MachineInstr.cpp revision 7a2ecd3f99ae4dede7e8c1984c2a08984be69363
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()); 128cf724f078623e786fc92335fdb0ec70b46f2e86dJakob Stoklund Olesen // Note that getSubReg() may return 0 if the sub-register doesn't exist. 129cf724f078623e786fc92335fdb0ec70b46f2e86dJakob Stoklund Olesen // That won't happen in legal code. 1302da53370241fdd1b5c291483311b34e609f06c73Jakob Stoklund Olesen setSubReg(0); 1312da53370241fdd1b5c291483311b34e609f06c73Jakob Stoklund Olesen } 1322da53370241fdd1b5c291483311b34e609f06c73Jakob Stoklund Olesen setReg(Reg); 1332da53370241fdd1b5c291483311b34e609f06c73Jakob Stoklund Olesen} 1342da53370241fdd1b5c291483311b34e609f06c73Jakob Stoklund Olesen 13562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// ChangeToImmediate - Replace this operand with a new immediate operand of 13662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// the specified value. If an operand is known to be an immediate already, 13762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// the setImm method should be used. 13862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattnervoid MachineOperand::ChangeToImmediate(int64_t ImmVal) { 13962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // If this operand is currently a register operand, and if this is in a 14062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // function, deregister the operand from the register's use/def list. 141d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (isReg() && getParent() && getParent()->getParent() && 14262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner getParent()->getParent()->getParent()) 14362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner RemoveRegOperandFromRegInfo(); 14462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 14562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner OpKind = MO_Immediate; 14662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Contents.ImmVal = ImmVal; 14762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner} 14862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 14962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// ChangeToRegister - Replace this operand with a new register operand of 15062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// the specified value. If an operand is known to be an register already, 15162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// the setReg method should be used. 15262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattnervoid MachineOperand::ChangeToRegister(unsigned Reg, bool isDef, bool isImp, 1539653f9ec970147a12216d787078eab2f8b9c122aDale Johannesen bool isKill, bool isDead, bool isUndef, 1549653f9ec970147a12216d787078eab2f8b9c122aDale Johannesen bool isDebug) { 15562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // If this operand is already a register operand, use setReg to update the 15662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // register's use/def lists. 157d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (isReg()) { 158e009180f2bbcf5edbe3b583936c37c4b3be2d082Dale Johannesen assert(!isEarlyClobber()); 15962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner setReg(Reg); 16062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } else { 16162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Otherwise, change this to a register and set the reg#. 16262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner OpKind = MO_Register; 1632594746045258958673ebe42db2a27a4d05b0b73Jakob Stoklund Olesen SmallContents.RegNo = Reg; 16462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 16562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // If this operand is embedded in a function, add the operand to the 16662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // register's use/def list. 16762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (MachineInstr *MI = getParent()) 16862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (MachineBasicBlock *MBB = MI->getParent()) 16962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (MachineFunction *MF = MBB->getParent()) 17062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner AddRegOperandToRegInfo(&MF->getRegInfo()); 17162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 17262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 17362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner IsDef = isDef; 17462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner IsImp = isImp; 17562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner IsKill = isKill; 17662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner IsDead = isDead; 1774784f1fc73abf6005b7b7262d395af71b57b1255Evan Cheng IsUndef = isUndef; 178e009180f2bbcf5edbe3b583936c37c4b3be2d082Dale Johannesen IsEarlyClobber = false; 1799653f9ec970147a12216d787078eab2f8b9c122aDale Johannesen IsDebug = isDebug; 18062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner SubReg = 0; 18162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner} 18262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 183f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner/// isIdenticalTo - Return true if this operand is identical to the specified 184f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner/// operand. 185f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattnerbool MachineOperand::isIdenticalTo(const MachineOperand &Other) const { 18631530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner if (getType() != Other.getType() || 18731530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner getTargetFlags() != Other.getTargetFlags()) 18831530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner return false; 189f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner 190f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner switch (getType()) { 191c23197a26f34f559ea9797de51e187087c039c42Torok Edwin default: llvm_unreachable("Unrecognized operand type"); 192f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_Register: 193f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner return getReg() == Other.getReg() && isDef() == Other.isDef() && 194f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner getSubReg() == Other.getSubReg(); 195f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_Immediate: 196f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner return getImm() == Other.getImm(); 197e8b7ccf0c9a06831266d690d0b10ead71e0a4ac5Nate Begeman case MachineOperand::MO_FPImmediate: 198e8b7ccf0c9a06831266d690d0b10ead71e0a4ac5Nate Begeman return getFPImm() == Other.getFPImm(); 199f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_MachineBasicBlock: 200f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner return getMBB() == Other.getMBB(); 201f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_FrameIndex: 2028aa797aa51cd4ea1ec6f46f4891a6897944b75b2Chris Lattner return getIndex() == Other.getIndex(); 203f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_ConstantPoolIndex: 2048aa797aa51cd4ea1ec6f46f4891a6897944b75b2Chris Lattner return getIndex() == Other.getIndex() && getOffset() == Other.getOffset(); 205f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_JumpTableIndex: 2068aa797aa51cd4ea1ec6f46f4891a6897944b75b2Chris Lattner return getIndex() == Other.getIndex(); 207f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_GlobalAddress: 208f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner return getGlobal() == Other.getGlobal() && getOffset() == Other.getOffset(); 209f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_ExternalSymbol: 210f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner return !strcmp(getSymbolName(), Other.getSymbolName()) && 211f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner getOffset() == Other.getOffset(); 2128c2b52552c90f39e4b2fed43e309e599e742b6acDan Gohman case MachineOperand::MO_BlockAddress: 2138c2b52552c90f39e4b2fed43e309e599e742b6acDan Gohman return getBlockAddress() == Other.getBlockAddress(); 21472aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner case MachineOperand::MO_MCSymbol: 21572aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner return getMCSymbol() == Other.getMCSymbol(); 21624ad3ed71fe93059d1b46ffdbfe63259762bf547Chris Lattner case MachineOperand::MO_Metadata: 21724ad3ed71fe93059d1b46ffdbfe63259762bf547Chris Lattner return getMetadata() == Other.getMetadata(); 218f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner } 219f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner} 220f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner 221f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner/// print - Print the specified machine operand. 222f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner/// 2235ca6bd14a00ba5310ce1a632d3a0cc8f8af31433Mon P Wangvoid MachineOperand::print(raw_ostream &OS, const TargetMachine *TM) const { 22480f6c5898113806130975fd56d24929b06bf54f8Dan Gohman // If the instruction is embedded into a basic block, we can find the 22580f6c5898113806130975fd56d24929b06bf54f8Dan Gohman // target info for the instruction. 22680f6c5898113806130975fd56d24929b06bf54f8Dan Gohman if (!TM) 22780f6c5898113806130975fd56d24929b06bf54f8Dan Gohman if (const MachineInstr *MI = getParent()) 22880f6c5898113806130975fd56d24929b06bf54f8Dan Gohman if (const MachineBasicBlock *MBB = MI->getParent()) 22980f6c5898113806130975fd56d24929b06bf54f8Dan Gohman if (const MachineFunction *MF = MBB->getParent()) 23080f6c5898113806130975fd56d24929b06bf54f8Dan Gohman TM = &MF->getTarget(); 2314314268128be6d54c9a7f0709680e5a5b40f3ab3Jakob Stoklund Olesen const TargetRegisterInfo *TRI = TM ? TM->getRegisterInfo() : 0; 23280f6c5898113806130975fd56d24929b06bf54f8Dan Gohman 233f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner switch (getType()) { 234f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_Register: 2354314268128be6d54c9a7f0709680e5a5b40f3ab3Jakob Stoklund Olesen OS << PrintReg(getReg(), TRI, getSubReg()); 2362ccc83966914593d98af5671ce10a3bf2dcf7513Dan Gohman 2374784f1fc73abf6005b7b7262d395af71b57b1255Evan Cheng if (isDef() || isKill() || isDead() || isImplicit() || isUndef() || 2384784f1fc73abf6005b7b7262d395af71b57b1255Evan Cheng isEarlyClobber()) { 23931530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner OS << '<'; 240f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner bool NeedComma = false; 2410789707c49135bba69e0e308d0fbc41bb7cbe78aEvan Cheng if (isDef()) { 24231530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner if (NeedComma) OS << ','; 243913d3dfac43f29921467f33aa743f28ee1bfc5d1Dale Johannesen if (isEarlyClobber()) 244913d3dfac43f29921467f33aa743f28ee1bfc5d1Dale Johannesen OS << "earlyclobber,"; 2450789707c49135bba69e0e308d0fbc41bb7cbe78aEvan Cheng if (isImplicit()) 2460789707c49135bba69e0e308d0fbc41bb7cbe78aEvan Cheng OS << "imp-"; 247f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner OS << "def"; 248f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner NeedComma = true; 2495affca0763836e15ca15e78ed3a0fd56ef6b2e92Evan Cheng } else if (isImplicit()) { 2500789707c49135bba69e0e308d0fbc41bb7cbe78aEvan Cheng OS << "imp-use"; 2515affca0763836e15ca15e78ed3a0fd56ef6b2e92Evan Cheng NeedComma = true; 2525affca0763836e15ca15e78ed3a0fd56ef6b2e92Evan Cheng } 2530789707c49135bba69e0e308d0fbc41bb7cbe78aEvan Cheng 2544784f1fc73abf6005b7b7262d395af71b57b1255Evan Cheng if (isKill() || isDead() || isUndef()) { 25531530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner if (NeedComma) OS << ','; 256181eb737b28628adc4376b973610a02039385026Bill Wendling if (isKill()) OS << "kill"; 257181eb737b28628adc4376b973610a02039385026Bill Wendling if (isDead()) OS << "dead"; 2584784f1fc73abf6005b7b7262d395af71b57b1255Evan Cheng if (isUndef()) { 2594784f1fc73abf6005b7b7262d395af71b57b1255Evan Cheng if (isKill() || isDead()) 2604784f1fc73abf6005b7b7262d395af71b57b1255Evan Cheng OS << ','; 2614784f1fc73abf6005b7b7262d395af71b57b1255Evan Cheng OS << "undef"; 2624784f1fc73abf6005b7b7262d395af71b57b1255Evan Cheng } 263f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner } 26431530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner OS << '>'; 265f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner } 266f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner break; 267f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_Immediate: 268f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner OS << getImm(); 269f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner break; 2708594d429e02c688d428036f8563f09572da3fbffDevang Patel case MachineOperand::MO_CImmediate: 2718594d429e02c688d428036f8563f09572da3fbffDevang Patel getCImm()->getValue().print(OS, false); 2728594d429e02c688d428036f8563f09572da3fbffDevang Patel break; 273e8b7ccf0c9a06831266d690d0b10ead71e0a4ac5Nate Begeman case MachineOperand::MO_FPImmediate: 274cf0fe8d813727383d630055bb9d1cde21b00b7e7Chris Lattner if (getFPImm()->getType()->isFloatTy()) 275e8b7ccf0c9a06831266d690d0b10ead71e0a4ac5Nate Begeman OS << getFPImm()->getValueAPF().convertToFloat(); 27631530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner else 277e8b7ccf0c9a06831266d690d0b10ead71e0a4ac5Nate Begeman OS << getFPImm()->getValueAPF().convertToDouble(); 278e8b7ccf0c9a06831266d690d0b10ead71e0a4ac5Nate Begeman break; 279f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_MachineBasicBlock: 2800ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman OS << "<BB#" << getMBB()->getNumber() << ">"; 281f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner break; 282f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_FrameIndex: 28331530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner OS << "<fi#" << getIndex() << '>'; 284f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner break; 285f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_ConstantPoolIndex: 2868aa797aa51cd4ea1ec6f46f4891a6897944b75b2Chris Lattner OS << "<cp#" << getIndex(); 287f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner if (getOffset()) OS << "+" << getOffset(); 28831530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner OS << '>'; 289f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner break; 290f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_JumpTableIndex: 29131530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner OS << "<jt#" << getIndex() << '>'; 292f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner break; 293f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_GlobalAddress: 2948d4e3b5b48b245ed65259270a53fcaf0bf91d9f7Dan Gohman OS << "<ga:"; 2958d4e3b5b48b245ed65259270a53fcaf0bf91d9f7Dan Gohman WriteAsOperand(OS, getGlobal(), /*PrintType=*/false); 296f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner if (getOffset()) OS << "+" << getOffset(); 29731530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner OS << '>'; 298f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner break; 299f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_ExternalSymbol: 300f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner OS << "<es:" << getSymbolName(); 301f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner if (getOffset()) OS << "+" << getOffset(); 30231530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner OS << '>'; 303f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner break; 3048c2b52552c90f39e4b2fed43e309e599e742b6acDan Gohman case MachineOperand::MO_BlockAddress: 3055f72a5ebc84a1935878b5b2d3166a505c520cdfcDale Johannesen OS << '<'; 3060ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman WriteAsOperand(OS, getBlockAddress(), /*PrintType=*/false); 3078c2b52552c90f39e4b2fed43e309e599e742b6acDan Gohman OS << '>'; 3088c2b52552c90f39e4b2fed43e309e599e742b6acDan Gohman break; 3095f72a5ebc84a1935878b5b2d3166a505c520cdfcDale Johannesen case MachineOperand::MO_Metadata: 3105f72a5ebc84a1935878b5b2d3166a505c520cdfcDale Johannesen OS << '<'; 3115f72a5ebc84a1935878b5b2d3166a505c520cdfcDale Johannesen WriteAsOperand(OS, getMetadata(), /*PrintType=*/false); 3125f72a5ebc84a1935878b5b2d3166a505c520cdfcDale Johannesen OS << '>'; 3135f72a5ebc84a1935878b5b2d3166a505c520cdfcDale Johannesen break; 31472aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner case MachineOperand::MO_MCSymbol: 31572aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner OS << "<MCSym=" << *getMCSymbol() << '>'; 31672aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner break; 317f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner default: 318c23197a26f34f559ea9797de51e187087c039c42Torok Edwin llvm_unreachable("Unrecognized operand type"); 319f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner } 32031530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner 32131530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner if (unsigned TF = getTargetFlags()) 32231530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner OS << "[TF=" << TF << ']'; 323f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner} 324f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner 325f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner//===----------------------------------------------------------------------===// 326ce42e404a26454f4332c2c350c75ad27bbbb16f7Dan Gohman// MachineMemOperand Implementation 327ce42e404a26454f4332c2c350c75ad27bbbb16f7Dan Gohman//===----------------------------------------------------------------------===// 328ce42e404a26454f4332c2c350c75ad27bbbb16f7Dan Gohman 32940a858f6e71ed8d68779d00c63dad15baded3562Chris Lattner/// getAddrSpace - Return the LLVM IR address space number that this pointer 33040a858f6e71ed8d68779d00c63dad15baded3562Chris Lattner/// points into. 33140a858f6e71ed8d68779d00c63dad15baded3562Chris Lattnerunsigned MachinePointerInfo::getAddrSpace() const { 33240a858f6e71ed8d68779d00c63dad15baded3562Chris Lattner if (V == 0) return 0; 33340a858f6e71ed8d68779d00c63dad15baded3562Chris Lattner return cast<PointerType>(V->getType())->getAddressSpace(); 33440a858f6e71ed8d68779d00c63dad15baded3562Chris Lattner} 33540a858f6e71ed8d68779d00c63dad15baded3562Chris Lattner 336e8639036b1fb3a5b5e9589fe4e9f2ee1b77c36bdChris Lattner/// getConstantPool - Return a MachinePointerInfo record that refers to the 337e8639036b1fb3a5b5e9589fe4e9f2ee1b77c36bdChris Lattner/// constant pool. 338e8639036b1fb3a5b5e9589fe4e9f2ee1b77c36bdChris LattnerMachinePointerInfo MachinePointerInfo::getConstantPool() { 339e8639036b1fb3a5b5e9589fe4e9f2ee1b77c36bdChris Lattner return MachinePointerInfo(PseudoSourceValue::getConstantPool()); 340e8639036b1fb3a5b5e9589fe4e9f2ee1b77c36bdChris Lattner} 341e8639036b1fb3a5b5e9589fe4e9f2ee1b77c36bdChris Lattner 342e8639036b1fb3a5b5e9589fe4e9f2ee1b77c36bdChris Lattner/// getFixedStack - Return a MachinePointerInfo record that refers to the 343e8639036b1fb3a5b5e9589fe4e9f2ee1b77c36bdChris Lattner/// the specified FrameIndex. 