MachineInstr.cpp revision d862d697d2d6f7d4e8fdd0b70686a6695e04d362
1e138b3dd1ff02d826233482831318708a166ed93Chris Lattner//===-- lib/CodeGen/MachineInstr.cpp --------------------------------------===// 2edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman// 3b576c94c15af9a440f69d9d03c2afead7971118cJohn Criswell// The LLVM Compiler Infrastructure 4b576c94c15af9a440f69d9d03c2afead7971118cJohn Criswell// 54ee451de366474b9c228b4e5fa573795a715216dChris Lattner// This file is distributed under the University of Illinois Open Source 64ee451de366474b9c228b4e5fa573795a715216dChris Lattner// License. See LICENSE.TXT for details. 7edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman// 8b576c94c15af9a440f69d9d03c2afead7971118cJohn Criswell//===----------------------------------------------------------------------===// 921326fc2ad47ee7e73a8c0b03a4a0cc0b0a0c4e8Brian Gaeke// 1021326fc2ad47ee7e73a8c0b03a4a0cc0b0a0c4e8Brian Gaeke// Methods common to all machine instructions. 1121326fc2ad47ee7e73a8c0b03a4a0cc0b0a0c4e8Brian Gaeke// 12035dfbe7f2d109008d2d62d9f2a67efb477a7ab6Chris Lattner//===----------------------------------------------------------------------===// 1370bc4b5d1a3795a8f41be96723cfcbccac8e1671Vikram S. Adve 14822b4fb896846b87dd11a330ae13f2239329aeefChris Lattner#include "llvm/CodeGen/MachineInstr.h" 15fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng#include "llvm/Constants.h" 160bcbd1df7a204e1e512f1a27066d725309de1b13Bill Wendling#include "llvm/DebugInfo.h" 178c2b52552c90f39e4b2fed43e309e599e742b6acDan Gohman#include "llvm/Function.h" 18fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng#include "llvm/InlineAsm.h" 19d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen#include "llvm/LLVMContext.h" 2072aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner#include "llvm/Metadata.h" 21d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen#include "llvm/Module.h" 225e9cd434234a36089daeee915f1dc02b96947fbaChris Lattner#include "llvm/Type.h" 2384bc5427d6883f73cfeae3da640acd011d35c006Chris Lattner#include "llvm/Value.h" 24cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman#include "llvm/Assembly/Writer.h" 25506049f29f4f202a8e45feb916cc0264440a7f6dEvan Cheng#include "llvm/CodeGen/MachineConstantPool.h" 268517e1f0beea9b5e47974f083396d53294c390adChris Lattner#include "llvm/CodeGen/MachineFunction.h" 27c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman#include "llvm/CodeGen/MachineMemOperand.h" 28d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen#include "llvm/CodeGen/MachineModuleInfo.h" 2962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner#include "llvm/CodeGen/MachineRegisterInfo.h" 3069de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman#include "llvm/CodeGen/PseudoSourceValue.h" 31e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng#include "llvm/MC/MCInstrDesc.h" 3272aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner#include "llvm/MC/MCSymbol.h" 331049164aa6b06d91d9b3b557a9a213eaf3f6319aChris Lattner#include "llvm/Target/TargetMachine.h" 34bb81d97feb396a8bb21d074db1c57e9f66525f40Evan Cheng#include "llvm/Target/TargetInstrInfo.h" 356f0d024a534af18d9e60b3ea757376cd8a3a980eDan Gohman#include "llvm/Target/TargetRegisterInfo.h" 36e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman#include "llvm/Analysis/AliasAnalysis.h" 373b325334102144ec39910563eabebde434504564David Greene#include "llvm/Support/Debug.h" 38c25e7581b9b8088910da31702d4ca21c4734c6d7Torok Edwin#include "llvm/Support/ErrorHandling.h" 392c3f7ae3843bdc9dcfe85393e178211976c1f9bdDan Gohman#include "llvm/Support/LeakDetector.h" 40ce42e404a26454f4332c2c350c75ad27bbbb16f7Dan Gohman#include "llvm/Support/MathExtras.h" 41edfb72c6288118ab9c900a560ded89dfaa107296Chris Lattner#include "llvm/Support/raw_ostream.h" 42b8d2f550b84523e8a73198f98e5d450ec3b4fee7Dan Gohman#include "llvm/ADT/FoldingSet.h" 43fc22625eb04d39b0de77090702cf50a9bcda3ddbChandler Carruth#include "llvm/ADT/Hashing.h" 440742b59913a7760eb26f08121cd244a37e83e3b3Chris Lattnerusing namespace llvm; 45d0fde30ce850b78371fd1386338350591f9ff494Brian Gaeke 46f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner//===----------------------------------------------------------------------===// 47f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner// MachineOperand Implementation 48f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner//===----------------------------------------------------------------------===// 49f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner 5062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// AddRegOperandToRegInfo - Add this register operand to the specified 5162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// MachineRegisterInfo. If it is null, then the next/prev fields should be 5262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// explicitly nulled out. 5362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattnervoid MachineOperand::AddRegOperandToRegInfo(MachineRegisterInfo *RegInfo) { 54d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman assert(isReg() && "Can only add reg operand to use lists"); 55ee61d67c2f1105e23b2ea5110389f3b7b713b504Jim Grosbach 5662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // If the reginfo pointer is null, just explicitly null out or next/prev 5762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // pointers, to ensure they are not garbage. 5862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (RegInfo == 0) { 5962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Contents.Reg.Prev = 0; 6062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Contents.Reg.Next = 0; 6162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner return; 6262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 63ee61d67c2f1105e23b2ea5110389f3b7b713b504Jim Grosbach 6462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Otherwise, add this operand to the head of the registers use/def list. 6580fe5311b5e9e5c4642ff46ba2377173c17797f6Chris Lattner MachineOperand **Head = &RegInfo->getRegUseDefListHead(getReg()); 66ee61d67c2f1105e23b2ea5110389f3b7b713b504Jim Grosbach 6780fe5311b5e9e5c4642ff46ba2377173c17797f6Chris Lattner // For SSA values, we prefer to keep the definition at the start of the list. 6880fe5311b5e9e5c4642ff46ba2377173c17797f6Chris Lattner // we do this by skipping over the definition if it is at the head of the 6980fe5311b5e9e5c4642ff46ba2377173c17797f6Chris Lattner // list. 7080fe5311b5e9e5c4642ff46ba2377173c17797f6Chris Lattner if (*Head && (*Head)->isDef()) 7180fe5311b5e9e5c4642ff46ba2377173c17797f6Chris Lattner Head = &(*Head)->Contents.Reg.Next; 72ee61d67c2f1105e23b2ea5110389f3b7b713b504Jim Grosbach 7380fe5311b5e9e5c4642ff46ba2377173c17797f6Chris Lattner Contents.Reg.Next = *Head; 7462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (Contents.Reg.Next) { 7562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner assert(getReg() == Contents.Reg.Next->getReg() && 7662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner "Different regs on the same list!"); 7762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Contents.Reg.Next->Contents.Reg.Prev = &Contents.Reg.Next; 7862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 79ee61d67c2f1105e23b2ea5110389f3b7b713b504Jim Grosbach 8080fe5311b5e9e5c4642ff46ba2377173c17797f6Chris Lattner Contents.Reg.Prev = Head; 8180fe5311b5e9e5c4642ff46ba2377173c17797f6Chris Lattner *Head = this; 8262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner} 8362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 843bc1a3735f216f4a122fe4a05d39f63888ab205aDan Gohman/// RemoveRegOperandFromRegInfo - Remove this register operand from the 853bc1a3735f216f4a122fe4a05d39f63888ab205aDan Gohman/// MachineRegisterInfo it is linked with. 863bc1a3735f216f4a122fe4a05d39f63888ab205aDan Gohmanvoid MachineOperand::RemoveRegOperandFromRegInfo() { 873bc1a3735f216f4a122fe4a05d39f63888ab205aDan Gohman assert(isOnRegUseList() && "Reg operand is not on a use list"); 883bc1a3735f216f4a122fe4a05d39f63888ab205aDan Gohman // Unlink this from the doubly linked list of operands. 893bc1a3735f216f4a122fe4a05d39f63888ab205aDan Gohman MachineOperand *NextOp = Contents.Reg.Next; 90ee61d67c2f1105e23b2ea5110389f3b7b713b504Jim Grosbach *Contents.Reg.Prev = NextOp; 913bc1a3735f216f4a122fe4a05d39f63888ab205aDan Gohman if (NextOp) { 923bc1a3735f216f4a122fe4a05d39f63888ab205aDan Gohman assert(NextOp->getReg() == getReg() && "Corrupt reg use/def chain!"); 933bc1a3735f216f4a122fe4a05d39f63888ab205aDan Gohman NextOp->Contents.Reg.Prev = Contents.Reg.Prev; 943bc1a3735f216f4a122fe4a05d39f63888ab205aDan Gohman } 953bc1a3735f216f4a122fe4a05d39f63888ab205aDan Gohman Contents.Reg.Prev = 0; 963bc1a3735f216f4a122fe4a05d39f63888ab205aDan Gohman Contents.Reg.Next = 0; 973bc1a3735f216f4a122fe4a05d39f63888ab205aDan Gohman} 983bc1a3735f216f4a122fe4a05d39f63888ab205aDan Gohman 9962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattnervoid MachineOperand::setReg(unsigned Reg) { 10062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (getReg() == Reg) return; // No change. 101ee61d67c2f1105e23b2ea5110389f3b7b713b504Jim Grosbach 10262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Otherwise, we have to change the register. If this operand is embedded 10362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // into a machine function, we need to update the old and new register's 10462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // use/def lists. 10562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (MachineInstr *MI = getParent()) 10662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (MachineBasicBlock *MBB = MI->getParent()) 10762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (MachineFunction *MF = MBB->getParent()) { 10862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner RemoveRegOperandFromRegInfo(); 1092594746045258958673ebe42db2a27a4d05b0b73Jakob Stoklund Olesen SmallContents.RegNo = Reg; 11062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner AddRegOperandToRegInfo(&MF->getRegInfo()); 11162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner return; 11262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 113ee61d67c2f1105e23b2ea5110389f3b7b713b504Jim Grosbach 11462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Otherwise, just change the register, no problem. :) 1152594746045258958673ebe42db2a27a4d05b0b73Jakob Stoklund Olesen SmallContents.RegNo = Reg; 11662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner} 11762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 1182da53370241fdd1b5c291483311b34e609f06c73Jakob Stoklund Olesenvoid MachineOperand::substVirtReg(unsigned Reg, unsigned SubIdx, 1192da53370241fdd1b5c291483311b34e609f06c73Jakob Stoklund Olesen const TargetRegisterInfo &TRI) { 1202da53370241fdd1b5c291483311b34e609f06c73Jakob Stoklund Olesen assert(TargetRegisterInfo::isVirtualRegister(Reg)); 1212da53370241fdd1b5c291483311b34e609f06c73Jakob Stoklund Olesen if (SubIdx && getSubReg()) 1222da53370241fdd1b5c291483311b34e609f06c73Jakob Stoklund Olesen SubIdx = TRI.composeSubRegIndices(SubIdx, getSubReg()); 1232da53370241fdd1b5c291483311b34e609f06c73Jakob Stoklund Olesen setReg(Reg); 124a5135f60dd95275dcbc1123f866889151ced933dJakob Stoklund Olesen if (SubIdx) 125a5135f60dd95275dcbc1123f866889151ced933dJakob Stoklund Olesen setSubReg(SubIdx); 1262da53370241fdd1b5c291483311b34e609f06c73Jakob Stoklund Olesen} 1272da53370241fdd1b5c291483311b34e609f06c73Jakob Stoklund Olesen 1282da53370241fdd1b5c291483311b34e609f06c73Jakob Stoklund Olesenvoid MachineOperand::substPhysReg(unsigned Reg, const TargetRegisterInfo &TRI) { 1292da53370241fdd1b5c291483311b34e609f06c73Jakob Stoklund Olesen assert(TargetRegisterInfo::isPhysicalRegister(Reg)); 1302da53370241fdd1b5c291483311b34e609f06c73Jakob Stoklund Olesen if (getSubReg()) { 1312da53370241fdd1b5c291483311b34e609f06c73Jakob Stoklund Olesen Reg = TRI.getSubReg(Reg, getSubReg()); 132cf724f078623e786fc92335fdb0ec70b46f2e86dJakob Stoklund Olesen // Note that getSubReg() may return 0 if the sub-register doesn't exist. 133cf724f078623e786fc92335fdb0ec70b46f2e86dJakob Stoklund Olesen // That won't happen in legal code. 1342da53370241fdd1b5c291483311b34e609f06c73Jakob Stoklund Olesen setSubReg(0); 1352da53370241fdd1b5c291483311b34e609f06c73Jakob Stoklund Olesen } 1362da53370241fdd1b5c291483311b34e609f06c73Jakob Stoklund Olesen setReg(Reg); 1372da53370241fdd1b5c291483311b34e609f06c73Jakob Stoklund Olesen} 1382da53370241fdd1b5c291483311b34e609f06c73Jakob Stoklund Olesen 13962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// ChangeToImmediate - Replace this operand with a new immediate operand of 14062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// the specified value. If an operand is known to be an immediate already, 14162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// the setImm method should be used. 14262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattnervoid MachineOperand::ChangeToImmediate(int64_t ImmVal) { 14362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // If this operand is currently a register operand, and if this is in a 14462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // function, deregister the operand from the register's use/def list. 145d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (isReg() && getParent() && getParent()->getParent() && 14662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner getParent()->getParent()->getParent()) 14762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner RemoveRegOperandFromRegInfo(); 148ee61d67c2f1105e23b2ea5110389f3b7b713b504Jim Grosbach 14962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner OpKind = MO_Immediate; 15062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Contents.ImmVal = ImmVal; 15162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner} 15262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 15362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// ChangeToRegister - Replace this operand with a new register operand of 15462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// the specified value. If an operand is known to be an register already, 15562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// the setReg method should be used. 15662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattnervoid MachineOperand::ChangeToRegister(unsigned Reg, bool isDef, bool isImp, 1579653f9ec970147a12216d787078eab2f8b9c122aDale Johannesen bool isKill, bool isDead, bool isUndef, 1589653f9ec970147a12216d787078eab2f8b9c122aDale Johannesen bool isDebug) { 159ee61d67c2f1105e23b2ea5110389f3b7b713b504Jim Grosbach // If this operand is already a register operand, use setReg to update the 16062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // register's use/def lists. 161d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (isReg()) { 162e009180f2bbcf5edbe3b583936c37c4b3be2d082Dale Johannesen assert(!isEarlyClobber()); 16362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner setReg(Reg); 16462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } else { 16562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Otherwise, change this to a register and set the reg#. 16662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner OpKind = MO_Register; 1672594746045258958673ebe42db2a27a4d05b0b73Jakob Stoklund Olesen SmallContents.RegNo = Reg; 16862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 16962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // If this operand is embedded in a function, add the operand to the 17062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // register's use/def list. 17162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (MachineInstr *MI = getParent()) 17262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (MachineBasicBlock *MBB = MI->getParent()) 17362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (MachineFunction *MF = MBB->getParent()) 17462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner AddRegOperandToRegInfo(&MF->getRegInfo()); 17562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 17662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 17762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner IsDef = isDef; 17862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner IsImp = isImp; 17962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner IsKill = isKill; 18062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner IsDead = isDead; 1814784f1fc73abf6005b7b7262d395af71b57b1255Evan Cheng IsUndef = isUndef; 1822068215e8515203ab4839ee494cdc53dfd0cdf02Jakob Stoklund Olesen IsInternalRead = false; 183e009180f2bbcf5edbe3b583936c37c4b3be2d082Dale Johannesen IsEarlyClobber = false; 1849653f9ec970147a12216d787078eab2f8b9c122aDale Johannesen IsDebug = isDebug; 18562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner SubReg = 0; 18662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner} 18762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 188f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner/// isIdenticalTo - Return true if this operand is identical to the specified 189d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth/// operand. Note that this should stay in sync with the hash_value overload 190d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth/// below. 191f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattnerbool MachineOperand::isIdenticalTo(const MachineOperand &Other) const { 19231530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner if (getType() != Other.getType() || 19331530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner getTargetFlags() != Other.getTargetFlags()) 19431530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner return false; 195ee61d67c2f1105e23b2ea5110389f3b7b713b504Jim Grosbach 196f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner switch (getType()) { 197f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_Register: 198f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner return getReg() == Other.getReg() && isDef() == Other.isDef() && 199f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner getSubReg() == Other.getSubReg(); 200f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_Immediate: 201f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner return getImm() == Other.getImm(); 202c20fb63ebdbc8caec4566eaa7bc5be7f0a14cca1Cameron Zwarich case MachineOperand::MO_CImmediate: 203c20fb63ebdbc8caec4566eaa7bc5be7f0a14cca1Cameron Zwarich return getCImm() == Other.getCImm(); 204e8b7ccf0c9a06831266d690d0b10ead71e0a4ac5Nate Begeman case MachineOperand::MO_FPImmediate: 205e8b7ccf0c9a06831266d690d0b10ead71e0a4ac5Nate Begeman return getFPImm() == Other.getFPImm(); 206f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_MachineBasicBlock: 207f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner return getMBB() == Other.getMBB(); 208f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_FrameIndex: 2098aa797aa51cd4ea1ec6f46f4891a6897944b75b2Chris Lattner return getIndex() == Other.getIndex(); 210f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_ConstantPoolIndex: 2118aa797aa51cd4ea1ec6f46f4891a6897944b75b2Chris Lattner return getIndex() == Other.getIndex() && getOffset() == Other.getOffset(); 212f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_JumpTableIndex: 2138aa797aa51cd4ea1ec6f46f4891a6897944b75b2Chris Lattner return getIndex() == Other.getIndex(); 214f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_GlobalAddress: 215f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner return getGlobal() == Other.getGlobal() && getOffset() == Other.getOffset(); 216f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_ExternalSymbol: 217f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner return !strcmp(getSymbolName(), Other.getSymbolName()) && 218f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner getOffset() == Other.getOffset(); 2198c2b52552c90f39e4b2fed43e309e599e742b6acDan Gohman case MachineOperand::MO_BlockAddress: 2208c2b52552c90f39e4b2fed43e309e599e742b6acDan Gohman return getBlockAddress() == Other.getBlockAddress(); 2217739cad69d2590f556afc9fc3048f967b5a3f4f6Jakob Stoklund Olesen case MO_RegisterMask: 2227739cad69d2590f556afc9fc3048f967b5a3f4f6Jakob Stoklund Olesen return getRegMask() == Other.getRegMask(); 22372aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner case MachineOperand::MO_MCSymbol: 22472aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner return getMCSymbol() == Other.getMCSymbol(); 22524ad3ed71fe93059d1b46ffdbfe63259762bf547Chris Lattner case MachineOperand::MO_Metadata: 22624ad3ed71fe93059d1b46ffdbfe63259762bf547Chris Lattner return getMetadata() == Other.getMetadata(); 227f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner } 228732f05c41f177a0bc4d47e93a5d02120f146cb4cChandler Carruth llvm_unreachable("Invalid machine operand type"); 229f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner} 230f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner 231d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth// Note: this must stay exactly in sync with isIdenticalTo above. 