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LLVM
4.0.0
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ConstantDataSequential - A vector or array constant whose element type is a simple 1/2/4/8-byte integer or float/double, and whose elements are just simple data values (i.e. More...
#include <Constants.h>
Public Member Functions | |
| ConstantDataSequential (const ConstantDataSequential &)=delete | |
| uint64_t | getElementAsInteger (unsigned i) const |
| If this is a sequential container of integers (of any size), return the specified element in the low bits of a uint64_t. More... | |
| APFloat | getElementAsAPFloat (unsigned i) const |
| If this is a sequential container of floating point type, return the specified element as an APFloat. More... | |
| float | getElementAsFloat (unsigned i) const |
| If this is an sequential container of floats, return the specified element as a float. More... | |
| double | getElementAsDouble (unsigned i) const |
| If this is an sequential container of doubles, return the specified element as a double. More... | |
| Constant * | getElementAsConstant (unsigned i) const |
| Return a Constant for a specified index's element. More... | |
| SequentialType * | getType () const |
| Specialize the getType() method to always return a SequentialType, which reduces the amount of casting needed in parts of the compiler. More... | |
| Type * | getElementType () const |
| Return the element type of the array/vector. More... | |
| unsigned | getNumElements () const |
| Return the number of elements in the array or vector. More... | |
| uint64_t | getElementByteSize () const |
| Return the size (in bytes) of each element in the array/vector. More... | |
| bool | isString () const |
| This method returns true if this is an array of i8. More... | |
| bool | isCString () const |
| This method returns true if the array "isString", ends with a null byte, and does not contains any other null bytes. More... | |
| StringRef | getAsString () const |
| If this array is isString(), then this method returns the array as a StringRef. More... | |
| StringRef | getAsCString () const |
| If this array is isCString(), then this method returns the array (without the trailing null byte) as a StringRef. More... | |
| StringRef | getRawDataValues () const |
| Return the raw, underlying, bytes of this data. More... | |
Public Member Functions inherited from llvm::ConstantData | |
| ConstantData ()=delete | |
| ConstantData (const ConstantData &)=delete | |
| void * | operator new (size_t, unsigned)=delete |
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. More... | |
| bool | isOneValue () const |
| Returns true if the value is one. More... | |
| bool | isAllOnesValue () const |
| Return true if this is the value that would be returned by getAllOnesValue. More... | |
| bool | isNegativeZeroValue () const |
| Return true if the value is what would be returned by getZeroValueForNegation. More... | |
| bool | isZeroValue () const |
| Return true if the value is negative zero or null value. More... | |
| bool | isNotMinSignedValue () const |
| Return true if the value is not the smallest signed value. More... | |
| bool | isMinSignedValue () const |
| Return true if the value is the smallest signed value. More... | |
| bool | canTrap () const |
| Return true if evaluation of this constant could trap. More... | |
| bool | isThreadDependent () const |
| Return true if the value can vary between threads. More... | |
| bool | isDLLImportDependent () const |
| Return true if the value is dependent on a dllimport variable. More... | |
| bool | isConstantUsed () const |
| Return true if the constant has users other than constant expressions and other dangling things. More... | |
| bool | needsRelocation () const |
| This method classifies the entry according to whether or not it may generate a relocation entry. More... | |
| 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. More... | |
| Constant * | getAggregateElement (Constant *Elt) const |
| Constant * | getSplatValue () const |
| If this is a splat vector constant, meaning that all of the elements have the same value, return that value. More... | |
| 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. More... | |
| void | destroyConstant () |
| Called if some element of this constant is no longer valid. More... | |
| void | handleOperandChange (Value *, Value *) |
| This method is a special form of User::replaceUsesOfWith (which does not work on constants) that does work on constants. More... | |
| void | removeDeadConstantUsers () const |
| If there are any dead constant users dangling off of this constant, remove them. More... | |
| Constant * | stripPointerCasts () |
| const Constant * | stripPointerCasts () const |
Public Member Functions inherited from llvm::User | |
