79 TRI = MF->getSubtarget().getRegisterInfo();
80 MRI = &MF->getRegInfo();
81 IntrinsicInfo = MF->getTarget().getIntrinsicInfo();
82 TII = MF->getSubtarget().getInstrInfo();
98 : MCID(&TID), DbgLoc(
std::
move(
DL)), DebugInstrNum(0) {
104 CapOperands = OperandCapacity::get(NumOps);
120 CapOperands = OperandCapacity::get(
MI.getNumOperands());
132 NewMO.TiedTo = OrigMO.TiedTo;
155 MRI.removeRegOperandFromUseList(&MO);
161 MRI.addRegOperandToUseList(&MO);
166 assert(
MBB &&
"Use MachineInstrBuilder to add operands to dangling instrs");
168 assert(MF &&
"Use MachineInstrBuilder to add operands to dangling instrs");
177 return MRI->moveOperands(Dst, Src, NumOps);
179 assert(Dst && Src &&
"Unknown operands");
188 assert(MCID &&
"Cannot add operands before providing an instr descriptor");
191 if (&Op >= Operands && &Op < Operands + NumOperands) {
207 bool isImpReg = Op.isReg() && Op.isImplicit();
209 while (OpNo && Operands[OpNo-1].
isReg() && Operands[OpNo-1].isImplicit()) {
211 assert(!Operands[OpNo].isTied() &&
"Cannot move tied operands");
219 Op.isValidExcessOperand()) &&
220 "Trying to add an operand to a machine instr that is already done!");
226 OperandCapacity OldCap = CapOperands;
229 CapOperands = OldOperands ? OldCap.getNext() : OldCap.get(1);
237 if (OpNo != NumOperands)
238 moveOperands(Operands + OpNo + 1, OldOperands + OpNo, NumOperands - OpNo,
243 if (OldOperands != Operands && OldOperands)
248 NewMO->ParentMI =
this;
251 if (NewMO->
isReg()) {
253 NewMO->Contents.Reg.Prev =
nullptr;
258 MRI->addRegOperandToUseList(NewMO);
264 if (NewMO->
isUse()) {
286 if (Operands[i].
isReg())
287 assert(!Operands[i].isTied() &&
"Cannot move tied operands");
292 MRI->removeRegOperandFromUseList(Operands + OpNo);
298 if (
unsigned N = NumOperands - 1 - OpNo)
309 bool HasPreInstrSymbol = PreInstrSymbol !=
nullptr;
310 bool HasPostInstrSymbol = PostInstrSymbol !=
nullptr;
311 bool HasHeapAllocMarker = HeapAllocMarker !=
nullptr;
312 bool HasPCSections = PCSections !=
nullptr;
313 bool HasCFIType = CFIType != 0;
314 int NumPointers = MMOs.
size() + HasPreInstrSymbol + HasPostInstrSymbol +
315 HasHeapAllocMarker + HasPCSections + HasCFIType;
318 if (NumPointers <= 0) {
327 else if (NumPointers > 1 || HasHeapAllocMarker || HasPCSections ||
329 Info.set<EIIK_OutOfLine>(
331 HeapAllocMarker, PCSections, CFIType));
336 if (HasPreInstrSymbol)
337 Info.set<EIIK_PreInstrSymbol>(PreInstrSymbol);
338 else if (HasPostInstrSymbol)
339 Info.set<EIIK_PostInstrSymbol>(PostInstrSymbol);
341 Info.set<EIIK_MMO>(MMOs[0]);
377 "Invalid machine functions when cloning memory refrences!");
397 if (
LHS.size() !=
RHS.size())
402 return std::equal(LHSPointees.begin(), LHSPointees.end(),
403 RHSPointees.begin());
413 if (MIs.
size() == 1) {
429 "Invalid machine functions when cloning memory references!");
434 "Invalid machine functions when cloning memory references!");
445 if (
MI.memoperands_empty()) {
451 MergedMMOs.
append(
MI.memoperands_begin(),
MI.memoperands_end());
463 if (!Symbol && Info.is<EIIK_PreInstrSymbol>()) {
478 if (!Symbol && Info.is<EIIK_PostInstrSymbol>()) {
521 "Invalid machine functions when cloning instruction symbols!");
539 dyn_cast<OverflowingBinaryOperator>(&
I)) {
540 if (OB->hasNoSignedWrap())
542 if (OB->hasNoUnsignedWrap())
558 if (
Flags.noSignedZeros())
560 if (
Flags.allowReciprocal())
562 if (
Flags.allowContract())
564 if (
Flags.approxFunc())
566 if (
Flags.allowReassoc())
577bool MachineInstr::hasPropertyInBundle(
uint64_t Mask, QueryType
Type)
const {
580 if (MII->getDesc().getFlags() & Mask) {
588 if (!MII->isBundledWithSucc())
605 assert(
Other.isBundle() &&
"Expected that both instructions are bundles.");
610 while (I1->isBundledWithSucc() && I2->isBundledWithSucc()) {
613 if (!I1->isIdenticalTo(*I2,
Check))
618 if (I1->isBundledWithSucc() || I2->isBundledWithSucc())
686 Other.getDebugExpression(),
Other.isIndirectDebugValue()))
719 case TargetOpcode::PATCHPOINT:
720 case TargetOpcode::STACKMAP:
721 case TargetOpcode::STATEPOINT:
722 case TargetOpcode::FENTRY_CALL:
772 assert(!Pred->isBundledWithSucc() &&
"Inconsistent bundle flags");
781 assert(!Succ->isBundledWithPred() &&
"Inconsistent bundle flags");
790 assert(Pred->isBundledWithSucc() &&
"Inconsistent bundle flags");
799 assert(Succ->isBundledWithPred() &&
"Inconsistent bundle flags");
819 unsigned *GroupNo)
const {
836 if (i + NumOps > OpIdx) {
848 return cast<DILabel>(
getOperand(0).getMetadata());
892 assert(
getMF() &&
"Can't have an MF reference here!");
918 return TRI->getRegClass(RCID);
922 return TRI->getPointerRegClass(MF);
935 CurRC = OpndIt->getParent()->getRegClassConstraintEffectForVRegImpl(
936 OpndIt.getOperandNo(), Reg, CurRC,
TII,
TRI);
939 for (
unsigned i = 0, e = NumOperands; i < e && CurRC; ++i)
940 CurRC = getRegClassConstraintEffectForVRegImpl(i, Reg, CurRC,
TII,
TRI);
947 assert(CurRC &&
"Invalid initial register class");
962 "Cannot get register constraints for non-register operand");
963 assert(CurRC &&
"Invalid initial register class");
966 CurRC =
TRI->getMatchingSuperRegClass(CurRC, OpRC, SubIdx);
968 CurRC =
TRI->getSubClassWithSubReg(CurRC, SubIdx);
970 CurRC =
TRI->getCommonSubClass(CurRC, OpRC);
979 while (
I->isBundledWithSucc()) {
1009 if (MOReg == Reg || (
TRI && Reg && MOReg &&
TRI->regsOverlap(MOReg, Reg)))
1022 bool PartDef =
false;
1023 bool FullDef =
false;
1041 return std::make_pair(
Use || (PartDef && !FullDef), PartDef || FullDef);
1051 bool isPhys = Reg.isPhysical();
1061 bool Found = (MOReg == Reg);
1064 Found =
TRI->regsOverlap(MOReg, Reg);
1066 Found =
TRI->isSubRegister(MOReg, Reg);
1068 if (Found && (!isDead || MO.
