MachineInstr.cpp revision 9dfaacb696d1ad850f9f5f49a94fdb81cf8ae018
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() 467cc84cda91997bf6fc93512a56c3a12eecaaa2d88Jakob Stoklund Olesen : MCID(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) 487cc84cda91997bf6fc93512a56c3a12eecaaa2d88Jakob Stoklund Olesen : MCID(&tid), Flags(0), AsmPrinterFlags(0), 488a4f2bb08de92ccec21cbb3d0a9518384b0173660Chris Lattner MemRefs(0), MemRefsEnd(0), Parent(0) { 489cc84cda91997bf6fc93512a56c3a12eecaaa2d88Jakob Stoklund Olesen unsigned NumImplicitOps = 0; 4901793ab9e70c48146a5f1592b84b2b93e38c67fa4Bob Wilson if (!NoImp) 491e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng NumImplicitOps = MCID->getNumImplicitDefs() + MCID->getNumImplicitUses(); 492e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng Operands.reserve(NumImplicitOps + MCID->getNumOperands()); 493fa9457276a2174aaf302240dd32d89900ad021aeEvan Cheng if (!NoImp) 494fa9457276a2174aaf302240dd32d89900ad021aeEvan Cheng addImplicitDefUseOperands(); 4952c3f7ae3843bdc9dcfe85393e178211976c1f9bdDan Gohman // Make sure that we get added to a machine basicblock 4962c3f7ae3843bdc9dcfe85393e178211976c1f9bdDan Gohman LeakDetector::addGarbageObject(this); 497d7de496b23fca8145f777a56281457bf64e8bbadEvan Cheng} 498d7de496b23fca8145f777a56281457bf64e8bbadEvan Cheng 49906efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen/// MachineInstr ctor - As above, but with a DebugLoc. 500e837dead3c8dc3445ef6a0e2322179c57e264a13Evan ChengMachineInstr::MachineInstr(const MCInstrDesc &tid, const DebugLoc dl, 50106efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen bool NoImp) 502cc84cda91997bf6fc93512a56c3a12eecaaa2d88Jakob Stoklund Olesen : MCID(&tid), Flags(0), AsmPrinterFlags(0), 5036dd97471c43805b3febf598d50498a09a02e93f4Anton Korobeynikov MemRefs(0), MemRefsEnd(0), Parent(0), debugLoc(dl) { 504cc84cda91997bf6fc93512a56c3a12eecaaa2d88Jakob Stoklund Olesen unsigned NumImplicitOps = 0; 5051793ab9e70c48146a5f1592b84b2b93e38c67fa4Bob Wilson if (!NoImp) 506e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng NumImplicitOps = MCID->getNumImplicitDefs() + MCID->getNumImplicitUses(); 507e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng Operands.reserve(NumImplicitOps + MCID->getNumOperands()); 50806efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen if (!NoImp) 50906efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen addImplicitDefUseOperands(); 51006efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen // Make sure that we get added to a machine basicblock 51106efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen LeakDetector::addGarbageObject(this); 51206efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen} 51306efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen 51406efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen/// MachineInstr ctor - Work exactly the same as the ctor two above, except 515ee61d67c2f1105e23b2ea5110389f3b7b713b504Jim Grosbach/// that the MachineInstr is created and added to the end of the specified 51606efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen/// basic block. 517e837dead3c8dc3445ef6a0e2322179c57e264a13Evan ChengMachineInstr::MachineInstr(MachineBasicBlock *MBB, const MCInstrDesc &tid) 518cc84cda91997bf6fc93512a56c3a12eecaaa2d88Jakob Stoklund Olesen : MCID(&tid), Flags(0), AsmPrinterFlags(0), 519a4f2bb08de92ccec21cbb3d0a9518384b0173660Chris Lattner MemRefs(0), MemRefsEnd(0), Parent(0) { 52006efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen assert(MBB && "Cannot use inserting ctor with null basic block!"); 521cc84cda91997bf6fc93512a56c3a12eecaaa2d88Jakob Stoklund Olesen unsigned NumImplicitOps = 522cc84cda91997bf6fc93512a56c3a12eecaaa2d88Jakob Stoklund Olesen MCID->getNumImplicitDefs() + MCID->getNumImplicitUses(); 523e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng Operands.reserve(NumImplicitOps + MCID->getNumOperands()); 52406efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen addImplicitDefUseOperands(); 52506efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen // Make sure that we get added to a machine basicblock 52606efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen LeakDetector::addGarbageObject(this); 52706efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen MBB->push_back(this); // Add instruction to end of basic block! 52806efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen} 52906efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen 53006efc02854a96a9f92edc3bf46b0451f488cf2e6Dale Johannesen/// MachineInstr ctor - As above, but with a DebugLoc. 531ddd7fcb887be752ec8167276a697994ad9cb9c4eChris Lattner/// 53206efc02854a96a9f92edc3bf46b0451f488cf2e6Dale JohannesenMachineInstr::MachineInstr(MachineBasicBlock *MBB, const DebugLoc dl, 533e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng const MCInstrDesc &tid) 534cc84cda91997bf6fc93512a56c3a12eecaaa2d88Jakob Stoklund Olesen : MCID(&tid), Flags(0), AsmPrinterFlags(0), 5356dd97471c43805b3febf598d50498a09a02e93f4Anton Korobeynikov MemRefs(0), MemRefsEnd(0), Parent(0), debugLoc(dl) { 536ddd7fcb887be752ec8167276a697994ad9cb9c4eChris Lattner assert(MBB && "Cannot use inserting ctor with null basic block!"); 537cc84cda91997bf6fc93512a56c3a12eecaaa2d88Jakob Stoklund Olesen unsigned NumImplicitOps = 538cc84cda91997bf6fc93512a56c3a12eecaaa2d88Jakob Stoklund Olesen MCID->getNumImplicitDefs() + MCID->getNumImplicitUses(); 539e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng Operands.reserve(NumImplicitOps + MCID->getNumOperands()); 54067f660cb080965ea93ed6d7265a67100f2fe38e4Evan Cheng addImplicitDefUseOperands(); 5412c3f7ae3843bdc9dcfe85393e178211976c1f9bdDan Gohman // Make sure that we get added to a machine basicblock 5422c3f7ae3843bdc9dcfe85393e178211976c1f9bdDan Gohman LeakDetector::addGarbageObject(this); 543ddd7fcb887be752ec8167276a697994ad9cb9c4eChris Lattner MBB->push_back(this); // Add instruction to end of basic block! 544ddd7fcb887be752ec8167276a697994ad9cb9c4eChris Lattner} 545ddd7fcb887be752ec8167276a697994ad9cb9c4eChris Lattner 546ce22e76996d3ff0930716fa60c29df60a7e0481bMisha Brukman/// MachineInstr ctor - Copies MachineInstr arg exactly 547ce22e76996d3ff0930716fa60c29df60a7e0481bMisha Brukman/// 5481ed9922794cda9dbe295e74674b909287e544632Evan ChengMachineInstr::MachineInstr(MachineFunction &MF, const MachineInstr &MI) 549cc84cda91997bf6fc93512a56c3a12eecaaa2d88Jakob Stoklund Olesen : MCID(&MI.getDesc()), Flags(0), AsmPrinterFlags(0), 550c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman MemRefs(MI.MemRefs), MemRefsEnd(MI.MemRefsEnd), 551c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman Parent(0), debugLoc(MI.getDebugLoc()) { 552943b5e117fe9a087f9aa529a2632c2d32cc22374Chris Lattner Operands.reserve(MI.getNumOperands()); 553b5159ed0cb7943e5938782f7693beb18342165ceTanya Lattner 554ce22e76996d3ff0930716fa60c29df60a7e0481bMisha Brukman // Add operands 5551ed9922794cda9dbe295e74674b909287e544632Evan Cheng for (unsigned i = 0; i != MI.getNumOperands(); ++i) 5561ed9922794cda9dbe295e74674b909287e544632Evan Cheng addOperand(MI.getOperand(i)); 5570c63e03e04d3982e1913479bba404c3debc9a27eTanya Lattner 5586dd97471c43805b3febf598d50498a09a02e93f4Anton Korobeynikov // Copy all the flags. 5596dd97471c43805b3febf598d50498a09a02e93f4Anton Korobeynikov Flags = MI.Flags; 5606dd97471c43805b3febf598d50498a09a02e93f4Anton Korobeynikov 5618e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman // Set parent to null. 562f20c1a497fe3922ac718429d65a5fe396890575eChris Lattner Parent = 0; 5636116a73da420d9b414a34ce2599dc7f6476e23fcDan Gohman 5646116a73da420d9b414a34ce2599dc7f6476e23fcDan Gohman LeakDetector::addGarbageObject(this); 565466b534a570f574ed485d875bbca8454f68dcb52Tanya Lattner} 566466b534a570f574ed485d875bbca8454f68dcb52Tanya Lattner 567ce22e76996d3ff0930716fa60c29df60a7e0481bMisha BrukmanMachineInstr::~MachineInstr() { 5682c3f7ae3843bdc9dcfe85393e178211976c1f9bdDan Gohman LeakDetector::removeGarbageObject(this); 569e12d6abfdfc5141b2001f0c369a0e1525315b9c0Chris Lattner#ifndef NDEBUG 57062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner for (unsigned i = 0, e = Operands.size(); i != e; ++i) { 571e12d6abfdfc5141b2001f0c369a0e1525315b9c0Chris Lattner assert(Operands[i].ParentMI == this && "ParentMI mismatch!"); 572d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman assert((!Operands[i].isReg() || !Operands[i].isOnRegUseList()) && 57362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner "Reg operand def/use list corrupted"); 57462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 575e12d6abfdfc5141b2001f0c369a0e1525315b9c0Chris Lattner#endif 576aad5c0505183a5b7913f1a443a1f0650122551ccAlkis Evlogimenos} 577aad5c0505183a5b7913f1a443a1f0650122551ccAlkis Evlogimenos 57862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// getRegInfo - If this instruction is embedded into a MachineFunction, 57962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// return the MachineRegisterInfo object for the current function, otherwise 58062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// return null. 58162ed6b9ade63bf01717ce5274fa11e93e873d245Chris LattnerMachineRegisterInfo *MachineInstr::getRegInfo() { 58262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (MachineBasicBlock *MBB = getParent()) 5834e526b9a5b36d9bac170c03df0a5d6fb76740ae2Dan Gohman return &MBB->getParent()->getRegInfo(); 58462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner return 0; 58562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner} 58662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 58762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// RemoveRegOperandsFromUseLists - Unlink all of the register operands in 58862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// this instruction from their respective use lists. This requires that the 58962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// operands already be on their use lists. 59062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattnervoid MachineInstr::RemoveRegOperandsFromUseLists() { 59162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner for (unsigned i = 0, e = Operands.size(); i != e; ++i) { 592d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (Operands[i].isReg()) 59362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands[i].RemoveRegOperandFromRegInfo(); 59462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 59562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner} 59662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 59762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// AddRegOperandsToUseLists - Add all of the register operands in 59862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// this instruction from their respective use lists. This requires that the 59962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// operands not be on their use lists yet. 60062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattnervoid MachineInstr::AddRegOperandsToUseLists(MachineRegisterInfo &RegInfo) { 60162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner for (unsigned i = 0, e = Operands.size(); i != e; ++i) { 602d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (Operands[i].isReg()) 60362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands[i].AddRegOperandToRegInfo(&RegInfo); 60462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 60562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner} 60662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 60762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 60862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// addOperand - Add the specified operand to the instruction. If it is an 60962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// implicit operand, it is added to the end of the operand list. If it is 61062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// an explicit operand it is added at the end of the explicit operand list 611ee61d67c2f1105e23b2ea5110389f3b7b713b504Jim Grosbach/// (before the first implicit operand). 61262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattnervoid MachineInstr::addOperand(const MachineOperand &Op) { 6133627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen assert(MCID && "Cannot add operands before providing an instr descriptor"); 614d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman bool isImpReg = Op.isReg() && Op.isImplicit(); 615bcf28c08b3f0a3c4aa1be8f1485f6452d9a2b690Dan Gohman MachineRegisterInfo *RegInfo = getRegInfo(); 616bcf28c08b3f0a3c4aa1be8f1485f6452d9a2b690Dan Gohman 6173627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen // If the Operands backing store is reallocated, all register operands must 6183627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen // be removed and re-added to RegInfo. It is storing pointers to operands. 6193627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen bool Reallocate = RegInfo && 6203627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen !Operands.empty() && Operands.size() == Operands.capacity(); 6213627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen 6223627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen // Find the insert location for the new operand. Implicit registers go at 6233627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen // the end, everything goes before the implicit regs. 6243627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen unsigned OpNo = Operands.size(); 6253627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen 6263627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen // Remove all the implicit operands from RegInfo if they need to be shifted. 