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LLVM
3.7.0
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This is the shared class of boolean and integer constants. More...
#include <Constants.h>
Public Member Functions | |
| const APInt & | getValue () const |
| Return the constant as an APInt value reference. More... | |
| unsigned | getBitWidth () const |
| getBitWidth - Return the bitwidth of this constant. More... | |
| uint64_t | getZExtValue () const |
| Return the constant as a 64-bit unsigned integer value after it has been zero extended as appropriate for the type of this constant. More... | |
| int64_t | getSExtValue () const |
| Return the constant as a 64-bit integer value after it has been sign extended as appropriate for the type of this constant. More... | |
| bool | equalsInt (uint64_t V) const |
| A helper method that can be used to determine if the constant contained within is equal to a constant. More... | |
| IntegerType * | getType () const |
| getType - Specialize the getType() method to always return an IntegerType, which reduces the amount of casting needed in parts of the compiler. More... | |
| bool | isNegative () const |
| bool | isZero () const |
| This is just a convenience method to make client code smaller for a common code. More... | |
| bool | isOne () const |
| This is just a convenience method to make client code smaller for a common case. More... | |
| bool | isMinusOne () const |
| This function will return true iff every bit in this constant is set to true. More... | |
| bool | isMaxValue (bool isSigned) const |
| This function will return true iff this constant represents the largest value that may be represented by the constant's type. More... | |
| bool | isMinValue (bool isSigned) const |
| This function will return true iff this constant represents the smallest value that may be represented by this constant's type. More... | |
| bool | uge (uint64_t Num) const |
| This function will return true iff this constant represents a value with active bits bigger than 64 bits or a value greater than the given uint64_t value. More... | |
| uint64_t | getLimitedValue (uint64_t Limit=~0ULL) const |
| getLimitedValue - If the value is smaller than the specified limit, return it, otherwise return the limit value. More... | |
Public Member Functions inherited from llvm::Constant | |
| bool | isNullValue () const |
| isNullValue - 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 |
| isAllOnesValue - Return true if this is the value that would be returned by getAllOnesValue. More... | |
| bool | isNegativeZeroValue () const |
| isNegativeZeroValue - 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 |
| canTrap - Return true if evaluation of this constant could trap. More... | |
| bool | isThreadDependent () const |
| isThreadDependent - 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 |
| isConstantUsed - Return true if the constant has users other than constant exprs and other dangling things. More... | |
| PossibleRelocationsTy | getRelocationInfo () const |
| getRelocationInfo - This method classifies the entry according to whether or not it may generate a relocation entry. More... | |
| Constant * | getAggregateElement (unsigned Elt) const |
| getAggregateElement - 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 |
| getSplatValue - 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 *, Use *) |
| This method is a special form of User::replaceUsesOfWith (which does not work on constants) that does work on constants. More... | |
| void | removeDeadConstantUsers () const |
| removeDeadConstantUsers - 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 () override | |