344e8639036b1fb3a5b5e9589fe4e9f2ee1b77c36bdChris LattnerMachinePointerInfo MachinePointerInfo::getFixedStack(int FI, int64_t offset) { 345e8639036b1fb3a5b5e9589fe4e9f2ee1b77c36bdChris Lattner return MachinePointerInfo(PseudoSourceValue::getFixedStack(FI), offset); 346e8639036b1fb3a5b5e9589fe4e9f2ee1b77c36bdChris Lattner} 347e8639036b1fb3a5b5e9589fe4e9f2ee1b77c36bdChris Lattner 3481daa6f479dd5fb4123f1ffbb10a3825da7d2c6b8Chris LattnerMachinePointerInfo MachinePointerInfo::getJumpTable() { 3491daa6f479dd5fb4123f1ffbb10a3825da7d2c6b8Chris Lattner return MachinePointerInfo(PseudoSourceValue::getJumpTable()); 3501daa6f479dd5fb4123f1ffbb10a3825da7d2c6b8Chris Lattner} 3511daa6f479dd5fb4123f1ffbb10a3825da7d2c6b8Chris Lattner 3521daa6f479dd5fb4123f1ffbb10a3825da7d2c6b8Chris LattnerMachinePointerInfo MachinePointerInfo::getGOT() { 3531daa6f479dd5fb4123f1ffbb10a3825da7d2c6b8Chris Lattner return MachinePointerInfo(PseudoSourceValue::getGOT()); 3541daa6f479dd5fb4123f1ffbb10a3825da7d2c6b8Chris Lattner} 35540a858f6e71ed8d68779d00c63dad15baded3562Chris Lattner 356fc448ff89b4fb7721de9da0b96fd00c13160c4c7Chris LattnerMachinePointerInfo MachinePointerInfo::getStack(int64_t Offset) { 357fc448ff89b4fb7721de9da0b96fd00c13160c4c7Chris Lattner return MachinePointerInfo(PseudoSourceValue::getStack(), Offset); 358fc448ff89b4fb7721de9da0b96fd00c13160c4c7Chris Lattner} 359fc448ff89b4fb7721de9da0b96fd00c13160c4c7Chris Lattner 360da39c3964423744b4d79aebef8bece3e9141d5fcChris LattnerMachineMemOperand::MachineMemOperand(MachinePointerInfo ptrinfo, unsigned f, 361f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman uint64_t s, unsigned int a, 362f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman const MDNode *TBAAInfo) 363da39c3964423744b4d79aebef8bece3e9141d5fcChris Lattner : PtrInfo(ptrinfo), Size(s), 364f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman Flags((f & ((1 << MOMaxBits) - 1)) | ((Log2_32(a) + 1) << MOMaxBits)), 365f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman TBAAInfo(TBAAInfo) { 366da39c3964423744b4d79aebef8bece3e9141d5fcChris Lattner assert((PtrInfo.V == 0 || isa<PointerType>(PtrInfo.V->getType())) && 367da39c3964423744b4d79aebef8bece3e9141d5fcChris Lattner "invalid pointer value"); 36828f02fdd76f4efc05d14649e0eec90ce8e71e17eDan Gohman assert(getBaseAlignment() == a && "Alignment is not a power of 2!"); 369c5e1f98fdf44993c2bfe4c1ef633b2358cd718c1Dan Gohman assert((isLoad() || isStore()) && "Not a load/store!"); 370ce42e404a26454f4332c2c350c75ad27bbbb16f7Dan Gohman} 371ce42e404a26454f4332c2c350c75ad27bbbb16f7Dan Gohman 372b8d2f550b84523e8a73198f98e5d450ec3b4fee7Dan Gohman/// Profile - Gather unique data for the object. 373b8d2f550b84523e8a73198f98e5d450ec3b4fee7Dan Gohman/// 374b8d2f550b84523e8a73198f98e5d450ec3b4fee7Dan Gohmanvoid MachineMemOperand::Profile(FoldingSetNodeID &ID) const { 375e8e2e80f40495fdd5ad475beb54fcf0989b6b7c5Chris Lattner ID.AddInteger(getOffset()); 376b8d2f550b84523e8a73198f98e5d450ec3b4fee7Dan Gohman ID.AddInteger(Size); 377e8e2e80f40495fdd5ad475beb54fcf0989b6b7c5Chris Lattner ID.AddPointer(getValue()); 378b8d2f550b84523e8a73198f98e5d450ec3b4fee7Dan Gohman ID.AddInteger(Flags); 379b8d2f550b84523e8a73198f98e5d450ec3b4fee7Dan Gohman} 380b8d2f550b84523e8a73198f98e5d450ec3b4fee7Dan Gohman 381c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohmanvoid MachineMemOperand::refineAlignment(const MachineMemOperand *MMO) { 382c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman // The Value and Offset may differ due to CSE. But the flags and size 383c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman // should be the same. 384c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman assert(MMO->getFlags() == getFlags() && "Flags mismatch!"); 385c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman assert(MMO->getSize() == getSize() && "Size mismatch!"); 386c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman 387c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman if (MMO->getBaseAlignment() >= getBaseAlignment()) { 388c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman // Update the alignment value. 389ba2b297ca53cd685ba397177e9d2d8c239da971eDavid Greene Flags = (Flags & ((1 << MOMaxBits) - 1)) | 390ba2b297ca53cd685ba397177e9d2d8c239da971eDavid Greene ((Log2_32(MMO->getBaseAlignment()) + 1) << MOMaxBits); 391c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman // Also update the base and offset, because the new alignment may 392c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman // not be applicable with the old ones. 393e8e2e80f40495fdd5ad475beb54fcf0989b6b7c5Chris Lattner PtrInfo = MMO->PtrInfo; 394c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman } 395c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman} 396c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman 3974b2ebc19288491cb068f268c311d9fef0ec6a29fDan Gohman/// getAlignment - Return the minimum known alignment in bytes of the 3984b2ebc19288491cb068f268c311d9fef0ec6a29fDan Gohman/// actual memory reference. 3994b2ebc19288491cb068f268c311d9fef0ec6a29fDan Gohmanuint64_t MachineMemOperand::getAlignment() const { 4004b2ebc19288491cb068f268c311d9fef0ec6a29fDan Gohman return MinAlign(getBaseAlignment(), getOffset()); 4014b2ebc19288491cb068f268c311d9fef0ec6a29fDan Gohman} 4024b2ebc19288491cb068f268c311d9fef0ec6a29fDan Gohman 403c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohmanraw_ostream &llvm::operator<<(raw_ostream &OS, const MachineMemOperand &MMO) { 404c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman assert((MMO.isLoad() || MMO.isStore()) && 405cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman "SV has to be a load, store or both."); 406cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman 407c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman if (MMO.isVolatile()) 408cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman OS << "Volatile "; 409cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman 410c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman if (MMO.isLoad()) 411cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman OS << "LD"; 412c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman if (MMO.isStore()) 413cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman OS << "ST"; 414c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman OS << MMO.getSize(); 415cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman 416cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman // Print the address information. 417cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman OS << "["; 418c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman if (!MMO.getValue()) 419cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman OS << "<unknown>"; 420cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman else 421c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman WriteAsOperand(OS, MMO.getValue(), /*PrintType=*/false); 422cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman 423cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman // If the alignment of the memory reference itself differs from the alignment 424cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman // of the base pointer, print the base alignment explicitly, next to the base 425cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman // pointer. 426c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman if (MMO.getBaseAlignment() != MMO.getAlignment()) 427c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman OS << "(align=" << MMO.getBaseAlignment() << ")"; 428cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman 429c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman if (MMO.getOffset() != 0) 430c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman OS << "+" << MMO.getOffset(); 431cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman OS << "]"; 432cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman 433cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman // Print the alignment of the reference. 434c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman if (MMO.getBaseAlignment() != MMO.getAlignment() || 435c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman MMO.getBaseAlignment() != MMO.getSize()) 436c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman OS << "(align=" << MMO.getAlignment() << ")"; 437cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman 438f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman // Print TBAA info. 439f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman if (const MDNode *TBAAInfo = MMO.getTBAAInfo()) { 440f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman OS << "(tbaa="; 441f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman if (TBAAInfo->getNumOperands() > 0) 442f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman WriteAsOperand(OS, TBAAInfo->getOperand(0), /*PrintType=*/false); 443f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman else 444f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman OS << "<unknown>"; 445f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman OS << ")"; 446f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman } 447f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman 448d65ba721cccb0d0998750908bf2533e08b106f38Bill Wendling // Print nontemporal info. 449d65ba721cccb0d0998750908bf2533e08b106f38Bill Wendling if (MMO.isNonTemporal()) 450d65ba721cccb0d0998750908bf2533e08b106f38Bill Wendling OS << "(nontemporal)"; 451d65ba721cccb0d0998750908bf2533e08b106f38Bill Wendling 452cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman return OS; 453cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman} 454cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman 455ce42e404a26454f4332c2c350c75ad27bbbb16f7Dan Gohman//===----------------------------------------------------------------------===// 456f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner// MachineInstr Implementation 457f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner//===----------------------------------------------------------------------===// 458f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner 459c0f64ffab93d11fb27a3b8a0707b77400918a20eEvan Cheng/// MachineInstr ctor - This constructor creates a dummy MachineInstr with 46067f660cb080965ea93ed6d7265a67100f2fe38e4Evan Cheng/// TID NULL and no operands. 461c0f64ffab93d11fb27a3b8a0707b77400918a20eEvan ChengMachineInstr::MachineInstr() 4626dd97471c43805b3febf598d50498a09a02e93f4Anton Korobeynikov : TID(0), NumImplicitOps(0), Flags(0), AsmPrinterFlags(0), 4636dd97471c43805b3febf598d50498a09a02e93f4Anton Korobeynikov MemRefs(0), MemRefsEnd(0), 464a4f2bb08de92ccec21cbb3d0a9518384b0173660Chris Lattner Parent(0) { 4652c3f7ae3843bdc9dcfe85393e178211976c1f9bdDan Gohman // Make sure that we get added to a machine basicblock 4662c3f7ae3843bdc9dcfe85393e178211976c1f9bdDan Gohman LeakDetector::addGarbageObject(this); 4677279122e668816bed0d4f38d3392bbab0140fad0Chris Lattner} 4687279122e668816bed0d4f38d3392bbab0140fad0Chris Lattner 46967f660cb080965ea93ed6d7265a67100f2fe38e4Evan Chengvoid MachineInstr::addImplicitDefUseOperands() { 47067f660cb080965ea93ed6d7265a67100f2fe38e4Evan Cheng if (TID->ImplicitDefs) 471a4161ee99478e7f8f9e33481e1c0dc79f0b4bd7dChris Lattner for (const unsigned *ImpDefs = TID->ImplicitDefs; *ImpDefs; ++ImpDefs) 4728019f41c0b7fda031d494e3900eada7d4e494772Chris Lattner addOperand(MachineOperand::CreateReg(*ImpDefs, true, true)); 47367f660cb080965ea93ed6d7265a67100f2fe38e4Evan Cheng if (TID->ImplicitUses) 474a4161ee99478e7f8f9e33481e1c0dc79f0b4bd7dChris Lattner for (const unsigned *ImpUses = TID->ImplicitUses; *ImpUses; ++ImpUses) 4758019f41c0b7fda031d494e3900eada7d4e494772Chris Lattner addOperand(MachineOperand::CreateReg(*ImpUses, false, true)); 476d7de496b23fca8145f777a56281457bf64e8bbadEvan Cheng} 477d7de496b23fca8145f777a56281457bf64e8bbadEvan Cheng 4780855cadb00c598d4e78c8f1842a9c1b9bf19c667Bob Wilson/// MachineInstr ctor - This constructor creates a MachineInstr and adds the 4790855cadb00c598d4e78c8f1842a9c1b9bf19c667Bob Wilson/// implicit operands. It reserves space for the number of operands specified by 4800855cadb00c598d4e78c8f1842a9c1b9bf19c667Bob Wilson/// the TargetInstrDesc. 481749c6f6b5ed301c84aac562e414486549d7b98ebChris LattnerMachineInstr::MachineInstr(const TargetInstrDesc &tid, bool NoImp) 4826dd97471c43805b3febf598d50498a09a02e93f4Anton Korobeynikov : TID(&tid), NumImplicitOps(0), Flags(0), AsmPrinterFlags(0), 483a4f2bb08de92ccec21cbb3d0a9518384b0173660Chris Lattner MemRefs(0), MemRefsEnd(0), Parent(0) { 4841793ab9e70c48146a5f1592b84b2b93e38c67fa4Bob Wilson if (!NoImp) 4851793ab9e70c48146a5f1592b84b2b93e38c67fa4Bob Wilson NumImplicitOps = TID->getNumImplicitDefs() + TID->getNumImplicitUses(); 486349c4952009525b27383e2120a6b3c998f39bd09Chris Lattner Operands.reserve(NumImplicitOps + TID->getNumOperands()); 487fa9457276a2174aaf302240dd32d89900ad021aeEvan Cheng if (!NoImp) 488fa9457276a2174aaf302240dd32d89900ad021aeEvan Cheng addImplicitDefUseOperands(); 4892c3f7ae3843bdc9dcfe85393e178211976c1f9bdDan Gohman // Make sure that we get added to a machine basicblock 4902c3f7ae3843bdc9dcfe85393e178211976c1f9bdDan Gohman LeakDetector::addGarbageObject(this); 491d7de496b23fca8145f777a56281457bf64e8bbadEvan Cheng} 492d7de496b23fca8145f777a56281457bf64e8bbadEvan Cheng 49306efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen/// MachineInstr ctor - As above, but with a DebugLoc. 49406efc02854a96a9f92edc3bf46b0451f488cf2e6Dale JohannesenMachineInstr::MachineInstr(const TargetInstrDesc &tid, const DebugLoc dl, 49506efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen bool NoImp) 4966dd97471c43805b3febf598d50498a09a02e93f4Anton Korobeynikov : TID(&tid), NumImplicitOps(0), Flags(0), AsmPrinterFlags(0), 4976dd97471c43805b3febf598d50498a09a02e93f4Anton Korobeynikov MemRefs(0), MemRefsEnd(0), Parent(0), debugLoc(dl) { 4981793ab9e70c48146a5f1592b84b2b93e38c67fa4Bob Wilson if (!NoImp) 4991793ab9e70c48146a5f1592b84b2b93e38c67fa4Bob Wilson NumImplicitOps = TID->getNumImplicitDefs() + TID->getNumImplicitUses(); 50006efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen Operands.reserve(NumImplicitOps + TID->getNumOperands()); 50106efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen if (!NoImp) 50206efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen addImplicitDefUseOperands(); 50306efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen // Make sure that we get added to a machine basicblock 50406efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen LeakDetector::addGarbageObject(this); 50506efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen} 50606efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen 50706efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen/// MachineInstr ctor - Work exactly the same as the ctor two above, except 50806efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen/// that the MachineInstr is created and added to the end of the specified 50906efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen/// basic block. 51006efc02854a96a9f92edc3bf46b0451f488cf2e6Dale JohannesenMachineInstr::MachineInstr(MachineBasicBlock *MBB, const TargetInstrDesc &tid) 5116dd97471c43805b3febf598d50498a09a02e93f4Anton Korobeynikov : TID(&tid), NumImplicitOps(0), Flags(0), AsmPrinterFlags(0), 512a4f2bb08de92ccec21cbb3d0a9518384b0173660Chris Lattner MemRefs(0), MemRefsEnd(0), Parent(0) { 51306efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen assert(MBB && "Cannot use inserting ctor with null basic block!"); 5141793ab9e70c48146a5f1592b84b2b93e38c67fa4Bob Wilson NumImplicitOps = TID->getNumImplicitDefs() + TID->getNumImplicitUses(); 51506efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen Operands.reserve(NumImplicitOps + TID->getNumOperands()); 51606efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen addImplicitDefUseOperands(); 51706efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen // Make sure that we get added to a machine basicblock 51806efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen LeakDetector::addGarbageObject(this); 51906efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen MBB->push_back(this); // Add instruction to end of basic block! 52006efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen} 52106efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen 52206efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen/// MachineInstr ctor - As above, but with a DebugLoc. 