unsigned StartOp = 0, e = getNumOperands(); 13220ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman for (; StartOp < e && getOperand(StartOp).isReg() && 13230ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman getOperand(StartOp).isDef() && 13240ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman !getOperand(StartOp).isImplicit(); 13250ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman ++StartOp) { 13260ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman if (StartOp != 0) OS << ", "; 13270ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman getOperand(StartOp).print(OS, TM); 1328a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen unsigned Reg = getOperand(StartOp).getReg(); 1329c9df025e33ac435adb3b3318d237c36ca7cec659Jakob Stoklund Olesen if (TargetRegisterInfo::isVirtualRegister(Reg)) 1330a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen VirtRegs.push_back(Reg); 13316a592271fb2946a0704b06fd66199987cdd40b3cChris Lattner } 1332b140762a45d21aaed054f15adaff0fc2274d939dTanya Lattner 13330ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman if (StartOp != 0) 13340ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman OS << " = "; 13350ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman 13360ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman // Print the opcode name. 1337749c6f6b5ed301c84aac562e414486549d7b98ebChris Lattner OS << getDesc().getName(); 1338edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 13390ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman // Print the rest of the operands. 134080f6c5898113806130975fd56d24929b06bf54f8Dan Gohman bool OmittedAnyCallClobbers = false; 134180f6c5898113806130975fd56d24929b06bf54f8Dan Gohman bool FirstOp = true; 1342c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng 1343c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng if (isInlineAsm()) { 1344c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng // Print asm string. 1345c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng OS << " "; 1346c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng getOperand(InlineAsm::MIOp_AsmString).print(OS, TM); 1347c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng 1348c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng // Print HasSideEffects, IsAlignStack 1349c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng unsigned ExtraInfo = getOperand(InlineAsm::MIOp_ExtraInfo).getImm(); 1350c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng if (ExtraInfo & InlineAsm::Extra_HasSideEffects) 1351c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng OS << " [sideeffect]"; 1352c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng if (ExtraInfo & InlineAsm::Extra_IsAlignStack) 1353c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng OS << " [alignstack]"; 1354c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng 1355c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng StartOp = InlineAsm::MIOp_FirstOperand; 1356c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng FirstOp = false; 1357c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng } 1358c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng 1359c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng 13606a592271fb2946a0704b06fd66199987cdd40b3cChris Lattner for (unsigned i = StartOp, e = getNumOperands(); i != e; ++i) { 136180f6c5898113806130975fd56d24929b06bf54f8Dan Gohman const MachineOperand &MO = getOperand(i); 136280f6c5898113806130975fd56d24929b06bf54f8Dan Gohman 1363c9df025e33ac435adb3b3318d237c36ca7cec659Jakob Stoklund Olesen if (MO.isReg() && TargetRegisterInfo::isVirtualRegister(MO.getReg())) 1364a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen VirtRegs.push_back(MO.getReg()); 1365a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen 136680f6c5898113806130975fd56d24929b06bf54f8Dan Gohman // Omit call-clobbered registers which aren't used anywhere. This makes 136780f6c5898113806130975fd56d24929b06bf54f8Dan Gohman // call instructions much less noisy on targets where calls clobber lots 136880f6c5898113806130975fd56d24929b06bf54f8Dan Gohman // of registers. Don't rely on MO.isDead() because we may be called before 136980f6c5898113806130975fd56d24929b06bf54f8Dan Gohman // LiveVariables is run, or we may be looking at a non-allocatable reg. 137080f6c5898113806130975fd56d24929b06bf54f8Dan Gohman if (MF && getDesc().isCall() && 137180f6c5898113806130975fd56d24929b06bf54f8Dan Gohman MO.isReg() && MO.isImplicit() && MO.isDef()) { 137280f6c5898113806130975fd56d24929b06bf54f8Dan Gohman unsigned Reg = MO.getReg(); 1373c9df025e33ac435adb3b3318d237c36ca7cec659Jakob Stoklund Olesen if (TargetRegisterInfo::isPhysicalRegister(Reg)) { 137480f6c5898113806130975fd56d24929b06bf54f8Dan Gohman const MachineRegisterInfo &MRI = MF->getRegInfo(); 137580f6c5898113806130975fd56d24929b06bf54f8Dan Gohman if (MRI.use_empty(Reg) && !MRI.isLiveOut(Reg)) { 