isDead()))
1085 if (MCID.
operands()[i].isPredicate())
1110 assert(DefMO.
isDef() &&
"DefIdx must be a def operand");
1111 assert(UseMO.
isUse() &&
"UseIdx must be a use operand");
1112 assert(!DefMO.
isTied() &&
"Def is already tied to another use");
1113 assert(!UseMO.
isTied() &&
"Use is already tied to another def");
1116 UseMO.TiedTo = DefIdx + 1;
1123 "DefIdx out of range");
1128 DefMO.TiedTo = std::min(UseIdx + 1,
TiedMax);
1140 return MO.TiedTo - 1;
1150 if (UseMO.
isReg() && UseMO.
isUse() && UseMO.TiedTo == OpIdx + 1)
1156 if (
getOpcode() == TargetOpcode::STATEPOINT) {
1161 assert(CurUseIdx != -1U &&
"only gc pointer statepoint operands can be tied");
1163 for (
unsigned CurDefIdx = 0; CurDefIdx < NumDefs; ++CurDefIdx) {
1166 if (OpIdx == CurDefIdx)
1168 if (OpIdx == CurUseIdx)
1178 unsigned OpIdxGroup = ~0u;
1183 assert(FlagMO.
isImm() &&
"Invalid tied operand on inline asm");
1184 unsigned CurGroup = GroupIdx.
size();
1188 if (OpIdx > i && OpIdx < i + NumOps)
1189 OpIdxGroup = CurGroup;
1195 unsigned Delta = i - GroupIdx[TiedGroup];
1198 if (OpIdxGroup == CurGroup)
1199 return OpIdx - Delta;
1202 if (OpIdxGroup == TiedGroup)
1203 return OpIdx + Delta;
1222 ToReg = RegInfo.
getSubReg(ToReg, SubIdx);
1287 int64_t MinOffset = std::min(OffsetA, OffsetB);
1296 bool SameVal = (ValA && ValB && (ValA == ValB));
1300 if (PSVa && ValB && !PSVa->
mayAlias(&MFI))
1302 if (PSVb && ValA && !PSVb->
mayAlias(&MFI))
1304 if (PSVa && PSVb && (PSVa == PSVb))
1309 if (!KnownWidthA || !KnownWidthB)
1311 int64_t MaxOffset = std::max(OffsetA, OffsetB);
1312 int64_t LowWidth = (MinOffset == OffsetA) ? WidthA : WidthB;
1313 return (MinOffset + LowWidth > MaxOffset);
1322 assert((OffsetA >= 0) &&
"Negative MachineMemOperand offset");
1323 assert((OffsetB >= 0) &&
"Negative MachineMemOperand offset");
1367 if (NumChecks >
TII->getMemOperandAACheckLimit())
1373 for (
auto *MMOb :
Other.memoperands())
1419 if (!MMO->isUnordered())
1424 if (MMO->isStore())
return false;
1425 if (MMO->isInvariant() && MMO->isDereferenceable())
1430 if (PSV->isConstant(&MFI))
1449 "It's illegal to have a PHI without source operands");
1499 if (MCID.
Opcode == TargetOpcode::STATEPOINT)
1503 if (!Operand.isReg() || Operand.isDef())
1508 if (ExpectedTiedIdx != TiedIdx)
1521 return MRI.getType(Op.getReg());
1524 if (!OpInfo.isGenericType())
1525 return MRI.getType(Op.getReg());
1527 if (PrintedTypes[OpInfo.getGenericTypeIndex()])
1530 LLT TypeToPrint =
MRI.getType(Op.getReg());
1534 PrintedTypes.
set(OpInfo.getGenericTypeIndex());
1538#if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP)
1549 if (!AlreadySeenInstrs.
insert(
this).second)
1560 if (Reg.isPhysical())
1563 if (NewMI ==
nullptr)
1577 bool SkipDebugLoc,
bool AddNewLine,
1579 const Module *M =
nullptr;
1591 print(
OS, MST, IsStandalone, SkipOpers, SkipDebugLoc, AddNewLine,
TII);
1595 bool IsStandalone,
bool SkipOpers,
bool SkipDebugLoc,
1608 auto getTiedOperandIdx = [&](
unsigned OpIdx) {
1609 if (!ShouldPrintRegisterTies)
1616 unsigned StartOp = 0;
1620 while (StartOp < e) {
1629 unsigned TiedOperandIdx = getTiedOperandIdx(StartOp);
1630 MO.
print(
OS, MST, TypeToPrint, StartOp,
false, IsStandalone,
1631 ShouldPrintRegisterTies, TiedOperandIdx,
TRI, IntrinsicInfo);
1639 OS <<
"frame-setup ";
1641 OS <<
"frame-destroy ";
1663 OS <<
"nofpexcept ";
1677 bool FirstOp =
true;
1678 unsigned AsmDescOp = ~0u;
1679 unsigned AsmOpCount = 0;
1686 unsigned TiedOperandIdx = getTiedOperandIdx(OpIdx);
1688 ShouldPrintRegisterTies, TiedOperandIdx,
TRI,
1694 OS <<
" [sideeffect]";
1698 OS <<
" [maystore]";
1700 OS <<
" [isconvergent]";
1702 OS <<
" [alignstack]";
1704 OS <<
" [attdialect]";
1706 OS <<
" [inteldialect]";
1715 if (FirstOp) FirstOp =
false;
else OS <<
",";
1720 auto *DIV = dyn_cast<DILocalVariable>(MO.