6273627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen // FIXME: Allow mixed explicit and implicit operands on inline asm. 6283627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen // InstrEmitter::EmitSpecialNode() is marking inline asm clobbers as 6293627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen // implicit-defs, but they must not be moved around. See the FIXME in 6303627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen // InstrEmitter.cpp. 6313627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen if (!isImpReg && !isInlineAsm()) { 6323627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen while (OpNo && Operands[OpNo-1].isReg() && Operands[OpNo-1].isImplicit()) { 6333627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen --OpNo; 6343627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen if (RegInfo) 6353627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen Operands[OpNo].RemoveRegOperandFromRegInfo(); 63662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 63762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 638ee61d67c2f1105e23b2ea5110389f3b7b713b504Jim Grosbach 6393627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen // OpNo now points as the desired insertion point. Unless this is a variadic 6403627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen // instruction, only implicit regs are allowed beyond MCID->getNumOperands(). 6413627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen assert((isImpReg || MCID->isVariadic() || OpNo < MCID->getNumOperands()) && 6423627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen "Trying to add an operand to a machine instr that is already done!"); 64362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 6443627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen // All operands from OpNo have been removed from RegInfo. If the Operands 6453627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen // backing store needs to be reallocated, we also need to remove any other 6463627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen // register operands. 6473627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen if (Reallocate) 6483627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen for (unsigned i = 0; i != OpNo; ++i) 6493627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen if (Operands[i].isReg()) 6503627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen Operands[i].RemoveRegOperandFromRegInfo(); 651ee61d67c2f1105e23b2ea5110389f3b7b713b504Jim Grosbach 6523627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen // Insert the new operand at OpNo. 6533627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen Operands.insert(Operands.begin() + OpNo, Op); 6543627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen Operands[OpNo].ParentMI = this; 655ee61d67c2f1105e23b2ea5110389f3b7b713b504Jim Grosbach 6563627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen // The Operands backing store has now been reallocated, so we can re-add the 6573627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen // operands before OpNo. 6583627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen if (Reallocate) 6593627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen for (unsigned i = 0; i != OpNo; ++i) 6603627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen if (Operands[i].isReg()) 6613627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen Operands[i].AddRegOperandToRegInfo(RegInfo); 66262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 6633627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen // When adding a register operand, tell RegInfo about it. 6643627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen if (Operands[OpNo].isReg()) { 6653627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen // Add the new operand to RegInfo, even when RegInfo is NULL. 6663627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen // This will initialize the linked list pointers. 6673627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen Operands[OpNo].AddRegOperandToRegInfo(RegInfo); 6683627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen // If the register operand is flagged as early, mark the operand as such. 6693627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen if (MCID->getOperandConstraint(OpNo, MCOI::EARLY_CLOBBER) != -1) 6703627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen Operands[OpNo].setIsEarlyClobber(true); 6713627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen } 672ee61d67c2f1105e23b2ea5110389f3b7b713b504Jim Grosbach 6733627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen // Re-add all the implicit ops. 6743627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen if (RegInfo) { 6753627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen for (unsigned i = OpNo + 1, e = Operands.size(); i != e; ++i) { 676d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman assert(Operands[i].isReg() && "Should only be an implicit reg!"); 67762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands[i].AddRegOperandToRegInfo(RegInfo); 67862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 67962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 68062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner} 68162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 68262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// RemoveOperand - Erase an operand from an instruction, leaving it with one 68362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// fewer operand than it started with. 68462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner/// 68562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattnervoid MachineInstr::RemoveOperand(unsigned OpNo) { 68662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner assert(OpNo < Operands.size() && "Invalid operand number"); 687ee61d67c2f1105e23b2ea5110389f3b7b713b504Jim Grosbach 68862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Special case removing the last one. 68962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (OpNo == Operands.size()-1) { 69062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // If needed, remove from the reg def/use list. 691d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (Operands.back().isReg() && Operands.back().isOnRegUseList()) 69262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands.back().RemoveRegOperandFromRegInfo(); 693ee61d67c2f1105e23b2ea5110389f3b7b713b504Jim Grosbach 69462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands.pop_back(); 69562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner return; 69662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 69762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 69862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // Otherwise, we are removing an interior operand. If we have reginfo to 69962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // update, remove all operands that will be shifted down from their reg lists, 70062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner // move everything down, then re-add them. 70162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner MachineRegisterInfo *RegInfo = getRegInfo(); 70262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (RegInfo) { 70362ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner for (unsigned i = OpNo, e = Operands.size(); i != e; ++i) { 704d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (Operands[i].isReg()) 70562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands[i].RemoveRegOperandFromRegInfo(); 70662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 70762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 708ee61d67c2f1105e23b2ea5110389f3b7b713b504Jim Grosbach 70962ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands.erase(Operands.begin()+OpNo); 71062ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 71162ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner if (RegInfo) { 71262ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner for (unsigned i = OpNo, e = Operands.size(); i != e; ++i) { 713d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (Operands[i].isReg()) 71462ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner Operands[i].AddRegOperandToRegInfo(RegInfo); 71562ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 71662ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner } 71762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner} 71862ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 719c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman/// addMemOperand - Add a MachineMemOperand to the machine instruction. 720c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman/// This function should be used only occasionally. The setMemRefs function 721c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman/// is the primary method for setting up a MachineInstr's MemRefs list. 7228e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohmanvoid MachineInstr::addMemOperand(MachineFunction &MF, 723c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman MachineMemOperand *MO) { 724c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman mmo_iterator OldMemRefs = MemRefs; 725c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman mmo_iterator OldMemRefsEnd = MemRefsEnd; 7268e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman 727c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman size_t NewNum = (MemRefsEnd - MemRefs) + 1; 728c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman mmo_iterator NewMemRefs = MF.allocateMemRefsArray(NewNum); 729c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman mmo_iterator NewMemRefsEnd = NewMemRefs + NewNum; 7308e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman 731c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman std::copy(OldMemRefs, OldMemRefsEnd, NewMemRefs); 732c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman NewMemRefs[NewNum - 1] = MO; 733c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman 734c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman MemRefs = NewMemRefs; 735c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman MemRefsEnd = NewMemRefsEnd; 736c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman} 73762ed6b9ade63bf01717ce5274fa11e93e873d245Chris Lattner 738506049f29f4f202a8e45feb916cc0264440a7f6dEvan Chengbool MachineInstr::isIdenticalTo(const MachineInstr *Other, 739506049f29f4f202a8e45feb916cc0264440a7f6dEvan Cheng MICheckType Check) const { 74034cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng // If opcodes or number of operands are not the same then the two 74134cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng // instructions are obviously not identical. 74234cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng if (Other->getOpcode() != getOpcode() || 74334cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng Other->getNumOperands() != getNumOperands()) 74434cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng return false; 74534cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng 74634cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng // Check operands to make sure they match. 74734cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 74834cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng const MachineOperand &MO = getOperand(i); 74934cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng const MachineOperand &OMO = Other->getOperand(i); 750cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng if (!MO.isReg()) { 751cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng if (!MO.isIdenticalTo(OMO)) 752cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng return false; 753cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng continue; 754cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng } 755cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng 75634cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng // Clients may or may not want to ignore defs when testing for equality. 75734cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng // For example, machine CSE pass only cares about finding common 75834cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng // subexpressions, so it's safe to ignore virtual register defs. 759cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng if (MO.isDef()) { 76034cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng if (Check == IgnoreDefs) 76134cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng continue; 762cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng else if (Check == IgnoreVRegDefs) { 763cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng if (TargetRegisterInfo::isPhysicalRegister(MO.getReg()) || 764cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng TargetRegisterInfo::isPhysicalRegister(OMO.getReg())) 765cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng if (MO.getReg() != OMO.getReg()) 766cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng return false; 767cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng } else { 768cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng if (!MO.isIdenticalTo(OMO)) 769cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng return false; 770cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng if (Check == CheckKillDead && MO.isDead() != OMO.isDead()) 77134cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng return false; 772cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng } 773cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng } else { 774cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng if (!MO.isIdenticalTo(OMO)) 775cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng return false; 776cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng if (Check == CheckKillDead && MO.isKill() != OMO.isKill()) 777cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng return false; 778cbc988be22bc9411d95215c8b7251b5f85710674Evan Cheng } 77934cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng } 7809194c6716be13e2b8d2cf8e45273bf6c79f8b32cDevang Patel // If DebugLoc does not match then two dbg.values are not identical. 