137680f6c5898113806130975fd56d24929b06bf54f8Dan Gohman bool HasAliasLive = false; 137780f6c5898113806130975fd56d24929b06bf54f8Dan Gohman for (const unsigned *Alias = TM->getRegisterInfo()->getAliasSet(Reg); 137880f6c5898113806130975fd56d24929b06bf54f8Dan Gohman unsigned AliasReg = *Alias; ++Alias) 137980f6c5898113806130975fd56d24929b06bf54f8Dan Gohman if (!MRI.use_empty(AliasReg) || MRI.isLiveOut(AliasReg)) { 138080f6c5898113806130975fd56d24929b06bf54f8Dan Gohman HasAliasLive = true; 138180f6c5898113806130975fd56d24929b06bf54f8Dan Gohman break; 138280f6c5898113806130975fd56d24929b06bf54f8Dan Gohman } 138380f6c5898113806130975fd56d24929b06bf54f8Dan Gohman if (!HasAliasLive) { 138480f6c5898113806130975fd56d24929b06bf54f8Dan Gohman OmittedAnyCallClobbers = true; 138580f6c5898113806130975fd56d24929b06bf54f8Dan Gohman continue; 138680f6c5898113806130975fd56d24929b06bf54f8Dan Gohman } 138780f6c5898113806130975fd56d24929b06bf54f8Dan Gohman } 138880f6c5898113806130975fd56d24929b06bf54f8Dan Gohman } 138980f6c5898113806130975fd56d24929b06bf54f8Dan Gohman } 139080f6c5898113806130975fd56d24929b06bf54f8Dan Gohman 139180f6c5898113806130975fd56d24929b06bf54f8Dan Gohman if (FirstOp) FirstOp = false; else OS << ","; 13926a592271fb2946a0704b06fd66199987cdd40b3cChris Lattner OS << " "; 1393b1bb4afbc7d801f9875be135c428b6f05511db5dJakob Stoklund Olesen if (i < getDesc().NumOperands) { 1394b1bb4afbc7d801f9875be135c428b6f05511db5dJakob Stoklund Olesen const TargetOperandInfo &TOI = getDesc().OpInfo[i]; 1395b1bb4afbc7d801f9875be135c428b6f05511db5dJakob Stoklund Olesen if (TOI.isPredicate()) 1396b1bb4afbc7d801f9875be135c428b6f05511db5dJakob Stoklund Olesen OS << "pred:"; 1397b1bb4afbc7d801f9875be135c428b6f05511db5dJakob Stoklund Olesen if (TOI.isOptionalDef()) 1398b1bb4afbc7d801f9875be135c428b6f05511db5dJakob Stoklund Olesen OS << "opt:"; 1399b1bb4afbc7d801f9875be135c428b6f05511db5dJakob Stoklund Olesen } 140059b3655564bb6717b296ca9e71f13bf7db45b590Evan Cheng if (isDebugValue() && MO.isMetadata()) { 140159b3655564bb6717b296ca9e71f13bf7db45b590Evan Cheng // Pretty print DBG_VALUE instructions. 140259b3655564bb6717b296ca9e71f13bf7db45b590Evan Cheng const MDNode *MD = MO.getMetadata(); 140359b3655564bb6717b296ca9e71f13bf7db45b590Evan Cheng if (const MDString *MDS = dyn_cast<MDString>(MD->getOperand(2))) 140459b3655564bb6717b296ca9e71f13bf7db45b590Evan Cheng OS << "!\"" << MDS->getString() << '\"'; 140559b3655564bb6717b296ca9e71f13bf7db45b590Evan Cheng else 140659b3655564bb6717b296ca9e71f13bf7db45b590Evan Cheng MO.print(OS, TM); 1407b1e11455d1cf4df081a9593660d194c1a53b4334Jakob Stoklund Olesen } else if (TM && (isInsertSubreg() || isRegSequence()) && MO.isImm()) { 1408b1e11455d1cf4df081a9593660d194c1a53b4334Jakob Stoklund Olesen OS << TM->getRegisterInfo()->getSubRegIndexName(MO.getImm()); 140959b3655564bb6717b296ca9e71f13bf7db45b590Evan Cheng } else 141059b3655564bb6717b296ca9e71f13bf7db45b590Evan Cheng MO.print(OS, TM); 141180f6c5898113806130975fd56d24929b06bf54f8Dan Gohman } 141280f6c5898113806130975fd56d24929b06bf54f8Dan Gohman 141380f6c5898113806130975fd56d24929b06bf54f8Dan Gohman // Briefly indicate whether any call clobbers were omitted. 141480f6c5898113806130975fd56d24929b06bf54f8Dan Gohman if (OmittedAnyCallClobbers) { 1415164558e59c2a321bf670e31a7bdde0d38d79bb67Bill Wendling if (!FirstOp) OS << ","; 141680f6c5898113806130975fd56d24929b06bf54f8Dan Gohman OS << " ..."; 14171049164aa6b06d91d9b3b557a9a213eaf3f6319aChris Lattner } 1418edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 14190ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman bool HaveSemi = false; 14208e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman if (!memoperands_empty()) { 14210ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman if (!HaveSemi) OS << ";"; HaveSemi = true; 14220ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman 14230ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman OS << " mem:"; 1424c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman for (mmo_iterator i = memoperands_begin(), e = memoperands_end(); 1425c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman i != e; ++i) { 1426c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman OS << **i; 1427ee56c42168f6c4271593f6018c4409b6a5910302Oscar Fuentes if (llvm::next(i) != e) 1428cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman OS << " "; 142969de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman } 143069de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman } 143169de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman 1432a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen // Print the regclass of any virtual registers encountered. 