getMetadata());
1721 if (DIV && !DIV->getName().empty())
1722 OS <<
"!\"" << DIV->getName() <<
'\"';
1725 unsigned TiedOperandIdx = getTiedOperandIdx(i);
1726 MO.
print(
OS, MST, TypeToPrint, i,
true, IsStandalone,
1727 ShouldPrintRegisterTies, TiedOperandIdx,
TRI, IntrinsicInfo);
1732 if (DIL && !DIL->getName().empty())
1733 OS <<
"\"" << DIL->getName() <<
'\"';
1736 unsigned TiedOperandIdx = getTiedOperandIdx(i);
1737 MO.
print(
OS, MST, TypeToPrint, i,
true, IsStandalone,
1738 ShouldPrintRegisterTies, TiedOperandIdx,
TRI, IntrinsicInfo);
1740 }
else if (i == AsmDescOp && MO.
isImm()) {
1742 OS <<
'$' << AsmOpCount++;
1743 unsigned Flag = MO.
getImm();
1751 OS <<
':' <<
TRI->getRegClassName(
TRI->getRegClass(RCID));
1753 OS <<
":RC" << RCID;
1761 unsigned TiedTo = 0;
1763 OS <<
" tiedto:$" << TiedTo;
1771 unsigned TiedOperandIdx = getTiedOperandIdx(i);
1775 MO.
print(
OS, MST, TypeToPrint, i,
true, IsStandalone,
1776 ShouldPrintRegisterTies, TiedOperandIdx,
TRI, IntrinsicInfo);
1787 OS <<
" pre-instr-symbol ";
1795 OS <<
" post-instr-symbol ";
1803 OS <<
" heap-alloc-marker ";
1811 OS <<
" pcsections ";
1817 OS <<
" cfi-type " << CFIType;
1820 if (DebugInstrNum) {
1823 OS <<
" debug-instr-number " << DebugInstrNum;
1826 if (!SkipDebugLoc) {
1830 OS <<
" debug-location ";
1838 std::unique_ptr<LLVMContext> CtxPtr;
1844 CtxPtr = std::make_unique<LLVMContext>();
1849 bool NeedComma =
false;
1861 bool HaveSemi =
false;
1880 OS <<
" line no:" << DV->getLine();
1892 bool AddIfNotFound) {
1894 bool hasAliases = isPhysReg &&
1913 if (Reg == IncomingReg) {
1924 }
else if (hasAliases && MO.
isKill() && Reg.isPhysical()) {
1934 while (!DeadOps.
empty()) {
1935 unsigned OpIdx = DeadOps.
back();
1946 if (!Found && AddIfNotFound) {
1958 if (!Reg.isPhysical())
1964 if ((RegInfo && RegInfo->
regsOverlap(Reg, OpReg)) || Reg == OpReg)
1971 bool AddIfNotFound) {
1972 bool isPhysReg = Reg.isPhysical();
1973 bool hasAliases = isPhysReg &&
1998 while (!DeadOps.
empty()) {
1999 unsigned OpIdx = DeadOps.
back();
2010 if (Found || !AddIfNotFound)
2039 if (Reg.isPhysical()) {
2057 bool HasRegMask =
false;
2065 if (!Reg.isPhysical())
2076 for (
const Register &UsedReg : UsedRegs)
2084 HashComponents.
reserve(
MI->getNumOperands() + 1);
2098 const MDNode *LocMD =
nullptr;
2104 mdconst::dyn_extract<ConstantInt>(LocMD->
getOperand(0))) {
2105 LocCookie = CI->getZExtValue();
2121 assert(isa<DILocalVariable>(Variable) &&
"not a variable");
2122 assert(cast<DIExpression>(Expr)->
isValid() &&
"not an expression");
2123 assert(cast<DILocalVariable>(Variable)->isValidLocationForIntrinsic(
DL) &&
2124 "Expected inlined-at fields to agree");
2137 assert(isa<DILocalVariable>(Variable) &&
"not a variable");
2138 assert(cast<DIExpression>(Expr)->
isValid() &&
"not an expression");
2139 assert(cast<DILocalVariable>(Variable)->isValidLocationForIntrinsic(
DL) &&
2140 "Expected inlined-at fields to agree");
2141 if (MCID.
Opcode == TargetOpcode::DBG_VALUE) {
2143 "DBG_VALUE must contain exactly one debug operand");
2145 if (DebugOp.
isReg())
2158 MIB.addMetadata(Variable).addMetadata(Expr);
2160 if (DebugOp.isReg())
2161 MIB.addReg(DebugOp.getReg());
2186 BuildMI(MF,
DL, MCID, IsIndirect, DebugOps, Variable, Expr);
2196 assert(
MI.getDebugVariable()->isValidLocationForIntrinsic(
MI.getDebugLoc()) &&
2197 "Expected inlined-at fields to agree");
2200 if (
MI.isIndirectDebugValue()) {
2201 assert(
MI.getDebugOffset().getImm() == 0 &&
2202 "DBG_VALUE with nonzero offset");
2204 }
else if (
MI.isDebugValueList()) {
2207 std::array<uint64_t, 1> Ops{{dwarf::DW_OP_deref}};
2209 unsigned OpIdx =
MI.getDebugOperandIndex(Op);
2217 assert(
MI.hasDebugOperandForReg(SpillReg) &&
"Spill Reg is not used in MI.");
2227 int FrameIndex,
Register SpillReg) {
2229 "DBG_INSTR_REF should not reference a virtual register.");
2240 if (Op.isReg() && Op.getReg() == SpillReg)
2275 Op.ChangeToFrameIndex(FrameIndex);
2282 if (!
MI.getOperand(0).isReg())
2288 if (!DI->isDebugValue())
2290 if (DI->hasDebugOperandForReg(
MI.getOperand(0).getReg()))
2303 auto *
MRI = getRegInfo();
2304 for (
auto &MO :
MRI->use_operands(DefReg)) {
2306 if (!DI->isDebugValue())
2308 if (DI->hasDebugOperandForReg(DefReg)) {
2314 for (
auto *DBI : DbgValues)
2324 for (
const auto *
A : Accesses)
2326 cast<FixedStackPseudoSourceValue>(
A->getPseudoValue())
2328 Size +=
A->getSize();
2332std::optional<unsigned>
2335 if (
TII->isStoreToStackSlotPostFE(*
this, FI)) {
2340 return std::nullopt;
2343std::optional<unsigned>
2348 return std::nullopt;
2351std::optional<unsigned>
2354 if (
TII->isLoadFromStackSlotPostFE(*
this, FI)) {
2359 return std::nullopt;
2362std::optional<unsigned>
2367 return std::nullopt;
2371 if (DebugInstrNum == 0)
2373 return DebugInstrNum;
2377 if (DebugInstrNum == 0)
2379 return DebugInstrNum;
unsigned const MachineRegisterInfo * MRI
MachineBasicBlock MachineBasicBlock::iterator DebugLoc DL
static GCRegistry::Add< ErlangGC > A("erlang", "erlang-compatible garbage collector")
static GCRegistry::Add< CoreCLRGC > E("coreclr", "CoreCLR-compatible GC")
Analysis containing CSE Info
#define LLVM_DUMP_METHOD
Mark debug helper function definitions like dump() that should not be stripped from debug builds.