523ddd7fcb887be752ec8167276a697994ad9cb9c4eChris Lattner/// 52406efc02854a96a9f92edc3bf46b0451f488cf2e6Dale JohannesenMachineInstr::MachineInstr(MachineBasicBlock *MBB, const DebugLoc dl, 525749c6f6b5ed301c84aac562e414486549d7b98ebChris Lattner const TargetInstrDesc &tid) 5266dd97471c43805b3febf598d50498a09a02e93f4Anton Korobeynikov : TID(&tid), NumImplicitOps(0), Flags(0), AsmPrinterFlags(0), 5276dd97471c43805b3febf598d50498a09a02e93f4Anton Korobeynikov MemRefs(0), MemRefsEnd(0), Parent(0), debugLoc(dl) { 528ddd7fcb887be752ec8167276a697994ad9cb9c4eChris Lattner assert(MBB && "Cannot use inserting ctor with null basic block!"); 5291793ab9e70c48146a5f1592b84b2b93e38c67fa4Bob Wilson NumImplicitOps = TID->getNumImplicitDefs() + TID->getNumImplicitUses(); 530349c4952009525b27383e2120a6b3c998f39bd09Chris Lattner Operands.reserve(NumImplicitOps + TID->getNumOperands()); 53167f660cb080965ea93ed6d7265a67100f2fe38e4Evan Cheng addImplicitDefUseOperands(); 5322c3f7ae3843bdc9dcfe85393e178211976c1f9bdDan Gohman // Make sure that we get added to a machine basicblock 5332c3f7ae3843bdc9dcfe85393e178211976c1f9bdDan Gohman LeakDetector::addGarbageObject(this); 534ddd7fcb887be752ec8167276a697994ad9cb9c4eChris Lattner MBB->push_back(this); // Add instruction to end of basic block! 535ddd7fcb887be752ec8167276a697994ad9cb9c4eChris Lattner} 536ddd7fcb887be752ec8167276a697994ad9cb9c4eChris Lattner 537ce22e76996d3ff0930716fa60c29df60a7e0481bMisha Brukman/// MachineInstr ctor - Copies MachineInstr arg exactly 538ce22e76996d3ff0930716fa60c29df60a7e0481bMisha Brukman/// 5391ed9922794cda9dbe295e74674b909287e544632Evan ChengMachineInstr::MachineInstr(MachineFunction &MF, const MachineInstr &MI) 5406dd97471c43805b3febf598d50498a09a02e93f4Anton Korobeynikov : TID(&MI.getDesc()), NumImplicitOps(0), Flags(0), AsmPrinterFlags(0), 541c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman MemRefs(MI.MemRefs), MemRefsEnd(MI.MemRefsEnd), 542c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman Parent(0), debugLoc(MI.getDebugLoc()) { 543943b5e117fe9a087f9aa529a2632c2d32cc22374Chris Lattner Operands.reserve(MI.getNumOperands()); 544b5159ed0cb7943e5938782f7693beb18342165ceTanya Lattner 545ce22e76996d3ff0930716fa60c29df60a7e0481bMisha Brukman // Add operands 5461ed9922794cda9dbe295e74674b909287e544632Evan Cheng for (unsigned i = 0; i != MI.getNumOperands(); ++i) 5471ed9922794cda9dbe295e74674b909287e544632Evan Cheng addOperand(MI.getOperand(i)); 5481ed9922794cda9dbe295e74674b909287e544632Evan Cheng NumImplicitOps = MI.NumImplicitOps; 5490c63e03e04d3982e1913479bba404c3debc9a27eTanya Lattner 5506dd97471c43805b3febf598d50498a09a02e93f4Anton Korobeynikov // Copy all the flags. 5516dd97471c43805b3febf598d50498a09a02e93f4Anton Korobeynikov Flags = MI.Flags; 5526dd97471c43805b3febf598d50498a09a02e93f4Anton Korobeynikov 5538e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman // Set parent to null. 554f20c1a497fe3922ac718429d65a5fe396890575eChris Lattner Parent = 0; 5556116a73da420d9b414a34ce2599dc7f6476e23fcDan Gohman 5566116a73da420d9b414a34ce2599dc7f6476e23fcDan Gohman LeakDetector::addGarbageObject(this); 557466b534a570f574ed485d875bbca8454f68dcb52Tanya Lattner} 558466b534a570f574ed485d875bbca8454f68dcb52Tanya Lattner 559ce22e76996d3ff0930716fa60c29df60a7e0481bMisha BrukmanMachineInstr::~MachineInstr() { 5602c3f7ae3843bdc9dcfe85393e178211976c1f9bdDan Gohman LeakDetector::removeGarbageObject(this); 561e12d6abfdfc5141b2001f0c369a0e1525315b9c0Chris Lattner#ifndef NDEBUG 56262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner for (unsigned i = 0, e = Operands.size(); i != e; ++i) { 563e12d6abfdfc5141b2001f0c369a0e1525315b9c0Chris Lattner assert(Operands[i].ParentMI == this && "ParentMI mismatch!"); 564d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman assert((!Operands[i].isReg() || !Operands[i].isOnRegUseList()) && 56562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner "Reg operand def/use list corrupted"); 56662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 567e12d6abfdfc5141b2001f0c369a0e1525315b9c0Chris Lattner#endif 568aad5c0505183a5b7913f1a443a1f0650122551ccAlkis Evlogimenos} 569aad5c0505183a5b7913f1a443a1f0650122551ccAlkis Evlogimenos 57062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// getRegInfo - If this instruction is embedded into a MachineFunction, 57162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// return the MachineRegisterInfo object for the current function, otherwise 57262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// return null. 57362ed6b9ade63bf01717ce5274fa11e93e873d245Chris LattnerMachineRegisterInfo *MachineInstr::getRegInfo() { 57462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (MachineBasicBlock *MBB = getParent()) 5754e526b9a5b36d9bac170c03df0a5d6fb76740ae2Dan Gohman return &MBB->getParent()->getRegInfo(); 57662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner return 0; 57762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner} 57862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 57962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// RemoveRegOperandsFromUseLists - Unlink all of the register operands in 58062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// this instruction from their respective use lists. This requires that the 58162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// operands already be on their use lists. 58262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattnervoid MachineInstr::RemoveRegOperandsFromUseLists() { 58362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner for (unsigned i = 0, e = Operands.size(); i != e; ++i) { 584d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (Operands[i].isReg()) 58562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands[i].RemoveRegOperandFromRegInfo(); 58662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 58762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner} 58862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 58962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// AddRegOperandsToUseLists - Add all of the register operands in 59062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// this instruction from their respective use lists. This requires that the 59162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// operands not be on their use lists yet. 59262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattnervoid MachineInstr::AddRegOperandsToUseLists(MachineRegisterInfo &RegInfo) { 59362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner for (unsigned i = 0, e = Operands.size(); i != e; ++i) { 594d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (Operands[i].isReg()) 59562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands[i].AddRegOperandToRegInfo(&RegInfo); 59662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 59762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner} 59862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 59962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 60062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// addOperand - Add the specified operand to the instruction. If it is an 60162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// implicit operand, it is added to the end of the operand list. If it is 60262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// an explicit operand it is added at the end of the explicit operand list 60362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// (before the first implicit operand). 60462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattnervoid MachineInstr::addOperand(const MachineOperand &Op) { 605d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman bool isImpReg = Op.isReg() && Op.isImplicit(); 60662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner assert((isImpReg || !OperandsComplete()) && 60762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner "Trying to add an operand to a machine instr that is already done!"); 60862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 609bcf28c08b3f0a3c4aa1be8f1485f6452d9a2b690Dan Gohman MachineRegisterInfo *RegInfo = getRegInfo(); 610bcf28c08b3f0a3c4aa1be8f1485f6452d9a2b690Dan Gohman 61162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // If we are adding the operand to the end of the list, our job is simpler. 61262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // This is true most of the time, so this is a reasonable optimization. 61362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (isImpReg || NumImplicitOps == 0) { 61462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // We can only do this optimization if we know that the operand list won't 61562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // reallocate. 61662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (Operands.empty() || Operands.size()+1 <= Operands.capacity()) { 61762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands.push_back(Op); 61862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 61962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Set the parent of the operand. 62062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands.back().ParentMI = this; 62162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 62262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // If the operand is a register, update the operand's use list. 62306801722a43c697eff0acee905de6b50257ce19bJim Grosbach if (Op.isReg()) { 624bcf28c08b3f0a3c4aa1be8f1485f6452d9a2b690Dan Gohman Operands.back().AddRegOperandToRegInfo(RegInfo); 62506801722a43c697eff0acee905de6b50257ce19bJim Grosbach // If the register operand is flagged as early, mark the operand as such 62606801722a43c697eff0acee905de6b50257ce19bJim Grosbach unsigned OpNo = Operands.size() - 1; 62706801722a43c697eff0acee905de6b50257ce19bJim Grosbach if (TID->getOperandConstraint(OpNo, TOI::EARLY_CLOBBER) != -1) 62806801722a43c697eff0acee905de6b50257ce19bJim Grosbach Operands[OpNo].setIsEarlyClobber(true); 62906801722a43c697eff0acee905de6b50257ce19bJim Grosbach } 63062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner return; 63162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 63262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 63362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 63462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Otherwise, we have to insert a real operand before any implicit ones. 63562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner unsigned OpNo = Operands.size()-NumImplicitOps; 63662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 63762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // If this instruction isn't embedded into a function, then we don't need to 63862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // update any operand lists. 63962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (RegInfo == 0) { 64062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Simple insertion, no reginfo update needed for other register operands. 64162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands.insert(Operands.begin()+OpNo, Op); 64262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands[OpNo].ParentMI = this; 64362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 64462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Do explicitly set the reginfo for this operand though, to ensure the 64562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // next/prev fields are properly nulled out. 64606801722a43c697eff0acee905de6b50257ce19bJim Grosbach if (Operands[OpNo].isReg()) { 64762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands[OpNo].AddRegOperandToRegInfo(0); 64806801722a43c697eff0acee905de6b50257ce19bJim Grosbach // If the register operand is flagged as early, mark the operand as such 64906801722a43c697eff0acee905de6b50257ce19bJim Grosbach if (TID->getOperandConstraint(OpNo, TOI::EARLY_CLOBBER) != -1) 65006801722a43c697eff0acee905de6b50257ce19bJim Grosbach Operands[OpNo].setIsEarlyClobber(true); 65106801722a43c697eff0acee905de6b50257ce19bJim Grosbach } 65262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 65362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } else if (Operands.size()+1 <= Operands.capacity()) { 65462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Otherwise, we have to remove register operands from their register use 65562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // list, add the operand, then add the register operands back to their use 65662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // list. This also must handle the case when the operand list reallocates 65762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // to somewhere else. 65862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 65962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // If insertion of this operand won't cause reallocation of the operand 66062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // list, just remove the implicit operands, add the operand, then re-add all 66162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // the rest of the operands. 66262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner for (unsigned i = OpNo, e = Operands.size(); i != e; ++i) { 663d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman assert(Operands[i].isReg() && "Should only be an implicit reg!"); 66462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands[i].RemoveRegOperandFromRegInfo(); 66562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 66662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 66762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Add the operand. If it is a register, add it to the reg list. 66862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands.insert(Operands.begin()+OpNo, Op); 66962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands[OpNo].ParentMI = this; 67062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 67106801722a43c697eff0acee905de6b50257ce19bJim Grosbach if (Operands[OpNo].isReg()) { 67262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands[OpNo].AddRegOperandToRegInfo(RegInfo); 67306801722a43c697eff0acee905de6b50257ce19bJim Grosbach // If the register operand is flagged as early, mark the operand as such 67406801722a43c697eff0acee905de6b50257ce19bJim Grosbach if (TID->getOperandConstraint(OpNo, TOI::EARLY_CLOBBER) != -1) 67506801722a43c697eff0acee905de6b50257ce19bJim Grosbach Operands[OpNo].setIsEarlyClobber(true); 67606801722a43c697eff0acee905de6b50257ce19bJim Grosbach } 67762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 67862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Re-add all the implicit ops. 67962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner for (unsigned i = OpNo+1, e = Operands.size(); i != e; ++i) { 680d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman assert(Operands[i].isReg() && "Should only be an implicit reg!"); 68162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands[i].AddRegOperandToRegInfo(RegInfo); 68262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 68362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } else { 68462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Otherwise, we will be reallocating the operand list. Remove all reg 68562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // operands from their list, then readd them after the operand list is 68662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // reallocated. 68762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner RemoveRegOperandsFromUseLists(); 68862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 68962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands.insert(Operands.begin()+OpNo, Op); 69062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands[OpNo].ParentMI = this; 69162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 69262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Re-add all the operands. 