1433a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen if (MRI && !VirtRegs.empty()) { 1434a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen if (!HaveSemi) OS << ";"; HaveSemi = true; 1435a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen for (unsigned i = 0; i != VirtRegs.size(); ++i) { 1436a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen const TargetRegisterClass *RC = MRI->getRegClass(VirtRegs[i]); 14374314268128be6d54c9a7f0709680e5a5b40f3ab3Jakob Stoklund Olesen OS << " " << RC->getName() << ':' << PrintReg(VirtRegs[i]); 1438a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen for (unsigned j = i+1; j != VirtRegs.size();) { 1439a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen if (MRI->getRegClass(VirtRegs[j]) != RC) { 1440a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen ++j; 1441a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen continue; 1442a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen } 1443a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen if (VirtRegs[i] != VirtRegs[j]) 14444314268128be6d54c9a7f0709680e5a5b40f3ab3Jakob Stoklund Olesen OS << "," << PrintReg(VirtRegs[j]); 1445a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen VirtRegs.erase(VirtRegs.begin()+j); 1446a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen } 1447a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen } 1448a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen } 1449a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen 145080f6c5898113806130975fd56d24929b06bf54f8Dan Gohman if (!debugLoc.isUnknown() && MF) { 1451ad2cf9dd63d15a8bcd7d34a379a1e983fd8c66f7Bill Wendling if (!HaveSemi) OS << ";"; 145275ae593a2750f9f7995980c3a03c0d972985e394Dan Gohman OS << " dbg:"; 1453da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel printDebugLoc(debugLoc, MF, OS); 1454b5ef27375731ece13a8ae0102b3f3233351036afBill Wendling } 1455b5ef27375731ece13a8ae0102b3f3233351036afBill Wendling 14561049164aa6b06d91d9b3b557a9a213eaf3f6319aChris Lattner OS << "\n"; 14571049164aa6b06d91d9b3b557a9a213eaf3f6319aChris Lattner} 14581049164aa6b06d91d9b3b557a9a213eaf3f6319aChris Lattner 1459b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Andersonbool MachineInstr::addRegisterKilled(unsigned IncomingReg, 14606f0d024a534af18d9e60b3ea757376cd8a3a980eDan Gohman const TargetRegisterInfo *RegInfo, 1461b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson bool AddIfNotFound) { 14629b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng bool isPhysReg = TargetRegisterInfo::isPhysicalRegister(IncomingReg); 14632ebc11ac6d19ec806da97bd4f2d49a27932d09fbDan Gohman bool hasAliases = isPhysReg && RegInfo->getAliasSet(IncomingReg); 14643f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman bool Found = false; 14659b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng SmallVector<unsigned,4> DeadOps; 14664a23d72ec21d1bdfda69fd16c9fc10cec39f1fedBill Wendling for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 14674a23d72ec21d1bdfda69fd16c9fc10cec39f1fedBill Wendling MachineOperand &MO = getOperand(i); 1468efb8e3e113cbf359d6a838c3b37fedc8305d19bbJakob Stoklund Olesen if (!MO.isReg() || !MO.isUse() || MO.isUndef()) 14699b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng continue; 14709b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng unsigned Reg = MO.getReg(); 14719b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng if (!Reg) 14729b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng continue; 14734a23d72ec21d1bdfda69fd16c9fc10cec39f1fedBill Wendling 14749b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng if (Reg == IncomingReg) { 14753f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman if (!Found) { 14763f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman if (MO.isKill()) 14773f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman // The register is already marked kill. 14783f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman return true; 1479ece48185168ab130b1777feb86d9e3fe80eb87d2Jakob Stoklund Olesen if (isPhysReg && isRegTiedToDefOperand(i)) 1480ece48185168ab130b1777feb86d9e3fe80eb87d2Jakob Stoklund Olesen // Two-address uses of physregs must not be marked kill. 1481ece48185168ab130b1777feb86d9e3fe80eb87d2Jakob Stoklund Olesen return true; 14823f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman MO.setIsKill(); 14833f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman Found = true; 14843f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman } 14853f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman } else if (hasAliases && MO.isKill() && 14863f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman TargetRegisterInfo::isPhysicalRegister(Reg)) { 14879b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng // A super-register kill already exists. 