MachineInstr.cpp revision f8e1e3e729473b8b2b7ee6134b6417976af84d05
1e138b3dd1ff02d826233482831318708a166ed93Chris Lattner//===-- lib/CodeGen/MachineInstr.cpp --------------------------------------===// 2edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman// 3b576c94c15af9a440f69d9d03c2afead7971118cJohn Criswell// The LLVM Compiler Infrastructure 4b576c94c15af9a440f69d9d03c2afead7971118cJohn Criswell// 54ee451de366474b9c228b4e5fa573795a715216dChris Lattner// This file is distributed under the University of Illinois Open Source 64ee451de366474b9c228b4e5fa573795a715216dChris Lattner// License. See LICENSE.TXT for details. 7edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman// 8b576c94c15af9a440f69d9d03c2afead7971118cJohn Criswell//===----------------------------------------------------------------------===// 921326fc2ad47ee7e73a8c0b03a4a0cc0b0a0c4e8Brian Gaeke// 1021326fc2ad47ee7e73a8c0b03a4a0cc0b0a0c4e8Brian Gaeke// Methods common to all machine instructions. 1121326fc2ad47ee7e73a8c0b03a4a0cc0b0a0c4e8Brian Gaeke// 12035dfbe7f2d109008d2d62d9f2a67efb477a7ab6Chris Lattner//===----------------------------------------------------------------------===// 1370bc4b5d1a3795a8f41be96723cfcbccac8e1671Vikram S. Adve 14822b4fb896846b87dd11a330ae13f2239329aeefChris Lattner#include "llvm/CodeGen/MachineInstr.h" 15fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng#include "llvm/Constants.h" 168c2b52552c90f39e4b2fed43e309e599e742b6acDan Gohman#include "llvm/Function.h" 17fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng#include "llvm/InlineAsm.h" 18d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen#include "llvm/LLVMContext.h" 1972aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner#include "llvm/Metadata.h" 20d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen#include "llvm/Module.h" 215e9cd434234a36089daeee915f1dc02b96947fbaChris Lattner#include "llvm/Type.h" 2284bc5427d6883f73cfeae3da640acd011d35c006Chris Lattner#include "llvm/Value.h" 23cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman#include "llvm/Assembly/Writer.h" 24506049f29f4f202a8e45feb916cc0264440a7f6dEvan Cheng#include "llvm/CodeGen/MachineConstantPool.h" 258517e1f0beea9b5e47974f083396d53294c390adChris Lattner#include "llvm/CodeGen/MachineFunction.h" 26c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman#include "llvm/CodeGen/MachineMemOperand.h" 27d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen#include "llvm/CodeGen/MachineModuleInfo.h" 2862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner#include "llvm/CodeGen/MachineRegisterInfo.h" 2969de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman#include "llvm/CodeGen/PseudoSourceValue.h" 30e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng#include "llvm/MC/MCInstrDesc.h" 3172aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner#include "llvm/MC/MCSymbol.h" 321049164aa6b06d91d9b3b557a9a213eaf3f6319aChris Lattner#include "llvm/Target/TargetMachine.h" 33bb81d97feb396a8bb21d074db1c57e9f66525f40Evan Cheng#include "llvm/Target/TargetInstrInfo.h" 346f0d024a534af18d9e60b3ea757376cd8a3a980eDan Gohman#include "llvm/Target/TargetRegisterInfo.h" 35e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman#include "llvm/Analysis/AliasAnalysis.h" 36a26eae64ddf607549f9e47046d46ea5b9ec648b4Argyrios Kyrtzidis#include "llvm/Analysis/DebugInfo.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" 430742b59913a7760eb26f08121cd244a37e83e3b3Chris Lattnerusing namespace llvm; 44d0fde30ce850b78371fd1386338350591f9ff494Brian Gaeke 45f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner//===----------------------------------------------------------------------===// 46f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner// MachineOperand Implementation 47f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner//===----------------------------------------------------------------------===// 48f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner 4962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// AddRegOperandToRegInfo - Add this register operand to the specified 5062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// MachineRegisterInfo. If it is null, then the next/prev fields should be 5162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// explicitly nulled out. 5262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattnervoid MachineOperand::AddRegOperandToRegInfo(MachineRegisterInfo *RegInfo) { 53d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman assert(isReg() && "Can only add reg operand to use lists"); 54ee61d67c2f1105e23b2ea5110389f3b7b713b504Jim Grosbach 5562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // If the reginfo pointer is null, just explicitly null out or next/prev 5662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // pointers, to ensure they are not garbage. 5762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (RegInfo == 0) { 5862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Contents.Reg.Prev = 0; 5962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Contents.Reg.Next = 0; 6062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner return; 6162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 62ee61d67c2f1105e23b2ea5110389f3b7b713b504Jim Grosbach 6362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Otherwise, add this operand to the head of the registers use/def list. 6480fe5311b5e9e5c4642ff46ba2377173c17797f6Chris Lattner MachineOperand **Head = &RegInfo->getRegUseDefListHead(getReg()); 65ee61d67c2f1105e23b2ea5110389f3b7b713b504Jim Grosbach 6680fe5311b5e9e5c4642ff46ba2377173c17797f6Chris Lattner // For SSA values, we prefer to keep the definition at the start of the list. 6780fe5311b5e9e5c4642ff46ba2377173c17797f6Chris Lattner // we do this by skipping over the definition if it is at the head of the 6880fe5311b5e9e5c4642ff46ba2377173c17797f6Chris Lattner // list. 6980fe5311b5e9e5c4642ff46ba2377173c17797f6Chris Lattner if (*Head && (*Head)->isDef()) 7080fe5311b5e9e5c4642ff46ba2377173c17797f6Chris Lattner Head = &(*Head)->Contents.Reg.Next; 71ee61d67c2f1105e23b2ea5110389f3b7b713b504Jim Grosbach 7280fe5311b5e9e5c4642ff46ba2377173c17797f6Chris Lattner Contents.Reg.Next = *Head; 7362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (Contents.Reg.Next) { 7462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner assert(getReg() == Contents.Reg.Next->getReg() && 7562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner "Different regs on the same list!"); 7662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Contents.Reg.Next->Contents.Reg.Prev = &Contents.Reg.Next; 7762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 78ee61d67c2f1105e23b2ea5110389f3b7b713b504Jim Grosbach 7980fe5311b5e9e5c4642ff46ba2377173c17797f6Chris Lattner Contents.Reg.Prev = Head; 8080fe5311b5e9e5c4642ff46ba2377173c17797f6Chris Lattner *Head = this; 8162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner} 8262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 833bc1a3735f216f4a122fe4a05d39f63888ab205aDan Gohman/// RemoveRegOperandFromRegInfo - Remove this register operand from the 843bc1a3735f216f4a122fe4a05d39f63888ab205aDan Gohman/// MachineRegisterInfo it is linked with. 853bc1a3735f216f4a122fe4a05d39f63888ab205aDan Gohmanvoid MachineOperand::RemoveRegOperandFromRegInfo() { 863bc1a3735f216f4a122fe4a05d39f63888ab205aDan Gohman assert(isOnRegUseList() && "Reg operand is not on a use list"); 873bc1a3735f216f4a122fe4a05d39f63888ab205aDan Gohman // Unlink this from the doubly linked list of operands. 883bc1a3735f216f4a122fe4a05d39f63888ab205aDan Gohman MachineOperand *NextOp = Contents.Reg.Next; 89ee61d67c2f1105e23b2ea5110389f3b7b713b504Jim Grosbach *Contents.Reg.Prev = NextOp; 903bc1a3735f216f4a122fe4a05d39f63888ab205aDan Gohman if (NextOp) { 913bc1a3735f216f4a122fe4a05d39f63888ab205aDan Gohman assert(NextOp->getReg() == getReg() && "Corrupt reg use/def chain!"); 923bc1a3735f216f4a122fe4a05d39f63888ab205aDan Gohman NextOp->Contents.Reg.Prev = Contents.Reg.Prev; 933bc1a3735f216f4a122fe4a05d39f63888ab205aDan Gohman } 943bc1a3735f216f4a122fe4a05d39f63888ab205aDan Gohman Contents.Reg.Prev = 0; 953bc1a3735f216f4a122fe4a05d39f63888ab205aDan Gohman Contents.Reg.Next = 0; 963bc1a3735f216f4a122fe4a05d39f63888ab205aDan Gohman} 973bc1a3735f216f4a122fe4a05d39f63888ab205aDan Gohman 9862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattnervoid MachineOperand::setReg(unsigned Reg) { 9962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (getReg() == Reg) return; // No change. 100ee61d67c2f1105e23b2ea5110389f3b7b713b504Jim Grosbach 10162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Otherwise, we have to change the register. If this operand is embedded 10262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // into a machine function, we need to update the old and new register's 10362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // use/def lists. 10462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (MachineInstr *MI = getParent()) 10562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (MachineBasicBlock *MBB = MI->getParent()) 10662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (MachineFunction *MF = MBB->getParent()) { 10762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner RemoveRegOperandFromRegInfo(); 1082594746045258958673ebe42db2a27a4d05b0b73Jakob Stoklund Olesen SmallContents.RegNo = Reg; 10962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner AddRegOperandToRegInfo(&MF->getRegInfo()); 11062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner return; 11162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 112ee61d67c2f1105e23b2ea5110389f3b7b713b504Jim Grosbach 11362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Otherwise, just change the register, no problem. :) 1142594746045258958673ebe42db2a27a4d05b0b73Jakob Stoklund Olesen SmallContents.RegNo = Reg; 11562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner} 11662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 1172da53370241fdd1b5c291483311b34e609f06c73Jakob Stoklund Olesenvoid MachineOperand::substVirtReg(unsigned Reg, unsigned SubIdx, 1182da53370241fdd1b5c291483311b34e609f06c73Jakob Stoklund Olesen const TargetRegisterInfo &TRI) { 1192da53370241fdd1b5c291483311b34e609f06c73Jakob Stoklund Olesen assert(TargetRegisterInfo::isVirtualRegister(Reg)); 1202da53370241fdd1b5c291483311b34e609f06c73Jakob Stoklund Olesen if (SubIdx && getSubReg()) 1212da53370241fdd1b5c291483311b34e609f06c73Jakob Stoklund Olesen SubIdx = TRI.composeSubRegIndices(SubIdx, getSubReg()); 1222da53370241fdd1b5c291483311b34e609f06c73Jakob Stoklund Olesen setReg(Reg); 123a5135f60dd95275dcbc1123f866889151ced933dJakob Stoklund Olesen if (SubIdx) 124a5135f60dd95275dcbc1123f866889151ced933dJakob Stoklund Olesen setSubReg(SubIdx); 1252da53370241fdd1b5c291483311b34e609f06c73Jakob Stoklund Olesen} 1262da53370241fdd1b5c291483311b34e609f06c73Jakob Stoklund Olesen 1272da53370241fdd1b5c291483311b34e609f06c73Jakob Stoklund Olesenvoid MachineOperand::substPhysReg(unsigned Reg, const TargetRegisterInfo &TRI) { 1282da53370241fdd1b5c291483311b34e609f06c73Jakob Stoklund Olesen assert(TargetRegisterInfo::isPhysicalRegister(Reg)); 1292da53370241fdd1b5c291483311b34e609f06c73Jakob Stoklund Olesen if (getSubReg()) { 1302da53370241fdd1b5c291483311b34e609f06c73Jakob Stoklund Olesen Reg = TRI.getSubReg(Reg, getSubReg()); 131cf724f078623e786fc92335fdb0ec70b46f2e86dJakob Stoklund Olesen // Note that getSubReg() may return 0 if the sub-register doesn't exist. 132cf724f078623e786fc92335fdb0ec70b46f2e86dJakob Stoklund Olesen // That won't happen in legal code. 1332da53370241fdd1b5c291483311b34e609f06c73Jakob Stoklund Olesen setSubReg(0); 1342da53370241fdd1b5c291483311b34e609f06c73Jakob Stoklund Olesen } 1352da53370241fdd1b5c291483311b34e609f06c73Jakob Stoklund Olesen setReg(Reg); 1362da53370241fdd1b5c291483311b34e609f06c73Jakob Stoklund Olesen} 1372da53370241fdd1b5c291483311b34e609f06c73Jakob Stoklund Olesen 13862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// ChangeToImmediate - Replace this operand with a new immediate operand of 13962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// the specified value. If an operand is known to be an immediate already, 14062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// the setImm method should be used. 14162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattnervoid MachineOperand::ChangeToImmediate(int64_t ImmVal) { 14262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // If this operand is currently a register operand, and if this is in a 14362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // function, deregister the operand from the register's use/def list. 144d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (isReg() && getParent() && getParent()->getParent() && 14562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner getParent()->getParent()->getParent()) 14662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner RemoveRegOperandFromRegInfo(); 147ee61d67c2f1105e23b2ea5110389f3b7b713b504Jim Grosbach 14862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner OpKind = MO_Immediate; 14962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Contents.ImmVal = ImmVal; 15062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner} 15162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 15262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// ChangeToRegister - Replace this operand with a new register operand of 15362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// the specified value. If an operand is known to be an register already, 15462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// the setReg method should be used. 15562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattnervoid MachineOperand::ChangeToRegister(unsigned Reg, bool isDef, bool isImp, 1569653f9ec970147a12216d787078eab2f8b9c122aDale Johannesen bool isKill, bool isDead, bool isUndef, 1579653f9ec970147a12216d787078eab2f8b9c122aDale Johannesen bool isDebug) { 158ee61d67c2f1105e23b2ea5110389f3b7b713b504Jim Grosbach // If this operand is already a register operand, use setReg to update the 15962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // register's use/def lists. 160d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (isReg()) { 161e009180f2bbcf5edbe3b583936c37c4b3be2d082Dale Johannesen assert(!isEarlyClobber()); 16262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner setReg(Reg); 16362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } else { 16462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Otherwise, change this to a register and set the reg#. 16562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner OpKind = MO_Register; 1662594746045258958673ebe42db2a27a4d05b0b73Jakob Stoklund Olesen SmallContents.RegNo = Reg; 16762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 16862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // If this operand is embedded in a function, add the operand to the 16962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // register's use/def list. 17062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (MachineInstr *MI = getParent()) 17162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (MachineBasicBlock *MBB = MI->getParent()) 17262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (MachineFunction *MF = MBB->getParent()) 17362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner AddRegOperandToRegInfo(&MF->getRegInfo()); 17462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 17562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 17662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner IsDef = isDef; 17762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner IsImp = isImp; 17862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner IsKill = isKill; 17962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner IsDead = isDead; 1804784f1fc73abf6005b7b7262d395af71b57b1255Evan Cheng IsUndef = isUndef; 181e009180f2bbcf5edbe3b583936c37c4b3be2d082Dale Johannesen IsEarlyClobber = false; 1829653f9ec970147a12216d787078eab2f8b9c122aDale Johannesen IsDebug = isDebug; 18362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner SubReg = 0; 18462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner} 18562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 186f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner/// isIdenticalTo - Return true if this operand is identical to the specified 187f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner/// operand. 188f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattnerbool MachineOperand::isIdenticalTo(const MachineOperand &Other) const { 18931530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner if (getType() != Other.getType() || 19031530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner getTargetFlags() != Other.getTargetFlags()) 19131530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner return false; 192ee61d67c2f1105e23b2ea5110389f3b7b713b504Jim Grosbach 193f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner switch (getType()) { 194c23197a26f34f559ea9797de51e187087c039c42Torok Edwin default: llvm_unreachable("Unrecognized operand type"); 195f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_Register: 196f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner return getReg() == Other.getReg() && isDef() == Other.isDef() && 197f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner getSubReg() == Other.getSubReg(); 198f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_Immediate: 199f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner return getImm() == Other.getImm(); 200c20fb63ebdbc8caec4566eaa7bc5be7f0a14cca1Cameron Zwarich case MachineOperand::MO_CImmediate: 201c20fb63ebdbc8caec4566eaa7bc5be7f0a14cca1Cameron Zwarich return getCImm() == Other.getCImm(); 202e8b7ccf0c9a06831266d690d0b10ead71e0a4ac5Nate Begeman case MachineOperand::MO_FPImmediate: 203e8b7ccf0c9a06831266d690d0b10ead71e0a4ac5Nate Begeman return getFPImm() == Other.getFPImm(); 204f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_MachineBasicBlock: 205f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner return getMBB() == Other.getMBB(); 206f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_FrameIndex: 2078aa797aa51cd4ea1ec6f46f4891a6897944b75b2Chris Lattner return getIndex() == Other.getIndex(); 208f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_ConstantPoolIndex: 2098aa797aa51cd4ea1ec6f46f4891a6897944b75b2Chris Lattner return getIndex() == Other.getIndex() && getOffset() == Other.getOffset(); 210f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_JumpTableIndex: 2118aa797aa51cd4ea1ec6f46f4891a6897944b75b2Chris Lattner return getIndex() == Other.getIndex(); 212f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_GlobalAddress: 213f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner return getGlobal() == Other.getGlobal() && getOffset() == Other.getOffset(); 214f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_ExternalSymbol: 215f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner return !strcmp(getSymbolName(), Other.getSymbolName()) && 216f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner getOffset() == Other.getOffset(); 2178c2b52552c90f39e4b2fed43e309e599e742b6acDan Gohman case MachineOperand::MO_BlockAddress: 2188c2b52552c90f39e4b2fed43e309e599e742b6acDan Gohman return getBlockAddress() == Other.getBlockAddress(); 21972aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner case MachineOperand::MO_MCSymbol: 22072aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner return getMCSymbol() == Other.getMCSymbol(); 22124ad3ed71fe93059d1b46ffdbfe63259762bf547Chris Lattner case MachineOperand::MO_Metadata: 22224ad3ed71fe93059d1b46ffdbfe63259762bf547Chris Lattner return getMetadata() == Other.getMetadata(); 223f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner } 224f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner} 225f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner 226f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner/// print - Print the specified machine operand. 