LLVM 20.0.0git
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#include "llvm/IR/User.h"
Classes | |
struct | const_value_op_iterator |
struct | value_op_iterator |
Iterator for directly iterating over the operand Values. More... | |
Public Types | |
using | op_iterator = Use * |
using | const_op_iterator = const Use * |
using | op_range = iterator_range< op_iterator > |
using | const_op_range = iterator_range< const_op_iterator > |
Public Types inherited from llvm::Value | |
enum | ValueTy |
Concrete subclass of this. More... | |
using | use_iterator = use_iterator_impl< Use > |
using | const_use_iterator = use_iterator_impl< const Use > |
using | user_iterator = user_iterator_impl< User > |
using | const_user_iterator = user_iterator_impl< const User > |
Public Member Functions | |
User (const User &)=delete | |
void | operator delete (void *Usr) |
Free memory allocated for User and Use objects. | |
void | operator delete (void *Usr, unsigned) |
Placement delete - required by std, called if the ctor throws. | |
void | operator delete (void *Usr, unsigned, unsigned) |
Placement delete - required by std, called if the ctor throws. | |
const Use * | getOperandList () const |
Use * | getOperandList () |
Value * | getOperand (unsigned i) const |
void | setOperand (unsigned i, Value *Val) |
const Use & | getOperandUse (unsigned i) const |
Use & | getOperandUse (unsigned i) |
unsigned | getNumOperands () const |
ArrayRef< const uint8_t > | getDescriptor () const |
Returns the descriptor co-allocated with this User instance. | |
MutableArrayRef< uint8_t > | getDescriptor () |
Returns the descriptor co-allocated with this User instance. | |
void | setGlobalVariableNumOperands (unsigned NumOps) |
Set the number of operands on a GlobalVariable. | |
void | setNumHungOffUseOperands (unsigned NumOps) |
Subclasses with hung off uses need to manage the operand count themselves. | |
bool | isDroppable () const |
A droppable user is a user for which uses can be dropped without affecting correctness and should be dropped rather than preventing a transformation from happening. | |
op_iterator | op_begin () |
const_op_iterator | op_begin () const |
op_iterator | op_end () |
const_op_iterator | op_end () const |
op_range | operands () |
const_op_range | operands () const |
value_op_iterator | value_op_begin () |
value_op_iterator | value_op_end () |
iterator_range< value_op_iterator > | operand_values () |
const_value_op_iterator | value_op_begin () const |
const_value_op_iterator | value_op_end () const |
iterator_range< const_value_op_iterator > | operand_values () const |
void | dropAllReferences () |
Drop all references to operands. | |
bool | replaceUsesOfWith (Value *From, Value *To) |
Replace uses of one Value with another. | |
Public Member Functions inherited from llvm::Value | |
Value (const Value &)=delete | |
Value & | operator= (const Value &)=delete |
void | deleteValue () |
Delete a pointer to a generic Value. | |
void | dump () const |
Support for debugging, callable in GDB: V->dump() | |
Type * | getType () const |
All values are typed, get the type of this value. | |
LLVMContext & | getContext () const |
All values hold a context through their type. | |
bool | hasName () const |
ValueName * | getValueName () const |
void | setValueName (ValueName *VN) |
StringRef | getName () const |
Return a constant reference to the value's name. | |
void | setName (const Twine &Name) |
Change the name of the value. | |
void | takeName (Value *V) |
Transfer the name from V to this value. | |
std::string | getNameOrAsOperand () const |
void | replaceAllUsesWith (Value *V) |
Change all uses of this to point to a new Value. | |
void | replaceNonMetadataUsesWith (Value *V) |
Change non-metadata uses of this to point to a new Value. | |
void | replaceUsesWithIf (Value *New, llvm::function_ref< bool(Use &U)> ShouldReplace) |
Go through the uses list for this definition and make each use point to "V" if the callback ShouldReplace returns true for the given Use. | |
void | replaceUsesOutsideBlock (Value *V, BasicBlock *BB) |
replaceUsesOutsideBlock - Go through the uses list for this definition and make each use point to "V" instead of "this" when the use is outside the block. | |
void | assertModuleIsMaterializedImpl () const |
void | assertModuleIsMaterialized () const |
bool | use_empty () const |
bool | materialized_use_empty () const |
use_iterator | materialized_use_begin () |
const_use_iterator | materialized_use_begin () const |
use_iterator | use_begin () |
const_use_iterator | use_begin () const |
use_iterator | use_end () |
const_use_iterator | use_end () const |
iterator_range< use_iterator > | materialized_uses () |
iterator_range< const_use_iterator > | materialized_uses () const |
iterator_range< use_iterator > | uses () |
iterator_range< const_use_iterator > | uses () const |
bool | user_empty () const |
user_iterator | materialized_user_begin () |
const_user_iterator | materialized_user_begin () const |
user_iterator | user_begin () |
const_user_iterator | user_begin () const |
user_iterator | user_end () |
const_user_iterator | user_end () const |
User * | user_back () |
const User * | user_back () const |
iterator_range< user_iterator > | materialized_users () |
iterator_range< const_user_iterator > | materialized_users () const |
iterator_range< user_iterator > | users () |
iterator_range< const_user_iterator > | users () const |
bool | hasOneUse () const |
Return true if there is exactly one use of this value. | |
bool | hasNUses (unsigned N) const |
Return true if this Value has exactly N uses. | |
bool | hasNUsesOrMore (unsigned N) const |
Return true if this value has N uses or more. | |
bool | hasOneUser () const |