This file contains the declarations for the subclasses of Constant, which represent the different fla...
const HexagonInstrInfo * TII
static const unsigned MaxDepth
Implement a low-level type suitable for MachineInstr level instruction selection.
static DebugLoc getDebugLoc(MachineBasicBlock::instr_iterator FirstMI, MachineBasicBlock::instr_iterator LastMI)
Return the first found DebugLoc that has a DILocation, given a range of instructions.
static void moveOperands(MachineOperand *Dst, MachineOperand *Src, unsigned NumOps, MachineRegisterInfo *MRI)
Move NumOps MachineOperands from Src to Dst, with support for overlapping ranges.
static unsigned getSpillSlotSize(const MMOList &Accesses, const MachineFrameInfo &MFI)
static bool MemOperandsHaveAlias(const MachineFrameInfo &MFI, AAResults *AA, bool UseTBAA, const MachineMemOperand *MMOa, const MachineMemOperand *MMOb)
static void tryToGetTargetInfo(const MachineInstr &MI, const TargetRegisterInfo *&TRI, const MachineRegisterInfo *&MRI, const TargetIntrinsicInfo *&IntrinsicInfo, const TargetInstrInfo *&TII)
static const DIExpression * computeExprForSpill(const MachineInstr &MI, SmallVectorImpl< const MachineOperand * > &SpilledOperands)
Compute the new DIExpression to use with a DBG_VALUE for a spill slot.
static const MachineFunction * getMFIfAvailable(const MachineInstr &MI)
static bool hasIdenticalMMOs(ArrayRef< MachineMemOperand * > LHS, ArrayRef< MachineMemOperand * > RHS)
Check to see if the MMOs pointed to by the two MemRefs arrays are identical.
unsigned const TargetRegisterInfo * TRI
This file provides utility analysis objects describing memory locations.
static unsigned getReg(const MCDisassembler *D, unsigned RC, unsigned RegNo)
static bool isReg(const MCInst &MI, unsigned OpNo)
Module.h This file contains the declarations for the Module class.
static bool isValid(const char C)
Returns true if C is a valid mangled character: <0-9a-zA-Z_>.
assert(ImpDefSCC.getReg()==AMDGPU::SCC &&ImpDefSCC.isDef())
static cl::opt< bool > UseTBAA("use-tbaa-in-sched-mi", cl::Hidden, cl::init(true), cl::desc("Enable use of TBAA during MI DAG construction"))
This file implements the SmallBitVector class.
This file defines the SmallVector class.
bool isNoAlias(const MemoryLocation &LocA, const MemoryLocation &LocB)
A trivial helper function to check to see if the specified pointers are no-alias.
ArrayRef - Represent a constant reference to an array (0 or more elements consecutively in memory),...
size_t size() const
size - Get the array size.
bool empty() const
empty - Check if the array is empty.
ArrayRef< T > slice(size_t N, size_t M) const
slice(n, m) - Chop off the first N elements of the array, and keep M elements in the array.
ConstMIBundleOperands - Iterate over all operands in a const bundle of machine instructions.
This is the shared class of boolean and integer constants.
bool isEntryValue() const
Check if the expression consists of exactly one entry value operand.
static bool isEqualExpression(const DIExpression *FirstExpr, bool FirstIndirect, const DIExpression *SecondExpr, bool SecondIndirect)
Determines whether two debug values should produce equivalent DWARF expressions, using their DIExpres...
static DIExpression * appendOpsToArg(const DIExpression *Expr, ArrayRef< uint64_t > Ops, unsigned ArgNo, bool StackValue=false)
Create a copy of Expr by appending the given list of Ops to each instance of the operand DW_OP_LLVM_a...
static DIExpression * prepend(const DIExpression *Expr, uint8_t Flags, int64_t Offset=0)
Prepend DIExpr with a deref and offset operation and optionally turn it into a stack value or/and an ...
bool hasTrivialDestructor() const
Check whether this has a trivial destructor.
Utility class for floating point operations which can have information about relaxed accuracy require...
Convenience struct for specifying and reasoning about fast-math flags.
LLVMContext & getContext() const
getContext - Return a reference to the LLVMContext associated with this function.
bool hasStoreToStackSlot(const MachineInstr &MI, SmallVectorImpl< const MachineMemOperand * > &Accesses) const override
Check if the instruction or the bundle of instructions has store to stack slots.
bool areMemAccessesTriviallyDisjoint(const MachineInstr &MIa, const MachineInstr &MIb) const override
bool hasLoadFromStackSlot(const MachineInstr &MI, SmallVectorImpl< const MachineMemOperand * > &Accesses) const override
Check if the instruction or the bundle of instructions has load from stack slots.
static bool isMemKind(unsigned Flag)
static StringRef getKindName(unsigned Kind)
static unsigned getNumOperandRegisters(unsigned Flag)
getNumOperandRegisters - Extract the number of registers field from the inline asm operand flag.
static StringRef getMemConstraintName(unsigned Constraint)
static unsigned getMemoryConstraintID(unsigned Flag)
@ Kind_RegDefEarlyClobber
static bool isUseOperandTiedToDef(unsigned Flag, unsigned &Idx)
isUseOperandTiedToDef - Return true if the flag of the inline asm operand indicates it is an use oper...
static bool isImmKind(unsigned Flag)
static bool hasRegClassConstraint(unsigned Flag, unsigned &RC)
hasRegClassConstraint - Returns true if the flag contains a register class constraint.
static unsigned getKind(unsigned Flags)
constexpr bool isValid() const
This is an important class for using LLVM in a threaded context.
void emitError(uint64_t LocCookie, const Twine &ErrorStr)
emitError - Emit an error message to the currently installed error handler with optional location inf...
Describe properties that are true of each instruction in the target description file.
unsigned getNumOperands() const
Return the number of declared MachineOperands for this MachineInstruction.
ArrayRef< MCOperandInfo > operands() const
unsigned getNumDefs() const
Return the number of MachineOperands that are register definitions.
int getOperandConstraint(unsigned OpNum, MCOI::OperandConstraint Constraint) const
Returns the value of the specified operand constraint if it is present.
ArrayRef< MCPhysReg > implicit_defs() const
Return a list of registers that are potentially written by any instance of this machine instruction.
bool isPredicable() const
Return true if this instruction has a predicate operand that controls execution.
bool isVariadic() const
Return true if this instruction can have a variable number of operands.