7819194c6716be13e2b8d2cf8e45273bf6c79f8b32cDevang Patel if (isDebugValue()) 7829194c6716be13e2b8d2cf8e45273bf6c79f8b32cDevang Patel if (!getDebugLoc().isUnknown() && !Other->getDebugLoc().isUnknown() 7839194c6716be13e2b8d2cf8e45273bf6c79f8b32cDevang Patel && getDebugLoc() != Other->getDebugLoc()) 7849194c6716be13e2b8d2cf8e45273bf6c79f8b32cDevang Patel return false; 78534cdf6edf55d22832dee34fe6a39f1e10691ab51Evan Cheng return true; 786506049f29f4f202a8e45feb916cc0264440a7f6dEvan Cheng} 787506049f29f4f202a8e45feb916cc0264440a7f6dEvan Cheng 78848d7c069c76882475c23de153bda9483cd3c9bb4Chris Lattner/// removeFromParent - This method unlinks 'this' from the containing basic 78948d7c069c76882475c23de153bda9483cd3c9bb4Chris Lattner/// block, and returns it, but does not delete it. 79048d7c069c76882475c23de153bda9483cd3c9bb4Chris LattnerMachineInstr *MachineInstr::removeFromParent() { 79148d7c069c76882475c23de153bda9483cd3c9bb4Chris Lattner assert(getParent() && "Not embedded in a basic block!"); 79248d7c069c76882475c23de153bda9483cd3c9bb4Chris Lattner getParent()->remove(this); 79348d7c069c76882475c23de153bda9483cd3c9bb4Chris Lattner return this; 79448d7c069c76882475c23de153bda9483cd3c9bb4Chris Lattner} 79548d7c069c76882475c23de153bda9483cd3c9bb4Chris Lattner 79648d7c069c76882475c23de153bda9483cd3c9bb4Chris Lattner 7978e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman/// eraseFromParent - This method unlinks 'this' from the containing basic 7988e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman/// block, and deletes it. 7998e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohmanvoid MachineInstr::eraseFromParent() { 8008e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman assert(getParent() && "Not embedded in a basic block!"); 8018e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman getParent()->erase(this); 8028e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman} 8038e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman 8048e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman 80519e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng/// getNumExplicitOperands - Returns the number of non-implicit operands. 80619e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng/// 80719e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Chengunsigned MachineInstr::getNumExplicitOperands() const { 808e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng unsigned NumOperands = MCID->getNumOperands(); 809e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng if (!MCID->isVariadic()) 81019e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng return NumOperands; 81119e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng 8129407cd4ede3e2c090b958778d0fdbdac8b2dbec4Dan Gohman for (unsigned i = NumOperands, e = getNumOperands(); i != e; ++i) { 8139407cd4ede3e2c090b958778d0fdbdac8b2dbec4Dan Gohman const MachineOperand &MO = getOperand(i); 814d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (!MO.isReg() || !MO.isImplicit()) 81519e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng NumOperands++; 81619e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng } 81719e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng return NumOperands; 81819e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng} 81919e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng 820c36b7069b42bece963b7e6adf020353ce990ef76Evan Chengbool MachineInstr::isStackAligningInlineAsm() const { 821c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng if (isInlineAsm()) { 822c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng unsigned ExtraInfo = getOperand(InlineAsm::MIOp_ExtraInfo).getImm(); 823c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng if (ExtraInfo & InlineAsm::Extra_IsAlignStack) 824c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng return true; 825c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng } 826c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng return false; 827c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng} 8288ace2cd034be10c09be51daf08c3dda327f54262Chris Lattner 8299dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesenint MachineInstr::findInlineAsmFlagIdx(unsigned OpIdx, 8309dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen unsigned *GroupNo) const { 8319dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen assert(isInlineAsm() && "Expected an inline asm instruction"); 8329dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen assert(OpIdx < getNumOperands() && "OpIdx out of range"); 8339dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen 8349dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen // Ignore queries about the initial operands. 8359dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen if (OpIdx < InlineAsm::MIOp_FirstOperand) 8369dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen return -1; 8379dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen 8389dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen unsigned Group = 0; 8399dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen unsigned NumOps; 8409dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen for (unsigned i = InlineAsm::MIOp_FirstOperand, e = getNumOperands(); i < e; 8419dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen i += NumOps) { 8429dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen const MachineOperand &FlagMO = getOperand(i); 8439dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen // If we reach the implicit register operands, stop looking. 8449dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen if (!FlagMO.isImm()) 8459dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen return -1; 8469dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen NumOps = 1 + InlineAsm::getNumOperandRegisters(FlagMO.getImm()); 8479dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen if (i + NumOps > OpIdx) { 8489dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen if (GroupNo) 8499dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen *GroupNo = Group; 8509dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen return i; 8519dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen } 8529dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen ++Group; 8539dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen } 8549dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen return -1; 8559dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen} 8569dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen 857faa510726f4b40aa4495e60e4d341c6467e3fb01Evan Cheng/// findRegisterUseOperandIdx() - Returns the MachineOperand that is a use of 858f9ca50e3dce88b2f9e2f2f0cac2d3ed78afda841Jim Grosbach/// the specific register or -1 if it is not found. It further tightens 85976d7e76c15c258ec4a71fd75a2a32bca3a5e5e27Evan Cheng/// the search criteria to a use that kills the register if isKill is true. 8606130f66eaae89f8878590796977678afa8448926Evan Chengint MachineInstr::findRegisterUseOperandIdx(unsigned Reg, bool isKill, 8616130f66eaae89f8878590796977678afa8448926Evan Cheng const TargetRegisterInfo *TRI) const { 862576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 863f277ee4be7edabb759a7f78138b693d72d0c263fEvan Cheng const MachineOperand &MO = getOperand(i); 864d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (!MO.isReg() || !MO.isUse()) 8656130f66eaae89f8878590796977678afa8448926Evan Cheng continue; 8666130f66eaae89f8878590796977678afa8448926Evan Cheng unsigned MOReg = MO.getReg(); 8676130f66eaae89f8878590796977678afa8448926Evan Cheng if (!MOReg) 8686130f66eaae89f8878590796977678afa8448926Evan Cheng continue; 8696130f66eaae89f8878590796977678afa8448926Evan Cheng if (MOReg == Reg || 8706130f66eaae89f8878590796977678afa8448926Evan Cheng (TRI && 8716130f66eaae89f8878590796977678afa8448926Evan Cheng TargetRegisterInfo::isPhysicalRegister(MOReg) && 8726130f66eaae89f8878590796977678afa8448926Evan Cheng TargetRegisterInfo::isPhysicalRegister(Reg) && 8736130f66eaae89f8878590796977678afa8448926Evan Cheng TRI->isSubRegister(MOReg, Reg))) 87476d7e76c15c258ec4a71fd75a2a32bca3a5e5e27Evan Cheng if (!isKill || MO.isKill()) 87532eb1f1ca4220d2f24916e587ad7e8574d7d82a1Evan Cheng return i; 876b371f457b0ea4a652a9f526ba4375c80ae542252Evan Cheng } 87732eb1f1ca4220d2f24916e587ad7e8574d7d82a1Evan Cheng return -1; 878b371f457b0ea4a652a9f526ba4375c80ae542252Evan Cheng} 8797ebc4d63db05ac214d36bc01b4d60adadaf923e5Jakob Stoklund Olesen 88018b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesen/// readsWritesVirtualRegister - Return a pair of bools (reads, writes) 88118b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesen/// indicating if this instruction reads or writes Reg. This also considers 88218b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesen/// partial defines. 88318b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesenstd::pair<bool,bool> 88418b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund OlesenMachineInstr::readsWritesVirtualRegister(unsigned Reg, 88518b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesen SmallVectorImpl<unsigned> *Ops) const { 88618b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesen bool PartDef = false; // Partial redefine. 88718b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesen bool FullDef = false; // Full define. 88818b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesen bool Use = false; 8897ebc4d63db05ac214d36bc01b4d60adadaf923e5Jakob Stoklund Olesen 8907ebc4d63db05ac214d36bc01b4d60adadaf923e5Jakob Stoklund Olesen for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 8917ebc4d63db05ac214d36bc01b4d60adadaf923e5Jakob Stoklund Olesen const MachineOperand &MO = getOperand(i); 8927ebc4d63db05ac214d36bc01b4d60adadaf923e5Jakob Stoklund Olesen if (!MO.isReg() || MO.getReg() != Reg) 8937ebc4d63db05ac214d36bc01b4d60adadaf923e5Jakob Stoklund Olesen continue; 89418b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesen if (Ops) 89518b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesen Ops->push_back(i); 8967ebc4d63db05ac214d36bc01b4d60adadaf923e5Jakob Stoklund Olesen if (MO.isUse()) 89718b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesen Use |= !MO.isUndef(); 898201f2463a72f88121a3a31e7386029e99d2d75daJakob Stoklund Olesen else if (MO.getSubReg() && !MO.isUndef()) 899201f2463a72f88121a3a31e7386029e99d2d75daJakob Stoklund Olesen // A partial <def,undef> doesn't count as reading the register. 9007ebc4d63db05ac214d36bc01b4d60adadaf923e5Jakob Stoklund Olesen PartDef = true; 9017ebc4d63db05ac214d36bc01b4d60adadaf923e5Jakob Stoklund Olesen else 9027ebc4d63db05ac214d36bc01b4d60adadaf923e5Jakob Stoklund Olesen FullDef = true; 9037ebc4d63db05ac214d36bc01b4d60adadaf923e5Jakob Stoklund Olesen } 90418b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesen // A partial redefine uses Reg unless there is also a full define. 90518b2c9d3bf5a6633535eaad8388f0353b14cbfb8Jakob Stoklund Olesen return std::make_pair(Use || (PartDef && !FullDef), PartDef || FullDef); 9067ebc4d63db05ac214d36bc01b4d60adadaf923e5Jakob Stoklund Olesen} 9077ebc4d63db05ac214d36bc01b4d60adadaf923e5Jakob Stoklund Olesen 9086130f66eaae89f8878590796977678afa8448926Evan Cheng/// findRegisterDefOperandIdx() - Returns the operand index that is a def of 909703bfe69092e8da79fbef2fc5ca07b805ad9f753Dan Gohman/// the specified register or -1 if it is not found. If isDead is true, defs 910703bfe69092e8da79fbef2fc5ca07b805ad9f753Dan Gohman/// that are not dead are skipped. If TargetRegisterInfo is non-null, then it 911703bfe69092e8da79fbef2fc5ca07b805ad9f753Dan Gohman/// also checks if there is a def of a super-register. 9121015ba7018c87f48cc7bb45a564eb4a27241e76aEvan Chengint 9131015ba7018c87f48cc7bb45a564eb4a27241e76aEvan ChengMachineInstr::findRegisterDefOperandIdx(unsigned Reg, bool isDead, bool Overlap, 9141015ba7018c87f48cc7bb45a564eb4a27241e76aEvan Cheng const TargetRegisterInfo *TRI) const { 9151015ba7018c87f48cc7bb45a564eb4a27241e76aEvan Cheng bool isPhys = TargetRegisterInfo::isPhysicalRegister(Reg); 916b371f457b0ea4a652a9f526ba4375c80ae542252Evan Cheng for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 9176130f66eaae89f8878590796977678afa8448926Evan Cheng const MachineOperand &MO = getOperand(i); 918d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (!MO.isReg() || !MO.isDef()) 9196130f66eaae89f8878590796977678afa8448926Evan Cheng continue; 9206130f66eaae89f8878590796977678afa8448926Evan Cheng unsigned MOReg = MO.getReg(); 9211015ba7018c87f48cc7bb45a564eb4a27241e76aEvan Cheng bool Found = (MOReg == Reg); 9221015ba7018c87f48cc7bb45a564eb4a27241e76aEvan Cheng if (!Found && TRI && isPhys && 9231015ba7018c87f48cc7bb45a564eb4a27241e76aEvan Cheng TargetRegisterInfo::isPhysicalRegister(MOReg)) { 9241015ba7018c87f48cc7bb45a564eb4a27241e76aEvan Cheng if (Overlap) 9251015ba7018c87f48cc7bb45a564eb4a27241e76aEvan Cheng Found = TRI->regsOverlap(MOReg, Reg); 9261015ba7018c87f48cc7bb45a564eb4a27241e76aEvan Cheng else 9271015ba7018c87f48cc7bb45a564eb4a27241e76aEvan Cheng Found = TRI->isSubRegister(MOReg, Reg); 9281015ba7018c87f48cc7bb45a564eb4a27241e76aEvan Cheng } 9291015ba7018c87f48cc7bb45a564eb4a27241e76aEvan Cheng if (Found && (!isDead || MO.isDead())) 9301015ba7018c87f48cc7bb45a564eb4a27241e76aEvan Cheng return i; 931576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng } 9326130f66eaae89f8878590796977678afa8448926Evan Cheng return -1; 933576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng} 93419e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng 935f277ee4be7edabb759a7f78138b693d72d0c263fEvan Cheng/// findFirstPredOperandIdx() - Find the index of the first operand in the 936f277ee4be7edabb759a7f78138b693d72d0c263fEvan Cheng/// operand list that is used to represent the predicate. It returns -1 if 937f277ee4be7edabb759a7f78138b693d72d0c263fEvan Cheng/// none is found. 