232d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruthhash_code llvm::hash_value(const MachineOperand &MO) { 233d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth switch (MO.getType()) { 234d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth case MachineOperand::MO_Register: 235d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth return hash_combine(MO.getType(), MO.getTargetFlags(), MO.getReg(), 236d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth MO.getSubReg(), MO.isDef()); 237d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth case MachineOperand::MO_Immediate: 238d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth return hash_combine(MO.getType(), MO.getTargetFlags(), MO.getImm()); 239d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth case MachineOperand::MO_CImmediate: 240d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth return hash_combine(MO.getType(), MO.getTargetFlags(), MO.getCImm()); 241d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth case MachineOperand::MO_FPImmediate: 242d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth return hash_combine(MO.getType(), MO.getTargetFlags(), MO.getFPImm()); 243d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth case MachineOperand::MO_MachineBasicBlock: 244d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth return hash_combine(MO.getType(), MO.getTargetFlags(), MO.getMBB()); 245d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth case MachineOperand::MO_FrameIndex: 246d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth return hash_combine(MO.getType(), MO.getTargetFlags(), MO.getIndex()); 247d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth case MachineOperand::MO_ConstantPoolIndex: 248d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth return hash_combine(MO.getType(), MO.getTargetFlags(), MO.getIndex(), 249d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth MO.getOffset()); 250d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth case MachineOperand::MO_JumpTableIndex: 251d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth return hash_combine(MO.getType(), MO.getTargetFlags(), MO.getIndex()); 252d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth case MachineOperand::MO_ExternalSymbol: 253d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth return hash_combine(MO.getType(), MO.getTargetFlags(), MO.getOffset(), 254d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth MO.getSymbolName()); 255d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth case MachineOperand::MO_GlobalAddress: 256d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth return hash_combine(MO.getType(), MO.getTargetFlags(), MO.getGlobal(), 257d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth MO.getOffset()); 258d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth case MachineOperand::MO_BlockAddress: 259d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth return hash_combine(MO.getType(), MO.getTargetFlags(), 260d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth MO.getBlockAddress()); 261d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth case MachineOperand::MO_RegisterMask: 262d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth return hash_combine(MO.getType(), MO.getTargetFlags(), MO.getRegMask()); 263d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth case MachineOperand::MO_Metadata: 264d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth return hash_combine(MO.getType(), MO.getTargetFlags(), MO.getMetadata()); 265d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth case MachineOperand::MO_MCSymbol: 266d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth return hash_combine(MO.getType(), MO.getTargetFlags(), MO.getMCSymbol()); 267d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth } 268d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth llvm_unreachable("Invalid machine operand type"); 269d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth} 270d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth 271f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner/// print - Print the specified machine operand. 272f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner/// 2735ca6bd14a00ba5310ce1a632d3a0cc8f8af31433Mon P Wangvoid MachineOperand::print(raw_ostream &OS, const TargetMachine *TM) const { 27480f6c5898113806130975fd56d24929b06bf54f8Dan Gohman // If the instruction is embedded into a basic block, we can find the 27580f6c5898113806130975fd56d24929b06bf54f8Dan Gohman // target info for the instruction. 27680f6c5898113806130975fd56d24929b06bf54f8Dan Gohman if (!TM) 27780f6c5898113806130975fd56d24929b06bf54f8Dan Gohman if (const MachineInstr *MI = getParent()) 27880f6c5898113806130975fd56d24929b06bf54f8Dan Gohman if (const MachineBasicBlock *MBB = MI->getParent()) 27980f6c5898113806130975fd56d24929b06bf54f8Dan Gohman if (const MachineFunction *MF = MBB->getParent()) 28080f6c5898113806130975fd56d24929b06bf54f8Dan Gohman TM = &MF->getTarget(); 2814314268128be6d54c9a7f0709680e5a5b40f3ab3Jakob Stoklund Olesen const TargetRegisterInfo *TRI = TM ? TM->getRegisterInfo() : 0; 28280f6c5898113806130975fd56d24929b06bf54f8Dan Gohman 283f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner switch (getType()) { 284f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_Register: 2854314268128be6d54c9a7f0709680e5a5b40f3ab3Jakob Stoklund Olesen OS << PrintReg(getReg(), TRI, getSubReg()); 2862ccc83966914593d98af5671ce10a3bf2dcf7513Dan Gohman 2874784f1fc73abf6005b7b7262d395af71b57b1255Evan Cheng if (isDef() || isKill() || isDead() || isImplicit() || isUndef() || 28804003451986868d201a2893c2ff2eaa0fb869aeeJakob Stoklund Olesen isInternalRead() || isEarlyClobber()) { 28931530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner OS << '<'; 290f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner bool NeedComma = false; 2910789707c49135bba69e0e308d0fbc41bb7cbe78aEvan Cheng if (isDef()) { 29231530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner if (NeedComma) OS << ','; 293913d3dfac43f29921467f33aa743f28ee1bfc5d1Dale Johannesen if (isEarlyClobber()) 294913d3dfac43f29921467f33aa743f28ee1bfc5d1Dale Johannesen OS << "earlyclobber,"; 2950789707c49135bba69e0e308d0fbc41bb7cbe78aEvan Cheng if (isImplicit()) 2960789707c49135bba69e0e308d0fbc41bb7cbe78aEvan Cheng OS << "imp-"; 297f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner OS << "def"; 298f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner NeedComma = true; 2993429c7571e87ca6070ceb1b44b1f367ce23c99f9Jakob Stoklund Olesen // <def,read-undef> only makes sense when getSubReg() is set. 3003429c7571e87ca6070ceb1b44b1f367ce23c99f9Jakob Stoklund Olesen // Don't clutter the output otherwise. 3013429c7571e87ca6070ceb1b44b1f367ce23c99f9Jakob Stoklund Olesen if (isUndef() && getSubReg()) 3023429c7571e87ca6070ceb1b44b1f367ce23c99f9Jakob Stoklund Olesen OS << ",read-undef"; 3035affca0763836e15ca15e78ed3a0fd56ef6b2e92Evan Cheng } else if (isImplicit()) { 3040789707c49135bba69e0e308d0fbc41bb7cbe78aEvan Cheng OS << "imp-use"; 3055affca0763836e15ca15e78ed3a0fd56ef6b2e92Evan Cheng NeedComma = true; 3065affca0763836e15ca15e78ed3a0fd56ef6b2e92Evan Cheng } 3070789707c49135bba69e0e308d0fbc41bb7cbe78aEvan Cheng 30841afb9da2c808409fb689288bc9b77bc817e235dJakob Stoklund Olesen if (isKill() || isDead() || (isUndef() && isUse()) || isInternalRead()) { 30931530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner if (NeedComma) OS << ','; 3102068215e8515203ab4839ee494cdc53dfd0cdf02Jakob Stoklund Olesen NeedComma = false; 3112068215e8515203ab4839ee494cdc53dfd0cdf02Jakob Stoklund Olesen if (isKill()) { 3122068215e8515203ab4839ee494cdc53dfd0cdf02Jakob Stoklund Olesen OS << "kill"; 3132068215e8515203ab4839ee494cdc53dfd0cdf02Jakob Stoklund Olesen NeedComma = true; 3142068215e8515203ab4839ee494cdc53dfd0cdf02Jakob Stoklund Olesen } 3152068215e8515203ab4839ee494cdc53dfd0cdf02Jakob Stoklund Olesen if (isDead()) { 3162068215e8515203ab4839ee494cdc53dfd0cdf02Jakob Stoklund Olesen OS << "dead"; 3172068215e8515203ab4839ee494cdc53dfd0cdf02Jakob Stoklund Olesen NeedComma = true; 3182068215e8515203ab4839ee494cdc53dfd0cdf02Jakob Stoklund Olesen } 3193429c7571e87ca6070ceb1b44b1f367ce23c99f9Jakob Stoklund Olesen if (isUndef() && isUse()) { 3202068215e8515203ab4839ee494cdc53dfd0cdf02Jakob Stoklund Olesen if (NeedComma) OS << ','; 3214784f1fc73abf6005b7b7262d395af71b57b1255Evan Cheng OS << "undef"; 3222068215e8515203ab4839ee494cdc53dfd0cdf02Jakob Stoklund Olesen NeedComma = true; 3232068215e8515203ab4839ee494cdc53dfd0cdf02Jakob Stoklund Olesen } 3242068215e8515203ab4839ee494cdc53dfd0cdf02Jakob Stoklund Olesen if (isInternalRead()) { 3252068215e8515203ab4839ee494cdc53dfd0cdf02Jakob Stoklund Olesen if (NeedComma) OS << ','; 3262068215e8515203ab4839ee494cdc53dfd0cdf02Jakob Stoklund Olesen OS << "internal"; 3272068215e8515203ab4839ee494cdc53dfd0cdf02Jakob Stoklund Olesen NeedComma = true; 3284784f1fc73abf6005b7b7262d395af71b57b1255Evan Cheng } 329f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner } 33031530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner OS << '>'; 331f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner } 332f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner break; 333f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_Immediate: 334f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner OS << getImm(); 335f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner break; 3368594d429e02c688d428036f8563f09572da3fbffDevang Patel case MachineOperand::MO_CImmediate: 3378594d429e02c688d428036f8563f09572da3fbffDevang Patel getCImm()->getValue().print(OS, false); 3388594d429e02c688d428036f8563f09572da3fbffDevang Patel break; 339e8b7ccf0c9a06831266d690d0b10ead71e0a4ac5Nate Begeman case MachineOperand::MO_FPImmediate: 340cf0fe8d813727383d630055bb9d1cde21b00b7e7Chris Lattner if (getFPImm()->getType()->isFloatTy()) 341e8b7ccf0c9a06831266d690d0b10ead71e0a4ac5Nate Begeman OS << getFPImm()->getValueAPF().convertToFloat(); 34231530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner else 343e8b7ccf0c9a06831266d690d0b10ead71e0a4ac5Nate Begeman OS << getFPImm()->getValueAPF().convertToDouble(); 344e8b7ccf0c9a06831266d690d0b10ead71e0a4ac5Nate Begeman break; 345f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_MachineBasicBlock: 3460ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman OS << "<BB#" << getMBB()->getNumber() << ">"; 347f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner break; 348f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_FrameIndex: 34931530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner OS << "<fi#" << getIndex() << '>'; 350f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner break; 351f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_ConstantPoolIndex: 3528aa797aa51cd4ea1ec6f46f4891a6897944b75b2Chris Lattner OS << "<cp#" << getIndex(); 353f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner if (getOffset()) OS << "+" << getOffset(); 35431530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner OS << '>'; 355f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner break; 356f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_JumpTableIndex: 35731530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner OS << "<jt#" << getIndex() << '>'; 358f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner break; 359f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_GlobalAddress: 3608d4e3b5b48b245ed65259270a53fcaf0bf91d9f7Dan Gohman OS << "<ga:"; 3618d4e3b5b48b245ed65259270a53fcaf0bf91d9f7Dan Gohman WriteAsOperand(OS, getGlobal(), /*PrintType=*/false); 362f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner if (getOffset()) OS << "+" << getOffset(); 36331530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner OS << '>'; 364f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner break; 365f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_ExternalSymbol: 366f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner OS << "<es:" << getSymbolName(); 367f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner if (getOffset()) OS << "+" << getOffset(); 36831530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner OS << '>'; 369f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner break; 3708c2b52552c90f39e4b2fed43e309e599e742b6acDan Gohman case MachineOperand::MO_BlockAddress: 3715f72a5ebc84a1935878b5b2d3166a505c520cdfcDale Johannesen OS << '<'; 3720ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman WriteAsOperand(OS, getBlockAddress(), /*PrintType=*/false); 3738c2b52552c90f39e4b2fed43e309e599e742b6acDan Gohman OS << '>'; 3748c2b52552c90f39e4b2fed43e309e599e742b6acDan Gohman break; 3757739cad69d2590f556afc9fc3048f967b5a3f4f6Jakob Stoklund Olesen case MachineOperand::MO_RegisterMask: 376478a8a02bc0f2e739ed8f4240152e99837e480b9Jakob Stoklund Olesen OS << "<regmask>"; 3777739cad69d2590f556afc9fc3048f967b5a3f4f6Jakob Stoklund Olesen break; 3785f72a5ebc84a1935878b5b2d3166a505c520cdfcDale Johannesen case MachineOperand::MO_Metadata: 3795f72a5ebc84a1935878b5b2d3166a505c520cdfcDale Johannesen OS << '<'; 3805f72a5ebc84a1935878b5b2d3166a505c520cdfcDale Johannesen WriteAsOperand(OS, getMetadata(), /*PrintType=*/false); 3815f72a5ebc84a1935878b5b2d3166a505c520cdfcDale Johannesen OS << '>'; 3825f72a5ebc84a1935878b5b2d3166a505c520cdfcDale Johannesen break; 38372aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner case MachineOperand::MO_MCSymbol: 38472aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner OS << "<MCSym=" << *getMCSymbol() << '>'; 38572aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner break; 386f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner } 387ee61d67c2f1105e23b2ea5110389f3b7b713b504Jim Grosbach 38831530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner if (unsigned TF = getTargetFlags()) 38931530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner OS << "[TF=" << TF << ']'; 390f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner} 391f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner 392f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner//===----------------------------------------------------------------------===// 393ce42e404a26454f4332c2c350c75ad27bbbb16f7Dan Gohman// MachineMemOperand Implementation 394ce42e404a26454f4332c2c350c75ad27bbbb16f7Dan Gohman//===----------------------------------------------------------------------===// 395ce42e404a26454f4332c2c350c75ad27bbbb16f7Dan Gohman 39640a858f6e71ed8d68779d00c63dad15baded3562Chris Lattner/// getAddrSpace - Return the LLVM IR address space number that this pointer 39740a858f6e71ed8d68779d00c63dad15baded3562Chris Lattner/// points into. 39840a858f6e71ed8d68779d00c63dad15baded3562Chris Lattnerunsigned MachinePointerInfo::getAddrSpace() const { 39940a858f6e71ed8d68779d00c63dad15baded3562Chris Lattner if (V == 0) return 0; 40040a858f6e71ed8d68779d00c63dad15baded3562Chris Lattner return cast<PointerType>(V->getType())->getAddressSpace(); 40140a858f6e71ed8d68779d00c63dad15baded3562Chris Lattner} 40240a858f6e71ed8d68779d00c63dad15baded3562Chris Lattner 403e8639036b1fb3a5b5e9589fe4e9f2ee1b77c36bdChris Lattner/// getConstantPool - Return a MachinePointerInfo record that refers to the 404e8639036b1fb3a5b5e9589fe4e9f2ee1b77c36bdChris Lattner/// constant pool. 405e8639036b1fb3a5b5e9589fe4e9f2ee1b77c36bdChris LattnerMachinePointerInfo MachinePointerInfo::getConstantPool() { 406e8639036b1fb3a5b5e9589fe4e9f2ee1b77c36bdChris Lattner return MachinePointerInfo(PseudoSourceValue::getConstantPool()); 407e8639036b1fb3a5b5e9589fe4e9f2ee1b77c36bdChris Lattner} 408e8639036b1fb3a5b5e9589fe4e9f2ee1b77c36bdChris Lattner 409e8639036b1fb3a5b5e9589fe4e9f2ee1b77c36bdChris Lattner/// getFixedStack - Return a MachinePointerInfo record that refers to the 410e8639036b1fb3a5b5e9589fe4e9f2ee1b77c36bdChris Lattner/// the specified FrameIndex. 411e8639036b1fb3a5b5e9589fe4e9f2ee1b77c36bdChris LattnerMachinePointerInfo MachinePointerInfo::getFixedStack(int FI, int64_t offset) { 412e8639036b1fb3a5b5e9589fe4e9f2ee1b77c36bdChris Lattner return MachinePointerInfo(PseudoSourceValue::getFixedStack(FI), offset); 413e8639036b1fb3a5b5e9589fe4e9f2ee1b77c36bdChris Lattner} 414e8639036b1fb3a5b5e9589fe4e9f2ee1b77c36bdChris Lattner 4151daa6f479dd5fb4123f1ffbb10a3825da7d2c6b8Chris LattnerMachinePointerInfo MachinePointerInfo::getJumpTable() { 4161daa6f479dd5fb4123f1ffbb10a3825da7d2c6b8Chris Lattner return MachinePointerInfo(PseudoSourceValue::getJumpTable()); 4171daa6f479dd5fb4123f1ffbb10a3825da7d2c6b8Chris Lattner} 4181daa6f479dd5fb4123f1ffbb10a3825da7d2c6b8Chris Lattner 4191daa6f479dd5fb4123f1ffbb10a3825da7d2c6b8Chris LattnerMachinePointerInfo MachinePointerInfo::getGOT() { 4201daa6f479dd5fb4123f1ffbb10a3825da7d2c6b8Chris Lattner return MachinePointerInfo(PseudoSourceValue::getGOT()); 4211daa6f479dd5fb4123f1ffbb10a3825da7d2c6b8Chris Lattner} 42240a858f6e71ed8d68779d00c63dad15baded3562Chris Lattner 423fc448ff89b4fb7721de9da0b96fd00c13160c4c7Chris LattnerMachinePointerInfo MachinePointerInfo::getStack(int64_t Offset) { 424fc448ff89b4fb7721de9da0b96fd00c13160c4c7Chris Lattner return MachinePointerInfo(PseudoSourceValue::getStack(), Offset); 425fc448ff89b4fb7721de9da0b96fd00c13160c4c7Chris Lattner} 426fc448ff89b4fb7721de9da0b96fd00c13160c4c7Chris Lattner 427da39c3964423744b4d79aebef8bece3e9141d5fcChris LattnerMachineMemOperand::MachineMemOperand(MachinePointerInfo ptrinfo, unsigned f, 428f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman uint64_t s, unsigned int a, 42995d594cac3737ae1594a391276942a443cac426bRafael Espindola const MDNode *TBAAInfo, 43095d594cac3737ae1594a391276942a443cac426bRafael Espindola const MDNode *Ranges) 431da39c3964423744b4d79aebef8bece3e9141d5fcChris Lattner : PtrInfo(ptrinfo), Size(s), 432f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman Flags((f & ((1 << MOMaxBits) - 1)) | ((Log2_32(a) + 1) << MOMaxBits)), 43395d594cac3737ae1594a391276942a443cac426bRafael Espindola TBAAInfo(TBAAInfo), Ranges(Ranges) { 434da39c3964423744b4d79aebef8bece3e9141d5fcChris Lattner assert((PtrInfo.V == 0 || isa<PointerType>(PtrInfo.V->getType())) && 435da39c3964423744b4d79aebef8bece3e9141d5fcChris Lattner "invalid pointer value"); 43628f02fdd76f4efc05d14649e0eec90ce8e71e17eDan Gohman assert(getBaseAlignment() == a && "Alignment is not a power of 2!"); 437c5e1f98fdf44993c2bfe4c1ef633b2358cd718c1Dan Gohman assert((isLoad() || isStore()) && "Not a load/store!"); 438ce42e404a26454f4332c2c350c75ad27bbbb16f7Dan Gohman} 439ce42e404a26454f4332c2c350c75ad27bbbb16f7Dan Gohman 440b8d2f550b84523e8a73198f98e5d450ec3b4fee7Dan Gohman/// Profile - Gather unique data for the object. 441b8d2f550b84523e8a73198f98e5d450ec3b4fee7Dan Gohman/// 442b8d2f550b84523e8a73198f98e5d450ec3b4fee7Dan Gohmanvoid MachineMemOperand::Profile(FoldingSetNodeID &ID) const { 443e8e2e80f40495fdd5ad475beb54fcf0989b6b7c5Chris Lattner ID.AddInteger(getOffset()); 444b8d2f550b84523e8a73198f98e5d450ec3b4fee7Dan Gohman ID.AddInteger(Size); 445e8e2e80f40495fdd5ad475beb54fcf0989b6b7c5Chris Lattner ID.AddPointer(getValue()); 446b8d2f550b84523e8a73198f98e5d450ec3b4fee7Dan Gohman ID.AddInteger(Flags); 447b8d2f550b84523e8a73198f98e5d450ec3b4fee7Dan Gohman} 448b8d2f550b84523e8a73198f98e5d450ec3b4fee7Dan Gohman 449c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohmanvoid MachineMemOperand::refineAlignment(const MachineMemOperand *MMO) { 450c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman // The Value and Offset may differ due to CSE. But the flags and size 451c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman // should be the same. 452c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman assert(MMO->getFlags() == getFlags() && "Flags mismatch!"); 453c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman assert(MMO->getSize() == getSize() && "Size mismatch!"); 454c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman 455c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman if (MMO->getBaseAlignment() >= getBaseAlignment()) { 456c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman // Update the alignment value. 457ba2b297ca53cd685ba397177e9d2d8c239da971eDavid Greene Flags = (Flags & ((1 << MOMaxBits) - 1)) | 458ba2b297ca53cd685ba397177e9d2d8c239da971eDavid Greene ((Log2_32(MMO->getBaseAlignment()) + 1) << MOMaxBits); 459c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman // Also update the base and offset, because the new alignment may 460c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman // not be applicable with the old ones. 461e8e2e80f40495fdd5ad475beb54fcf0989b6b7c5Chris Lattner PtrInfo = MMO->PtrInfo; 462c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman } 463c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman} 464c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman 4654b2ebc19288491cb068f268c311d9fef0ec6a29fDan Gohman/// getAlignment - Return the minimum known alignment in bytes of the 4664b2ebc19288491cb068f268c311d9fef0ec6a29fDan Gohman/// actual memory reference. 4674b2ebc19288491cb068f268c311d9fef0ec6a29fDan Gohmanuint64_t MachineMemOperand::getAlignment() const { 4684b2ebc19288491cb068f268c311d9fef0ec6a29fDan Gohman return MinAlign(getBaseAlignment(), getOffset()); 4694b2ebc19288491cb068f268c311d9fef0ec6a29fDan Gohman} 4704b2ebc19288491cb068f268c311d9fef0ec6a29fDan Gohman 471c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohmanraw_ostream &llvm::operator<<(raw_ostream &OS, const MachineMemOperand &MMO) { 472c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman assert((MMO.isLoad() || MMO.isStore()) && 473cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman "SV has to be a load, store or both."); 474ee61d67c2f1105e23b2ea5110389f3b7b713b504Jim Grosbach 475c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman if (MMO.isVolatile()) 476cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman OS << "Volatile "; 477cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman 478c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman if (MMO.isLoad()) 479cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman OS << "LD"; 480c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman if (MMO.isStore()) 481cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman OS << "ST"; 482c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman OS << MMO.getSize(); 483ee61d67c2f1105e23b2ea5110389f3b7b713b504Jim Grosbach 484cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman // Print the address information. 485cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman OS << "["; 486c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman if (!MMO.getValue()) 487cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman OS << "<unknown>"; 488cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman else 489c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman WriteAsOperand(OS, MMO.getValue(), /*PrintType=*/false); 490cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman 491cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman // If the alignment of the memory reference itself differs from the alignment 492cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman // of the base pointer, print the base alignment explicitly, next to the base 493cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman // pointer. 494c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman if (MMO.getBaseAlignment() != MMO.getAlignment()) 495c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman OS << "(align=" << MMO.getBaseAlignment() << ")"; 496cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman 497c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman if (MMO.getOffset() != 0) 498c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman OS << "+" << MMO.getOffset(); 499cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman OS << "]"; 500cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman 501cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman // Print the alignment of the reference. 502c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman if (MMO.getBaseAlignment() != MMO.getAlignment() || 503c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman MMO.getBaseAlignment() != MMO.getSize()) 504c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman OS << "(align=" << MMO.getAlignment() << ")"; 505cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman 506f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman // Print TBAA info. 507f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman if (const MDNode *TBAAInfo = MMO.getTBAAInfo()) { 508f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman OS << "(tbaa="; 509f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman if (TBAAInfo->getNumOperands() > 0) 510f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman WriteAsOperand(OS, TBAAInfo->getOperand(0), /*PrintType=*/false); 511f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman else 512f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman OS << "<unknown>"; 513f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman OS << ")"; 514f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman } 515f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman 516d65ba721cccb0d0998750908bf2533e08b106f38Bill Wendling // Print nontemporal info. 517d65ba721cccb0d0998750908bf2533e08b106f38Bill Wendling if (MMO.isNonTemporal()) 518d65ba721cccb0d0998750908bf2533e08b106f38Bill Wendling OS << "(nontemporal)"; 519d65ba721cccb0d0998750908bf2533e08b106f38Bill Wendling 520cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman return OS; 521cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman} 522cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman 523ce42e404a26454f4332c2c350c75ad27bbbb16f7Dan Gohman//===----------------------------------------------------------------------===// 524f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner// MachineInstr Implementation 525f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner//===----------------------------------------------------------------------===// 526f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner 527c0f64ffab93d11fb27a3b8a0707b77400918a20eEvan Cheng/// MachineInstr ctor - This constructor creates a dummy MachineInstr with 528e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng/// MCID NULL and no operands. 529c0f64ffab93d11fb27a3b8a0707b77400918a20eEvan ChengMachineInstr::MachineInstr() 530cc84cda91997bf6fc93512a56c3a12eecaaa2d88Jakob Stoklund Olesen : MCID(0), Flags(0), AsmPrinterFlags(0), 531861ea230a7841fe4ccc8a1cd5460354e59aeed3cBenjamin Kramer NumMemRefs(0), MemRefs(0), 532a4f2bb08de92ccec21cbb3d0a9518384b0173660Chris Lattner Parent(0) { 5332c3f7ae3843bdc9dcfe85393e178211976c1f9bdDan Gohman // Make sure that we get added to a machine basicblock 5342c3f7ae3843bdc9dcfe85393e178211976c1f9bdDan Gohman LeakDetector::addGarbageObject(this); 5357279122e668816bed0d4f38d3392bbab0140fad0Chris Lattner} 5367279122e668816bed0d4f38d3392bbab0140fad0Chris Lattner 53767f660cb080965ea93ed6d7265a67100f2fe38e4Evan Chengvoid MachineInstr::addImplicitDefUseOperands() { 538e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng if (MCID->ImplicitDefs) 539fac259814923d091942b230e7bd002a8d1130bc3Craig Topper for (const uint16_t *ImpDefs = MCID->getImplicitDefs(); *ImpDefs; ++ImpDefs) 5408019f41c0b7fda031d494e3900eada7d4e494772Chris Lattner addOperand(MachineOperand::CreateReg(*ImpDefs, true, true)); 541e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng if (MCID->ImplicitUses) 542fac259814923d091942b230e7bd002a8d1130bc3Craig Topper for (const uint16_t *ImpUses = MCID->getImplicitUses(); *ImpUses; ++ImpUses) 5438019f41c0b7fda031d494e3900eada7d4e494772Chris Lattner addOperand(MachineOperand::CreateReg(*ImpUses, false, true)); 544d7de496b23fca8145f777a56281457bf64e8bbadEvan Cheng} 545d7de496b23fca8145f777a56281457bf64e8bbadEvan Cheng 5460855cadb00c598d4e78c8f1842a9c1b9bf19c667Bob Wilson/// MachineInstr ctor - This constructor creates a MachineInstr and adds the 5470855cadb00c598d4e78c8f1842a9c1b9bf19c667Bob Wilson/// implicit operands. It reserves space for the number of operands specified by 548e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng/// the MCInstrDesc. 549e837dead3c8dc3445ef6a0e2322179c57e264a13Evan ChengMachineInstr::MachineInstr(const MCInstrDesc &tid, bool NoImp) 550cc84cda91997bf6fc93512a56c3a12eecaaa2d88Jakob Stoklund Olesen : MCID(&tid), Flags(0), AsmPrinterFlags(0), 551861ea230a7841fe4ccc8a1cd5460354e59aeed3cBenjamin Kramer NumMemRefs(0), MemRefs(0), Parent(0) { 552cc84cda91997bf6fc93512a56c3a12eecaaa2d88Jakob Stoklund Olesen unsigned NumImplicitOps = 0; 5531793ab9e70c48146a5f1592b84b2b93e38c67fa4Bob Wilson if (!NoImp) 554e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng NumImplicitOps = MCID->getNumImplicitDefs() + MCID->getNumImplicitUses(); 555e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng Operands.reserve(NumImplicitOps + MCID->getNumOperands()); 556fa9457276a2174aaf302240dd32d89900ad021aeEvan Cheng if (!NoImp) 557fa9457276a2174aaf302240dd32d89900ad021aeEvan Cheng addImplicitDefUseOperands(); 5582c3f7ae3843bdc9dcfe85393e178211976c1f9bdDan Gohman // Make sure that we get added to a machine basicblock 5592c3f7ae3843bdc9dcfe85393e178211976c1f9bdDan Gohman LeakDetector::addGarbageObject(this); 560d7de496b23fca8145f777a56281457bf64e8bbadEvan Cheng} 561d7de496b23fca8145f777a56281457bf64e8bbadEvan Cheng 56206efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen/// MachineInstr ctor - As above, but with a DebugLoc. 563e837dead3c8dc3445ef6a0e2322179c57e264a13Evan ChengMachineInstr::MachineInstr(const MCInstrDesc &tid, const DebugLoc dl, 56406efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen bool NoImp) 565cc84cda91997bf6fc93512a56c3a12eecaaa2d88Jakob Stoklund Olesen : MCID(&tid), Flags(0), AsmPrinterFlags(0), 566861ea230a7841fe4ccc8a1cd5460354e59aeed3cBenjamin Kramer NumMemRefs(0), MemRefs(0), Parent(0), debugLoc(dl) { 567cc84cda91997bf6fc93512a56c3a12eecaaa2d88Jakob Stoklund Olesen unsigned NumImplicitOps = 0; 5681793ab9e70c48146a5f1592b84b2b93e38c67fa4Bob Wilson if (!NoImp) 569e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng NumImplicitOps = MCID->getNumImplicitDefs() + MCID->getNumImplicitUses(); 570e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng Operands.reserve(NumImplicitOps + MCID->getNumOperands()); 57106efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen if (!NoImp) 57206efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen addImplicitDefUseOperands(); 57306efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen // Make sure that we get added to a machine basicblock 57406efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen LeakDetector::addGarbageObject(this); 57506efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen} 57606efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen 57706efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen/// MachineInstr ctor - Work exactly the same as the ctor two above, except 578ee61d67c2f1105e23b2ea5110389f3b7b713b504Jim Grosbach/// that the MachineInstr is created and added to the end of the specified 57906efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen/// basic block. 580e837dead3c8dc3445ef6a0e2322179c57e264a13Evan ChengMachineInstr::MachineInstr(MachineBasicBlock *MBB, const MCInstrDesc &tid) 581cc84cda91997bf6fc93512a56c3a12eecaaa2d88Jakob Stoklund Olesen : MCID(&tid), Flags(0), AsmPrinterFlags(0), 582861ea230a7841fe4ccc8a1cd5460354e59aeed3cBenjamin Kramer NumMemRefs(0), MemRefs(0), Parent(0) { 58306efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen assert(MBB && "Cannot use inserting ctor with null basic block!"); 584cc84cda91997bf6fc93512a56c3a12eecaaa2d88Jakob Stoklund Olesen unsigned NumImplicitOps = 585cc84cda91997bf6fc93512a56c3a12eecaaa2d88Jakob Stoklund Olesen MCID->getNumImplicitDefs() + MCID->getNumImplicitUses(); 586e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng Operands.reserve(NumImplicitOps + MCID->getNumOperands()); 58706efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen addImplicitDefUseOperands(); 58806efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen // Make sure that we get added to a machine basicblock 58906efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen LeakDetector::addGarbageObject(this); 59006efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen MBB->push_back(this); // Add instruction to end of basic block! 59106efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen} 59206efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen 59306efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen/// MachineInstr ctor - As above, but with a DebugLoc. 594ddd7fcb887be752ec8167276a697994ad9cb9c4eChris Lattner/// 59506efc02854a96a9f92edc3bf46b0451f488cf2e6Dale JohannesenMachineInstr::MachineInstr(MachineBasicBlock *MBB, const DebugLoc dl, 596e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng const MCInstrDesc &tid) 597cc84cda91997bf6fc93512a56c3a12eecaaa2d88Jakob Stoklund Olesen : MCID(&tid), Flags(0), AsmPrinterFlags(0), 598861ea230a7841fe4ccc8a1cd5460354e59aeed3cBenjamin Kramer NumMemRefs(0), MemRefs(0), Parent(0), debugLoc(dl) { 599ddd7fcb887be752ec8167276a697994ad9cb9c4eChris Lattner assert(MBB && "Cannot use inserting ctor with null basic block!"); 600cc84cda91997bf6fc93512a56c3a12eecaaa2d88Jakob Stoklund Olesen unsigned NumImplicitOps = 601cc84cda91997bf6fc93512a56c3a12eecaaa2d88Jakob Stoklund Olesen MCID->getNumImplicitDefs() + MCID->getNumImplicitUses(); 602e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng Operands.reserve(NumImplicitOps + MCID->getNumOperands()); 60367f660cb080965ea93ed6d7265a67100f2fe38e4Evan Cheng addImplicitDefUseOperands(); 6042c3f7ae3843bdc9dcfe85393e178211976c1f9bdDan Gohman // Make sure that we get added to a machine basicblock 6052c3f7ae3843bdc9dcfe85393e178211976c1f9bdDan Gohman LeakDetector::addGarbageObject(this); 606ddd7fcb887be752ec8167276a697994ad9cb9c4eChris Lattner MBB->push_back(this); // Add instruction to end of basic block! 607ddd7fcb887be752ec8167276a697994ad9cb9c4eChris Lattner} 608ddd7fcb887be752ec8167276a697994ad9cb9c4eChris Lattner 609ce22e76996d3ff0930716fa60c29df60a7e0481bMisha Brukman/// MachineInstr ctor - Copies MachineInstr arg exactly 610ce22e76996d3ff0930716fa60c29df60a7e0481bMisha Brukman/// 6111ed9922794cda9dbe295e74674b909287e544632Evan ChengMachineInstr::MachineInstr(MachineFunction &MF, const MachineInstr &MI) 612cc84cda91997bf6fc93512a56c3a12eecaaa2d88Jakob Stoklund Olesen : MCID(&MI.getDesc()), Flags(0), AsmPrinterFlags(0), 613861ea230a7841fe4ccc8a1cd5460354e59aeed3cBenjamin Kramer NumMemRefs(MI.NumMemRefs), MemRefs(MI.MemRefs), 614c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman Parent(0), debugLoc(MI.getDebugLoc()) { 615943b5e117fe9a087f9aa529a2632c2d32cc22374Chris Lattner Operands.reserve(MI.getNumOperands()); 616b5159ed0cb7943e5938782f7693beb18342165ceTanya Lattner 617ce22e76996d3ff0930716fa60c29df60a7e0481bMisha Brukman // Add operands 6181ed9922794cda9dbe295e74674b909287e544632Evan Cheng for (unsigned i = 0; i != MI.getNumOperands(); ++i) 6191ed9922794cda9dbe295e74674b909287e544632Evan Cheng addOperand(MI.getOperand(i)); 6200c63e03e04d3982e1913479bba404c3debc9a27eTanya Lattner 6216dd97471c43805b3febf598d50498a09a02e93f4Anton Korobeynikov // Copy all the flags. 6226dd97471c43805b3febf598d50498a09a02e93f4Anton Korobeynikov Flags = MI.Flags; 6236dd97471c43805b3febf598d50498a09a02e93f4Anton Korobeynikov 6248e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman // Set parent to null. 625f20c1a497fe3922ac718429d65a5fe396890575eChris Lattner Parent = 0; 6266116a73da420d9b414a34ce2599dc7f6476e23fcDan Gohman 6276116a73da420d9b414a34ce2599dc7f6476e23fcDan Gohman LeakDetector::addGarbageObject(this); 628466b534a570f574ed485d875bbca8454f68dcb52Tanya Lattner} 629466b534a570f574ed485d875bbca8454f68dcb52Tanya Lattner 630ce22e76996d3ff0930716fa60c29df60a7e0481bMisha BrukmanMachineInstr::~MachineInstr() { 6312c3f7ae3843bdc9dcfe85393e178211976c1f9bdDan Gohman LeakDetector::removeGarbageObject(this); 632e12d6abfdfc5141b2001f0c369a0e1525315b9c0Chris Lattner#ifndef NDEBUG 63362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner for (unsigned i = 0, e = Operands.size(); i != e; ++i) { 634e12d6abfdfc5141b2001f0c369a0e1525315b9c0Chris Lattner assert(Operands[i].ParentMI == this && "ParentMI mismatch!"); 635d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman assert((!Operands[i].isReg() || !Operands[i].isOnRegUseList()) && 63662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner "Reg operand def/use list corrupted"); 63762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 638e12d6abfdfc5141b2001f0c369a0e1525315b9c0Chris Lattner#endif 639aad5c0505183a5b7913f1a443a1f0650122551ccAlkis Evlogimenos} 640aad5c0505183a5b7913f1a443a1f0650122551ccAlkis Evlogimenos 64162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// getRegInfo - If this instruction is embedded into a MachineFunction, 64262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// return the MachineRegisterInfo object for the current function, otherwise 64362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// return null. 64462ed6b9ade63bf01717ce5274fa11e93e873d245Chris LattnerMachineRegisterInfo *MachineInstr::getRegInfo() { 64562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (MachineBasicBlock *MBB = getParent()) 6464e526b9a5b36d9bac170c03df0a5d6fb76740ae2Dan Gohman return &MBB->getParent()->getRegInfo(); 64762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner return 0; 64862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner} 64962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 65062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// RemoveRegOperandsFromUseLists - Unlink all of the register operands in 65162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// this instruction from their respective use lists. This requires that the 65262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// operands already be on their use lists. 65362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattnervoid MachineInstr::RemoveRegOperandsFromUseLists() { 65462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner for (unsigned i = 0, e = Operands.size(); i != e; ++i) { 655d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (Operands[i].isReg()) 65662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands[i].RemoveRegOperandFromRegInfo(); 65762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 65862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner} 65962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 66062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// AddRegOperandsToUseLists - Add all of the register operands in 66162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// this instruction from their respective use lists. This requires that the 66262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// operands not be on their use lists yet. 66362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattnervoid MachineInstr::AddRegOperandsToUseLists(MachineRegisterInfo &RegInfo) { 66462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner for (unsigned i = 0, e = Operands.size(); i != e; ++i) { 665d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (Operands[i].isReg()) 66662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands[i].AddRegOperandToRegInfo(&RegInfo); 66762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 66862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner} 66962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 67062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 67162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// addOperand - Add the specified operand to the instruction. If it is an 67262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// implicit operand, it is added to the end of the operand list. If it is 67362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// an explicit operand it is added at the end of the explicit operand list 674ee61d67c2f1105e23b2ea5110389f3b7b713b504Jim Grosbach/// (before the first implicit operand). 67562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattnervoid MachineInstr::addOperand(const MachineOperand &Op) { 6763627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen assert(MCID && "Cannot add operands before providing an instr descriptor"); 677d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman bool isImpReg = Op.isReg() && Op.isImplicit(); 678bcf28c08b3f0a3c4aa1be8f1485f6452d9a2b690Dan Gohman MachineRegisterInfo *RegInfo = getRegInfo(); 679bcf28c08b3f0a3c4aa1be8f1485f6452d9a2b690Dan Gohman 6803627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen // If the Operands backing store is reallocated, all register operands must 6813627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen // be removed and re-added to RegInfo. It is storing pointers to operands. 6823627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen bool Reallocate = RegInfo && 6833627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen !Operands.empty() && Operands.size() == Operands.capacity(); 6843627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen 6853627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen // Find the insert location for the new operand. Implicit registers go at 6863627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen // the end, everything goes before the implicit regs. 6873627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen unsigned OpNo = Operands.size(); 6883627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen 6893627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen // Remove all the implicit operands from RegInfo if they need to be shifted. 6903627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen // FIXME: Allow mixed explicit and implicit operands on inline asm. 6913627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen // InstrEmitter::EmitSpecialNode() is marking inline asm clobbers as 6923627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen // implicit-defs, but they must not be moved around. See the FIXME in 6933627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen // InstrEmitter.cpp. 6943627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen if (!isImpReg && !isInlineAsm()) { 6953627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen while (OpNo && Operands[OpNo-1].isReg() && Operands[OpNo-1].isImplicit()) { 6963627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen --OpNo; 6973627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen if (RegInfo) 6983627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen Operands[OpNo].RemoveRegOperandFromRegInfo(); 69962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 70062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 701ee61d67c2f1105e23b2ea5110389f3b7b713b504Jim Grosbach 7023627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen // OpNo now points as the desired insertion point. Unless this is a variadic 7033627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen // instruction, only implicit regs are allowed beyond MCID->getNumOperands(). 70433a537a5c41e60507ac9a4ea987c1a395cbb74feJakob Stoklund Olesen // RegMask operands go between the explicit and implicit operands. 70533a537a5c41e60507ac9a4ea987c1a395cbb74feJakob Stoklund Olesen assert((isImpReg || Op.isRegMask() || MCID->isVariadic() || 70633a537a5c41e60507ac9a4ea987c1a395cbb74feJakob Stoklund Olesen OpNo < MCID->getNumOperands()) && 7073627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen "Trying to add an operand to a machine instr that is already done!"); 70862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 7093627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen // All operands from OpNo have been removed from RegInfo. If the Operands 7103627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen // backing store needs to be reallocated, we also need to remove any other 7113627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen // register operands. 