| 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 |
| void | setGlobalVariableNumOperands (unsigned NumOps) |
| Set the number of operands on a GlobalVariable. More... | |
| void | setFunctionNumOperands (unsigned NumOps) |
| Set the number of operands on a Function. 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 () |
| 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 | |
| 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 | 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... | |
| bool | use_empty () 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 > | uses () |
| iterator_range < const_use_iterator > | uses () const |
| bool | user_empty () 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 > | 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... | |
| void | intersectOptionalDataWith (const Value *V) |
| Clear any optional flags not set in the given Value. 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... | |
| 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 |
| 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) const |
| Implement operator<< on Value. More... | |
| void | print (raw_ostream &O, ModuleSlotTracker &MST) 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 ConstantInt * | getTrue (LLVMContext &Context) |
| static ConstantInt * | getFalse (LLVMContext &Context) |
| static Constant * | getTrue (Type *Ty) |
| static Constant * | getFalse (Type *Ty) |
| static Constant * | get (Type *Ty, uint64_t V, bool isSigned=false) |
| If Ty is a vector type, return a Constant with a splat of the given value. More... | |
| static ConstantInt * | get (IntegerType *Ty, uint64_t V, bool isSigned=false) |
| Return a ConstantInt with the specified integer value for the specified type. More... | |
| static ConstantInt * | getSigned (IntegerType *Ty, int64_t V) |
| Return a ConstantInt with the specified value for the specified type. More... | |
| static Constant * | getSigned (Type *Ty, int64_t V) |
| static ConstantInt * | get (LLVMContext &Context, const APInt &V) |
| Return a ConstantInt with the specified value and an implied Type. More... | |
| static ConstantInt * | get (IntegerType *Ty, StringRef Str, uint8_t radix) |
| Return a ConstantInt constructed from the string strStart with the given radix. More... | |
| static Constant * | get (Type *Ty, const APInt &V) |
| If Ty is a vector type, return a Constant with a splat of the given value. More... | |
| static bool | isValueValidForType (Type *Ty, uint64_t V) |
| This static method returns true if the type Ty is big enough to represent the value V. More... | |
| static bool | isValueValidForType (Type *Ty, int64_t V) |
| 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) |
| static Constant * | getAllOnesValue (Type *Ty) |
| Get the all ones value. More... | |
| static Constant * | getIntegerValue (Type *Ty, const APInt &V) |
| getIntegerValue - 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 | |
| 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... | |
| User (Type *ty, unsigned vty, Use *OpList, 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) |
Friends | |
| class | Constant |
Additional Inherited Members | |
Public Types inherited from llvm::Constant | |
| enum | PossibleRelocationsTy { NoRelocation = 0, LocalRelocation = 1, GlobalRelocations = 2 } |
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 = 29 } |
| The number of operands in the subclass. More... | |
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. More... | |
| unsigned | NumUserOperands: NumUserOperandsBits |
| bool | IsUsedByMD: 1 |
| bool | HasName: 1 |
| bool | HasHungOffUses: 1 |
This is the shared class of boolean and integer constants.