227f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner/// 2285ca6bd14a00ba5310ce1a632d3a0cc8f8af31433Mon P Wangvoid MachineOperand::print(raw_ostream &OS, const TargetMachine *TM) const { 22980f6c5898113806130975fd56d24929b06bf54f8Dan Gohman // If the instruction is embedded into a basic block, we can find the 23080f6c5898113806130975fd56d24929b06bf54f8Dan Gohman // target info for the instruction. 23180f6c5898113806130975fd56d24929b06bf54f8Dan Gohman if (!TM) 23280f6c5898113806130975fd56d24929b06bf54f8Dan Gohman if (const MachineInstr *MI = getParent()) 23380f6c5898113806130975fd56d24929b06bf54f8Dan Gohman if (const MachineBasicBlock *MBB = MI->getParent()) 23480f6c5898113806130975fd56d24929b06bf54f8Dan Gohman if (const MachineFunction *MF = MBB->getParent()) 23580f6c5898113806130975fd56d24929b06bf54f8Dan Gohman TM = &MF->getTarget(); 2364314268128be6d54c9a7f0709680e5a5b40f3ab3Jakob Stoklund Olesen const TargetRegisterInfo *TRI = TM ? TM->getRegisterInfo() : 0; 23780f6c5898113806130975fd56d24929b06bf54f8Dan Gohman 238f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner switch (getType()) { 239f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_Register: 2404314268128be6d54c9a7f0709680e5a5b40f3ab3Jakob Stoklund Olesen OS << PrintReg(getReg(), TRI, getSubReg()); 2412ccc83966914593d98af5671ce10a3bf2dcf7513Dan Gohman 2424784f1fc73abf6005b7b7262d395af71b57b1255Evan Cheng if (isDef() || isKill() || isDead() || isImplicit() || isUndef() || 2434784f1fc73abf6005b7b7262d395af71b57b1255Evan Cheng isEarlyClobber()) { 24431530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner OS << '<'; 245f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner bool NeedComma = false; 2460789707c49135bba69e0e308d0fbc41bb7cbe78aEvan Cheng if (isDef()) { 24731530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner if (NeedComma) OS << ','; 248913d3dfac43f29921467f33aa743f28ee1bfc5d1Dale Johannesen if (isEarlyClobber()) 249913d3dfac43f29921467f33aa743f28ee1bfc5d1Dale Johannesen OS << "earlyclobber,"; 2500789707c49135bba69e0e308d0fbc41bb7cbe78aEvan Cheng if (isImplicit()) 2510789707c49135bba69e0e308d0fbc41bb7cbe78aEvan Cheng OS << "imp-"; 252f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner OS << "def"; 253f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner NeedComma = true; 2545affca0763836e15ca15e78ed3a0fd56ef6b2e92Evan Cheng } else if (isImplicit()) { 2550789707c49135bba69e0e308d0fbc41bb7cbe78aEvan Cheng OS << "imp-use"; 2565affca0763836e15ca15e78ed3a0fd56ef6b2e92Evan Cheng NeedComma = true; 2575affca0763836e15ca15e78ed3a0fd56ef6b2e92Evan Cheng } 2580789707c49135bba69e0e308d0fbc41bb7cbe78aEvan Cheng 2594784f1fc73abf6005b7b7262d395af71b57b1255Evan Cheng if (isKill() || isDead() || isUndef()) { 26031530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner if (NeedComma) OS << ','; 261181eb737b28628adc4376b973610a02039385026Bill Wendling if (isKill()) OS << "kill"; 262181eb737b28628adc4376b973610a02039385026Bill Wendling if (isDead()) OS << "dead"; 2634784f1fc73abf6005b7b7262d395af71b57b1255Evan Cheng if (isUndef()) { 2644784f1fc73abf6005b7b7262d395af71b57b1255Evan Cheng if (isKill() || isDead()) 2654784f1fc73abf6005b7b7262d395af71b57b1255Evan Cheng OS << ','; 2664784f1fc73abf6005b7b7262d395af71b57b1255Evan Cheng OS << "undef"; 2674784f1fc73abf6005b7b7262d395af71b57b1255Evan Cheng } 268f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner } 26931530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner OS << '>'; 270f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner } 271f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner break; 272f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_Immediate: 273f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner OS << getImm(); 274f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner break; 2758594d429e02c688d428036f8563f09572da3fbffDevang Patel case MachineOperand::MO_CImmediate: 2768594d429e02c688d428036f8563f09572da3fbffDevang Patel getCImm()->getValue().print(OS, false); 2778594d429e02c688d428036f8563f09572da3fbffDevang Patel break; 278e8b7ccf0c9a06831266d690d0b10ead71e0a4ac5Nate Begeman case MachineOperand::MO_FPImmediate: 279cf0fe8d813727383d630055bb9d1cde21b00b7e7Chris Lattner if (getFPImm()->getType()->isFloatTy()) 280e8b7ccf0c9a06831266d690d0b10ead71e0a4ac5Nate Begeman OS << getFPImm()->getValueAPF().convertToFloat(); 28131530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner else 282e8b7ccf0c9a06831266d690d0b10ead71e0a4ac5Nate Begeman OS << getFPImm()->getValueAPF().convertToDouble(); 283e8b7ccf0c9a06831266d690d0b10ead71e0a4ac5Nate Begeman break; 284f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_MachineBasicBlock: 2850ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman OS << "<BB#" << getMBB()->getNumber() << ">"; 286f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner break; 287f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_FrameIndex: 28831530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner OS << "<fi#" << getIndex() << '>'; 289f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner break; 290f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_ConstantPoolIndex: 2918aa797aa51cd4ea1ec6f46f4891a6897944b75b2Chris Lattner OS << "<cp#" << getIndex(); 292f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner if (getOffset()) OS << "+" << getOffset(); 29331530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner OS << '>'; 294f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner break; 295f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_JumpTableIndex: 29631530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner OS << "<jt#" << getIndex() << '>'; 297f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner break; 298f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_GlobalAddress: 2998d4e3b5b48b245ed65259270a53fcaf0bf91d9f7Dan Gohman OS << "<ga:"; 3008d4e3b5b48b245ed65259270a53fcaf0bf91d9f7Dan Gohman WriteAsOperand(OS, getGlobal(), /*PrintType=*/false); 301f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner if (getOffset()) OS << "+" << getOffset(); 30231530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner OS << '>'; 303f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner break; 304f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner case MachineOperand::MO_ExternalSymbol: 305f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner OS << "<es:" << getSymbolName(); 306f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner if (getOffset()) OS << "+" << getOffset(); 30731530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner OS << '>'; 308f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner break; 3098c2b52552c90f39e4b2fed43e309e599e742b6acDan Gohman case MachineOperand::MO_BlockAddress: 3105f72a5ebc84a1935878b5b2d3166a505c520cdfcDale Johannesen OS << '<'; 3110ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman WriteAsOperand(OS, getBlockAddress(), /*PrintType=*/false); 3128c2b52552c90f39e4b2fed43e309e599e742b6acDan Gohman OS << '>'; 3138c2b52552c90f39e4b2fed43e309e599e742b6acDan Gohman break; 3145f72a5ebc84a1935878b5b2d3166a505c520cdfcDale Johannesen case MachineOperand::MO_Metadata: 3155f72a5ebc84a1935878b5b2d3166a505c520cdfcDale Johannesen OS << '<'; 3165f72a5ebc84a1935878b5b2d3166a505c520cdfcDale Johannesen WriteAsOperand(OS, getMetadata(), /*PrintType=*/false); 3175f72a5ebc84a1935878b5b2d3166a505c520cdfcDale Johannesen OS << '>'; 3185f72a5ebc84a1935878b5b2d3166a505c520cdfcDale Johannesen break; 31972aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner case MachineOperand::MO_MCSymbol: 32072aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner OS << "<MCSym=" << *getMCSymbol() << '>'; 32172aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner break; 322f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner default: 323c23197a26f34f559ea9797de51e187087c039c42Torok Edwin llvm_unreachable("Unrecognized operand type"); 324f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner } 325ee61d67c2f1105e23b2ea5110389f3b7b713b504Jim Grosbach 32631530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner if (unsigned TF = getTargetFlags()) 32731530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner OS << "[TF=" << TF << ']'; 328f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner} 329f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner 330f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner//===----------------------------------------------------------------------===// 331ce42e404a26454f4332c2c350c75ad27bbbb16f7Dan Gohman// MachineMemOperand Implementation 332ce42e404a26454f4332c2c350c75ad27bbbb16f7Dan Gohman//===----------------------------------------------------------------------===// 333ce42e404a26454f4332c2c350c75ad27bbbb16f7Dan Gohman 33440a858f6e71ed8d68779d00c63dad15baded3562Chris Lattner/// getAddrSpace - Return the LLVM IR address space number that this pointer 33540a858f6e71ed8d68779d00c63dad15baded3562Chris Lattner/// points into. 33640a858f6e71ed8d68779d00c63dad15baded3562Chris Lattnerunsigned MachinePointerInfo::getAddrSpace() const { 33740a858f6e71ed8d68779d00c63dad15baded3562Chris Lattner if (V == 0) return 0; 33840a858f6e71ed8d68779d00c63dad15baded3562Chris Lattner return cast<PointerType>(V->getType())->getAddressSpace(); 33940a858f6e71ed8d68779d00c63dad15baded3562Chris Lattner} 34040a858f6e71ed8d68779d00c63dad15baded3562Chris Lattner 341e8639036b1fb3a5b5e9589fe4e9f2ee1b77c36bdChris Lattner/// getConstantPool - Return a MachinePointerInfo record that refers to the 342e8639036b1fb3a5b5e9589fe4e9f2ee1b77c36bdChris Lattner/// constant pool. 343e8639036b1fb3a5b5e9589fe4e9f2ee1b77c36bdChris LattnerMachinePointerInfo MachinePointerInfo::getConstantPool() { 344e8639036b1fb3a5b5e9589fe4e9f2ee1b77c36bdChris Lattner return MachinePointerInfo(PseudoSourceValue::getConstantPool()); 345e8639036b1fb3a5b5e9589fe4e9f2ee1b77c36bdChris Lattner} 346e8639036b1fb3a5b5e9589fe4e9f2ee1b77c36bdChris Lattner 347e8639036b1fb3a5b5e9589fe4e9f2ee1b77c36bdChris Lattner/// getFixedStack - Return a MachinePointerInfo record that refers to the 348e8639036b1fb3a5b5e9589fe4e9f2ee1b77c36bdChris Lattner/// the specified FrameIndex. 349e8639036b1fb3a5b5e9589fe4e9f2ee1b77c36bdChris LattnerMachinePointerInfo MachinePointerInfo::getFixedStack(int FI, int64_t offset) { 350e8639036b1fb3a5b5e9589fe4e9f2ee1b77c36bdChris Lattner return MachinePointerInfo(PseudoSourceValue::getFixedStack(FI), offset); 351e8639036b1fb3a5b5e9589fe4e9f2ee1b77c36bdChris Lattner} 352e8639036b1fb3a5b5e9589fe4e9f2ee1b77c36bdChris Lattner 3531daa6f479dd5fb4123f1ffbb10a3825da7d2c6b8Chris LattnerMachinePointerInfo MachinePointerInfo::getJumpTable() { 3541daa6f479dd5fb4123f1ffbb10a3825da7d2c6b8Chris Lattner return MachinePointerInfo(PseudoSourceValue::getJumpTable()); 3551daa6f479dd5fb4123f1ffbb10a3825da7d2c6b8Chris Lattner} 3561daa6f479dd5fb4123f1ffbb10a3825da7d2c6b8Chris Lattner 3571daa6f479dd5fb4123f1ffbb10a3825da7d2c6b8Chris LattnerMachinePointerInfo MachinePointerInfo::getGOT() { 3581daa6f479dd5fb4123f1ffbb10a3825da7d2c6b8Chris Lattner return MachinePointerInfo(PseudoSourceValue::getGOT()); 3591daa6f479dd5fb4123f1ffbb10a3825da7d2c6b8Chris Lattner} 36040a858f6e71ed8d68779d00c63dad15baded3562Chris Lattner 361fc448ff89b4fb7721de9da0b96fd00c13160c4c7Chris LattnerMachinePointerInfo MachinePointerInfo::getStack(int64_t Offset) { 362fc448ff89b4fb7721de9da0b96fd00c13160c4c7Chris Lattner return MachinePointerInfo(PseudoSourceValue::getStack(), Offset); 363fc448ff89b4fb7721de9da0b96fd00c13160c4c7Chris Lattner} 364fc448ff89b4fb7721de9da0b96fd00c13160c4c7Chris Lattner 365da39c3964423744b4d79aebef8bece3e9141d5fcChris LattnerMachineMemOperand::MachineMemOperand(MachinePointerInfo ptrinfo, unsigned f, 366f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman uint64_t s, unsigned int a, 367f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman const MDNode *TBAAInfo) 368da39c3964423744b4d79aebef8bece3e9141d5fcChris Lattner : PtrInfo(ptrinfo), Size(s), 369f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman Flags((f & ((1 << MOMaxBits) - 1)) | ((Log2_32(a) + 1) << MOMaxBits)), 370f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman TBAAInfo(TBAAInfo) { 371da39c3964423744b4d79aebef8bece3e9141d5fcChris Lattner assert((PtrInfo.V == 0 || isa<PointerType>(PtrInfo.V->getType())) && 372da39c3964423744b4d79aebef8bece3e9141d5fcChris Lattner "invalid pointer value"); 37328f02fdd76f4efc05d14649e0eec90ce8e71e17eDan Gohman assert(getBaseAlignment() == a && "Alignment is not a power of 2!"); 374c5e1f98fdf44993c2bfe4c1ef633b2358cd718c1Dan Gohman assert((isLoad() || isStore()) && "Not a load/store!"); 375ce42e404a26454f4332c2c350c75ad27bbbb16f7Dan Gohman} 376ce42e404a26454f4332c2c350c75ad27bbbb16f7Dan Gohman 377b8d2f550b84523e8a73198f98e5d450ec3b4fee7Dan Gohman/// Profile - Gather unique data for the object. 378b8d2f550b84523e8a73198f98e5d450ec3b4fee7Dan Gohman/// 379b8d2f550b84523e8a73198f98e5d450ec3b4fee7Dan Gohmanvoid MachineMemOperand::Profile(FoldingSetNodeID &ID) const { 380e8e2e80f40495fdd5ad475beb54fcf0989b6b7c5Chris Lattner ID.AddInteger(getOffset()); 381b8d2f550b84523e8a73198f98e5d450ec3b4fee7Dan Gohman ID.AddInteger(Size); 382e8e2e80f40495fdd5ad475beb54fcf0989b6b7c5Chris Lattner ID.AddPointer(getValue()); 383b8d2f550b84523e8a73198f98e5d450ec3b4fee7Dan Gohman ID.AddInteger(Flags); 384b8d2f550b84523e8a73198f98e5d450ec3b4fee7Dan Gohman} 385b8d2f550b84523e8a73198f98e5d450ec3b4fee7Dan Gohman 386c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohmanvoid MachineMemOperand::refineAlignment(const MachineMemOperand *MMO) { 387c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman // The Value and Offset may differ due to CSE. But the flags and size 388c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman // should be the same. 389c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman assert(MMO->getFlags() == getFlags() && "Flags mismatch!"); 390c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman assert(MMO->getSize() == getSize() && "Size mismatch!"); 391c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman 392c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman if (MMO->getBaseAlignment() >= getBaseAlignment()) { 393c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman // Update the alignment value. 394ba2b297ca53cd685ba397177e9d2d8c239da971eDavid Greene Flags = (Flags & ((1 << MOMaxBits) - 1)) | 395ba2b297ca53cd685ba397177e9d2d8c239da971eDavid Greene ((Log2_32(MMO->getBaseAlignment()) + 1) << MOMaxBits); 396c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman // Also update the base and offset, because the new alignment may 397c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman // not be applicable with the old ones. 398e8e2e80f40495fdd5ad475beb54fcf0989b6b7c5Chris Lattner PtrInfo = MMO->PtrInfo; 399c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman } 400c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman} 401c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman 4024b2ebc19288491cb068f268c311d9fef0ec6a29fDan Gohman/// getAlignment - Return the minimum known alignment in bytes of the 4034b2ebc19288491cb068f268c311d9fef0ec6a29fDan Gohman/// actual memory reference. 4044b2ebc19288491cb068f268c311d9fef0ec6a29fDan Gohmanuint64_t MachineMemOperand::getAlignment() const { 4054b2ebc19288491cb068f268c311d9fef0ec6a29fDan Gohman return MinAlign(getBaseAlignment(), getOffset()); 4064b2ebc19288491cb068f268c311d9fef0ec6a29fDan Gohman} 4074b2ebc19288491cb068f268c311d9fef0ec6a29fDan Gohman 408c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohmanraw_ostream &llvm::operator<<(raw_ostream &OS, const MachineMemOperand &MMO) { 409c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman assert((MMO.isLoad() || MMO.isStore()) && 410cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman "SV has to be a load, store or both."); 411ee61d67c2f1105e23b2ea5110389f3b7b713b504Jim Grosbach 412c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman if (MMO.isVolatile()) 413cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman OS << "Volatile "; 414cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman 415c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman if (MMO.isLoad()) 416cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman OS << "LD"; 417c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman if (MMO.isStore()) 418cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman OS << "ST"; 419c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman OS << MMO.getSize(); 420ee61d67c2f1105e23b2ea5110389f3b7b713b504Jim Grosbach 421cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman // Print the address information. 422cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman OS << "["; 423c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman if (!MMO.getValue()) 424cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman OS << "<unknown>"; 425cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman else 426c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman WriteAsOperand(OS, MMO.getValue(), /*PrintType=*/false); 427cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman 428cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman // If the alignment of the memory reference itself differs from the alignment 429cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman // of the base pointer, print the base alignment explicitly, next to the base 430cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman // pointer. 431c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman if (MMO.getBaseAlignment() != MMO.getAlignment()) 432c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman OS << "(align=" << MMO.getBaseAlignment() << ")"; 433cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman 434c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman if (MMO.getOffset() != 0) 435c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman OS << "+" << MMO.getOffset(); 436cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman OS << "]"; 437cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman 438cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman // Print the alignment of the reference. 