ArrayRef< MCPhysReg > implicit_uses() const
Return a list of registers that are potentially read by any instance of this machine instruction.
MCRegAliasIterator enumerates all registers aliasing Reg.
bool isSubRegister(MCRegister RegA, MCRegister RegB) const
Returns true if RegB is a sub-register of RegA.
bool isSuperRegister(MCRegister RegA, MCRegister RegB) const
Returns true if RegB is a super-register of RegA.
Wrapper class representing physical registers. Should be passed by value.
MCSymbol - Instances of this class represent a symbol name in the MC file, and MCSymbols are created ...
const MDOperand & getOperand(unsigned I) const
unsigned getNumOperands() const
Return number of MDNode operands.
bool isValid() const
isValid - Returns true until all the operands have been visited.
MachineInstr * remove_instr(MachineInstr *I)
Remove the possibly bundled instruction from the instruction list without deleting it.
instr_iterator insert(instr_iterator I, MachineInstr *M)
Insert MI into the instruction list before I, possibly inside a bundle.
instr_iterator erase_instr(MachineInstr *I)
Remove an instruction from the instruction list and delete it.
void printAsOperand(raw_ostream &OS, bool PrintType=true) const
MachineInstr * remove(MachineInstr *I)
Remove the unbundled instruction from the instruction list without deleting it.
void print(raw_ostream &OS, const SlotIndexes *=nullptr, bool IsStandalone=true) const
const MachineFunction * getParent() const
Return the MachineFunction containing this basic block.
instr_iterator erase(instr_iterator I)
Remove an instruction from the instruction list and delete it.
void splice(iterator Where, MachineBasicBlock *Other, iterator From)
Take an instruction from MBB 'Other' at the position From, and insert it into this MBB right before '...
The MachineFrameInfo class represents an abstract stack frame until prolog/epilog code is inserted.
bool isSpillSlotObjectIndex(int ObjectIdx) const
Returns true if the specified index corresponds to a spill slot.
const TargetSubtargetInfo & getSubtarget() const
getSubtarget - Return the subtarget for which this machine code is being compiled.
unsigned getNewDebugInstrNum()
MachineFrameInfo & getFrameInfo()
getFrameInfo - Return the frame info object for the current function.
void deallocateOperandArray(OperandCapacity Cap, MachineOperand *Array)
Dellocate an array of MachineOperands and recycle the memory.
MachineOperand * allocateOperandArray(OperandCapacity Cap)
Allocate an array of MachineOperands.
MachineRegisterInfo & getRegInfo()
getRegInfo - Return information about the registers currently in use.
Function & getFunction()
Return the LLVM function that this machine code represents.
MachineModuleInfo & getMMI() const
MachineInstr::ExtraInfo * createMIExtraInfo(ArrayRef< MachineMemOperand * > MMOs, MCSymbol *PreInstrSymbol=nullptr, MCSymbol *PostInstrSymbol=nullptr, MDNode *HeapAllocMarker=nullptr, MDNode *PCSections=nullptr, uint32_t CFIType=0)
Allocate and construct an extra info structure for a MachineInstr.
const MachineInstrBuilder & addImm(int64_t Val) const
Add a new immediate operand.
const MachineInstrBuilder & add(const MachineOperand &MO) const
const MachineInstrBuilder & addMetadata(const MDNode *MD) const
const MachineInstrBuilder & addFrameIndex(int Idx) const
const MachineInstrBuilder & addReg(Register RegNo, unsigned flags=0, unsigned SubReg=0) const
Add a new virtual register operand.
Representation of each machine instruction.
int findRegisterUseOperandIdx(Register Reg, bool isKill=false, const TargetRegisterInfo *TRI=nullptr) const
Returns the operand index that is a use of the specific register or -1 if it is not found.
bool mayRaiseFPException() const
Return true if this instruction could possibly raise a floating-point exception.
unsigned getOpcode() const
Returns the opcode of this MachineInstr.
void setRegisterDefReadUndef(Register Reg, bool IsUndef=true)
Mark all subregister defs of register Reg with the undef flag.
static iterator_range< filter_iterator< Operand *, std::function< bool(Operand &Op)> > > getDebugOperandsForReg(Instruction *MI, Register Reg)
Returns a range of all of the operands that correspond to a debug use of Reg.
uint16_t mergeFlagsWith(const MachineInstr &Other) const
Return the MIFlags which represent both MachineInstrs.
bool isDebugValueList() const
void bundleWithPred()
Bundle this instruction with its predecessor.
bool isSafeToMove(AAResults *AA, bool &SawStore) const
Return true if it is safe to move this instruction.
bool isTerminator(QueryType Type=AnyInBundle) const
Returns true if this instruction part of the terminator for a basic block.
bool mayLoadOrStore(QueryType Type=AnyInBundle) const
Return true if this instruction could possibly read or modify memory.
void setCFIType(MachineFunction &MF, uint32_t Type)
Set the CFI type for the instruction.
MachineInstr * removeFromParent()
Unlink 'this' from the containing basic block, and return it without deleting it.
iterator_range< mop_iterator > debug_operands()
Returns a range over all operands that are used to determine the variable location for this DBG_VALUE...
const MachineBasicBlock * getParent() const
void bundleWithSucc()
Bundle this instruction with its successor.
uint32_t getCFIType() const
Helper to extract a CFI type hash if one has been added.
int findRegisterDefOperandIdx(Register Reg, bool isDead=false, bool Overlap=false, const TargetRegisterInfo *TRI=nullptr) const
Returns the operand index that is a def of the specified register or -1 if it is not found.
bool isDebugLabel() const
void setPreInstrSymbol(MachineFunction &MF, MCSymbol *Symbol)
Set a symbol that will be emitted just prior to the instruction itself.
bool hasProperty(unsigned MCFlag, QueryType Type=AnyInBundle) const
Return true if the instruction (or in the case of a bundle, the instructions inside the bundle) has t...
bool isDereferenceableInvariantLoad() const
Return true if this load instruction never traps and points to a memory location whose value doesn't ...
void setFlags(unsigned flags)
QueryType
API for querying MachineInstr properties.
void addImplicitDefUseOperands(MachineFunction &MF)
Add all implicit def and use operands to this instruction.
bool isCall(QueryType Type=AnyInBundle) const
bool getFlag(MIFlag Flag) const
Return whether an MI flag is set.
const MachineOperand & getDebugExpressionOp() const
Return the operand for the complex address expression referenced by this DBG_VALUE instruction.
std::pair< bool, bool > readsWritesVirtualRegister(Register Reg, SmallVectorImpl< unsigned > *Ops=nullptr) const
Return a pair of bools (reads, writes) indicating if this instruction reads or writes Reg.
bool isRegTiedToDefOperand(unsigned UseOpIdx, unsigned *DefOpIdx=nullptr) const
Return true if the use operand of the specified index is tied to a def operand.
void cloneMemRefs(MachineFunction &MF, const MachineInstr &MI)
Clone another MachineInstr's memory reference descriptor list and replace ours with it.
const TargetRegisterClass * getRegClassConstraintEffectForVReg(Register Reg, const TargetRegisterClass *CurRC, const TargetInstrInfo *TII, const TargetRegisterInfo *TRI, bool ExploreBundle=false) const
Applies the constraints (def/use) implied by this MI on Reg to the given CurRC.
bool isDebugInstr() const
unsigned getNumDebugOperands() const
Returns the total number of operands which are debug locations.
unsigned getNumOperands() const
Retuns the total number of operands.
void addOperand(MachineFunction &MF, const MachineOperand &Op)
Add the specified operand to the instruction.