| User (const User &)=delete | |
| ~User () override=default | |
| void | operator delete (void *Usr) |
| Free memory allocated for User and Use objects. More... | |
| void | operator delete (void *, unsigned) |
| Placement delete - required by std, but never called. More... | |
| void | operator delete (void *, unsigned, bool) |
| Placement delete - required by std, but never called. More... | |
| Use * | getOperandList () |
| const Use * | getOperandList () const |
| 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. More... | |
| MutableArrayRef< uint8_t > | getDescriptor () |
| Returns the descriptor co-allocated with this User instance. More... | |
| void | setGlobalVariableNumOperands (unsigned NumOps) |
| Set the number of operands on a GlobalVariable. More... | |
| void | setNumHungOffUseOperands (unsigned NumOps) |
| Subclasses with hung off uses need to manage the operand count themselves. More... | |
| 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. More... | |
| void | replaceUsesOfWith (Value *From, Value *To) |
| Replace uses of one Value with another. More... | |
Public Member Functions inherited from llvm::Value | |
| Value (const Value &)=delete | |
| void | operator= (const Value &)=delete |
| virtual | ~Value () |
| void | dump () const |
| Support for debugging, callable in GDB: V->dump() More... | |
| Type * | getType () const |
| All values are typed, get the type of this value. More... | |
| LLVMContext & | getContext () const |
| All values hold a context through their type. More... | |
| bool | hasName () const |
| ValueName * | getValueName () const |
| void | setValueName (ValueName *VN) |
| StringRef | getName () const |
| Return a constant reference to the value's name. More... | |
| void | setName (const Twine &Name) |
| Change the name of the value. More... | |
| void | takeName (Value *V) |
| Transfer the name from V to this value. More... | |
| void | replaceAllUsesWith (Value *V) |
| Change all uses of this to point to a new Value. More... | |
| void | replaceNonMetadataUsesWith (Value *V) |
| Change non-metadata uses of this to point to a new Value. More... | |
| 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. More... | |
| void | assertModuleIsMaterialized () const |
| bool | 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 user of this value. More... | |
| bool | hasNUses (unsigned N) const |
| Return true if this Value has exactly N users. More... | |
| bool | hasNUsesOrMore (unsigned N) const |
| Return true if this value has N users or more. More... | |
| bool | isUsedInBasicBlock (const BasicBlock *BB) const |
| Check if this value is used in the specified basic block. More... | |
| unsigned | getNumUses () const |
| This method computes the number of uses of this Value. More... | |
| void | addUse (Use &U) |
| This method should only be used by the Use class. More... | |
| unsigned | getValueID () const |
| Return an ID for the concrete type of this object. More... | |
| unsigned | getRawSubclassOptionalData () const |
| Return the raw optional flags value contained in this value. More... | |
| void | clearSubclassOptionalData () |
| Clear the optional flags contained in this value. More... | |
| bool | hasSameSubclassOptionalData (const Value *V) const |
| Check the optional flags for equality. More... | |
| bool | hasValueHandle () const |
| Return true if there is a value handle associated with this value. More... | |
| bool | isUsedByMetadata () const |
| Return true if there is metadata referencing this value. More... | |
| bool | isSwiftError () const |
| Return true if this value is a swifterror value. More... | |
| Value * | stripPointerCasts () |
| Strip off pointer casts, all-zero GEPs, and aliases. More... | |
| const Value * | stripPointerCasts () const |
| Value * | stripPointerCastsNoFollowAliases () |
| Strip off pointer casts and all-zero GEPs. More... | |
| const Value * | stripPointerCastsNoFollowAliases () const |
| Value * | stripInBoundsConstantOffsets () |
| Strip off pointer casts and all-constant inbounds GEPs. More... | |
| const Value * | stripInBoundsConstantOffsets () const |
| Value * | stripAndAccumulateInBoundsConstantOffsets (const DataLayout &DL, APInt &Offset) |
| Accumulate offsets from stripInBoundsConstantOffsets(). More... | |
| const Value * | stripAndAccumulateInBoundsConstantOffsets (const DataLayout &DL, APInt &Offset) const |
| Value * | stripInBoundsOffsets () |
| Strip off pointer casts and inbounds GEPs. More... | |
| const Value * | stripInBoundsOffsets () const |
| unsigned | getPointerDereferenceableBytes (const DataLayout &DL, bool &CanBeNull) const |
| Returns the number of bytes known to be dereferenceable for the pointer value. More... | |
| unsigned | getPointerAlignment (const DataLayout &DL) const |