This class represents both boolean and integral constants. Class for constant integers.
Definition at line 47 of file Constants.h.
Methods to support type inquiry through isa, cast, and dyn_cast.
Definition at line 224 of file Constants.h.
References llvm::Value::getValueID().
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A helper method that can be used to determine if the constant contained within is equal to a constant.
This only works for very small values, because this is all that can be represented with all types. Determine if this constant's value is same as an unsigned char.
Definition at line 133 of file Constants.h.
If Ty is a vector type, return a Constant with a splat of the given value.
Otherwise return a ConstantInt for the given value.
Definition at line 582 of file Constants.cpp.
References llvm::C, llvm::Type::getScalarType(), and llvm::ConstantVector::getSplat().
Referenced by llvm::Module::addModuleFlag(), llvm::AddOne(), AddWithOverflow(), AnalyzeLoadFromClobberingMemInst(), BitCastConstantVector(), CloneLoopBlocks(), CollectInsertionElements(), CollectShuffleElements(), CollectSingleShuffleElements(), combineLoadToNewType(), llvm::InstCombiner::commonIDivTransforms(), llvm::InstCombiner::commonShiftTransforms(), llvm::ObjectSizeOffsetEvaluator::compute(), llvm::ComputeMultiple(), computePointerICmp(), ConnectProlog(), llvm::ConstantFoldBinaryInstruction(), llvm::ConstantFoldCastInstruction(), llvm::ConstantFoldCompareInstruction(), ConstantFoldConvertToInt(), ConstantFoldGetElementPtrImpl(), llvm::ConstantFoldInsertElementInstruction(), llvm::ConstantFoldInstOperands(), llvm::ConstantFoldLoadFromConstPtr(), ConstantFoldScalarCall(), llvm::ConstantFoldSelectInstruction(), llvm::ConstantFoldShuffleVectorInstruction(), convertMemSetToLoop(), ConvertShiftToMul(), convertTransferToLoop(), llvm::IRBuilder< true, TargetFolder >::CreateAlignmentAssumption(), llvm::IRBuilder< true, TargetFolder >::CreateAnd(), createAndInstr(), llvm::IRBuilder< true, TargetFolder >::CreateAShr(), llvm::MDBuilder::createBranchWeights(), llvm::IRBuilder< true, TargetFolder >::CreateConstGEP1_32(), llvm::IRBuilder< true, TargetFolder >::CreateConstGEP1_64(), llvm::IRBuilder< true, TargetFolder >::CreateConstGEP2_32(), llvm::IRBuilder< true, TargetFolder >::CreateConstGEP2_64(), llvm::IRBuilder< true, TargetFolder >::CreateConstInBoundsGEP1_32(), llvm::IRBuilder< true, TargetFolder >::CreateConstInBoundsGEP1_64(), llvm::IRBuilder< true, TargetFolder >::CreateConstInBoundsGEP2_32(), llvm::IRBuilder< true, TargetFolder >::CreateConstInBoundsGEP2_64(), llvm::MDBuilder::createFunctionEntryCount(), CreateGCRelocates(), llvm::IRBuilder< true, TargetFolder >::CreateGlobalStringPtr(), llvm::orc::createIRTypedAddress(), llvm::IRBuilder< true, TargetFolder >::CreateLShr(), createMalloc(), createMaskedBitTest(), llvm::IRBuilder< true, TargetFolder >::CreateOr(), createPrivateGlobalForSourceLoc(), CreatePrologue(), llvm::MDBuilder::createRange(), llvm::IRBuilder< true, TargetFolder >::CreateShl(), llvm::MDBuilder::createTBAANode(), llvm::MDBuilder::createTBAAScalarTypeNode(), llvm::MDBuilder::createTBAAStructNode(), llvm::MDBuilder::createTBAAStructTagNode(), llvm::MDBuilder::createTBAAStructTypeNode(), llvm::IRBuilder< true, TargetFolder >::CreateVectorSplat(), llvm::IRBuilder< true, TargetFolder >::CreateXor(), decomposeBitTestICmp(), DecomposeSimpleLinearExpr(), dyn_castNotVal(), llvm::EmitFWrite(), llvm::EmitGEPOffset(), llvm::ARMBaseRegisterInfo::emitLoadConstPool(), llvm::AArch64TargetLowering::emitLoadLinked(), llvm::ARMTargetLowering::emitLoadLinked(), llvm::EmitStrChr(), emitThumb1LoadConstPool(), emitThumb2LoadConstPool(), EvaluateGEPOffsetExpression(), ExtractConstantBytes(), FactorOutConstant(), llvm::FastISel::fastEmit_ri_(), findBasePointer(), llvm::InstCombiner::FoldAndOfFCmps(), llvm::InstCombiner::FoldAndOfICmps(), FoldBitCast(), llvm::InstCombiner::FoldCmpLoadFromIndexedGlobal(), llvm::InstCombiner::FoldICmpAddOpCst(), llvm::InstCombiner::FoldICmpCstShlCst(), llvm::InstCombiner::FoldICmpCstShrCst(), llvm::InstCombiner::FoldICmpShrCst(), foldLogOpOfMaskedICmps(), llvm::InstCombiner::FoldOrOfFCmps(), llvm::InstCombiner::FoldOrOfICmps(), FoldReinterpretLoadFromConstPtr(), llvm::InstCombiner::FoldShiftByConstant(), foldUDivNegCst(), foldUDivPow2Cst(), foldUDivShl(), getAISize(), llvm::ConstantExpr::getAlignOf(), llvm::Constant::getAllOnesValue(), llvm::ConstantExpr::getBinOpIdentity(), getBinOpsForFactorization(), llvm::LazyValueInfo::getConstant(), llvm::SelectionDAG::getConstant(), llvm::ScalarEvolution::getConstant(), GetConstantInt(), llvm::LazyValueInfo::getConstantOnEdge(), getEdgeValueLocal(), llvm::ConstantDataSequential::getElementAsConstant(), getFalse(), getFCmpValue(), getFoldedAlignOf(), getFoldedSizeOf(), llvm::getICmpValue(), getIdentityValue(), llvm::IRBuilderBase::getInt(), llvm::IRBuilderBase::getInt1(), llvm::IRBuilderBase::getInt16(), llvm::IRBuilderBase::getInt32(), llvm::IRBuilderBase::getInt64(), llvm::IRBuilderBase::getInt8(), llvm::Constant::getIntegerValue(), llvm::IRBuilderBase::getIntN(), getLogBase2Vector(), GetMemInstValueForLoad(), llvm::MDNode::getMostGenericTBAA(), llvm::ScalarEvolution::getMulExpr(), llvm::Constant::getNullValue(), llvm::SCEVAddRecExpr::getNumIterationsInRange(), llvm::ConstantExpr::getOffsetOf(), getOne(), llvm::RecurrenceDescriptor::getRecurrenceIdentity(), GetSelectFoldableConstant(), GetShiftedValue(), llvm::ConstantExpr::getSizeOf(), llvm::ScalarEvolution::getSMaxExpr(), getTrue(), llvm::ScalarEvolution::getUMaxExpr(), llvm::InlineFunction(), llvm::DIBuilder::insertDbgValueIntrinsic(), insertSinCosCall(), llvm::isBytewiseValue(), LLVMConstInt(), LLVMConstIntOfArbitraryPrecision(), LLVMConstIntOfString(), LLVMConstIntOfStringAndSize(), llvm::XCoreInstrInfo::loadImmediate(), LowerBSWAP(), LowerCTLZ(), LowerCTPOP(), LowerFABSorFNEG(), llvm::IntrinsicLowering::LowerIntrinsicCall(), llvm::MergeBasicBlockIntoOnlyPred(), PerformHeapAllocSRoA(), replaceGEPIdxWithZero(), llvm::replaceSymbolicStrideSCEV(), ScalarizeMaskedLoad(), ScalarizeMaskedStore(), llvm::FastISel::selectIntrinsicCall(), ShrinkDemandedConstant(), SimplifyCondBranchToCondBranch(), SimplifyDiv(), SimplifyFCmpInst(), SimplifyICmpInst(), simplifyOneLoop(), llvm::InstCombiner::SliceUpIllegalIntegerPHI(), SolveQuadraticEquation(), stripAndComputeConstantOffsets(), llvm::SubOne(), SubWithOverflow(), SymbolicallyEvaluateBinop(), SymbolicallyEvaluateGEP(), tryMergeRange(), TryToOptimizeStoreOfMallocToGlobal(), TryToShrinkGlobalToBoolean(), TurnSwitchRangeIntoICmp(), llvm::UpgradeIntrinsicCall(), llvm::InstCombiner::visitAdd(), llvm::ObjectSizeOffsetEvaluator::visitAllocaInst(), llvm::InstCombiner::visitAllocaInst(), llvm::InstCombiner::visitAllocSite(), llvm::InstCombiner::visitCallInst(), llvm::InstCombiner::visitExtractElementInst(), llvm::InstCombiner::visitICmpInst(), llvm::InstCombiner::visitICmpInstWithInstAndIntCst(), llvm::InstCombiner::visitMul(), llvm::InstCombiner::visitSDiv(), llvm::InstCombiner::visitSExt(), llvm::InstCombiner::visitShuffleVectorInst(), llvm::InstCombiner::visitSRem(), llvm::InstCombiner::visitSwitchInst(), llvm::InstCombiner::visitTrunc(), llvm::InstCombiner::visitUDiv(), llvm::InstCombiner::visitXor(), llvm::InstCombiner::visitZExt(), and llvm::BasicBlock::~BasicBlock().
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Return a ConstantInt with the specified integer value for the specified type.