Return true if there is exactly one user of this value. | |
Use * | getSingleUndroppableUse () |
Return true if there is exactly one use of this value that cannot be dropped. | |
const Use * | getSingleUndroppableUse () const |
User * | getUniqueUndroppableUser () |
Return true if there is exactly one unique user of this value that cannot be dropped (that user can have multiple uses of this value). | |
const User * | getUniqueUndroppableUser () const |
bool | hasNUndroppableUses (unsigned N) const |
Return true if there this value. | |
bool | hasNUndroppableUsesOrMore (unsigned N) const |
Return true if this value has N uses or more. | |
void | dropDroppableUses (llvm::function_ref< bool(const Use *)> ShouldDrop=[](const Use *) { return true;}) |
Remove every uses that can safely be removed. | |
void | dropDroppableUsesIn (User &Usr) |
Remove every use of this value in User that can safely be removed. | |
bool | isUsedInBasicBlock (const BasicBlock *BB) const |
Check if this value is used in the specified basic block. | |
unsigned | getNumUses () const |
This method computes the number of uses of this Value. | |
void | addUse (Use &U) |
This method should only be used by the Use class. | |
unsigned | getValueID () const |
Return an ID for the concrete type of this object. | |
unsigned | getRawSubclassOptionalData () const |
Return the raw optional flags value contained in this value. | |
void | clearSubclassOptionalData () |
Clear the optional flags contained in this value. | |
bool | hasSameSubclassOptionalData (const Value *V) const |
Check the optional flags for equality. | |
bool | hasValueHandle () const |
Return true if there is a value handle associated with this value. | |
bool | isUsedByMetadata () const |
Return true if there is metadata referencing this value. | |
bool | isSwiftError () const |
Return true if this value is a swifterror value. | |
const Value * | stripPointerCasts () const |
Strip off pointer casts, all-zero GEPs and address space casts. | |
Value * | stripPointerCasts () |
const Value * | stripPointerCastsAndAliases () const |
Strip off pointer casts, all-zero GEPs, address space casts, and aliases. | |
Value * | stripPointerCastsAndAliases () |
const Value * | stripPointerCastsSameRepresentation () const |
Strip off pointer casts, all-zero GEPs and address space casts but ensures the representation of the result stays the same. | |
Value * | stripPointerCastsSameRepresentation () |
const Value * | stripPointerCastsForAliasAnalysis () const |
Strip off pointer casts, all-zero GEPs, single-argument phi nodes and invariant group info. | |
Value * | stripPointerCastsForAliasAnalysis () |
const Value * | stripInBoundsConstantOffsets () const |
Strip off pointer casts and all-constant inbounds GEPs. | |
Value * | stripInBoundsConstantOffsets () |
const Value * | stripAndAccumulateConstantOffsets (const DataLayout &DL, APInt &Offset, bool AllowNonInbounds, bool AllowInvariantGroup=false, function_ref< bool(Value &Value, APInt &Offset)> ExternalAnalysis=nullptr) const |
Accumulate the constant offset this value has compared to a base pointer. | |
Value * | stripAndAccumulateConstantOffsets (const DataLayout &DL, APInt &Offset, bool AllowNonInbounds, bool AllowInvariantGroup=false) |
const Value * | stripAndAccumulateInBoundsConstantOffsets (const DataLayout &DL, APInt &Offset) const |
This is a wrapper around stripAndAccumulateConstantOffsets with the in-bounds requirement set to false. | |
Value * | stripAndAccumulateInBoundsConstantOffsets (const DataLayout &DL, APInt &Offset) |
const Value * | stripInBoundsOffsets (function_ref< void(const Value *)> Func=[](const Value *) {}) const |
Strip off pointer casts and inbounds GEPs. | |
Value * | stripInBoundsOffsets (function_ref< void(const Value *)> Func=[](const Value *) {}) |
std::optional< int64_t > | getPointerOffsetFrom (const Value *Other, const DataLayout &DL) const |
If this ptr is provably equal to Other plus a constant offset, return that offset in bytes. | |
bool | canBeFreed () const |
Return true if the memory object referred to by V can by freed in the scope for which the SSA value defining the allocation is statically defined. | |
uint64_t | getPointerDereferenceableBytes (const DataLayout &DL, bool &CanBeNull, bool &CanBeFreed) const |
Returns the number of bytes known to be dereferenceable for the pointer value. | |
Align | getPointerAlignment (const DataLayout &DL) const |
Returns an alignment of the pointer value. | |
const Value * | DoPHITranslation (const BasicBlock *CurBB, const BasicBlock *PredBB) const |
Translate PHI node to its predecessor from the given basic block. | |
Value * | DoPHITranslation (const BasicBlock *CurBB, const BasicBlock *PredBB) |
void | mutateType (Type *Ty) |
Mutate the type of this Value to be of the specified type. | |
template<class Compare > | |
void | sortUseList (Compare Cmp) |
Sort the use-list. | |
void | reverseUseList () |
Reverse the use-list. | |
void | print (raw_ostream &O, bool IsForDebug=false) const |
Implement operator<< on Value. | |
void | print (raw_ostream &O, ModuleSlotTracker &MST, bool IsForDebug=false) const |
void | printAsOperand (raw_ostream &O, bool PrintType=true, const Module *M=nullptr) const |
Print the name of this Value out to the specified raw_ostream. | |
void | printAsOperand (raw_ostream &O, bool PrintType, ModuleSlotTracker &MST) const |
Static Public Member Functions | |
static bool | classof (const Value *V) |
Static Public Member Functions inherited from llvm::Value | |
static void | dropDroppableUse (Use &U) |
Remove the droppable use U . | |
Protected Member Functions | |
void * | operator new (size_t Size) |
Allocate a User with an operand pointer co-allocated. | |
void * | operator new (size_t Size, unsigned Us) |