439c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman if (MMO.getBaseAlignment() != MMO.getAlignment() || 440c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman MMO.getBaseAlignment() != MMO.getSize()) 441c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman OS << "(align=" << MMO.getAlignment() << ")"; 442cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman 443f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman // Print TBAA info. 444f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman if (const MDNode *TBAAInfo = MMO.getTBAAInfo()) { 445f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman OS << "(tbaa="; 446f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman if (TBAAInfo->getNumOperands() > 0) 447f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman WriteAsOperand(OS, TBAAInfo->getOperand(0), /*PrintType=*/false); 448f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman else 449f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman OS << "<unknown>"; 450f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman OS << ")"; 451f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman } 452f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman 453d65ba721cccb0d0998750908bf2533e08b106f38Bill Wendling // Print nontemporal info. 454d65ba721cccb0d0998750908bf2533e08b106f38Bill Wendling if (MMO.isNonTemporal()) 455d65ba721cccb0d0998750908bf2533e08b106f38Bill Wendling OS << "(nontemporal)"; 456d65ba721cccb0d0998750908bf2533e08b106f38Bill Wendling 457cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman return OS; 458cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman} 459cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman 460ce42e404a26454f4332c2c350c75ad27bbbb16f7Dan Gohman//===----------------------------------------------------------------------===// 461f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner// MachineInstr Implementation 462f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner//===----------------------------------------------------------------------===// 463f73823000e2d5d6e1cf65bdf5a107297e18d35fbChris Lattner 464c0f64ffab93d11fb27a3b8a0707b77400918a20eEvan Cheng/// MachineInstr ctor - This constructor creates a dummy MachineInstr with 465e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng/// MCID NULL and no operands. 466c0f64ffab93d11fb27a3b8a0707b77400918a20eEvan ChengMachineInstr::MachineInstr() 467e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng : MCID(0), NumImplicitOps(0), Flags(0), AsmPrinterFlags(0), 4686dd97471c43805b3febf598d50498a09a02e93f4Anton Korobeynikov MemRefs(0), MemRefsEnd(0), 469a4f2bb08de92ccec21cbb3d0a9518384b0173660Chris Lattner Parent(0) { 4702c3f7ae3843bdc9dcfe85393e178211976c1f9bdDan Gohman // Make sure that we get added to a machine basicblock 4712c3f7ae3843bdc9dcfe85393e178211976c1f9bdDan Gohman LeakDetector::addGarbageObject(this); 4727279122e668816bed0d4f38d3392bbab0140fad0Chris Lattner} 4737279122e668816bed0d4f38d3392bbab0140fad0Chris Lattner 47467f660cb080965ea93ed6d7265a67100f2fe38e4Evan Chengvoid MachineInstr::addImplicitDefUseOperands() { 475e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng if (MCID->ImplicitDefs) 476e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng for (const unsigned *ImpDefs = MCID->ImplicitDefs; *ImpDefs; ++ImpDefs) 4778019f41c0b7fda031d494e3900eada7d4e494772Chris Lattner addOperand(MachineOperand::CreateReg(*ImpDefs, true, true)); 478e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng if (MCID->ImplicitUses) 479e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng for (const unsigned *ImpUses = MCID->ImplicitUses; *ImpUses; ++ImpUses) 4808019f41c0b7fda031d494e3900eada7d4e494772Chris Lattner addOperand(MachineOperand::CreateReg(*ImpUses, false, true)); 481d7de496b23fca8145f777a56281457bf64e8bbadEvan Cheng} 482d7de496b23fca8145f777a56281457bf64e8bbadEvan Cheng 4830855cadb00c598d4e78c8f1842a9c1b9bf19c667Bob Wilson/// MachineInstr ctor - This constructor creates a MachineInstr and adds the 4840855cadb00c598d4e78c8f1842a9c1b9bf19c667Bob Wilson/// implicit operands. It reserves space for the number of operands specified by 485e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng/// the MCInstrDesc. 486e837dead3c8dc3445ef6a0e2322179c57e264a13Evan ChengMachineInstr::MachineInstr(const MCInstrDesc &tid, bool NoImp) 487e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng : MCID(&tid), NumImplicitOps(0), Flags(0), AsmPrinterFlags(0), 488a4f2bb08de92ccec21cbb3d0a9518384b0173660Chris Lattner MemRefs(0), MemRefsEnd(0), Parent(0) { 4891793ab9e70c48146a5f1592b84b2b93e38c67fa4Bob Wilson if (!NoImp) 490e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng NumImplicitOps = MCID->getNumImplicitDefs() + MCID->getNumImplicitUses(); 491e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng Operands.reserve(NumImplicitOps + MCID->getNumOperands()); 492fa9457276a2174aaf302240dd32d89900ad021aeEvan Cheng if (!NoImp) 493fa9457276a2174aaf302240dd32d89900ad021aeEvan Cheng addImplicitDefUseOperands(); 4942c3f7ae3843bdc9dcfe85393e178211976c1f9bdDan Gohman // Make sure that we get added to a machine basicblock 4952c3f7ae3843bdc9dcfe85393e178211976c1f9bdDan Gohman LeakDetector::addGarbageObject(this); 496d7de496b23fca8145f777a56281457bf64e8bbadEvan Cheng} 497d7de496b23fca8145f777a56281457bf64e8bbadEvan Cheng 49806efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen/// MachineInstr ctor - As above, but with a DebugLoc. 499e837dead3c8dc3445ef6a0e2322179c57e264a13Evan ChengMachineInstr::MachineInstr(const MCInstrDesc &tid, const DebugLoc dl, 50006efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen bool NoImp) 501e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng : MCID(&tid), NumImplicitOps(0), Flags(0), AsmPrinterFlags(0), 5026dd97471c43805b3febf598d50498a09a02e93f4Anton Korobeynikov MemRefs(0), MemRefsEnd(0), Parent(0), debugLoc(dl) { 5031793ab9e70c48146a5f1592b84b2b93e38c67fa4Bob Wilson if (!NoImp) 504e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng NumImplicitOps = MCID->getNumImplicitDefs() + MCID->getNumImplicitUses(); 505e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng Operands.reserve(NumImplicitOps + MCID->getNumOperands()); 50606efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen if (!NoImp) 50706efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen addImplicitDefUseOperands(); 50806efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen // Make sure that we get added to a machine basicblock 50906efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen LeakDetector::addGarbageObject(this); 51006efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen} 51106efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen 51206efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen/// MachineInstr ctor - Work exactly the same as the ctor two above, except 513ee61d67c2f1105e23b2ea5110389f3b7b713b504Jim Grosbach/// that the MachineInstr is created and added to the end of the specified 51406efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen/// basic block. 515e837dead3c8dc3445ef6a0e2322179c57e264a13Evan ChengMachineInstr::MachineInstr(MachineBasicBlock *MBB, const MCInstrDesc &tid) 516e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng : MCID(&tid), NumImplicitOps(0), Flags(0), AsmPrinterFlags(0), 517a4f2bb08de92ccec21cbb3d0a9518384b0173660Chris Lattner MemRefs(0), MemRefsEnd(0), Parent(0) { 51806efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen assert(MBB && "Cannot use inserting ctor with null basic block!"); 519e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng NumImplicitOps = MCID->getNumImplicitDefs() + MCID->getNumImplicitUses(); 520e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng Operands.reserve(NumImplicitOps + MCID->getNumOperands()); 52106efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen addImplicitDefUseOperands(); 52206efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen // Make sure that we get added to a machine basicblock 52306efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen LeakDetector::addGarbageObject(this); 52406efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen MBB->push_back(this); // Add instruction to end of basic block! 52506efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen} 52606efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen 52706efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen/// MachineInstr ctor - As above, but with a DebugLoc. 528ddd7fcb887be752ec8167276a697994ad9cb9c4eChris Lattner/// 52906efc02854a96a9f92edc3bf46b0451f488cf2e6Dale JohannesenMachineInstr::MachineInstr(MachineBasicBlock *MBB, const DebugLoc dl, 530e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng const MCInstrDesc &tid) 531e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng : MCID(&tid), NumImplicitOps(0), Flags(0), AsmPrinterFlags(0), 5326dd97471c43805b3febf598d50498a09a02e93f4Anton Korobeynikov MemRefs(0), MemRefsEnd(0), Parent(0), debugLoc(dl) { 533ddd7fcb887be752ec8167276a697994ad9cb9c4eChris Lattner assert(MBB && "Cannot use inserting ctor with null basic block!"); 534e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng NumImplicitOps = MCID->getNumImplicitDefs() + MCID->getNumImplicitUses(); 535e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng Operands.reserve(NumImplicitOps + MCID->getNumOperands()); 53667f660cb080965ea93ed6d7265a67100f2fe38e4Evan Cheng addImplicitDefUseOperands(); 5372c3f7ae3843bdc9dcfe85393e178211976c1f9bdDan Gohman // Make sure that we get added to a machine basicblock 5382c3f7ae3843bdc9dcfe85393e178211976c1f9bdDan Gohman LeakDetector::addGarbageObject(this); 539ddd7fcb887be752ec8167276a697994ad9cb9c4eChris Lattner MBB->push_back(this); // Add instruction to end of basic block! 540ddd7fcb887be752ec8167276a697994ad9cb9c4eChris Lattner} 541ddd7fcb887be752ec8167276a697994ad9cb9c4eChris Lattner 542ce22e76996d3ff0930716fa60c29df60a7e0481bMisha Brukman/// MachineInstr ctor - Copies MachineInstr arg exactly 543ce22e76996d3ff0930716fa60c29df60a7e0481bMisha Brukman/// 5441ed9922794cda9dbe295e74674b909287e544632Evan ChengMachineInstr::MachineInstr(MachineFunction &MF, const MachineInstr &MI) 545e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng : MCID(&MI.getDesc()), NumImplicitOps(0), Flags(0), AsmPrinterFlags(0), 546c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman MemRefs(MI.MemRefs), MemRefsEnd(MI.MemRefsEnd), 547c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman Parent(0), debugLoc(MI.getDebugLoc()) { 548943b5e117fe9a087f9aa529a2632c2d32cc22374Chris Lattner Operands.reserve(MI.getNumOperands()); 549b5159ed0cb7943e5938782f7693beb18342165ceTanya Lattner 550ce22e76996d3ff0930716fa60c29df60a7e0481bMisha Brukman // Add operands 5511ed9922794cda9dbe295e74674b909287e544632Evan Cheng for (unsigned i = 0; i != MI.getNumOperands(); ++i) 5521ed9922794cda9dbe295e74674b909287e544632Evan Cheng addOperand(MI.getOperand(i)); 5531ed9922794cda9dbe295e74674b909287e544632Evan Cheng NumImplicitOps = MI.NumImplicitOps; 5540c63e03e04d3982e1913479bba404c3debc9a27eTanya Lattner 5556dd97471c43805b3febf598d50498a09a02e93f4Anton Korobeynikov // Copy all the flags. 5566dd97471c43805b3febf598d50498a09a02e93f4Anton Korobeynikov Flags = MI.Flags; 5576dd97471c43805b3febf598d50498a09a02e93f4Anton Korobeynikov 5588e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman // Set parent to null. 559f20c1a497fe3922ac718429d65a5fe396890575eChris Lattner Parent = 0; 5606116a73da420d9b414a34ce2599dc7f6476e23fcDan Gohman 5616116a73da420d9b414a34ce2599dc7f6476e23fcDan Gohman LeakDetector::addGarbageObject(this); 562466b534a570f574ed485d875bbca8454f68dcb52Tanya Lattner} 563466b534a570f574ed485d875bbca8454f68dcb52Tanya Lattner 564ce22e76996d3ff0930716fa60c29df60a7e0481bMisha BrukmanMachineInstr::~MachineInstr() { 5652c3f7ae3843bdc9dcfe85393e178211976c1f9bdDan Gohman LeakDetector::removeGarbageObject(this); 566e12d6abfdfc5141b2001f0c369a0e1525315b9c0Chris Lattner#ifndef NDEBUG 56762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner for (unsigned i = 0, e = Operands.size(); i != e; ++i) { 568e12d6abfdfc5141b2001f0c369a0e1525315b9c0Chris Lattner assert(Operands[i].ParentMI == this && "ParentMI mismatch!"); 569d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman assert((!Operands[i].isReg() || !Operands[i].isOnRegUseList()) && 57062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner "Reg operand def/use list corrupted"); 57162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 572e12d6abfdfc5141b2001f0c369a0e1525315b9c0Chris Lattner#endif 573aad5c0505183a5b7913f1a443a1f0650122551ccAlkis Evlogimenos} 574aad5c0505183a5b7913f1a443a1f0650122551ccAlkis Evlogimenos 57562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// getRegInfo - If this instruction is embedded into a MachineFunction, 57662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// return the MachineRegisterInfo object for the current function, otherwise 57762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// return null. 57862ed6b9ade63bf01717ce5274fa11e93e873d245Chris LattnerMachineRegisterInfo *MachineInstr::getRegInfo() { 57962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (MachineBasicBlock *MBB = getParent()) 5804e526b9a5b36d9bac170c03df0a5d6fb76740ae2Dan Gohman return &MBB->getParent()->getRegInfo(); 58162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner return 0; 58262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner} 58362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 58462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// RemoveRegOperandsFromUseLists - Unlink all of the register operands in 58562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// this instruction from their respective use lists. This requires that the 58662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// operands already be on their use lists. 58762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattnervoid MachineInstr::RemoveRegOperandsFromUseLists() { 58862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner for (unsigned i = 0, e = Operands.size(); i != e; ++i) { 589d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (Operands[i].isReg()) 59062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands[i].RemoveRegOperandFromRegInfo(); 59162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 59262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner} 59362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 59462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// AddRegOperandsToUseLists - Add all of the register operands in 59562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// this instruction from their respective use lists. This requires that the 59662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// operands not be on their use lists yet. 59762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattnervoid MachineInstr::AddRegOperandsToUseLists(MachineRegisterInfo &RegInfo) { 59862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner for (unsigned i = 0, e = Operands.size(); i != e; ++i) { 599d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (Operands[i].isReg()) 60062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands[i].AddRegOperandToRegInfo(&RegInfo); 60162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 60262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner} 60362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 60462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 60562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// addOperand - Add the specified operand to the instruction. If it is an 60662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// implicit operand, it is added to the end of the operand list. If it is 60762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// an explicit operand it is added at the end of the explicit operand list 608ee61d67c2f1105e23b2ea5110389f3b7b713b504Jim Grosbach/// (before the first implicit operand). 60962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattnervoid MachineInstr::addOperand(const MachineOperand &Op) { 610d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman bool isImpReg = Op.isReg() && Op.isImplicit(); 61162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner assert((isImpReg || !OperandsComplete()) && 61262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner "Trying to add an operand to a machine instr that is already done!"); 61362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 614bcf28c08b3f0a3c4aa1be8f1485f6452d9a2b690Dan Gohman MachineRegisterInfo *RegInfo = getRegInfo(); 615bcf28c08b3f0a3c4aa1be8f1485f6452d9a2b690Dan Gohman 61662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // If we are adding the operand to the end of the list, our job is simpler. 61762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // This is true most of the time, so this is a reasonable optimization. 61862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (isImpReg || NumImplicitOps == 0) { 61962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // We can only do this optimization if we know that the operand list won't 62062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // reallocate. 62162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (Operands.empty() || Operands.size()+1 <= Operands.capacity()) { 62262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands.push_back(Op); 623ee61d67c2f1105e23b2ea5110389f3b7b713b504Jim Grosbach 62462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Set the parent of the operand. 62562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands.back().ParentMI = this; 626ee61d67c2f1105e23b2ea5110389f3b7b713b504Jim Grosbach 62762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // If the operand is a register, update the operand's use list. 62806801722a43c697eff0acee905de6b50257ce19bJim Grosbach if (Op.isReg()) { 629bcf28c08b3f0a3c4aa1be8f1485f6452d9a2b690Dan Gohman Operands.back().AddRegOperandToRegInfo(RegInfo); 63006801722a43c697eff0acee905de6b50257ce19bJim Grosbach // If the register operand is flagged as early, mark the operand as such 63106801722a43c697eff0acee905de6b50257ce19bJim Grosbach unsigned OpNo = Operands.size() - 1; 632e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng if (MCID->getOperandConstraint(OpNo, MCOI::EARLY_CLOBBER) != -1) 63306801722a43c697eff0acee905de6b50257ce19bJim Grosbach Operands[OpNo].setIsEarlyClobber(true); 63406801722a43c697eff0acee905de6b50257ce19bJim Grosbach } 63562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner return; 63662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 63762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 638ee61d67c2f1105e23b2ea5110389f3b7b713b504Jim Grosbach 63962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Otherwise, we have to insert a real operand before any implicit ones. 64062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner unsigned OpNo = Operands.size()-NumImplicitOps; 64162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 64262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // If this instruction isn't embedded into a function, then we don't need to 64362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // update any operand lists. 64462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (RegInfo == 0) { 64562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Simple insertion, no reginfo update needed for other register operands. 64662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands.insert(Operands.begin()+OpNo, Op); 64762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands[OpNo].ParentMI = this; 64862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 64962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Do explicitly set the reginfo for this operand though, to ensure the 65062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // next/prev fields are properly nulled out. 65106801722a43c697eff0acee905de6b50257ce19bJim Grosbach if (Operands[OpNo].isReg()) { 65262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands[OpNo].AddRegOperandToRegInfo(0); 65306801722a43c697eff0acee905de6b50257ce19bJim Grosbach // If the register operand is flagged as early, mark the operand as such 654e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng if (MCID->getOperandConstraint(OpNo, MCOI::EARLY_CLOBBER) != -1) 65506801722a43c697eff0acee905de6b50257ce19bJim Grosbach Operands[OpNo].setIsEarlyClobber(true); 65606801722a43c697eff0acee905de6b50257ce19bJim Grosbach } 65762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 65862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } else if (Operands.size()+1 <= Operands.capacity()) { 65962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Otherwise, we have to remove register operands from their register use 66062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // list, add the operand, then add the register operands back to their use 66162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // list. This also must handle the case when the operand list reallocates 66262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // to somewhere else. 663ee61d67c2f1105e23b2ea5110389f3b7b713b504Jim Grosbach 66462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // If insertion of this operand won't cause reallocation of the operand 66562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // list, just remove the implicit operands, add the operand, then re-add all 66662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // the rest of the operands. 