This class represents a truncation of floating point types. More...
#include "llvm/IR/Instructions.h"
Inheritance diagram for llvm::FPTruncInst:
Collaboration diagram for llvm::FPTruncInst:
Public Member Functions | |
| FPTruncInst (Value *S, Type *Ty, const Twine &NameStr="", Instruction *InsertBefore=nullptr) | |
| Constructor with insert-before-instruction semantics. More... | |
| FPTruncInst (Value *S, Type *Ty, const Twine &NameStr, BasicBlock *InsertAtEnd) | |
| Constructor with insert-before-instruction semantics. More... | |
 Public Member Functions inherited from llvm::CastInst | |
| bool | isIntegerCast () const |
| There are several places where we need to know if a cast instruction only deals with integer source and destination types. More... | |
| bool | isLosslessCast () const |
| A lossless cast is one that does not alter the basic value. More... | |
| bool | isNoopCast (const DataLayout &DL) const |
| Determine if this cast is a no-op cast. More... | |
| Instruction::CastOps | getOpcode () const |
| Return the opcode of this CastInst. More... | |
| Type * | getSrcTy () const |
| Return the source type, as a convenience. More... | |
| Type * | getDestTy () const |
| Return the destination type, as a convenience. More... | |
| Public Member Functions inherited from llvm::UnaryInstruction | |
| void * | operator new (size_t s) |
| DECLARE_TRANSPARENT_OPERAND_ACCESSORS (Value) | |
| Transparently provide more efficient getOperand methods. More... | |
| Public Member Functions inherited from llvm::Instruction | |
| Instruction (const Instruction &)=delete | |
| Instruction & | operator= (const Instruction &)=delete |
| Instruction * | user_back () |
| Specialize the methods defined in Value, as we know that an instruction can only be used by other instructions. More... | |
| const Instruction * | user_back () const |
| const BasicBlock * | getParent () const |
| BasicBlock * | getParent () |
| const Module * | getModule () const |
| Return the module owning the function this instruction belongs to or nullptr it the function does not have a module. More... | |
| Module * | getModule () |
| const Function * | getFunction () const |
| Return the function this instruction belongs to. More... | |
| Function * | getFunction () |
| void | removeFromParent () |
| This method unlinks 'this' from the containing basic block, but does not delete it. More... | |
| SymbolTableList< Instruction >::iterator | eraseFromParent () |
| This method unlinks 'this' from the containing basic block and deletes it. More... | |
| void | insertBefore (Instruction *InsertPos) |
| Insert an unlinked instruction into a basic block immediately before the specified instruction. More... | |
| void | insertAfter (Instruction *InsertPos) |
| Insert an unlinked instruction into a basic block immediately after the specified instruction. More... | |
| void | moveBefore (Instruction *MovePos) |
| Unlink this instruction from its current basic block and insert it into the basic block that MovePos lives in, right before MovePos. More... | |
| void | moveBefore (BasicBlock &BB, SymbolTableList< Instruction >::iterator I) |
| Unlink this instruction and insert into BB before I. More... | |
| void | moveAfter (Instruction *MovePos) |
| Unlink this instruction from its current basic block and insert it into the basic block that MovePos lives in, right after MovePos. More... | |
| unsigned | getOpcode () const |
| Returns a member of one of the enums like Instruction::Add. More... | |
| const char * | getOpcodeName () const |
| bool | isTerminator () const |
| bool | isUnaryOp () const |
| bool | isBinaryOp () const |
| bool | isIntDivRem () const |
| bool | isShift () |
| bool | isCast () const |
| bool | isFuncletPad () const |
| bool | isExceptionalTerminator () const |
| bool | isLogicalShift () const |
| Return true if this is a logical shift left or a logical shift right. More... | |
| bool | isArithmeticShift () const |