If the type is wider than 64 bits, the value will be zero-extended to fit the type, unless isSigned is true, in which case the value will be interpreted as a 64-bit signed integer and sign-extended to fit the type. Get a ConstantInt for a specific value.
Definition at line 592 of file Constants.cpp.
References llvm::IntegerType::getBitWidth(), and llvm::Type::getContext().
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Return a ConstantInt with the specified value and an implied Type.
The type is the integer type that corresponds to the bit width of the value.
Definition at line 569 of file Constants.cpp.
References llvm::IntegerType::get(), llvm::APInt::getBitWidth(), getType(), llvm::LLVMContextImpl::IntConstants, llvm::LLVMContext::pImpl, and llvm::Slot.
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Return a ConstantInt constructed from the string strStart with the given radix.
Definition at line 617 of file Constants.cpp.
References llvm::IntegerType::getBitWidth(), and llvm::Type::getContext().
If Ty is a vector type, return a Constant with a splat of the given value.
Otherwise return a ConstantInt for the given value.
Definition at line 605 of file Constants.cpp.
References llvm::C, llvm::Type::getContext(), llvm::Type::getScalarType(), llvm::ConstantVector::getSplat(), and getType().
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getBitWidth - Return the bitwidth of this constant.
Definition at line 111 of file Constants.h.
References llvm::APInt::getBitWidth().
Referenced by decomposeBitTestICmp(), emitGlobalConstantLargeInt(), llvm::SelectionDAG::getConstant(), ProcessUGT_ADDCST_ADD(), ProcessUMulZExtIdiom(), SimplifyICmpInst(), llvm::InstCombiner::visitICmpInst(), and llvm::InstCombiner::visitICmpInstWithInstAndIntCst().
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Definition at line 537 of file Constants.cpp.
References get(), llvm::Type::getInt1Ty(), llvm::LLVMContext::pImpl, and llvm::LLVMContextImpl::TheFalseVal.
Referenced by llvm::ConstantFoldBinaryInstruction(), llvm::ConstantFoldCompareInstruction(), getFalse(), llvm::IRBuilderBase::getFalse(), OptimizeGlobalAddressOfMalloc(), SimplifyFCmpInst(), SimplifyICmpInst(), llvm::ScalarEvolution::SimplifyICmpOperands(), TryToShrinkGlobalToBoolean(), TryToSimplifyUncondBranchWithICmpInIt(), llvm::InstCombiner::visitICmpInst(), and llvm::SelectionDAGBuilder::visitSwitchCase().
Definition at line 556 of file Constants.cpp.
References llvm::dyn_cast(), llvm::Type::getContext(), llvm::SequentialType::getElementType(), getFalse(), llvm::VectorType::getNumElements(), llvm::ConstantVector::getSplat(), and llvm::Type::isIntegerTy().
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getLimitedValue - If the value is smaller than the specified limit, return it, otherwise return the limit value.
This causes the value to saturate to the limit.
Definition at line 219 of file Constants.h.
References llvm::APInt::getLimitedValue().
Referenced by CanEvaluateShifted(), CanEvaluateShuffled(), llvm::InstCombiner::FoldICmpShrCst(), llvm::InstCombiner::FoldShiftByConstant(), isDereferenceableFromAttribute(), llvm::InstCombiner::visitICmpInst(), and llvm::InstCombiner::visitICmpInstWithInstAndIntCst().
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Return the constant as a 64-bit integer value after it has been sign extended as appropriate for the type of this constant.
Note that this method can assert if the value does not fit in 64 bits. Return the sign extended value.
Definition at line 125 of file Constants.h.
References llvm::APInt::getSExtValue().
Referenced by canFoldIVIncExpr(), EvaluateGEPOffsetExpression(), GetOffsetFromIndex(), isAddFoldable(), isIndexInRangeOfSequentialType(), llvm::isInductionPHI(), llvm::parseEHActions(), and X86ChooseCmpImmediateOpcode().
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Return a ConstantInt with the specified value for the specified type.