66762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner for (unsigned i = OpNo, e = Operands.size(); i != e; ++i) { 668d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman assert(Operands[i].isReg() && "Should only be an implicit reg!"); 66962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands[i].RemoveRegOperandFromRegInfo(); 67062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 671ee61d67c2f1105e23b2ea5110389f3b7b713b504Jim Grosbach 67262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Add the operand. If it is a register, add it to the reg list. 67362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands.insert(Operands.begin()+OpNo, Op); 67462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands[OpNo].ParentMI = this; 67562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 67606801722a43c697eff0acee905de6b50257ce19bJim Grosbach if (Operands[OpNo].isReg()) { 67762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands[OpNo].AddRegOperandToRegInfo(RegInfo); 67806801722a43c697eff0acee905de6b50257ce19bJim Grosbach // If the register operand is flagged as early, mark the operand as such 679e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng if (MCID->getOperandConstraint(OpNo, MCOI::EARLY_CLOBBER) != -1) 68006801722a43c697eff0acee905de6b50257ce19bJim Grosbach Operands[OpNo].setIsEarlyClobber(true); 68106801722a43c697eff0acee905de6b50257ce19bJim Grosbach } 682ee61d67c2f1105e23b2ea5110389f3b7b713b504Jim Grosbach 68362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Re-add all the implicit ops. 68462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner for (unsigned i = OpNo+1, e = Operands.size(); i != e; ++i) { 685d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman assert(Operands[i].isReg() && "Should only be an implicit reg!"); 68662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands[i].AddRegOperandToRegInfo(RegInfo); 68762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 68862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } else { 68962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Otherwise, we will be reallocating the operand list. Remove all reg 69062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // operands from their list, then readd them after the operand list is 69162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // reallocated. 69262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner RemoveRegOperandsFromUseLists(); 693ee61d67c2f1105e23b2ea5110389f3b7b713b504Jim Grosbach 69462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands.insert(Operands.begin()+OpNo, Op); 69562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands[OpNo].ParentMI = this; 696ee61d67c2f1105e23b2ea5110389f3b7b713b504Jim Grosbach 69762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Re-add all the operands. 69862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner AddRegOperandsToUseLists(*RegInfo); 69906801722a43c697eff0acee905de6b50257ce19bJim Grosbach 70006801722a43c697eff0acee905de6b50257ce19bJim Grosbach // If the register operand is flagged as early, mark the operand as such 70106801722a43c697eff0acee905de6b50257ce19bJim Grosbach if (Operands[OpNo].isReg() 702e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng && MCID->getOperandConstraint(OpNo, MCOI::EARLY_CLOBBER) != -1) 70306801722a43c697eff0acee905de6b50257ce19bJim Grosbach Operands[OpNo].setIsEarlyClobber(true); 70462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 70562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner} 70662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 70762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// RemoveOperand - Erase an operand from an instruction, leaving it with one 70862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// fewer operand than it started with. 70962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// 71062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattnervoid MachineInstr::RemoveOperand(unsigned OpNo) { 71162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner assert(OpNo < Operands.size() && "Invalid operand number"); 712ee61d67c2f1105e23b2ea5110389f3b7b713b504Jim Grosbach 71362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Special case removing the last one. 71462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (OpNo == Operands.size()-1) { 71562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // If needed, remove from the reg def/use list. 716d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (Operands.back().isReg() && Operands.back().isOnRegUseList()) 71762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands.back().RemoveRegOperandFromRegInfo(); 718ee61d67c2f1105e23b2ea5110389f3b7b713b504Jim Grosbach 71962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands.pop_back(); 72062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner return; 72162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 72262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 72362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Otherwise, we are removing an interior operand. If we have reginfo to 72462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // update, remove all operands that will be shifted down from their reg lists, 72562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // move everything down, then re-add them. 72662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner MachineRegisterInfo *RegInfo = getRegInfo(); 72762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (RegInfo) { 72862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner for (unsigned i = OpNo, e = Operands.size(); i != e; ++i) { 729d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (Operands[i].isReg()) 73062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands[i].RemoveRegOperandFromRegInfo(); 73162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 73262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 733ee61d67c2f1105e23b2ea5110389f3b7b713b504Jim Grosbach 73462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands.erase(Operands.begin()+OpNo); 73562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 73662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (RegInfo) { 73762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner for (unsigned i = OpNo, e = Operands.size(); i != e; ++i) { 738d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (Operands[i].isReg()) 73962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands[i].AddRegOperandToRegInfo(RegInfo); 74062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 74162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 74262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner} 74362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 744c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman/// addMemOperand - Add a MachineMemOperand to the machine instruction. 745c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman/// This function should be used only occasionally. The setMemRefs function 746c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman/// is the primary method for setting up a MachineInstr's MemRefs list. 7478e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohmanvoid MachineInstr::addMemOperand(MachineFunction &MF, 748c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman MachineMemOperand *MO) { 749c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman mmo_iterator OldMemRefs = MemRefs; 750c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman mmo_iterator OldMemRefsEnd = MemRefsEnd; 7518e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman 752c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman size_t NewNum = (MemRefsEnd - MemRefs) + 1; 753c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman mmo_iterator NewMemRefs = MF.allocateMemRefsArray(NewNum); 754c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman mmo_iterator NewMemRefsEnd = NewMemRefs + NewNum; 7558e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman 756c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman std::copy(OldMemRefs, OldMemRefsEnd, NewMemRefs); 757c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman NewMemRefs[NewNum - 1] = MO; 758c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman 759c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman MemRefs = NewMemRefs; 760c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman MemRefsEnd = NewMemRefsEnd; 761c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman} 76262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 763506049f29f4f202a8e45feb916cc0264440a7f6dEvan Chengbool MachineInstr::isIdenticalTo(const MachineInstr *Other, 764506049f29f4f202a8e45feb916cc0264440a7f6dEvan Cheng MICheckType Check) const { 76534cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng // If opcodes or number of operands are not the same then the two 76634cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng // instructions are obviously not identical. 76734cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng if (Other->getOpcode() != getOpcode() || 76834cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng Other->getNumOperands() != getNumOperands()) 76934cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng return false; 77034cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng 77134cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng // Check operands to make sure they match. 77234cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 77334cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng const MachineOperand &MO = getOperand(i); 77434cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng const MachineOperand &OMO = Other->getOperand(i); 775cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng if (!MO.isReg()) { 776cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng if (!MO.isIdenticalTo(OMO)) 777cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng return false; 778cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng continue; 779cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng } 780cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng 78134cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng // Clients may or may not want to ignore defs when testing for equality. 78234cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng // For example, machine CSE pass only cares about finding common 78334cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng // subexpressions, so it's safe to ignore virtual register defs. 784cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng if (MO.isDef()) { 78534cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng if (Check == IgnoreDefs) 78634cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng continue; 787cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng else if (Check == IgnoreVRegDefs) { 788cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng if (TargetRegisterInfo::isPhysicalRegister(MO.getReg()) || 789cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng TargetRegisterInfo::isPhysicalRegister(OMO.getReg())) 790cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng if (MO.getReg() != OMO.getReg()) 791cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng return false; 792cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng } else { 793cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng if (!MO.isIdenticalTo(OMO)) 794cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng return false; 795cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng if (Check == CheckKillDead && MO.isDead() != OMO.isDead()) 79634cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng return false; 797cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng } 798cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng } else { 799cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng if (!MO.isIdenticalTo(OMO)) 800cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng return false; 801cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng if (Check == CheckKillDead && MO.isKill() != OMO.isKill()) 802cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng return false; 803cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng } 80434cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng } 8059194c6716be13e2b8d2cf8e45273bf6c79f8b32cDevang Patel // If DebugLoc does not match then two dbg.values are not identical. 8069194c6716be13e2b8d2cf8e45273bf6c79f8b32cDevang Patel if (isDebugValue()) 8079194c6716be13e2b8d2cf8e45273bf6c79f8b32cDevang Patel if (!getDebugLoc().isUnknown() && !Other->getDebugLoc().isUnknown() 8089194c6716be13e2b8d2cf8e45273bf6c79f8b32cDevang Patel && getDebugLoc() != Other->getDebugLoc()) 8099194c6716be13e2b8d2cf8e45273bf6c79f8b32cDevang Patel return false; 81034cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng return true; 811506049f29f4f202a8e45feb916cc0264440a7f6dEvan Cheng} 812506049f29f4f202a8e45feb916cc0264440a7f6dEvan Cheng 81348d7c069c76882475c23de153bda9483cd3c9bb4Chris Lattner/// removeFromParent - This method unlinks 'this' from the containing basic 81448d7c069c76882475c23de153bda9483cd3c9bb4Chris Lattner/// block, and returns it, but does not delete it. 81548d7c069c76882475c23de153bda9483cd3c9bb4Chris LattnerMachineInstr *MachineInstr::removeFromParent() { 81648d7c069c76882475c23de153bda9483cd3c9bb4Chris Lattner assert(getParent() && "Not embedded in a basic block!"); 81748d7c069c76882475c23de153bda9483cd3c9bb4Chris Lattner getParent()->remove(this); 81848d7c069c76882475c23de153bda9483cd3c9bb4Chris Lattner return this; 81948d7c069c76882475c23de153bda9483cd3c9bb4Chris Lattner} 82048d7c069c76882475c23de153bda9483cd3c9bb4Chris Lattner 82148d7c069c76882475c23de153bda9483cd3c9bb4Chris Lattner 8228e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman/// eraseFromParent - This method unlinks 'this' from the containing basic 8238e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman/// block, and deletes it. 8248e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohmanvoid MachineInstr::eraseFromParent() { 8258e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman assert(getParent() && "Not embedded in a basic block!"); 8268e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman getParent()->erase(this); 8278e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman} 8288e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman 8298e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman 83021326fc2ad47ee7e73a8c0b03a4a0cc0b0a0c4e8Brian Gaeke/// OperandComplete - Return true if it's illegal to add a new operand 83121326fc2ad47ee7e73a8c0b03a4a0cc0b0a0c4e8Brian Gaeke/// 8322a90ba60175f93e7438165d8423100aa573c16c5Chris Lattnerbool MachineInstr::OperandsComplete() const { 833e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng unsigned short NumOperands = MCID->getNumOperands(); 834e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng if (!MCID->isVariadic() && getNumOperands()-NumImplicitOps >= NumOperands) 8353497782f3843007de3be0c43e3ff206a01e2ccacVikram S. Adve return true; // Broken: we have all the operands of this instruction! 836413746e9833d97a8b463ef6a788aa326cf3829a2Chris Lattner return false; 83770bc4b5d1a3795a8f41be96723cfcbccac8e1671Vikram S. Adve} 83870bc4b5d1a3795a8f41be96723cfcbccac8e1671Vikram S. Adve 83919e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng/// getNumExplicitOperands - Returns the number of non-implicit operands. 84019e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng/// 84119e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Chengunsigned MachineInstr::getNumExplicitOperands() const { 842e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng unsigned NumOperands = MCID->getNumOperands(); 843e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng if (!MCID->isVariadic()) 84419e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng return NumOperands; 84519e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng 8469407cd4ede3e2c090b958778d0fdbdac8b2dbec4Dan Gohman for (unsigned i = NumOperands, e = getNumOperands(); i != e; ++i) { 8479407cd4ede3e2c090b958778d0fdbdac8b2dbec4Dan Gohman const MachineOperand &MO = getOperand(i); 848d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (!MO.isReg() || !MO.isImplicit()) 84919e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng NumOperands++; 85019e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng } 85119e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng return NumOperands; 85219e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng} 85319e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng 854c36b7069b42bece963b7e6adf020353ce990ef76Evan Chengbool MachineInstr::isStackAligningInlineAsm() const { 855c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng if (isInlineAsm()) { 856c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng unsigned ExtraInfo = getOperand(InlineAsm::MIOp_ExtraInfo).getImm(); 857c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng if (ExtraInfo & InlineAsm::Extra_IsAlignStack) 858c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng return true; 859c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng } 860c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng return false; 861c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng} 8628ace2cd034be10c09be51daf08c3dda327f54262Chris Lattner 863faa510726f4b40aa4495e60e4d341c6467e3fb01Evan Cheng/// findRegisterUseOperandIdx() - Returns the MachineOperand that is a use of 864f9ca50e3dce88b2f9e2f2f0cac2d3ed78afda841Jim Grosbach/// the specific register or -1 if it is not found. It further tightens 86576d7e76c15c258ec4a71fd75a2a32bca3a5e5e27Evan Cheng/// the search criteria to a use that kills the register if isKill is true. 8666130f66eaae89f8878590796977678afa8448926Evan Chengint MachineInstr::findRegisterUseOperandIdx(unsigned Reg, bool isKill, 8676130f66eaae89f8878590796977678afa8448926Evan Cheng const TargetRegisterInfo *TRI) const { 868576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 869f277ee4be7edabb759a7f78138b693d72d0c263fEvan Cheng const MachineOperand &MO = getOperand(i); 870d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (!MO.isReg() || !MO.isUse()) 8716130f66eaae89f8878590796977678afa8448926Evan Cheng continue; 8726130f66eaae89f8878590796977678afa8448926Evan Cheng unsigned MOReg = MO.getReg(); 8736130f66eaae89f8878590796977678afa8448926Evan Cheng if (!MOReg) 8746130f66eaae89f8878590796977678afa8448926Evan Cheng continue; 8756130f66eaae89f8878590796977678afa8448926Evan Cheng if (MOReg == Reg || 8766130f66eaae89f8878590796977678afa8448926Evan Cheng (TRI && 8776130f66eaae89f8878590796977678afa8448926Evan Cheng TargetRegisterInfo::isPhysicalRegister(MOReg) && 8786130f66eaae89f8878590796977678afa8448926Evan Cheng TargetRegisterInfo::isPhysicalRegister(Reg) && 8796130f66eaae89f8878590796977678afa8448926Evan Cheng TRI->isSubRegister(MOReg, Reg))) 88076d7e76c15c258ec4a71fd75a2a32bca3a5e5e27Evan Cheng if (!isKill || MO.isKill()) 88132eb1f1ca4220d2f24916e587ad7e8574d7d82a1Evan Cheng return i; 882b371f457b0ea4a652a9f526ba4375c80ae542252Evan Cheng } 88332eb1f1ca4220d2f24916e587ad7e8574d7d82a1Evan Cheng return -1; 884b371f457b0ea4a652a9f526ba4375c80ae542252Evan Cheng} 8857ebc4d63db05ac214d36bc01b4d60adadaf923e5Jakob Stoklund Olesen 88618b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesen/// readsWritesVirtualRegister - Return a pair of bools (reads, writes) 88718b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesen/// indicating if this instruction reads or writes Reg. This also considers 88818b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesen/// partial defines. 