A signed pointer, in the ptrauth sense. More...
#include "llvm/IR/Constants.h"
Inheritance diagram for llvm::ConstantPtrAuth:
Public Types | |
| enum | { AddrDiscriminator_CtorsDtors = 1 } |
| A constant value for the address discriminator which has special significance to ctors/dtors lowering. More... | |
 Public Types inherited from llvm::User | |
| 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 | |
| ConstantPtrAuth * | getWithSameSchema (Constant *Pointer) const |
| Produce a new ptrauth expression signing the given value using the same schema as is stored in one. | |
| DECLARE_TRANSPARENT_OPERAND_ACCESSORS (Constant) | |
| Transparently provide more efficient getOperand methods. | |
| Constant * | getPointer () const |
| The pointer that is signed in this ptrauth signed pointer. | |
| ConstantInt * | getKey () const |
| The Key ID, an i32 constant. | |
| ConstantInt * | getDiscriminator () const |
| The integer discriminator, an i64 constant, or 0. | |
| Constant * | getAddrDiscriminator () const |
| The address discriminator if any, or the null constant. | |
| bool | hasAddressDiscriminator () const |
| Whether there is any non-null address discriminator. | |
| bool | hasSpecialAddressDiscriminator (uint64_t Value) const |
| Whether the address uses a special address discriminator. | |
| bool | isKnownCompatibleWith (const Value *Key, const Value *Discriminator, const DataLayout &DL) const |
Check whether an authentication operation with key Key and (possibly blended) discriminator Discriminator is known to be compatible with this ptrauth signed pointer. | |
| Public Member Functions inherited from llvm::Constant | |
| void | operator= (const Constant &)=delete |
| Constant (const Constant &)=delete | |
| bool | isNullValue () const |
| Return true if this is the value that would be returned by getNullValue. | |
| bool | isOneValue () const |
| Returns true if the value is one. | |
| bool | isNotOneValue () const |
| Return true if the value is not the one value, or, for vectors, does not contain one value elements. | |
| bool | isAllOnesValue () const |
| Return true if this is the value that would be returned by getAllOnesValue. | |
| bool | isNegativeZeroValue () const |
| Return true if the value is what would be returned by getZeroValueForNegation. | |
| bool | isZeroValue () const |
| Return true if the value is negative zero or null value. | |
| bool | isNotMinSignedValue () const |
| Return true if the value is not the smallest signed value, or, for vectors, does not contain smallest signed value elements. | |
| bool | isMinSignedValue () const |
| Return true if the value is the smallest signed value. | |
| bool | isFiniteNonZeroFP () const |
| Return true if this is a finite and non-zero floating-point scalar constant or a fixed width vector constant with all finite and non-zero elements. | |
| bool | isNormalFP () const |
| Return true if this is a normal (as opposed to denormal, infinity, nan, or zero) floating-point scalar constant or a vector constant with all normal elements. | |
| bool | hasExactInverseFP () const |
| Return true if this scalar has an exact multiplicative inverse or this vector has an exact multiplicative inverse for each element in the vector. | |
| bool | isNaN () const |
| Return true if this is a floating-point NaN constant or a vector floating-point constant with all NaN elements. | |
| bool | isElementWiseEqual (Value *Y) const |
| Return true if this constant and a constant 'Y' are element-wise equal. | |
| bool | containsUndefOrPoisonElement () const |
| Return true if this is a vector constant that includes any undef or poison elements. | |
| bool | containsPoisonElement () const |
| Return true if this is a vector constant that includes any poison elements. | |
| bool | containsUndefElement () const |
| Return true if this is a vector constant that includes any strictly undef (not poison) elements. | |
| bool | containsConstantExpression () const |
| Return true if this is a fixed width vector constant that includes any constant expressions. | |
| bool | isThreadDependent () const |
| Return true if the value can vary between threads. | |
| bool | isDLLImportDependent () const |
| Return true if the value is dependent on a dllimport variable. | |
| bool | isConstantUsed () const |
| Return true if the constant has users other than constant expressions and other dangling things. | |
| bool | needsRelocation () const |
| This method classifies the entry according to whether or not it may generate a relocation entry (either static or dynamic). | |
| bool | needsDynamicRelocation () const |
| Constant * | getAggregateElement (unsigned Elt) const |