Allocate a User with the operands co-allocated. | |
void * | operator new (size_t Size, unsigned Us, unsigned DescBytes) |
Allocate a User with the operands co-allocated. | |
User (Type *ty, unsigned vty, Use *, unsigned NumOps) | |
void | allocHungoffUses (unsigned N, bool IsPhi=false) |
Allocate the array of Uses, followed by a pointer (with bottom bit set) to the User. | |
void | growHungoffUses (unsigned N, bool IsPhi=false) |
Grow the number of hung off uses. | |
~User ()=default | |
template<int Idx> | |
Use & | Op () |
template<int Idx> | |
const Use & | Op () const |
Protected Member Functions inherited from llvm::Value | |
Value (Type *Ty, unsigned scid) | |
~Value () | |
Value's destructor should be virtual by design, but that would require that Value and all of its subclasses have a vtable that effectively duplicates the information in the value ID. | |
void | getAllMetadata (SmallVectorImpl< std::pair< unsigned, MDNode * > > &MDs) const |
Appends all metadata attached to this value to MDs , sorting by KindID. | |
bool | hasMetadata () const |
Return true if this value has any metadata attached to it. | |
bool | eraseMetadata (unsigned KindID) |
Erase all metadata attachments with the given kind. | |
void | eraseMetadataIf (function_ref< bool(unsigned, MDNode *)> Pred) |
Erase all metadata attachments matching the given predicate. | |
void | clearMetadata () |
Erase all metadata attached to this Value. | |
MDNode * | getMetadataImpl (unsigned KindID) const |
Get metadata for the given kind, if any. | |
unsigned short | getSubclassDataFromValue () const |
void | setValueSubclassData (unsigned short D) |
MDNode * | getMetadata (unsigned KindID) const |
Get the current metadata attachments for the given kind, if any. | |
MDNode * | getMetadata (StringRef Kind) const |
void | getMetadata (unsigned KindID, SmallVectorImpl< MDNode * > &MDs) const |
Appends all attachments with the given ID to MDs in insertion order. | |
void | getMetadata (StringRef Kind, SmallVectorImpl< MDNode * > &MDs) const |
bool | hasMetadata (unsigned KindID) const |
Return true if this value has the given type of metadata attached. | |
bool | hasMetadata (StringRef Kind) const |
void | setMetadata (unsigned KindID, MDNode *Node) |
Set a particular kind of metadata attachment. | |
void | setMetadata (StringRef Kind, MDNode *Node) |
void | addMetadata (unsigned KindID, MDNode &MD) |
Add a metadata attachment. | |
void | addMetadata (StringRef Kind, MDNode &MD) |
Static Protected Member Functions | |
template<int Idx, typename U > | |
static Use & | OpFrom (const U *that) |
Friends | |
template<unsigned > | |
struct | HungoffOperandTraits |
Additional Inherited Members | |
Static Public Attributes inherited from llvm::Value | |
static constexpr unsigned | MaxAlignmentExponent = 32 |
The maximum alignment for instructions. | |
static constexpr uint64_t | MaximumAlignment = 1ULL << MaxAlignmentExponent |
Protected Types inherited from llvm::Value | |
enum | : unsigned { NumUserOperandsBits = 27 } |
The number of operands in the subclass. More... | |
Protected Attributes inherited from llvm::Value | |
unsigned char | SubclassOptionalData: 7 |
Hold subclass data that can be dropped. | |
unsigned | NumUserOperands: NumUserOperandsBits |
unsigned | IsUsedByMD: 1 |
unsigned | HasName: 1 |
unsigned | HasMetadata: 1 |
unsigned | HasHungOffUses: 1 |
unsigned | HasDescriptor: 1 |
using llvm::User::const_op_iterator = const Use* |
using llvm::User::op_iterator = Use* |
Definition at line 73 of file User.h.
References assert(), getOperandList(), llvm::Value::HasHungOffUses, llvm::Value::NumUserOperands, and llvm::Value::NumUserOperandsBits.
Referenced by llvm::slpvectorizer::BoUpSLP::vectorizeTree().
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protecteddefault |
Allocate the array of Uses, followed by a pointer (with bottom bit set) to the User.
IsPhi | identifies callers which are phi nodes and which need N BasicBlock* allocated along with N |
Definition at line 50 of file User.cpp.
References assert(), End, llvm::Value::HasHungOffUses, N, and llvm::size().
Referenced by llvm::MemoryPhi::allocHungoffUses(), llvm::PHINode::allocHungoffUses(), and growHungoffUses().
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inline |
Drop all references to operands.
This function is in charge of "letting go" of all objects that this User refers to. This allows one to 'delete' a whole class at a time, even though there may be circular references... First all references are dropped, and all use counts go to zero. Then everything is deleted for real. Note that no operations are valid on an object that has "dropped all references", except operator delete.
Definition at line 299 of file User.h.
References operands().
Referenced by llvm::GlobalVariable::dropAllReferences(), llvm::expandDivision(), llvm::expandDivisionUpTo32Bits(), llvm::expandDivisionUpTo64Bits(), expandFPToI(), expandIToFP(), llvm::expandRemainder(), llvm::expandRemainderUpTo32Bits(), llvm::expandRemainderUpTo64Bits(), llvm::MemorySSAUpdater::removeBlocks(), scalarize(), and llvm::MemorySSA::~MemorySSA().
MutableArrayRef< uint8_t > llvm::User::getDescriptor | ( | ) |
Returns the descriptor co-allocated with this User instance.
Definition at line 104 of file User.cpp.
References assert(), llvm::Value::HasDescriptor, and llvm::Value::HasHungOffUses.
Returns the descriptor co-allocated with this User instance.
Definition at line 99 of file User.cpp.
References getDescriptor().
Referenced by llvm::CallBase::bundle_op_info_begin(), llvm::CallBase::bundle_op_info_end(), and getDescriptor().
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inline |
Definition at line 191 of file User.h.
References llvm::Value::NumUserOperands.