938f277ee4be7edabb759a7f78138b693d72d0c263fEvan Chengint MachineInstr::findFirstPredOperandIdx() const { 939f8e1e3e729473b8b2b7ee6134b6417976af84d05Jim Grosbach // Don't call MCID.findFirstPredOperandIdx() because this variant 940f8e1e3e729473b8b2b7ee6134b6417976af84d05Jim Grosbach // is sometimes called on an instruction that's not yet complete, and 941f8e1e3e729473b8b2b7ee6134b6417976af84d05Jim Grosbach // so the number of operands is less than the MCID indicates. In 942f8e1e3e729473b8b2b7ee6134b6417976af84d05Jim Grosbach // particular, the PTX target does this. 943e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng const MCInstrDesc &MCID = getDesc(); 944e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng if (MCID.isPredicable()) { 94519e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng for (unsigned i = 0, e = getNumOperands(); i != e; ++i) 946e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng if (MCID.OpInfo[i].isPredicate()) 947f277ee4be7edabb759a7f78138b693d72d0c263fEvan Cheng return i; 94819e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng } 94919e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng 950f277ee4be7edabb759a7f78138b693d72d0c263fEvan Cheng return -1; 95119e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng} 952ee61d67c2f1105e23b2ea5110389f3b7b713b504Jim Grosbach 953d9df5017040489303acb57bdd8697ef0f8bafc08Bob Wilson/// isRegTiedToUseOperand - Given the index of a register def operand, 954d9df5017040489303acb57bdd8697ef0f8bafc08Bob Wilson/// check if the register def is tied to a source operand, due to either 955d9df5017040489303acb57bdd8697ef0f8bafc08Bob Wilson/// two-address elimination or inline assembly constraints. Returns the 956d9df5017040489303acb57bdd8697ef0f8bafc08Bob Wilson/// first tied use operand index by reference is UseOpIdx is not null. 957ce9be2cf5dc84865f6b819bd3f9be16944426268Jakob Stoklund Olesenbool MachineInstr:: 958ce9be2cf5dc84865f6b819bd3f9be16944426268Jakob Stoklund OlesenisRegTiedToUseOperand(unsigned DefOpIdx, unsigned *UseOpIdx) const { 959518bb53485df640d7b7e3f6b0544099020c42aa7Chris Lattner if (isInlineAsm()) { 960c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng assert(DefOpIdx > InlineAsm::MIOp_FirstOperand); 961d9df5017040489303acb57bdd8697ef0f8bafc08Bob Wilson const MachineOperand &MO = getOperand(DefOpIdx); 962c30aa7b3de0ce8c37e9630e8e7a73cb83c808c62Chris Lattner if (!MO.isReg() || !MO.isDef() || MO.getReg() == 0) 963fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng return false; 964ef5d070bbe55d7165fc84778ca7757c3cfeea491Evan Cheng // Determine the actual operand index that corresponds to this index. 965fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng unsigned DefNo = 0; 9669dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen int FlagIdx = findInlineAsmFlagIdx(DefOpIdx, &DefNo); 9679dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen if (FlagIdx < 0) 9689dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen return false; 9699dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen 9709dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen // Which part of the group is DefOpIdx? 9719dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen unsigned DefPart = DefOpIdx - (FlagIdx + 1); 9729dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen 973c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng for (unsigned i = InlineAsm::MIOp_FirstOperand, e = getNumOperands(); 974c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng i != e; ++i) { 975fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng const MachineOperand &FMO = getOperand(i); 976fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng if (!FMO.isImm()) 977fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng continue; 978fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng if (i+1 >= e || !getOperand(i+1).isReg() || !getOperand(i+1).isUse()) 979fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng continue; 980fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng unsigned Idx; 981ef5d070bbe55d7165fc84778ca7757c3cfeea491Evan Cheng if (InlineAsm::isUseOperandTiedToDef(FMO.getImm(), Idx) && 982d9df5017040489303acb57bdd8697ef0f8bafc08Bob Wilson Idx == DefNo) { 983d9df5017040489303acb57bdd8697ef0f8bafc08Bob Wilson if (UseOpIdx) 984ef5d070bbe55d7165fc84778ca7757c3cfeea491Evan Cheng *UseOpIdx = (unsigned)i + 1 + DefPart; 985fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng return true; 986d9df5017040489303acb57bdd8697ef0f8bafc08Bob Wilson } 987fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng } 988ef5d070bbe55d7165fc84778ca7757c3cfeea491Evan Cheng return false; 989fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng } 990fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng 991d9df5017040489303acb57bdd8697ef0f8bafc08Bob Wilson assert(getOperand(DefOpIdx).isDef() && "DefOpIdx is not a def!"); 992e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng const MCInstrDesc &MCID = getDesc(); 993e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng for (unsigned i = 0, e = MCID.getNumOperands(); i != e; ++i) { 994ef0732d25a9882c947984ae3f2afbef5463ba00fEvan Cheng const MachineOperand &MO = getOperand(i); 9952ce7f2068f13566f5a70ee779e3bb83a6cb8d942Dan Gohman if (MO.isReg() && MO.isUse() && 996e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng MCID.getOperandConstraint(i, MCOI::TIED_TO) == (int)DefOpIdx) { 997d9df5017040489303acb57bdd8697ef0f8bafc08Bob Wilson if (UseOpIdx) 998d9df5017040489303acb57bdd8697ef0f8bafc08Bob Wilson *UseOpIdx = (unsigned)i; 999ef0732d25a9882c947984ae3f2afbef5463ba00fEvan Cheng return true; 1000d9df5017040489303acb57bdd8697ef0f8bafc08Bob Wilson } 100132dfbeada7292167bb488f36a71a5a6a519ddaffEvan Cheng } 100232dfbeada7292167bb488f36a71a5a6a519ddaffEvan Cheng return false; 100332dfbeada7292167bb488f36a71a5a6a519ddaffEvan Cheng} 100432dfbeada7292167bb488f36a71a5a6a519ddaffEvan Cheng 1005a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng/// isRegTiedToDefOperand - Return true if the operand of the specified index 1006a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng/// is a register use and it is tied to an def operand. It also returns the def 1007a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng/// operand index by reference. 1008ce9be2cf5dc84865f6b819bd3f9be16944426268Jakob Stoklund Olesenbool MachineInstr:: 1009ce9be2cf5dc84865f6b819bd3f9be16944426268Jakob Stoklund OlesenisRegTiedToDefOperand(unsigned UseOpIdx, unsigned *DefOpIdx) const { 1010518bb53485df640d7b7e3f6b0544099020c42aa7Chris Lattner if (isInlineAsm()) { 1011fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng const MachineOperand &MO = getOperand(UseOpIdx); 10120c8382ce9a96e36325b17d242fd1af16564d8a85Chris Lattner if (!MO.isReg() || !MO.isUse() || MO.getReg() == 0) 1013fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng return false; 101457e599a46b7b1321f9af02d1cecb4fa6b34f8a52Jakob Stoklund Olesen 101557e599a46b7b1321f9af02d1cecb4fa6b34f8a52Jakob Stoklund Olesen // Find the flag operand corresponding to UseOpIdx 10169dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen int FlagIdx = findInlineAsmFlagIdx(UseOpIdx); 10179dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen if (FlagIdx < 0) 1018ef5d070bbe55d7165fc84778ca7757c3cfeea491Evan Cheng return false; 10199dfaacb696d1ad850f9f5f49a94fdb81cf8ae018Jakob Stoklund Olesen 102057e599a46b7b1321f9af02d1cecb4fa6b34f8a52Jakob Stoklund Olesen const MachineOperand &UFMO = getOperand(FlagIdx); 1021fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng unsigned DefNo; 1022fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng if (InlineAsm::isUseOperandTiedToDef(UFMO.getImm(), DefNo)) { 1023fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng if (!DefOpIdx) 1024fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng return true; 1025fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng 1026c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng unsigned DefIdx = InlineAsm::MIOp_FirstOperand; 1027f1e309eb4862459a76445942ba4dafc433b6f317Dale Johannesen // Remember to adjust the index. First operand is asm string, second is 1028c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng // the HasSideEffects and AlignStack bits, then there is a flag for each. 1029fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng while (DefNo) { 1030fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng const MachineOperand &FMO = getOperand(DefIdx); 1031fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng assert(FMO.isImm()); 1032fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng // Skip over this def. 1033fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng DefIdx += InlineAsm::getNumOperandRegisters(FMO.getImm()) + 1; 1034fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng --DefNo; 1035fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng } 1036ef5d070bbe55d7165fc84778ca7757c3cfeea491Evan Cheng *DefOpIdx = DefIdx + UseOpIdx - FlagIdx; 1037fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng return true; 1038fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng } 1039fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng return false; 1040fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng } 1041fb11288109329cb736d9f49769581a0d0c23fe19Evan Cheng 1042e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng const MCInstrDesc &MCID = getDesc(); 1043e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng if (UseOpIdx >= MCID.getNumOperands()) 1044a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng return false; 1045a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng const MachineOperand &MO = getOperand(UseOpIdx); 1046a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng if (!MO.isReg() || !MO.isUse()) 1047a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng return false; 1048e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng int DefIdx = MCID.getOperandConstraint(UseOpIdx, MCOI::TIED_TO); 1049a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng if (DefIdx == -1) 1050a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng return false; 1051a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng if (DefOpIdx) 1052a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng *DefOpIdx = (unsigned)DefIdx; 1053a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng return true; 1054a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng} 1055a24752ff43dc1ad8c18c5d9e78549c45f62b980eEvan Cheng 1056e6cd757e6800b9b94a6459ec148c0624c4f2e3c1Dan Gohman/// clearKillInfo - Clears kill flags on all operands. 1057e6cd757e6800b9b94a6459ec148c0624c4f2e3c1Dan Gohman/// 1058e6cd757e6800b9b94a6459ec148c0624c4f2e3c1Dan Gohmanvoid MachineInstr::clearKillInfo() { 1059e6cd757e6800b9b94a6459ec148c0624c4f2e3c1Dan Gohman for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 1060e6cd757e6800b9b94a6459ec148c0624c4f2e3c1Dan Gohman MachineOperand &MO = getOperand(i); 1061e6cd757e6800b9b94a6459ec148c0624c4f2e3c1Dan Gohman if (MO.isReg() && MO.isUse()) 1062e6cd757e6800b9b94a6459ec148c0624c4f2e3c1Dan Gohman MO.setIsKill(false); 1063e6cd757e6800b9b94a6459ec148c0624c4f2e3c1Dan Gohman } 1064e6cd757e6800b9b94a6459ec148c0624c4f2e3c1Dan Gohman} 1065e6cd757e6800b9b94a6459ec148c0624c4f2e3c1Dan Gohman 1066576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng/// copyKillDeadInfo - Copies kill / dead operand properties from MI. 1067576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng/// 1068576d123e130a8291669dd2384a3735cc4933fd00Evan Chengvoid MachineInstr::copyKillDeadInfo(const MachineInstr *MI) { 1069576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng for (unsigned i = 0, e = MI->getNumOperands(); i != e; ++i) { 1070576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng const MachineOperand &MO = MI->getOperand(i); 1071d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (!MO.isReg() || (!MO.isKill() && !MO.isDead())) 1072576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng continue; 1073576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng for (unsigned j = 0, ee = getNumOperands(); j != ee; ++j) { 1074576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng MachineOperand &MOp = getOperand(j); 1075576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng if (!MOp.isIdenticalTo(MO)) 1076576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng continue; 1077576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng if (MO.isKill()) 1078576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng MOp.setIsKill(); 1079576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng else 1080576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng MOp.setIsDead(); 1081576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng break; 1082576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng } 1083576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng } 1084576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng} 1085576d123e130a8291669dd2384a3735cc4933fd00Evan Cheng 108619e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng/// copyPredicates - Copies predicate operand(s) from MI. 108719e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Chengvoid MachineInstr::copyPredicates(const MachineInstr *MI) { 1088e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng const MCInstrDesc &MCID = MI->getDesc(); 1089e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng if (!MCID.isPredicable()) 1090b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng return; 1091b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng for (unsigned i = 0, e = MI->getNumOperands(); i != e; ++i) { 1092e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng if (MCID.OpInfo[i].isPredicate()) { 1093b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng // Predicated operands must be last operands. 