| Return true if this is an arithmetic shift right. More... | |
| bool | isBitwiseLogicOp () const |
| Return true if this is and/or/xor. More... | |
| bool | hasMetadata () const |
| Return true if this instruction has any metadata attached to it. More... | |
| bool | hasMetadataOtherThanDebugLoc () const |
| Return true if this instruction has metadata attached to it other than a debug location. More... | |
| MDNode * | getMetadata (unsigned KindID) const |
| Get the metadata of given kind attached to this Instruction. More... | |
| MDNode * | getMetadata (StringRef Kind) const |
| Get the metadata of given kind attached to this Instruction. More... | |
| void | getAllMetadata (SmallVectorImpl< std::pair< unsigned, MDNode *>> &MDs) const |
| Get all metadata attached to this Instruction. More... | |
| void | getAllMetadataOtherThanDebugLoc (SmallVectorImpl< std::pair< unsigned, MDNode *>> &MDs) const |
| This does the same thing as getAllMetadata, except that it filters out the debug location. More... | |
| void | getAAMetadata (AAMDNodes &N, bool Merge=false) const |
| Fills the AAMDNodes structure with AA metadata from this instruction. More... | |
| void | setMetadata (unsigned KindID, MDNode *Node) |
| Set the metadata of the specified kind to the specified node. More... | |
| void | setMetadata (StringRef Kind, MDNode *Node) |
| void | copyMetadata (const Instruction &SrcInst, ArrayRef< unsigned > WL=ArrayRef< unsigned >()) |
Copy metadata from SrcInst to this instruction. More... | |
| void | swapProfMetadata () |
| If the instruction has "branch_weights" MD_prof metadata and the MDNode has three operands (including name string), swap the order of the metadata. More... | |
| void | setAAMetadata (const AAMDNodes &N) |
| Sets the metadata on this instruction from the AAMDNodes structure. More... | |
| bool | extractProfMetadata (uint64_t &TrueVal, uint64_t &FalseVal) const |
| Retrieve the raw weight values of a conditional branch or select. More... | |
| bool | extractProfTotalWeight (uint64_t &TotalVal) const |
| Retrieve total raw weight values of a branch. More... | |
| void | updateProfWeight (uint64_t S, uint64_t T) |
Updates branch_weights metadata by scaling it by S / T. More... | |
| void | setProfWeight (uint64_t W) |
Sets the branch_weights metadata to W for CallInst. More... | |
| void | setDebugLoc (DebugLoc Loc) |
| Set the debug location information for this instruction. More... | |
| const DebugLoc & | getDebugLoc () const |
| Return the debug location for this node as a DebugLoc. More... | |
| void | setHasNoUnsignedWrap (bool b=true) |
| Set or clear the nuw flag on this instruction, which must be an operator which supports this flag. More... | |
| void | setHasNoSignedWrap (bool b=true) |
| Set or clear the nsw flag on this instruction, which must be an operator which supports this flag. More... | |
| void | setIsExact (bool b=true) |
| Set or clear the exact flag on this instruction, which must be an operator which supports this flag. More... | |
| bool | hasNoUnsignedWrap () const |
| Determine whether the no unsigned wrap flag is set. More... | |
| bool | hasNoSignedWrap () const |
| Determine whether the no signed wrap flag is set. More... | |
| void | dropPoisonGeneratingFlags () |
| Drops flags that may cause this instruction to evaluate to poison despite having non-poison inputs. More... | |
| bool | isExact () const |
| Determine whether the exact flag is set. More... | |
| void | setFast (bool B) |
| Set or clear all fast-math-flags on this instruction, which must be an operator which supports this flag. More... | |
| void | setHasAllowReassoc (bool B) |
| Set or clear the reassociation flag on this instruction, which must be an operator which supports this flag. More... | |
| void | setHasNoNaNs (bool B) |
| Set or clear the no-nans flag on this instruction, which must be an operator which supports this flag. More... | |
| void | setHasNoInfs (bool B) |