Referenced by llvm::SwitchInst::addCase(), llvm::LandingPadInst::addClause(), llvm::IndirectBrInst::addDestination(), llvm::CatchSwitchInst::addHandler(), argVectorFlatten(), canReplaceGEPIdxWithZero(), canSinkInstructions(), llvm::FuncletPadInst::cloneImpl(), llvm::GetElementPtrInst::cloneImpl(), llvm::CallInst::cloneImpl(), llvm::ReturnInst::cloneImpl(), llvm::BranchInst::cloneImpl(), llvm::InvokeInst::cloneImpl(), llvm::CallBrInst::cloneImpl(), llvm::CatchReturnInst::cloneImpl(), llvm::CleanupReturnInst::cloneImpl(), llvm::FunctionComparator::cmpConstants(), CollectSubexprs(), CombineBaseUpdate(), detectShiftUntilLessThanIdiom(), emitGlobalConstantArray(), emitGlobalConstantStruct(), llvm::Evaluator::EvaluateFunction(), llvm::AArch64TargetLowering::fallBackToDAGISel(), llvm::RISCVTargetLowering::fallBackToDAGISel(), FindUsedValues(), findUsedValues(), llvm::InstCombinerImpl::foldGEPICmp(), llvm::InstCombinerImpl::foldPHIArgGEPIntoPHI(), llvm::InstCombinerImpl::foldSelectOpOp(), llvm::DbgAssignIntrinsic::getAddress(), llvm::ConstantExpr::getAsInstruction(), getBranchWeight(), getGEPInductionOperand(), getLoopPhiForCounter(), llvm::SystemZTTIImpl::getMemoryOpCost(), llvm::GetElementPtrInst::getNumIndices(), llvm::GEPOperator::getNumIndices(), llvm::Function::getPersonalityFn(), llvm::Value::getPointerOffsetFrom(), llvm::Function::getPrefixData(), llvm::Function::getPrologueData(), llvm::ConstantVector::getSplatValue(), llvm::ConstantExpr::getWithOperands(), growHungoffUses(), llvm::GetElementPtrInst::hasAllConstantIndices(), llvm::GetElementPtrInst::hasAllZeroIndices(), llvm::GetElementPtrInst::hasIndices(), llvm::GEPOperator::hasIndices(), isEmptyXXStructor(), isHighCostExpansion(), llvm::Instruction::isIdenticalToWhenDefined(), isNotUsedOrFoldableInLoop(), llvm::isSafeToSpeculativelyExecuteWithOpcode(), llvm::Instruction::isSameOperationAs(), llvm::VariadicOperandTraits< SubClass, MINARITY >::op_begin(), llvm::orc::CtorDtorIterator::operator*(), parseGlobalCtors(), llvm::PPCTargetLowering::PerformDAGCombine(), llvm::SwitchInst::removeCase(), llvm::IndirectBrInst::removeDestination(), removeGlobalCtors(), llvm::CatchSwitchInst::removeHandler(), llvm::PHINode::removeIncomingValue(), llvm::PHINode::removeIncomingValueIf(), replaceUsesOfWith(), llvm::VPValue::replaceUsesWithIf(), llvm::DAGTypeLegalizer::run(), llvm::ExecutionEngine::runStaticConstructorsDestructors(), sinkLastInstruction(), upgradeAMDGCNIntrinsicCall(), llvm::UpgradeIntrinsicCall(), vectorPseudoHasAllNBitUsers(), and VisitGlobalVariableForEmission().
Definition at line 169 of file User.h.
References assert(), getOperandList(), and llvm::Value::NumUserOperands.
Referenced by llvm::RecurrenceDescriptor::AddReductionVar(), AddReturnAttributes(), llvm::LanaiInstrInfo::analyzeBranch(), areIdenticalUpToCommutativity(), argVectorFlatten(), llvm::CanonicalLoopInfo::assertOK(), BreakUpSubtract(), canEvaluateShiftedShift(), canFoldTermCondOfLoop(), CanGenerateTest(), canonicalizeBitCastExtElt(), canonicalizeInsertSplat(), canonicalizeSaturatedAdd(), canonicalizeSaturatedSubtract(), canPHITrans(), canReplaceGEPIdxWithZero(), canSinkInstructions(), canUseShiftPair(), CheckForPhysRegDependency(), llvm::SITargetLowering::checkForPhysRegDependency(), checkIfSafeAddSequence(), checkOrAndOpImpliedByOther(), llvm::AllocaInst::cloneImpl(), llvm::LoadInst::cloneImpl(), llvm::StoreInst::cloneImpl(), llvm::AtomicCmpXchgInst::cloneImpl(), llvm::AtomicRMWInst::cloneImpl(), llvm::SelectInst::cloneImpl(), llvm::VAArgInst::cloneImpl(), llvm::ExtractElementInst::cloneImpl(), llvm::InsertElementInst::cloneImpl(), llvm::ShuffleVectorInst::cloneImpl(), llvm::TruncInst::cloneImpl(), llvm::ZExtInst::cloneImpl(), llvm::SExtInst::cloneImpl(), llvm::FPTruncInst::cloneImpl(), llvm::FPExtInst::cloneImpl(), llvm::UIToFPInst::cloneImpl(), llvm::SIToFPInst::cloneImpl(), llvm::FPToUIInst::cloneImpl(), llvm::FPToSIInst::cloneImpl(), llvm::IntToPtrInst::cloneImpl(), llvm::PtrToIntInst::cloneImpl(), llvm::BitCastInst::cloneImpl(), llvm::AddrSpaceCastInst::cloneImpl(), llvm::FreezeInst::cloneImpl(), llvm::FunctionComparator::cmpConstants(), collectShuffleElements(), collectSingleShuffleElements(), CollectSubexprs(), CombineBaseUpdate(), combineScalarToVector(), combineTargetShuffle(), llvm::InstCombinerImpl::commonCastTransforms(), llvm::InstCombinerImpl::commonShiftTransforms(), compareCmp(), computeKnownBitsFromOperator(), computeUnlikelySuccessors(), llvm::ConstantFoldCastOperand(), constantFoldUser(), ConvertShiftToMul(), createReplacement(), createTblForTrunc(), despeculateCountZeros(), detectPopcountIdiom(), detectShiftUntilLessThanIdiom(), detectShiftUntilZeroIdiom(), DoInitialMatch(), dominatesAllUsesOf(), dropRedundantMaskingOfLeftShiftInput(), emitGlobalConstantArray(), emitGlobalConstantStruct(), emitGlobalConstantVector(), llvm::Evaluator::EvaluateFunction(), evaluateICmpRelation(), llvm::VPPredInstPHIRecipe::execute(), expandAbs(), expandAnyIntrinsic(), expandClampIntrinsic(