69362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner AddRegOperandsToUseLists(*RegInfo); 69406801722a43c697eff0acee905de6b50257ce19bJim Grosbach 69506801722a43c697eff0acee905de6b50257ce19bJim Grosbach // If the register operand is flagged as early, mark the operand as such 69606801722a43c697eff0acee905de6b50257ce19bJim Grosbach if (Operands[OpNo].isReg() 69706801722a43c697eff0acee905de6b50257ce19bJim Grosbach && TID->getOperandConstraint(OpNo, TOI::EARLY_CLOBBER) != -1) 69806801722a43c697eff0acee905de6b50257ce19bJim Grosbach Operands[OpNo].setIsEarlyClobber(true); 69962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 70062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner} 70162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 70262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// RemoveOperand - Erase an operand from an instruction, leaving it with one 70362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// fewer operand than it started with. 70462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// 70562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattnervoid MachineInstr::RemoveOperand(unsigned OpNo) { 70662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner assert(OpNo < Operands.size() && "Invalid operand number"); 70762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 70862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Special case removing the last one. 70962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (OpNo == Operands.size()-1) { 71062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // If needed, remove from the reg def/use list. 711d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (Operands.back().isReg() && Operands.back().isOnRegUseList()) 71262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands.back().RemoveRegOperandFromRegInfo(); 71362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 71462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands.pop_back(); 71562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner return; 71662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 71762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 71862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Otherwise, we are removing an interior operand. If we have reginfo to 71962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // update, remove all operands that will be shifted down from their reg lists, 72062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // move everything down, then re-add them. 72162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner MachineRegisterInfo *RegInfo = getRegInfo(); 72262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (RegInfo) { 72362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner for (unsigned i = OpNo, e = Operands.size(); i != e; ++i) { 724d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (Operands[i].isReg()) 72562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands[i].RemoveRegOperandFromRegInfo(); 72662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 72762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 72862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 72962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands.erase(Operands.begin()+OpNo); 73062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 73162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (RegInfo) { 73262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner for (unsigned i = OpNo, e = Operands.size(); i != e; ++i) { 733d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (Operands[i].isReg()) 73462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands[i].AddRegOperandToRegInfo(RegInfo); 73562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 73662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 73762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner} 73862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 739c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman/// addMemOperand - Add a MachineMemOperand to the machine instruction. 740c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman/// This function should be used only occasionally. The setMemRefs function 741c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman/// is the primary method for setting up a MachineInstr's MemRefs list. 7428e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohmanvoid MachineInstr::addMemOperand(MachineFunction &MF, 743c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman MachineMemOperand *MO) { 744c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman mmo_iterator OldMemRefs = MemRefs; 745c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman mmo_iterator OldMemRefsEnd = MemRefsEnd; 7468e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman 747c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman size_t NewNum = (MemRefsEnd - MemRefs) + 1; 748c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman mmo_iterator NewMemRefs = MF.allocateMemRefsArray(NewNum); 749c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman mmo_iterator NewMemRefsEnd = NewMemRefs + NewNum; 7508e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman 751c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman std::copy(OldMemRefs, OldMemRefsEnd, NewMemRefs); 752c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman NewMemRefs[NewNum - 1] = MO; 753c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman 754c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman MemRefs = NewMemRefs; 755c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman MemRefsEnd = NewMemRefsEnd; 756c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman} 75762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 758506049f29f4f202a8e45feb916cc0264440a7f6dEvan Chengbool MachineInstr::isIdenticalTo(const MachineInstr *Other, 759506049f29f4f202a8e45feb916cc0264440a7f6dEvan Cheng MICheckType Check) const { 76034cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng // If opcodes or number of operands are not the same then the two 76134cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng // instructions are obviously not identical. 76234cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng if (Other->getOpcode() != getOpcode() || 76334cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng Other->getNumOperands() != getNumOperands()) 76434cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng return false; 76534cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng 76634cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng // Check operands to make sure they match. 76734cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 76834cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng const MachineOperand &MO = getOperand(i); 76934cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng const MachineOperand &OMO = Other->getOperand(i); 770cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng if (!MO.isReg()) { 771cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng if (!MO.isIdenticalTo(OMO)) 772cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng return false; 773cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng continue; 774cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng } 775cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng 77634cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng // Clients may or may not want to ignore defs when testing for equality. 77734cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng // For example, machine CSE pass only cares about finding common 77834cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng // subexpressions, so it's safe to ignore virtual register defs. 779cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng if (MO.isDef()) { 78034cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng if (Check == IgnoreDefs) 78134cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng continue; 782cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng else if (Check == IgnoreVRegDefs) { 783cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng if (TargetRegisterInfo::isPhysicalRegister(MO.getReg()) || 784cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng TargetRegisterInfo::isPhysicalRegister(OMO.getReg())) 785cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng if (MO.getReg() != OMO.getReg()) 786cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng return false; 787cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng } else { 788cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng if (!MO.isIdenticalTo(OMO)) 789cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng return false; 790cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng if (Check == CheckKillDead && MO.isDead() != OMO.isDead()) 79134cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng return false; 792cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng } 793cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng } else { 794cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng if (!MO.isIdenticalTo(OMO)) 795cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng return false; 796cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng if (Check == CheckKillDead && MO.isKill() != OMO.isKill()) 797cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng return false; 798cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng } 79934cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng } 80034cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng return true; 801506049f29f4f202a8e45feb916cc0264440a7f6dEvan Cheng} 802506049f29f4f202a8e45feb916cc0264440a7f6dEvan Cheng 80348d7c069c76882475c23de153bda9483cd3c9bb4Chris Lattner/// removeFromParent - This method unlinks 'this' from the containing basic 80448d7c069c76882475c23de153bda9483cd3c9bb4Chris Lattner/// block, and returns it, but does not delete it. 80548d7c069c76882475c23de153bda9483cd3c9bb4Chris LattnerMachineInstr *MachineInstr::removeFromParent() { 80648d7c069c76882475c23de153bda9483cd3c9bb4Chris Lattner assert(getParent() && "Not embedded in a basic block!"); 80748d7c069c76882475c23de153bda9483cd3c9bb4Chris Lattner getParent()->remove(this); 80848d7c069c76882475c23de153bda9483cd3c9bb4Chris Lattner return this; 80948d7c069c76882475c23de153bda9483cd3c9bb4Chris Lattner} 81048d7c069c76882475c23de153bda9483cd3c9bb4Chris Lattner 81148d7c069c76882475c23de153bda9483cd3c9bb4Chris Lattner 8128e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman/// eraseFromParent - This method unlinks 'this' from the containing basic 8138e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman/// block, and deletes it. 8148e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohmanvoid MachineInstr::eraseFromParent() { 8158e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman assert(getParent() && "Not embedded in a basic block!"); 8168e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman getParent()->erase(this); 8178e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman} 8188e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman 8198e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman 82021326fc2ad47ee7e73a8c0b03a4a0cc0b0a0c4e8Brian Gaeke/// OperandComplete - Return true if it's illegal to add a new operand 82121326fc2ad47ee7e73a8c0b03a4a0cc0b0a0c4e8Brian Gaeke/// 8222a90ba60175f93e7438165d8423100aa573c16c5Chris Lattnerbool MachineInstr::OperandsComplete() const { 823349c4952009525b27383e2120a6b3c998f39bd09Chris Lattner unsigned short NumOperands = TID->getNumOperands(); 8248f707e15fbd09ca948b86419bcb0c92470827ac9Chris Lattner if (!TID->isVariadic() && getNumOperands()-NumImplicitOps >= NumOperands) 8253497782f3843007de3be0c43e3ff206a01e2ccacVikram S. Adve return true; // Broken: we have all the operands of this instruction! 826413746e9833d97a8b463ef6a788aa326cf3829a2Chris Lattner return false; 82770bc4b5d1a3795a8f41be96723cfcbccac8e1671Vikram S. Adve} 82870bc4b5d1a3795a8f41be96723cfcbccac8e1671Vikram S. Adve 82919e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng/// getNumExplicitOperands - Returns the number of non-implicit operands. 83019e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng/// 83119e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Chengunsigned MachineInstr::getNumExplicitOperands() const { 832349c4952009525b27383e2120a6b3c998f39bd09Chris Lattner unsigned NumOperands = TID->getNumOperands(); 8338f707e15fbd09ca948b86419bcb0c92470827ac9Chris Lattner if (!TID->isVariadic()) 83419e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng return NumOperands; 83519e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng 8369407cd4ede3e2c090b958778d0fdbdac8b2dbec4Dan Gohman for (unsigned i = NumOperands, e = getNumOperands(); i != e; ++i) { 8379407cd4ede3e2c090b958778d0fdbdac8b2dbec4Dan Gohman const MachineOperand &MO = getOperand(i); 838d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (!MO.isReg() || !MO.isImplicit()) 83919e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng NumOperands++; 84019e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng } 84119e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng return NumOperands; 84219e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng} 84319e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng 844c36b7069b42bece963b7e6adf020353ce990ef76Evan Chengbool MachineInstr::isStackAligningInlineAsm() const { 845c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng if (isInlineAsm()) { 846c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng unsigned ExtraInfo = getOperand(InlineAsm::MIOp_ExtraInfo).getImm(); 847c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng if (ExtraInfo & InlineAsm::Extra_IsAlignStack) 848c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng return true; 849c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng } 850c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng return false; 851c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng} 8528ace2cd034be10c09be51daf08c3dda327f54262Chris Lattner 853faa510726f4b40aa4495e60e4d341c6467e3fb01Evan Cheng/// findRegisterUseOperandIdx() - Returns the MachineOperand that is a use of 854f9ca50e3dce88b2f9e2f2f0cac2d3ed78afda841Jim Grosbach/// the specific register or -1 if it is not found. It further tightens 85576d7e76c15c258ec4a71fd75a2a32bca3a5e5e27Evan Cheng/// the search criteria to a use that kills the register if isKill is true. 8566130f66eaae89f8878590796977678afa8448926Evan Chengint MachineInstr::findRegisterUseOperandIdx(unsigned Reg, bool isKill, 8576130f66eaae89f8878590796977678afa8448926Evan Cheng const TargetRegisterInfo *TRI) const { 858576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 859f277ee4be7edabb759a7f78138b693d72d0c263fEvan Cheng const MachineOperand &MO = getOperand(i); 860d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (!MO.isReg() || !MO.isUse()) 8616130f66eaae89f8878590796977678afa8448926Evan Cheng continue; 8626130f66eaae89f8878590796977678afa8448926Evan Cheng unsigned MOReg = MO.getReg(); 8636130f66eaae89f8878590796977678afa8448926Evan Cheng if (!MOReg) 8646130f66eaae89f8878590796977678afa8448926Evan Cheng continue; 8656130f66eaae89f8878590796977678afa8448926Evan Cheng if (MOReg == Reg || 8666130f66eaae89f8878590796977678afa8448926Evan Cheng (TRI && 8676130f66eaae89f8878590796977678afa8448926Evan Cheng TargetRegisterInfo::isPhysicalRegister(MOReg) && 8686130f66eaae89f8878590796977678afa8448926Evan Cheng TargetRegisterInfo::isPhysicalRegister(Reg) && 8696130f66eaae89f8878590796977678afa8448926Evan Cheng TRI->isSubRegister(MOReg, Reg))) 87076d7e76c15c258ec4a71fd75a2a32bca3a5e5e27Evan Cheng if (!isKill || MO.isKill()) 87132eb1f1ca4220d2f24916e587ad7e8574d7d82a1Evan Cheng return i; 872b371f457b0ea4a652a9f526ba4375c80ae542252Evan Cheng } 87332eb1f1ca4220d2f24916e587ad7e8574d7d82a1Evan Cheng return -1; 874b371f457b0ea4a652a9f526ba4375c80ae542252Evan Cheng} 8757ebc4d63db05ac214d36bc01b4d60adadaf923e5Jakob Stoklund Olesen 87618b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesen/// readsWritesVirtualRegister - Return a pair of bools (reads, writes) 87718b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesen/// indicating if this instruction reads or writes Reg. This also considers 87818b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesen/// partial defines. 87918b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesenstd::pair<bool,bool> 88018b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund OlesenMachineInstr::readsWritesVirtualRegister(unsigned Reg, 88118b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesen SmallVectorImpl<unsigned> *Ops) const { 88218b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesen bool PartDef = false; // Partial redefine. 88318b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesen bool FullDef = false; // Full define. 88418b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesen bool Use = false; 8857ebc4d63db05ac214d36bc01b4d60adadaf923e5Jakob Stoklund Olesen 8867ebc4d63db05ac214d36bc01b4d60adadaf923e5Jakob Stoklund Olesen for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 8877ebc4d63db05ac214d36bc01b4d60adadaf923e5Jakob Stoklund Olesen const MachineOperand &MO = getOperand(i); 8887ebc4d63db05ac214d36bc01b4d60adadaf923e5Jakob Stoklund Olesen if (!MO.isReg() || MO.getReg() != Reg) 8897ebc4d63db05ac214d36bc01b4d60adadaf923e5Jakob Stoklund Olesen continue; 89018b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesen if (Ops) 89118b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesen Ops->push_back(i); 8927ebc4d63db05ac214d36bc01b4d60adadaf923e5Jakob Stoklund Olesen if (MO.isUse()) 89318b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesen Use |= !MO.isUndef(); 89418b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesen else if (MO.getSubReg()) 8957ebc4d63db05ac214d36bc01b4d60adadaf923e5Jakob Stoklund Olesen PartDef = true; 8967ebc4d63db05ac214d36bc01b4d60adadaf923e5Jakob Stoklund Olesen else 8977ebc4d63db05ac214d36bc01b4d60adadaf923e5Jakob Stoklund Olesen FullDef = true; 8987ebc4d63db05ac214d36bc01b4d60adadaf923e5Jakob Stoklund Olesen } 89918b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesen // A partial redefine uses Reg unless there is also a full define. 90018b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesen return std::make_pair(Use || (PartDef && !FullDef), PartDef || FullDef); 9017ebc4d63db05ac214d36bc01b4d60adadaf923e5Jakob Stoklund Olesen} 9027ebc4d63db05ac214d36bc01b4d60adadaf923e5Jakob Stoklund Olesen 9036130f66eaae89f8878590796977678afa8448926Evan Cheng/// findRegisterDefOperandIdx() - Returns the operand index that is a def of 904703bfe69092e8da79fbef2fc5ca07b805ad9f753Dan Gohman/// the specified register or -1 if it is not found. If isDead is true, defs 905703bfe69092e8da79fbef2fc5ca07b805ad9f753Dan Gohman/// that are not dead are skipped. If TargetRegisterInfo is non-null, then it 906703bfe69092e8da79fbef2fc5ca07b805ad9f753Dan Gohman/// also checks if there is a def of a super-register. 