1094b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng addOperand(MI->getOperand(i)); 109519e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng } 109619e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng } 109719e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng} 109819e3f31f6acd9f5ce3cdd8372d4cb598ed921f95Evan Cheng 10999edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesenvoid MachineInstr::substituteRegister(unsigned FromReg, 11009edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen unsigned ToReg, 11019edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen unsigned SubIdx, 11029edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen const TargetRegisterInfo &RegInfo) { 11039edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen if (TargetRegisterInfo::isPhysicalRegister(ToReg)) { 11049edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen if (SubIdx) 11059edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen ToReg = RegInfo.getSubReg(ToReg, SubIdx); 11069edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 11079edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen MachineOperand &MO = getOperand(i); 11089edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen if (!MO.isReg() || MO.getReg() != FromReg) 11099edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen continue; 11109edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen MO.substPhysReg(ToReg, RegInfo); 11119edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen } 11129edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen } else { 11139edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 11149edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen MachineOperand &MO = getOperand(i); 11159edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen if (!MO.isReg() || MO.getReg() != FromReg) 11169edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen continue; 11179edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen MO.substVirtReg(ToReg, SubIdx, RegInfo); 11189edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen } 11199edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen } 11209edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen} 11219edf7deb37f0f97664f279040fa15d89f32e23d9Jakob Stoklund Olesen 11229f1c8317a4676945b4961ddb9827ef2412551620Evan Cheng/// isSafeToMove - Return true if it is safe to move this instruction. If 11239f1c8317a4676945b4961ddb9827ef2412551620Evan Cheng/// SawStore is set to true, it means that there is a store (or call) between 11249f1c8317a4676945b4961ddb9827ef2412551620Evan Cheng/// the instruction's location and its intended destination. 1125b3b930a011554fc7566dd4311af3862b01e5fd8fDan Gohmanbool MachineInstr::isSafeToMove(const TargetInstrInfo *TII, 1126ac1abde05b7e6956c01deb6557539bee8fea30f4Evan Cheng AliasAnalysis *AA, 1127ac1abde05b7e6956c01deb6557539bee8fea30f4Evan Cheng bool &SawStore) const { 1128b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng // Ignore stuff that we obviously can't move. 1129e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng if (MCID->mayStore() || MCID->isCall()) { 1130b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng SawStore = true; 1131b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng return false; 1132b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng } 113330a343aeedf777f9b8b6be9823da750afbf765b1Evan Cheng 113430a343aeedf777f9b8b6be9823da750afbf765b1Evan Cheng if (isLabel() || isDebugValue() || 1135e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng MCID->isTerminator() || hasUnmodeledSideEffects()) 1136b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng return false; 1137b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng 1138b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng // See if this instruction does a load. If so, we have to guarantee that the 1139b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng // loaded value doesn't change between the load and the its intended 1140b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng // destination. The check for isInvariantLoad gives the targe the chance to 1141b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng // classify the load as always returning a constant, e.g. a constant pool 1142b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng // load. 1143e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng if (MCID->mayLoad() && !isInvariantLoad(AA)) 1144b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng // Otherwise, this is a real load. If there is a store between the load and 11457cc2c406d0c82bcf329048ced643ec77fcae60e6Evan Cheng // end of block, or if the load is volatile, we can't move it. 1146d790a5ceee7138d8a5352432ccf862a42e3f5819Dan Gohman return !SawStore && !hasVolatileMemoryRef(); 11473e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman 1148b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng return true; 1149b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng} 1150b27087f5aa574f875598f4a309b7dd687c64a455Evan Cheng 1151df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng/// isSafeToReMat - Return true if it's safe to rematerialize the specified 1152df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng/// instruction which defined the specified register instead of copying it. 1153b3b930a011554fc7566dd4311af3862b01e5fd8fDan Gohmanbool MachineInstr::isSafeToReMat(const TargetInstrInfo *TII, 1154ac1abde05b7e6956c01deb6557539bee8fea30f4Evan Cheng AliasAnalysis *AA, 1155ac1abde05b7e6956c01deb6557539bee8fea30f4Evan Cheng unsigned DstReg) const { 1156df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng bool SawStore = false; 1157a70dca156fa76d452f54829b5c5f962ddfd94ef2Dan Gohman if (!TII->isTriviallyReMaterializable(this, AA) || 1158ac1abde05b7e6956c01deb6557539bee8fea30f4Evan Cheng !isSafeToMove(TII, AA, SawStore)) 1159df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng return false; 1160df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 1161cbad42cfd1cc93a41ff26ea2e8895bfbc09f54f2Dan Gohman const MachineOperand &MO = getOperand(i); 1162d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (!MO.isReg()) 1163df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng continue; 1164df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng // FIXME: For now, do not remat any instruction with register operands. 1165df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng // Later on, we can loosen the restriction is the register operands have 1166df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng // not been modified between the def and use. Note, this is different from 11678763c1c54413c9cd0b56e2860edb5856151a69fcEvan Cheng // MachineSink because the code is no longer in two-address form (at least 1168df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng // partially). 1169df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng if (MO.isUse()) 1170df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng return false; 1171df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng else if (!MO.isDead() && MO.getReg() != DstReg) 1172df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng return false; 1173df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng } 1174df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng return true; 1175df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng} 1176df3b99381f1c211071cc1daf0cc297666877bbcbEvan Cheng 11773e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman/// hasVolatileMemoryRef - Return true if this instruction may have a 11783e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman/// volatile memory reference, or if the information describing the 11793e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman/// memory reference is not available. Return false if it is known to 11803e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman/// have no volatile memory references. 11813e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohmanbool MachineInstr::hasVolatileMemoryRef() const { 11823e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman // An instruction known never to access memory won't have a volatile access. 1183e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng if (!MCID->mayStore() && 1184e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng !MCID->mayLoad() && 1185e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng !MCID->isCall() && 1186c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng !hasUnmodeledSideEffects()) 11873e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman return false; 11883e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman 11893e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman // Otherwise, if the instruction has no memory reference information, 11903e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman // conservatively assume it wasn't preserved. 11913e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman if (memoperands_empty()) 11923e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman return true; 1193ee61d67c2f1105e23b2ea5110389f3b7b713b504Jim Grosbach 11943e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman // Check the memory reference information for volatile references. 1195c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman for (mmo_iterator I = memoperands_begin(), E = memoperands_end(); I != E; ++I) 1196c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman if ((*I)->isVolatile()) 11973e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman return true; 11983e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman 11993e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman return false; 12003e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman} 12013e4fb70c6af53a2d00e057a7e4a8f93eb2ff2112Dan Gohman 1202e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman/// isInvariantLoad - Return true if this instruction is loading from a 1203e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman/// location whose value is invariant across the function. For example, 1204f451cb870efcf9e0302d25ed05f4cac6bb494e42Dan Gohman/// loading a value from the constant pool or from the argument area 1205e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman/// of a function if it does not change. This should only return true of 1206e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman/// *all* loads the instruction does are invariant (if it does multiple loads). 1207e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohmanbool MachineInstr::isInvariantLoad(AliasAnalysis *AA) const { 1208e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman // If the instruction doesn't load at all, it isn't an invariant load. 1209e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng if (!MCID->mayLoad()) 1210e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman return false; 1211e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman 1212e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman // If the instruction has lost its memoperands, conservatively assume that 1213e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman // it may not be an invariant load. 1214e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman if (memoperands_empty()) 1215e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman return false; 1216e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman 1217e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman const MachineFrameInfo *MFI = getParent()->getParent()->getFrameInfo(); 1218e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman 1219e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman for (mmo_iterator I = memoperands_begin(), 1220e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman E = memoperands_end(); I != E; ++I) { 1221e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman if ((*I)->isVolatile()) return false; 1222e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman if ((*I)->isStore()) return false; 1223e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman 1224e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman if (const Value *V = (*I)->getValue()) { 1225e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman // A load from a constant PseudoSourceValue is invariant. 1226e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman if (const PseudoSourceValue *PSV = dyn_cast<PseudoSourceValue>(V)) 1227e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman if (PSV->isConstant(MFI)) 1228e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman continue; 1229e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman // If we have an AliasAnalysis, ask it whether the memory is constant. 1230f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman if (AA && AA->pointsToConstantMemory( 1231f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman AliasAnalysis::Location(V, (*I)->getSize(), 1232f96e4bd2a3b11928af75fb7472288930d16fec0bDan Gohman (*I)->getTBAAInfo()))) 1233e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman continue; 1234e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman } 1235e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman 1236e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman // Otherwise assume conservatively. 1237e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman return false; 1238e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman } 1239e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman 1240e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman // Everything checks out. 1241e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman return true; 1242e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman} 1243e33f44cfc547359bc28526e4c5e1852b600b4448Dan Gohman 1244229694f0ee630ceabe96a8bd48952f6740f928b2Evan Cheng/// isConstantValuePHI - If the specified instruction is a PHI that always 1245229694f0ee630ceabe96a8bd48952f6740f928b2Evan Cheng/// merges together the same virtual register, return the register, otherwise 1246229694f0ee630ceabe96a8bd48952f6740f928b2Evan Cheng/// return 0. 