7123627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen if (Reallocate) 7133627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen for (unsigned i = 0; i != OpNo; ++i) 7143627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen if (Operands[i].isReg()) 7153627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen Operands[i].RemoveRegOperandFromRegInfo(); 716ee61d67c2f1105e23b2ea5110389f3b7b713b504Jim Grosbach 7173627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen // Insert the new operand at OpNo. 7183627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen Operands.insert(Operands.begin() + OpNo, Op); 7193627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen Operands[OpNo].ParentMI = this; 720ee61d67c2f1105e23b2ea5110389f3b7b713b504Jim Grosbach 7213627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen // The Operands backing store has now been reallocated, so we can re-add the 7223627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen // operands before OpNo. 7233627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen if (Reallocate) 7243627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen for (unsigned i = 0; i != OpNo; ++i) 7253627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen if (Operands[i].isReg()) 7263627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen Operands[i].AddRegOperandToRegInfo(RegInfo); 72762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 7283627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen // When adding a register operand, tell RegInfo about it. 7293627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen if (Operands[OpNo].isReg()) { 7303627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen // Add the new operand to RegInfo, even when RegInfo is NULL. 7313627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen // This will initialize the linked list pointers. 7323627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen Operands[OpNo].AddRegOperandToRegInfo(RegInfo); 7333627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen // If the register operand is flagged as early, mark the operand as such. 7343627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen if (MCID->getOperandConstraint(OpNo, MCOI::EARLY_CLOBBER) != -1) 7353627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen Operands[OpNo].setIsEarlyClobber(true); 7363627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen } 737ee61d67c2f1105e23b2ea5110389f3b7b713b504Jim Grosbach 7383627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen // Re-add all the implicit ops. 7393627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen if (RegInfo) { 7403627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen for (unsigned i = OpNo + 1, e = Operands.size(); i != e; ++i) { 741d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman assert(Operands[i].isReg() && "Should only be an implicit reg!"); 74262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands[i].AddRegOperandToRegInfo(RegInfo); 74362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 74462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 74562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner} 74662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 74762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// RemoveOperand - Erase an operand from an instruction, leaving it with one 74862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// fewer operand than it started with. 74962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// 75062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattnervoid MachineInstr::RemoveOperand(unsigned OpNo) { 75162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner assert(OpNo < Operands.size() && "Invalid operand number"); 752ee61d67c2f1105e23b2ea5110389f3b7b713b504Jim Grosbach 75362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Special case removing the last one. 75462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (OpNo == Operands.size()-1) { 75562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // If needed, remove from the reg def/use list. 756d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (Operands.back().isReg() && Operands.back().isOnRegUseList()) 75762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands.back().RemoveRegOperandFromRegInfo(); 758ee61d67c2f1105e23b2ea5110389f3b7b713b504Jim Grosbach 75962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands.pop_back(); 76062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner return; 76162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 76262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 76362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Otherwise, we are removing an interior operand. If we have reginfo to 76462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // update, remove all operands that will be shifted down from their reg lists, 76562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // move everything down, then re-add them. 76662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner MachineRegisterInfo *RegInfo = getRegInfo(); 76762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (RegInfo) { 76862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner for (unsigned i = OpNo, e = Operands.size(); i != e; ++i) { 769d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (Operands[i].isReg()) 77062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands[i].RemoveRegOperandFromRegInfo(); 77162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 77262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 773ee61d67c2f1105e23b2ea5110389f3b7b713b504Jim Grosbach 77462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands.erase(Operands.begin()+OpNo); 77562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 77662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (RegInfo) { 77762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner for (unsigned i = OpNo, e = Operands.size(); i != e; ++i) { 778d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (Operands[i].isReg()) 77962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands[i].AddRegOperandToRegInfo(RegInfo); 78062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 78162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 78262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner} 78362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 784c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman/// addMemOperand - Add a MachineMemOperand to the machine instruction. 785c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman/// This function should be used only occasionally. The setMemRefs function 786c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman/// is the primary method for setting up a MachineInstr's MemRefs list. 7878e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohmanvoid MachineInstr::addMemOperand(MachineFunction &MF, 788c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman MachineMemOperand *MO) { 789c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman mmo_iterator OldMemRefs = MemRefs; 790861ea230a7841fe4ccc8a1cd5460354e59aeed3cBenjamin Kramer uint16_t OldNumMemRefs = NumMemRefs; 7918e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman 792861ea230a7841fe4ccc8a1cd5460354e59aeed3cBenjamin Kramer uint16_t NewNum = NumMemRefs + 1; 793c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman mmo_iterator NewMemRefs = MF.allocateMemRefsArray(NewNum); 7948e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman 795861ea230a7841fe4ccc8a1cd5460354e59aeed3cBenjamin Kramer std::copy(OldMemRefs, OldMemRefs + OldNumMemRefs, NewMemRefs); 796c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman NewMemRefs[NewNum - 1] = MO; 797c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman 798c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman MemRefs = NewMemRefs; 799861ea230a7841fe4ccc8a1cd5460354e59aeed3cBenjamin Kramer NumMemRefs = NewNum; 800c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman} 80162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 80285f9cef27e6b2605e67e94afc949f5b5f5b90668Benjamin Kramerbool MachineInstr::hasPropertyInBundle(unsigned Mask, QueryType Type) const { 8037c2a4a30e0e16762c75adacebd05ec9fcbccf16bEvan Cheng const MachineBasicBlock *MBB = getParent(); 804ddfd1377d2e4154d44dc3ad217735adc15af2e3fEvan Cheng MachineBasicBlock::const_instr_iterator MII = *this; ++MII; 8057c2a4a30e0e16762c75adacebd05ec9fcbccf16bEvan Cheng while (MII != MBB->end() && MII->isInsideBundle()) { 80685f9cef27e6b2605e67e94afc949f5b5f5b90668Benjamin Kramer if (MII->getDesc().getFlags() & Mask) { 80743d5d4ca1c93529c43e78cc5aa03c4ee10a6b0d8Evan Cheng if (Type == AnyInBundle) 8085a96b3dad2f634c9081c8b2b6c2575441dc5a2bdEvan Cheng return true; 8095a96b3dad2f634c9081c8b2b6c2575441dc5a2bdEvan Cheng } else { 81043d5d4ca1c93529c43e78cc5aa03c4ee10a6b0d8Evan Cheng if (Type == AllInBundle) 8115a96b3dad2f634c9081c8b2b6c2575441dc5a2bdEvan Cheng return false; 8125a96b3dad2f634c9081c8b2b6c2575441dc5a2bdEvan Cheng } 8137c2a4a30e0e16762c75adacebd05ec9fcbccf16bEvan Cheng ++MII; 8147c2a4a30e0e16762c75adacebd05ec9fcbccf16bEvan Cheng } 8155a96b3dad2f634c9081c8b2b6c2575441dc5a2bdEvan Cheng 81643d5d4ca1c93529c43e78cc5aa03c4ee10a6b0d8Evan Cheng return Type == AllInBundle; 8177c2a4a30e0e16762c75adacebd05ec9fcbccf16bEvan Cheng} 8187c2a4a30e0e16762c75adacebd05ec9fcbccf16bEvan Cheng 819506049f29f4f202a8e45feb916cc0264440a7f6dEvan Chengbool MachineInstr::isIdenticalTo(const MachineInstr *Other, 820506049f29f4f202a8e45feb916cc0264440a7f6dEvan Cheng MICheckType Check) const { 82134cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng // If opcodes or number of operands are not the same then the two 82234cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng // instructions are obviously not identical. 82334cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng if (Other->getOpcode() != getOpcode() || 82434cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng Other->getNumOperands() != getNumOperands()) 82534cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng return false; 82634cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng 827ddfd1377d2e4154d44dc3ad217735adc15af2e3fEvan Cheng if (isBundle()) { 828ddfd1377d2e4154d44dc3ad217735adc15af2e3fEvan Cheng // Both instructions are bundles, compare MIs inside the bundle. 829ddfd1377d2e4154d44dc3ad217735adc15af2e3fEvan Cheng MachineBasicBlock::const_instr_iterator I1 = *this; 830ddfd1377d2e4154d44dc3ad217735adc15af2e3fEvan Cheng MachineBasicBlock::const_instr_iterator E1 = getParent()->instr_end(); 831ddfd1377d2e4154d44dc3ad217735adc15af2e3fEvan Cheng MachineBasicBlock::const_instr_iterator I2 = *Other; 832ddfd1377d2e4154d44dc3ad217735adc15af2e3fEvan Cheng MachineBasicBlock::const_instr_iterator E2= Other->getParent()->instr_end(); 833ddfd1377d2e4154d44dc3ad217735adc15af2e3fEvan Cheng while (++I1 != E1 && I1->isInsideBundle()) { 834ddfd1377d2e4154d44dc3ad217735adc15af2e3fEvan Cheng ++I2; 835ddfd1377d2e4154d44dc3ad217735adc15af2e3fEvan Cheng if (I2 == E2 || !I2->isInsideBundle() || !I1->isIdenticalTo(I2, Check)) 836ddfd1377d2e4154d44dc3ad217735adc15af2e3fEvan Cheng return false; 837ddfd1377d2e4154d44dc3ad217735adc15af2e3fEvan Cheng } 838ddfd1377d2e4154d44dc3ad217735adc15af2e3fEvan Cheng } 839ddfd1377d2e4154d44dc3ad217735adc15af2e3fEvan Cheng 84034cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng // Check operands to make sure they match. 84134cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 84234cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng const MachineOperand &MO = getOperand(i); 84334cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng const MachineOperand &OMO = Other->getOperand(i); 844cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng if (!MO.isReg()) { 845cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng if (!MO.isIdenticalTo(OMO)) 846cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng return false; 847cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng continue; 848cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng } 849cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng 85034cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng // Clients may or may not want to ignore defs when testing for equality. 85134cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng // For example, machine CSE pass only cares about finding common 85234cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng // subexpressions, so it's safe to ignore virtual register defs. 853cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng if (MO.isDef()) { 85434cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng if (Check == IgnoreDefs) 85534cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng continue; 856cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng else if (Check == IgnoreVRegDefs) { 857cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng if (TargetRegisterInfo::isPhysicalRegister(MO.getReg()) || 858cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng TargetRegisterInfo::isPhysicalRegister(OMO.getReg())) 859cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng if (MO.getReg() != OMO.getReg()) 860cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng return false; 861cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng } else { 862cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng if (!MO.isIdenticalTo(OMO)) 863cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng return false; 864cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng if (Check == CheckKillDead && MO.isDead() != OMO.isDead()) 86534cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng return false; 866cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng } 867cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng } else { 868cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng if (!MO.isIdenticalTo(OMO)) 869cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng return false; 870cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng if (Check == CheckKillDead && MO.isKill() != OMO.isKill()) 871cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng return false; 872cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng } 87334cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng } 8749194c6716be13e2b8d2cf8e45273bf6c79f8b32cDevang Patel // If DebugLoc does not match then two dbg.values are not identical. 8759194c6716be13e2b8d2cf8e45273bf6c79f8b32cDevang Patel if (isDebugValue()) 8769194c6716be13e2b8d2cf8e45273bf6c79f8b32cDevang Patel if (!getDebugLoc().isUnknown() && !Other->getDebugLoc().isUnknown() 8779194c6716be13e2b8d2cf8e45273bf6c79f8b32cDevang Patel && getDebugLoc() != Other->getDebugLoc()) 8789194c6716be13e2b8d2cf8e45273bf6c79f8b32cDevang Patel return false; 87934cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng return true; 880506049f29f4f202a8e45feb916cc0264440a7f6dEvan Cheng} 881506049f29f4f202a8e45feb916cc0264440a7f6dEvan Cheng 88248d7c069c76882475c23de153bda9483cd3c9bb4Chris Lattner/// removeFromParent - This method unlinks 'this' from the containing basic 88348d7c069c76882475c23de153bda9483cd3c9bb4Chris Lattner/// block, and returns it, but does not delete it. 88448d7c069c76882475c23de153bda9483cd3c9bb4Chris LattnerMachineInstr *MachineInstr::removeFromParent() { 88548d7c069c76882475c23de153bda9483cd3c9bb4Chris Lattner assert(getParent() && "Not embedded in a basic block!"); 8867c2a4a30e0e16762c75adacebd05ec9fcbccf16bEvan Cheng 8877c2a4a30e0e16762c75adacebd05ec9fcbccf16bEvan Cheng // If it's a bundle then remove the MIs inside the bundle as well. 888ddfd1377d2e4154d44dc3ad217735adc15af2e3fEvan Cheng if (isBundle()) { 8897c2a4a30e0e16762c75adacebd05ec9fcbccf16bEvan Cheng MachineBasicBlock *MBB = getParent(); 890ddfd1377d2e4154d44dc3ad217735adc15af2e3fEvan Cheng MachineBasicBlock::instr_iterator MII = *this; ++MII; 891ddfd1377d2e4154d44dc3ad217735adc15af2e3fEvan Cheng MachineBasicBlock::instr_iterator E = MBB->instr_end(); 892ddfd1377d2e4154d44dc3ad217735adc15af2e3fEvan Cheng while (MII != E && MII->isInsideBundle()) { 8937c2a4a30e0e16762c75adacebd05ec9fcbccf16bEvan Cheng MachineInstr *MI = &*MII; 8947c2a4a30e0e16762c75adacebd05ec9fcbccf16bEvan Cheng ++MII; 8957c2a4a30e0e16762c75adacebd05ec9fcbccf16bEvan Cheng MBB->remove(MI); 8967c2a4a30e0e16762c75adacebd05ec9fcbccf16bEvan Cheng } 8977c2a4a30e0e16762c75adacebd05ec9fcbccf16bEvan Cheng } 89848d7c069c76882475c23de153bda9483cd3c9bb4Chris Lattner getParent()->remove(this); 89948d7c069c76882475c23de153bda9483cd3c9bb4Chris Lattner return this; 90048d7c069c76882475c23de153bda9483cd3c9bb4Chris Lattner} 90148d7c069c76882475c23de153bda9483cd3c9bb4Chris Lattner 90248d7c069c76882475c23de153bda9483cd3c9bb4Chris Lattner 9038e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman/// eraseFromParent - This method unlinks 'this' from the containing basic 9048e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman/// block, and deletes it. 9058e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohmanvoid MachineInstr::eraseFromParent() { 9068e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman assert(getParent() && "Not embedded in a basic block!"); 9077c2a4a30e0e16762c75adacebd05ec9fcbccf16bEvan Cheng // If it's a bundle then remove the MIs inside the bundle as well. 908ddfd1377d2e4154d44dc3ad217735adc15af2e3fEvan Cheng if (isBundle()) { 9097c2a4a30e0e16762c75adacebd05ec9fcbccf16bEvan Cheng MachineBasicBlock *MBB = getParent(); 910ddfd1377d2e4154d44dc3ad217735adc15af2e3fEvan Cheng MachineBasicBlock::instr_iterator MII = *this; ++MII; 911ddfd1377d2e4154d44dc3ad217735adc15af2e3fEvan Cheng MachineBasicBlock::instr_iterator E = MBB->instr_end(); 912ddfd1377d2e4154d44dc3ad217735adc15af2e3fEvan Cheng while (MII != E && MII->isInsideBundle()) { 9137c2a4a30e0e16762c75adacebd05ec9fcbccf16bEvan Cheng MachineInstr *MI = &*MII; 9147c2a4a30e0e16762c75adacebd05ec9fcbccf16bEvan Cheng ++MII; 9157c2a4a30e0e16762c75adacebd05ec9fcbccf16bEvan Cheng MBB->erase(MI); 9167c2a4a30e0e16762c75adacebd05ec9fcbccf16bEvan Cheng } 9177c2a4a30e0e16762c75adacebd05ec9fcbccf16bEvan Cheng } 918d88d27868bf7c2c5914c1b9ccace0ee6d7ee958aAndrew Trick // Erase the individual instruction, which may itself be inside a bundle. 919d88d27868bf7c2c5914c1b9ccace0ee6d7ee958aAndrew Trick getParent()->erase_instr(this); 9208e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman} 9218e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman 9228e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman 92319e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng/// getNumExplicitOperands - Returns the number of non-implicit operands. 92419e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng/// 92519e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Chengunsigned MachineInstr::getNumExplicitOperands() const { 926e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng unsigned NumOperands = MCID->getNumOperands(); 927e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng if (!MCID->isVariadic()) 92819e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng return NumOperands; 92919e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng 9309407cd4ede3e2c090b958778d0fdbdac8b2dbec4Dan Gohman for (unsigned i = NumOperands, e = getNumOperands(); i != e; ++i) { 9319407cd4ede3e2c090b958778d0fdbdac8b2dbec4Dan Gohman const MachineOperand &MO = getOperand(i); 932d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (!MO.isReg() || !MO.isImplicit()) 93319e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng NumOperands++; 93419e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng } 93519e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng return NumOperands; 93619e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng} 93719e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng 93899a7a13f4aa5bf8f272c95f7b09ba997d2b30a35Andrew Trick/// isBundled - Return true if this instruction part of a bundle. This is true 93999a7a13f4aa5bf8f272c95f7b09ba997d2b30a35Andrew Trick/// if either itself or its following instruction is marked "InsideBundle". 94099a7a13f4aa5bf8f272c95f7b09ba997d2b30a35Andrew Trickbool MachineInstr::isBundled() const { 94199a7a13f4aa5bf8f272c95f7b09ba997d2b30a35Andrew Trick if (isInsideBundle()) 94299a7a13f4aa5bf8f272c95f7b09ba997d2b30a35Andrew Trick return true; 94399a7a13f4aa5bf8f272c95f7b09ba997d2b30a35Andrew Trick MachineBasicBlock::const_instr_iterator nextMI = this; 94499a7a13f4aa5bf8f272c95f7b09ba997d2b30a35Andrew Trick ++nextMI; 94599a7a13f4aa5bf8f272c95f7b09ba997d2b30a35Andrew Trick return nextMI != Parent->instr_end() && nextMI->isInsideBundle(); 94699a7a13f4aa5bf8f272c95f7b09ba997d2b30a35Andrew Trick} 94799a7a13f4aa5bf8f272c95f7b09ba997d2b30a35Andrew Trick 948c36b7069b42bece963b7e6adf020353ce990ef76Evan Chengbool MachineInstr::isStackAligningInlineAsm() const { 949c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng if (isInlineAsm()) { 950c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng unsigned ExtraInfo = getOperand(InlineAsm::MIOp_ExtraInfo).getImm(); 951c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng if (ExtraInfo & InlineAsm::Extra_IsAlignStack) 952c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng return true; 953c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng } 954c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng return false; 955c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng} 9568ace2cd034be10c09be51daf08c3dda327f54262Chris Lattner 9579dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesenint MachineInstr::findInlineAsmFlagIdx(unsigned OpIdx, 9589dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen unsigned *GroupNo) const { 9599dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen assert(isInlineAsm() && "Expected an inline asm instruction"); 9609dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen assert(OpIdx < getNumOperands() && "OpIdx out of range"); 9619dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen 9629dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen // Ignore queries about the initial operands. 