| For aggregates (struct/array/vector) return the constant that corresponds to the specified element if possible, or null if not. | |
| Constant * | getAggregateElement (Constant *Elt) const |
| Constant * | getSplatValue (bool AllowPoison=false) const |
| If all elements of the vector constant have the same value, return that value. | |
| const APInt & | getUniqueInteger () const |
| If C is a constant integer then return its value, otherwise C must be a vector of constant integers, all equal, and the common value is returned. | |
| ConstantRange | toConstantRange () const |
| Convert constant to an approximate constant range. | |
| void | destroyConstant () |
| Called if some element of this constant is no longer valid. | |
| void | handleOperandChange (Value *, Value *) |
| This method is a special form of User::replaceUsesOfWith (which does not work on constants) that does work on constants. | |
| void | removeDeadConstantUsers () const |
| If there are any dead constant users dangling off of this constant, remove them. | |
| bool | hasOneLiveUse () const |
| Return true if the constant has exactly one live use. | |
| bool | hasZeroLiveUses () const |
| Return true if the constant has no live uses. | |
| const Constant * | stripPointerCasts () const |
| Constant * | stripPointerCasts () |
| bool | isManifestConstant () const |
| Return true if a constant is ConstantData or a ConstantAggregate or ConstantExpr that contain only ConstantData. | |
| Public Member Functions inherited from llvm::User | |
| User (const User &)=delete | |
| void | operator delete (void *Usr) |
| Free memory allocated for User and Use objects. | |
| void | operator delete (void *Usr, HungOffOperandsAllocMarker) |
| Placement delete - required by std, called if the ctor throws. | |
| void | operator delete (void *Usr, IntrusiveOperandsAllocMarker) |
| Placement delete - required by std, called if the ctor throws. | |
| void | operator delete (void *Usr, IntrusiveOperandsAndDescriptorAllocMarker) |
| 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 | 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, function_ref< bool(Value &Value, APInt &Offset)> ExternalAnalysis=nullptr) |
| 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 ConstantPtrAuth * | get (Constant *Ptr, ConstantInt *Key, ConstantInt *Disc, Constant *AddrDisc) |
| Return a pointer signed with the specified parameters. | |
| static bool | classof (const Value *V) |
| Methods for support type inquiry through isa, cast, and dyn_cast: | |
| Static Public Member Functions inherited from llvm::Constant | |
| static bool | classof (const Value *V) |
| static Constant * | getNullValue (Type *Ty) |
| Constructor to create a '0' constant of arbitrary type. | |
| static Constant * | getAllOnesValue (Type *Ty) |
| static Constant * | getIntegerValue (Type *Ty, const APInt &V) |
| Return the value for an integer or pointer constant, or a vector thereof, with the given scalar value. | |
| static Constant * | replaceUndefsWith (Constant *C, Constant *Replacement) |
| Try to replace undefined constant C or undefined elements in C with Replacement. | |
| static Constant * | mergeUndefsWith (Constant *C, Constant *Other) |
| Merges undefs of a Constant with another Constant, along with the undefs already present. | |
| Static Public Member Functions inherited from llvm::User | |
| static bool | classof (const Value *V) |
| Static Public Member Functions inherited from llvm::Value | |
| static void | dropDroppableUse (Use &U) |
Remove the droppable use U. | |
Friends | |
| struct | ConstantPtrAuthKeyType |
| class | Constant |
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 Member Functions inherited from llvm::Constant | |
| Constant (Type *ty, ValueTy vty, AllocInfo AllocInfo) | |
| ~Constant ()=default | |
| Protected Member Functions inherited from llvm::User | |
| void * | operator new (size_t Size)=delete |
| void * | operator new (size_t Size, HungOffOperandsAllocMarker) |
| Allocate a User with an operand pointer co-allocated. | |
| void * | operator new (size_t Size, IntrusiveOperandsAllocMarker allocTrait) |
| Allocate a User with the operands co-allocated. | |
| void * | operator new (size_t Size, IntrusiveOperandsAndDescriptorAllocMarker allocTrait) |
| Allocate a User with the operands co-allocated. | |
| User (Type *ty, unsigned vty, AllocInfo AllocInfo) | |
| 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 inherited from llvm::User | |
| template<int Idx, typename U > | |
| static Use & | OpFrom (const U *that) |
| 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 |
Detailed Description
A signed pointer, in the ptrauth sense.
Definition at line 1021 of file Constants.h.