The value V will be canonicalized to a an unsigned APInt. Accessing it with either getSExtValue() or getZExtValue() will yield a correctly sized and signed value for the type Ty. Get a ConstantInt for a specific signed value.
Definition at line 597 of file Constants.cpp.
Referenced by llvm::InstCombiner::FoldOrOfICmps(), generateUnsignedDivisionCode(), insertFastDiv(), llvm::isInductionPHI(), llvm::InstCombiner::visitLShr(), and llvm::InstCombiner::visitOr().
Definition at line 601 of file Constants.cpp.
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Definition at line 530 of file Constants.cpp.
References get(), llvm::Type::getInt1Ty(), llvm::LLVMContext::pImpl, and llvm::LLVMContextImpl::TheTrueVal.
Referenced by llvm::LoopAccessInfo::addRuntimeCheck(), computeKnownBitsFromOperator(), llvm::ConstantFoldCompareInstruction(), llvm::SelectionDAGBuilder::EmitBranchForMergedCondition(), getTrue(), llvm::IRBuilderBase::getTrue(), OptimizeGlobalAddressOfMalloc(), SimplifyFCmpInst(), SimplifyICmpInst(), TryToSimplifyUncondBranchWithICmpInIt(), TurnSwitchRangeIntoICmp(), llvm::InstCombiner::visitFree(), llvm::InstCombiner::visitICmpInst(), and llvm::SelectionDAGBuilder::visitSwitchCase().
Definition at line 544 of file Constants.cpp.
References llvm::dyn_cast(), llvm::Type::getContext(), llvm::SequentialType::getElementType(), llvm::VectorType::getNumElements(), llvm::ConstantVector::getSplat(), getTrue(), and llvm::Type::isIntegerTy().
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getType - Specialize the getType() method to always return an IntegerType, which reduces the amount of casting needed in parts of the compiler.
Definition at line 140 of file Constants.h.
References llvm::Value::getType().
Referenced by llvm::IRBuilderBase::CreateLifetimeEnd(), llvm::IRBuilderBase::CreateLifetimeStart(), decomposeBitTestICmp(), emitGlobalConstantLargeInt(), llvm::InstCombiner::FoldAndOfICmps(), llvm::FoldBranchToCommonDest(), FoldCondBranchOnPHI(), llvm::InstCombiner::FoldICmpAddOpCst(), llvm::InstCombiner::FoldOrOfICmps(), get(), GetConstantInt(), llvm::SCEVConstant::getType(), llvm::isInductionPHI(), isRunOfOnes(), ShrinkDemandedConstant(), SwitchToLookupTable(), tryMergeRange(), llvm::InstCombiner::visitICmpInst(), llvm::InstCombiner::visitICmpInstWithInstAndIntCst(), and llvm::InstCombiner::visitXor().
Return the constant as an APInt value reference.
This allows clients to obtain a copy of the value, with all its precision in tact. Return the constant's value.
Definition at line 106 of file Constants.h.