9071015ba7018c87f48cc7bb45a564eb4a27241e76aEvan Chengint 9081015ba7018c87f48cc7bb45a564eb4a27241e76aEvan ChengMachineInstr::findRegisterDefOperandIdx(unsigned Reg, bool isDead, bool Overlap, 9091015ba7018c87f48cc7bb45a564eb4a27241e76aEvan Cheng const TargetRegisterInfo *TRI) const { 9101015ba7018c87f48cc7bb45a564eb4a27241e76aEvan Cheng bool isPhys = TargetRegisterInfo::isPhysicalRegister(Reg); 911b371f457b0ea4a652a9f526ba4375c80ae542252Evan Cheng for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 9126130f66eaae89f8878590796977678afa8448926Evan Cheng const MachineOperand &MO = getOperand(i); 913d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (!MO.isReg() || !MO.isDef()) 9146130f66eaae89f8878590796977678afa8448926Evan Cheng continue; 9156130f66eaae89f8878590796977678afa8448926Evan Cheng unsigned MOReg = MO.getReg(); 9161015ba7018c87f48cc7bb45a564eb4a27241e76aEvan Cheng bool Found = (MOReg == Reg); 9171015ba7018c87f48cc7bb45a564eb4a27241e76aEvan Cheng if (!Found && TRI && isPhys && 9181015ba7018c87f48cc7bb45a564eb4a27241e76aEvan Cheng TargetRegisterInfo::isPhysicalRegister(MOReg)) { 9191015ba7018c87f48cc7bb45a564eb4a27241e76aEvan Cheng if (Overlap) 9201015ba7018c87f48cc7bb45a564eb4a27241e76aEvan Cheng Found = TRI->regsOverlap(MOReg, Reg); 9211015ba7018c87f48cc7bb45a564eb4a27241e76aEvan Cheng else 9221015ba7018c87f48cc7bb45a564eb4a27241e76aEvan Cheng Found = TRI->isSubRegister(MOReg, Reg); 9231015ba7018c87f48cc7bb45a564eb4a27241e76aEvan Cheng } 9241015ba7018c87f48cc7bb45a564eb4a27241e76aEvan Cheng if (Found && (!isDead || MO.isDead())) 9251015ba7018c87f48cc7bb45a564eb4a27241e76aEvan Cheng return i; 926576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng } 9276130f66eaae89f8878590796977678afa8448926Evan Cheng return -1; 928576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng} 92919e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng 930f277ee4be7edabb759a7f78138b693d72d0c263fEvan Cheng/// findFirstPredOperandIdx() - Find the index of the first operand in the 931f277ee4be7edabb759a7f78138b693d72d0c263fEvan Cheng/// operand list that is used to represent the predicate. It returns -1 if 932f277ee4be7edabb759a7f78138b693d72d0c263fEvan Cheng/// none is found. 933f277ee4be7edabb759a7f78138b693d72d0c263fEvan Chengint MachineInstr::findFirstPredOperandIdx() const { 934749c6f6b5ed301c84aac562e414486549d7b98ebChris Lattner const TargetInstrDesc &TID = getDesc(); 935749c6f6b5ed301c84aac562e414486549d7b98ebChris Lattner if (TID.isPredicable()) { 93619e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng for (unsigned i = 0, e = getNumOperands(); i != e; ++i) 937749c6f6b5ed301c84aac562e414486549d7b98ebChris Lattner if (TID.OpInfo[i].isPredicate()) 938f277ee4be7edabb759a7f78138b693d72d0c263fEvan Cheng return i; 93919e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng } 94019e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng 941f277ee4be7edabb759a7f78138b693d72d0c263fEvan Cheng return -1; 94219e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng} 943576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng 944d9df5017040489303acb57bdd8697ef0f8bafc08Bob Wilson/// isRegTiedToUseOperand - Given the index of a register def operand, 945d9df5017040489303acb57bdd8697ef0f8bafc08Bob Wilson/// check if the register def is tied to a source operand, due to either 946d9df5017040489303acb57bdd8697ef0f8bafc08Bob Wilson/// two-address elimination or inline assembly constraints. Returns the 947d9df5017040489303acb57bdd8697ef0f8bafc08Bob Wilson/// first tied use operand index by reference is UseOpIdx is not null. 948ce9be2cf5dc84865f6b819bd3f9be16944426268Jakob Stoklund Olesenbool MachineInstr:: 949ce9be2cf5dc84865f6b819bd3f9be16944426268Jakob Stoklund OlesenisRegTiedToUseOperand(unsigned DefOpIdx, unsigned *UseOpIdx) const { 950518bb53485df640d7b7e3f6b0544099020c42aa7Chris Lattner if (isInlineAsm()) { 951c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng assert(DefOpIdx > InlineAsm::MIOp_FirstOperand); 952d9df5017040489303acb57bdd8697ef0f8bafc08Bob Wilson const MachineOperand &MO = getOperand(DefOpIdx); 953c30aa7b3de0ce8c37e9630e8e7a73cb83c808c62Chris Lattner if (!MO.isReg() || !MO.isDef() || MO.getReg() == 0) 954fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng return false; 955ef5d070bbe55d7165fc84778ca7757c3cfeea491Evan Cheng // Determine the actual operand index that corresponds to this index. 956fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng unsigned DefNo = 0; 957ef5d070bbe55d7165fc84778ca7757c3cfeea491Evan Cheng unsigned DefPart = 0; 958c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng for (unsigned i = InlineAsm::MIOp_FirstOperand, e = getNumOperands(); 959c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng i < e; ) { 960fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng const MachineOperand &FMO = getOperand(i); 96145d34fe35846eed7019bdc2f7814025302849e0cJakob Stoklund Olesen // After the normal asm operands there may be additional imp-def regs. 96245d34fe35846eed7019bdc2f7814025302849e0cJakob Stoklund Olesen if (!FMO.isImm()) 96345d34fe35846eed7019bdc2f7814025302849e0cJakob Stoklund Olesen return false; 964fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng // Skip over this def. 965ef5d070bbe55d7165fc84778ca7757c3cfeea491Evan Cheng unsigned NumOps = InlineAsm::getNumOperandRegisters(FMO.getImm()); 966ef5d070bbe55d7165fc84778ca7757c3cfeea491Evan Cheng unsigned PrevDef = i + 1; 967ef5d070bbe55d7165fc84778ca7757c3cfeea491Evan Cheng i = PrevDef + NumOps; 968ef5d070bbe55d7165fc84778ca7757c3cfeea491Evan Cheng if (i > DefOpIdx) { 969ef5d070bbe55d7165fc84778ca7757c3cfeea491Evan Cheng DefPart = DefOpIdx - PrevDef; 970fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng break; 971ef5d070bbe55d7165fc84778ca7757c3cfeea491Evan Cheng } 972fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng ++DefNo; 973fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng } 974c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng for (unsigned i = InlineAsm::MIOp_FirstOperand, e = getNumOperands(); 975c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng i != e; ++i) { 976fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng const MachineOperand &FMO = getOperand(i); 977fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng if (!FMO.isImm()) 978fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng continue; 979fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng if (i+1 >= e || !getOperand(i+1).isReg() || !getOperand(i+1).isUse()) 980fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng continue; 981fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng unsigned Idx; 982ef5d070bbe55d7165fc84778ca7757c3cfeea491Evan Cheng if (InlineAsm::isUseOperandTiedToDef(FMO.getImm(), Idx) && 983d9df5017040489303acb57bdd8697ef0f8bafc08Bob Wilson Idx == DefNo) { 984d9df5017040489303acb57bdd8697ef0f8bafc08Bob Wilson if (UseOpIdx) 985ef5d070bbe55d7165fc84778ca7757c3cfeea491Evan Cheng *UseOpIdx = (unsigned)i + 1 + DefPart; 986fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng return true; 987d9df5017040489303acb57bdd8697ef0f8bafc08Bob Wilson } 988fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng } 989ef5d070bbe55d7165fc84778ca7757c3cfeea491Evan Cheng return false; 990fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng } 991fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng 992d9df5017040489303acb57bdd8697ef0f8bafc08Bob Wilson assert(getOperand(DefOpIdx).isDef() && "DefOpIdx is not a def!"); 993749c6f6b5ed301c84aac562e414486549d7b98ebChris Lattner const TargetInstrDesc &TID = getDesc(); 994ef0732d25a9882c947984ae3f2afbef5463ba00fEvan Cheng for (unsigned i = 0, e = TID.getNumOperands(); i != e; ++i) { 995ef0732d25a9882c947984ae3f2afbef5463ba00fEvan Cheng const MachineOperand &MO = getOperand(i); 9962ce7f2068f13566f5a70ee779e3bb83a6cb8d942Dan Gohman if (MO.isReg() && MO.isUse() && 997d9df5017040489303acb57bdd8697ef0f8bafc08Bob Wilson TID.getOperandConstraint(i, TOI::TIED_TO) == (int)DefOpIdx) { 998d9df5017040489303acb57bdd8697ef0f8bafc08Bob Wilson if (UseOpIdx) 999d9df5017040489303acb57bdd8697ef0f8bafc08Bob Wilson *UseOpIdx = (unsigned)i; 1000ef0732d25a9882c947984ae3f2afbef5463ba00fEvan Cheng return true; 1001d9df5017040489303acb57bdd8697ef0f8bafc08Bob Wilson } 100232dfbeada7292167bb488f36a71a5a6a519ddaffEvan Cheng } 100332dfbeada7292167bb488f36a71a5a6a519ddaffEvan Cheng return false; 100432dfbeada7292167bb488f36a71a5a6a519ddaffEvan Cheng} 100532dfbeada7292167bb488f36a71a5a6a519ddaffEvan Cheng 1006a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng/// isRegTiedToDefOperand - Return true if the operand of the specified index 1007a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng/// is a register use and it is tied to an def operand. It also returns the def 1008a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng/// operand index by reference. 1009ce9be2cf5dc84865f6b819bd3f9be16944426268Jakob Stoklund Olesenbool MachineInstr:: 1010ce9be2cf5dc84865f6b819bd3f9be16944426268Jakob Stoklund OlesenisRegTiedToDefOperand(unsigned UseOpIdx, unsigned *DefOpIdx) const { 1011518bb53485df640d7b7e3f6b0544099020c42aa7Chris Lattner if (isInlineAsm()) { 1012fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng const MachineOperand &MO = getOperand(UseOpIdx); 10130c8382ce9a96e36325b17d242fd1af16564d8a85Chris Lattner if (!MO.isReg() || !MO.isUse() || MO.getReg() == 0) 1014fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng return false; 101557e599a46b7b1321f9af02d1cecb4fa6b34f8a52Jakob Stoklund Olesen 101657e599a46b7b1321f9af02d1cecb4fa6b34f8a52Jakob Stoklund Olesen // Find the flag operand corresponding to UseOpIdx 101757e599a46b7b1321f9af02d1cecb4fa6b34f8a52Jakob Stoklund Olesen unsigned FlagIdx, NumOps=0; 1018c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng for (FlagIdx = InlineAsm::MIOp_FirstOperand; 1019c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng FlagIdx < UseOpIdx; FlagIdx += NumOps+1) { 102057e599a46b7b1321f9af02d1cecb4fa6b34f8a52Jakob Stoklund Olesen const MachineOperand &UFMO = getOperand(FlagIdx); 102145d34fe35846eed7019bdc2f7814025302849e0cJakob Stoklund Olesen // After the normal asm operands there may be additional imp-def regs. 102245d34fe35846eed7019bdc2f7814025302849e0cJakob Stoklund Olesen if (!UFMO.isImm()) 102345d34fe35846eed7019bdc2f7814025302849e0cJakob Stoklund Olesen return false; 102457e599a46b7b1321f9af02d1cecb4fa6b34f8a52Jakob Stoklund Olesen NumOps = InlineAsm::getNumOperandRegisters(UFMO.getImm()); 102557e599a46b7b1321f9af02d1cecb4fa6b34f8a52Jakob Stoklund Olesen assert(NumOps < getNumOperands() && "Invalid inline asm flag"); 102657e599a46b7b1321f9af02d1cecb4fa6b34f8a52Jakob Stoklund Olesen if (UseOpIdx < FlagIdx+NumOps+1) 102757e599a46b7b1321f9af02d1cecb4fa6b34f8a52Jakob Stoklund Olesen break; 1028ef5d070bbe55d7165fc84778ca7757c3cfeea491Evan Cheng } 102957e599a46b7b1321f9af02d1cecb4fa6b34f8a52Jakob Stoklund Olesen if (FlagIdx >= UseOpIdx) 1030ef5d070bbe55d7165fc84778ca7757c3cfeea491Evan Cheng return false; 103157e599a46b7b1321f9af02d1cecb4fa6b34f8a52Jakob Stoklund Olesen const MachineOperand &UFMO = getOperand(FlagIdx); 1032fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng unsigned DefNo; 1033fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng if (InlineAsm::isUseOperandTiedToDef(UFMO.getImm(), DefNo)) { 1034fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng if (!DefOpIdx) 1035fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng return true; 1036fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng 1037c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng unsigned DefIdx = InlineAsm::MIOp_FirstOperand; 1038f1e309eb4862459a76445942ba4dafc433b6f317Dale Johannesen // Remember to adjust the index. First operand is asm string, second is 1039c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng // the HasSideEffects and AlignStack bits, then there is a flag for each. 1040fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng while (DefNo) { 1041fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng const MachineOperand &FMO = getOperand(DefIdx); 1042fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng assert(FMO.isImm()); 1043fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng // Skip over this def. 1044fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng DefIdx += InlineAsm::getNumOperandRegisters(FMO.getImm()) + 1; 1045fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng --DefNo; 1046fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng } 1047ef5d070bbe55d7165fc84778ca7757c3cfeea491Evan Cheng *DefOpIdx = DefIdx + UseOpIdx - FlagIdx; 1048fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng return true; 1049fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng } 1050fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng return false; 1051fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng } 1052fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng 1053a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng const TargetInstrDesc &TID = getDesc(); 1054a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng if (UseOpIdx >= TID.getNumOperands()) 1055a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng return false; 1056a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng const MachineOperand &MO = getOperand(UseOpIdx); 1057a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng if (!MO.isReg() || !MO.isUse()) 1058a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng return false; 1059a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng int DefIdx = TID.getOperandConstraint(UseOpIdx, TOI::TIED_TO); 1060a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng if (DefIdx == -1) 1061a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng return false; 1062a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng if (DefOpIdx) 1063a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng *DefOpIdx = (unsigned)DefIdx; 1064a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng return true; 1065a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng} 1066a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng 1067e6cd757e6800b9b94a6459ec148c0624c4f2e3c1Dan Gohman/// clearKillInfo - Clears kill flags on all operands. 1068e6cd757e6800b9b94a6459ec148c0624c4f2e3c1Dan Gohman/// 1069e6cd757e6800b9b94a6459ec148c0624c4f2e3c1Dan Gohmanvoid MachineInstr::clearKillInfo() { 1070e6cd757e6800b9b94a6459ec148c0624c4f2e3c1Dan Gohman for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 1071e6cd757e6800b9b94a6459ec148c0624c4f2e3c1Dan Gohman MachineOperand &MO = getOperand(i); 1072e6cd757e6800b9b94a6459ec148c0624c4f2e3c1Dan Gohman if (MO.isReg() && MO.isUse()) 1073e6cd757e6800b9b94a6459ec148c0624c4f2e3c1Dan Gohman MO.setIsKill(false); 1074e6cd757e6800b9b94a6459ec148c0624c4f2e3c1Dan Gohman } 1075e6cd757e6800b9b94a6459ec148c0624c4f2e3c1Dan Gohman} 1076e6cd757e6800b9b94a6459ec148c0624c4f2e3c1Dan Gohman 1077576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng/// copyKillDeadInfo - Copies kill / dead operand properties from MI. 1078576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng/// 1079576d123e130a8291669dd2384a3735cc4933fd00Evan Chengvoid MachineInstr::copyKillDeadInfo(const MachineInstr *MI) { 1080576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng for (unsigned i = 0, e = MI->getNumOperands(); i != e; ++i) { 1081576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng const MachineOperand &MO = MI->getOperand(i); 1082d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (!MO.isReg() || (!MO.isKill() && !MO.isDead())) 1083576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng continue; 1084576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng for (unsigned j = 0, ee = getNumOperands(); j != ee; ++j) { 1085576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng MachineOperand &MOp = getOperand(j); 1086576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng if (!MOp.isIdenticalTo(MO)) 1087576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng continue; 1088576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng if (MO.isKill()) 1089576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng MOp.setIsKill(); 1090576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng else 1091576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng MOp.setIsDead(); 1092576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng break; 1093576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng } 1094576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng } 1095576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng} 1096576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng 109719e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng/// copyPredicates - Copies predicate operand(s) from MI. 109819e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Chengvoid MachineInstr::copyPredicates(const MachineInstr *MI) { 1099749c6f6b5ed301c84aac562e414486549d7b98ebChris Lattner const TargetInstrDesc &TID = MI->getDesc(); 1100b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng if (!TID.isPredicable()) 1101b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng return; 1102b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng for (unsigned i = 0, e = MI->getNumOperands(); i != e; ++i) { 1103b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng if (TID.OpInfo[i].isPredicate()) { 1104b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng // Predicated operands must be last operands. 