88918b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesenstd::pair<bool,bool> 89018b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund OlesenMachineInstr::readsWritesVirtualRegister(unsigned Reg, 89118b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesen SmallVectorImpl<unsigned> *Ops) const { 89218b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesen bool PartDef = false; // Partial redefine. 89318b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesen bool FullDef = false; // Full define. 89418b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesen bool Use = false; 8957ebc4d63db05ac214d36bc01b4d60adadaf923e5Jakob Stoklund Olesen 8967ebc4d63db05ac214d36bc01b4d60adadaf923e5Jakob Stoklund Olesen for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 8977ebc4d63db05ac214d36bc01b4d60adadaf923e5Jakob Stoklund Olesen const MachineOperand &MO = getOperand(i); 8987ebc4d63db05ac214d36bc01b4d60adadaf923e5Jakob Stoklund Olesen if (!MO.isReg() || MO.getReg() != Reg) 8997ebc4d63db05ac214d36bc01b4d60adadaf923e5Jakob Stoklund Olesen continue; 90018b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesen if (Ops) 90118b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesen Ops->push_back(i); 9027ebc4d63db05ac214d36bc01b4d60adadaf923e5Jakob Stoklund Olesen if (MO.isUse()) 90318b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesen Use |= !MO.isUndef(); 904201f2463a72f88121a3a31e7386029e99d2d75daJakob Stoklund Olesen else if (MO.getSubReg() && !MO.isUndef()) 905201f2463a72f88121a3a31e7386029e99d2d75daJakob Stoklund Olesen // A partial <def,undef> doesn't count as reading the register. 9067ebc4d63db05ac214d36bc01b4d60adadaf923e5Jakob Stoklund Olesen PartDef = true; 9077ebc4d63db05ac214d36bc01b4d60adadaf923e5Jakob Stoklund Olesen else 9087ebc4d63db05ac214d36bc01b4d60adadaf923e5Jakob Stoklund Olesen FullDef = true; 9097ebc4d63db05ac214d36bc01b4d60adadaf923e5Jakob Stoklund Olesen } 91018b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesen // A partial redefine uses Reg unless there is also a full define. 91118b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesen return std::make_pair(Use || (PartDef && !FullDef), PartDef || FullDef); 9127ebc4d63db05ac214d36bc01b4d60adadaf923e5Jakob Stoklund Olesen} 9137ebc4d63db05ac214d36bc01b4d60adadaf923e5Jakob Stoklund Olesen 9146130f66eaae89f8878590796977678afa8448926Evan Cheng/// findRegisterDefOperandIdx() - Returns the operand index that is a def of 915703bfe69092e8da79fbef2fc5ca07b805ad9f753Dan Gohman/// the specified register or -1 if it is not found. If isDead is true, defs 916703bfe69092e8da79fbef2fc5ca07b805ad9f753Dan Gohman/// that are not dead are skipped. If TargetRegisterInfo is non-null, then it 917703bfe69092e8da79fbef2fc5ca07b805ad9f753Dan Gohman/// also checks if there is a def of a super-register. 9181015ba7018c87f48cc7bb45a564eb4a27241e76aEvan Chengint 9191015ba7018c87f48cc7bb45a564eb4a27241e76aEvan ChengMachineInstr::findRegisterDefOperandIdx(unsigned Reg, bool isDead, bool Overlap, 9201015ba7018c87f48cc7bb45a564eb4a27241e76aEvan Cheng const TargetRegisterInfo *TRI) const { 9211015ba7018c87f48cc7bb45a564eb4a27241e76aEvan Cheng bool isPhys = TargetRegisterInfo::isPhysicalRegister(Reg); 922b371f457b0ea4a652a9f526ba4375c80ae542252Evan Cheng for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 9236130f66eaae89f8878590796977678afa8448926Evan Cheng const MachineOperand &MO = getOperand(i); 924d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (!MO.isReg() || !MO.isDef()) 9256130f66eaae89f8878590796977678afa8448926Evan Cheng continue; 9266130f66eaae89f8878590796977678afa8448926Evan Cheng unsigned MOReg = MO.getReg(); 9271015ba7018c87f48cc7bb45a564eb4a27241e76aEvan Cheng bool Found = (MOReg == Reg); 9281015ba7018c87f48cc7bb45a564eb4a27241e76aEvan Cheng if (!Found && TRI && isPhys && 9291015ba7018c87f48cc7bb45a564eb4a27241e76aEvan Cheng TargetRegisterInfo::isPhysicalRegister(MOReg)) { 9301015ba7018c87f48cc7bb45a564eb4a27241e76aEvan Cheng if (Overlap) 9311015ba7018c87f48cc7bb45a564eb4a27241e76aEvan Cheng Found = TRI->regsOverlap(MOReg, Reg); 9321015ba7018c87f48cc7bb45a564eb4a27241e76aEvan Cheng else 9331015ba7018c87f48cc7bb45a564eb4a27241e76aEvan Cheng Found = TRI->isSubRegister(MOReg, Reg); 9341015ba7018c87f48cc7bb45a564eb4a27241e76aEvan Cheng } 9351015ba7018c87f48cc7bb45a564eb4a27241e76aEvan Cheng if (Found && (!isDead || MO.isDead())) 9361015ba7018c87f48cc7bb45a564eb4a27241e76aEvan Cheng return i; 937576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng } 9386130f66eaae89f8878590796977678afa8448926Evan Cheng return -1; 939576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng} 94019e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng 941f277ee4be7edabb759a7f78138b693d72d0c263fEvan Cheng/// findFirstPredOperandIdx() - Find the index of the first operand in the 942f277ee4be7edabb759a7f78138b693d72d0c263fEvan Cheng/// operand list that is used to represent the predicate. It returns -1 if 943f277ee4be7edabb759a7f78138b693d72d0c263fEvan Cheng/// none is found. 944f277ee4be7edabb759a7f78138b693d72d0c263fEvan Chengint MachineInstr::findFirstPredOperandIdx() const { 945f8e1e3e729473b8b2b7ee6134b6417976af84d05Jim Grosbach // Don't call MCID.findFirstPredOperandIdx() because this variant 946f8e1e3e729473b8b2b7ee6134b6417976af84d05Jim Grosbach // is sometimes called on an instruction that's not yet complete, and 947f8e1e3e729473b8b2b7ee6134b6417976af84d05Jim Grosbach // so the number of operands is less than the MCID indicates. In 948f8e1e3e729473b8b2b7ee6134b6417976af84d05Jim Grosbach // particular, the PTX target does this. 949e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng const MCInstrDesc &MCID = getDesc(); 950e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng if (MCID.isPredicable()) { 95119e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng for (unsigned i = 0, e = getNumOperands(); i != e; ++i) 952e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng if (MCID.OpInfo[i].isPredicate()) 953f277ee4be7edabb759a7f78138b693d72d0c263fEvan Cheng return i; 95419e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng } 95519e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng 956f277ee4be7edabb759a7f78138b693d72d0c263fEvan Cheng return -1; 95719e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng} 958ee61d67c2f1105e23b2ea5110389f3b7b713b504Jim Grosbach 959d9df5017040489303acb57bdd8697ef0f8bafc08Bob Wilson/// isRegTiedToUseOperand - Given the index of a register def operand, 960d9df5017040489303acb57bdd8697ef0f8bafc08Bob Wilson/// check if the register def is tied to a source operand, due to either 961d9df5017040489303acb57bdd8697ef0f8bafc08Bob Wilson/// two-address elimination or inline assembly constraints. Returns the 962d9df5017040489303acb57bdd8697ef0f8bafc08Bob Wilson/// first tied use operand index by reference is UseOpIdx is not null. 963ce9be2cf5dc84865f6b819bd3f9be16944426268Jakob Stoklund Olesenbool MachineInstr:: 964ce9be2cf5dc84865f6b819bd3f9be16944426268Jakob Stoklund OlesenisRegTiedToUseOperand(unsigned DefOpIdx, unsigned *UseOpIdx) const { 965518bb53485df640d7b7e3f6b0544099020c42aa7Chris Lattner if (isInlineAsm()) { 966c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng assert(DefOpIdx > InlineAsm::MIOp_FirstOperand); 967d9df5017040489303acb57bdd8697ef0f8bafc08Bob Wilson const MachineOperand &MO = getOperand(DefOpIdx); 968c30aa7b3de0ce8c37e9630e8e7a73cb83c808c62Chris Lattner if (!MO.isReg() || !MO.isDef() || MO.getReg() == 0) 969fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng return false; 970ef5d070bbe55d7165fc84778ca7757c3cfeea491Evan Cheng // Determine the actual operand index that corresponds to this index. 971fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng unsigned DefNo = 0; 972ef5d070bbe55d7165fc84778ca7757c3cfeea491Evan Cheng unsigned DefPart = 0; 973c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng for (unsigned i = InlineAsm::MIOp_FirstOperand, e = getNumOperands(); 974c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng i < e; ) { 975fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng const MachineOperand &FMO = getOperand(i); 97645d34fe35846eed7019bdc2f7814025302849e0cJakob Stoklund Olesen // After the normal asm operands there may be additional imp-def regs. 97745d34fe35846eed7019bdc2f7814025302849e0cJakob Stoklund Olesen if (!FMO.isImm()) 97845d34fe35846eed7019bdc2f7814025302849e0cJakob Stoklund Olesen return false; 979fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng // Skip over this def. 980ef5d070bbe55d7165fc84778ca7757c3cfeea491Evan Cheng unsigned NumOps = InlineAsm::getNumOperandRegisters(FMO.getImm()); 981ef5d070bbe55d7165fc84778ca7757c3cfeea491Evan Cheng unsigned PrevDef = i + 1; 982ef5d070bbe55d7165fc84778ca7757c3cfeea491Evan Cheng i = PrevDef + NumOps; 983ef5d070bbe55d7165fc84778ca7757c3cfeea491Evan Cheng if (i > DefOpIdx) { 984ef5d070bbe55d7165fc84778ca7757c3cfeea491Evan Cheng DefPart = DefOpIdx - PrevDef; 985fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng break; 986ef5d070bbe55d7165fc84778ca7757c3cfeea491Evan Cheng } 987fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng ++DefNo; 988fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng } 989c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng for (unsigned i = InlineAsm::MIOp_FirstOperand, e = getNumOperands(); 990c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng i != e; ++i) { 991fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng const MachineOperand &FMO = getOperand(i); 992fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng if (!FMO.isImm()) 993fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng continue; 994fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng if (i+1 >= e || !getOperand(i+1).isReg() || !getOperand(i+1).isUse()) 995fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng continue; 996fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng unsigned Idx; 997ef5d070bbe55d7165fc84778ca7757c3cfeea491Evan Cheng if (InlineAsm::isUseOperandTiedToDef(FMO.getImm(), Idx) && 998d9df5017040489303acb57bdd8697ef0f8bafc08Bob Wilson Idx == DefNo) { 999d9df5017040489303acb57bdd8697ef0f8bafc08Bob Wilson if (UseOpIdx) 1000ef5d070bbe55d7165fc84778ca7757c3cfeea491Evan Cheng *UseOpIdx = (unsigned)i + 1 + DefPart; 1001fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng return true; 1002d9df5017040489303acb57bdd8697ef0f8bafc08Bob Wilson } 1003fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng } 1004ef5d070bbe55d7165fc84778ca7757c3cfeea491Evan Cheng return false; 1005fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng } 1006fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng 1007d9df5017040489303acb57bdd8697ef0f8bafc08Bob Wilson assert(getOperand(DefOpIdx).isDef() && "DefOpIdx is not a def!"); 1008e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng const MCInstrDesc &MCID = getDesc(); 1009e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng for (unsigned i = 0, e = MCID.getNumOperands(); i != e; ++i) { 1010ef0732d25a9882c947984ae3f2afbef5463ba00fEvan Cheng const MachineOperand &MO = getOperand(i); 10112ce7f2068f13566f5a70ee779e3bb83a6cb8d942Dan Gohman if (MO.isReg() && MO.isUse() && 1012e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng MCID.getOperandConstraint(i, MCOI::TIED_TO) == (int)DefOpIdx) { 1013d9df5017040489303acb57bdd8697ef0f8bafc08Bob Wilson if (UseOpIdx) 1014d9df5017040489303acb57bdd8697ef0f8bafc08Bob Wilson *UseOpIdx = (unsigned)i; 1015ef0732d25a9882c947984ae3f2afbef5463ba00fEvan Cheng return true; 1016d9df5017040489303acb57bdd8697ef0f8bafc08Bob Wilson } 101732dfbeada7292167bb488f36a71a5a6a519ddaffEvan Cheng } 101832dfbeada7292167bb488f36a71a5a6a519ddaffEvan Cheng return false; 101932dfbeada7292167bb488f36a71a5a6a519ddaffEvan Cheng} 102032dfbeada7292167bb488f36a71a5a6a519ddaffEvan Cheng 1021a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng/// isRegTiedToDefOperand - Return true if the operand of the specified index 1022a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng/// is a register use and it is tied to an def operand. It also returns the def 1023a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng/// operand index by reference. 1024ce9be2cf5dc84865f6b819bd3f9be16944426268Jakob Stoklund Olesenbool MachineInstr:: 1025ce9be2cf5dc84865f6b819bd3f9be16944426268Jakob Stoklund OlesenisRegTiedToDefOperand(unsigned UseOpIdx, unsigned *DefOpIdx) const { 1026518bb53485df640d7b7e3f6b0544099020c42aa7Chris Lattner if (isInlineAsm()) { 1027fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng const MachineOperand &MO = getOperand(UseOpIdx); 10280c8382ce9a96e36325b17d242fd1af16564d8a85Chris Lattner if (!MO.isReg() || !MO.isUse() || MO.getReg() == 0) 1029fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng return false; 103057e599a46b7b1321f9af02d1cecb4fa6b34f8a52Jakob Stoklund Olesen 103157e599a46b7b1321f9af02d1cecb4fa6b34f8a52Jakob Stoklund Olesen // Find the flag operand corresponding to UseOpIdx 103257e599a46b7b1321f9af02d1cecb4fa6b34f8a52Jakob Stoklund Olesen unsigned FlagIdx, NumOps=0; 1033c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng for (FlagIdx = InlineAsm::MIOp_FirstOperand; 1034c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng FlagIdx < UseOpIdx; FlagIdx += NumOps+1) { 103557e599a46b7b1321f9af02d1cecb4fa6b34f8a52Jakob Stoklund Olesen const MachineOperand &UFMO = getOperand(FlagIdx); 103645d34fe35846eed7019bdc2f7814025302849e0cJakob Stoklund Olesen // After the normal asm operands there may be additional imp-def regs. 103745d34fe35846eed7019bdc2f7814025302849e0cJakob Stoklund Olesen if (!UFMO.isImm()) 103845d34fe35846eed7019bdc2f7814025302849e0cJakob Stoklund Olesen return false; 103957e599a46b7b1321f9af02d1cecb4fa6b34f8a52Jakob Stoklund Olesen NumOps = InlineAsm::getNumOperandRegisters(UFMO.getImm()); 104057e599a46b7b1321f9af02d1cecb4fa6b34f8a52Jakob Stoklund Olesen assert(NumOps < getNumOperands() && "Invalid inline asm flag"); 104157e599a46b7b1321f9af02d1cecb4fa6b34f8a52Jakob Stoklund Olesen if (UseOpIdx < FlagIdx+NumOps+1) 104257e599a46b7b1321f9af02d1cecb4fa6b34f8a52Jakob Stoklund Olesen break; 1043ef5d070bbe55d7165fc84778ca7757c3cfeea491Evan Cheng } 104457e599a46b7b1321f9af02d1cecb4fa6b34f8a52Jakob Stoklund Olesen if (FlagIdx >= UseOpIdx) 1045ef5d070bbe55d7165fc84778ca7757c3cfeea491Evan Cheng return false; 104657e599a46b7b1321f9af02d1cecb4fa6b34f8a52Jakob Stoklund Olesen const MachineOperand &UFMO = getOperand(FlagIdx); 1047fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng unsigned DefNo; 1048fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng if (InlineAsm::isUseOperandTiedToDef(UFMO.getImm(), DefNo)) { 1049fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng if (!DefOpIdx) 1050fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng return true; 1051fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng 1052c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng unsigned DefIdx = InlineAsm::MIOp_FirstOperand; 1053f1e309eb4862459a76445942ba4dafc433b6f317Dale Johannesen // Remember to adjust the index. First operand is asm string, second is 1054c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng // the HasSideEffects and AlignStack bits, then there is a flag for each. 1055fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng while (DefNo) { 1056fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng const MachineOperand &FMO = getOperand(DefIdx); 1057fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng assert(FMO.isImm()); 1058fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng // Skip over this def. 1059fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng DefIdx += InlineAsm::getNumOperandRegisters(FMO.getImm()) + 1; 1060fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng --DefNo; 1061fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng } 1062ef5d070bbe55d7165fc84778ca7757c3cfeea491Evan Cheng *DefOpIdx = DefIdx + UseOpIdx - FlagIdx; 1063fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng return true; 1064fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng } 1065fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng return false; 1066fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng } 1067fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng 1068e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng const MCInstrDesc &MCID = getDesc(); 1069e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng if (UseOpIdx >= MCID.getNumOperands()) 1070a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng return false; 1071a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng const MachineOperand &MO = getOperand(UseOpIdx); 1072a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng if (!MO.isReg() || !MO.isUse()) 1073a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng return false; 1074e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng int DefIdx = MCID.getOperandConstraint(UseOpIdx, MCOI::TIED_TO); 1075a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng if (DefIdx == -1) 1076a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng return false; 1077a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng if (DefOpIdx) 1078a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng *DefOpIdx = (unsigned)DefIdx; 1079a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng return true; 1080a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng} 1081a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng 1082e6cd757e6800b9b94a6459ec148c0624c4f2e3c1Dan Gohman/// clearKillInfo - Clears kill flags on all operands. 