Referenced by llvm::GEPOperator::accumulateConstantOffset(), llvm::DwarfUnit::addConstantValue(), CanEvaluateShifted(), canFoldIVIncExpr(), llvm::computeKnownBitsFromRangeMetadata(), llvm::ComputeMultiple(), computePointerICmp(), llvm::ConstantFoldTerminator(), ConstantIntSortPredicate(), decomposeBitTestICmp(), DemandedBitsLHSMask(), llvm::BitTracker::MachineEvaluator::eIMM(), emitDebugValueComment(), emitGlobalConstantLargeInt(), ExtractBranchMetadata(), FactorOutConstant(), llvm::InstCombiner::FoldAndOfICmps(), llvm::InstCombiner::FoldICmpAddOpCst(), llvm::InstCombiner::FoldICmpCstShlCst(), llvm::InstCombiner::FoldICmpCstShrCst(), llvm::InstCombiner::FoldICmpDivCst(), foldLogOpOfMaskedICmps(), llvm::InstCombiner::FoldOrOfICmps(), llvm::InstCombiner::FoldOrWithConstants(), llvm::InstCombiner::FoldXorWithConstants(), gcd(), GetBranchWeights(), llvm::SelectionDAG::getConstant(), llvm::Function::getEntryCount(), getExactSDiv(), llvm::MDNode::getMostGenericRange(), llvm::SCEVAddRecExpr::getNumIterationsInRange(), getPredicateResult(), GetRangeFromMetadata(), GetShiftedValue(), llvm::ScalarEvolution::getSmallConstantTripCount(), llvm::ScalarEvolution::getSmallConstantTripMultiple(), getTypeOfMaskedICmp(), llvm::ScalarEvolution::getUDivExpr(), getValueFromFromCondition(), HasAddOverflow(), HasSubOverflow(), llvm::ConstantExpr::isGEPWithNoNotionalOverIndexing(), isHighOnes(), isIndexInRangeOfSequentialType(), isLikelyComplexAddressComputation(), llvm::SCEV::isNonConstantNegative(), isObjectSizeLessThanOrEq(), isRemainderZero(), isRunOfOnes(), isSignBitCheck(), llvm::isStridedPtr(), MaintainNoSignedWrap(), MatchNotExpr(), false::next_type(), ProcessUGT_ADDCST_ADD(), ProcessUMulZExtIdiom(), rangeMetadataExcludesValue(), ShrinkDemandedConstant(), SimplifyAndOfICmps(), SimplifyDiv(), SimplifyICmpInst(), SimplifyOrInst(), SimplifyOrOfICmps(), SwitchToLookupTable(), tryMergeRange(), llvm::InstCombiner::visitAdd(), llvm::InstCombiner::visitAnd(), llvm::ObjectSizeOffsetVisitor::visitCallSite(), llvm::InstCombiner::visitICmpInst(), llvm::InstCombiner::visitICmpInstWithInstAndIntCst(), llvm::InstCombiner::visitOr(), llvm::InstCombiner::visitSub(), and llvm::InstCombiner::visitXor().
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Return the constant as a 64-bit unsigned integer value after it has been zero extended as appropriate for the type of this constant.
Note that this method can assert if the value does not fit in 64 bits. Return the zero extended value.
Definition at line 117 of file Constants.h.
References llvm::APInt::getZExtValue().
Referenced by llvm::GEPOperator::accumulateConstantOffset(), aliasSameBasePointerGEPs(), AnalyzeLoadFromClobberingMemInst(), cacheAnnotationFromMD(), CanEvaluateShifted(), CollectInsertionElements(), computeKnownBitsFromAssume(), llvm::ComputeMultiple(), llvm::MachineInstr::emitError(), EvaluateGEPOffsetExpression(), EvaluateStoreInto(), ExtractConstantBytes(), llvm::InstCombiner::FoldCmpLoadFromIndexedGlobal(), FoldCondBranchOnPHI(), llvm::InstCombiner::FoldShiftByConstant(), llvm::MemIntrinsic::getAlignment(), llvm::getConstantStringInfo(), llvm::ScalarEvolution::getGEPExpr(), GetOffsetFromIndex(), GetShiftedValue(), llvm::ScalarEvolution::getSmallConstantTripCount(), llvm::ScalarEvolution::getSmallConstantTripMultiple(), llvm::CompositeType::indexValid(), isGEPKnownNonNull(), llvm::ConstantExpr::isGEPWithNoNotionalOverIndexing(), IsUserOfGlobalSafeForSRA(), llvm::PatternMatch::specific_intval::match(), matchPairwiseReduction(), matchVectorSplittingReduction(), llvm::orc::CtorDtorIterator::operator*(), OptimizeGlobalAddressOfMalloc(), OptimizeIntToFloatBitCast(), llvm::FunctionLoweringInfo::set(), llvm::InstCombiner::visitCallInst(), llvm::InstCombiner::visitICmpInstWithInstAndIntCst(), and llvm::InstCombiner::visitTrunc().
This function will return true iff this constant represents the largest value that may be represented by the constant's type.