1105b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng addOperand(MI->getOperand(i)); 110619e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng } 110719e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng } 110819e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng} 110919e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng 11109edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesenvoid MachineInstr::substituteRegister(unsigned FromReg, 11119edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen unsigned ToReg, 11129edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen unsigned SubIdx, 11139edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen const TargetRegisterInfo &RegInfo) { 11149edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen if (TargetRegisterInfo::isPhysicalRegister(ToReg)) { 11159edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen if (SubIdx) 11169edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen ToReg = RegInfo.getSubReg(ToReg, SubIdx); 11179edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 11189edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen MachineOperand &MO = getOperand(i); 11199edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen if (!MO.isReg() || MO.getReg() != FromReg) 11209edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen continue; 11219edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen MO.substPhysReg(ToReg, RegInfo); 11229edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen } 11239edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen } else { 11249edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 11259edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen MachineOperand &MO = getOperand(i); 11269edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen if (!MO.isReg() || MO.getReg() != FromReg) 11279edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen continue; 11289edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen MO.substVirtReg(ToReg, SubIdx, RegInfo); 11299edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen } 11309edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen } 11319edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen} 11329edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen 11339f1c8317a4676945b4961ddb9827ef2412551620Evan Cheng/// isSafeToMove - Return true if it is safe to move this instruction. If 11349f1c8317a4676945b4961ddb9827ef2412551620Evan Cheng/// SawStore is set to true, it means that there is a store (or call) between 11359f1c8317a4676945b4961ddb9827ef2412551620Evan Cheng/// the instruction's location and its intended destination. 1136b3b930a011554fc7566dd4311af3862b01e5fd8fDan Gohmanbool MachineInstr::isSafeToMove(const TargetInstrInfo *TII, 1137ac1abde05b7e6956c01deb6557539bee8fea30f4Evan Cheng AliasAnalysis *AA, 1138ac1abde05b7e6956c01deb6557539bee8fea30f4Evan Cheng bool &SawStore) const { 1139b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng // Ignore stuff that we obviously can't move. 1140b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng if (TID->mayStore() || TID->isCall()) { 1141b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng SawStore = true; 1142b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng return false; 1143b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng } 114430a343aeedf777f9b8b6be9823da750afbf765b1Evan Cheng 114530a343aeedf777f9b8b6be9823da750afbf765b1Evan Cheng if (isLabel() || isDebugValue() || 1146c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng TID->isTerminator() || hasUnmodeledSideEffects()) 1147b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng return false; 1148b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng 1149b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng // See if this instruction does a load. If so, we have to guarantee that the 1150b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng // loaded value doesn't change between the load and the its intended 1151b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng // destination. The check for isInvariantLoad gives the targe the chance to 1152b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng // classify the load as always returning a constant, e.g. a constant pool 1153b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng // load. 1154a70dca156fa76d452f54829b5c5f962ddfd94ef2Dan Gohman if (TID->mayLoad() && !isInvariantLoad(AA)) 1155b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng // Otherwise, this is a real load. If there is a store between the load and 11567cc2c406d0c82bcf329048ced643ec77fcae60e6Evan Cheng // end of block, or if the load is volatile, we can't move it. 1157d790a5ceee7138d8a5352432ccf862a42e3f5819Dan Gohman return !SawStore && !hasVolatileMemoryRef(); 11583e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman 1159b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng return true; 1160b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng} 1161b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng 1162df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng/// isSafeToReMat - Return true if it's safe to rematerialize the specified 1163df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng/// instruction which defined the specified register instead of copying it. 1164b3b930a011554fc7566dd4311af3862b01e5fd8fDan Gohmanbool MachineInstr::isSafeToReMat(const TargetInstrInfo *TII, 1165ac1abde05b7e6956c01deb6557539bee8fea30f4Evan Cheng AliasAnalysis *AA, 1166ac1abde05b7e6956c01deb6557539bee8fea30f4Evan Cheng unsigned DstReg) const { 1167df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng bool SawStore = false; 1168a70dca156fa76d452f54829b5c5f962ddfd94ef2Dan Gohman if (!TII->isTriviallyReMaterializable(this, AA) || 1169ac1abde05b7e6956c01deb6557539bee8fea30f4Evan Cheng !isSafeToMove(TII, AA, SawStore)) 1170df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng return false; 1171df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 1172cbad42cfd1cc93a41ff26ea2e8895bfbc09f54f2Dan Gohman const MachineOperand &MO = getOperand(i); 1173d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (!MO.isReg()) 1174df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng continue; 1175df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng // FIXME: For now, do not remat any instruction with register operands. 1176df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng // Later on, we can loosen the restriction is the register operands have 1177df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng // not been modified between the def and use. Note, this is different from 11788763c1c54413c9cd0b56e2860edb5856151a69fcEvan Cheng // MachineSink because the code is no longer in two-address form (at least 1179df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng // partially). 1180df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng if (MO.isUse()) 1181df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng return false; 1182df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng else if (!MO.isDead() && MO.getReg() != DstReg) 1183df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng return false; 1184df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng } 1185df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng return true; 1186df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng} 1187df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng 11883e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman/// hasVolatileMemoryRef - Return true if this instruction may have a 11893e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman/// volatile memory reference, or if the information describing the 11903e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman/// memory reference is not available. Return false if it is known to 11913e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman/// have no volatile memory references. 11923e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohmanbool MachineInstr::hasVolatileMemoryRef() const { 11933e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman // An instruction known never to access memory won't have a volatile access. 11943e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman if (!TID->mayStore() && 11953e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman !TID->mayLoad() && 11963e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman !TID->isCall() && 1197c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng !hasUnmodeledSideEffects()) 11983e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman return false; 11993e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman 12003e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman // Otherwise, if the instruction has no memory reference information, 12013e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman // conservatively assume it wasn't preserved. 12023e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman if (memoperands_empty()) 12033e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman return true; 12043e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman 12053e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman // Check the memory reference information for volatile references. 1206c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman for (mmo_iterator I = memoperands_begin(), E = memoperands_end(); I != E; ++I) 1207c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman if ((*I)->isVolatile()) 12083e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman return true; 12093e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman 12103e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman return false; 12113e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman} 12123e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman 1213e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman/// isInvariantLoad - Return true if this instruction is loading from a 1214e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman/// location whose value is invariant across the function. For example, 1215f451cb870efcf9e0302d25ed05f4cac6bb494e42Dan Gohman/// loading a value from the constant pool or from the argument area 1216e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman/// of a function if it does not change. This should only return true of 1217e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman/// *all* loads the instruction does are invariant (if it does multiple loads). 1218e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohmanbool MachineInstr::isInvariantLoad(AliasAnalysis *AA) const { 1219e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman // If the instruction doesn't load at all, it isn't an invariant load. 1220e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman if (!TID->mayLoad()) 1221e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman return false; 1222e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman 1223e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman // If the instruction has lost its memoperands, conservatively assume that 1224e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman // it may not be an invariant load. 1225e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman if (memoperands_empty()) 1226e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman return false; 1227e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman 1228e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman const MachineFrameInfo *MFI = getParent()->getParent()->getFrameInfo(); 1229e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman 1230e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman for (mmo_iterator I = memoperands_begin(), 1231e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman E = memoperands_end(); I != E; ++I) { 1232e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman if ((*I)->isVolatile()) return false; 1233e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman if ((*I)->isStore()) return false; 1234e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman 1235e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman if (const Value *V = (*I)->getValue()) { 1236e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman // A load from a constant PseudoSourceValue is invariant. 1237e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman if (const PseudoSourceValue *PSV = dyn_cast<PseudoSourceValue>(V)) 1238e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman if (PSV->isConstant(MFI)) 1239e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman continue; 1240e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman // If we have an AliasAnalysis, ask it whether the memory is constant. 1241f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman if (AA && AA->pointsToConstantMemory( 1242f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman AliasAnalysis::Location(V, (*I)->getSize(), 1243f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman (*I)->getTBAAInfo()))) 1244e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman continue; 1245e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman } 1246e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman 1247e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman // Otherwise assume conservatively. 1248e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman return false; 1249e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman } 1250e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman 1251e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman // Everything checks out. 1252e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman return true; 1253e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman} 1254e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman 1255229694f0ee630ceabe96a8bd48952f6740f928b2Evan Cheng/// isConstantValuePHI - If the specified instruction is a PHI that always 1256229694f0ee630ceabe96a8bd48952f6740f928b2Evan Cheng/// merges together the same virtual register, return the register, otherwise 1257229694f0ee630ceabe96a8bd48952f6740f928b2Evan Cheng/// return 0. 1258229694f0ee630ceabe96a8bd48952f6740f928b2Evan Chengunsigned MachineInstr::isConstantValuePHI() const { 1259518bb53485df640d7b7e3f6b0544099020c42aa7Chris Lattner if (!isPHI()) 1260229694f0ee630ceabe96a8bd48952f6740f928b2Evan Cheng return 0; 1261d8f079c25e8bcaf4d10bfa9c3f6a38cd5ac84329Evan Cheng assert(getNumOperands() >= 3 && 1262d8f079c25e8bcaf4d10bfa9c3f6a38cd5ac84329Evan Cheng "It's illegal to have a PHI without source operands"); 1263229694f0ee630ceabe96a8bd48952f6740f928b2Evan Cheng 1264229694f0ee630ceabe96a8bd48952f6740f928b2Evan Cheng unsigned Reg = getOperand(1).getReg(); 1265229694f0ee630ceabe96a8bd48952f6740f928b2Evan Cheng for (unsigned i = 3, e = getNumOperands(); i < e; i += 2) 1266229694f0ee630ceabe96a8bd48952f6740f928b2Evan Cheng if (getOperand(i).getReg() != Reg) 1267229694f0ee630ceabe96a8bd48952f6740f928b2Evan Cheng return 0; 1268229694f0ee630ceabe96a8bd48952f6740f928b2Evan Cheng return Reg; 1269229694f0ee630ceabe96a8bd48952f6740f928b2Evan Cheng} 1270229694f0ee630ceabe96a8bd48952f6740f928b2Evan Cheng 1271c36b7069b42bece963b7e6adf020353ce990ef76Evan Chengbool MachineInstr::hasUnmodeledSideEffects() const { 1272c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng if (getDesc().hasUnmodeledSideEffects()) 1273c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng return true; 1274c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng if (isInlineAsm()) { 1275c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng unsigned ExtraInfo = getOperand(InlineAsm::MIOp_ExtraInfo).getImm(); 1276c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng if (ExtraInfo & InlineAsm::Extra_HasSideEffects) 1277c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng return true; 1278c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng } 1279c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng 1280c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng return false; 1281c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng} 1282c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng 1283a57fabe815ccf016eead526eb3ef475f116ab155Evan Cheng/// allDefsAreDead - Return true if all the defs of this instruction are dead. 1284a57fabe815ccf016eead526eb3ef475f116ab155Evan Cheng/// 1285a57fabe815ccf016eead526eb3ef475f116ab155Evan Chengbool MachineInstr::allDefsAreDead() const { 1286a57fabe815ccf016eead526eb3ef475f116ab155Evan Cheng for (unsigned i = 0, e = getNumOperands(); i < e; ++i) { 1287a57fabe815ccf016eead526eb3ef475f116ab155Evan Cheng const MachineOperand &MO = getOperand(i); 1288a57fabe815ccf016eead526eb3ef475f116ab155Evan Cheng if (!MO.isReg() || MO.isUse()) 1289a57fabe815ccf016eead526eb3ef475f116ab155Evan Cheng continue; 1290a57fabe815ccf016eead526eb3ef475f116ab155Evan Cheng if (!MO.isDead()) 1291a57fabe815ccf016eead526eb3ef475f116ab155Evan Cheng return false; 1292a57fabe815ccf016eead526eb3ef475f116ab155Evan Cheng } 1293a57fabe815ccf016eead526eb3ef475f116ab155Evan Cheng return true; 1294a57fabe815ccf016eead526eb3ef475f116ab155Evan Cheng} 1295a57fabe815ccf016eead526eb3ef475f116ab155Evan Cheng 1296c8f46c45a0bdefdb91593cabc87547cc45f9d89dEvan Cheng/// copyImplicitOps - Copy implicit register operands from specified 1297c8f46c45a0bdefdb91593cabc87547cc45f9d89dEvan Cheng/// instruction to this instruction. 1298c8f46c45a0bdefdb91593cabc87547cc45f9d89dEvan Chengvoid MachineInstr::copyImplicitOps(const MachineInstr *MI) { 1299c8f46c45a0bdefdb91593cabc87547cc45f9d89dEvan Cheng for (unsigned i = MI->getDesc().getNumOperands(), e = MI->getNumOperands(); 1300c8f46c45a0bdefdb91593cabc87547cc45f9d89dEvan Cheng i != e; ++i) { 1301c8f46c45a0bdefdb91593cabc87547cc45f9d89dEvan Cheng const MachineOperand &MO = MI->getOperand(i); 1302c8f46c45a0bdefdb91593cabc87547cc45f9d89dEvan Cheng if (MO.isReg() && MO.isImplicit()) 1303c8f46c45a0bdefdb91593cabc87547cc45f9d89dEvan Cheng addOperand(MO); 1304c8f46c45a0bdefdb91593cabc87547cc45f9d89dEvan Cheng } 1305c8f46c45a0bdefdb91593cabc87547cc45f9d89dEvan Cheng} 1306c8f46c45a0bdefdb91593cabc87547cc45f9d89dEvan Cheng 130721326fc2ad47ee7e73a8c0b03a4a0cc0b0a0c4e8Brian Gaekevoid MachineInstr::dump() const { 13083b325334102144ec39910563eabebde434504564David Greene dbgs() << " " << *this; 13095ca6bd14a00ba5310ce1a632d3a0cc8f8af31433Mon P Wang} 13105ca6bd14a00ba5310ce1a632d3a0cc8f8af31433Mon P Wang 1311da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patelstatic void printDebugLoc(DebugLoc DL, const MachineFunction *MF, 1312da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel raw_ostream &CommentOS) { 1313da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel const LLVMContext &Ctx = MF->getFunction()->getContext(); 1314da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel if (!DL.isUnknown()) { // Print source line info. 1315da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel DIScope Scope(DL.getScope(Ctx)); 1316da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel // Omit the directory, because it's likely to be long and uninteresting. 