| Set or clear the no-infs flag on this instruction, which must be an operator which supports this flag. More... | |
| void | setHasNoSignedZeros (bool B) |
| Set or clear the no-signed-zeros flag on this instruction, which must be an operator which supports this flag. More... | |
| void | setHasAllowReciprocal (bool B) |
| Set or clear the allow-reciprocal flag on this instruction, which must be an operator which supports this flag. More... | |
| void | setHasApproxFunc (bool B) |
| Set or clear the approximate-math-functions flag on this instruction, which must be an operator which supports this flag. More... | |
| void | setFastMathFlags (FastMathFlags FMF) |
| Convenience function for setting multiple fast-math flags on this instruction, which must be an operator which supports these flags. More... | |
| void | copyFastMathFlags (FastMathFlags FMF) |
| Convenience function for transferring all fast-math flag values to this instruction, which must be an operator which supports these flags. More... | |
| bool | isFast () const |
| Determine whether all fast-math-flags are set. More... | |
| bool | hasAllowReassoc () const |
| Determine whether the allow-reassociation flag is set. More... | |
| bool | hasNoNaNs () const |
| Determine whether the no-NaNs flag is set. More... | |
| bool | hasNoInfs () const |
| Determine whether the no-infs flag is set. More... | |
| bool | hasNoSignedZeros () const |
| Determine whether the no-signed-zeros flag is set. More... | |
| bool | hasAllowReciprocal () const |
| Determine whether the allow-reciprocal flag is set. More... | |
| bool | hasAllowContract () const |
| Determine whether the allow-contract flag is set. More... | |
| bool | hasApproxFunc () const |
| Determine whether the approximate-math-functions flag is set. More... | |
| FastMathFlags | getFastMathFlags () const |
| Convenience function for getting all the fast-math flags, which must be an operator which supports these flags. More... | |
| void | copyFastMathFlags (const Instruction *I) |
| Copy I's fast-math flags. More... | |
| void | copyIRFlags (const Value *V, bool IncludeWrapFlags=true) |
| Convenience method to copy supported exact, fast-math, and (optionally) wrapping flags from V to this instruction. More... | |
| void | andIRFlags (const Value *V) |
| Logical 'and' of any supported wrapping, exact, and fast-math flags of V and this instruction. More... | |
| void | applyMergedLocation (const DILocation *LocA, const DILocation *LocB) |
| Merge 2 debug locations and apply it to the Instruction. More... | |
| bool | isAssociative () const LLVM_READONLY |
| Return true if the instruction is associative: More... | |
| bool | isCommutative () const |
| Return true if the instruction is commutative: More... | |
| bool | isIdempotent () const |
| Return true if the instruction is idempotent: More... | |
| bool | isNilpotent () const |
| Return true if the instruction is nilpotent: More... | |
| bool | mayWriteToMemory () const |
| Return true if this instruction may modify memory. More... | |
| bool | mayReadFromMemory () const |
| Return true if this instruction may read memory. More... | |
| bool | mayReadOrWriteMemory () const |
| Return true if this instruction may read or write memory. More... | |
| bool | isAtomic () const |
| Return true if this instruction has an AtomicOrdering of unordered or higher. More... | |
| bool | hasAtomicLoad () const |
| Return true if this atomic instruction loads from memory. More... | |
| bool | hasAtomicStore () const |
| Return true if this atomic instruction stores to memory. More... | |
| bool | mayThrow () const |
| Return true if this instruction may throw an exception. More... | |
| bool | isFenceLike () const |
| Return true if this instruction behaves like a memory fence: it can load or store to memory location without being given a memory location. More... | |
| bool | mayHaveSideEffects () const |
| Return true if the instruction may have side effects. More... | |