14889b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng if (RegInfo->isSuperRegister(IncomingReg, Reg)) 14892ebc11ac6d19ec806da97bd4f2d49a27932d09fbDan Gohman return true; 14902ebc11ac6d19ec806da97bd4f2d49a27932d09fbDan Gohman if (RegInfo->isSubRegister(IncomingReg, Reg)) 14919b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng DeadOps.push_back(i); 1492b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson } 1493b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson } 1494b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson 14959b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng // Trim unneeded kill operands. 14969b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng while (!DeadOps.empty()) { 14979b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng unsigned OpIdx = DeadOps.back(); 14989b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng if (getOperand(OpIdx).isImplicit()) 14999b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng RemoveOperand(OpIdx); 15009b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng else 15019b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng getOperand(OpIdx).setIsKill(false); 15029b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng DeadOps.pop_back(); 15039b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng } 15049b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng 15054a23d72ec21d1bdfda69fd16c9fc10cec39f1fedBill Wendling // If not found, this means an alias of one of the operands is killed. Add a 1506b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson // new implicit operand if required. 15073f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman if (!Found && AddIfNotFound) { 15084a23d72ec21d1bdfda69fd16c9fc10cec39f1fedBill Wendling addOperand(MachineOperand::CreateReg(IncomingReg, 15094a23d72ec21d1bdfda69fd16c9fc10cec39f1fedBill Wendling false /*IsDef*/, 15104a23d72ec21d1bdfda69fd16c9fc10cec39f1fedBill Wendling true /*IsImp*/, 15114a23d72ec21d1bdfda69fd16c9fc10cec39f1fedBill Wendling true /*IsKill*/)); 1512b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson return true; 1513b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson } 15143f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman return Found; 1515b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson} 1516b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson 1517b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Andersonbool MachineInstr::addRegisterDead(unsigned IncomingReg, 15186f0d024a534af18d9e60b3ea757376cd8a3a980eDan Gohman const TargetRegisterInfo *RegInfo, 1519b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson bool AddIfNotFound) { 15209b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng bool isPhysReg = TargetRegisterInfo::isPhysicalRegister(IncomingReg); 152101b2e236b571e7c22ee8493b7ea19eda9830d75cEvan Cheng bool hasAliases = isPhysReg && RegInfo->getAliasSet(IncomingReg); 15223f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman bool Found = false; 15239b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng SmallVector<unsigned,4> DeadOps; 1524b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 1525b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson MachineOperand &MO = getOperand(i); 1526d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (!MO.isReg() || !MO.isDef()) 15279b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng continue; 15289b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng unsigned Reg = MO.getReg(); 15293f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman if (!Reg) 15303f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman continue; 15313f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman 15329b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng if (Reg == IncomingReg) { 15333f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman if (!Found) { 15343f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman if (MO.isDead()) 15353f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman // The register is already marked dead. 15363f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman return true; 15373f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman MO.setIsDead(); 15383f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman Found = true; 15393f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman } 15403f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman } else if (hasAliases && MO.isDead() && 15413f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman TargetRegisterInfo::isPhysicalRegister(Reg)) { 15429b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng // There exists a super-register that's marked dead. 15439b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng if (RegInfo->isSuperRegister(IncomingReg, Reg)) 15442ebc11ac6d19ec806da97bd4f2d49a27932d09fbDan Gohman return true; 154522ae99908258dd5631fde7128a94c418ed08eae5Owen Anderson if (RegInfo->getSubRegisters(IncomingReg) && 154622ae99908258dd5631fde7128a94c418ed08eae5Owen Anderson RegInfo->getSuperRegisters(Reg) && 154722ae99908258dd5631fde7128a94c418ed08eae5Owen Anderson RegInfo->isSubRegister(IncomingReg, Reg)) 15489b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng DeadOps.push_back(i); 1549b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson } 1550b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson } 1551b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson 15529b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng // Trim unneeded dead operands. 