9639dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen if (OpIdx < InlineAsm::MIOp_FirstOperand) 9649dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen return -1; 9659dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen 9669dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen unsigned Group = 0; 9679dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen unsigned NumOps; 9689dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen for (unsigned i = InlineAsm::MIOp_FirstOperand, e = getNumOperands(); i < e; 9699dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen i += NumOps) { 9709dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen const MachineOperand &FlagMO = getOperand(i); 9719dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen // If we reach the implicit register operands, stop looking. 9729dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen if (!FlagMO.isImm()) 9739dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen return -1; 9749dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen NumOps = 1 + InlineAsm::getNumOperandRegisters(FlagMO.getImm()); 9759dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen if (i + NumOps > OpIdx) { 9769dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen if (GroupNo) 9779dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen *GroupNo = Group; 9789dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen return i; 9799dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen } 9809dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen ++Group; 9819dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen } 9829dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen return -1; 9839dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen} 9849dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen 985f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund Olesenconst TargetRegisterClass* 986f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund OlesenMachineInstr::getRegClassConstraint(unsigned OpIdx, 987f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund Olesen const TargetInstrInfo *TII, 988f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund Olesen const TargetRegisterInfo *TRI) const { 989397fc4874efe9c17e737d4c5c50bd19dc3bf27f5Jakob Stoklund Olesen assert(getParent() && "Can't have an MBB reference here!"); 990397fc4874efe9c17e737d4c5c50bd19dc3bf27f5Jakob Stoklund Olesen assert(getParent()->getParent() && "Can't have an MF reference here!"); 991397fc4874efe9c17e737d4c5c50bd19dc3bf27f5Jakob Stoklund Olesen const MachineFunction &MF = *getParent()->getParent(); 992397fc4874efe9c17e737d4c5c50bd19dc3bf27f5Jakob Stoklund Olesen 993f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund Olesen // Most opcodes have fixed constraints in their MCInstrDesc. 994f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund Olesen if (!isInlineAsm()) 995397fc4874efe9c17e737d4c5c50bd19dc3bf27f5Jakob Stoklund Olesen return TII->getRegClass(getDesc(), OpIdx, TRI, MF); 996f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund Olesen 997f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund Olesen if (!getOperand(OpIdx).isReg()) 998f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund Olesen return NULL; 999f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund Olesen 1000f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund Olesen // For tied uses on inline asm, get the constraint from the def. 1001f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund Olesen unsigned DefIdx; 1002f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund Olesen if (getOperand(OpIdx).isUse() && isRegTiedToDefOperand(OpIdx, &DefIdx)) 1003f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund Olesen OpIdx = DefIdx; 1004f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund Olesen 1005f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund Olesen // Inline asm stores register class constraints in the flag word. 1006f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund Olesen int FlagIdx = findInlineAsmFlagIdx(OpIdx); 1007f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund Olesen if (FlagIdx < 0) 1008f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund Olesen return NULL; 1009f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund Olesen 1010f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund Olesen unsigned Flag = getOperand(FlagIdx).getImm(); 1011f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund Olesen unsigned RCID; 1012f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund Olesen if (InlineAsm::hasRegClassConstraint(Flag, RCID)) 1013f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund Olesen return TRI->getRegClass(RCID); 1014f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund Olesen 1015f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund Olesen // Assume that all registers in a memory operand are pointers. 1016f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund Olesen if (InlineAsm::getKind(Flag) == InlineAsm::Kind_Mem) 1017397fc4874efe9c17e737d4c5c50bd19dc3bf27f5Jakob Stoklund Olesen return TRI->getPointerRegClass(MF); 1018f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund Olesen 1019f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund Olesen return NULL; 1020f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund Olesen} 1021f5916976e9057177100badee7b7388bd7ba76ac3Jakob Stoklund Olesen 1022ddfd1377d2e4154d44dc3ad217735adc15af2e3fEvan Cheng/// getBundleSize - Return the number of instructions inside the MI bundle. 1023ddfd1377d2e4154d44dc3ad217735adc15af2e3fEvan Chengunsigned MachineInstr::getBundleSize() const { 1024ddfd1377d2e4154d44dc3ad217735adc15af2e3fEvan Cheng assert(isBundle() && "Expecting a bundle"); 1025ddfd1377d2e4154d44dc3ad217735adc15af2e3fEvan Cheng 1026ddfd1377d2e4154d44dc3ad217735adc15af2e3fEvan Cheng MachineBasicBlock::const_instr_iterator I = *this; 1027ddfd1377d2e4154d44dc3ad217735adc15af2e3fEvan Cheng unsigned Size = 0; 1028ddfd1377d2e4154d44dc3ad217735adc15af2e3fEvan Cheng while ((++I)->isInsideBundle()) { 1029ddfd1377d2e4154d44dc3ad217735adc15af2e3fEvan Cheng ++Size; 1030ddfd1377d2e4154d44dc3ad217735adc15af2e3fEvan Cheng } 1031ddfd1377d2e4154d44dc3ad217735adc15af2e3fEvan Cheng assert(Size > 1 && "Malformed bundle"); 1032ddfd1377d2e4154d44dc3ad217735adc15af2e3fEvan Cheng 1033ddfd1377d2e4154d44dc3ad217735adc15af2e3fEvan Cheng return Size; 1034ddfd1377d2e4154d44dc3ad217735adc15af2e3fEvan Cheng} 1035ddfd1377d2e4154d44dc3ad217735adc15af2e3fEvan Cheng 1036faa510726f4b40aa4495e60e4d341c6467e3fb01Evan Cheng/// findRegisterUseOperandIdx() - Returns the MachineOperand that is a use of 1037f9ca50e3dce88b2f9e2f2f0cac2d3ed78afda841Jim Grosbach/// the specific register or -1 if it is not found. It further tightens 103876d7e76c15c258ec4a71fd75a2a32bca3a5e5e27Evan Cheng/// the search criteria to a use that kills the register if isKill is true. 10396130f66eaae89f8878590796977678afa8448926Evan Chengint MachineInstr::findRegisterUseOperandIdx(unsigned Reg, bool isKill, 10406130f66eaae89f8878590796977678afa8448926Evan Cheng const TargetRegisterInfo *TRI) const { 1041576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 1042f277ee4be7edabb759a7f78138b693d72d0c263fEvan Cheng const MachineOperand &MO = getOperand(i); 1043d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (!MO.isReg() || !MO.isUse()) 10446130f66eaae89f8878590796977678afa8448926Evan Cheng continue; 10456130f66eaae89f8878590796977678afa8448926Evan Cheng unsigned MOReg = MO.getReg(); 10466130f66eaae89f8878590796977678afa8448926Evan Cheng if (!MOReg) 10476130f66eaae89f8878590796977678afa8448926Evan Cheng continue; 10486130f66eaae89f8878590796977678afa8448926Evan Cheng if (MOReg == Reg || 10496130f66eaae89f8878590796977678afa8448926Evan Cheng (TRI && 10506130f66eaae89f8878590796977678afa8448926Evan Cheng TargetRegisterInfo::isPhysicalRegister(MOReg) && 10516130f66eaae89f8878590796977678afa8448926Evan Cheng TargetRegisterInfo::isPhysicalRegister(Reg) && 10526130f66eaae89f8878590796977678afa8448926Evan Cheng TRI->isSubRegister(MOReg, Reg))) 105376d7e76c15c258ec4a71fd75a2a32bca3a5e5e27Evan Cheng if (!isKill || MO.isKill()) 105432eb1f1ca4220d2f24916e587ad7e8574d7d82a1Evan Cheng return i; 1055b371f457b0ea4a652a9f526ba4375c80ae542252Evan Cheng } 105632eb1f1ca4220d2f24916e587ad7e8574d7d82a1Evan Cheng return -1; 1057b371f457b0ea4a652a9f526ba4375c80ae542252Evan Cheng} 10587ebc4d63db05ac214d36bc01b4d60adadaf923e5Jakob Stoklund Olesen 105918b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesen/// readsWritesVirtualRegister - Return a pair of bools (reads, writes) 106018b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesen/// indicating if this instruction reads or writes Reg. This also considers 106118b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesen/// partial defines. 106218b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesenstd::pair<bool,bool> 106318b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund OlesenMachineInstr::readsWritesVirtualRegister(unsigned Reg, 106418b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesen SmallVectorImpl<unsigned> *Ops) const { 106518b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesen bool PartDef = false; // Partial redefine. 106618b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesen bool FullDef = false; // Full define. 106718b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesen bool Use = false; 10687ebc4d63db05ac214d36bc01b4d60adadaf923e5Jakob Stoklund Olesen 10697ebc4d63db05ac214d36bc01b4d60adadaf923e5Jakob Stoklund Olesen for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 10707ebc4d63db05ac214d36bc01b4d60adadaf923e5Jakob Stoklund Olesen const MachineOperand &MO = getOperand(i); 10717ebc4d63db05ac214d36bc01b4d60adadaf923e5Jakob Stoklund Olesen if (!MO.isReg() || MO.getReg() != Reg) 10727ebc4d63db05ac214d36bc01b4d60adadaf923e5Jakob Stoklund Olesen continue; 107318b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesen if (Ops) 107418b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesen Ops->push_back(i); 10757ebc4d63db05ac214d36bc01b4d60adadaf923e5Jakob Stoklund Olesen if (MO.isUse()) 107618b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesen Use |= !MO.isUndef(); 1077201f2463a72f88121a3a31e7386029e99d2d75daJakob Stoklund Olesen else if (MO.getSubReg() && !MO.isUndef()) 1078201f2463a72f88121a3a31e7386029e99d2d75daJakob Stoklund Olesen // A partial <def,undef> doesn't count as reading the register. 10797ebc4d63db05ac214d36bc01b4d60adadaf923e5Jakob Stoklund Olesen PartDef = true; 10807ebc4d63db05ac214d36bc01b4d60adadaf923e5Jakob Stoklund Olesen else 10817ebc4d63db05ac214d36bc01b4d60adadaf923e5Jakob Stoklund Olesen FullDef = true; 10827ebc4d63db05ac214d36bc01b4d60adadaf923e5Jakob Stoklund Olesen } 108318b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesen // A partial redefine uses Reg unless there is also a full define. 108418b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesen return std::make_pair(Use || (PartDef && !FullDef), PartDef || FullDef); 10857ebc4d63db05ac214d36bc01b4d60adadaf923e5Jakob Stoklund Olesen} 10867ebc4d63db05ac214d36bc01b4d60adadaf923e5Jakob Stoklund Olesen 10876130f66eaae89f8878590796977678afa8448926Evan Cheng/// findRegisterDefOperandIdx() - Returns the operand index that is a def of 1088703bfe69092e8da79fbef2fc5ca07b805ad9f753Dan Gohman/// the specified register or -1 if it is not found. If isDead is true, defs 1089703bfe69092e8da79fbef2fc5ca07b805ad9f753Dan Gohman/// that are not dead are skipped. If TargetRegisterInfo is non-null, then it 1090703bfe69092e8da79fbef2fc5ca07b805ad9f753Dan Gohman/// also checks if there is a def of a super-register. 10911015ba7018c87f48cc7bb45a564eb4a27241e76aEvan Chengint 10921015ba7018c87f48cc7bb45a564eb4a27241e76aEvan ChengMachineInstr::findRegisterDefOperandIdx(unsigned Reg, bool isDead, bool Overlap, 10931015ba7018c87f48cc7bb45a564eb4a27241e76aEvan Cheng const TargetRegisterInfo *TRI) const { 10941015ba7018c87f48cc7bb45a564eb4a27241e76aEvan Cheng bool isPhys = TargetRegisterInfo::isPhysicalRegister(Reg); 1095b371f457b0ea4a652a9f526ba4375c80ae542252Evan Cheng for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 10966130f66eaae89f8878590796977678afa8448926Evan Cheng const MachineOperand &MO = getOperand(i); 10971cf8b0f2a5435d8444b6cc7d4a27eef424398273Jakob Stoklund Olesen // Accept regmask operands when Overlap is set. 10981cf8b0f2a5435d8444b6cc7d4a27eef424398273Jakob Stoklund Olesen // Ignore them when looking for a specific def operand (Overlap == false). 10991cf8b0f2a5435d8444b6cc7d4a27eef424398273Jakob Stoklund Olesen if (isPhys && Overlap && MO.isRegMask() && MO.clobbersPhysReg(Reg)) 11001cf8b0f2a5435d8444b6cc7d4a27eef424398273Jakob Stoklund Olesen return i; 1101d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (!MO.isReg() || !MO.isDef()) 11026130f66eaae89f8878590796977678afa8448926Evan Cheng continue; 11036130f66eaae89f8878590796977678afa8448926Evan Cheng unsigned MOReg = MO.getReg(); 11041015ba7018c87f48cc7bb45a564eb4a27241e76aEvan Cheng bool Found = (MOReg == Reg); 11051015ba7018c87f48cc7bb45a564eb4a27241e76aEvan Cheng if (!Found && TRI && isPhys && 11061015ba7018c87f48cc7bb45a564eb4a27241e76aEvan Cheng TargetRegisterInfo::isPhysicalRegister(MOReg)) { 11071015ba7018c87f48cc7bb45a564eb4a27241e76aEvan Cheng if (Overlap) 11081015ba7018c87f48cc7bb45a564eb4a27241e76aEvan Cheng Found = TRI->regsOverlap(MOReg, Reg); 11091015ba7018c87f48cc7bb45a564eb4a27241e76aEvan Cheng else 11101015ba7018c87f48cc7bb45a564eb4a27241e76aEvan Cheng Found = TRI->isSubRegister(MOReg, Reg); 11111015ba7018c87f48cc7bb45a564eb4a27241e76aEvan Cheng } 11121015ba7018c87f48cc7bb45a564eb4a27241e76aEvan Cheng if (Found && (!isDead || MO.isDead())) 11131015ba7018c87f48cc7bb45a564eb4a27241e76aEvan Cheng return i; 1114576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng } 11156130f66eaae89f8878590796977678afa8448926Evan Cheng return -1; 1116576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng} 111719e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng 1118f277ee4be7edabb759a7f78138b693d72d0c263fEvan Cheng/// findFirstPredOperandIdx() - Find the index of the first operand in the 1119f277ee4be7edabb759a7f78138b693d72d0c263fEvan Cheng/// operand list that is used to represent the predicate. It returns -1 if 1120f277ee4be7edabb759a7f78138b693d72d0c263fEvan Cheng/// none is found. 1121f277ee4be7edabb759a7f78138b693d72d0c263fEvan Chengint MachineInstr::findFirstPredOperandIdx() const { 1122f8e1e3e729473b8b2b7ee6134b6417976af84d05Jim Grosbach // Don't call MCID.findFirstPredOperandIdx() because this variant 1123f8e1e3e729473b8b2b7ee6134b6417976af84d05Jim Grosbach // is sometimes called on an instruction that's not yet complete, and 1124f8e1e3e729473b8b2b7ee6134b6417976af84d05Jim Grosbach // so the number of operands is less than the MCID indicates. In 1125f8e1e3e729473b8b2b7ee6134b6417976af84d05Jim Grosbach // particular, the PTX target does this. 1126e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng const MCInstrDesc &MCID = getDesc(); 1127e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng if (MCID.isPredicable()) { 112819e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng for (unsigned i = 0, e = getNumOperands(); i != e; ++i) 1129e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng if (MCID.OpInfo[i].isPredicate()) 1130f277ee4be7edabb759a7f78138b693d72d0c263fEvan Cheng return i; 113119e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng } 113219e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng 1133f277ee4be7edabb759a7f78138b693d72d0c263fEvan Cheng return -1; 113419e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng} 1135ee61d67c2f1105e23b2ea5110389f3b7b713b504Jim Grosbach 1136d9df5017040489303acb57bdd8697ef0f8bafc08Bob Wilson/// isRegTiedToUseOperand - Given the index of a register def operand, 1137d9df5017040489303acb57bdd8697ef0f8bafc08Bob Wilson/// check if the register def is tied to a source operand, due to either 1138d9df5017040489303acb57bdd8697ef0f8bafc08Bob Wilson/// two-address elimination or inline assembly constraints. Returns the 1139d9df5017040489303acb57bdd8697ef0f8bafc08Bob Wilson/// first tied use operand index by reference is UseOpIdx is not null. 1140ce9be2cf5dc84865f6b819bd3f9be16944426268Jakob Stoklund Olesenbool MachineInstr:: 1141ce9be2cf5dc84865f6b819bd3f9be16944426268Jakob Stoklund OlesenisRegTiedToUseOperand(unsigned DefOpIdx, unsigned *UseOpIdx) const { 1142518bb53485df640d7b7e3f6b0544099020c42aa7Chris Lattner if (isInlineAsm()) { 1143c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng assert(DefOpIdx > InlineAsm::MIOp_FirstOperand); 1144d9df5017040489303acb57bdd8697ef0f8bafc08Bob Wilson const MachineOperand &MO = getOperand(DefOpIdx); 1145c30aa7b3de0ce8c37e9630e8e7a73cb83c808c62Chris Lattner if (!MO.isReg() || !MO.isDef() || MO.getReg() == 0) 1146fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng return false; 1147ef5d070bbe55d7165fc84778ca7757c3cfeea491Evan Cheng // Determine the actual operand index that corresponds to this index. 1148fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng unsigned DefNo = 0; 11499dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen int FlagIdx = findInlineAsmFlagIdx(DefOpIdx, &DefNo); 11509dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen if (FlagIdx < 0) 11519dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen return false; 11529dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen 11539dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen // Which part of the group is DefOpIdx? 11549dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen unsigned DefPart = DefOpIdx - (FlagIdx + 1); 11559dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen 1156c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng for (unsigned i = InlineAsm::MIOp_FirstOperand, e = getNumOperands(); 1157c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng i != e; ++i) { 1158fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng const MachineOperand &FMO = getOperand(i); 1159fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng if (!FMO.isImm()) 1160fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng continue; 1161fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng if (i+1 >= e || !getOperand(i+1).isReg() || !getOperand(i+1).isUse()) 1162fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng continue; 1163fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng unsigned Idx; 1164ef5d070bbe55d7165fc84778ca7757c3cfeea491Evan Cheng if (InlineAsm::isUseOperandTiedToDef(FMO.getImm(), Idx) && 1165d9df5017040489303acb57bdd8697ef0f8bafc08Bob Wilson Idx == DefNo) { 1166d9df5017040489303acb57bdd8697ef0f8bafc08Bob Wilson if (UseOpIdx) 1167ef5d070bbe55d7165fc84778ca7757c3cfeea491Evan Cheng *UseOpIdx = (unsigned)i + 1 + DefPart; 1168fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng return true; 1169d9df5017040489303acb57bdd8697ef0f8bafc08Bob Wilson } 1170fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng } 1171ef5d070bbe55d7165fc84778ca7757c3cfeea491Evan Cheng return false; 1172fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng } 1173fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng 1174d9df5017040489303acb57bdd8697ef0f8bafc08Bob Wilson assert(getOperand(DefOpIdx).isDef() && "DefOpIdx is not a def!"); 1175e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng const MCInstrDesc &MCID = getDesc(); 1176e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng for (unsigned i = 0, e = MCID.getNumOperands(); i != e; ++i) { 1177ef0732d25a9882c947984ae3f2afbef5463ba00fEvan Cheng const MachineOperand &MO = getOperand(i); 11782ce7f2068f13566f5a70ee779e3bb83a6cb8d942Dan Gohman if (MO.isReg() && MO.isUse() && 1179e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng MCID.getOperandConstraint(i, MCOI::TIED_TO) == (int)DefOpIdx) { 1180d9df5017040489303acb57bdd8697ef0f8bafc08Bob Wilson if (UseOpIdx) 1181d9df5017040489303acb57bdd8697ef0f8bafc08Bob Wilson *UseOpIdx = (unsigned)i; 1182ef0732d25a9882c947984ae3f2afbef5463ba00fEvan Cheng return true; 1183d9df5017040489303acb57bdd8697ef0f8bafc08Bob Wilson } 118432dfbeada7292167bb488f36a71a5a6a519ddaffEvan Cheng } 118532dfbeada7292167bb488f36a71a5a6a519ddaffEvan Cheng return false; 118632dfbeada7292167bb488f36a71a5a6a519ddaffEvan Cheng} 118732dfbeada7292167bb488f36a71a5a6a519ddaffEvan Cheng 1188a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng/// isRegTiedToDefOperand - Return true if the operand of the specified index 1189a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng/// is a register use and it is tied to an def operand. It also returns the def 1190a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng/// operand index by reference. 