Definition at line 186 of file Constants.h.
References llvm::APInt::isMaxSignedValue(), and llvm::APInt::isMaxValue().
Referenced by isSignBitCheck().
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This function will return true iff every bit in this constant is set to true.
Definition at line 177 of file Constants.h.
References llvm::APInt::isAllOnesValue().
Referenced by llvm::InstCombiner::simplifyRangeCheck().
This function will return true iff this constant represents the smallest value that may be represented by this constant's type.
Definition at line 198 of file Constants.h.
References llvm::APInt::isMinSignedValue(), and llvm::APInt::isMinValue().
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Definition at line 156 of file Constants.h.
References llvm::APInt::isNegative().
Referenced by llvm::InstCombiner::FoldICmpDivCst(), getMinFromExprs(), HasAddOverflow(), HasSubOverflow(), SimplifyICmpInst(), and llvm::InstCombiner::visitICmpInstWithInstAndIntCst().
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This is just a convenience method to make client code smaller for a common case.
It also correctly performs the comparison without the potential for an assertion from getZExtValue(). Determine if the value is one.
Definition at line 169 of file Constants.h.
Referenced by llvm::ConstantFoldCastInstruction(), llvm::FoldBranchToCommonDest(), llvm::InstCombiner::FoldICmpDivCst(), handleBranchExpect(), IsConstantOne(), isSelect01(), and isSignTest().
This static method returns true if the type Ty is big enough to represent the value V.
This can be used to avoid having the get method assert when V is larger than Ty can represent. Note that there are two versions of this method, one for unsigned and one for signed integers. Although ConstantInt canonicalizes everything to an unsigned integer, the signed version avoids callers having to convert a signed quantity to the appropriate unsigned type before calling the method.
Definition at line 1305 of file Constants.cpp.
References llvm::Type::getIntegerBitWidth(), llvm::Type::isIntegerTy(), and llvm::Max.
Referenced by llvm::X86TargetLowering::LowerAsmOperandForConstraint().
Definition at line 1315 of file Constants.cpp.
References llvm::Type::getIntegerBitWidth(), llvm::Type::isIntegerTy(), and llvm::Max.
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This is just a convenience method to make client code smaller for a common code.
It also correctly performs the comparison without the potential for an assertion from getZExtValue().
Definition at line 161 of file Constants.h.
Referenced by llvm::GEPOperator::accumulateConstantOffset(), decomposeBitTestICmp(), evaluateFCmpRelation(), EvaluateGEPOffsetExpression(), evaluateICmpRelation(), FactorOutConstant(), llvm::InstCombiner::FoldAndOfICmps(), llvm::InstCombiner::FoldICmpDivCst(), llvm::InstCombiner::FoldOrOfICmps(), GEPToVectorIndex(), llvm::getConstantStringInfo(), llvm::getMergedGlobalExpr(), GetOffsetFromIndex(), getTypeOfMaskedICmp(), hasOnlyOneNonZeroIndex(), InstructionDereferencesPointer(), isSelect01(), isSignBitCheck(), isSignTest(), isSimpleEnoughPointerToCommit(), llvm::MemIntrinsic::isVolatile(), llvm::FastISel::selectIntrinsicCall(), SimplifyICmpInst(), llvm::InstCombiner::simplifyRangeCheck(), llvm::InstCombiner::visitAllocSite(), llvm::InstCombiner::visitICmpInst(), and llvm::InstCombiner::visitICmpInstWithInstAndIntCst().
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Definition at line 60 of file Constants.h.
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This function will return true iff this constant represents a value with active bits bigger than 64 bits or a value greater than the given uint64_t value.
Definition at line 210 of file Constants.h.
References llvm::APInt::getActiveBits(), and llvm::APInt::getZExtValue().
Referenced by llvm::InstCombiner::FoldShiftByConstant(), and llvm::InstCombiner::visitICmpInstWithInstAndIntCst().
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Definition at line 54 of file Constants.h.
1.8.6