| Returns an alignment of the pointer value. More... | |
| Value * | DoPHITranslation (const BasicBlock *CurBB, const BasicBlock *PredBB) |
| Translate PHI node to its predecessor from the given basic block. More... | |
| const Value * | DoPHITranslation (const BasicBlock *CurBB, const BasicBlock *PredBB) const |
| void | mutateType (Type *Ty) |
| Mutate the type of this Value to be of the specified type. More... | |
| template<class Compare > | |
| void | sortUseList (Compare Cmp) |
| Sort the use-list. More... | |
| void | reverseUseList () |
| Reverse the use-list. More... | |
| void | print (raw_ostream &O, bool IsForDebug=false) const |
| Implement operator<< on Value. More... | |
| 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. More... | |
| void | printAsOperand (raw_ostream &O, bool PrintType, ModuleSlotTracker &MST) const |
Static Public Member Functions | |
| static bool | isElementTypeCompatible (Type *Ty) |
| Return true if a ConstantDataSequential can be formed with a vector or array of the specified element type. More... | |
| static bool | classof (const Value *V) |
| Methods for support type inquiry through isa, cast, and dyn_cast: More... | |
Static Public Member Functions inherited from llvm::ConstantData | |
| static bool | classof (const Value *V) |
| Methods to support type inquiry through isa, cast, and dyn_cast. More... | |
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. More... | |
| static Constant * | getAllOnesValue (Type *Ty) |
| Get the all ones value. More... | |
| 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. More... | |
Static Public Member Functions inherited from llvm::User | |
| static bool | classof (const Value *V) |
Protected Member Functions | |
| ConstantDataSequential (Type *ty, ValueTy VT, const char *Data) | |
| ~ConstantDataSequential () override | |
Protected Member Functions inherited from llvm::ConstantData | |
| ConstantData (Type *Ty, ValueTy VT) | |
| void * | operator new (size_t s) |
Protected Member Functions inherited from llvm::Constant | |
| Constant (Type *ty, ValueTy vty, Use *Ops, unsigned NumOps) | |
Protected Member Functions inherited from llvm::User | |
| void * | operator new (size_t Size) |
| Allocate a User with an operand pointer co-allocated. More... | |
| void * | operator new (size_t Size, unsigned Us) |
| Allocate a User with the operands co-allocated. More... | |
| void * | operator new (size_t Size, unsigned Us, unsigned DescBytes) |
| Allocate a User with the operands co-allocated. More... | |
| 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. More... | |
| void | growHungoffUses (unsigned N, bool IsPhi=false) |
| Grow the number of hung off uses. More... | |
| template<int Idx> | |
| Use & | Op () |
| template<int Idx> | |
| const Use & | Op () const |
Protected Member Functions inherited from llvm::Value | |
| Value (Type *Ty, unsigned scid) | |
| unsigned short | getSubclassDataFromValue () const |
| void | setValueSubclassData (unsigned short D) |
Static Protected Member Functions | |
| static Constant * | getImpl (StringRef Bytes, Type *Ty) |
| This is the underlying implementation of all of the ConstantDataSequential::get methods. More... | |
Static Protected Member Functions inherited from llvm::User | |
| template<int Idx, typename U > | |
| static Use & | OpFrom (const U *that) |
Friends | |
| class | LLVMContextImpl |
| class | Constant |
Additional Inherited Members | |
Public Types inherited from llvm::User | |
| typedef Use * | op_iterator |
| typedef const Use * | const_op_iterator |
| typedef iterator_range < op_iterator > | op_range |
| typedef iterator_range < const_op_iterator > | const_op_range |
Public Types inherited from llvm::Value | |
| enum | ValueTy |
| Concrete subclass of this. More... | |
| typedef use_iterator_impl< Use > | use_iterator |
| typedef use_iterator_impl < const Use > | const_use_iterator |
| typedef user_iterator_impl< User > | user_iterator |
| typedef user_iterator_impl < const User > | const_user_iterator |
Static Public Attributes inherited from llvm::Value | |
| static const unsigned | MaxAlignmentExponent = 29 |
| The maximum alignment for instructions. More... | |
| static const unsigned | MaximumAlignment = 1u << MaxAlignmentExponent |
Protected Types inherited from llvm::Value | |
| enum | : unsigned { NumUserOperandsBits = 28 } |
| 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. More... | |
| unsigned | NumUserOperands: NumUserOperandsBits |
| unsigned | IsUsedByMD: 1 |
| unsigned | HasName: 1 |
| unsigned | HasHungOffUses: 1 |
| unsigned | HasDescriptor: 1 |
ConstantDataSequential - A vector or array constant whose element type is a simple 1/2/4/8-byte integer or float/double, and whose elements are just simple data values (i.e.