), llvm::expandDivision(), llvm::expandDivisionUpTo32Bits(), llvm::expandDivisionUpTo64Bits(), expandExpIntrinsic(), expandFPToI(), expandIntegerDot(), expandIToFP(), expandLengthIntrinsic(), expandLerpIntrinsic(), expandLogIntrinsic(), expandNormalizeIntrinsic(), expandPowIntrinsic(), llvm::expandRemainder(), llvm::expandRemainderUpTo32Bits(), llvm::expandRemainderUpTo64Bits(), ExtendUsesToFormExtLoad(), extractConstantBits(), llvm::AArch64TargetLowering::fallBackToDAGISel(), llvm::RISCVTargetLowering::fallBackToDAGISel(), findBuildAggregate_rec(), findDemandedEltsBySingleUser(), findFinalIVValue(), findGlobalCtors(), findInitTrampoline(), findInitTrampolineFromAlloca(), llvm::findScalarElement(), findSelectThroughCast(), FindSingleUseMultiplyFactors(), FindUsedValues(), findUsedValues(), llvm::InstCombinerImpl::foldBinopWithPhiOperands(), foldBitCastBitwiseLogic(), foldBitCastSelect(), foldCastShuffle(), llvm::InstCombinerImpl::foldCmpLoadFromIndexedGlobal(), foldConstantInsEltIntoShuffle(), foldFCmpFSubIntoFCmp(), llvm::InstCombinerImpl::foldFCmpIntToFPConst(), foldFCmpReciprocalAndZero(), foldFCmpToFPClassTest(), foldFPtoI(), llvm::InstCombinerImpl::foldGEPICmp(), llvm::InstCombinerImpl::foldICmpAndShift(), llvm::InstCombinerImpl::foldICmpBinOp(), llvm::InstCombinerImpl::foldICmpBinOpEqualityWithConstant(), llvm::InstCombinerImpl::foldICmpDivConstant(), llvm::InstCombinerImpl::foldICmpInstWithConstantNotInt(), llvm::InstCombinerImpl::foldICmpShlConstant(), llvm::InstCombinerImpl::foldICmpShrConstant(), llvm::InstCombinerImpl::foldICmpSRemConstant(), llvm::InstCombinerImpl::foldICmpSubConstant(), llvm::InstCombinerImpl::foldICmpTruncConstant(), llvm::InstCombinerImpl::foldICmpUDivConstant(), llvm::InstCombinerImpl::foldICmpUsingBoolRange(), llvm::InstCombinerImpl::foldICmpWithCastOp(), llvm::InstCombinerImpl::foldICmpWithTrunc(), llvm::InstCombinerImpl::foldICmpWithZextOrSext(), foldIdentityExtractShuffle(), foldIdentityPaddedShuffles(), foldInsEltIntoIdentityShuffle(), foldInsEltIntoSplat(), foldInsSequenceIntoSplat(), foldIsPowerOf2(), foldIsPowerOf2OrZero(), llvm::InstCombinerImpl::foldItoFPtoI(), foldLogicCastConstant(), foldMulShl1(), llvm::InstCombinerImpl::foldPHIArgBinOpIntoPHI(), llvm::InstCombinerImpl::foldPHIArgGEPIntoPHI(), llvm::InstCombinerImpl::foldPHIArgLoadIntoPHI(), llvm::InstCombinerImpl::foldPHIArgOpIntoPHI(), foldSelectBinOpIdentity(), foldSelectICmpAndBinOp(), foldSelectICmpLshrAshr(), llvm::InstCombinerImpl::foldSelectOpOp(), llvm::InstCombinerImpl::foldSelectShuffle(), foldSelectShuffleOfSelectShuffle(), foldSelectShuffleWith1Binop(), llvm::InstCombinerImpl::FoldShiftByConstant(), foldShiftedShift(), foldShiftIntoShiftInAnotherHandOfAndInICmp(), foldShuffleOfUnaryOps(), foldShuffleWithInsert(), foldSignedTruncationCheck(), foldTruncInsEltPair(), foldTruncShuffle(), llvm::InstCombinerImpl::foldUsingDistributiveLaws(), llvm::InstCombinerImpl::foldVectorBinop(), foldVecTruncToExtElt(), llvm::InstCombinerImpl::freezeOtherUses(), llvm::InsertValueInst::getAggregateOperand(), llvm::GlobalAlias::getAliaseeObject(), getAlternateBinop(), llvm::CallBase::getArgOperand(), llvm::AllocaInst::getArraySize(), llvm::Loop::LoopBounds::getBounds(), getBranchCondString(), llvm::Loop::LoopBounds::getCanonicalPredicate(), getCastsForInductionPHI(), llvm::AtomicCmpXchgInst::getCompareOperand(), llvm::ExecutionEngine::getConstantValue(), llvm::MemoryUseOrDef::getDefiningAccess(), getExactSDiv(), getExtractedDemandedElts(), getExtractIndex(), getGEPInductionOperand(), llvm::CallBrInst::getIndirectDestLabel(), llvm::Loop::getInductionVariable(), llvm::InsertValueInst::getInsertedValueOperand(), getInvertibleOperands(), llvm::SCEVExpander::getIVIncOperand(), getLoopPhiForCounter(), llvm::SystemZTTIImpl::getMemoryOpCost(), llvm::AtomicCmpXchgInst::getNewValOperand(), llvm::Value::getPointerOffsetFrom(), llvm::LoadInst::getPointerOperand(), llvm::StoreInst::getPointerOperand(), llvm::AtomicCmpXchgInst::getPointerOperand(), llvm::GetElementPtrInst::getPointerOperand(), llvm::PtrToIntInst::getPointerOperand(), llvm::AddrSpaceCastInst::getPointerOperand(), llvm::GEPOperator::getPointerOperand(), getRecurrenceVar(), llvm::LoopVectorizationCostModel::getReductionPatternCost(), llvm::objcarc::getreturnRVOperand(), getSalvageOpsForBinOp(), getSalvageOpsForIcmpOp(), llvm::NoAliasScopeDeclInst::getScopeList(), getShuffleDemandedElts(), llvm::Constant::getSplatValue(), llvm::ConstantVector::getSplatValue(), llvm::CastInst::getSrcTy(), llvm::GlobalStatus::getStoredOnceValue(), llvm::ScalarEvolution::getStrengthenedNoWrapFlagsFromBinOp(), llvm::BasicBlock::getTerminatingMustTailCall(), llvm::SITargetLowering::getTgtMemIntrinsic(), llvm::slpvectorizer::BoUpSLP::getTreeCost(), llvm::CanonicalLoopInfo::getTripCount(), llvm::StoreInst::getValueOperand(), llvm::ConstantExpr::getWithOperands(), handleBrSelExpect(), handleIndirectSymViaGOTPCRel(), handlePhiDef(), llvm::GetElementPtrInst::hasAllConstantIndices(), llvm::RISCVDAGToDAGISel::hasAllNBitUsers(), llvm::GetElementPtrInst::hasAllZeroIndices(), hoistInsEltConst(), hoistMulAddAssociation(), inlineRetainOrClaimRVCalls(), instCombineSVEDup(), isAllocSiteRemovable(), llvm::GCNTTIImpl::isAlwaysUniform(), llvm::AllocaInst::isArrayAllocation(), isCmpSameOrSwapped(), isEqualImpl(), isExtractBitsCandidateUse(), llvm::SystemZTTIImpl::isFoldableLoad(), llvm::InductionDescriptor::isFPInductionPHI(), isGOTEquivalentCandidate(), isHighCostExpansion(), isI128MovedToParts(), isI32Insn(), llvm::CastInst::isIntegerCast(), llvm::ShuffleVectorInst::isInterleave(), isLoopExitTestBasedOn(), llvm::AArch64TargetLowering::isMaskAndCmp0FoldingBeneficial(), llvm::ARMTargetLowering::isMaskAndCmp0FoldingBeneficial(), llvm::RISCVTargetLowering::isMaskAndCmp0FoldingBeneficial(), llvm::SystemZTargetLowering::isMaskAndCmp0FoldingBeneficial(), isModifyingBinopOfNonZero(), llvm::CastInst::isNoopCast(), isNoopPtrIntCastPair(), isPowerOfTwoRecurrence(), llvm::AArch64TargetLowering::isProfitableToHoist(), llvm::PPCTargetLowering::isProfitableToHoist(), isRepeatedByteSequence(), isReturnNonNull(), llvm::isSafeToSpeculativelyExecuteWithOpcode(), llvm::Instruction::isSameOperationAs(), isShuffleEquivalentToSelect(), isShuffleExtractingFromLHS(), isSSATMinMaxPattern(), lookThroughCast(), llvm::FastISel::lowerCallTo(), llvm::RISCVTargetLowering::lowerDeinterleaveIntrinsicToLoad(), llvm::AArch64TargetLowering::lowerInterleavedStore(), llvm::ARMTargetLowering::lowerInterleavedStore(), llvm::RISCVTargetLowering::lowerInterleavedStore(), llvm::IntrinsicLowering::LowerIntrinsicCall(), LowerNegateToMultiply(), lowerShufflePairAsUNPCKAndPermute(), llvm::matchDecomposedSelectPattern(), llvm::InstModificationIRStrategy::mutate(), narrowInsElt(), narrowVectorSelect(), llvm::orc::CtorDtorIterator::operator*(), llvm::FastISel::optimizeCmpPredicate(), OptimizeExtractBits(), optimizeIntegerToVectorInsertions(), OptimizeNoopCopyExpression(), parseGlobalCtors(), llvm::LoopStructure::parseLoopStructure(), llvm::PPCTargetLowering::PerformDAGCombine(), PerformMVEVLDCombine(), performNEONPostLDSTCombine(), performPostLD1Combine(), llvm::BasicTTIImplBase< T >::preferToKeepConstantsAttached(), llvm::AsmPrinter::preprocessXXStructorList(), processAnd(), processAShr(), llvm::JumpThreadingPass::processBranchOnXOR(), processSDiv(), processSRem(), processUGT_ADDCST_ADD(), llvm::InstCombinerImpl::pushFreezeToPreventPoisonFromPropagating(), reassociateFCmps(), llvm::refineInstruction(), removeGlobalCtors(), removeMarkerCall(), replaceConditionalBranchesOnConstant(), replaceExtractElements(), llvm::replaceSignedInst(), replaceUsesOfWith(), llvm::VPValue::replaceUsesWithIf(), reuseTableCompare(), rewriteSingleStoreAlloca(), runImpl(), llvm::ExecutionEngine::runStaticConstructorsDestructors(), scalarize(), llvm::FastISel::selectExtractValue(), setLimitsForBinOp(), ShouldBreakUpSubtract(), llvm::ARMTargetLowering::shouldExpandAtomicCmpXchgInIR(), shouldExpandCmpArithRMWInIR(), llvm::AArch64TargetLowering::shouldSinkOperands(), llvm::ARMTargetLowering::shouldSinkOperands(), shrinkInsertElt(), shrinkSplatShuffle(), simplifyAndOfICmpsWithAdd(), simplifyAndOrOfICmpsWithConstants(), simplifyAssocCastAssoc(), simplifyAssociativeBinOp(), llvm::InstCombinerImpl::SimplifyAssociativeOrCommutative(), llvm::InstCombinerImpl::simplifyBinOpSplats(), llvm::InstCombinerImpl::SimplifyDemandedVectorElts(), simplifyICmpInst(), simplifyICmpWithBinOp(), simplifyOrOfICmpsWithAdd(), llvm::JumpThreadingPass::simplifyPartiallyRedundantLoad(), llvm::InstCombinerImpl::simplifyRangeCheck(), simplifyRelativeLoad(), llvm::InstCombinerImpl::simplifyShrShlDemandedBits(), sinkAndCmp0Expression(), sinkLastInstruction(), sinkMinMaxInBB(), SinkShiftAndTruncate(), llvm::InstCombinerImpl::SliceUpIllegalIntegerPHI(), llvm::Constant::toConstantRange(), translateExtract(), tryCombineMULLWithUZP1(), tryGetSecondaryReductionRoot(), tryToFoldExtOfLoad(), TryToShrinkGlobalToBoolean(), llvm::JumpThreadingPass::tryToUnfoldSelect(), tryUnmergingGEPsAcrossIndirectBr(), upgradeARMIntrinsicCall(), upgradeX86BinaryIntrinsics(), upgradeX86ConcatShift(), upgradeX86IntrinsicCall(), upgradeX86Rotate(), llvm::slpvectorizer::BoUpSLP::vectorizeTree(), vectorPseudoHasAllNBitUsers(), llvm::InstCombinerImpl::visitAnd(), llvm::InstCombinerImpl::visitBitCast(), llvm::InstCombinerImpl::visitExtractElementInst(), llvm::InstCombinerImpl::visitFCmpInst(), llvm::InstCombinerImpl::visitFPExt(), llvm::InstCombinerImpl::visitFPTrunc(), VisitGlobalVariableForEmission(), llvm::InstCombinerImpl::visitIntToPtr(), visitIVCast(), llvm::InstCombinerImpl::visitLandingPadInst(), llvm::InstCombinerImpl::visitMul(), llvm::InstCombinerImpl::visitPHINode(), llvm::InstCombinerImpl::visitSExt(), llvm::InstCombinerImpl::visitShl(), llvm::InstCombinerImpl::visitShuffleVectorInst(), llvm::InstCombinerImpl::visitSIToFP(), llvm::InstCombinerImpl::visitTrunc(), llvm::InstCombinerImpl::visitUIToFP(), and llvm::InstCombinerImpl::visitZExt().