| bool | isSafeToRemove () const |
| Return true if the instruction can be removed if the result is unused. More... | |
| bool | isEHPad () const |
| Return true if the instruction is a variety of EH-block. More... | |
| bool | isLifetimeStartOrEnd () const |
| Return true if the instruction is a llvm.lifetime.start or llvm.lifetime.end marker. More... | |
| const Instruction * | getNextNonDebugInstruction () const |
| Return a pointer to the next non-debug instruction in the same basic block as 'this', or nullptr if no such instruction exists. More... | |
| Instruction * | getNextNonDebugInstruction () |
| const Instruction * | getPrevNonDebugInstruction () const |
| Return a pointer to the previous non-debug instruction in the same basic block as 'this', or nullptr if no such instruction exists. More... | |
| Instruction * | getPrevNonDebugInstruction () |
| Instruction * | clone () const |
| Create a copy of 'this' instruction that is identical in all ways except the following: More... | |
| bool | isIdenticalTo (const Instruction *I) const |
| Return true if the specified instruction is exactly identical to the current one. More... | |
| bool | isIdenticalToWhenDefined (const Instruction *I) const |
| This is like isIdenticalTo, except that it ignores the SubclassOptionalData flags, which may specify conditions under which the instruction's result is undefined. More... | |
| bool | isSameOperationAs (const Instruction *I, unsigned flags=0) const |
| This function determines if the specified instruction executes the same operation as the current one. More... | |
| bool | isUsedOutsideOfBlock (const BasicBlock *BB) const |
| Return true if there are any uses of this instruction in blocks other than the specified block. More... | |
| unsigned | getNumSuccessors () const |
| Return the number of successors that this instruction has. More... | |
| BasicBlock * | getSuccessor (unsigned Idx) const |
| Return the specified successor. This instruction must be a terminator. More... | |
| void | setSuccessor (unsigned Idx, BasicBlock *BB) |
| Update the specified successor to point at the provided block. More... | |
| void | dropUnknownNonDebugMetadata (ArrayRef< unsigned > KnownIDs) |
| Drop all unknown metadata except for debug locations. More... | |
| void | dropUnknownNonDebugMetadata () |
| void | dropUnknownNonDebugMetadata (unsigned ID1) |
| void | dropUnknownNonDebugMetadata (unsigned ID1, unsigned ID2) |
| Public Member Functions inherited from llvm::User | |
| User (const User &)=delete | |
| void | operator delete (void *Usr) |
| Free memory allocated for User and Use objects. More... | |
| void | operator delete (void *Usr, unsigned) |
| Placement delete - required by std, called if the ctor throws. More... | |
| void | operator delete (void *Usr, unsigned, bool) |
| Placement delete - required by std, called if the ctor throws. More... | |
| 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. 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 | |
| Value & | operator= (const Value &)=delete |
| void | deleteValue () |
| Delete a pointer to a generic Value. More... | |
| 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 | 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 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... | |
| const Value * | stripPointerCasts () const |
| Strip off pointer casts, all-zero GEPs, and aliases. More... | |
| Value * | stripPointerCasts () |
| const Value * | stripPointerCastsAndInvariantGroups () const |
| Strip off pointer casts, all-zero GEPs, aliases and invariant group info. More... | |
| Value * | stripPointerCastsAndInvariantGroups () |
| const Value * | stripPointerCastsNoFollowAliases () const |
| Strip off pointer casts and all-zero GEPs. More... | |
| Value * | stripPointerCastsNoFollowAliases () |
| const Value * | stripInBoundsConstantOffsets () const |
| Strip off pointer casts and all-constant inbounds GEPs. More... | |