1191ce9be2cf5dc84865f6b819bd3f9be16944426268Jakob Stoklund Olesenbool MachineInstr:: 1192ce9be2cf5dc84865f6b819bd3f9be16944426268Jakob Stoklund OlesenisRegTiedToDefOperand(unsigned UseOpIdx, unsigned *DefOpIdx) const { 1193518bb53485df640d7b7e3f6b0544099020c42aa7Chris Lattner if (isInlineAsm()) { 1194fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng const MachineOperand &MO = getOperand(UseOpIdx); 11950c8382ce9a96e36325b17d242fd1af16564d8a85Chris Lattner if (!MO.isReg() || !MO.isUse() || MO.getReg() == 0) 1196fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng return false; 119757e599a46b7b1321f9af02d1cecb4fa6b34f8a52Jakob Stoklund Olesen 119857e599a46b7b1321f9af02d1cecb4fa6b34f8a52Jakob Stoklund Olesen // Find the flag operand corresponding to UseOpIdx 11999dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen int FlagIdx = findInlineAsmFlagIdx(UseOpIdx); 12009dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen if (FlagIdx < 0) 1201ef5d070bbe55d7165fc84778ca7757c3cfeea491Evan Cheng return false; 12029dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen 120357e599a46b7b1321f9af02d1cecb4fa6b34f8a52Jakob Stoklund Olesen const MachineOperand &UFMO = getOperand(FlagIdx); 1204fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng unsigned DefNo; 1205fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng if (InlineAsm::isUseOperandTiedToDef(UFMO.getImm(), DefNo)) { 1206fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng if (!DefOpIdx) 1207fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng return true; 1208fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng 1209c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng unsigned DefIdx = InlineAsm::MIOp_FirstOperand; 1210f1e309eb4862459a76445942ba4dafc433b6f317Dale Johannesen // Remember to adjust the index. First operand is asm string, second is 1211c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng // the HasSideEffects and AlignStack bits, then there is a flag for each. 1212fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng while (DefNo) { 1213fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng const MachineOperand &FMO = getOperand(DefIdx); 1214fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng assert(FMO.isImm()); 1215fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng // Skip over this def. 1216fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng DefIdx += InlineAsm::getNumOperandRegisters(FMO.getImm()) + 1; 1217fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng --DefNo; 1218fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng } 1219ef5d070bbe55d7165fc84778ca7757c3cfeea491Evan Cheng *DefOpIdx = DefIdx + UseOpIdx - FlagIdx; 1220fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng return true; 1221fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng } 1222fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng return false; 1223fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng } 1224fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng 1225e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng const MCInstrDesc &MCID = getDesc(); 1226e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng if (UseOpIdx >= MCID.getNumOperands()) 1227a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng return false; 1228a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng const MachineOperand &MO = getOperand(UseOpIdx); 1229a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng if (!MO.isReg() || !MO.isUse()) 1230a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng return false; 1231e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng int DefIdx = MCID.getOperandConstraint(UseOpIdx, MCOI::TIED_TO); 1232a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng if (DefIdx == -1) 1233a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng return false; 1234a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng if (DefOpIdx) 1235a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng *DefOpIdx = (unsigned)DefIdx; 1236a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng return true; 1237a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng} 1238a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng 1239e6cd757e6800b9b94a6459ec148c0624c4f2e3c1Dan Gohman/// clearKillInfo - Clears kill flags on all operands. 1240e6cd757e6800b9b94a6459ec148c0624c4f2e3c1Dan Gohman/// 1241e6cd757e6800b9b94a6459ec148c0624c4f2e3c1Dan Gohmanvoid MachineInstr::clearKillInfo() { 1242e6cd757e6800b9b94a6459ec148c0624c4f2e3c1Dan Gohman for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 1243e6cd757e6800b9b94a6459ec148c0624c4f2e3c1Dan Gohman MachineOperand &MO = getOperand(i); 1244e6cd757e6800b9b94a6459ec148c0624c4f2e3c1Dan Gohman if (MO.isReg() && MO.isUse()) 1245e6cd757e6800b9b94a6459ec148c0624c4f2e3c1Dan Gohman MO.setIsKill(false); 1246e6cd757e6800b9b94a6459ec148c0624c4f2e3c1Dan Gohman } 1247e6cd757e6800b9b94a6459ec148c0624c4f2e3c1Dan Gohman} 1248e6cd757e6800b9b94a6459ec148c0624c4f2e3c1Dan Gohman 1249576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng/// copyKillDeadInfo - Copies kill / dead operand properties from MI. 1250576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng/// 1251576d123e130a8291669dd2384a3735cc4933fd00Evan Chengvoid MachineInstr::copyKillDeadInfo(const MachineInstr *MI) { 1252576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng for (unsigned i = 0, e = MI->getNumOperands(); i != e; ++i) { 1253576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng const MachineOperand &MO = MI->getOperand(i); 1254d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (!MO.isReg() || (!MO.isKill() && !MO.isDead())) 1255576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng continue; 1256576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng for (unsigned j = 0, ee = getNumOperands(); j != ee; ++j) { 1257576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng MachineOperand &MOp = getOperand(j); 1258576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng if (!MOp.isIdenticalTo(MO)) 1259576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng continue; 1260576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng if (MO.isKill()) 1261576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng MOp.setIsKill(); 1262576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng else 1263576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng MOp.setIsDead(); 1264576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng break; 1265576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng } 1266576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng } 1267576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng} 1268576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng 126919e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng/// copyPredicates - Copies predicate operand(s) from MI. 127019e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Chengvoid MachineInstr::copyPredicates(const MachineInstr *MI) { 1271ddfd1377d2e4154d44dc3ad217735adc15af2e3fEvan Cheng assert(!isBundle() && "MachineInstr::copyPredicates() can't handle bundles"); 12725a96b3dad2f634c9081c8b2b6c2575441dc5a2bdEvan Cheng 1273e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng const MCInstrDesc &MCID = MI->getDesc(); 1274e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng if (!MCID.isPredicable()) 1275b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng return; 1276b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng for (unsigned i = 0, e = MI->getNumOperands(); i != e; ++i) { 1277e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng if (MCID.OpInfo[i].isPredicate()) { 1278b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng // Predicated operands must be last operands. 1279b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng addOperand(MI->getOperand(i)); 128019e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng } 128119e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng } 128219e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng} 128319e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng 12849edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesenvoid MachineInstr::substituteRegister(unsigned FromReg, 12859edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen unsigned ToReg, 12869edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen unsigned SubIdx, 12879edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen const TargetRegisterInfo &RegInfo) { 12889edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen if (TargetRegisterInfo::isPhysicalRegister(ToReg)) { 12899edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen if (SubIdx) 12909edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen ToReg = RegInfo.getSubReg(ToReg, SubIdx); 12919edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 12929edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen MachineOperand &MO = getOperand(i); 12939edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen if (!MO.isReg() || MO.getReg() != FromReg) 12949edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen continue; 12959edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen MO.substPhysReg(ToReg, RegInfo); 12969edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen } 12979edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen } else { 12989edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 12999edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen MachineOperand &MO = getOperand(i); 13009edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen if (!MO.isReg() || MO.getReg() != FromReg) 13019edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen continue; 13029edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen MO.substVirtReg(ToReg, SubIdx, RegInfo); 13039edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen } 13049edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen } 13059edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen} 13069edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen 13079f1c8317a4676945b4961ddb9827ef2412551620Evan Cheng/// isSafeToMove - Return true if it is safe to move this instruction. If 13089f1c8317a4676945b4961ddb9827ef2412551620Evan Cheng/// SawStore is set to true, it means that there is a store (or call) between 13099f1c8317a4676945b4961ddb9827ef2412551620Evan Cheng/// the instruction's location and its intended destination. 1310b3b930a011554fc7566dd4311af3862b01e5fd8fDan Gohmanbool MachineInstr::isSafeToMove(const TargetInstrInfo *TII, 1311ac1abde05b7e6956c01deb6557539bee8fea30f4Evan Cheng AliasAnalysis *AA, 1312ac1abde05b7e6956c01deb6557539bee8fea30f4Evan Cheng bool &SawStore) const { 1313b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng // Ignore stuff that we obviously can't move. 13145a96b3dad2f634c9081c8b2b6c2575441dc5a2bdEvan Cheng if (mayStore() || isCall()) { 1315b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng SawStore = true; 1316b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng return false; 1317b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng } 131830a343aeedf777f9b8b6be9823da750afbf765b1Evan Cheng 131930a343aeedf777f9b8b6be9823da750afbf765b1Evan Cheng if (isLabel() || isDebugValue() || 13205a96b3dad2f634c9081c8b2b6c2575441dc5a2bdEvan Cheng isTerminator() || hasUnmodeledSideEffects()) 1321b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng return false; 1322b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng 1323b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng // See if this instruction does a load. If so, we have to guarantee that the 1324b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng // loaded value doesn't change between the load and the its intended 1325b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng // destination. The check for isInvariantLoad gives the targe the chance to 1326b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng // classify the load as always returning a constant, e.g. a constant pool 1327b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng // load. 13285a96b3dad2f634c9081c8b2b6c2575441dc5a2bdEvan Cheng if (mayLoad() && !isInvariantLoad(AA)) 1329b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng // Otherwise, this is a real load. If there is a store between the load and 13307cc2c406d0c82bcf329048ced643ec77fcae60e6Evan Cheng // end of block, or if the load is volatile, we can't move it. 1331d790a5ceee7138d8a5352432ccf862a42e3f5819Dan Gohman return !SawStore && !hasVolatileMemoryRef(); 13323e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman 1333b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng return true; 1334b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng} 1335b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng 1336df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng/// isSafeToReMat - Return true if it's safe to rematerialize the specified 1337df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng/// instruction which defined the specified register instead of copying it. 1338b3b930a011554fc7566dd4311af3862b01e5fd8fDan Gohmanbool MachineInstr::isSafeToReMat(const TargetInstrInfo *TII, 1339ac1abde05b7e6956c01deb6557539bee8fea30f4Evan Cheng AliasAnalysis *AA, 1340ac1abde05b7e6956c01deb6557539bee8fea30f4Evan Cheng unsigned DstReg) const { 1341df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng bool SawStore = false; 1342a70dca156fa76d452f54829b5c5f962ddfd94ef2Dan Gohman if (!TII->isTriviallyReMaterializable(this, AA) || 1343ac1abde05b7e6956c01deb6557539bee8fea30f4Evan Cheng !isSafeToMove(TII, AA, SawStore)) 1344df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng return false; 1345df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 1346cbad42cfd1cc93a41ff26ea2e8895bfbc09f54f2Dan Gohman const MachineOperand &MO = getOperand(i); 1347d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (!MO.isReg()) 1348df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng continue; 1349df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng // FIXME: For now, do not remat any instruction with register operands. 1350df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng // Later on, we can loosen the restriction is the register operands have 1351df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng // not been modified between the def and use. Note, this is different from 13528763c1c54413c9cd0b56e2860edb5856151a69fcEvan Cheng // MachineSink because the code is no longer in two-address form (at least 1353df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng // partially). 1354df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng if (MO.isUse()) 1355df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng return false; 1356df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng else if (!MO.isDead() && MO.getReg() != DstReg) 1357df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng return false; 1358df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng } 1359df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng return true; 1360df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng} 1361df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng 13623e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman/// hasVolatileMemoryRef - Return true if this instruction may have a 13633e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman/// volatile memory reference, or if the information describing the 13643e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman/// memory reference is not available. Return false if it is known to 13653e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman/// have no volatile memory references. 13663e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohmanbool MachineInstr::hasVolatileMemoryRef() const { 13673e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman // An instruction known never to access memory won't have a volatile access. 13685a96b3dad2f634c9081c8b2b6c2575441dc5a2bdEvan Cheng if (!mayStore() && 13695a96b3dad2f634c9081c8b2b6c2575441dc5a2bdEvan Cheng !mayLoad() && 13705a96b3dad2f634c9081c8b2b6c2575441dc5a2bdEvan Cheng !isCall() && 1371c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng !hasUnmodeledSideEffects()) 13723e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman return false; 13733e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman 13743e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman // Otherwise, if the instruction has no memory reference information, 13753e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman // conservatively assume it wasn't preserved. 13763e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman if (memoperands_empty()) 13773e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman return true; 1378ee61d67c2f1105e23b2ea5110389f3b7b713b504Jim Grosbach 13793e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman // Check the memory reference information for volatile references. 1380c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman for (mmo_iterator I = memoperands_begin(), E = memoperands_end(); I != E; ++I) 1381c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman if ((*I)->isVolatile()) 13823e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman return true; 13833e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman 13843e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman return false; 13853e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman} 13863e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman 1387e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman/// isInvariantLoad - Return true if this instruction is loading from a 1388e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman/// location whose value is invariant across the function. For example, 1389f451cb870efcf9e0302d25ed05f4cac6bb494e42Dan Gohman/// loading a value from the constant pool or from the argument area 1390e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman/// of a function if it does not change. This should only return true of 1391e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman/// *all* loads the instruction does are invariant (if it does multiple loads). 1392e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohmanbool MachineInstr::isInvariantLoad(AliasAnalysis *AA) const { 1393e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman // If the instruction doesn't load at all, it isn't an invariant load. 13945a96b3dad2f634c9081c8b2b6c2575441dc5a2bdEvan Cheng if (!mayLoad()) 1395e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman return false; 1396e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman 1397e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman // If the instruction has lost its memoperands, conservatively assume that 1398e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman // it may not be an invariant load. 1399e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman if (memoperands_empty()) 1400e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman return false; 1401e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman 1402e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman const MachineFrameInfo *MFI = getParent()->getParent()->getFrameInfo(); 1403e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman 1404e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman for (mmo_iterator I = memoperands_begin(), 1405e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman E = memoperands_end(); I != E; ++I) { 1406e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman if ((*I)->isVolatile()) return false; 1407e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman if ((*I)->isStore()) return false; 1408d752e0f7e64585839cb3a458ef52456eaebbea3cPete Cooper if ((*I)->isInvariant()) return true; 1409e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman 1410e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman if (const Value *V = (*I)->getValue()) { 1411e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman // A load from a constant PseudoSourceValue is invariant. 1412e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman if (const PseudoSourceValue *PSV = dyn_cast<PseudoSourceValue>(V)) 1413e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman if (PSV->isConstant(MFI)) 1414e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman continue; 1415e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman // If we have an AliasAnalysis, ask it whether the memory is constant. 1416f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman if (AA && AA->pointsToConstantMemory( 1417f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman AliasAnalysis::Location(V, (*I)->getSize(), 1418f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman (*I)->getTBAAInfo()))) 1419e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman continue; 1420e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman } 1421e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman 1422e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman // Otherwise assume conservatively. 1423e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman return false; 1424e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman } 1425e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman 1426e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman // Everything checks out. 1427e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman return true; 1428e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman} 1429e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman 1430229694f0ee630ceabe96a8bd48952f6740f928b2Evan Cheng/// isConstantValuePHI - If the specified instruction is a PHI that always 1431229694f0ee630ceabe96a8bd48952f6740f928b2Evan Cheng/// merges together the same virtual register, return the register, otherwise 1432229694f0ee630ceabe96a8bd48952f6740f928b2Evan Cheng/// return 0. 