1083e6cd757e6800b9b94a6459ec148c0624c4f2e3c1Dan Gohman/// 1084e6cd757e6800b9b94a6459ec148c0624c4f2e3c1Dan Gohmanvoid MachineInstr::clearKillInfo() { 1085e6cd757e6800b9b94a6459ec148c0624c4f2e3c1Dan Gohman for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 1086e6cd757e6800b9b94a6459ec148c0624c4f2e3c1Dan Gohman MachineOperand &MO = getOperand(i); 1087e6cd757e6800b9b94a6459ec148c0624c4f2e3c1Dan Gohman if (MO.isReg() && MO.isUse()) 1088e6cd757e6800b9b94a6459ec148c0624c4f2e3c1Dan Gohman MO.setIsKill(false); 1089e6cd757e6800b9b94a6459ec148c0624c4f2e3c1Dan Gohman } 1090e6cd757e6800b9b94a6459ec148c0624c4f2e3c1Dan Gohman} 1091e6cd757e6800b9b94a6459ec148c0624c4f2e3c1Dan Gohman 1092576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng/// copyKillDeadInfo - Copies kill / dead operand properties from MI. 1093576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng/// 1094576d123e130a8291669dd2384a3735cc4933fd00Evan Chengvoid MachineInstr::copyKillDeadInfo(const MachineInstr *MI) { 1095576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng for (unsigned i = 0, e = MI->getNumOperands(); i != e; ++i) { 1096576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng const MachineOperand &MO = MI->getOperand(i); 1097d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (!MO.isReg() || (!MO.isKill() && !MO.isDead())) 1098576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng continue; 1099576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng for (unsigned j = 0, ee = getNumOperands(); j != ee; ++j) { 1100576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng MachineOperand &MOp = getOperand(j); 1101576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng if (!MOp.isIdenticalTo(MO)) 1102576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng continue; 1103576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng if (MO.isKill()) 1104576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng MOp.setIsKill(); 1105576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng else 1106576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng MOp.setIsDead(); 1107576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng break; 1108576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng } 1109576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng } 1110576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng} 1111576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng 111219e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng/// copyPredicates - Copies predicate operand(s) from MI. 111319e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Chengvoid MachineInstr::copyPredicates(const MachineInstr *MI) { 1114e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng const MCInstrDesc &MCID = MI->getDesc(); 1115e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng if (!MCID.isPredicable()) 1116b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng return; 1117b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng for (unsigned i = 0, e = MI->getNumOperands(); i != e; ++i) { 1118e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng if (MCID.OpInfo[i].isPredicate()) { 1119b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng // Predicated operands must be last operands. 1120b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng addOperand(MI->getOperand(i)); 112119e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng } 112219e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng } 112319e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng} 112419e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng 11259edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesenvoid MachineInstr::substituteRegister(unsigned FromReg, 11269edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen unsigned ToReg, 11279edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen unsigned SubIdx, 11289edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen const TargetRegisterInfo &RegInfo) { 11299edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen if (TargetRegisterInfo::isPhysicalRegister(ToReg)) { 11309edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen if (SubIdx) 11319edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen ToReg = RegInfo.getSubReg(ToReg, SubIdx); 11329edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 11339edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen MachineOperand &MO = getOperand(i); 11349edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen if (!MO.isReg() || MO.getReg() != FromReg) 11359edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen continue; 11369edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen MO.substPhysReg(ToReg, RegInfo); 11379edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen } 11389edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen } else { 11399edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 11409edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen MachineOperand &MO = getOperand(i); 11419edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen if (!MO.isReg() || MO.getReg() != FromReg) 11429edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen continue; 11439edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen MO.substVirtReg(ToReg, SubIdx, RegInfo); 11449edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen } 11459edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen } 11469edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen} 11479edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen 11489f1c8317a4676945b4961ddb9827ef2412551620Evan Cheng/// isSafeToMove - Return true if it is safe to move this instruction. If 11499f1c8317a4676945b4961ddb9827ef2412551620Evan Cheng/// SawStore is set to true, it means that there is a store (or call) between 11509f1c8317a4676945b4961ddb9827ef2412551620Evan Cheng/// the instruction's location and its intended destination. 1151b3b930a011554fc7566dd4311af3862b01e5fd8fDan Gohmanbool MachineInstr::isSafeToMove(const TargetInstrInfo *TII, 1152ac1abde05b7e6956c01deb6557539bee8fea30f4Evan Cheng AliasAnalysis *AA, 1153ac1abde05b7e6956c01deb6557539bee8fea30f4Evan Cheng bool &SawStore) const { 1154b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng // Ignore stuff that we obviously can't move. 1155e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng if (MCID->mayStore() || MCID->isCall()) { 1156b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng SawStore = true; 1157b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng return false; 1158b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng } 115930a343aeedf777f9b8b6be9823da750afbf765b1Evan Cheng 116030a343aeedf777f9b8b6be9823da750afbf765b1Evan Cheng if (isLabel() || isDebugValue() || 1161e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng MCID->isTerminator() || hasUnmodeledSideEffects()) 1162b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng return false; 1163b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng 1164b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng // See if this instruction does a load. If so, we have to guarantee that the 1165b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng // loaded value doesn't change between the load and the its intended 1166b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng // destination. The check for isInvariantLoad gives the targe the chance to 1167b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng // classify the load as always returning a constant, e.g. a constant pool 1168b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng // load. 1169e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng if (MCID->mayLoad() && !isInvariantLoad(AA)) 1170b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng // Otherwise, this is a real load. If there is a store between the load and 11717cc2c406d0c82bcf329048ced643ec77fcae60e6Evan Cheng // end of block, or if the load is volatile, we can't move it. 1172d790a5ceee7138d8a5352432ccf862a42e3f5819Dan Gohman return !SawStore && !hasVolatileMemoryRef(); 11733e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman 1174b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng return true; 1175b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng} 1176b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng 1177df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng/// isSafeToReMat - Return true if it's safe to rematerialize the specified 1178df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng/// instruction which defined the specified register instead of copying it. 1179b3b930a011554fc7566dd4311af3862b01e5fd8fDan Gohmanbool MachineInstr::isSafeToReMat(const TargetInstrInfo *TII, 1180ac1abde05b7e6956c01deb6557539bee8fea30f4Evan Cheng AliasAnalysis *AA, 1181ac1abde05b7e6956c01deb6557539bee8fea30f4Evan Cheng unsigned DstReg) const { 1182df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng bool SawStore = false; 1183a70dca156fa76d452f54829b5c5f962ddfd94ef2Dan Gohman if (!TII->isTriviallyReMaterializable(this, AA) || 1184ac1abde05b7e6956c01deb6557539bee8fea30f4Evan Cheng !isSafeToMove(TII, AA, SawStore)) 1185df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng return false; 1186df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 1187cbad42cfd1cc93a41ff26ea2e8895bfbc09f54f2Dan Gohman const MachineOperand &MO = getOperand(i); 1188d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (!MO.isReg()) 1189df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng continue; 1190df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng // FIXME: For now, do not remat any instruction with register operands. 1191df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng // Later on, we can loosen the restriction is the register operands have 1192df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng // not been modified between the def and use. Note, this is different from 11938763c1c54413c9cd0b56e2860edb5856151a69fcEvan Cheng // MachineSink because the code is no longer in two-address form (at least 1194df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng // partially). 1195df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng if (MO.isUse()) 1196df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng return false; 1197df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng else if (!MO.isDead() && MO.getReg() != DstReg) 1198df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng return false; 1199df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng } 1200df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng return true; 1201df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng} 1202df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng 12033e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman/// hasVolatileMemoryRef - Return true if this instruction may have a 12043e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman/// volatile memory reference, or if the information describing the 12053e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman/// memory reference is not available. Return false if it is known to 12063e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman/// have no volatile memory references. 12073e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohmanbool MachineInstr::hasVolatileMemoryRef() const { 12083e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman // An instruction known never to access memory won't have a volatile access. 1209e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng if (!MCID->mayStore() && 1210e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng !MCID->mayLoad() && 1211e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng !MCID->isCall() && 1212c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng !hasUnmodeledSideEffects()) 12133e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman return false; 12143e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman 12153e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman // Otherwise, if the instruction has no memory reference information, 12163e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman // conservatively assume it wasn't preserved. 12173e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman if (memoperands_empty()) 12183e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman return true; 1219ee61d67c2f1105e23b2ea5110389f3b7b713b504Jim Grosbach 12203e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman // Check the memory reference information for volatile references. 1221c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman for (mmo_iterator I = memoperands_begin(), E = memoperands_end(); I != E; ++I) 1222c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman if ((*I)->isVolatile()) 12233e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman return true; 12243e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman 12253e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman return false; 12263e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman} 12273e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman 1228e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman/// isInvariantLoad - Return true if this instruction is loading from a 1229e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman/// location whose value is invariant across the function. For example, 1230f451cb870efcf9e0302d25ed05f4cac6bb494e42Dan Gohman/// loading a value from the constant pool or from the argument area 1231e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman/// of a function if it does not change. This should only return true of 1232e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman/// *all* loads the instruction does are invariant (if it does multiple loads). 1233e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohmanbool MachineInstr::isInvariantLoad(AliasAnalysis *AA) const { 1234e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman // If the instruction doesn't load at all, it isn't an invariant load. 1235e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng if (!MCID->mayLoad()) 1236e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman return false; 1237e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman 1238e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman // If the instruction has lost its memoperands, conservatively assume that 1239e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman // it may not be an invariant load. 1240e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman if (memoperands_empty()) 1241e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman return false; 1242e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman 1243e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman const MachineFrameInfo *MFI = getParent()->getParent()->getFrameInfo(); 1244e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman 1245e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman for (mmo_iterator I = memoperands_begin(), 1246e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman E = memoperands_end(); I != E; ++I) { 1247e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman if ((*I)->isVolatile()) return false; 1248e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman if ((*I)->isStore()) return false; 1249e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman 1250e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman if (const Value *V = (*I)->getValue()) { 1251e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman // A load from a constant PseudoSourceValue is invariant. 1252e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman if (const PseudoSourceValue *PSV = dyn_cast<PseudoSourceValue>(V)) 1253e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman if (PSV->isConstant(MFI)) 1254e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman continue; 1255e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman // If we have an AliasAnalysis, ask it whether the memory is constant. 1256f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman if (AA && AA->pointsToConstantMemory( 1257f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman AliasAnalysis::Location(V, (*I)->getSize(), 1258f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman (*I)->getTBAAInfo()))) 1259e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman continue; 1260e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman } 1261e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman 1262e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman // Otherwise assume conservatively. 1263e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman return false; 1264e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman } 1265e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman 1266e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman // Everything checks out. 1267e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman return true; 1268e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman} 1269e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman 1270229694f0ee630ceabe96a8bd48952f6740f928b2Evan Cheng/// isConstantValuePHI - If the specified instruction is a PHI that always 1271229694f0ee630ceabe96a8bd48952f6740f928b2Evan Cheng/// merges together the same virtual register, return the register, otherwise 1272229694f0ee630ceabe96a8bd48952f6740f928b2Evan Cheng/// return 0. 1273229694f0ee630ceabe96a8bd48952f6740f928b2Evan Chengunsigned MachineInstr::isConstantValuePHI() const { 1274518bb53485df640d7b7e3f6b0544099020c42aa7Chris Lattner if (!isPHI()) 1275229694f0ee630ceabe96a8bd48952f6740f928b2Evan Cheng return 0; 1276d8f079c25e8bcaf4d10bfa9c3f6a38cd5ac84329Evan Cheng assert(getNumOperands() >= 3 && 1277d8f079c25e8bcaf4d10bfa9c3f6a38cd5ac84329Evan Cheng "It's illegal to have a PHI without source operands"); 1278229694f0ee630ceabe96a8bd48952f6740f928b2Evan Cheng 1279229694f0ee630ceabe96a8bd48952f6740f928b2Evan Cheng unsigned Reg = getOperand(1).getReg(); 1280229694f0ee630ceabe96a8bd48952f6740f928b2Evan Cheng for (unsigned i = 3, e = getNumOperands(); i < e; i += 2) 1281229694f0ee630ceabe96a8bd48952f6740f928b2Evan Cheng if (getOperand(i).getReg() != Reg) 1282229694f0ee630ceabe96a8bd48952f6740f928b2Evan Cheng return 0; 1283229694f0ee630ceabe96a8bd48952f6740f928b2Evan Cheng return Reg; 1284229694f0ee630ceabe96a8bd48952f6740f928b2Evan Cheng} 1285229694f0ee630ceabe96a8bd48952f6740f928b2Evan Cheng 1286c36b7069b42bece963b7e6adf020353ce990ef76Evan Chengbool MachineInstr::hasUnmodeledSideEffects() const { 1287c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng if (getDesc().hasUnmodeledSideEffects()) 1288c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng return true; 1289c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng if (isInlineAsm()) { 1290c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng unsigned ExtraInfo = getOperand(InlineAsm::MIOp_ExtraInfo).getImm(); 1291c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng if (ExtraInfo & InlineAsm::Extra_HasSideEffects) 1292c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng return true; 1293c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng } 1294c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng 1295c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng return false; 1296c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng} 1297c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng 1298a57fabe815ccf016eead526eb3ef475f116ab155Evan Cheng/// allDefsAreDead - Return true if all the defs of this instruction are dead. 1299a57fabe815ccf016eead526eb3ef475f116ab155Evan Cheng/// 1300a57fabe815ccf016eead526eb3ef475f116ab155Evan Chengbool MachineInstr::allDefsAreDead() const { 1301a57fabe815ccf016eead526eb3ef475f116ab155Evan Cheng for (unsigned i = 0, e = getNumOperands(); i < e; ++i) { 1302a57fabe815ccf016eead526eb3ef475f116ab155Evan Cheng const MachineOperand &MO = getOperand(i); 1303a57fabe815ccf016eead526eb3ef475f116ab155Evan Cheng if (!MO.isReg() || MO.isUse()) 1304a57fabe815ccf016eead526eb3ef475f116ab155Evan Cheng continue; 1305a57fabe815ccf016eead526eb3ef475f116ab155Evan Cheng if (!MO.isDead()) 1306a57fabe815ccf016eead526eb3ef475f116ab155Evan Cheng return false; 1307a57fabe815ccf016eead526eb3ef475f116ab155Evan Cheng } 1308a57fabe815ccf016eead526eb3ef475f116ab155Evan Cheng return true; 1309a57fabe815ccf016eead526eb3ef475f116ab155Evan Cheng} 1310a57fabe815ccf016eead526eb3ef475f116ab155Evan Cheng 1311c8f46c45a0bdefdb91593cabc87547cc45f9d89dEvan Cheng/// copyImplicitOps - Copy implicit register operands from specified 1312c8f46c45a0bdefdb91593cabc87547cc45f9d89dEvan Cheng/// instruction to this instruction. 