| Value * | stripInBoundsConstantOffsets () |
| const Value * | stripAndAccumulateInBoundsConstantOffsets (const DataLayout &DL, APInt &Offset) const |
| Accumulate offsets from stripInBoundsConstantOffsets(). More... | |
| Value * | stripAndAccumulateInBoundsConstantOffsets (const DataLayout &DL, APInt &Offset) |
| const Value * | stripInBoundsOffsets () const |
| Strip off pointer casts and inbounds GEPs. More... | |
| Value * | stripInBoundsOffsets () |
| uint64_t | 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... | |
| const Value * | DoPHITranslation (const BasicBlock *CurBB, const BasicBlock *PredBB) const |
| Translate PHI node to its predecessor from the given basic block. More... | |
| Value * | DoPHITranslation (const BasicBlock *CurBB, const BasicBlock *PredBB) |
| 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 |
| Public Member Functions inherited from llvm::ilist_node_with_parent< Instruction, BasicBlock > | |
| Instruction * | getPrevNode () |
| const Instruction * | getPrevNode () const |
Get the previous node, or nullptr for the list head. More... | |
| Instruction * | getNextNode () |
Get the next node, or nullptr for the list tail. More... | |
| const Instruction * | getNextNode () const |
Get the next node, or nullptr for the list tail. More... | |
| Public Member Functions inherited from llvm::ilist_node_impl< ilist_detail::compute_node_options< Instruction, Options... >::type > | |
| self_iterator | getIterator () |
| const_self_iterator | getIterator () const |
| reverse_self_iterator | getReverseIterator () |
| const_reverse_self_iterator | getReverseIterator () const |
| bool | isSentinel () const |
| Check whether this is the sentinel node. More... | |
Static Public Member Functions | |
| static bool | classof (const Instruction *I) |
| Methods for support type inquiry through isa, cast, and dyn_cast: More... | |
| static bool | classof (const Value *V) |
| Static Public Member Functions inherited from llvm::CastInst | |
| static CastInst * | Create (Instruction::CastOps, Value *S, Type *Ty, const Twine &Name="", Instruction *InsertBefore=nullptr) |
| Provides a way to construct any of the CastInst subclasses using an opcode instead of the subclass's constructor. More... | |
| static CastInst * | Create (Instruction::CastOps, Value *S, Type *Ty, const Twine &Name, BasicBlock *InsertAtEnd) |
| Provides a way to construct any of the CastInst subclasses using an opcode instead of the subclass's constructor. More... | |
| static CastInst * | CreateZExtOrBitCast (Value *S, Type *Ty, const Twine &Name="", Instruction *InsertBefore=nullptr) |
| Create a ZExt or BitCast cast instruction. More... | |
| static CastInst * | CreateZExtOrBitCast (Value *S, Type *Ty, const Twine &Name, BasicBlock *InsertAtEnd) |
| Create a ZExt or BitCast cast instruction. More... | |
| static CastInst * | CreateSExtOrBitCast (Value *S, Type *Ty, const Twine &Name="", Instruction *InsertBefore=nullptr) |
| Create a SExt or BitCast cast instruction. More... | |
| static CastInst * | CreateSExtOrBitCast (Value *S, Type *Ty, const Twine &Name, BasicBlock *InsertAtEnd) |
| Create a SExt or BitCast cast instruction. More... | |
| static CastInst * | CreatePointerCast (Value *S, Type *Ty, const Twine &Name, BasicBlock *InsertAtEnd) |
| Create a BitCast AddrSpaceCast, or a PtrToInt cast instruction. More... | |
| static CastInst * | CreatePointerCast (Value *S, Type *Ty, const Twine &Name="", Instruction *InsertBefore=nullptr) |
| Create a BitCast, AddrSpaceCast or a PtrToInt cast instruction. More... | |
| static CastInst * | CreatePointerBitCastOrAddrSpaceCast (Value *S, Type *Ty, const Twine &Name, BasicBlock *InsertAtEnd) |
| Create a BitCast or an AddrSpaceCast cast instruction. More... | |
| static CastInst * | CreatePointerBitCastOrAddrSpaceCast (Value *S, Type *Ty, const Twine &Name="", Instruction *InsertBefore=nullptr) |
| Create a BitCast or an AddrSpaceCast cast instruction. More... | |