1247229694f0ee630ceabe96a8bd48952f6740f928b2Evan Chengunsigned MachineInstr::isConstantValuePHI() const { 1248518bb53485df640d7b7e3f6b0544099020c42aa7Chris Lattner if (!isPHI()) 1249229694f0ee630ceabe96a8bd48952f6740f928b2Evan Cheng return 0; 1250d8f079c25e8bcaf4d10bfa9c3f6a38cd5ac84329Evan Cheng assert(getNumOperands() >= 3 && 1251d8f079c25e8bcaf4d10bfa9c3f6a38cd5ac84329Evan Cheng "It's illegal to have a PHI without source operands"); 1252229694f0ee630ceabe96a8bd48952f6740f928b2Evan Cheng 1253229694f0ee630ceabe96a8bd48952f6740f928b2Evan Cheng unsigned Reg = getOperand(1).getReg(); 1254229694f0ee630ceabe96a8bd48952f6740f928b2Evan Cheng for (unsigned i = 3, e = getNumOperands(); i < e; i += 2) 1255229694f0ee630ceabe96a8bd48952f6740f928b2Evan Cheng if (getOperand(i).getReg() != Reg) 1256229694f0ee630ceabe96a8bd48952f6740f928b2Evan Cheng return 0; 1257229694f0ee630ceabe96a8bd48952f6740f928b2Evan Cheng return Reg; 1258229694f0ee630ceabe96a8bd48952f6740f928b2Evan Cheng} 1259229694f0ee630ceabe96a8bd48952f6740f928b2Evan Cheng 1260c36b7069b42bece963b7e6adf020353ce990ef76Evan Chengbool MachineInstr::hasUnmodeledSideEffects() const { 1261c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng if (getDesc().hasUnmodeledSideEffects()) 1262c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng return true; 1263c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng if (isInlineAsm()) { 1264c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng unsigned ExtraInfo = getOperand(InlineAsm::MIOp_ExtraInfo).getImm(); 1265c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng if (ExtraInfo & InlineAsm::Extra_HasSideEffects) 1266c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng return true; 1267c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng } 1268c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng 1269c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng return false; 1270c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng} 1271c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng 1272a57fabe815ccf016eead526eb3ef475f116ab155Evan Cheng/// allDefsAreDead - Return true if all the defs of this instruction are dead. 1273a57fabe815ccf016eead526eb3ef475f116ab155Evan Cheng/// 1274a57fabe815ccf016eead526eb3ef475f116ab155Evan Chengbool MachineInstr::allDefsAreDead() const { 1275a57fabe815ccf016eead526eb3ef475f116ab155Evan Cheng for (unsigned i = 0, e = getNumOperands(); i < e; ++i) { 1276a57fabe815ccf016eead526eb3ef475f116ab155Evan Cheng const MachineOperand &MO = getOperand(i); 1277a57fabe815ccf016eead526eb3ef475f116ab155Evan Cheng if (!MO.isReg() || MO.isUse()) 1278a57fabe815ccf016eead526eb3ef475f116ab155Evan Cheng continue; 1279a57fabe815ccf016eead526eb3ef475f116ab155Evan Cheng if (!MO.isDead()) 1280a57fabe815ccf016eead526eb3ef475f116ab155Evan Cheng return false; 1281a57fabe815ccf016eead526eb3ef475f116ab155Evan Cheng } 1282a57fabe815ccf016eead526eb3ef475f116ab155Evan Cheng return true; 1283a57fabe815ccf016eead526eb3ef475f116ab155Evan Cheng} 1284a57fabe815ccf016eead526eb3ef475f116ab155Evan Cheng 1285c8f46c45a0bdefdb91593cabc87547cc45f9d89dEvan Cheng/// copyImplicitOps - Copy implicit register operands from specified 1286c8f46c45a0bdefdb91593cabc87547cc45f9d89dEvan Cheng/// instruction to this instruction. 1287c8f46c45a0bdefdb91593cabc87547cc45f9d89dEvan Chengvoid MachineInstr::copyImplicitOps(const MachineInstr *MI) { 1288c8f46c45a0bdefdb91593cabc87547cc45f9d89dEvan Cheng for (unsigned i = MI->getDesc().getNumOperands(), e = MI->getNumOperands(); 1289c8f46c45a0bdefdb91593cabc87547cc45f9d89dEvan Cheng i != e; ++i) { 1290c8f46c45a0bdefdb91593cabc87547cc45f9d89dEvan Cheng const MachineOperand &MO = MI->getOperand(i); 1291c8f46c45a0bdefdb91593cabc87547cc45f9d89dEvan Cheng if (MO.isReg() && MO.isImplicit()) 1292c8f46c45a0bdefdb91593cabc87547cc45f9d89dEvan Cheng addOperand(MO); 1293c8f46c45a0bdefdb91593cabc87547cc45f9d89dEvan Cheng } 1294c8f46c45a0bdefdb91593cabc87547cc45f9d89dEvan Cheng} 1295c8f46c45a0bdefdb91593cabc87547cc45f9d89dEvan Cheng 129621326fc2ad47ee7e73a8c0b03a4a0cc0b0a0c4e8Brian Gaekevoid MachineInstr::dump() const { 12973b325334102144ec39910563eabebde434504564David Greene dbgs() << " " << *this; 12985ca6bd14a00ba5310ce1a632d3a0cc8f8af31433Mon P Wang} 12995ca6bd14a00ba5310ce1a632d3a0cc8f8af31433Mon P Wang 1300ee61d67c2f1105e23b2ea5110389f3b7b713b504Jim Grosbachstatic void printDebugLoc(DebugLoc DL, const MachineFunction *MF, 1301da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel raw_ostream &CommentOS) { 1302da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel const LLVMContext &Ctx = MF->getFunction()->getContext(); 1303da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel if (!DL.isUnknown()) { // Print source line info. 1304da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel DIScope Scope(DL.getScope(Ctx)); 1305da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel // Omit the directory, because it's likely to be long and uninteresting. 1306da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel if (Scope.Verify()) 1307da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel CommentOS << Scope.getFilename(); 1308da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel else 1309da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel CommentOS << "<unknown>"; 1310da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel CommentOS << ':' << DL.getLine(); 1311da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel if (DL.getCol() != 0) 1312da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel CommentOS << ':' << DL.getCol(); 1313da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel DebugLoc InlinedAtDL = DebugLoc::getFromDILocation(DL.getInlinedAt(Ctx)); 1314da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel if (!InlinedAtDL.isUnknown()) { 1315da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel CommentOS << " @[ "; 1316da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel printDebugLoc(InlinedAtDL, MF, CommentOS); 1317da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel CommentOS << " ]"; 1318da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel } 1319da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel } 1320da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel} 1321da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel 13225ca6bd14a00ba5310ce1a632d3a0cc8f8af31433Mon P Wangvoid MachineInstr::print(raw_ostream &OS, const TargetMachine *TM) const { 132380f6c5898113806130975fd56d24929b06bf54f8Dan Gohman // We can be a bit tidier if we know the TargetMachine and/or MachineFunction. 132480f6c5898113806130975fd56d24929b06bf54f8Dan Gohman const MachineFunction *MF = 0; 1325a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen const MachineRegisterInfo *MRI = 0; 132680f6c5898113806130975fd56d24929b06bf54f8Dan Gohman if (const MachineBasicBlock *MBB = getParent()) { 132780f6c5898113806130975fd56d24929b06bf54f8Dan Gohman MF = MBB->getParent(); 132880f6c5898113806130975fd56d24929b06bf54f8Dan Gohman if (!TM && MF) 132980f6c5898113806130975fd56d24929b06bf54f8Dan Gohman TM = &MF->getTarget(); 1330a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen if (MF) 1331a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen MRI = &MF->getRegInfo(); 133280f6c5898113806130975fd56d24929b06bf54f8Dan Gohman } 13330ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman 1334a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen // Save a list of virtual registers. 1335a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen SmallVector<unsigned, 8> VirtRegs; 1336a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen 13370ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman // Print explicitly defined operands on the left of an assignment syntax. 133880f6c5898113806130975fd56d24929b06bf54f8Dan Gohman unsigned StartOp = 0, e = getNumOperands(); 13390ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman for (; StartOp < e && getOperand(StartOp).isReg() && 13400ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman getOperand(StartOp).isDef() && 13410ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman !getOperand(StartOp).isImplicit(); 13420ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman ++StartOp) { 13430ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman if (StartOp != 0) OS << ", "; 13440ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman getOperand(StartOp).print(OS, TM); 1345a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen unsigned Reg = getOperand(StartOp).getReg(); 1346c9df025e33ac435adb3b3318d237c36ca7cec659Jakob Stoklund Olesen if (TargetRegisterInfo::isVirtualRegister(Reg)) 1347a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen VirtRegs.push_back(Reg); 13486a592271fb2946a0704b06fd66199987cdd40b3cChris Lattner } 1349b140762a45d21aaed054f15adaff0fc2274d939dTanya Lattner 13500ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman if (StartOp != 0) 13510ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman OS << " = "; 13520ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman 13530ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman // Print the opcode name. 1354749c6f6b5ed301c84aac562e414486549d7b98ebChris Lattner OS << getDesc().getName(); 1355edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 13560ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman // Print the rest of the operands. 135780f6c5898113806130975fd56d24929b06bf54f8Dan Gohman bool OmittedAnyCallClobbers = false; 135880f6c5898113806130975fd56d24929b06bf54f8Dan Gohman bool FirstOp = true; 13597a2ecd3f99ae4dede7e8c1984c2a08984be69363Jakob Stoklund Olesen unsigned AsmDescOp = ~0u; 13607a2ecd3f99ae4dede7e8c1984c2a08984be69363Jakob Stoklund Olesen unsigned AsmOpCount = 0; 1361c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng 13623627a462938c92c00053a24828b35da5195d0d68Jakob Stoklund Olesen if (isInlineAsm() && e >= InlineAsm::MIOp_FirstOperand) { 1363c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng // Print asm string. 1364c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng OS << " "; 1365c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng getOperand(InlineAsm::MIOp_AsmString).print(OS, TM); 1366c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng 1367c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng // Print HasSideEffects, IsAlignStack 1368c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng unsigned ExtraInfo = getOperand(InlineAsm::MIOp_ExtraInfo).getImm(); 1369c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng if (ExtraInfo & InlineAsm::Extra_HasSideEffects) 1370c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng OS << " [sideeffect]"; 1371c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng if (ExtraInfo & InlineAsm::Extra_IsAlignStack) 1372c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng OS << " [alignstack]"; 1373c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng 13747a2ecd3f99ae4dede7e8c1984c2a08984be69363Jakob Stoklund Olesen StartOp = AsmDescOp = InlineAsm::MIOp_FirstOperand; 1375c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng FirstOp = false; 1376c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng } 1377c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng 1378c36b7069b42bece963b7e6adf020353ce990ef76Evan Cheng 13796a592271fb2946a0704b06fd66199987cdd40b3cChris Lattner for (unsigned i = StartOp, e = getNumOperands(); i != e; ++i) { 138080f6c5898113806130975fd56d24929b06bf54f8Dan Gohman const MachineOperand &MO = getOperand(i); 138180f6c5898113806130975fd56d24929b06bf54f8Dan Gohman 1382c9df025e33ac435adb3b3318d237c36ca7cec659Jakob Stoklund Olesen if (MO.isReg() && TargetRegisterInfo::isVirtualRegister(MO.getReg())) 1383a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen VirtRegs.push_back(MO.getReg()); 1384a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen 138580f6c5898113806130975fd56d24929b06bf54f8Dan Gohman // Omit call-clobbered registers which aren't used anywhere. This makes 138680f6c5898113806130975fd56d24929b06bf54f8Dan Gohman // call instructions much less noisy on targets where calls clobber lots 138780f6c5898113806130975fd56d24929b06bf54f8Dan Gohman // of registers. Don't rely on MO.isDead() because we may be called before 138880f6c5898113806130975fd56d24929b06bf54f8Dan Gohman // LiveVariables is run, or we may be looking at a non-allocatable reg. 138980f6c5898113806130975fd56d24929b06bf54f8Dan Gohman if (MF && getDesc().isCall() && 139080f6c5898113806130975fd56d24929b06bf54f8Dan Gohman MO.isReg() && MO.isImplicit() && MO.isDef()) { 139180f6c5898113806130975fd56d24929b06bf54f8Dan Gohman unsigned Reg = MO.getReg(); 1392c9df025e33ac435adb3b3318d237c36ca7cec659Jakob Stoklund Olesen if (TargetRegisterInfo::isPhysicalRegister(Reg)) { 139380f6c5898113806130975fd56d24929b06bf54f8Dan Gohman const MachineRegisterInfo &MRI = MF->getRegInfo(); 139480f6c5898113806130975fd56d24929b06bf54f8Dan Gohman if (MRI.use_empty(Reg) && !MRI.isLiveOut(Reg)) { 139580f6c5898113806130975fd56d24929b06bf54f8Dan Gohman bool HasAliasLive = false; 139680f6c5898113806130975fd56d24929b06bf54f8Dan Gohman for (const unsigned *Alias = TM->getRegisterInfo()->getAliasSet(Reg); 139780f6c5898113806130975fd56d24929b06bf54f8Dan Gohman unsigned AliasReg = *Alias; ++Alias) 139880f6c5898113806130975fd56d24929b06bf54f8Dan Gohman if (!MRI.use_empty(AliasReg) || MRI.isLiveOut(AliasReg)) { 139980f6c5898113806130975fd56d24929b06bf54f8Dan Gohman HasAliasLive = true; 140080f6c5898113806130975fd56d24929b06bf54f8Dan Gohman break; 140180f6c5898113806130975fd56d24929b06bf54f8Dan Gohman } 140280f6c5898113806130975fd56d24929b06bf54f8Dan Gohman if (!HasAliasLive) { 140380f6c5898113806130975fd56d24929b06bf54f8Dan Gohman OmittedAnyCallClobbers = true; 140480f6c5898113806130975fd56d24929b06bf54f8Dan Gohman continue; 140580f6c5898113806130975fd56d24929b06bf54f8Dan Gohman } 140680f6c5898113806130975fd56d24929b06bf54f8Dan Gohman } 140780f6c5898113806130975fd56d24929b06bf54f8Dan Gohman } 140880f6c5898113806130975fd56d24929b06bf54f8Dan Gohman } 140980f6c5898113806130975fd56d24929b06bf54f8Dan Gohman 141080f6c5898113806130975fd56d24929b06bf54f8Dan Gohman if (FirstOp) FirstOp = false; else OS << ","; 14116a592271fb2946a0704b06fd66199987cdd40b3cChris Lattner OS << " "; 1412b1bb4afbc7d801f9875be135c428b6f05511db5dJakob Stoklund Olesen if (i < getDesc().NumOperands) { 1413e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng const MCOperandInfo &MCOI = getDesc().OpInfo[i]; 1414e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng if (MCOI.isPredicate()) 1415b1bb4afbc7d801f9875be135c428b6f05511db5dJakob Stoklund Olesen OS << "pred:"; 1416e837dead3c8dc3445ef6a0e2322179c57e264a13Evan Cheng if (MCOI.isOptionalDef()) 1417b1bb4afbc7d801f9875be135c428b6f05511db5dJakob Stoklund Olesen OS << "opt:"; 1418b1bb4afbc7d801f9875be135c428b6f05511db5dJakob Stoklund Olesen } 141959b3655564bb6717b296ca9e71f13bf7db45b590Evan Cheng if (isDebugValue() && MO.isMetadata()) { 142059b3655564bb6717b296ca9e71f13bf7db45b590Evan Cheng // Pretty print DBG_VALUE instructions. 142159b3655564bb6717b296ca9e71f13bf7db45b590Evan Cheng const MDNode *MD = MO.getMetadata(); 142259b3655564bb6717b296ca9e71f13bf7db45b590Evan Cheng if (const MDString *MDS = dyn_cast<MDString>(MD->getOperand(2))) 142359b3655564bb6717b296ca9e71f13bf7db45b590Evan Cheng OS << "!