1313c8f46c45a0bdefdb91593cabc87547cc45f9d89dEvan Chengvoid MachineInstr::copyImplicitOps(const MachineInstr *MI) { 1314c8f46c45a0bdefdb91593cabc87547cc45f9d89dEvan Cheng for (unsigned i = MI->getDesc().getNumOperands(), e = MI->getNumOperands(); 1315c8f46c45a0bdefdb91593cabc87547cc45f9d89dEvan Cheng i != e; ++i) { 1316c8f46c45a0bdefdb91593cabc87547cc45f9d89dEvan Cheng const MachineOperand &MO = MI->getOperand(i); 1317c8f46c45a0bdefdb91593cabc87547cc45f9d89dEvan Cheng if (MO.isReg() && MO.isImplicit()) 1318c8f46c45a0bdefdb91593cabc87547cc45f9d89dEvan Cheng addOperand(MO); 1319c8f46c45a0bdefdb91593cabc87547cc45f9d89dEvan Cheng } 1320c8f46c45a0bdefdb91593cabc87547cc45f9d89dEvan Cheng} 1321c8f46c45a0bdefdb91593cabc87547cc45f9d89dEvan Cheng 132221326fc2ad47ee7e73a8c0b03a4a0cc0b0a0c4e8Brian Gaekevoid MachineInstr::dump() const { 13233b325334102144ec39910563eabebde434504564David Greene dbgs() << " " << *this; 13245ca6bd14a00ba5310ce1a632d3a0cc8f8af31433Mon P Wang} 13255ca6bd14a00ba5310ce1a632d3a0cc8f8af31433Mon P Wang 1326ee61d67c2f1105e23b2ea5110389f3b7b713b504Jim Grosbachstatic void printDebugLoc(DebugLoc DL, const MachineFunction *MF, 1327da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel raw_ostream &CommentOS) { 1328da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel const LLVMContext &Ctx = MF->getFunction()->getContext(); 1329da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel if (!DL.isUnknown()) { // Print source line info. 1330da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel DIScope Scope(DL.getScope(Ctx)); 1331da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel // Omit the directory, because it's likely to be long and uninteresting. 1332da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel if (Scope.Verify()) 1333da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel CommentOS << Scope.getFilename(); 1334da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel else 1335da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel CommentOS << "<unknown>"; 1336da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel CommentOS << ':' << DL.getLine(); 1337da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel if (DL.getCol() != 0) 1338da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel CommentOS << ':' << DL.getCol(); 1339da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel DebugLoc InlinedAtDL = DebugLoc::getFromDILocation(DL.getInlinedAt(Ctx)); 1340da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel if (!InlinedAtDL.isUnknown()) { 1341da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel CommentOS << " @[ "; 1342da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel printDebugLoc(InlinedAtDL, MF, CommentOS); 1343da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel CommentOS << " ]"; 1344da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel } 1345da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel } 1346da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel} 1347da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel 13485ca6bd14a00ba5310ce1a632d3a0cc8f8af31433Mon P Wangvoid MachineInstr::print(raw_ostream &OS, const TargetMachine *TM) const { 134980f6c5898113806130975fd56d24929b06bf54f8Dan Gohman // We can be a bit tidier if we know the TargetMachine and/or MachineFunction. 135080f6c5898113806130975fd56d24929b06bf54f8Dan Gohman const MachineFunction *MF = 0; 1351a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen const MachineRegisterInfo *MRI = 0; 135280f6c5898113806130975fd56d24929b06bf54f8Dan Gohman if (const MachineBasicBlock *MBB = getParent()) { 135380f6c5898113806130975fd56d24929b06bf54f8Dan Gohman MF = MBB->getParent(); 135480f6c5898113806130975fd56d24929b06bf54f8Dan Gohman if (!TM && MF) 135580f6c5898113806130975fd56d24929b06bf54f8Dan Gohman TM = &MF->getTarget(); 1356a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen if (MF) 1357a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen MRI = &MF->getRegInfo(); 135880f6c5898113806130975fd56d24929b06bf54f8Dan Gohman } 13590ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman 1360a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen // Save a list of virtual registers. 1361a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen SmallVector<unsigned, 8> VirtRegs; 1362a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen 13630ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman // Print explicitly defined operands on the left of an assignment syntax. 136480f6c5898113806130975fd56d24929b06bf54f8Dan Gohman unsigned StartOp = 0, e = getNumOperands(); 13650ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman for (; StartOp < e && getOperand(StartOp).isReg() && 13660ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman getOperand(StartOp).isDef() && 13670ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman !getOperand(StartOp).isImplicit(); 13680ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman ++StartOp) { 13690ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman if (StartOp != 0) OS << ", "; 13700ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman getOperand(StartOp).print(OS, TM); 1371a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen unsigned Reg = getOperand(StartOp).getReg(); 1372c9df025e33ac435adb3b3318d237c36ca7cec659Jakob Stoklund Olesen if (TargetRegisterInfo::isVirtualRegister(Reg)) 1373a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen VirtRegs.push_back(Reg); 13746a592271fb2946a0704b06fd66199987cdd40b3cChris Lattner } 1375b140762a45d21aaed054f15adaff0fc2274d939dTanya Lattner 13760ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman if (StartOp != 0) 13770ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman OS << " = "; 13780ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman 13790ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman // Print the opcode name. 1380749c6f6b5ed301c84aac562e414486549d7b98ebChris Lattner OS << getDesc().getName(); 1381edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 13820ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman // Print the rest of the operands. 138380f6c5898113806130975fd56d24929b06bf54f8Dan Gohman bool OmittedAnyCallClobbers = false; 138480f6c5898113806130975fd56d24929b06bf54f8Dan Gohman bool FirstOp = true; 13857a2ecd3f99ae4dede7e8c1984c2a08984be69363Jakob Stoklund Olesen unsigned AsmDescOp = ~0u; 13867a2ecd3f99ae4dede7e8c1984c2a08984be69363Jakob Stoklund Olesen unsigned AsmOpCount = 0; 1387c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng 1388c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng if (isInlineAsm()) { 1389c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng // Print asm string. 1390c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng OS << " "; 1391c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng getOperand(InlineAsm::MIOp_AsmString).print(OS, TM); 1392c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng 1393c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng // Print HasSideEffects, IsAlignStack 1394c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng unsigned ExtraInfo = getOperand(InlineAsm::MIOp_ExtraInfo).getImm(); 1395c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng if (ExtraInfo & InlineAsm::Extra_HasSideEffects) 1396c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng OS << " [sideeffect]"; 1397c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng if (ExtraInfo & InlineAsm::Extra_IsAlignStack) 1398c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng OS << " [alignstack]"; 1399c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng 14007a2ecd3f99ae4dede7e8c1984c2a08984be69363Jakob Stoklund Olesen StartOp = AsmDescOp = InlineAsm::MIOp_FirstOperand; 1401c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng FirstOp = false; 1402c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng } 1403c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng 1404c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng 14056a592271fb2946a0704b06fd66199987cdd40b3cChris Lattner for (unsigned i = StartOp, e = getNumOperands(); i != e; ++i) { 140680f6c5898113806130975fd56d24929b06bf54f8Dan Gohman const MachineOperand &MO = getOperand(i); 140780f6c5898113806130975fd56d24929b06bf54f8Dan Gohman 1408c9df025e33ac435adb3b3318d237c36ca7cec659Jakob Stoklund Olesen if (MO.isReg() && TargetRegisterInfo::isVirtualRegister(MO.getReg())) 1409a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen VirtRegs.push_back(MO.getReg()); 1410a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen 141180f6c5898113806130975fd56d24929b06bf54f8Dan Gohman // Omit call-clobbered registers which aren't used anywhere. This makes 141280f6c5898113806130975fd56d24929b06bf54f8Dan Gohman // call instructions much less noisy on targets where calls clobber lots 141380f6c5898113806130975fd56d24929b06bf54f8Dan Gohman // of registers. Don't rely on MO.isDead() because we may be called before 141480f6c5898113806130975fd56d24929b06bf54f8Dan Gohman // LiveVariables is run, or we may be looking at a non-allocatable reg. 141580f6c5898113806130975fd56d24929b06bf54f8Dan Gohman if (MF && getDesc().isCall() && 141680f6c5898113806130975fd56d24929b06bf54f8Dan Gohman MO.isReg() && MO.isImplicit() && MO.isDef()) { 141780f6c5898113806130975fd56d24929b06bf54f8Dan Gohman unsigned Reg = MO.getReg(); 1418c9df025e33ac435adb3b3318d237c36ca7cec659Jakob Stoklund Olesen if (TargetRegisterInfo::isPhysicalRegister(Reg)) { 141980f6c5898113806130975fd56d24929b06bf54f8Dan Gohman const MachineRegisterInfo &MRI = MF->getRegInfo(); 142080f6c5898113806130975fd56d24929b06bf54f8Dan Gohman if (MRI.use_empty(Reg) && !MRI.isLiveOut(Reg)) { 142180f6c5898113806130975fd56d24929b06bf54f8Dan Gohman bool HasAliasLive = false; 142280f6c5898113806130975fd56d24929b06bf54f8Dan Gohman for (const unsigned *Alias = TM->getRegisterInfo()->getAliasSet(Reg); 142380f6c5898113806130975fd56d24929b06bf54f8Dan Gohman unsigned AliasReg = *Alias; ++Alias) 142480f6c5898113806130975fd56d24929b06bf54f8Dan Gohman if (!MRI.use_empty(AliasReg) || MRI.isLiveOut(AliasReg)) { 142580f6c5898113806130975fd56d24929b06bf54f8Dan Gohman HasAliasLive = true; 142680f6c5898113806130975fd56d24929b06bf54f8Dan Gohman break; 142780f6c5898113806130975fd56d24929b06bf54f8Dan Gohman } 142880f6c5898113806130975fd56d24929b06bf54f8Dan Gohman if (!HasAliasLive) { 142980f6c5898113806130975fd56d24929b06bf54f8Dan Gohman OmittedAnyCallClobbers = true; 143080f6c5898113806130975fd56d24929b06bf54f8Dan Gohman continue; 143180f6c5898113806130975fd56d24929b06bf54f8Dan Gohman } 143280f6c5898113806130975fd56d24929b06bf54f8Dan Gohman } 143380f6c5898113806130975fd56d24929b06bf54f8Dan Gohman } 143480f6c5898113806130975fd56d24929b06bf54f8Dan Gohman } 143580f6c5898113806130975fd56d24929b06bf54f8Dan Gohman 143680f6c5898113806130975fd56d24929b06bf54f8Dan Gohman if (FirstOp) FirstOp = false; else OS << ","; 14376a592271fb2946a0704b06fd66199987cdd40b3cChris Lattner OS << " "; 1438b1bb4afbc7d801f9875be135c428b6f05511db5dJakob Stoklund Olesen if (i < getDesc().NumOperands) { 1439e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng const MCOperandInfo &MCOI = getDesc().OpInfo[i]; 1440e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng if (MCOI.isPredicate()) 1441b1bb4afbc7d801f9875be135c428b6f05511db5dJakob Stoklund Olesen OS << "pred:"; 1442e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng if (MCOI.isOptionalDef()) 1443b1bb4afbc7d801f9875be135c428b6f05511db5dJakob Stoklund Olesen OS << "opt:"; 1444b1bb4afbc7d801f9875be135c428b6f05511db5dJakob Stoklund Olesen } 144559b3655564bb6717b296ca9e71f13bf7db45b590Evan Cheng if (isDebugValue() && MO.isMetadata()) { 144659b3655564bb6717b296ca9e71f13bf7db45b590Evan Cheng // Pretty print DBG_VALUE instructions. 144759b3655564bb6717b296ca9e71f13bf7db45b590Evan Cheng const MDNode *MD = MO.getMetadata(); 144859b3655564bb6717b296ca9e71f13bf7db45b590Evan Cheng if (const MDString *MDS = dyn_cast<MDString>(MD->getOperand(2))) 144959b3655564bb6717b296ca9e71f13bf7db45b590Evan Cheng OS << "!\"" << MDS->getString() << '\"'; 145059b3655564bb6717b296ca9e71f13bf7db45b590Evan Cheng else 145159b3655564bb6717b296ca9e71f13bf7db45b590Evan Cheng MO.print(OS, TM); 1452b1e11455d1cf4df081a9593660d194c1a53b4334Jakob Stoklund Olesen } else if (TM && (isInsertSubreg() || isRegSequence()) && MO.isImm()) { 1453b1e11455d1cf4df081a9593660d194c1a53b4334Jakob Stoklund Olesen OS << TM->getRegisterInfo()->getSubRegIndexName(MO.getImm()); 14547a2ecd3f99ae4dede7e8c1984c2a08984be69363Jakob Stoklund Olesen } else if (i == AsmDescOp && MO.isImm()) { 14557a2ecd3f99ae4dede7e8c1984c2a08984be69363Jakob Stoklund Olesen // Pretty print the inline asm operand descriptor. 14567a2ecd3f99ae4dede7e8c1984c2a08984be69363Jakob Stoklund Olesen OS << '$' << AsmOpCount++; 14577a2ecd3f99ae4dede7e8c1984c2a08984be69363Jakob Stoklund Olesen unsigned Flag = MO.getImm(); 14587a2ecd3f99ae4dede7e8c1984c2a08984be69363Jakob Stoklund Olesen switch (InlineAsm::getKind(Flag)) { 14597a2ecd3f99ae4dede7e8c1984c2a08984be69363Jakob Stoklund Olesen case InlineAsm::Kind_RegUse: OS << ":[reguse]"; break; 14607a2ecd3f99ae4dede7e8c1984c2a08984be69363Jakob Stoklund Olesen case InlineAsm::Kind_RegDef: OS << ":[regdef]"; break; 1461f792fa90f1125553008659c743cba85b9b5d2e5eJakob Stoklund Olesen case InlineAsm::Kind_RegDefEarlyClobber: OS << ":[regdef-ec]"; break; 1462f792fa90f1125553008659c743cba85b9b5d2e5eJakob Stoklund Olesen case InlineAsm::Kind_Clobber: OS << ":[clobber]"; break; 14637a2ecd3f99ae4dede7e8c1984c2a08984be69363Jakob Stoklund Olesen case InlineAsm::Kind_Imm: OS << ":[imm]"; break; 14647a2ecd3f99ae4dede7e8c1984c2a08984be69363Jakob Stoklund Olesen case InlineAsm::Kind_Mem: OS << ":[mem]"; break; 14657a2ecd3f99ae4dede7e8c1984c2a08984be69363Jakob Stoklund Olesen default: OS << ":[??" << InlineAsm::getKind(Flag) << ']'; break; 14667a2ecd3f99ae4dede7e8c1984c2a08984be69363Jakob Stoklund Olesen } 14677a2ecd3f99ae4dede7e8c1984c2a08984be69363Jakob Stoklund Olesen 14687a2ecd3f99ae4dede7e8c1984c2a08984be69363Jakob Stoklund Olesen unsigned TiedTo = 0; 14697a2ecd3f99ae4dede7e8c1984c2a08984be69363Jakob Stoklund Olesen if (InlineAsm::isUseOperandTiedToDef(Flag, TiedTo)) 14707a2ecd3f99ae4dede7e8c1984c2a08984be69363Jakob Stoklund Olesen OS << " [tiedto:$" << TiedTo << ']'; 14717a2ecd3f99ae4dede7e8c1984c2a08984be69363Jakob Stoklund Olesen 14727a2ecd3f99ae4dede7e8c1984c2a08984be69363Jakob Stoklund Olesen // Compute the index of the next operand descriptor. 14737a2ecd3f99ae4dede7e8c1984c2a08984be69363Jakob Stoklund Olesen AsmDescOp += 1 + InlineAsm::getNumOperandRegisters(Flag); 147459b3655564bb6717b296ca9e71f13bf7db45b590Evan Cheng } else 147559b3655564bb6717b296ca9e71f13bf7db45b590Evan Cheng MO.print(OS, TM); 147680f6c5898113806130975fd56d24929b06bf54f8Dan Gohman } 147780f6c5898113806130975fd56d24929b06bf54f8Dan Gohman 147880f6c5898113806130975fd56d24929b06bf54f8Dan Gohman // Briefly indicate whether any call clobbers were omitted. 147980f6c5898113806130975fd56d24929b06bf54f8Dan Gohman if (OmittedAnyCallClobbers) { 1480164558e59c2a321bf670e31a7bdde0d38d79bb67Bill Wendling if (!FirstOp) OS << ","; 148180f6c5898113806130975fd56d24929b06bf54f8Dan Gohman OS << " ..."; 14821049164aa6b06d91d9b3b557a9a213eaf3f6319aChris Lattner } 1483edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 14840ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman bool HaveSemi = false; 14856dd97471c43805b3febf598d50498a09a02e93f4Anton Korobeynikov if (Flags) { 14866dd97471c43805b3febf598d50498a09a02e93f4Anton Korobeynikov if (!HaveSemi) OS << ";"; HaveSemi = true; 14876dd97471c43805b3febf598d50498a09a02e93f4Anton Korobeynikov OS << " flags: "; 14886dd97471c43805b3febf598d50498a09a02e93f4Anton Korobeynikov 14896dd97471c43805b3febf598d50498a09a02e93f4Anton Korobeynikov if (Flags & FrameSetup) 14906dd97471c43805b3febf598d50498a09a02e93f4Anton Korobeynikov OS << "FrameSetup"; 14916dd97471c43805b3febf598d50498a09a02e93f4Anton Korobeynikov } 14926dd97471c43805b3febf598d50498a09a02e93f4Anton Korobeynikov 14938e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman if (!memoperands_empty()) { 14940ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman if (!HaveSemi) OS << ";"; HaveSemi = true; 14950ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman 14960ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman OS << " mem:"; 1497c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman for (mmo_iterator i = memoperands_begin(), e = memoperands_end(); 1498c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman i != e; ++i) { 1499c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman OS << **i; 1500ee56c42168f6c4271593f6018c4409b6a5910302Oscar Fuentes if (llvm::next(i) != e) 1501cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman OS << " "; 150269de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman } 150369de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman } 150469de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman 1505a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen // Print the regclass of any virtual registers encountered. 1506a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen if (MRI && !VirtRegs.empty()) { 1507a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen if (!HaveSemi) OS << ";"; HaveSemi = true; 1508a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen for (unsigned i = 0; i != VirtRegs.size(); ++i) { 1509a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen const TargetRegisterClass *RC = MRI->getRegClass(VirtRegs[i]); 15104314268128be6d54c9a7f0709680e5a5b40f3ab3Jakob Stoklund Olesen OS << " " << RC->getName() << ':' << PrintReg(VirtRegs[i]); 1511a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen for (unsigned j = i+1; j != VirtRegs.size();) { 1512a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen if (MRI->getRegClass(VirtRegs[j]) != RC) { 1513a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen ++j; 1514a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen continue; 1515a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen } 1516a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen if (VirtRegs[i] != VirtRegs[j]) 15174314268128be6d54c9a7f0709680e5a5b40f3ab3Jakob Stoklund Olesen OS << "," << PrintReg(VirtRegs[j]); 1518a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen VirtRegs.erase(VirtRegs.begin()+j); 1519a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen } 1520a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen } 1521a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen } 1522a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen 15236dd97471c43805b3febf598d50498a09a02e93f4Anton Korobeynikov // Print debug location information. 