| static CastInst * | CreateBitOrPointerCast (Value *S, Type *Ty, const Twine &Name="", Instruction *InsertBefore=nullptr) |
| Create a BitCast, a PtrToInt, or an IntToPTr cast instruction. More... | |
| static CastInst * | CreateIntegerCast (Value *S, Type *Ty, bool isSigned, const Twine &Name="", Instruction *InsertBefore=nullptr) |
| Create a ZExt, BitCast, or Trunc for int -> int casts. More... | |
| static CastInst * | CreateIntegerCast (Value *S, Type *Ty, bool isSigned, const Twine &Name, BasicBlock *InsertAtEnd) |
| Create a ZExt, BitCast, or Trunc for int -> int casts. More... | |
| static CastInst * | CreateFPCast (Value *S, Type *Ty, const Twine &Name="", Instruction *InsertBefore=nullptr) |
| Create an FPExt, BitCast, or FPTrunc for fp -> fp casts. More... | |
| static CastInst * | CreateFPCast (Value *S, Type *Ty, const Twine &Name, BasicBlock *InsertAtEnd) |
| Create an FPExt, BitCast, or FPTrunc for fp -> fp casts. More... | |
| static CastInst * | CreateTruncOrBitCast (Value *S, Type *Ty, const Twine &Name="", Instruction *InsertBefore=nullptr) |
| Create a Trunc or BitCast cast instruction. More... | |
| static CastInst * | CreateTruncOrBitCast (Value *S, Type *Ty, const Twine &Name, BasicBlock *InsertAtEnd) |
| Create a Trunc or BitCast cast instruction. More... | |
| static bool | isCastable (Type *SrcTy, Type *DestTy) |
| Check whether it is valid to call getCastOpcode for these types. More... | |
| static bool | isBitCastable (Type *SrcTy, Type *DestTy) |
| Check whether a bitcast between these types is valid. More... | |
| static bool | isBitOrNoopPointerCastable (Type *SrcTy, Type *DestTy, const DataLayout &DL) |
| Check whether a bitcast, inttoptr, or ptrtoint cast between these types is valid and a no-op. More... | |
| static Instruction::CastOps | getCastOpcode (const Value *Val, bool SrcIsSigned, Type *Ty, bool DstIsSigned) |
| Returns the opcode necessary to cast Val into Ty using usual casting rules. More... | |
| static bool | isNoopCast (Instruction::CastOps Opcode, Type *SrcTy, Type *DstTy, const DataLayout &DL) |
| A no-op cast is one that can be effected without changing any bits. More... | |
| static unsigned | isEliminableCastPair (Instruction::CastOps firstOpcode, Instruction::CastOps secondOpcode, Type *SrcTy, Type *MidTy, Type *DstTy, Type *SrcIntPtrTy, Type *MidIntPtrTy, Type *DstIntPtrTy) |
| Determine how a pair of casts can be eliminated, if they can be at all. More... | |
| static bool | castIsValid (Instruction::CastOps op, Value *S, Type *DstTy) |
| This method can be used to determine if a cast from S to DstTy using Opcode op is valid or not. More... | |
| static bool | classof (const Instruction *I) |
| Methods for support type inquiry through isa, cast, and dyn_cast: More... | |
| static bool | classof (const Value *V) |
| Static Public Member Functions inherited from llvm::UnaryInstruction | |
| static bool | classof (const Instruction *I) |
| static bool | classof (const Value *V) |
| Static Public Member Functions inherited from llvm::Instruction | |
| static const char * | getOpcodeName (unsigned OpCode) |
| static bool | isTerminator (unsigned OpCode) |
| static bool | isUnaryOp (unsigned Opcode) |
| static bool | isBinaryOp (unsigned Opcode) |
| static bool | isIntDivRem (unsigned Opcode) |
| static bool | isShift (unsigned Opcode) |
| Determine if the Opcode is one of the shift instructions. More... | |
| static bool | isBitwiseLogicOp (unsigned Opcode) |
| Determine if the Opcode is and/or/xor. More... | |
| static bool | isCast (unsigned OpCode) |
| Determine if the OpCode is one of the CastInst instructions. More... | |
| static bool | isFuncletPad (unsigned OpCode) |
| Determine if the OpCode is one of the FuncletPadInst instructions. More... | |
| static bool | isExceptionalTerminator (unsigned OpCode) |
| Returns true if the OpCode is a terminator related to exception handling. More... | |
| static bool | isAssociative (unsigned Opcode) |