ConstantInt/ConstantFP). This Constant node has no operands because it stores all of the elements of the constant as densely packed data, instead of as Value*'s.
This is the common base class of ConstantDataArray and ConstantDataVector.
Definition at line 564 of file Constants.h.
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inlineexplicitprotected |
Definition at line 581 of file Constants.h.
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inlineoverrideprotected |
Definition at line 583 of file Constants.h.
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delete |
Methods for support type inquiry through isa, cast, and dyn_cast:
Definition at line 661 of file Constants.h.
References llvm::Value::getValueID().
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inline |
If this array is isCString(), then this method returns the array (without the trailing null byte) as a StringRef.
Otherwise, it asserts out.
Definition at line 649 of file Constants.h.
References assert(), getAsString(), isCString(), llvm::StringRef::size(), and llvm::StringRef::substr().
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inline |
If this array is isString(), then this method returns the array as a StringRef.
Otherwise, it asserts out.
Definition at line 642 of file Constants.h.
References assert(), getRawDataValues(), and isString().
Referenced by emitGlobalConstantDataSequential(), getAsCString(), and isCString().
If this is a sequential container of floating point type, return the specified element as an APFloat.
Definition at line 2605 of file Constants.cpp.
References llvm::lltok::APFloat, llvm::Type::DoubleTyID, llvm::Type::FloatTyID, getElementType(), getTypeID(), llvm::Type::HalfTyID, llvm::APFloatBase::IEEEdouble(), llvm::APFloatBase::IEEEhalf(), llvm::APFloatBase::IEEEsingle(), and llvm_unreachable.
Referenced by getElementAsConstant().
Return a Constant for a specified index's element.
Note that this has to compute a new constant to return, so it isn't as efficient as getElementAsInteger/Float/Double.
Definition at line 2641 of file Constants.cpp.
References llvm::ConstantInt::get(), llvm::ConstantFP::get(), llvm::Value::getContext(), getElementAsAPFloat(), getElementAsInteger(), and getElementType().
Referenced by emitGlobalConstantDataSequential(), getLogBase2Vector(), getNegativeIsTrueBoolVec(), and llvm::ConstantDataVector::getSplatValue().
| double ConstantDataSequential::getElementAsDouble | ( | unsigned | i | ) | const |
If this is an sequential container of doubles, return the specified element as a double.
Definition at line 2633 of file Constants.cpp.
References assert(), and getElementType().
Referenced by llvm::ExecutionEngine::getConstantValue().
| float ConstantDataSequential::getElementAsFloat | ( | unsigned | i | ) | const |
If this is an sequential container of floats, return the specified element as a float.
Definition at line 2626 of file Constants.cpp.
References assert(), and getElementType().
Referenced by llvm::ExecutionEngine::getConstantValue().
| uint64_t ConstantDataSequential::getElementAsInteger | ( | unsigned | i | ) | const |
If this is a sequential container of integers (of any size), return the specified element in the low bits of a uint64_t.
Definition at line 2585 of file Constants.cpp.
References assert(), getElementType(), and llvm_unreachable.
Referenced by emitGlobalConstantDataSequential(), llvm::ExecutionEngine::getConstantValue(), and getElementAsConstant().
| uint64_t ConstantDataSequential::getElementByteSize | ( | ) | const |
Return the size (in bytes) of each element in the array/vector.