1317da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel if (Scope.Verify()) 1318da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel CommentOS << Scope.getFilename(); 1319da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel else 1320da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel CommentOS << "<unknown>"; 1321da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel CommentOS << ':' << DL.getLine(); 1322da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel if (DL.getCol() != 0) 1323da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel CommentOS << ':' << DL.getCol(); 1324da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel DebugLoc InlinedAtDL = DebugLoc::getFromDILocation(DL.getInlinedAt(Ctx)); 1325da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel if (!InlinedAtDL.isUnknown()) { 1326da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel CommentOS << " @[ "; 1327da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel printDebugLoc(InlinedAtDL, MF, CommentOS); 1328da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel CommentOS << " ]"; 1329da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel } 1330da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel } 1331da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel} 1332da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel 13335ca6bd14a00ba5310ce1a632d3a0cc8f8af31433Mon P Wangvoid MachineInstr::print(raw_ostream &OS, const TargetMachine *TM) const { 133480f6c5898113806130975fd56d24929b06bf54f8Dan Gohman // We can be a bit tidier if we know the TargetMachine and/or MachineFunction. 133580f6c5898113806130975fd56d24929b06bf54f8Dan Gohman const MachineFunction *MF = 0; 1336a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen const MachineRegisterInfo *MRI = 0; 133780f6c5898113806130975fd56d24929b06bf54f8Dan Gohman if (const MachineBasicBlock *MBB = getParent()) { 133880f6c5898113806130975fd56d24929b06bf54f8Dan Gohman MF = MBB->getParent(); 133980f6c5898113806130975fd56d24929b06bf54f8Dan Gohman if (!TM && MF) 134080f6c5898113806130975fd56d24929b06bf54f8Dan Gohman TM = &MF->getTarget(); 1341a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen if (MF) 1342a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen MRI = &MF->getRegInfo(); 134380f6c5898113806130975fd56d24929b06bf54f8Dan Gohman } 13440ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman 1345a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen // Save a list of virtual registers. 1346a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen SmallVector<unsigned, 8> VirtRegs; 1347a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen 13480ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman // Print explicitly defined operands on the left of an assignment syntax. 134980f6c5898113806130975fd56d24929b06bf54f8Dan Gohman unsigned StartOp = 0, e = getNumOperands(); 13500ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman for (; StartOp < e && getOperand(StartOp).isReg() && 13510ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman getOperand(StartOp).isDef() && 13520ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman !getOperand(StartOp).isImplicit(); 13530ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman ++StartOp) { 13540ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman if (StartOp != 0) OS << ", "; 13550ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman getOperand(StartOp).print(OS, TM); 1356a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen unsigned Reg = getOperand(StartOp).getReg(); 1357c9df025e33ac435adb3b3318d237c36ca7cec659Jakob Stoklund Olesen if (TargetRegisterInfo::isVirtualRegister(Reg)) 1358a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen VirtRegs.push_back(Reg); 13596a592271fb2946a0704b06fd66199987cdd40b3cChris Lattner } 1360b140762a45d21aaed054f15adaff0fc2274d939dTanya Lattner 13610ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman if (StartOp != 0) 13620ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman OS << " = "; 13630ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman 13640ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman // Print the opcode name. 1365749c6f6b5ed301c84aac562e414486549d7b98ebChris Lattner OS << getDesc().getName(); 1366edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 13670ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman // Print the rest of the operands. 136880f6c5898113806130975fd56d24929b06bf54f8Dan Gohman bool OmittedAnyCallClobbers = false; 136980f6c5898113806130975fd56d24929b06bf54f8Dan Gohman bool FirstOp = true; 13707a2ecd3f99ae4dede7e8c1984c2a08984be69363Jakob Stoklund Olesen unsigned AsmDescOp = ~0u; 13717a2ecd3f99ae4dede7e8c1984c2a08984be69363Jakob Stoklund Olesen unsigned AsmOpCount = 0; 1372c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng 1373c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng if (isInlineAsm()) { 1374c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng // Print asm string. 1375c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng OS << " "; 1376c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng getOperand(InlineAsm::MIOp_AsmString).print(OS, TM); 1377c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng 1378c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng // Print HasSideEffects, IsAlignStack 1379c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng unsigned ExtraInfo = getOperand(InlineAsm::MIOp_ExtraInfo).getImm(); 1380c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng if (ExtraInfo & InlineAsm::Extra_HasSideEffects) 1381c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng OS << " [sideeffect]"; 1382c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng if (ExtraInfo & InlineAsm::Extra_IsAlignStack) 1383c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng OS << " [alignstack]"; 1384c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng 13857a2ecd3f99ae4dede7e8c1984c2a08984be69363Jakob Stoklund Olesen StartOp = AsmDescOp = InlineAsm::MIOp_FirstOperand; 1386c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng FirstOp = false; 1387c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng } 1388c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng 1389c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng 13906a592271fb2946a0704b06fd66199987cdd40b3cChris Lattner for (unsigned i = StartOp, e = getNumOperands(); i != e; ++i) { 139180f6c5898113806130975fd56d24929b06bf54f8Dan Gohman const MachineOperand &MO = getOperand(i); 139280f6c5898113806130975fd56d24929b06bf54f8Dan Gohman 1393c9df025e33ac435adb3b3318d237c36ca7cec659Jakob Stoklund Olesen if (MO.isReg() && TargetRegisterInfo::isVirtualRegister(MO.getReg())) 1394a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen VirtRegs.push_back(MO.getReg()); 1395a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen 139680f6c5898113806130975fd56d24929b06bf54f8Dan Gohman // Omit call-clobbered registers which aren't used anywhere. This makes 139780f6c5898113806130975fd56d24929b06bf54f8Dan Gohman // call instructions much less noisy on targets where calls clobber lots 139880f6c5898113806130975fd56d24929b06bf54f8Dan Gohman // of registers. Don't rely on MO.isDead() because we may be called before 139980f6c5898113806130975fd56d24929b06bf54f8Dan Gohman // LiveVariables is run, or we may be looking at a non-allocatable reg. 140080f6c5898113806130975fd56d24929b06bf54f8Dan Gohman if (MF && getDesc().isCall() && 140180f6c5898113806130975fd56d24929b06bf54f8Dan Gohman MO.isReg() && MO.isImplicit() && MO.isDef()) { 140280f6c5898113806130975fd56d24929b06bf54f8Dan Gohman unsigned Reg = MO.getReg(); 1403c9df025e33ac435adb3b3318d237c36ca7cec659Jakob Stoklund Olesen if (TargetRegisterInfo::isPhysicalRegister(Reg)) { 140480f6c5898113806130975fd56d24929b06bf54f8Dan Gohman const MachineRegisterInfo &MRI = MF->getRegInfo(); 140580f6c5898113806130975fd56d24929b06bf54f8Dan Gohman if (MRI.use_empty(Reg) && !MRI.isLiveOut(Reg)) { 140680f6c5898113806130975fd56d24929b06bf54f8Dan Gohman bool HasAliasLive = false; 140780f6c5898113806130975fd56d24929b06bf54f8Dan Gohman for (const unsigned *Alias = TM->getRegisterInfo()->getAliasSet(Reg); 140880f6c5898113806130975fd56d24929b06bf54f8Dan Gohman unsigned AliasReg = *Alias; ++Alias) 140980f6c5898113806130975fd56d24929b06bf54f8Dan Gohman if (!MRI.use_empty(AliasReg) || MRI.isLiveOut(AliasReg)) { 141080f6c5898113806130975fd56d24929b06bf54f8Dan Gohman HasAliasLive = true; 141180f6c5898113806130975fd56d24929b06bf54f8Dan Gohman break; 141280f6c5898113806130975fd56d24929b06bf54f8Dan Gohman } 141380f6c5898113806130975fd56d24929b06bf54f8Dan Gohman if (!HasAliasLive) { 141480f6c5898113806130975fd56d24929b06bf54f8Dan Gohman OmittedAnyCallClobbers = true; 141580f6c5898113806130975fd56d24929b06bf54f8Dan Gohman continue; 141680f6c5898113806130975fd56d24929b06bf54f8Dan Gohman } 141780f6c5898113806130975fd56d24929b06bf54f8Dan Gohman } 141880f6c5898113806130975fd56d24929b06bf54f8Dan Gohman } 141980f6c5898113806130975fd56d24929b06bf54f8Dan Gohman } 142080f6c5898113806130975fd56d24929b06bf54f8Dan Gohman 142180f6c5898113806130975fd56d24929b06bf54f8Dan Gohman if (FirstOp) FirstOp = false; else OS << ","; 14226a592271fb2946a0704b06fd66199987cdd40b3cChris Lattner OS << " "; 1423b1bb4afbc7d801f9875be135c428b6f05511db5dJakob Stoklund Olesen if (i < getDesc().NumOperands) { 1424b1bb4afbc7d801f9875be135c428b6f05511db5dJakob Stoklund Olesen const TargetOperandInfo &TOI = getDesc().OpInfo[i]; 1425b1bb4afbc7d801f9875be135c428b6f05511db5dJakob Stoklund Olesen if (TOI.isPredicate()) 1426b1bb4afbc7d801f9875be135c428b6f05511db5dJakob Stoklund Olesen OS << "pred:"; 1427b1bb4afbc7d801f9875be135c428b6f05511db5dJakob Stoklund Olesen if (TOI.isOptionalDef()) 1428b1bb4afbc7d801f9875be135c428b6f05511db5dJakob Stoklund Olesen OS << "opt:"; 1429b1bb4afbc7d801f9875be135c428b6f05511db5dJakob Stoklund Olesen } 143059b3655564bb6717b296ca9e71f13bf7db45b590Evan Cheng if (isDebugValue() && MO.isMetadata()) { 143159b3655564bb6717b296ca9e71f13bf7db45b590Evan Cheng // Pretty print DBG_VALUE instructions. 143259b3655564bb6717b296ca9e71f13bf7db45b590Evan Cheng const MDNode *MD = MO.getMetadata(); 143359b3655564bb6717b296ca9e71f13bf7db45b590Evan Cheng if (const MDString *MDS = dyn_cast<MDString>(MD->getOperand(2))) 143459b3655564bb6717b296ca9e71f13bf7db45b590Evan Cheng OS << "!\"" << MDS->getString() << '\"'; 143559b3655564bb6717b296ca9e71f13bf7db45b590Evan Cheng else 143659b3655564bb6717b296ca9e71f13bf7db45b590Evan Cheng MO.print(OS, TM); 1437b1e11455d1cf4df081a9593660d194c1a53b4334Jakob Stoklund Olesen } else if (TM && (isInsertSubreg() || isRegSequence()) && MO.isImm()) { 1438b1e11455d1cf4df081a9593660d194c1a53b4334Jakob Stoklund Olesen OS << TM->getRegisterInfo()->getSubRegIndexName(MO.getImm()); 14397a2ecd3f99ae4dede7e8c1984c2a08984be69363Jakob Stoklund Olesen } else if (i == AsmDescOp && MO.isImm()) { 14407a2ecd3f99ae4dede7e8c1984c2a08984be69363Jakob Stoklund Olesen // Pretty print the inline asm operand descriptor. 14417a2ecd3f99ae4dede7e8c1984c2a08984be69363Jakob Stoklund Olesen OS << '$' << AsmOpCount++; 14427a2ecd3f99ae4dede7e8c1984c2a08984be69363Jakob Stoklund Olesen unsigned Flag = MO.getImm(); 14437a2ecd3f99ae4dede7e8c1984c2a08984be69363Jakob Stoklund Olesen switch (InlineAsm::getKind(Flag)) { 14447a2ecd3f99ae4dede7e8c1984c2a08984be69363Jakob Stoklund Olesen case InlineAsm::Kind_RegUse: OS << ":[reguse]"; break; 14457a2ecd3f99ae4dede7e8c1984c2a08984be69363Jakob Stoklund Olesen case InlineAsm::Kind_RegDef: OS << ":[regdef]"; break; 14467a2ecd3f99ae4dede7e8c1984c2a08984be69363Jakob Stoklund Olesen case InlineAsm::Kind_Imm: OS << ":[imm]"; break; 14477a2ecd3f99ae4dede7e8c1984c2a08984be69363Jakob Stoklund Olesen case InlineAsm::Kind_Mem: OS << ":[mem]"; break; 14487a2ecd3f99ae4dede7e8c1984c2a08984be69363Jakob Stoklund Olesen case InlineAsm::Kind_RegDefEarlyClobber: OS << ":[regdef-ec]"; break; 14497a2ecd3f99ae4dede7e8c1984c2a08984be69363Jakob Stoklund Olesen default: OS << ":[??" << InlineAsm::getKind(Flag) << ']'; break; 14507a2ecd3f99ae4dede7e8c1984c2a08984be69363Jakob Stoklund Olesen } 14517a2ecd3f99ae4dede7e8c1984c2a08984be69363Jakob Stoklund Olesen 14527a2ecd3f99ae4dede7e8c1984c2a08984be69363Jakob Stoklund Olesen unsigned TiedTo = 0; 14537a2ecd3f99ae4dede7e8c1984c2a08984be69363Jakob Stoklund Olesen if (InlineAsm::isUseOperandTiedToDef(Flag, TiedTo)) 14547a2ecd3f99ae4dede7e8c1984c2a08984be69363Jakob Stoklund Olesen OS << " [tiedto:$" << TiedTo << ']'; 14557a2ecd3f99ae4dede7e8c1984c2a08984be69363Jakob Stoklund Olesen 14567a2ecd3f99ae4dede7e8c1984c2a08984be69363Jakob Stoklund Olesen // Compute the index of the next operand descriptor. 14577a2ecd3f99ae4dede7e8c1984c2a08984be69363Jakob Stoklund Olesen AsmDescOp += 1 + InlineAsm::getNumOperandRegisters(Flag); 145859b3655564bb6717b296ca9e71f13bf7db45b590Evan Cheng } else 145959b3655564bb6717b296ca9e71f13bf7db45b590Evan Cheng MO.print(OS, TM); 146080f6c5898113806130975fd56d24929b06bf54f8Dan Gohman } 146180f6c5898113806130975fd56d24929b06bf54f8Dan Gohman 146280f6c5898113806130975fd56d24929b06bf54f8Dan Gohman // Briefly indicate whether any call clobbers were omitted. 146380f6c5898113806130975fd56d24929b06bf54f8Dan Gohman if (OmittedAnyCallClobbers) { 1464164558e59c2a321bf670e31a7bdde0d38d79bb67Bill Wendling if (!FirstOp) OS << ","; 146580f6c5898113806130975fd56d24929b06bf54f8Dan Gohman OS << " ..."; 14661049164aa6b06d91d9b3b557a9a213eaf3f6319aChris Lattner } 1467edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 14680ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman bool HaveSemi = false; 14696dd97471c43805b3febf598d50498a09a02e93f4Anton Korobeynikov if (Flags) { 14706dd97471c43805b3febf598d50498a09a02e93f4Anton Korobeynikov if (!HaveSemi) OS << ";"; HaveSemi = true; 14716dd97471c43805b3febf598d50498a09a02e93f4Anton Korobeynikov OS << " flags: "; 14726dd97471c43805b3febf598d50498a09a02e93f4Anton Korobeynikov 14736dd97471c43805b3febf598d50498a09a02e93f4Anton Korobeynikov if (Flags & FrameSetup) 14746dd97471c43805b3febf598d50498a09a02e93f4Anton Korobeynikov OS << "FrameSetup"; 14756dd97471c43805b3febf598d50498a09a02e93f4Anton Korobeynikov } 14766dd97471c43805b3febf598d50498a09a02e93f4Anton Korobeynikov 14778e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman if (!memoperands_empty()) { 14780ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman if (!HaveSemi) OS << ";"; HaveSemi = true; 14790ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman 14800ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman OS << " mem:"; 1481c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman for (mmo_iterator i = memoperands_begin(), e = memoperands_end(); 1482c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman i != e; ++i) { 1483c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman OS << **i; 1484ee56c42168f6c4271593f6018c4409b6a5910302Oscar Fuentes if (llvm::next(i) != e) 1485cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman OS << " "; 148669de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman } 148769de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman } 148869de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman 1489a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen // Print the regclass of any virtual registers encountered. 1490a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen if (MRI && !VirtRegs.empty()) { 1491a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen if (!HaveSemi) OS << ";"; HaveSemi = true; 1492a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen for (unsigned i = 0; i != VirtRegs.size(); ++i) { 1493a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen const TargetRegisterClass *RC = MRI->getRegClass(VirtRegs[i]); 14944314268128be6d54c9a7f0709680e5a5b40f3ab3Jakob Stoklund Olesen OS << " " << RC->getName() << ':' << PrintReg(VirtRegs[i]); 1495a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen for (unsigned j = i+1; j != VirtRegs.size();) { 1496a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen if (MRI->getRegClass(VirtRegs[j]) != RC) { 1497a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen ++j; 1498a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen continue; 1499a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen } 1500a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen if (VirtRegs[i] != VirtRegs[j]) 15014314268128be6d54c9a7f0709680e5a5b40f3ab3Jakob Stoklund Olesen OS << "," << PrintReg(VirtRegs[j]); 1502a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen VirtRegs.erase(VirtRegs.begin()+j); 1503a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen } 1504a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen } 1505a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen } 1506a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen 15076dd97471c43805b3febf598d50498a09a02e93f4Anton Korobeynikov // Print debug location information. 