\"" << MDS->getString() << '\"'; 142459b3655564bb6717b296ca9e71f13bf7db45b590Evan Cheng else 142559b3655564bb6717b296ca9e71f13bf7db45b590Evan Cheng MO.print(OS, TM); 1426b1e11455d1cf4df081a9593660d194c1a53b4334Jakob Stoklund Olesen } else if (TM && (isInsertSubreg() || isRegSequence()) && MO.isImm()) { 1427b1e11455d1cf4df081a9593660d194c1a53b4334Jakob Stoklund Olesen OS << TM->getRegisterInfo()->getSubRegIndexName(MO.getImm()); 14287a2ecd3f99ae4dede7e8c1984c2a08984be69363Jakob Stoklund Olesen } else if (i == AsmDescOp && MO.isImm()) { 14297a2ecd3f99ae4dede7e8c1984c2a08984be69363Jakob Stoklund Olesen // Pretty print the inline asm operand descriptor. 14307a2ecd3f99ae4dede7e8c1984c2a08984be69363Jakob Stoklund Olesen OS << '$' << AsmOpCount++; 14317a2ecd3f99ae4dede7e8c1984c2a08984be69363Jakob Stoklund Olesen unsigned Flag = MO.getImm(); 14327a2ecd3f99ae4dede7e8c1984c2a08984be69363Jakob Stoklund Olesen switch (InlineAsm::getKind(Flag)) { 1433459b74b9644c4741d93fe73adc2b06ca6bdb366dJakob Stoklund Olesen case InlineAsm::Kind_RegUse: OS << ":[reguse"; break; 1434459b74b9644c4741d93fe73adc2b06ca6bdb366dJakob Stoklund Olesen case InlineAsm::Kind_RegDef: OS << ":[regdef"; break; 1435459b74b9644c4741d93fe73adc2b06ca6bdb366dJakob Stoklund Olesen case InlineAsm::Kind_RegDefEarlyClobber: OS << ":[regdef-ec"; break; 1436459b74b9644c4741d93fe73adc2b06ca6bdb366dJakob Stoklund Olesen case InlineAsm::Kind_Clobber: OS << ":[clobber"; break; 1437459b74b9644c4741d93fe73adc2b06ca6bdb366dJakob Stoklund Olesen case InlineAsm::Kind_Imm: OS << ":[imm"; break; 1438459b74b9644c4741d93fe73adc2b06ca6bdb366dJakob Stoklund Olesen case InlineAsm::Kind_Mem: OS << ":[mem"; break; 1439459b74b9644c4741d93fe73adc2b06ca6bdb366dJakob Stoklund Olesen default: OS << ":[??" << InlineAsm::getKind(Flag); break; 14407a2ecd3f99ae4dede7e8c1984c2a08984be69363Jakob Stoklund Olesen } 14417a2ecd3f99ae4dede7e8c1984c2a08984be69363Jakob Stoklund Olesen 1442459b74b9644c4741d93fe73adc2b06ca6bdb366dJakob Stoklund Olesen unsigned RCID = 0; 1443459b74b9644c4741d93fe73adc2b06ca6bdb366dJakob Stoklund Olesen if (InlineAsm::hasRegClassConstraint(Flag, RCID)) 1444459b74b9644c4741d93fe73adc2b06ca6bdb366dJakob Stoklund Olesen if (TM) 1445459b74b9644c4741d93fe73adc2b06ca6bdb366dJakob Stoklund Olesen OS << ':' << TM->getRegisterInfo()->getRegClass(RCID)->getName(); 1446459b74b9644c4741d93fe73adc2b06ca6bdb366dJakob Stoklund Olesen else 1447459b74b9644c4741d93fe73adc2b06ca6bdb366dJakob Stoklund Olesen OS << ":RC" << RCID; 1448459b74b9644c4741d93fe73adc2b06ca6bdb366dJakob Stoklund Olesen 14497a2ecd3f99ae4dede7e8c1984c2a08984be69363Jakob Stoklund Olesen unsigned TiedTo = 0; 14507a2ecd3f99ae4dede7e8c1984c2a08984be69363Jakob Stoklund Olesen if (InlineAsm::isUseOperandTiedToDef(Flag, TiedTo)) 1451459b74b9644c4741d93fe73adc2b06ca6bdb366dJakob Stoklund Olesen OS << " tiedto:$" << TiedTo; 1452459b74b9644c4741d93fe73adc2b06ca6bdb366dJakob Stoklund Olesen 1453459b74b9644c4741d93fe73adc2b06ca6bdb366dJakob Stoklund Olesen OS << ']'; 14547a2ecd3f99ae4dede7e8c1984c2a08984be69363Jakob Stoklund Olesen 14557a2ecd3f99ae4dede7e8c1984c2a08984be69363Jakob Stoklund Olesen // Compute the index of the next operand descriptor. 14567a2ecd3f99ae4dede7e8c1984c2a08984be69363Jakob Stoklund Olesen AsmDescOp += 1 + InlineAsm::getNumOperandRegisters(Flag); 145759b3655564bb6717b296ca9e71f13bf7db45b590Evan Cheng } else 145859b3655564bb6717b296ca9e71f13bf7db45b590Evan Cheng MO.print(OS, TM); 145980f6c5898113806130975fd56d24929b06bf54f8Dan Gohman } 146080f6c5898113806130975fd56d24929b06bf54f8Dan Gohman 146180f6c5898113806130975fd56d24929b06bf54f8Dan Gohman // Briefly indicate whether any call clobbers were omitted. 146280f6c5898113806130975fd56d24929b06bf54f8Dan Gohman if (OmittedAnyCallClobbers) { 1463164558e59c2a321bf670e31a7bdde0d38d79bb67Bill Wendling if (!FirstOp) OS << ","; 146480f6c5898113806130975fd56d24929b06bf54f8Dan Gohman OS << " ..."; 14651049164aa6b06d91d9b3b557a9a213eaf3f6319aChris Lattner } 1466edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 14670ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman bool HaveSemi = false; 14686dd97471c43805b3febf598d50498a09a02e93f4Anton Korobeynikov if (Flags) { 14696dd97471c43805b3febf598d50498a09a02e93f4Anton Korobeynikov if (!HaveSemi) OS << ";"; HaveSemi = true; 14706dd97471c43805b3febf598d50498a09a02e93f4Anton Korobeynikov OS << " flags: "; 14716dd97471c43805b3febf598d50498a09a02e93f4Anton Korobeynikov 14726dd97471c43805b3febf598d50498a09a02e93f4Anton Korobeynikov if (Flags & FrameSetup) 14736dd97471c43805b3febf598d50498a09a02e93f4Anton Korobeynikov OS << "FrameSetup"; 14746dd97471c43805b3febf598d50498a09a02e93f4Anton Korobeynikov } 14756dd97471c43805b3febf598d50498a09a02e93f4Anton Korobeynikov 14768e5f2c6f65841542e2a7092553fe42a00048e4c7Dan Gohman if (!memoperands_empty()) { 14770ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman if (!HaveSemi) OS << ";"; HaveSemi = true; 14780ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman 14790ba90f3e34b826b039bdfece1415ef032c4ad3f5Dan Gohman OS << " mem:"; 1480c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman for (mmo_iterator i = memoperands_begin(), e = memoperands_end(); 1481c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman i != e; ++i) { 1482c76909abfec876c6b751d693ebd3df07df686aa0Dan Gohman OS << **i; 1483ee56c42168f6c4271593f6018c4409b6a5910302Oscar Fuentes if (llvm::next(i) != e) 1484cd26ec5f3c089b3b24f80ff200e94e681eb9e1eeDan Gohman OS << " "; 148569de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman } 148669de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman } 148769de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman 1488a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen // Print the regclass of any virtual registers encountered. 1489a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen if (MRI && !VirtRegs.empty()) { 1490a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen if (!HaveSemi) OS << ";"; HaveSemi = true; 1491a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen for (unsigned i = 0; i != VirtRegs.size(); ++i) { 1492a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen const TargetRegisterClass *RC = MRI->getRegClass(VirtRegs[i]); 14934314268128be6d54c9a7f0709680e5a5b40f3ab3Jakob Stoklund Olesen OS << " " << RC->getName() << ':' << PrintReg(VirtRegs[i]); 1494a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen for (unsigned j = i+1; j != VirtRegs.size();) { 1495a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen if (MRI->getRegClass(VirtRegs[j]) != RC) { 1496a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen ++j; 1497a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen continue; 1498a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen } 1499a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen if (VirtRegs[i] != VirtRegs[j]) 15004314268128be6d54c9a7f0709680e5a5b40f3ab3Jakob Stoklund Olesen OS << "," << PrintReg(VirtRegs[j]); 1501a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen VirtRegs.erase(VirtRegs.begin()+j); 1502a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen } 1503a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen } 1504a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen } 1505a0c5bf19bff7d06faa3e039a0638806c9e5a8ff6Jakob Stoklund Olesen 15066dd97471c43805b3febf598d50498a09a02e93f4Anton Korobeynikov // Print debug location information. 15074d3586dd230a3b16018da138404dbb87faf2008dDevang Patel if (isDebugValue() && getOperand(e - 1).isMetadata()) { 15084d3586dd230a3b16018da138404dbb87faf2008dDevang Patel if (!HaveSemi) OS << ";"; HaveSemi = true; 15094d3586dd230a3b16018da138404dbb87faf2008dDevang Patel DIVariable DV(getOperand(e - 1).getMetadata()); 15104d3586dd230a3b16018da138404dbb87faf2008dDevang Patel OS << " line no:" << DV.getLineNumber(); 15114d3586dd230a3b16018da138404dbb87faf2008dDevang Patel if (MDNode *InlinedAt = DV.getInlinedAt()) { 15124d3586dd230a3b16018da138404dbb87faf2008dDevang Patel DebugLoc InlinedAtDL = DebugLoc::getFromDILocation(InlinedAt); 15134d3586dd230a3b16018da138404dbb87faf2008dDevang Patel if (!InlinedAtDL.isUnknown()) { 15144d3586dd230a3b16018da138404dbb87faf2008dDevang Patel OS << " inlined @[ "; 15154d3586dd230a3b16018da138404dbb87faf2008dDevang Patel printDebugLoc(InlinedAtDL, MF, OS); 15164d3586dd230a3b16018da138404dbb87faf2008dDevang Patel OS << " ]"; 15174d3586dd230a3b16018da138404dbb87faf2008dDevang Patel } 15184d3586dd230a3b16018da138404dbb87faf2008dDevang Patel } 15194d3586dd230a3b16018da138404dbb87faf2008dDevang Patel } else if (!debugLoc.isUnknown() && MF) { 15206dd97471c43805b3febf598d50498a09a02e93f4Anton Korobeynikov if (!HaveSemi) OS << ";"; HaveSemi = true; 152175ae593a2750f9f7995980c3a03c0d972985e394Dan Gohman OS << " dbg:"; 1522da0e89f4c4057114fe7236fd001e9ef6d836ee82Devang Patel printDebugLoc(debugLoc, MF, OS); 1523b5ef27375731ece13a8ae0102b3f3233351036afBill Wendling } 1524b5ef27375731ece13a8ae0102b3f3233351036afBill Wendling 15256dd97471c43805b3febf598d50498a09a02e93f4Anton Korobeynikov OS << '\n'; 15261049164aa6b06d91d9b3b557a9a213eaf3f6319aChris Lattner} 15271049164aa6b06d91d9b3b557a9a213eaf3f6319aChris Lattner 1528b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Andersonbool MachineInstr::addRegisterKilled(unsigned IncomingReg, 15296f0d024a534af18d9e60b3ea757376cd8a3a980eDan Gohman const TargetRegisterInfo *RegInfo, 1530b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson bool AddIfNotFound) { 15319b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng bool isPhysReg = TargetRegisterInfo::isPhysicalRegister(IncomingReg); 15322ebc11ac6d19ec806da97bd4f2d49a27932d09fbDan Gohman bool hasAliases = isPhysReg && RegInfo->getAliasSet(IncomingReg); 15333f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman bool Found = false; 15349b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng SmallVector<unsigned,4> DeadOps; 15354a23d72ec21d1bdfda69fd16c9fc10cec39f1fedBill Wendling for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 15364a23d72ec21d1bdfda69fd16c9fc10cec39f1fedBill Wendling MachineOperand &MO = getOperand(i); 1537efb8e3e113cbf359d6a838c3b37fedc8305d19bbJakob Stoklund Olesen if (!MO.isReg() || !MO.isUse() || MO.isUndef()) 15389b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng continue; 15399b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng unsigned Reg = MO.getReg(); 15409b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng if (!Reg) 15419b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng continue; 15424a23d72ec21d1bdfda69fd16c9fc10cec39f1fedBill Wendling 15439b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng if (Reg == IncomingReg) { 15443f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman if (!Found) { 15453f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman if (MO.isKill()) 15463f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman // The register is already marked kill. 15473f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman return true; 1548ece48185168ab130b1777feb86d9e3fe80eb87d2Jakob Stoklund Olesen if (isPhysReg && isRegTiedToDefOperand(i)) 1549ece48185168ab130b1777feb86d9e3fe80eb87d2Jakob Stoklund Olesen // Two-address uses of physregs must not be marked kill. 1550ece48185168ab130b1777feb86d9e3fe80eb87d2Jakob Stoklund Olesen return true; 15513f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman MO.setIsKill(); 15523f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman Found = true; 15533f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman } 15543f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman } else if (hasAliases && MO.isKill() && 15553f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman TargetRegisterInfo::isPhysicalRegister(Reg)) { 15569b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng // A super-register kill already exists. 15579b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng if (RegInfo->isSuperRegister(IncomingReg, Reg)) 15582ebc11ac6d19ec806da97bd4f2d49a27932d09fbDan Gohman return true; 15592ebc11ac6d19ec806da97bd4f2d49a27932d09fbDan Gohman if (RegInfo->isSubRegister(IncomingReg, Reg)) 15609b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng DeadOps.push_back(i); 1561b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson } 1562b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson } 1563b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson 15649b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng // Trim unneeded kill operands. 15659b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng while (!DeadOps.empty()) { 15669b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng unsigned OpIdx = DeadOps.back(); 15679b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng if (getOperand(OpIdx).isImplicit()) 15689b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng RemoveOperand(OpIdx); 15699b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng else 15709b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng getOperand(OpIdx).setIsKill(false); 15719b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng DeadOps.pop_back(); 15729b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng } 15739b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng 15744a23d72ec21d1bdfda69fd16c9fc10cec39f1fedBill Wendling // If not found, this means an alias of one of the operands is killed. Add a 1575b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson // new implicit operand if required. 