The size of the elements is known to be a multiple of one byte.
Definition at line 2321 of file Constants.cpp.
References getElementType(), and llvm::Type::getPrimitiveSizeInBits().
Referenced by emitGlobalConstantDataSequential(), getRawDataValues(), and llvm::ConstantDataVector::getSplatValue().
| Type * ConstantDataSequential::getElementType | ( | ) | const |
Return the element type of the array/vector.
Definition at line 2291 of file Constants.cpp.
References llvm::SequentialType::getElementType(), and getType().
Referenced by emitGlobalConstantDataSequential(), llvm::ExecutionEngine::getConstantValue(), getElementAsAPFloat(), getElementAsConstant(), getElementAsDouble(), getElementAsFloat(), getElementAsInteger(), getElementByteSize(), getNegativeIsTrueBoolVec(), and isString().
This is the underlying implementation of all of the ConstantDataSequential::get methods.
They all thunk down to here, providing the correct element type. We take the bytes in as a StringRef because we want an underlying "char*" to avoid TBAA type punning violations.
StringMap bucket, linked up by their Next pointers. Walk the list.
Definition at line 2344 of file Constants.cpp.
References assert(), llvm::LLVMContextImpl::CDSConstants, llvm::ConstantAggregateZero::get(), llvm::Type::getContext(), llvm::Type::getSequentialElementType(), isAllZeros(), isElementTypeCompatible(), and llvm::LLVMContext::pImpl.
Referenced by llvm::ConstantDataArray::get(), llvm::ConstantDataVector::get(), llvm::ConstantDataArray::getFP(), and llvm::ConstantDataVector::getFP().
| unsigned ConstantDataSequential::getNumElements | ( | ) | const |
Return the number of elements in the array or vector.
Definition at line 2314 of file Constants.cpp.
References getType(), and llvm::Type::getVectorNumElements().
Referenced by emitGlobalConstantDataSequential(), llvm::ExecutionEngine::getConstantValue(), getLogBase2Vector(), getNegativeIsTrueBoolVec(), getRawDataValues(), and llvm::ConstantDataVector::getSplatValue().
| StringRef ConstantDataSequential::getRawDataValues | ( | ) | const |
Return the raw, underlying, bytes of this data.
Note that this is an extremely tricky thing to work with, as it exposes the host endianness of the data elements.
Definition at line 2295 of file Constants.cpp.
References getElementByteSize(), and getNumElements().
Referenced by getAsString(), llvm::ConstantDataVector::getSplatValue(), and isRepeatedByteSequence().
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inline |
Specialize the getType() method to always return a SequentialType, which reduces the amount of casting needed in parts of the compiler.
Definition at line 619 of file Constants.h.
References llvm::Value::getType().
Referenced by emitGlobalConstantDataSequential(), getElementType(), getNumElements(), and isString().
| bool ConstantDataSequential::isCString | ( | ) | const |
This method returns true if the array "isString", ends with a null byte, and does not contains any other null bytes.
Definition at line 2653 of file Constants.cpp.
References llvm::StringRef::back(), llvm::StringRef::drop_back(), llvm::StringRef::find(), getAsString(), isString(), and llvm::StringRef::npos.
Referenced by getAsCString().
Return true if a ConstantDataSequential can be formed with a vector or array of the specified element type.
ConstantDataArray only works with normal float and int types that are stored densely in memory, not with things like i42 or x86_f80.
Definition at line 2299 of file Constants.cpp.
References llvm::Type::isDoubleTy(), llvm::Type::isFloatTy(), llvm::Type::isHalfTy(), and IT().
Referenced by getImpl(), llvm::ConstantVector::getSplat(), and llvm::ConstantDataVector::getSplat().
| bool ConstantDataSequential::isString | ( | ) | const |
This method returns true if this is an array of i8.
Definition at line 2649 of file Constants.cpp.
References getElementType(), getType(), and llvm::Type::isIntegerTy().
Referenced by emitGlobalConstantDataSequential(), getAsString(), and isCString().
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friend |
Definition at line 566 of file Constants.h.
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friend |
Definition at line 565 of file Constants.h.
1.8.6