15244d3586dd230a3b16018da138404dbb87faf2008dDevang Patel if (isDebugValue() && getOperand(e - 1).isMetadata()) { 15254d3586dd230a3b16018da138404dbb87faf2008dDevang Patel if (!HaveSemi) OS << ";"; HaveSemi = true; 15264d3586dd230a3b16018da138404dbb87faf2008dDevang Patel DIVariable DV(getOperand(e - 1).getMetadata()); 15274d3586dd230a3b16018da138404dbb87faf2008dDevang Patel OS << " line no:" << DV.getLineNumber(); 15284d3586dd230a3b16018da138404dbb87faf2008dDevang Patel if (MDNode *InlinedAt = DV.getInlinedAt()) { 15294d3586dd230a3b16018da138404dbb87faf2008dDevang Patel DebugLoc InlinedAtDL = DebugLoc::getFromDILocation(InlinedAt); 15304d3586dd230a3b16018da138404dbb87faf2008dDevang Patel if (!InlinedAtDL.isUnknown()) { 15314d3586dd230a3b16018da138404dbb87faf2008dDevang Patel OS << " inlined @[ "; 15324d3586dd230a3b16018da138404dbb87faf2008dDevang Patel printDebugLoc(InlinedAtDL, MF, OS); 15334d3586dd230a3b16018da138404dbb87faf2008dDevang Patel OS << " ]"; 15344d3586dd230a3b16018da138404dbb87faf2008dDevang Patel } 15354d3586dd230a3b16018da138404dbb87faf2008dDevang Patel } 15364d3586dd230a3b16018da138404dbb87faf2008dDevang Patel } else if (!debugLoc.isUnknown() && MF) { 15376dd97471c43805b3febf598d50498a09a02e93f4Anton Korobeynikov if (!HaveSemi) OS << ";"; HaveSemi = true; 153875ae593a2750f9f7995980c3a03c0d972985e394Dan Gohman OS << " dbg:"; 1539da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel printDebugLoc(debugLoc, MF, OS); 1540b5ef27375731ece13a8ae0102b3f3233351036afBill Wendling } 1541b5ef27375731ece13a8ae0102b3f3233351036afBill Wendling 15426dd97471c43805b3febf598d50498a09a02e93f4Anton Korobeynikov OS << '\n'; 15431049164aa6b06d91d9b3b557a9a213eaf3f6319aChris Lattner} 15441049164aa6b06d91d9b3b557a9a213eaf3f6319aChris Lattner 1545b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Andersonbool MachineInstr::addRegisterKilled(unsigned IncomingReg, 15466f0d024a534af18d9e60b3ea757376cd8a3a980eDan Gohman const TargetRegisterInfo *RegInfo, 1547b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson bool AddIfNotFound) { 15489b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng bool isPhysReg = TargetRegisterInfo::isPhysicalRegister(IncomingReg); 15492ebc11ac6d19ec806da97bd4f2d49a27932d09fbDan Gohman bool hasAliases = isPhysReg && RegInfo->getAliasSet(IncomingReg); 15503f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman bool Found = false; 15519b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng SmallVector<unsigned,4> DeadOps; 15524a23d72ec21d1bdfda69fd16c9fc10cec39f1fedBill Wendling for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 15534a23d72ec21d1bdfda69fd16c9fc10cec39f1fedBill Wendling MachineOperand &MO = getOperand(i); 1554efb8e3e113cbf359d6a838c3b37fedc8305d19bbJakob Stoklund Olesen if (!MO.isReg() || !MO.isUse() || MO.isUndef()) 15559b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng continue; 15569b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng unsigned Reg = MO.getReg(); 15579b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng if (!Reg) 15589b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng continue; 15594a23d72ec21d1bdfda69fd16c9fc10cec39f1fedBill Wendling 15609b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng if (Reg == IncomingReg) { 15613f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman if (!Found) { 15623f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman if (MO.isKill()) 15633f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman // The register is already marked kill. 15643f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman return true; 1565ece48185168ab130b1777feb86d9e3fe80eb87d2Jakob Stoklund Olesen if (isPhysReg && isRegTiedToDefOperand(i)) 1566ece48185168ab130b1777feb86d9e3fe80eb87d2Jakob Stoklund Olesen // Two-address uses of physregs must not be marked kill. 1567ece48185168ab130b1777feb86d9e3fe80eb87d2Jakob Stoklund Olesen return true; 15683f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman MO.setIsKill(); 15693f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman Found = true; 15703f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman } 15713f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman } else if (hasAliases && MO.isKill() && 15723f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman TargetRegisterInfo::isPhysicalRegister(Reg)) { 15739b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng // A super-register kill already exists. 15749b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng if (RegInfo->isSuperRegister(IncomingReg, Reg)) 15752ebc11ac6d19ec806da97bd4f2d49a27932d09fbDan Gohman return true; 15762ebc11ac6d19ec806da97bd4f2d49a27932d09fbDan Gohman if (RegInfo->isSubRegister(IncomingReg, Reg)) 15779b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng DeadOps.push_back(i); 1578b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson } 1579b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson } 1580b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson 15819b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng // Trim unneeded kill operands. 15829b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng while (!DeadOps.empty()) { 15839b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng unsigned OpIdx = DeadOps.back(); 15849b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng if (getOperand(OpIdx).isImplicit()) 15859b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng RemoveOperand(OpIdx); 15869b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng else 15879b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng getOperand(OpIdx).setIsKill(false); 15889b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng DeadOps.pop_back(); 15899b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng } 15909b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng 15914a23d72ec21d1bdfda69fd16c9fc10cec39f1fedBill Wendling // If not found, this means an alias of one of the operands is killed. Add a 1592b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson // new implicit operand if required. 15933f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman if (!Found && AddIfNotFound) { 15944a23d72ec21d1bdfda69fd16c9fc10cec39f1fedBill Wendling addOperand(MachineOperand::CreateReg(IncomingReg, 15954a23d72ec21d1bdfda69fd16c9fc10cec39f1fedBill Wendling false /*IsDef*/, 15964a23d72ec21d1bdfda69fd16c9fc10cec39f1fedBill Wendling true /*IsImp*/, 15974a23d72ec21d1bdfda69fd16c9fc10cec39f1fedBill Wendling true /*IsKill*/)); 1598b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson return true; 1599b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson } 16003f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman return Found; 1601b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson} 1602b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson 1603b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Andersonbool MachineInstr::addRegisterDead(unsigned IncomingReg, 16046f0d024a534af18d9e60b3ea757376cd8a3a980eDan Gohman const TargetRegisterInfo *RegInfo, 1605b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson bool AddIfNotFound) { 16069b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng bool isPhysReg = TargetRegisterInfo::isPhysicalRegister(IncomingReg); 160701b2e236b571e7c22ee8493b7ea19eda9830d75cEvan Cheng bool hasAliases = isPhysReg && RegInfo->getAliasSet(IncomingReg); 16083f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman bool Found = false; 16099b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng SmallVector<unsigned,4> DeadOps; 1610b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 1611b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson MachineOperand &MO = getOperand(i); 1612d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (!MO.isReg() || !MO.isDef()) 16139b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng continue; 16149b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng unsigned Reg = MO.getReg(); 16153f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman if (!Reg) 16163f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman continue; 16173f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman 16189b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng if (Reg == IncomingReg) { 1619b793bc1ccabef36b3223bae69f5e94a8e98d22ebJakob Stoklund Olesen MO.setIsDead(); 1620b793bc1ccabef36b3223bae69f5e94a8e98d22ebJakob Stoklund Olesen Found = true; 16213f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman } else if (hasAliases && MO.isDead() && 16223f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman TargetRegisterInfo::isPhysicalRegister(Reg)) { 16239b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng // There exists a super-register that's marked dead. 16249b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng if (RegInfo->isSuperRegister(IncomingReg, Reg)) 16252ebc11ac6d19ec806da97bd4f2d49a27932d09fbDan Gohman return true; 162622ae99908258dd5631fde7128a94c418ed08eae5Owen Anderson if (RegInfo->getSubRegisters(IncomingReg) && 162722ae99908258dd5631fde7128a94c418ed08eae5Owen Anderson RegInfo->getSuperRegisters(Reg) && 162822ae99908258dd5631fde7128a94c418ed08eae5Owen Anderson RegInfo->isSubRegister(IncomingReg, Reg)) 16299b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng DeadOps.push_back(i); 1630b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson } 1631b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson } 1632b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson 16339b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng // Trim unneeded dead operands. 16349b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng while (!DeadOps.empty()) { 16359b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng unsigned OpIdx = DeadOps.back(); 16369b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng if (getOperand(OpIdx).isImplicit()) 16379b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng RemoveOperand(OpIdx); 16389b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng else 16399b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng getOperand(OpIdx).setIsDead(false); 16409b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng DeadOps.pop_back(); 16419b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng } 16429b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng 16433f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman // If not found, this means an alias of one of the operands is dead. Add a 16443f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman // new implicit operand if required. 164531530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner if (Found || !AddIfNotFound) 164631530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner return Found; 1647ee61d67c2f1105e23b2ea5110389f3b7b713b504Jim Grosbach 164831530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner addOperand(MachineOperand::CreateReg(IncomingReg, 164931530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner true /*IsDef*/, 165031530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner true /*IsImp*/, 165131530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner false /*IsKill*/, 165231530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner true /*IsDead*/)); 165331530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner return true; 1654b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson} 16558efadf94b568c08de3ff8ce35fd904a935387406Jakob Stoklund Olesen 16568efadf94b568c08de3ff8ce35fd904a935387406Jakob Stoklund Olesenvoid MachineInstr::addRegisterDefined(unsigned IncomingReg, 16578efadf94b568c08de3ff8ce35fd904a935387406Jakob Stoklund Olesen const TargetRegisterInfo *RegInfo) { 165863e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen if (TargetRegisterInfo::isPhysicalRegister(IncomingReg)) { 165963e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen MachineOperand *MO = findRegisterDefOperand(IncomingReg, false, RegInfo); 166063e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen if (MO) 166163e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen return; 166263e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen } else { 166363e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 166463e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen const MachineOperand &MO = getOperand(i); 166563e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen if (MO.isReg() && MO.getReg() == IncomingReg && MO.isDef() && 166663e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen MO.getSubReg() == 0) 166763e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen return; 166863e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen } 166963e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen } 167063e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen addOperand(MachineOperand::CreateReg(IncomingReg, 167163e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen true /*IsDef*/, 167263e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen true /*IsImp*/)); 16738efadf94b568c08de3ff8ce35fd904a935387406Jakob Stoklund Olesen} 167467eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Cheng 1675db4971259ce94cea26e555e9ade82672a3581f5cDan Gohmanvoid MachineInstr::setPhysRegsDeadExcept(const SmallVectorImpl<unsigned> &UsedRegs, 1676db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman const TargetRegisterInfo &TRI) { 1677db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 1678db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman MachineOperand &MO = getOperand(i); 1679db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman if (!MO.isReg() || !MO.isDef()) continue; 1680db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman unsigned Reg = MO.getReg(); 1681db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman if (Reg == 0) continue; 1682db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman bool Dead = true; 1683db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman for (SmallVectorImpl<unsigned>::const_iterator I = UsedRegs.begin(), 1684db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman E = UsedRegs.end(); I != E; ++I) 1685db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman if (TRI.regsOverlap(*I, Reg)) { 1686db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman Dead = false; 1687db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman break; 1688db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman } 1689db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman // If there are no uses, including partial uses, the def is dead. 1690db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman if (Dead) MO.setIsDead(); 1691db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman } 1692db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman} 1693db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman 169467eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Chengunsigned 169567eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan ChengMachineInstrExpressionTrait::getHashValue(const MachineInstr* const &MI) { 169667eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Cheng unsigned Hash = MI->getOpcode() * 37; 169767eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Cheng for (unsigned i = 0, e = MI->getNumOperands(); i != e; ++i) { 169867eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Cheng const MachineOperand &MO = MI->getOperand(i); 169967eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Cheng uint64_t Key = (uint64_t)MO.getType() << 32; 170067eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Cheng switch (MO.getType()) { 170172aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner default: break; 170272aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner case MachineOperand::MO_Register: 1703c9df025e33ac435adb3b3318d237c36ca7cec659Jakob Stoklund Olesen if (MO.isDef() && TargetRegisterInfo::isVirtualRegister(MO.getReg())) 170472aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner continue; // Skip virtual register defs. 170572aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner Key |= MO.getReg(); 170672aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner break; 170772aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner case MachineOperand::MO_Immediate: 170872aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner Key |= MO.getImm(); 170972aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner break; 171072aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner case MachineOperand::MO_FrameIndex: 171172aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner case MachineOperand::MO_ConstantPoolIndex: 171272aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner case MachineOperand::MO_JumpTableIndex: 171372aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner Key |= MO.getIndex(); 171472aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner break; 171572aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner case MachineOperand::MO_MachineBasicBlock: 171672aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner Key |= DenseMapInfo<void*>::getHashValue(MO.getMBB()); 171772aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner break; 171872aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner case MachineOperand::MO_GlobalAddress: 171972aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner Key |= DenseMapInfo<void*>::getHashValue(MO.getGlobal()); 172072aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner break; 172172aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner case MachineOperand::MO_BlockAddress: 172272aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner Key |= DenseMapInfo<void*>::getHashValue(MO.getBlockAddress()); 172372aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner break; 172472aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner case MachineOperand::MO_MCSymbol: 172572aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner Key |= DenseMapInfo<void*>::getHashValue(MO.getMCSymbol()); 172672aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner break; 172767eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Cheng } 172867eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Cheng Key += ~(Key << 32); 172967eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Cheng Key ^= (Key >> 22); 173067eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Cheng Key += ~(Key << 13); 173167eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Cheng Key ^= (Key >> 8); 173267eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Cheng Key += (Key << 3); 173367eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Cheng Key ^= (Key >> 15); 173467eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Cheng Key += ~(Key << 27); 173567eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Cheng Key ^= (Key >> 31); 173667eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Cheng Hash = (unsigned)Key + Hash * 37; 173767eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Cheng } 173867eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Cheng return Hash; 173967eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Cheng} 1740d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen 1741d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesenvoid MachineInstr::emitError(StringRef Msg) const { 1742d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen // Find the source location cookie. 1743d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen unsigned LocCookie = 0; 1744d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen const MDNode *LocMD = 0; 1745d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen for (unsigned i = getNumOperands(); i != 0; --i) { 1746d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen if (getOperand(i-1).isMetadata() && 1747d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen (LocMD = getOperand(i-1).getMetadata()) && 1748d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen LocMD->getNumOperands() != 0) { 1749d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen if (const ConstantInt *CI = dyn_cast<ConstantInt>(LocMD->getOperand(0))) { 1750d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen LocCookie = CI->getZExtValue(); 1751d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen break; 1752d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen } 1753d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen } 1754d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen } 1755d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen 1756d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen if (const MachineBasicBlock *MBB = getParent()) 1757d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen if (const MachineFunction *MF = MBB->getParent()) 1758d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen return MF->getMMI().getModule()->getContext().emitError(LocCookie, Msg); 1759d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen report_fatal_error(Msg); 1760d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen} 1761