15763f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman if (!Found && AddIfNotFound) { 15774a23d72ec21d1bdfda69fd16c9fc10cec39f1fedBill Wendling addOperand(MachineOperand::CreateReg(IncomingReg, 15784a23d72ec21d1bdfda69fd16c9fc10cec39f1fedBill Wendling false /*IsDef*/, 15794a23d72ec21d1bdfda69fd16c9fc10cec39f1fedBill Wendling true /*IsImp*/, 15804a23d72ec21d1bdfda69fd16c9fc10cec39f1fedBill Wendling true /*IsKill*/)); 1581b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson return true; 1582b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson } 15833f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman return Found; 1584b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson} 1585b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson 1586b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Andersonbool MachineInstr::addRegisterDead(unsigned IncomingReg, 15876f0d024a534af18d9e60b3ea757376cd8a3a980eDan Gohman const TargetRegisterInfo *RegInfo, 1588b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson bool AddIfNotFound) { 15899b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng bool isPhysReg = TargetRegisterInfo::isPhysicalRegister(IncomingReg); 159001b2e236b571e7c22ee8493b7ea19eda9830d75cEvan Cheng bool hasAliases = isPhysReg && RegInfo->getAliasSet(IncomingReg); 15913f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman bool Found = false; 15929b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng SmallVector<unsigned,4> DeadOps; 1593b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 1594b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson MachineOperand &MO = getOperand(i); 1595d735b8019b0f297d7c14b55adcd887af24d8e602Dan Gohman if (!MO.isReg() || !MO.isDef()) 15969b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng continue; 15979b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng unsigned Reg = MO.getReg(); 15983f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman if (!Reg) 15993f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman continue; 16003f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman 16019b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng if (Reg == IncomingReg) { 1602b793bc1ccabef36b3223bae69f5e94a8e98d22ebJakob Stoklund Olesen MO.setIsDead(); 1603b793bc1ccabef36b3223bae69f5e94a8e98d22ebJakob Stoklund Olesen Found = true; 16043f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman } else if (hasAliases && MO.isDead() && 16053f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman TargetRegisterInfo::isPhysicalRegister(Reg)) { 16069b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng // There exists a super-register that's marked dead. 16079b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng if (RegInfo->isSuperRegister(IncomingReg, Reg)) 16082ebc11ac6d19ec806da97bd4f2d49a27932d09fbDan Gohman return true; 160922ae99908258dd5631fde7128a94c418ed08eae5Owen Anderson if (RegInfo->getSubRegisters(IncomingReg) && 161022ae99908258dd5631fde7128a94c418ed08eae5Owen Anderson RegInfo->getSuperRegisters(Reg) && 161122ae99908258dd5631fde7128a94c418ed08eae5Owen Anderson RegInfo->isSubRegister(IncomingReg, Reg)) 16129b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng DeadOps.push_back(i); 1613b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson } 1614b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson } 1615b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson 16169b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng // Trim unneeded dead operands. 16179b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng while (!DeadOps.empty()) { 16189b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng unsigned OpIdx = DeadOps.back(); 16199b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng if (getOperand(OpIdx).isImplicit()) 16209b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng RemoveOperand(OpIdx); 16219b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng else 16229b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng getOperand(OpIdx).setIsDead(false); 16239b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng DeadOps.pop_back(); 16249b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng } 16259b6d7b9fb36b5cf87d291881dfcea399796f7826Evan Cheng 16263f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman // If not found, this means an alias of one of the operands is dead. Add a 16273f62940561760fe5dcc8675853be57ee4ac8069aDan Gohman // new implicit operand if required. 162831530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner if (Found || !AddIfNotFound) 162931530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner return Found; 1630ee61d67c2f1105e23b2ea5110389f3b7b713b504Jim Grosbach 163131530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner addOperand(MachineOperand::CreateReg(IncomingReg, 163231530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner true /*IsDef*/, 163331530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner true /*IsImp*/, 163431530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner false /*IsKill*/, 163531530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner true /*IsDead*/)); 163631530617dd206c3ac549e98508d8f98e91bf8275Chris Lattner return true; 1637b487e7215c4f70f3d98f8fbc0a11eb119afc1f37Owen Anderson} 16388efadf94b568c08de3ff8ce35fd904a935387406Jakob Stoklund Olesen 16398efadf94b568c08de3ff8ce35fd904a935387406Jakob Stoklund Olesenvoid MachineInstr::addRegisterDefined(unsigned IncomingReg, 16408efadf94b568c08de3ff8ce35fd904a935387406Jakob Stoklund Olesen const TargetRegisterInfo *RegInfo) { 164163e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen if (TargetRegisterInfo::isPhysicalRegister(IncomingReg)) { 164263e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen MachineOperand *MO = findRegisterDefOperand(IncomingReg, false, RegInfo); 164363e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen if (MO) 164463e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen return; 164563e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen } else { 164663e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 164763e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen const MachineOperand &MO = getOperand(i); 164863e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen if (MO.isReg() && MO.getReg() == IncomingReg && MO.isDef() && 164963e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen MO.getSubReg() == 0) 165063e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen return; 165163e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen } 165263e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen } 165363e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen addOperand(MachineOperand::CreateReg(IncomingReg, 165463e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen true /*IsDef*/, 165563e6a488cb6c29983415221719d05fbf99e00193Jakob Stoklund Olesen true /*IsImp*/)); 16568efadf94b568c08de3ff8ce35fd904a935387406Jakob Stoklund Olesen} 165767eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Cheng 1658db4971259ce94cea26e555e9ade82672a3581f5cDan Gohmanvoid MachineInstr::setPhysRegsDeadExcept(const SmallVectorImpl<unsigned> &UsedRegs, 1659db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman const TargetRegisterInfo &TRI) { 1660db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 1661db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman MachineOperand &MO = getOperand(i); 1662db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman if (!MO.isReg() || !MO.isDef()) continue; 1663db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman unsigned Reg = MO.getReg(); 1664db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman if (Reg == 0) continue; 1665db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman bool Dead = true; 1666db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman for (SmallVectorImpl<unsigned>::const_iterator I = UsedRegs.begin(), 1667db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman E = UsedRegs.end(); I != E; ++I) 1668db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman if (TRI.regsOverlap(*I, Reg)) { 1669db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman Dead = false; 1670db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman break; 1671db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman } 1672db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman // If there are no uses, including partial uses, the def is dead. 1673db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman if (Dead) MO.setIsDead(); 1674db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman } 1675db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman} 1676db4971259ce94cea26e555e9ade82672a3581f5cDan Gohman 167767eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Chengunsigned 167867eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan ChengMachineInstrExpressionTrait::getHashValue(const MachineInstr* const &MI) { 167967eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Cheng unsigned Hash = MI->getOpcode() * 37; 168067eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Cheng for (unsigned i = 0, e = MI->getNumOperands(); i != e; ++i) { 168167eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Cheng const MachineOperand &MO = MI->getOperand(i); 168267eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Cheng uint64_t Key = (uint64_t)MO.getType() << 32; 168367eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Cheng switch (MO.getType()) { 168472aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner default: break; 168572aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner case MachineOperand::MO_Register: 1686c9df025e33ac435adb3b3318d237c36ca7cec659Jakob Stoklund Olesen if (MO.isDef() && TargetRegisterInfo::isVirtualRegister(MO.getReg())) 168772aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner continue; // Skip virtual register defs. 168872aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner Key |= MO.getReg(); 168972aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner break; 169072aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner case MachineOperand::MO_Immediate: 169172aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner Key |= MO.getImm(); 169272aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner break; 169372aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner case MachineOperand::MO_FrameIndex: 169472aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner case MachineOperand::MO_ConstantPoolIndex: 169572aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner case MachineOperand::MO_JumpTableIndex: 169672aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner Key |= MO.getIndex(); 169772aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner break; 169872aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner case MachineOperand::MO_MachineBasicBlock: 169972aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner Key |= DenseMapInfo<void*>::getHashValue(MO.getMBB()); 170072aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner break; 170172aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner case MachineOperand::MO_GlobalAddress: 170272aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner Key |= DenseMapInfo<void*>::getHashValue(MO.getGlobal()); 170372aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner break; 170472aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner case MachineOperand::MO_BlockAddress: 170572aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner Key |= DenseMapInfo<void*>::getHashValue(MO.getBlockAddress()); 170672aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner break; 170772aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner case MachineOperand::MO_MCSymbol: 170872aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner Key |= DenseMapInfo<void*>::getHashValue(MO.getMCSymbol()); 170972aaa3c79869870bd16402ed1f37b80a5e71c800Chris Lattner break; 171067eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Cheng } 171167eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Cheng Key += ~(Key << 32); 171267eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Cheng Key ^= (Key >> 22); 171367eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Cheng Key += ~(Key << 13); 171467eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Cheng Key ^= (Key >> 8); 171567eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Cheng Key += (Key << 3); 171667eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Cheng Key ^= (Key >> 15); 171767eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Cheng Key += ~(Key << 27); 171867eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Cheng Key ^= (Key >> 31); 171967eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Cheng Hash = (unsigned)Key + Hash * 37; 172067eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Cheng } 172167eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Cheng return Hash; 172267eaa08f2b71aa8aec8cdf4c7d970db4cad58adaEvan Cheng} 1723d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen 1724d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesenvoid MachineInstr::emitError(StringRef Msg) const { 1725d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen // Find the source location cookie. 1726d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen unsigned LocCookie = 0; 1727d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen const MDNode *LocMD = 0; 1728d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen for (unsigned i = getNumOperands(); i != 0; --i) { 1729d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen if (getOperand(i-1).isMetadata() && 1730d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen (LocMD = getOperand(i-1).getMetadata()) && 1731d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen LocMD->getNumOperands() != 0) { 1732d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen if (const ConstantInt *CI = dyn_cast<ConstantInt>(LocMD->getOperand(0))) { 1733d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen LocCookie = CI->getZExtValue(); 1734d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen break; 1735d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen } 1736d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen } 1737d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen } 1738d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen 1739d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen if (const MachineBasicBlock *MBB = getParent()) 1740d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen if (const MachineFunction *MF = MBB->getParent()) 1741d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen return MF->getMMI().getModule()->getContext().emitError(LocCookie, Msg); 1742d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen report_fatal_error(Msg); 1743d519de082766bb71e13f6a516b305ff841c6b48cJakob Stoklund Olesen} 1744