15539b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng while (!DeadOps.empty()) { 15549b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng unsigned OpIdx = DeadOps.back(); 15559b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng if (getOperand(OpIdx).isImplicit()) 15569b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng RemoveOperand(OpIdx); 15579b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng else 15589b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng getOperand(OpIdx).setIsDead(false); 15599b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng DeadOps.pop_back(); 15609b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng } 15619b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng 15623f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman // If not found, this means an alias of one of the operands is dead. Add a 15633f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman // new implicit operand if required. 156431530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner if (Found || !AddIfNotFound) 156531530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner return Found; 156631530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner 156731530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner addOperand(MachineOperand::CreateReg(IncomingReg, 156831530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner true /*IsDef*/, 156931530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner true /*IsImp*/, 157031530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner false /*IsKill*/, 157131530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner true /*IsDead*/)); 157231530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner return true; 1573b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson} 15748efadf94b568c08de3ff8ce35fd904a935387406Jakob Stoklund Olesen 15758efadf94b568c08de3ff8ce35fd904a935387406Jakob Stoklund Olesenvoid MachineInstr::addRegisterDefined(unsigned IncomingReg, 15768efadf94b568c08de3ff8ce35fd904a935387406Jakob Stoklund Olesen const TargetRegisterInfo *RegInfo) { 157763e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen if (TargetRegisterInfo::isPhysicalRegister(IncomingReg)) { 157863e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen MachineOperand *MO = findRegisterDefOperand(IncomingReg, false, RegInfo); 157963e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen if (MO) 158063e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen return; 158163e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen } else { 158263e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 158363e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen const MachineOperand &MO = getOperand(i); 158463e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen if (MO.isReg() && MO.getReg() == IncomingReg && MO.isDef() && 158563e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen MO.getSubReg() == 0) 158663e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen return; 158763e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen } 158863e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen } 158963e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen addOperand(MachineOperand::CreateReg(IncomingReg, 159063e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen true /*IsDef*/, 159163e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen true /*IsImp*/)); 15928efadf94b568c08de3ff8ce35fd904a935387406Jakob Stoklund Olesen} 159367eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Cheng 1594db4971259ce94cea26e555e9ade82672a3581f5cDan Gohmanvoid MachineInstr::setPhysRegsDeadExcept(const SmallVectorImpl<unsigned> &UsedRegs, 1595db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman const TargetRegisterInfo &TRI) { 1596db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 1597db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman MachineOperand &MO = getOperand(i); 1598db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman if (!MO.isReg() || !MO.isDef()) continue; 1599db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman unsigned Reg = MO.getReg(); 1600db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman if (Reg == 0) continue; 1601db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman bool Dead = true; 1602db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman for (SmallVectorImpl<unsigned>::const_iterator I = UsedRegs.begin(), 1603db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman E = UsedRegs.end(); I != E; ++I) 1604db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman if (TRI.regsOverlap(*I, Reg)) { 