150880f6c5898113806130975fd56d24929b06bf54f8Dan Gohman if (!debugLoc.isUnknown() && MF) { 15096dd97471c43805b3febf598d50498a09a02e93f4Anton Korobeynikov if (!HaveSemi) OS << ";"; HaveSemi = true; 151075ae593a2750f9f7995980c3a03c0d972985e394Dan Gohman OS << " dbg:"; 1511da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel printDebugLoc(debugLoc, MF, OS); 1512b5ef27375731ece13a8ae0102b3f3233351036afBill Wendling } 1513b5ef27375731ece13a8ae0102b3f3233351036afBill Wendling 15146dd97471c43805b3febf598d50498a09a02e93f4Anton Korobeynikov OS << '\n'; 15151049164aa6b06d91d9b3b557a9a213eaf3f6319aChris Lattner} 15161049164aa6b06d91d9b3b557a9a213eaf3f6319aChris Lattner 1517b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Andersonbool MachineInstr::addRegisterKilled(unsigned IncomingReg, 15186f0d024a534af18d9e60b3ea757376cd8a3a980eDan Gohman const TargetRegisterInfo *RegInfo, 1519b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson bool AddIfNotFound) { 15209b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng bool isPhysReg = TargetRegisterInfo::isPhysicalRegister(IncomingReg); 15212ebc11ac6d19ec806da97bd4f2d49a27932d09fbDan Gohman bool hasAliases = isPhysReg && RegInfo->getAliasSet(IncomingReg); 15223f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman bool Found = false; 15239b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng SmallVector<unsigned,4> DeadOps; 15244a23d72ec21d1bdfda69fd16c9fc10cec39f1fedBill Wendling for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 15254a23d72ec21d1bdfda69fd16c9fc10cec39f1fedBill Wendling MachineOperand &MO = getOperand(i); 1526efb8e3e113cbf359d6a838c3b37fedc8305d19bbJakob Stoklund Olesen if (!MO.isReg() || !MO.isUse() || MO.isUndef()) 15279b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng continue; 15289b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng unsigned Reg = MO.getReg(); 15299b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng if (!Reg) 15309b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng continue; 15314a23d72ec21d1bdfda69fd16c9fc10cec39f1fedBill Wendling 15329b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng if (Reg == IncomingReg) { 15333f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman if (!Found) { 15343f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman if (MO.isKill()) 15353f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman // The register is already marked kill. 15363f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman return true; 1537ece48185168ab130b1777feb86d9e3fe80eb87d2Jakob Stoklund Olesen if (isPhysReg && isRegTiedToDefOperand(i)) 1538ece48185168ab130b1777feb86d9e3fe80eb87d2Jakob Stoklund Olesen // Two-address uses of physregs must not be marked kill. 1539ece48185168ab130b1777feb86d9e3fe80eb87d2Jakob Stoklund Olesen return true; 15403f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman MO.setIsKill(); 15413f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman Found = true; 15423f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman } 15433f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman } else if (hasAliases && MO.isKill() && 15443f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman TargetRegisterInfo::isPhysicalRegister(Reg)) { 15459b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng // A super-register kill already exists. 15469b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng if (RegInfo->isSuperRegister(IncomingReg, Reg)) 15472ebc11ac6d19ec806da97bd4f2d49a27932d09fbDan Gohman return true; 15482ebc11ac6d19ec806da97bd4f2d49a27932d09fbDan Gohman if (RegInfo->isSubRegister(IncomingReg, Reg)) 15499b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng DeadOps.push_back(i); 1550b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson } 1551b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson } 1552b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson 15539b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng // Trim unneeded kill operands. 15549b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng while (!DeadOps.empty()) { 15559b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng unsigned OpIdx = DeadOps.back(); 15569b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng if (getOperand(OpIdx).isImplicit()) 15579b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng RemoveOperand(OpIdx); 15589b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng else 15599b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng getOperand(OpIdx).setIsKill(false); 15609b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng DeadOps.pop_back(); 15619b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng } 15629b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng 15634a23d72ec21d1bdfda69fd16c9fc10cec39f1fedBill Wendling // If not found, this means an alias of one of the operands is killed. Add a 1564b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson // new implicit operand if required. 15653f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman if (!Found && AddIfNotFound) { 15664a23d72ec21d1bdfda69fd16c9fc10cec39f1fedBill Wendling addOperand(MachineOperand::CreateReg(IncomingReg, 15674a23d72ec21d1bdfda69fd16c9fc10cec39f1fedBill Wendling false /*IsDef*/, 15684a23d72ec21d1bdfda69fd16c9fc10cec39f1fedBill Wendling true /*IsImp*/, 15694a23d72ec21d1bdfda69fd16c9fc10cec39f1fedBill Wendling true /*IsKill*/)); 1570b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson return true; 1571b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson } 15723f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman return Found; 1573b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson} 1574b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson 1575b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Andersonbool MachineInstr::addRegisterDead(unsigned IncomingReg, 15766f0d024a534af18d9e60b3ea757376cd8a3a980eDan Gohman const TargetRegisterInfo *RegInfo, 1577b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson bool AddIfNotFound) { 15789b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng bool isPhysReg = TargetRegisterInfo::isPhysicalRegister(IncomingReg); 157901b2e236b571e7c22ee8493b7ea19eda9830d75cEvan Cheng bool hasAliases = isPhysReg && RegInfo->getAliasSet(IncomingReg); 15803f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman bool Found = false; 15819b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng SmallVector<unsigned,4> DeadOps; 1582b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 1583b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson MachineOperand &MO = getOperand(i); 1584d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (!MO.isReg() || !MO.isDef()) 15859b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng continue; 15869b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng unsigned Reg = MO.getReg(); 15873f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman if (!Reg) 15883f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman continue; 15893f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman 15909b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng if (Reg == IncomingReg) { 1591b793bc1ccabef36b3223bae69f5e94a8e98d22ebJakob Stoklund Olesen MO.setIsDead(); 1592b793bc1ccabef36b3223bae69f5e94a8e98d22ebJakob Stoklund Olesen Found = true; 15933f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman } else if (hasAliases && MO.isDead() && 15943f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman TargetRegisterInfo::isPhysicalRegister(Reg)) { 15959b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng // There exists a super-register that's marked dead. 15969b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng if (RegInfo->isSuperRegister(IncomingReg, Reg)) 15972ebc11ac6d19ec806da97bd4f2d49a27932d09fbDan Gohman return true; 159822ae99908258dd5631fde7128a94c418ed08eae5Owen Anderson if (RegInfo->getSubRegisters(IncomingReg) && 159922ae99908258dd5631fde7128a94c418ed08eae5Owen Anderson RegInfo->getSuperRegisters(Reg) && 160022ae99908258dd5631fde7128a94c418ed08eae5Owen Anderson RegInfo->isSubRegister(IncomingReg, Reg)) 16019b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng DeadOps.push_back(i); 1602b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson } 1603b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson } 1604b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson 16059b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng // Trim unneeded dead operands. 16069b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng while (!DeadOps.empty()) { 16079b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng unsigned OpIdx = DeadOps.back(); 16089b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng if (getOperand(OpIdx).isImplicit()) 16099b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng RemoveOperand(OpIdx); 16109b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng else 16119b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng getOperand(OpIdx).setIsDead(false); 16129b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng DeadOps.pop_back(); 16139b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng } 16149b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng 16153f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman // If not found, this means an alias of one of the operands is dead. Add a 16163f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman // new implicit operand if required. 161731530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner if (Found || !AddIfNotFound) 161831530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner return Found; 161931530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner 162031530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner addOperand(MachineOperand::CreateReg(IncomingReg, 162131530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner true /*IsDef*/, 162231530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner true /*IsImp*/, 162331530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner false /*IsKill*/, 162431530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner true /*IsDead*/)); 162531530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner return true; 1626b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson} 16278efadf94b568c08de3ff8ce35fd904a935387406Jakob Stoklund Olesen 16288efadf94b568c08de3ff8ce35fd904a935387406Jakob Stoklund Olesenvoid MachineInstr::addRegisterDefined(unsigned IncomingReg, 16298efadf94b568c08de3ff8ce35fd904a935387406Jakob Stoklund Olesen const TargetRegisterInfo *RegInfo) { 163063e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen if (TargetRegisterInfo::isPhysicalRegister(IncomingReg)) { 163163e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen MachineOperand *MO = findRegisterDefOperand(IncomingReg, false, RegInfo); 163263e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen if (MO) 163363e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen return; 163463e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen } else { 163563e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 163663e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen const MachineOperand &MO = getOperand(i); 163763e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen if (MO.isReg() && MO.getReg() == IncomingReg && MO.isDef() && 163863e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen MO.getSubReg() == 0) 163963e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen return; 164063e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen } 164163e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen } 164263e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen addOperand(MachineOperand::CreateReg(IncomingReg, 164363e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen true /*IsDef*/, 164463e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen true /*IsImp*/)); 16458efadf94b568c08de3ff8ce35fd904a935387406Jakob Stoklund Olesen} 164667eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Cheng 1647db4971259ce94cea26e555e9ade82672a3581f5cDan Gohmanvoid MachineInstr::setPhysRegsDeadExcept(const SmallVectorImpl<unsigned> &UsedRegs, 1648db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman const TargetRegisterInfo &TRI) { 1649db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 1650db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman MachineOperand &MO = getOperand(i); 1651db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman if (!MO.isReg() || !MO.isDef()) continue; 1652db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman unsigned Reg = MO.getReg(); 1653db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman if (Reg == 0) continue; 1654db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman bool Dead = true; 1655db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman for (SmallVectorImpl<unsigned>::const_iterator I = UsedRegs.begin(), 1656db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman E = UsedRegs.end(); I != E; ++I) 1657db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman if (TRI.regsOverlap(*I, Reg)) { 1658db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman Dead = false; 1659db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman break; 1660db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman } 1661db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman // If there are no uses, including partial uses, the def is dead. 1662db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman if (Dead) MO.setIsDead(); 1663db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman } 1664db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman} 1665db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman 166667eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Chengunsigned 166767eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan ChengMachineInstrExpressionTrait::getHashValue(const MachineInstr* const &MI) { 166867eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Cheng unsigned Hash = MI->getOpcode() * 37; 166967eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Cheng for (unsigned i = 0, e = MI->getNumOperands(); i != e; ++i) { 167067eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Cheng const MachineOperand &MO = MI->getOperand(i); 167167eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Cheng uint64_t Key = (uint64_t)MO.getType() << 32; 167267eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Cheng switch (MO.getType()) { 167372aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner default: break; 167472aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner case MachineOperand::MO_Register: 1675c9df025e33ac435adb3b3318d237c36ca7cec659Jakob Stoklund Olesen if (MO.isDef() && TargetRegisterInfo::isVirtualRegister(MO.getReg())) 167672aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner continue; // Skip virtual register defs. 167772aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner Key |= MO.getReg(); 167872aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner break; 167972aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner case MachineOperand::MO_Immediate: 168072aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner Key |= MO.getImm(); 168172aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner break; 168272aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner case MachineOperand::MO_FrameIndex: 168372aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner case MachineOperand::MO_ConstantPoolIndex: 168472aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner case MachineOperand::MO_JumpTableIndex: 168572aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner Key |= MO.getIndex(); 168672aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner break; 168772aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner case MachineOperand::MO_MachineBasicBlock: 168872aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner Key |= DenseMapInfo<void*>::getHashValue(MO.getMBB()); 168972aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner break; 169072aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner case MachineOperand::MO_GlobalAddress: 169172aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner Key |= DenseMapInfo<void*>::getHashValue(MO.getGlobal()); 169272aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner break; 169372aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner case MachineOperand::MO_BlockAddress: 169472aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner Key |= DenseMapInfo<void*>::getHashValue(MO.getBlockAddress()); 169572aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner break; 169672aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner case MachineOperand::MO_MCSymbol: 169772aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner Key |= DenseMapInfo<void*>::getHashValue(MO.getMCSymbol()); 169872aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner break; 169967eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Cheng } 170067eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Cheng Key += ~(Key << 32); 170167eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Cheng Key ^= (Key >> 22); 170267eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Cheng Key += ~(Key << 13); 170367eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Cheng Key ^= (Key >> 8); 170467eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Cheng Key += (Key << 3); 170567eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Cheng Key ^= (Key >> 15); 170667eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Cheng Key += ~(Key << 27); 170767eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Cheng Key ^= (Key >> 31); 170867eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Cheng Hash = (unsigned)Key + Hash * 37; 170967eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Cheng } 171067eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Cheng return Hash; 171167eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Cheng} 1712