MachineInstr * removeFromBundle()
Unlink this instruction from its basic block and return it without deleting it.
void dumpr(const MachineRegisterInfo &MRI, unsigned MaxDepth=UINT_MAX) const
Print on dbgs() the current instruction and the instructions defining its operands and so on until we...
void copyIRFlags(const Instruction &I)
Copy all flags to MachineInst MIFlags.
bool isDebugValueLike() const
bool memoperands_empty() const
Return true if we don't have any memory operands which described the memory access done by this instr...
mmo_iterator memoperands_end() const
Access to memory operands of the instruction.
void collectDebugValues(SmallVectorImpl< MachineInstr * > &DbgValues)
Scan instructions immediately following MI and collect any matching DBG_VALUEs.
bool mayAlias(AAResults *AA, const MachineInstr &Other, bool UseTBAA) const
Returns true if this instruction's memory access aliases the memory access of Other.
unsigned getNumExplicitOperands() const
Returns the number of non-implicit operands.
void setMemRefs(MachineFunction &MF, ArrayRef< MachineMemOperand * > MemRefs)
Assign this MachineInstr's memory reference descriptor list.
bool isBundledWithPred() const
Return true if this instruction is part of a bundle, and it is not the first instruction in the bundl...
std::optional< unsigned > getFoldedRestoreSize(const TargetInstrInfo *TII) const
Return a valid size if the instruction is a folded restore instruction.
void unbundleFromPred()
Break bundle above this instruction.
void copyImplicitOps(MachineFunction &MF, const MachineInstr &MI)
Copy implicit register operands from specified instruction to this instruction.
bool mayLoad(QueryType Type=AnyInBundle) const
Return true if this instruction could possibly read memory.
bool isStackAligningInlineAsm() const
void dropMemRefs(MachineFunction &MF)
Clear this MachineInstr's memory reference descriptor list.
bool shouldUpdateCallSiteInfo() const
Return true if copying, moving, or erasing this instruction requires updating Call Site Info (see cop...
MDNode * getPCSections() const
Helper to extract PCSections metadata target sections.
bool isCFIInstruction() const
int findFirstPredOperandIdx() const
Find the index of the first operand in the operand list that is used to represent the predicate.
const MCInstrDesc & getDesc() const
Returns the target instruction descriptor of this MachineInstr.
unsigned getBundleSize() const
Return the number of instructions inside the MI bundle, excluding the bundle header.
void cloneMergedMemRefs(MachineFunction &MF, ArrayRef< const MachineInstr * > MIs)
Clone the merge of multiple MachineInstrs' memory reference descriptors list and replace ours with it...
unsigned getNumMemOperands() const
Return the number of memory operands.
static uint16_t copyFlagsFromInstruction(const Instruction &I)
void clearFlag(MIFlag Flag)
clearFlag - Clear a MI flag.
unsigned isConstantValuePHI() const
If the specified instruction is a PHI that always merges together the same virtual register,...
const TargetRegisterClass * getRegClassConstraintEffect(unsigned OpIdx, const TargetRegisterClass *CurRC, const TargetInstrInfo *TII, const TargetRegisterInfo *TRI) const
Applies the constraints (def/use) implied by the OpIdx operand to the given CurRC.
bool isOperandSubregIdx(unsigned OpIdx) const
Return true if operand OpIdx is a subregister index.
InlineAsm::AsmDialect getInlineAsmDialect() const
bool hasUnmodeledSideEffects() const
Return true if this instruction has side effects that are not modeled by mayLoad / mayStore,...
bool isEquivalentDbgInstr(const MachineInstr &Other) const
Returns true if this instruction is a debug instruction that represents an identical debug value to O...
const DILabel * getDebugLabel() const
Return the debug label referenced by this DBG_LABEL instruction.
void untieRegOperand(unsigned OpIdx)
Break any tie involving OpIdx.
unsigned getNumExplicitDefs() const
Returns the number of non-implicit definitions.
void eraseFromBundle()
Unlink 'this' form its basic block and delete it.
iterator_range< mop_iterator > operands()
void setHeapAllocMarker(MachineFunction &MF, MDNode *MD)
Set a marker on instructions that denotes where we should create and emit heap alloc site labels.
const DILocalVariable * getDebugVariable() const
Return the debug variable referenced by this DBG_VALUE instruction.
bool hasComplexRegisterTies() const
Return true when an instruction has tied register that can't be determined by the instruction's descr...
LLT getTypeToPrint(unsigned OpIdx, SmallBitVector &PrintedTypes, const MachineRegisterInfo &MRI) const
Debugging supportDetermine the generic type to be printed (if needed) on uses and defs.
void substituteRegister(Register FromReg, Register ToReg, unsigned SubIdx, const TargetRegisterInfo &RegInfo)
Replace all occurrences of FromReg with ToReg:SubIdx, properly composing subreg indices where necessa...
unsigned findTiedOperandIdx(unsigned OpIdx) const
Given the index of a tied register operand, find the operand it is tied to.
void tieOperands(unsigned DefIdx, unsigned UseIdx)
Add a tie between the register operands at DefIdx and UseIdx.
mmo_iterator memoperands_begin() const
Access to memory operands of the instruction.
void cloneInstrSymbols(MachineFunction &MF, const MachineInstr &MI)
Clone another MachineInstr's pre- and post- instruction symbols and replace ours with it.
void changeDebugValuesDefReg(Register Reg)
Find all DBG_VALUEs that point to the register def in this instruction and point them to Reg instead.
bool isIdenticalTo(const MachineInstr &Other, MICheckType Check=CheckDefs) const
Return true if this instruction is identical to Other.
bool hasOrderedMemoryRef() const
Return true if this instruction may have an ordered or volatile memory reference, or if the informati...
const MachineFunction * getMF() const
Return the function that contains the basic block that this instruction belongs to.
std::optional< unsigned > getRestoreSize(const TargetInstrInfo *TII) const
Return a valid size if the instruction is a restore instruction.
std::optional< unsigned > getFoldedSpillSize(const TargetInstrInfo *TII) const
Return a valid size if the instruction is a folded spill instruction.
const DIExpression * getDebugExpression() const
Return the complex address expression referenced by this DBG_VALUE instruction.