1605db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman Dead = false; 1606db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman break; 1607db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman } 1608db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman // If there are no uses, including partial uses, the def is dead. 1609db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman if (Dead) MO.setIsDead(); 1610db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman } 1611db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman} 1612db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman 161367eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Chengunsigned 161467eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan ChengMachineInstrExpressionTrait::getHashValue(const MachineInstr* const &MI) { 161567eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Cheng unsigned Hash = MI->getOpcode() * 37; 161667eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Cheng for (unsigned i = 0, e = MI->getNumOperands(); i != e; ++i) { 161767eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Cheng const MachineOperand &MO = MI->getOperand(i); 161867eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Cheng uint64_t Key = (uint64_t)MO.getType() << 32; 161967eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Cheng switch (MO.getType()) { 162072aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner default: break; 162172aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner case MachineOperand::MO_Register: 1622c9df025e33ac435adb3b3318d237c36ca7cec659Jakob Stoklund Olesen if (MO.isDef() && TargetRegisterInfo::isVirtualRegister(MO.getReg())) 162372aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner continue; // Skip virtual register defs. 162472aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner Key |= MO.getReg(); 162572aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner break; 162672aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner case MachineOperand::MO_Immediate: 162772aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner Key |= MO.getImm(); 162872aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner break; 162972aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner case MachineOperand::MO_FrameIndex: 163072aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner case MachineOperand::MO_ConstantPoolIndex: 163172aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner case MachineOperand::MO_JumpTableIndex: 163272aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner Key |= MO.getIndex(); 163372aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner break; 163472aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner case MachineOperand::MO_MachineBasicBlock: 163572aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner Key |= DenseMapInfo<void*>::getHashValue(MO.getMBB()); 163672aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner break; 163772aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner case MachineOperand::MO_GlobalAddress: 163872aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner Key |= DenseMapInfo<void*>::getHashValue(MO.getGlobal()); 163972aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner break; 164072aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner case MachineOperand::MO_BlockAddress: 164172aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner Key |= DenseMapInfo<void*>::getHashValue(MO.getBlockAddress()); 164272aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner break; 164372aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner case MachineOperand::MO_MCSymbol: 164472aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner Key |= DenseMapInfo<void*>::getHashValue(MO.getMCSymbol()); 164572aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner break; 164667eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Cheng } 164767eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Cheng Key += ~(Key << 32); 164867eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Cheng Key ^= (Key >> 22); 164967eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Cheng Key += ~(Key << 13); 165067eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Cheng Key ^= (Key >> 8); 165167eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Cheng Key += (Key << 3); 165267eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Cheng Key ^= (Key >> 15); 165367eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Cheng Key += ~(Key << 27); 165467eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Cheng Key ^= (Key >> 31); 165567eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Cheng Hash = (unsigned)Key + Hash * 37; 165667eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Cheng } 165767eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Cheng return Hash; 165867eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Cheng} 1659