LLVM 20.0.0git
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This instruction constructs a fixed permutation of two input vectors. More...
#include "llvm/IR/Instructions.h"
Public Member Functions | |
ShuffleVectorInst (Value *V1, Value *Mask, const Twine &NameStr="", InsertPosition InsertBefore=nullptr) | |
ShuffleVectorInst (Value *V1, ArrayRef< int > Mask, const Twine &NameStr="", InsertPosition InsertBefore=nullptr) | |
ShuffleVectorInst (Value *V1, Value *V2, Value *Mask, const Twine &NameStr="", InsertPosition InsertBefore=nullptr) | |
ShuffleVectorInst (Value *V1, Value *V2, ArrayRef< int > Mask, const Twine &NameStr="", InsertPosition InsertBefore=nullptr) | |
void * | operator new (size_t S) |
void | operator delete (void *Ptr) |
void | commute () |
Swap the operands and adjust the mask to preserve the semantics of the instruction. | |
VectorType * | getType () const |
Overload to return most specific vector type. | |
DECLARE_TRANSPARENT_OPERAND_ACCESSORS (Value) | |
Transparently provide more efficient getOperand methods. | |
int | getMaskValue (unsigned Elt) const |
Return the shuffle mask value of this instruction for the given element index. | |
void | getShuffleMask (SmallVectorImpl< int > &Result) const |
Return the mask for this instruction as a vector of integers. | |
Constant * | getShuffleMaskForBitcode () const |
Return the mask for this instruction, for use in bitcode. | |
void | setShuffleMask (ArrayRef< int > Mask) |
ArrayRef< int > | getShuffleMask () const |
bool | changesLength () const |
Return true if this shuffle returns a vector with a different number of elements than its source vectors. | |
bool | increasesLength () const |
Return true if this shuffle returns a vector with a greater number of elements than its source vectors. | |
bool | isSingleSource () const |
Return true if this shuffle chooses elements from exactly one source vector without changing the length of that vector. | |
bool | isIdentity () const |
Return true if this shuffle chooses elements from exactly one source vector without lane crossings and does not change the number of elements from its input vectors. | |
bool | isIdentityWithPadding () const |
Return true if this shuffle lengthens exactly one source vector with undefs in the high elements. | |
bool | isIdentityWithExtract () const |
Return true if this shuffle extracts the first N elements of exactly one source vector. | |
bool | isConcat () const |
Return true if this shuffle concatenates its 2 source vectors. | |
bool | isSelect () const |
Return true if this shuffle chooses elements from its source vectors without lane crossings and all operands have the same number of elements. | |
bool | isReverse () const |
Return true if this shuffle swaps the order of elements from exactly one source vector. | |
bool | isZeroEltSplat () const |
Return true if all elements of this shuffle are the same value as the first element of exactly one source vector without changing the length of that vector. | |
bool | isTranspose () const |
Return true if this shuffle transposes the elements of its inputs without changing the length of the vectors. | |
bool | isSplice (int &Index) const |
Return true if this shuffle splices two inputs without changing the length of the vectors. | |
bool | isExtractSubvectorMask (int &Index) const |
Return true if this shuffle mask is an extract subvector mask. | |
bool | isInsertSubvectorMask (int &NumSubElts, int &Index) const |
Return true if this shuffle mask is an insert subvector mask. | |
bool | isReplicationMask (int &ReplicationFactor, int &VF) const |
Return true if this shuffle mask is a replication mask. | |
bool | isOneUseSingleSourceMask (int VF) const |
Return true if this shuffle mask is a one-use-single-source("clustered") mask. | |
bool | isInterleave (unsigned Factor) |
Return if this shuffle interleaves its two input vectors together. | |
Public Member Functions inherited from llvm::Instruction | |
iterator_range< simple_ilist< DbgRecord >::iterator > | cloneDebugInfoFrom (const Instruction *From, std::optional< simple_ilist< DbgRecord >::iterator > FromHere=std::nullopt, bool InsertAtHead=false) |
Clone any debug-info attached to From onto this instruction. | |
iterator_range< simple_ilist< DbgRecord >::iterator > | getDbgRecordRange () const |
Return a range over the DbgRecords attached to this instruction. | |
std::optional< simple_ilist< DbgRecord >::iterator > | getDbgReinsertionPosition () |
Return an iterator to the position of the "Next" DbgRecord after this instruction, or std::nullopt. | |
bool | hasDbgRecords () const |
Returns true if any DbgRecords are attached to this instruction. | |
void | adoptDbgRecords (BasicBlock *BB, InstListType::iterator It, bool InsertAtHead) |
Transfer any DbgRecords on the position It onto this instruction, by simply adopting the sequence of DbgRecords (which is efficient) if possible, by merging two sequences otherwise. | |