| static bool | isCommutative (unsigned Opcode) |
| static bool | isIdempotent (unsigned Opcode) |
| static bool | isNilpotent (unsigned Opcode) |
| 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::User | |
| static bool | classof (const Value *V) |
Protected Member Functions | |
| FPTruncInst * | cloneImpl () const |
| Clone an identical FPTruncInst. More... | |
| Protected Member Functions inherited from llvm::CastInst | |
| CastInst (Type *Ty, unsigned iType, Value *S, const Twine &NameStr="", Instruction *InsertBefore=nullptr) | |
| Constructor with insert-before-instruction semantics for subclasses. More... | |
| CastInst (Type *Ty, unsigned iType, Value *S, const Twine &NameStr, BasicBlock *InsertAtEnd) | |
| Constructor with insert-at-end-of-block semantics for subclasses. More... | |
| Protected Member Functions inherited from llvm::UnaryInstruction | |
| UnaryInstruction (Type *Ty, unsigned iType, Value *V, Instruction *IB=nullptr) | |
| UnaryInstruction (Type *Ty, unsigned iType, Value *V, BasicBlock *IAE) | |
| Protected Member Functions inherited from llvm::Instruction | |
| ~Instruction () | |
| void | setInstructionSubclassData (unsigned short D) |
| unsigned | getSubclassDataFromInstruction () const |
| Instruction (Type *Ty, unsigned iType, Use *Ops, unsigned NumOps, Instruction *InsertBefore=nullptr) | |
| Instruction (Type *Ty, unsigned iType, Use *Ops, unsigned NumOps, BasicBlock *InsertAtEnd) | |
| 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... | |
| ~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. More... | |
| unsigned short | getSubclassDataFromValue () const |
| void | setValueSubclassData (unsigned short D) |
| Protected Member Functions inherited from llvm::ilist_node_with_parent< Instruction, BasicBlock > | |
| ilist_node_with_parent ()=default | |
| Protected Member Functions inherited from llvm::ilist_node_impl< ilist_detail::compute_node_options< Instruction, Options... >::type > | |
| ilist_node_impl ()=default | |
Friends | |
| class | Instruction |
Detailed Description
This class represents a truncation of floating point types.
Definition at line 4528 of file Instructions.h.
Constructor & Destructor Documentation
◆ FPTruncInst() [1/2]
| FPTruncInst::FPTruncInst | ( | Value * | S, |
| Type * | Ty, | ||
| const Twine & | NameStr = "", |
||
| Instruction * | InsertBefore = nullptr |
||
| ) |
Constructor with insert-before-instruction semantics.
- Parameters
-
S The value to be truncated Ty The type to truncate to NameStr A name for the new instruction InsertBefore Where to insert the new instruction
Definition at line 3163 of file Instructions.cpp.
References assert(), llvm::CastInst::castIsValid(), and llvm::CastInst::getOpcode().
◆ FPTruncInst() [2/2]
| FPTruncInst::FPTruncInst | ( | Value * | S, |
| Type * | Ty, | ||
| const Twine & | NameStr, | ||
| BasicBlock * | InsertAtEnd | ||
| ) |
Constructor with insert-before-instruction semantics.
- Parameters
-
S The value to be truncated Ty The type to truncate to NameStr A name for the new instruction InsertAtEnd The block to insert the instruction into
Definition at line 3169 of file Instructions.cpp.
References assert(), llvm::CastInst::castIsValid(), and llvm::CastInst::getOpcode().
Member Function Documentation
◆ classof() [1/2]
|
inlinestatic |
Methods for support type inquiry through isa, cast, and dyn_cast:
Definition at line 4554 of file Instructions.h.
References llvm::Instruction::getOpcode().
◆ classof() [2/2]
Definition at line 4557 of file Instructions.h.
References llvm::AllocaInst::classof().
◆ cloneImpl()
|
protected |
Clone an identical FPTruncInst.
Definition at line 3885 of file Instructions.cpp.
References llvm::User::getOperand(), and llvm::Value::getType().
Friends And Related Function Documentation
◆ Instruction
|
friend |
Definition at line 4531 of file Instructions.h.
The documentation for this class was generated from the following files:
- include/llvm/IR/Instructions.h
- lib/IR/Instructions.cpp