ArrayRef< MachineMemOperand * > memoperands() const
Access to memory operands of the instruction.
void print(raw_ostream &OS, bool IsStandalone=true, bool SkipOpers=false, bool SkipDebugLoc=false, bool AddNewLine=true, const TargetInstrInfo *TII=nullptr) const
Print this MI to OS.
bool isNonListDebugValue() const
std::optional< unsigned > getSpillSize(const TargetInstrInfo *TII) const
Return a valid size if the instruction is a spill instruction.
bool isLoadFoldBarrier() const
Returns true if it is illegal to fold a load across this instruction.
bool mayStore(QueryType Type=AnyInBundle) const
Return true if this instruction could possibly modify memory.
void setFlag(MIFlag Flag)
Set a MI flag.
const DebugLoc & getDebugLoc() const
Returns the debug location id of this MachineInstr.
const MachineOperand & getDebugVariableOp() const
Return the operand for the debug variable referenced by this DBG_VALUE instruction.
void eraseFromParent()
Unlink 'this' from the containing basic block and delete it.
void setPhysRegsDeadExcept(ArrayRef< Register > UsedRegs, const TargetRegisterInfo &TRI)
Mark every physreg used by this instruction as dead except those in the UsedRegs list.
bool isCandidateForCallSiteEntry(QueryType Type=IgnoreBundle) const
Return true if this is a call instruction that may have an associated call site entry in the debug in...
void removeOperand(unsigned OpNo)
Erase an operand from an instruction, leaving it with one fewer operand than it started with.
MCSymbol * getPreInstrSymbol() const
Helper to extract a pre-instruction symbol if one has been added.
bool addRegisterKilled(Register IncomingReg, const TargetRegisterInfo *RegInfo, bool AddIfNotFound=false)
We have determined MI kills a register.
void setPostInstrSymbol(MachineFunction &MF, MCSymbol *Symbol)
Set a symbol that will be emitted just after the instruction itself.
bool isDebugValue() const
const MachineOperand & getDebugOffset() const
Return the operand containing the offset to be used if this DBG_VALUE instruction is indirect; will b...
MachineOperand & getDebugOperand(unsigned Index)
bool isBundledWithSucc() const
Return true if this instruction is part of a bundle, and it is not the last instruction in the bundle...
void addRegisterDefined(Register Reg, const TargetRegisterInfo *RegInfo=nullptr)
We have determined MI defines a register.
MDNode * getHeapAllocMarker() const
Helper to extract a heap alloc marker if one has been added.
unsigned getDebugInstrNum()
Fetch the instruction number of this MachineInstr.
uint16_t getFlags() const
Return the MI flags bitvector.
void clearRegisterDeads(Register Reg)
Clear all dead flags on operands defining register Reg.
void clearRegisterKills(Register Reg, const TargetRegisterInfo *RegInfo)
Clear all kill flags affecting Reg.
const MachineOperand & getOperand(unsigned i) const
bool isPseudoProbe() const
bool hasRegisterImplicitUseOperand(Register Reg) const
Returns true if the MachineInstr has an implicit-use operand of exactly the given register (not consi...
MCSymbol * getPostInstrSymbol() const
Helper to extract a post-instruction symbol if one has been added.
void unbundleFromSucc()
Break bundle below this instruction.
void clearKillInfo()
Clears kill flags on all operands.
bool isDebugEntryValue() const
A DBG_VALUE is an entry value iff its debug expression contains the DW_OP_LLVM_entry_value operation.
bool isIndirectDebugValue() const
A DBG_VALUE is indirect iff the location operand is a register and the offset operand is an immediate...
unsigned getNumDefs() const
Returns the total number of definitions.
void emitError(StringRef Msg) const
Emit an error referring to the source location of this instruction.
void setPCSections(MachineFunction &MF, MDNode *MD)
MachineOperand * findRegisterDefOperand(Register Reg, bool isDead=false, bool Overlap=false, const TargetRegisterInfo *TRI=nullptr)
Wrapper for findRegisterDefOperandIdx, it returns a pointer to the MachineOperand rather than an inde...
bool isVariadic(QueryType Type=IgnoreBundle) const
Return true if this instruction can have a variable number of operands.
int findInlineAsmFlagIdx(unsigned OpIdx, unsigned *GroupNo=nullptr) const
Find the index of the flag word operand that corresponds to operand OpIdx on an inline asm instructio...
bool allDefsAreDead() const
Return true if all the defs of this instruction are dead.
const TargetRegisterClass * getRegClassConstraint(unsigned OpIdx, const TargetInstrInfo *TII, const TargetRegisterInfo *TRI) const
Compute the static register class constraint for operand OpIdx.
void moveBefore(MachineInstr *MovePos)
Move the instruction before MovePos.
void addMemOperand(MachineFunction &MF, MachineMemOperand *MO)
Add a MachineMemOperand to the machine instruction.
bool addRegisterDead(Register Reg, const TargetRegisterInfo *RegInfo, bool AddIfNotFound=false)
We have determined MI defined a register without a use.
A description of a memory reference used in the backend.
const PseudoSourceValue * getPseudoValue() const
bool isUnordered() const
Returns true if this memory operation doesn't have any ordering constraints other than normal aliasin...
uint64_t getSize() const
Return the size in bytes of the memory reference.