Member Enumeration Documentation
◆ anonymous enum
| anonymous enum |
A constant value for the address discriminator which has special significance to ctors/dtors lowering.
Regular address discrimination can't be applied for them since uses of llvm.global_{c|d}tors are disallowed (see Verifier::visitGlobalVariable) and we can't emit getelementptr expressions referencing these special arrays.
| Enumerator | |
|---|---|
| AddrDiscriminator_CtorsDtors | |
Definition at line 1075 of file Constants.h.
Member Function Documentation
◆ classof()
Methods for support type inquiry through isa, cast, and dyn_cast:
Definition at line 1090 of file Constants.h.
◆ DECLARE_TRANSPARENT_OPERAND_ACCESSORS()
| llvm::ConstantPtrAuth::DECLARE_TRANSPARENT_OPERAND_ACCESSORS | ( | Constant | ) |
Transparently provide more efficient getOperand methods.
◆ get()
|
static |
Return a pointer signed with the specified parameters.
Definition at line 2072 of file Constants.cpp.
References llvm::LLVMContextImpl::ConstantPtrAuths, and Ptr.
Referenced by llvm::sandboxir::ConstantPtrAuth::get(), getWithSameSchema(), LLVMConstantPtrAuth(), and llvm::InstCombinerImpl::visitCallInst().
◆ getAddrDiscriminator()
|
inline |
The address discriminator if any, or the null constant.
If present, this must be a value equivalent to the storage location of the only global-initializer user of the ptrauth signed pointer.
Definition at line 1061 of file Constants.h.
References llvm::get().
Referenced by getWithSameSchema(), hasSpecialAddressDiscriminator(), and isKnownCompatibleWith().
◆ getDiscriminator()
|
inline |
The integer discriminator, an i64 constant, or 0.
Definition at line 1054 of file Constants.h.
References llvm::get().
Referenced by llvm::MachineIRBuilder::buildConstantPtrAuth(), getWithSameSchema(), and isKnownCompatibleWith().
◆ getKey()
|
inline |
The Key ID, an i32 constant.
Definition at line 1051 of file Constants.h.
References llvm::get().
Referenced by llvm::MachineIRBuilder::buildConstantPtrAuth(), getWithSameSchema(), and isKnownCompatibleWith().
◆ getPointer()
|
inline |
The pointer that is signed in this ptrauth signed pointer.
Definition at line 1048 of file Constants.h.
References llvm::get().
◆ getWithSameSchema()
| ConstantPtrAuth * ConstantPtrAuth::getWithSameSchema | ( | Constant * | Pointer | ) | const |
Produce a new ptrauth expression signing the given value using the same schema as is stored in one.
Definition at line 2080 of file Constants.cpp.
References get(), getAddrDiscriminator(), getDiscriminator(), and getKey().
◆ hasAddressDiscriminator()
|
inline |
Whether there is any non-null address discriminator.
Definition at line 1066 of file Constants.h.
Referenced by isKnownCompatibleWith().
◆ hasSpecialAddressDiscriminator()
Whether the address uses a special address discriminator.
These discriminators can't be used in real pointer-auth values; they can only be used in "prototype" values that indicate how some real schema is supposed to be produced.
Definition at line 2127 of file Constants.cpp.
References getAddrDiscriminator().
◆ isKnownCompatibleWith()
| bool ConstantPtrAuth::isKnownCompatibleWith | ( | const Value * | Key, |
| const Value * | Discriminator, | ||
| const DataLayout & | DL | ||
| ) | const |
Check whether an authentication operation with key Key and (possibly blended) discriminator Discriminator is known to be compatible with this ptrauth signed pointer.
Definition at line 2139 of file Constants.cpp.
References DL, getAddrDiscriminator(), getDiscriminator(), getKey(), llvm::Value::getType(), hasAddressDiscriminator(), llvm::Constant::isNullValue(), llvm::PatternMatch::m_Specific(), llvm::PatternMatch::m_Value(), llvm::PatternMatch::match(), and llvm::Value::stripAndAccumulateConstantOffsets().
Friends And Related Function Documentation
◆ Constant
|
friend |
Definition at line 1023 of file Constants.h.
◆ ConstantPtrAuthKeyType
|
friend |
Definition at line 1022 of file Constants.h.
The documentation for this class was generated from the following files:
- include/llvm/IR/Constants.h
- lib/IR/Constants.cpp