1433229694f0ee630ceabe96a8bd48952f6740f928b2Evan Chengunsigned MachineInstr::isConstantValuePHI() const { 1434518bb53485df640d7b7e3f6b0544099020c42aa7Chris Lattner if (!isPHI()) 1435229694f0ee630ceabe96a8bd48952f6740f928b2Evan Cheng return 0; 1436d8f079c25e8bcaf4d10bfa9c3f6a38cd5ac84329Evan Cheng assert(getNumOperands() >= 3 && 1437d8f079c25e8bcaf4d10bfa9c3f6a38cd5ac84329Evan Cheng "It's illegal to have a PHI without source operands"); 1438229694f0ee630ceabe96a8bd48952f6740f928b2Evan Cheng 1439229694f0ee630ceabe96a8bd48952f6740f928b2Evan Cheng unsigned Reg = getOperand(1).getReg(); 1440229694f0ee630ceabe96a8bd48952f6740f928b2Evan Cheng for (unsigned i = 3, e = getNumOperands(); i < e; i += 2) 1441229694f0ee630ceabe96a8bd48952f6740f928b2Evan Cheng if (getOperand(i).getReg() != Reg) 1442229694f0ee630ceabe96a8bd48952f6740f928b2Evan Cheng return 0; 1443229694f0ee630ceabe96a8bd48952f6740f928b2Evan Cheng return Reg; 1444229694f0ee630ceabe96a8bd48952f6740f928b2Evan Cheng} 1445229694f0ee630ceabe96a8bd48952f6740f928b2Evan Cheng 1446c36b7069b42bece963b7e6adf020353ce990ef76Evan Chengbool MachineInstr::hasUnmodeledSideEffects() const { 14475a96b3dad2f634c9081c8b2b6c2575441dc5a2bdEvan Cheng if (hasProperty(MCID::UnmodeledSideEffects)) 1448c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng return true; 1449c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng if (isInlineAsm()) { 1450c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng unsigned ExtraInfo = getOperand(InlineAsm::MIOp_ExtraInfo).getImm(); 1451c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng if (ExtraInfo & InlineAsm::Extra_HasSideEffects) 1452c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng return true; 1453c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng } 1454c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng 1455c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng return false; 1456c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng} 1457c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng 1458a57fabe815ccf016eead526eb3ef475f116ab155Evan Cheng/// allDefsAreDead - Return true if all the defs of this instruction are dead. 1459a57fabe815ccf016eead526eb3ef475f116ab155Evan Cheng/// 1460a57fabe815ccf016eead526eb3ef475f116ab155Evan Chengbool MachineInstr::allDefsAreDead() const { 1461a57fabe815ccf016eead526eb3ef475f116ab155Evan Cheng for (unsigned i = 0, e = getNumOperands(); i < e; ++i) { 1462a57fabe815ccf016eead526eb3ef475f116ab155Evan Cheng const MachineOperand &MO = getOperand(i); 1463a57fabe815ccf016eead526eb3ef475f116ab155Evan Cheng if (!MO.isReg() || MO.isUse()) 1464a57fabe815ccf016eead526eb3ef475f116ab155Evan Cheng continue; 1465a57fabe815ccf016eead526eb3ef475f116ab155Evan Cheng if (!MO.isDead()) 1466a57fabe815ccf016eead526eb3ef475f116ab155Evan Cheng return false; 1467a57fabe815ccf016eead526eb3ef475f116ab155Evan Cheng } 1468a57fabe815ccf016eead526eb3ef475f116ab155Evan Cheng return true; 1469a57fabe815ccf016eead526eb3ef475f116ab155Evan Cheng} 1470a57fabe815ccf016eead526eb3ef475f116ab155Evan Cheng 1471c8f46c45a0bdefdb91593cabc87547cc45f9d89dEvan Cheng/// copyImplicitOps - Copy implicit register operands from specified 1472c8f46c45a0bdefdb91593cabc87547cc45f9d89dEvan Cheng/// instruction to this instruction. 1473c8f46c45a0bdefdb91593cabc87547cc45f9d89dEvan Chengvoid MachineInstr::copyImplicitOps(const MachineInstr *MI) { 1474c8f46c45a0bdefdb91593cabc87547cc45f9d89dEvan Cheng for (unsigned i = MI->getDesc().getNumOperands(), e = MI->getNumOperands(); 1475c8f46c45a0bdefdb91593cabc87547cc45f9d89dEvan Cheng i != e; ++i) { 1476c8f46c45a0bdefdb91593cabc87547cc45f9d89dEvan Cheng const MachineOperand &MO = MI->getOperand(i); 1477c8f46c45a0bdefdb91593cabc87547cc45f9d89dEvan Cheng if (MO.isReg() && MO.isImplicit()) 1478c8f46c45a0bdefdb91593cabc87547cc45f9d89dEvan Cheng addOperand(MO); 1479c8f46c45a0bdefdb91593cabc87547cc45f9d89dEvan Cheng } 1480c8f46c45a0bdefdb91593cabc87547cc45f9d89dEvan Cheng} 1481c8f46c45a0bdefdb91593cabc87547cc45f9d89dEvan Cheng 148221326fc2ad47ee7e73a8c0b03a4a0cc0b0a0c4e8Brian Gaekevoid MachineInstr::dump() const { 14833b325334102144ec39910563eabebde434504564David Greene dbgs() << " " << *this; 14845ca6bd14a00ba5310ce1a632d3a0cc8f8af31433Mon P Wang} 14855ca6bd14a00ba5310ce1a632d3a0cc8f8af31433Mon P Wang 1486ee61d67c2f1105e23b2ea5110389f3b7b713b504Jim Grosbachstatic void printDebugLoc(DebugLoc DL, const MachineFunction *MF, 1487da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel raw_ostream &CommentOS) { 1488da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel const LLVMContext &Ctx = MF->getFunction()->getContext(); 1489da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel if (!DL.isUnknown()) { // Print source line info. 1490da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel DIScope Scope(DL.getScope(Ctx)); 1491da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel // Omit the directory, because it's likely to be long and uninteresting. 1492da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel if (Scope.Verify()) 1493da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel CommentOS << Scope.getFilename(); 1494da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel else 1495da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel CommentOS << "<unknown>"; 1496da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel CommentOS << ':' << DL.getLine(); 1497da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel if (DL.getCol() != 0) 1498da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel CommentOS << ':' << DL.getCol(); 1499da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel DebugLoc InlinedAtDL = DebugLoc::getFromDILocation(DL.getInlinedAt(Ctx)); 1500da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel if (!InlinedAtDL.isUnknown()) { 1501da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel CommentOS << " @[ "; 1502da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel printDebugLoc(InlinedAtDL, MF, CommentOS); 1503da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel CommentOS << " ]"; 1504da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel } 1505da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel } 1506da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel} 1507da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel 15085ca6bd14a00ba5310ce1a632d3a0cc8f8af31433Mon P Wangvoid MachineInstr::print(raw_ostream &OS, const TargetMachine *TM) const { 150980f6c5898113806130975fd56d24929b06bf54f8Dan Gohman // We can be a bit tidier if we know the TargetMachine and/or MachineFunction. 151080f6c5898113806130975fd56d24929b06bf54f8Dan Gohman const MachineFunction *MF = 0; 1511a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen const MachineRegisterInfo *MRI = 0; 151280f6c5898113806130975fd56d24929b06bf54f8Dan Gohman if (const MachineBasicBlock *MBB = getParent()) { 151380f6c5898113806130975fd56d24929b06bf54f8Dan Gohman MF = MBB->getParent(); 151480f6c5898113806130975fd56d24929b06bf54f8Dan Gohman if (!TM && MF) 151580f6c5898113806130975fd56d24929b06bf54f8Dan Gohman TM = &MF->getTarget(); 1516a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen if (MF) 1517a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen MRI = &MF->getRegInfo(); 151880f6c5898113806130975fd56d24929b06bf54f8Dan Gohman } 15190ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman 1520a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen // Save a list of virtual registers. 1521a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen SmallVector<unsigned, 8> VirtRegs; 1522a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen 15230ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman // Print explicitly defined operands on the left of an assignment syntax. 152480f6c5898113806130975fd56d24929b06bf54f8Dan Gohman unsigned StartOp = 0, e = getNumOperands(); 15250ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman for (; StartOp < e && getOperand(StartOp).isReg() && 15260ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman getOperand(StartOp).isDef() && 15270ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman !getOperand(StartOp).isImplicit(); 15280ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman ++StartOp) { 15290ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman if (StartOp != 0) OS << ", "; 15300ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman getOperand(StartOp).print(OS, TM); 1531a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen unsigned Reg = getOperand(StartOp).getReg(); 1532c9df025e33ac435adb3b3318d237c36ca7cec659Jakob Stoklund Olesen if (TargetRegisterInfo::isVirtualRegister(Reg)) 1533a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen VirtRegs.push_back(Reg); 15346a592271fb2946a0704b06fd66199987cdd40b3cChris Lattner } 1535b140762a45d21aaed054f15adaff0fc2274d939dTanya Lattner 15360ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman if (StartOp != 0) 15370ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman OS << " = "; 15380ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman 15390ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman // Print the opcode name. 1540c667ba69ac342563c0886e20509e68705d78a0a5Benjamin Kramer if (TM && TM->getInstrInfo()) 1541c667ba69ac342563c0886e20509e68705d78a0a5Benjamin Kramer OS << TM->getInstrInfo()->getName(getOpcode()); 1542c667ba69ac342563c0886e20509e68705d78a0a5Benjamin Kramer else 1543c667ba69ac342563c0886e20509e68705d78a0a5Benjamin Kramer OS << "UNKNOWN"; 1544edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 15450ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman // Print the rest of the operands. 154680f6c5898113806130975fd56d24929b06bf54f8Dan Gohman bool OmittedAnyCallClobbers = false; 154780f6c5898113806130975fd56d24929b06bf54f8Dan Gohman bool FirstOp = true; 15487a2ecd3f99ae4dede7e8c1984c2a08984be69363Jakob Stoklund Olesen unsigned AsmDescOp = ~0u; 15497a2ecd3f99ae4dede7e8c1984c2a08984be69363Jakob Stoklund Olesen unsigned AsmOpCount = 0; 1550c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng 15513627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen if (isInlineAsm() && e >= InlineAsm::MIOp_FirstOperand) { 1552c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng // Print asm string. 1553c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng OS << " "; 1554c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng getOperand(InlineAsm::MIOp_AsmString).print(OS, TM); 1555c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng 1556c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng // Print HasSideEffects, IsAlignStack 1557c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng unsigned ExtraInfo = getOperand(InlineAsm::MIOp_ExtraInfo).getImm(); 1558c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng if (ExtraInfo & InlineAsm::Extra_HasSideEffects) 1559c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng OS << " [sideeffect]"; 1560c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng if (ExtraInfo & InlineAsm::Extra_IsAlignStack) 1561c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng OS << " [alignstack]"; 1562c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng 15637a2ecd3f99ae4dede7e8c1984c2a08984be69363Jakob Stoklund Olesen StartOp = AsmDescOp = InlineAsm::MIOp_FirstOperand; 1564c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng FirstOp = false; 1565c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng } 1566c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng 1567c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng 15686a592271fb2946a0704b06fd66199987cdd40b3cChris Lattner for (unsigned i = StartOp, e = getNumOperands(); i != e; ++i) { 156980f6c5898113806130975fd56d24929b06bf54f8Dan Gohman const MachineOperand &MO = getOperand(i); 157080f6c5898113806130975fd56d24929b06bf54f8Dan Gohman 1571c9df025e33ac435adb3b3318d237c36ca7cec659Jakob Stoklund Olesen if (MO.isReg() && TargetRegisterInfo::isVirtualRegister(MO.getReg())) 1572a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen VirtRegs.push_back(MO.getReg()); 1573a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen 157480f6c5898113806130975fd56d24929b06bf54f8Dan Gohman // Omit call-clobbered registers which aren't used anywhere. This makes 157580f6c5898113806130975fd56d24929b06bf54f8Dan Gohman // call instructions much less noisy on targets where calls clobber lots 157680f6c5898113806130975fd56d24929b06bf54f8Dan Gohman // of registers. Don't rely on MO.isDead() because we may be called before 157780f6c5898113806130975fd56d24929b06bf54f8Dan Gohman // LiveVariables is run, or we may be looking at a non-allocatable reg. 15785a96b3dad2f634c9081c8b2b6c2575441dc5a2bdEvan Cheng if (MF && isCall() && 157980f6c5898113806130975fd56d24929b06bf54f8Dan Gohman MO.isReg() && MO.isImplicit() && MO.isDef()) { 158080f6c5898113806130975fd56d24929b06bf54f8Dan Gohman unsigned Reg = MO.getReg(); 1581c9df025e33ac435adb3b3318d237c36ca7cec659Jakob Stoklund Olesen if (TargetRegisterInfo::isPhysicalRegister(Reg)) { 158280f6c5898113806130975fd56d24929b06bf54f8Dan Gohman const MachineRegisterInfo &MRI = MF->getRegInfo(); 158380f6c5898113806130975fd56d24929b06bf54f8Dan Gohman if (MRI.use_empty(Reg) && !MRI.isLiveOut(Reg)) { 158480f6c5898113806130975fd56d24929b06bf54f8Dan Gohman bool HasAliasLive = false; 1585396618b43a85e12d290a90b181c6af5d7c0c5f11Jakob Stoklund Olesen for (MCRegAliasIterator AI(Reg, TM->getRegisterInfo(), true); 1586396618b43a85e12d290a90b181c6af5d7c0c5f11Jakob Stoklund Olesen AI.isValid(); ++AI) { 1587396618b43a85e12d290a90b181c6af5d7c0c5f11Jakob Stoklund Olesen unsigned AliasReg = *AI; 158880f6c5898113806130975fd56d24929b06bf54f8Dan Gohman if (!MRI.use_empty(AliasReg) || MRI.isLiveOut(AliasReg)) { 158980f6c5898113806130975fd56d24929b06bf54f8Dan Gohman HasAliasLive = true; 159080f6c5898113806130975fd56d24929b06bf54f8Dan Gohman break; 159180f6c5898113806130975fd56d24929b06bf54f8Dan Gohman } 1592396618b43a85e12d290a90b181c6af5d7c0c5f11Jakob Stoklund Olesen } 159380f6c5898113806130975fd56d24929b06bf54f8Dan Gohman if (!HasAliasLive) { 159480f6c5898113806130975fd56d24929b06bf54f8Dan Gohman OmittedAnyCallClobbers = true; 159580f6c5898113806130975fd56d24929b06bf54f8Dan Gohman continue; 159680f6c5898113806130975fd56d24929b06bf54f8Dan Gohman } 159780f6c5898113806130975fd56d24929b06bf54f8Dan Gohman } 159880f6c5898113806130975fd56d24929b06bf54f8Dan Gohman } 159980f6c5898113806130975fd56d24929b06bf54f8Dan Gohman } 160080f6c5898113806130975fd56d24929b06bf54f8Dan Gohman 160180f6c5898113806130975fd56d24929b06bf54f8Dan Gohman if (FirstOp) FirstOp = false; else OS << ","; 16026a592271fb2946a0704b06fd66199987cdd40b3cChris Lattner OS << " "; 1603b1bb4afbc7d801f9875be135c428b6f05511db5dJakob Stoklund Olesen if (i < getDesc().NumOperands) { 1604e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng const MCOperandInfo &MCOI = getDesc().OpInfo[i]; 1605e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng if (MCOI.isPredicate()) 1606b1bb4afbc7d801f9875be135c428b6f05511db5dJakob Stoklund Olesen OS << "pred:"; 1607e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng if (MCOI.isOptionalDef()) 1608b1bb4afbc7d801f9875be135c428b6f05511db5dJakob Stoklund Olesen OS << "opt:"; 1609b1bb4afbc7d801f9875be135c428b6f05511db5dJakob Stoklund Olesen } 161059b3655564bb6717b296ca9e71f13bf7db45b590Evan Cheng if (isDebugValue() && MO.isMetadata()) { 161159b3655564bb6717b296ca9e71f13bf7db45b590Evan Cheng // Pretty print DBG_VALUE instructions. 161259b3655564bb6717b296ca9e71f13bf7db45b590Evan Cheng const MDNode *MD = MO.getMetadata(); 161359b3655564bb6717b296ca9e71f13bf7db45b590Evan Cheng if (const MDString *MDS = dyn_cast<MDString>(MD->getOperand(2))) 161459b3655564bb6717b296ca9e71f13bf7db45b590Evan Cheng OS << "!\"" << MDS->getString() << '\"'; 161559b3655564bb6717b296ca9e71f13bf7db45b590Evan Cheng else 161659b3655564bb6717b296ca9e71f13bf7db45b590Evan Cheng MO.print(OS, TM); 1617b1e11455d1cf4df081a9593660d194c1a53b4334Jakob Stoklund Olesen } else if (TM && (isInsertSubreg() || isRegSequence()) && MO.isImm()) { 1618b1e11455d1cf4df081a9593660d194c1a53b4334Jakob Stoklund Olesen OS << TM->getRegisterInfo()->getSubRegIndexName(MO.getImm()); 16197a2ecd3f99ae4dede7e8c1984c2a08984be69363Jakob Stoklund Olesen } else if (i == AsmDescOp && MO.isImm()) { 16207a2ecd3f99ae4dede7e8c1984c2a08984be69363Jakob Stoklund Olesen // Pretty print the inline asm operand descriptor. 16217a2ecd3f99ae4dede7e8c1984c2a08984be69363Jakob Stoklund Olesen OS << '$' << AsmOpCount++; 16227a2ecd3f99ae4dede7e8c1984c2a08984be69363Jakob Stoklund Olesen unsigned Flag = MO.getImm(); 16237a2ecd3f99ae4dede7e8c1984c2a08984be69363Jakob Stoklund Olesen switch (InlineAsm::getKind(Flag)) { 1624459b74b9644c4741d93fe73adc2b06ca6bdb366dJakob Stoklund Olesen case InlineAsm::Kind_RegUse: OS << ":[reguse"; break; 1625459b74b9644c4741d93fe73adc2b06ca6bdb366dJakob Stoklund Olesen case InlineAsm::Kind_RegDef: OS << ":[regdef"; break; 1626459b74b9644c4741d93fe73adc2b06ca6bdb366dJakob Stoklund Olesen case InlineAsm::Kind_RegDefEarlyClobber: OS << ":[regdef-ec"; break; 1627459b74b9644c4741d93fe73adc2b06ca6bdb366dJakob Stoklund Olesen case InlineAsm::Kind_Clobber: OS << ":[clobber"; break; 1628459b74b9644c4741d93fe73adc2b06ca6bdb366dJakob Stoklund Olesen case InlineAsm::Kind_Imm: OS << ":[imm"; break; 1629459b74b9644c4741d93fe73adc2b06ca6bdb366dJakob Stoklund Olesen case InlineAsm::Kind_Mem: OS << ":[mem"; break; 1630459b74b9644c4741d93fe73adc2b06ca6bdb366dJakob Stoklund Olesen default: OS << ":[??" << InlineAsm::getKind(Flag); break; 16317a2ecd3f99ae4dede7e8c1984c2a08984be69363Jakob Stoklund Olesen } 16327a2ecd3f99ae4dede7e8c1984c2a08984be69363Jakob Stoklund Olesen 1633459b74b9644c4741d93fe73adc2b06ca6bdb366dJakob Stoklund Olesen unsigned RCID = 0; 16343821b1885e13dcdda6aa2853f1317d3288256685Nick Lewycky if (InlineAsm::hasRegClassConstraint(Flag, RCID)) { 1635459b74b9644c4741d93fe73adc2b06ca6bdb366dJakob Stoklund Olesen if (TM) 1636459b74b9644c4741d93fe73adc2b06ca6bdb366dJakob Stoklund Olesen OS << ':' << TM->getRegisterInfo()->getRegClass(RCID)->getName(); 1637459b74b9644c4741d93fe73adc2b06ca6bdb366dJakob Stoklund Olesen else 1638459b74b9644c4741d93fe73adc2b06ca6bdb366dJakob Stoklund Olesen OS << ":RC" << RCID; 16393821b1885e13dcdda6aa2853f1317d3288256685Nick Lewycky } 1640459b74b9644c4741d93fe73adc2b06ca6bdb366dJakob Stoklund Olesen 16417a2ecd3f99ae4dede7e8c1984c2a08984be69363Jakob Stoklund Olesen unsigned TiedTo = 0; 16427a2ecd3f99ae4dede7e8c1984c2a08984be69363Jakob Stoklund Olesen if (InlineAsm::isUseOperandTiedToDef(Flag, TiedTo)) 1643459b74b9644c4741d93fe73adc2b06ca6bdb366dJakob Stoklund Olesen OS << " tiedto:$" << TiedTo; 1644459b74b9644c4741d93fe73adc2b06ca6bdb366dJakob Stoklund Olesen 1645459b74b9644c4741d93fe73adc2b06ca6bdb366dJakob Stoklund Olesen OS << ']'; 16467a2ecd3f99ae4dede7e8c1984c2a08984be69363Jakob Stoklund Olesen 16477a2ecd3f99ae4dede7e8c1984c2a08984be69363Jakob Stoklund Olesen // Compute the index of the next operand descriptor. 16487a2ecd3f99ae4dede7e8c1984c2a08984be69363Jakob Stoklund Olesen AsmDescOp += 1 + InlineAsm::getNumOperandRegisters(Flag); 164959b3655564bb6717b296ca9e71f13bf7db45b590Evan Cheng } else 165059b3655564bb6717b296ca9e71f13bf7db45b590Evan Cheng MO.print(OS, TM); 165180f6c5898113806130975fd56d24929b06bf54f8Dan Gohman } 165280f6c5898113806130975fd56d24929b06bf54f8Dan Gohman 165380f6c5898113806130975fd56d24929b06bf54f8Dan Gohman // Briefly indicate whether any call clobbers were omitted. 165480f6c5898113806130975fd56d24929b06bf54f8Dan Gohman if (OmittedAnyCallClobbers) { 1655164558e59c2a321bf670e31a7bdde0d38d79bb67Bill Wendling if (!FirstOp) OS << ","; 165680f6c5898113806130975fd56d24929b06bf54f8Dan Gohman OS << " ..."; 16571049164aa6b06d91d9b3b557a9a213eaf3f6319aChris Lattner } 1658edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 16590ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman bool HaveSemi = false; 16606dd97471c43805b3febf598d50498a09a02e93f4Anton Korobeynikov if (Flags) { 16616dd97471c43805b3febf598d50498a09a02e93f4Anton Korobeynikov if (!HaveSemi) OS << ";"; HaveSemi = true; 16626dd97471c43805b3febf598d50498a09a02e93f4Anton Korobeynikov OS << " flags: "; 16636dd97471c43805b3febf598d50498a09a02e93f4Anton Korobeynikov 16646dd97471c43805b3febf598d50498a09a02e93f4Anton Korobeynikov if (Flags & FrameSetup) 16656dd97471c43805b3febf598d50498a09a02e93f4Anton Korobeynikov OS << "FrameSetup"; 16666dd97471c43805b3febf598d50498a09a02e93f4Anton Korobeynikov } 16676dd97471c43805b3febf598d50498a09a02e93f4Anton Korobeynikov 16688e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman if (!memoperands_empty()) { 16690ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman if (!HaveSemi) OS << ";"; HaveSemi = true; 16700ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman 16710ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman OS << " mem:"; 1672c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman for (mmo_iterator i = memoperands_begin(), e = memoperands_end(); 1673c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman i != e; ++i) { 1674c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman OS << **i; 1675ee56c42168f6c4271593f6018c4409b6a5910302Oscar Fuentes if (llvm::next(i) != e) 1676cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman OS << " "; 167769de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman } 167869de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman } 167969de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman 1680a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen // Print the regclass of any virtual registers encountered. 