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Definition at line 165 of file User.h.
References getOperandList().
Definition at line 162 of file User.h.
References llvm::Value::HasHungOffUses.
Referenced by llvm::LandingPadInst::addClause(), llvm::IndirectBrInst::addDestination(), llvm::CatchSwitchInst::addHandler(), getOperand(), getOperandList(), getOperandUse(), growHungoffUses(), op_begin(), op_end(), llvm::SwitchInst::removeCase(), llvm::IndirectBrInst::removeDestination(), setOperand(), and User().
Definition at line 186 of file User.h.
References assert(), getOperandList(), and llvm::Value::NumUserOperands.
Definition at line 182 of file User.h.
References assert(), getOperandList(), and llvm::Value::NumUserOperands.
Referenced by canSinkInstructions(), despeculateCountZeros(), llvm::SITargetLowering::emitExpandAtomicRMW(), formLCSSAForInstructionsImpl(), llvm::CallBase::getArgOperandUse(), llvm::AbstractCallSite::getCalleeUseForCallback(), llvm::CallBrInst::getIndirectDestLabelUse(), hoistMulAddAssociation(), processAnd(), processAShr(), processBinOp(), processCmpIntrinsic(), processMinMaxIntrinsic(), processSExt(), processSIToFP(), replaceOperandIfSame(), llvm::AArch64TargetLowering::shouldSinkOperands(), llvm::ARMTargetLowering::shouldSinkOperands(), sinkLastInstruction(), and willNotOverflow().
Grow the number of hung off uses.
Note that allocHungoffUses should be called if there are no uses.
Definition at line 67 of file User.cpp.
References allocHungoffUses(), assert(), getNumOperands(), getOperandList(), llvm::Value::HasHungOffUses, and llvm::Use::zap().
bool llvm::User::isDroppable | ( | ) | const |
A droppable user is a user for which uses can be dropped without affecting correctness and should be dropped rather than preventing a transformation from happening.
Definition at line 115 of file User.cpp.
Referenced by llvm::Value::dropDroppableUsesIn(), removeIntrinsicUsers(), and llvm::InstCombinerImpl::run().
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Definition at line 234 of file User.h.
References getOperandList().
Referenced by llvm::CallBase::arg_begin(), llvm::ConstantAggregate::ConstantAggregate(), llvm::CallBase::data_operands_begin(), llvm::InstCombinerImpl::foldPHIArgGEPIntoPHI(), llvm::Use::getOperandNo(), getSameOpcode(), getValueFromBundleOpInfo(), llvm::ConstantExpr::getWithOperands(), llvm::GetElementPtrInst::idx_begin(), llvm::GEPOperator::idx_begin(), llvm::CallBase::isBundleOperand(), llvm::Instruction::isIdenticalToWhenDefined(), llvm::CallBase::operandBundleFromBundleOpInfo(), operands(), llvm::CallBase::populateBundleOperandInfos(), llvm::PHINode::removeIncomingValue(), llvm::InnerLoopVectorizer::sinkScalarOperands(), and value_op_begin().
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Definition at line 235 of file User.h.
References getOperandList().
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Definition at line 236 of file User.h.
References getOperandList(), and llvm::Value::NumUserOperands.
Referenced by llvm::CallBase::data_operands_end(), llvm::InstCombinerImpl::foldPHIArgGEPIntoPHI(), llvm::GetElementPtrInst::idx_end(), llvm::GEPOperator::idx_end(), llvm::Instruction::isIdenticalToWhenDefined(), operands(), llvm::CatchSwitchInst::removeHandler(), llvm::PHINode::removeIncomingValue(), llvm::PHINode::removeIncomingValueIf(), llvm::InnerLoopVectorizer::sinkScalarOperands(), and value_op_end().
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Definition at line 239 of file User.h.
References getOperandList(), and llvm::Value::NumUserOperands.
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Definition at line 266 of file User.h.
References llvm::make_range(), value_op_begin(), and value_op_end().
Referenced by llvm::GEPOperator::accumulateConstantOffset(), llvm::Constant::isManifestConstant(), llvm::SCEVExpander::isSafeToExpandAt(), operandReferences(), and rematerializeChain().
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Definition at line 287 of file User.h.
References llvm::make_range(), value_op_begin(), and value_op_end().
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Definition at line 242 of file User.h.
References op_begin(), and op_end().