AAMDNodes getAAInfo() const
Return the AA tags for the memory reference.
const Value * getValue() const
Return the base address of the memory access.
int64_t getOffset() const
For normal values, this is a byte offset added to the base address.
const Module * getModule() const
MachineOperand class - Representation of each machine instruction operand.
unsigned getSubReg() const
void substVirtReg(Register Reg, unsigned SubIdx, const TargetRegisterInfo &)
substVirtReg - Substitute the current register with the virtual subregister Reg:SubReg.
static void printSubRegIdx(raw_ostream &OS, uint64_t Index, const TargetRegisterInfo *TRI)
Print a subreg index operand.
bool isReg() const
isReg - Tests if this is a MO_Register operand.
bool isRegMask() const
isRegMask - Tests if this is a MO_RegisterMask operand.
const MDNode * getMetadata() const
void setIsDead(bool Val=true)
void setMetadata(const MDNode *MD)
bool isImm() const
isImm - Tests if this is a MO_Immediate operand.
void ChangeToImmediate(int64_t ImmVal, unsigned TargetFlags=0)
ChangeToImmediate - Replace this operand with a new immediate operand of the specified value.
bool isMetadata() const
isMetadata - Tests if this is a MO_Metadata operand.
void setIsKill(bool Val=true)
MachineInstr * getParent()
getParent - Return the instruction that this operand belongs to.
void substPhysReg(MCRegister Reg, const TargetRegisterInfo &)
substPhysReg - Substitute the current register with the physical register Reg, taking any existing Su...
void setIsEarlyClobber(bool Val=true)
void setIsUndef(bool Val=true)
void setIsDebug(bool Val=true)
Register getReg() const
getReg - Returns the register number.
bool isIdenticalTo(const MachineOperand &Other) const
Returns true if this operand is identical to the specified operand except for liveness related flags ...
static bool clobbersPhysReg(const uint32_t *RegMask, MCRegister PhysReg)
clobbersPhysReg - Returns true if this RegMask clobbers PhysReg.
void print(raw_ostream &os, const TargetRegisterInfo *TRI=nullptr, const TargetIntrinsicInfo *IntrinsicInfo=nullptr) const
Print the MachineOperand to os.
static void printSymbol(raw_ostream &OS, MCSymbol &Sym)
Print a MCSymbol as an operand.
static MachineOperand CreateReg(Register Reg, bool isDef, bool isImp=false, bool isKill=false, bool isDead=false, bool isUndef=false, bool isEarlyClobber=false, unsigned SubReg=0, bool isDebug=false, bool isInternalRead=false, bool isRenamable=false)
MachineRegisterInfo - Keep track of information for virtual and physical registers,...
Representation for a specific memory location.
Manage lifetime of a slot tracker for printing IR.
void incorporateFunction(const Function &F)
Incorporate the given function.
A Module instance is used to store all the information related to an LLVM module.
LLVMContext & getContext() const
Get the global data context.
Utility class for integer operators which may exhibit overflow - Add, Sub, Mul, and Shl.
A udiv or sdiv instruction, which can be marked as "exact", indicating that no bits are destroyed.
Special value supplied for machine level alias analysis.
virtual bool mayAlias(const MachineFrameInfo *) const
Return true if the memory pointed to by this PseudoSourceValue can ever alias an LLVM IR Value.
Wrapper class representing virtual and physical registers.
bool isPhysical() const
Return true if the specified register number is in the physical register namespace.
bool isVirtual() const
Return true if the specified register number is in the virtual register namespace.
This is a 'bitvector' (really, a variable-sized bit array), optimized for the case when the array is ...
A templated base class for SmallPtrSet which provides the typesafe interface that is common across al...
std::pair< iterator, bool > insert(PtrType Ptr)
Inserts Ptr if and only if there is no element in the container equal to Ptr.
SmallPtrSet - This class implements a set which is optimized for holding SmallSize or less elements.
This class consists of common code factored out of the SmallVector class to reduce code duplication b...
void reserve(size_type N)
void append(ItTy in_start, ItTy in_end)
Add the specified range to the end of the SmallVector.
void push_back(const T &Elt)
This is a 'vector' (really, a variable-sized array), optimized for the case when the array is small.
static unsigned getNextMetaArgIdx(const MachineInstr *MI, unsigned CurIdx)
Get index of next meta operand.
MI-level Statepoint operands.
int getFirstGCPtrIdx()
Get index of first GC pointer operand of -1 if there are none.
StringRef - Represent a constant reference to a string, i.e.
TargetInstrInfo - Interface to description of machine instruction set.
TargetIntrinsicInfo - Interface to description of machine instruction set.
TargetRegisterInfo base class - We assume that the target defines a static array of TargetRegisterDes...
MCRegister getSubReg(MCRegister Reg, unsigned Idx) const
Returns the physical register number of sub-register "Index" for physical register RegNo.
bool regsOverlap(Register RegA, Register RegB) const
Returns true if the two registers are equal or alias each other.
virtual const TargetInstrInfo * getInstrInfo() const
The instances of the Type class are immutable: once they are created, they are never changed.
A Use represents the edge between a Value definition and its users.
LLVM Value Representation.
Iterator for intrusive lists based on ilist_node.
self_iterator getIterator()
This class implements an extremely fast bulk output stream that can only output to a stream.
#define llvm_unreachable(msg)
Marks that the current location is not supposed to be reachable.
MCInstrDesc const & getDesc(MCInstrInfo const &MCII, MCInst const &MCI)
This is an optimization pass for GlobalISel generic memory operations.
auto drop_begin(T &&RangeOrContainer, size_t N=1)
Return a range covering RangeOrContainer with the first N elements excluded.
hash_code hash_value(const FixedPointSemantics &Val)
formatted_raw_ostream & fdbgs()
fdbgs() - This returns a reference to a formatted_raw_ostream for debug output.
MachineInstrBuilder BuildMI(MachineFunction &MF, const MIMetadata &MIMD, const MCInstrDesc &MCID)
Builder interface. Specify how to create the initial instruction itself.
void updateDbgValueForSpill(MachineInstr &Orig, int FrameIndex, Register Reg)
Update a DBG_VALUE whose value has been spilled to FrameIndex.
bool any_of(R &&range, UnaryPredicate P)
Provide wrappers to std::any_of which take ranges instead of having to pass begin/end explicitly.
iterator_range< pointee_iterator< WrappedIteratorT > > make_pointee_range(RangeT &&Range)
raw_ostream & dbgs()
dbgs() - This returns a reference to a raw_ostream for debugging messages.
bool none_of(R &&Range, UnaryPredicate P)
Provide wrappers to std::none_of which take ranges instead of having to pass begin/end explicitly.
void report_fatal_error(Error Err, bool gen_crash_diag=true)
Report a serious error, calling any installed error handler.
OutputIt move(R &&Range, OutputIt Out)
Provide wrappers to std::move which take ranges instead of having to pass begin/end explicitly.
MachineInstr * buildDbgValueForSpill(MachineBasicBlock &BB, MachineBasicBlock::iterator I, const MachineInstr &Orig, int FrameIndex, Register SpillReg)
Clone a DBG_VALUE whose value has been spilled to FrameIndex.
bool is_contained(R &&Range, const E &Element)
Returns true if Element is found in Range.
hash_code hash_combine_range(InputIteratorT first, InputIteratorT last)
Compute a hash_code for a sequence of values.
A collection of metadata nodes that might be associated with a memory access used by the alias-analys...
static unsigned getHashValue(const MachineInstr *const &MI)