1681a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen if (MRI && !VirtRegs.empty()) { 1682a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen if (!HaveSemi) OS << ";"; HaveSemi = true; 1683a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen for (unsigned i = 0; i != VirtRegs.size(); ++i) { 1684a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen const TargetRegisterClass *RC = MRI->getRegClass(VirtRegs[i]); 16854314268128be6d54c9a7f0709680e5a5b40f3ab3Jakob Stoklund Olesen OS << " " << RC->getName() << ':' << PrintReg(VirtRegs[i]); 1686a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen for (unsigned j = i+1; j != VirtRegs.size();) { 1687a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen if (MRI->getRegClass(VirtRegs[j]) != RC) { 1688a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen ++j; 1689a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen continue; 1690a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen } 1691a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen if (VirtRegs[i] != VirtRegs[j]) 16924314268128be6d54c9a7f0709680e5a5b40f3ab3Jakob Stoklund Olesen OS << "," << PrintReg(VirtRegs[j]); 1693a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen VirtRegs.erase(VirtRegs.begin()+j); 1694a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen } 1695a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen } 1696a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen } 1697a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen 16986dd97471c43805b3febf598d50498a09a02e93f4Anton Korobeynikov // Print debug location information. 16994d3586dd230a3b16018da138404dbb87faf2008dDevang Patel if (isDebugValue() && getOperand(e - 1).isMetadata()) { 17004d3586dd230a3b16018da138404dbb87faf2008dDevang Patel if (!HaveSemi) OS << ";"; HaveSemi = true; 17014d3586dd230a3b16018da138404dbb87faf2008dDevang Patel DIVariable DV(getOperand(e - 1).getMetadata()); 17024d3586dd230a3b16018da138404dbb87faf2008dDevang Patel OS << " line no:" << DV.getLineNumber(); 17034d3586dd230a3b16018da138404dbb87faf2008dDevang Patel if (MDNode *InlinedAt = DV.getInlinedAt()) { 17044d3586dd230a3b16018da138404dbb87faf2008dDevang Patel DebugLoc InlinedAtDL = DebugLoc::getFromDILocation(InlinedAt); 17054d3586dd230a3b16018da138404dbb87faf2008dDevang Patel if (!InlinedAtDL.isUnknown()) { 17064d3586dd230a3b16018da138404dbb87faf2008dDevang Patel OS << " inlined @[ "; 17074d3586dd230a3b16018da138404dbb87faf2008dDevang Patel printDebugLoc(InlinedAtDL, MF, OS); 17084d3586dd230a3b16018da138404dbb87faf2008dDevang Patel OS << " ]"; 17094d3586dd230a3b16018da138404dbb87faf2008dDevang Patel } 17104d3586dd230a3b16018da138404dbb87faf2008dDevang Patel } 17114d3586dd230a3b16018da138404dbb87faf2008dDevang Patel } else if (!debugLoc.isUnknown() && MF) { 17126dd97471c43805b3febf598d50498a09a02e93f4Anton Korobeynikov if (!HaveSemi) OS << ";"; HaveSemi = true; 171375ae593a2750f9f7995980c3a03c0d972985e394Dan Gohman OS << " dbg:"; 1714da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel printDebugLoc(debugLoc, MF, OS); 1715b5ef27375731ece13a8ae0102b3f3233351036afBill Wendling } 1716b5ef27375731ece13a8ae0102b3f3233351036afBill Wendling 17176dd97471c43805b3febf598d50498a09a02e93f4Anton Korobeynikov OS << '\n'; 17181049164aa6b06d91d9b3b557a9a213eaf3f6319aChris Lattner} 17191049164aa6b06d91d9b3b557a9a213eaf3f6319aChris Lattner 1720b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Andersonbool MachineInstr::addRegisterKilled(unsigned IncomingReg, 17216f0d024a534af18d9e60b3ea757376cd8a3a980eDan Gohman const TargetRegisterInfo *RegInfo, 1722b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson bool AddIfNotFound) { 17239b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng bool isPhysReg = TargetRegisterInfo::isPhysicalRegister(IncomingReg); 1724396618b43a85e12d290a90b181c6af5d7c0c5f11Jakob Stoklund Olesen bool hasAliases = isPhysReg && 1725396618b43a85e12d290a90b181c6af5d7c0c5f11Jakob Stoklund Olesen MCRegAliasIterator(IncomingReg, RegInfo, false).isValid(); 17263f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman bool Found = false; 17279b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng SmallVector<unsigned,4> DeadOps; 17284a23d72ec21d1bdfda69fd16c9fc10cec39f1fedBill Wendling for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 17294a23d72ec21d1bdfda69fd16c9fc10cec39f1fedBill Wendling MachineOperand &MO = getOperand(i); 1730efb8e3e113cbf359d6a838c3b37fedc8305d19bbJakob Stoklund Olesen if (!MO.isReg() || !MO.isUse() || MO.isUndef()) 17319b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng continue; 17329b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng unsigned Reg = MO.getReg(); 17339b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng if (!Reg) 17349b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng continue; 17354a23d72ec21d1bdfda69fd16c9fc10cec39f1fedBill Wendling 17369b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng if (Reg == IncomingReg) { 17373f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman if (!Found) { 17383f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman if (MO.isKill()) 17393f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman // The register is already marked kill. 17403f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman return true; 1741ece48185168ab130b1777feb86d9e3fe80eb87d2Jakob Stoklund Olesen if (isPhysReg && isRegTiedToDefOperand(i)) 1742ece48185168ab130b1777feb86d9e3fe80eb87d2Jakob Stoklund Olesen // Two-address uses of physregs must not be marked kill. 1743ece48185168ab130b1777feb86d9e3fe80eb87d2Jakob Stoklund Olesen return true; 17443f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman MO.setIsKill(); 17453f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman Found = true; 17463f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman } 17473f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman } else if (hasAliases && MO.isKill() && 17483f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman TargetRegisterInfo::isPhysicalRegister(Reg)) { 17499b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng // A super-register kill already exists. 17509b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng if (RegInfo->isSuperRegister(IncomingReg, Reg)) 17512ebc11ac6d19ec806da97bd4f2d49a27932d09fbDan Gohman return true; 17522ebc11ac6d19ec806da97bd4f2d49a27932d09fbDan Gohman if (RegInfo->isSubRegister(IncomingReg, Reg)) 17539b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng DeadOps.push_back(i); 1754b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson } 1755b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson } 1756b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson 17579b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng // Trim unneeded kill operands. 17589b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng while (!DeadOps.empty()) { 17599b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng unsigned OpIdx = DeadOps.back(); 17609b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng if (getOperand(OpIdx).isImplicit()) 17619b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng RemoveOperand(OpIdx); 17629b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng else 17639b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng getOperand(OpIdx).setIsKill(false); 17649b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng DeadOps.pop_back(); 17659b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng } 17669b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng 17674a23d72ec21d1bdfda69fd16c9fc10cec39f1fedBill Wendling // If not found, this means an alias of one of the operands is killed. Add a 1768b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson // new implicit operand if required. 17693f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman if (!Found && AddIfNotFound) { 17704a23d72ec21d1bdfda69fd16c9fc10cec39f1fedBill Wendling addOperand(MachineOperand::CreateReg(IncomingReg, 17714a23d72ec21d1bdfda69fd16c9fc10cec39f1fedBill Wendling false /*IsDef*/, 17724a23d72ec21d1bdfda69fd16c9fc10cec39f1fedBill Wendling true /*IsImp*/, 17734a23d72ec21d1bdfda69fd16c9fc10cec39f1fedBill Wendling true /*IsKill*/)); 1774b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson return true; 1775b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson } 17763f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman return Found; 1777b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson} 1778b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson 17791a96c914315b0286d84c507d696484e2c95875a4Jakob Stoklund Olesenvoid MachineInstr::clearRegisterKills(unsigned Reg, 17801a96c914315b0286d84c507d696484e2c95875a4Jakob Stoklund Olesen const TargetRegisterInfo *RegInfo) { 17811a96c914315b0286d84c507d696484e2c95875a4Jakob Stoklund Olesen if (!TargetRegisterInfo::isPhysicalRegister(Reg)) 17821a96c914315b0286d84c507d696484e2c95875a4Jakob Stoklund Olesen RegInfo = 0; 17831a96c914315b0286d84c507d696484e2c95875a4Jakob Stoklund Olesen for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 17841a96c914315b0286d84c507d696484e2c95875a4Jakob Stoklund Olesen MachineOperand &MO = getOperand(i); 17851a96c914315b0286d84c507d696484e2c95875a4Jakob Stoklund Olesen if (!MO.isReg() || !MO.isUse() || !MO.isKill()) 17861a96c914315b0286d84c507d696484e2c95875a4Jakob Stoklund Olesen continue; 17871a96c914315b0286d84c507d696484e2c95875a4Jakob Stoklund Olesen unsigned OpReg = MO.getReg(); 17881a96c914315b0286d84c507d696484e2c95875a4Jakob Stoklund Olesen if (OpReg == Reg || (RegInfo && RegInfo->isSuperRegister(Reg, OpReg))) 17891a96c914315b0286d84c507d696484e2c95875a4Jakob Stoklund Olesen MO.setIsKill(false); 17901a96c914315b0286d84c507d696484e2c95875a4Jakob Stoklund Olesen } 17911a96c914315b0286d84c507d696484e2c95875a4Jakob Stoklund Olesen} 17921a96c914315b0286d84c507d696484e2c95875a4Jakob Stoklund Olesen 1793b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Andersonbool MachineInstr::addRegisterDead(unsigned IncomingReg, 17946f0d024a534af18d9e60b3ea757376cd8a3a980eDan Gohman const TargetRegisterInfo *RegInfo, 1795b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson bool AddIfNotFound) { 17969b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng bool isPhysReg = TargetRegisterInfo::isPhysicalRegister(IncomingReg); 1797396618b43a85e12d290a90b181c6af5d7c0c5f11Jakob Stoklund Olesen bool hasAliases = isPhysReg && 1798396618b43a85e12d290a90b181c6af5d7c0c5f11Jakob Stoklund Olesen MCRegAliasIterator(IncomingReg, RegInfo, false).isValid(); 17993f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman bool Found = false; 18009b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng SmallVector<unsigned,4> DeadOps; 1801b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 1802b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson MachineOperand &MO = getOperand(i); 1803d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (!MO.isReg() || !MO.isDef()) 18049b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng continue; 18059b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng unsigned Reg = MO.getReg(); 18063f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman if (!Reg) 18073f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman continue; 18083f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman 18099b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng if (Reg == IncomingReg) { 1810b793bc1ccabef36b3223bae69f5e94a8e98d22ebJakob Stoklund Olesen MO.setIsDead(); 1811b793bc1ccabef36b3223bae69f5e94a8e98d22ebJakob Stoklund Olesen Found = true; 18123f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman } else if (hasAliases && MO.isDead() && 18133f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman TargetRegisterInfo::isPhysicalRegister(Reg)) { 18149b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng // There exists a super-register that's marked dead. 18159b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng if (RegInfo->isSuperRegister(IncomingReg, Reg)) 18162ebc11ac6d19ec806da97bd4f2d49a27932d09fbDan Gohman return true; 1817275fd2523edd30e75af6398c25d47e94cc32f150Jakob Stoklund Olesen if (RegInfo->isSubRegister(IncomingReg, Reg)) 18189b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng DeadOps.push_back(i); 1819b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson } 1820b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson } 1821b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson 18229b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng // Trim unneeded dead operands. 18239b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng while (!DeadOps.empty()) { 18249b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng unsigned OpIdx = DeadOps.back(); 18259b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng if (getOperand(OpIdx).isImplicit()) 18269b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng RemoveOperand(OpIdx); 18279b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng else 18289b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng getOperand(OpIdx).setIsDead(false); 18299b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng DeadOps.pop_back(); 18309b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng } 18319b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng 18323f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman // If not found, this means an alias of one of the operands is dead. Add a 18333f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman // new implicit operand if required. 183431530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner if (Found || !AddIfNotFound) 183531530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner return Found; 1836ee61d67c2f1105e23b2ea5110389f3b7b713b504Jim Grosbach 183731530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner addOperand(MachineOperand::CreateReg(IncomingReg, 183831530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner true /*IsDef*/, 183931530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner true /*IsImp*/, 184031530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner false /*IsKill*/, 184131530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner true /*IsDead*/)); 184231530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner return true; 1843b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson} 18448efadf94b568c08de3ff8ce35fd904a935387406Jakob Stoklund Olesen 18458efadf94b568c08de3ff8ce35fd904a935387406Jakob Stoklund Olesenvoid MachineInstr::addRegisterDefined(unsigned IncomingReg, 18468efadf94b568c08de3ff8ce35fd904a935387406Jakob Stoklund Olesen const TargetRegisterInfo *RegInfo) { 184763e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen if (TargetRegisterInfo::isPhysicalRegister(IncomingReg)) { 184863e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen MachineOperand *MO = findRegisterDefOperand(IncomingReg, false, RegInfo); 184963e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen if (MO) 185063e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen return; 185163e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen } else { 185263e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 185363e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen const MachineOperand &MO = getOperand(i); 185463e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen if (MO.isReg() && MO.getReg() == IncomingReg && MO.isDef() && 185563e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen MO.getSubReg() == 0) 185663e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen return; 185763e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen } 185863e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen } 185963e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen addOperand(MachineOperand::CreateReg(IncomingReg, 186063e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen true /*IsDef*/, 186163e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen true /*IsImp*/)); 18628efadf94b568c08de3ff8ce35fd904a935387406Jakob Stoklund Olesen} 186367eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Cheng 1864a37818dbb119bda75273f16b8484732e742cdbb7Jakob Stoklund Olesenvoid MachineInstr::setPhysRegsDeadExcept(ArrayRef<unsigned> UsedRegs, 1865db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman const TargetRegisterInfo &TRI) { 186677180e0b402fff318cffd89a2251e46b3dce4064Jakob Stoklund Olesen bool HasRegMask = false; 1867db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 1868db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman MachineOperand &MO = getOperand(i); 186977180e0b402fff318cffd89a2251e46b3dce4064Jakob Stoklund Olesen if (MO.isRegMask()) { 187077180e0b402fff318cffd89a2251e46b3dce4064Jakob Stoklund Olesen HasRegMask = true; 187177180e0b402fff318cffd89a2251e46b3dce4064Jakob Stoklund Olesen continue; 187277180e0b402fff318cffd89a2251e46b3dce4064Jakob Stoklund Olesen } 1873db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman if (!MO.isReg() || !MO.isDef()) continue; 1874db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman unsigned Reg = MO.getReg(); 187559cb77fb11ec547f60ef0ff4a8ccf3bd8007ae46Jakob Stoklund Olesen if (!TargetRegisterInfo::isPhysicalRegister(Reg)) continue; 1876db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman bool Dead = true; 1877a37818dbb119bda75273f16b8484732e742cdbb7Jakob Stoklund Olesen for (ArrayRef<unsigned>::iterator I = UsedRegs.begin(), E = UsedRegs.end(); 1878a37818dbb119bda75273f16b8484732e742cdbb7Jakob Stoklund Olesen I != E; ++I) 1879db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman if (TRI.regsOverlap(*I, Reg)) { 1880db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman Dead = false; 1881db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman break; 1882db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman } 1883db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman // If there are no uses, including partial uses, the def is dead. 1884db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman if (Dead) MO.setIsDead(); 1885db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman } 188677180e0b402fff318cffd89a2251e46b3dce4064Jakob Stoklund Olesen 188777180e0b402fff318cffd89a2251e46b3dce4064Jakob Stoklund Olesen // This is a call with a register mask operand. 188877180e0b402fff318cffd89a2251e46b3dce4064Jakob Stoklund Olesen // Mask clobbers are always dead, so add defs for the non-dead defines. 188977180e0b402fff318cffd89a2251e46b3dce4064Jakob Stoklund Olesen if (HasRegMask) 189077180e0b402fff318cffd89a2251e46b3dce4064Jakob Stoklund Olesen for (ArrayRef<unsigned>::iterator I = UsedRegs.begin(), E = UsedRegs.end(); 189177180e0b402fff318cffd89a2251e46b3dce4064Jakob Stoklund Olesen I != E; ++I) 189277180e0b402fff318cffd89a2251e46b3dce4064Jakob Stoklund Olesen addRegisterDefined(*I, &TRI); 1893db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman} 1894db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman 189567eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Chengunsigned 189667eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan ChengMachineInstrExpressionTrait::getHashValue(const MachineInstr* const &MI) { 1897fc22625eb04d39b0de77090702cf50a9bcda3ddbChandler Carruth // Build up a buffer of hash code components. 1898fc22625eb04d39b0de77090702cf50a9bcda3ddbChandler Carruth SmallVector<size_t, 8> HashComponents; 1899fc22625eb04d39b0de77090702cf50a9bcda3ddbChandler Carruth HashComponents.reserve(MI->getNumOperands() + 1); 1900fc22625eb04d39b0de77090702cf50a9bcda3ddbChandler Carruth HashComponents.push_back(MI->getOpcode()); 190167eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Cheng for (unsigned i = 0, e = MI->getNumOperands(); i != e; ++i) { 190267eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Cheng const MachineOperand &MO = MI->getOperand(i); 1903d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth if (MO.isReg() && MO.isDef() && 1904d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth TargetRegisterInfo::isVirtualRegister(MO.getReg())) 1905d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth continue; // Skip virtual register defs. 1906d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth 1907d862d697d2d6f7d4e8fdd0b70686a6695e04d362Chandler Carruth HashComponents.push_back(hash_value(MO)); 1908fc22625eb04d39b0de77090702cf50a9bcda3ddbChandler Carruth } 1909fc22625eb04d39b0de77090702cf50a9bcda3ddbChandler Carruth return hash_combine_range(HashComponents.begin(), HashComponents.end()); 191067eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Cheng} 1911d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen 1912d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesenvoid MachineInstr::emitError(StringRef Msg) const { 1913d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen // Find the source location cookie. 1914d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen unsigned LocCookie = 0; 1915d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen const MDNode *LocMD = 0; 1916d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen for (unsigned i = getNumOperands(); i != 0; --i) { 1917d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen if (getOperand(i-1).isMetadata() && 1918d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen (LocMD = getOperand(i-1).getMetadata()) && 1919d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen LocMD->getNumOperands() != 0) { 1920d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen if (const ConstantInt *CI = dyn_cast<ConstantInt>(LocMD->getOperand(0))) { 1921d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen LocCookie = CI->getZExtValue(); 1922d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen break; 1923d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen } 1924d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen } 1925d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen } 1926d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen 1927d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen if (const MachineBasicBlock *MBB = getParent()) 1928d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen if (const MachineFunction *MF = MBB->getParent()) 1929d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen return MF->getMMI().getModule()->getContext().emitError(LocCookie, Msg); 1930d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen report_fatal_error(Msg); 1931d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen} 1932