Referenced by areIdenticalUpToCommutativity(), callHasFloatingPointArgument(), callHasFP128Argument(), llvm::objcarc::CanUse(), contains(), createRelLookupTable(), DoInitialMatch(), dropAllReferences(), llvm::Value::dropDroppableUsesIn(), llvm::WebAssemblyAsmPrinter::EmitFunctionAttributes(), findGlobalCtors(), llvm::InstCombinerImpl::foldOpIntoPhi(), llvm::FoldReturnIntoUncondBranch(), getAnyNonZeroConstInt(), llvm::ConstantExpr::getAsInstruction(), getConstantEvolvingPHIOperands(), getExactSDiv(), llvm::SCEVExpander::getIVIncOperand(), llvm::slpvectorizer::BoUpSLP::getSpillCost(), llvm::IRSimilarity::IRInstructionData::initializeInstruction(), isBlockValidForExtraction(), llvm::Instruction::isOnlyUserOfAnyOperand(), isPowerOfTwoRecurrence(), llvm::LoopInfo::movementPreservesLCSSAForm(), onlySingleValue(), parseGlobalCtors(), performBlockTailMerging(), llvm::PHINode::removeIncomingValueIf(), runImpl(), simplifyUsingControlFlow(), updateSuccessor(), usesOperand(), and llvm::VPlanTransforms::VPInstructionsToVPRecipes().
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Definition at line 245 of file User.h.
References op_begin(), and op_end().
LLVM_NO_SANITIZE_MEMORY_ATTRIBUTE void llvm::User::operator delete | ( | void * | Usr | ) |
Free memory allocated for User and Use objects.
Definition at line 179 of file User.cpp.
References assert(), llvm::Value::HasDescriptor, llvm::Value::HasHungOffUses, llvm::Value::NumUserOperands, llvm::DescriptorInfo::SizeInBytes, and llvm::Use::zap().
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Placement delete - required by std, called if the ctor throws.
Definition at line 102 of file User.h.
References llvm_unreachable.
Placement delete - required by std, called if the ctor throws.
Definition at line 114 of file User.h.
References llvm_unreachable.
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Allocate a User with an operand pointer co-allocated.
This is used for subclasses which need to allocate a variable number of operands, ie, 'hung off uses'.
Definition at line 161 of file User.cpp.
References llvm::Value::HasDescriptor, llvm::Value::HasHungOffUses, llvm::Value::NumUserOperands, and Size.
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Allocate a User with the operands co-allocated.
If DescBytes is non-zero then allocate an additional DescBytes bytes before the operands. These bytes can be accessed by calling getDescriptor.
DescBytes needs to be divisible by sizeof(void *). The allocated descriptor, if any, is aligned to sizeof(void *) bytes.
This is used for subclasses which have a fixed number of operands.
Definition at line 157 of file User.cpp.
References Size.
Replace uses of one Value with another.
Replaces all references to the "From" definition with references to the "To" definition. Returns whether any uses were replaced.
Definition at line 21 of file User.cpp.
References assert(), E, From, getNumOperands(), getOperand(), llvm::is_contained(), and setOperand().
Referenced by llvm::EpilogueVectorizerEpilogueLoop::createEpilogueVectorizedLoopSkeleton(), llvm::DemotePHIToStack(), llvm::CodeExtractor::findOrCreateBlockForHoisting(), foldOperationIntoSelectOperand(), INITIALIZE_PASS(), llvm::lowerGlobalIFuncUsersAsGlobalCtor(), rematerializeChain(), rematerializeLiveValuesAtUses(), removeEmptyCleanup(), replaceWithTileLoad(), llvm::LoopConstrainer::run(), and llvm::slpvectorizer::BoUpSLP::vectorizeTree().
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Set the number of operands on a GlobalVariable.
GlobalVariable always allocates space for a single operands, but doesn't always use it.
FIXME: As that the number of operands is used to find the start of the allocated memory in operator delete, we need to always think we have 1 operand before delete.
Definition at line 207 of file User.h.
References assert(), and llvm::Value::NumUserOperands.
Referenced by llvm::GlobalVariable::operator delete(), and llvm::GlobalVariable::setInitializer().
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Subclasses with hung off uses need to manage the operand count themselves.
In these instances, the operand count isn't used to find the OperandList, so there's no issue in having the operand count change.
Definition at line 215 of file User.h.
References assert(), llvm::Value::HasHungOffUses, llvm::Value::NumUserOperands, and llvm::Value::NumUserOperandsBits.
Referenced by llvm::SwitchInst::addCase(), llvm::LandingPadInst::addClause(), llvm::IndirectBrInst::addDestination(), llvm::CatchSwitchInst::addHandler(), llvm::SwitchInst::removeCase(), llvm::IndirectBrInst::removeDestination(), llvm::CatchSwitchInst::removeHandler(), llvm::PHINode::removeIncomingValue(), and llvm::PHINode::removeIncomingValueIf().
Definition at line 174 of file User.h.
References assert(), getOperandList(), and llvm::Value::NumUserOperands.
Referenced by BreakUpSubtract(), checkOrAndOpImpliedByOther(), ConvertShiftToMul(), llvm::VPIRBasicBlock::execute(), llvm::InstCombinerImpl::foldPHIArgLoadIntoPHI(), llvm::FoldReturnIntoUncondBranch(), foldShiftedShift(), handleBrSelExpect(), hoistAdd(), hoistSub(), llvm::InlineFunction(), LowerNegateToMultiply(), llvm::InstModificationIRStrategy::mutate(), optimizeDivRem(), llvm::JumpThreadingPass::processBranchOnXOR(), processUMulZExtIdiom(), replaceArgumentUses(), replaceAsyncResumeFunction(), replaceGEPIdxWithZero(), replaceUsesOfWith(), llvm::VPValue::replaceUsesWithIf(), llvm::InnerLoopVectorizer::scalarizeInstruction(), llvm::CallBase::setArgOperand(), llvm::MemoryUseOrDef::setDefiningAccess(), llvm::DbgVariableIntrinsic::setOperand(), llvm::MemoryUse::setOptimized(), llvm::NoAliasScopeDeclInst::setScopeList(), and updateOperand().
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Definition at line 260 of file User.h.
References op_begin().
Referenced by llvm::VPWidenRecipe::computeCost(), EliminateDuplicatePHINodesSetBasedImpl(), getHashValueImpl(), hashCallInst(), markAliveBlocks(), and operand_values().
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Definition at line 281 of file User.h.
References op_begin().
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Definition at line 263 of file User.h.
References op_end().
Referenced by llvm::VPWidenRecipe::computeCost(), EliminateDuplicatePHINodesSetBasedImpl(), getHashValueImpl(), hashCallInst(), markAliveBlocks(), and operand_values().
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