void | dropDbgRecords () |
Erase any DbgRecords attached to this instruction. | |
void | dropOneDbgRecord (DbgRecord *I) |
Erase a single DbgRecord I that is attached to this instruction. | |
void | handleMarkerRemoval () |
Handle the debug-info implications of this instruction being removed. | |
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. | |
const Instruction * | user_back () const |
const Module * | getModule () const |
Return the module owning the function this instruction belongs to or nullptr it the function does not have a module. | |
Module * | getModule () |
const Function * | getFunction () const |
Return the function this instruction belongs to. | |
Function * | getFunction () |
const DataLayout & | getDataLayout () const |
Get the data layout of the module this instruction belongs to. | |
void | removeFromParent () |
This method unlinks 'this' from the containing basic block, but does not delete it. | |
InstListType::iterator | eraseFromParent () |
This method unlinks 'this' from the containing basic block and deletes it. | |
void | insertBefore (Instruction *InsertPos) |
Insert an unlinked instruction into a basic block immediately before the specified instruction. | |
void | insertBefore (InstListType::iterator InsertPos) |
Insert an unlinked instruction into a basic block immediately before the specified instruction. | |
void | insertAfter (Instruction *InsertPos) |
Insert an unlinked instruction into a basic block immediately after the specified instruction. | |
InstListType::iterator | insertInto (BasicBlock *ParentBB, InstListType::iterator It) |
Inserts an unlinked instruction into ParentBB at position It and returns the iterator of the inserted instruction. | |
void | insertBefore (BasicBlock &BB, InstListType::iterator InsertPos) |
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. | |
void | moveBeforePreserving (Instruction *MovePos) |
Perform a moveBefore operation, while signalling that the caller intends to preserve the original ordering of instructions. | |
void | moveBefore (BasicBlock &BB, InstListType::iterator I) |
Unlink this instruction and insert into BB before I. | |
void | moveBeforePreserving (BasicBlock &BB, InstListType::iterator I) |
(See other overload for moveBeforePreserving). | |
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. | |
void | moveAfterPreserving (Instruction *MovePos) |
See moveBeforePreserving . | |
bool | comesBefore (const Instruction *Other) const |
Given an instruction Other in the same basic block as this instruction, return true if this instruction comes before Other. | |
std::optional< InstListType::iterator > | getInsertionPointAfterDef () |
Get the first insertion point at which the result of this instruction is defined. | |
unsigned | getOpcode () const |
Returns a member of one of the enums like Instruction::Add. | |
const char * | getOpcodeName () const |
bool | isTerminator () const |
bool | isUnaryOp () const |
bool | isBinaryOp () const |
bool | isIntDivRem () const |
bool | isShift () const |
bool | isCast () const |
bool | isFuncletPad () const |
bool | isSpecialTerminator () const |
bool | isOnlyUserOfAnyOperand () |
It checks if this instruction is the only user of at least one of its operands. | |
bool | isLogicalShift () const |
Return true if this is a logical shift left or a logical shift right. | |
bool | isArithmeticShift () const |
Return true if this is an arithmetic shift right. | |
bool | isBitwiseLogicOp () const |
Return true if this is and/or/xor. | |
bool | hasMetadata () const |
Return true if this instruction has any metadata attached to it. | |
bool | hasMetadataOtherThanDebugLoc () const |
Return true if this instruction has metadata attached to it other than a debug location. | |
bool | hasMetadata (unsigned KindID) const |
Return true if this instruction has the given type of metadata attached. | |
bool | hasMetadata (StringRef Kind) const |
Return true if this instruction has the given type of metadata attached. | |
MDNode * | getMetadata (unsigned KindID) const |
Get the metadata of given kind attached to this Instruction. | |
MDNode * | getMetadata (StringRef Kind) const |
Get the metadata of given kind attached to this Instruction. | |
void | getAllMetadata (SmallVectorImpl< std::pair< unsigned, MDNode * > > &MDs) const |
Get all metadata attached to this Instruction. | |
void | getAllMetadataOtherThanDebugLoc (SmallVectorImpl< std::pair< unsigned, MDNode * > > &MDs) const |
This does the same thing as getAllMetadata, except that it filters out the debug location. | |
void | setMetadata (unsigned KindID, MDNode *Node) |
Set the metadata of the specified kind to the specified node. | |
void | setMetadata (StringRef Kind, MDNode *Node) |
void | copyMetadata (const Instruction &SrcInst, ArrayRef< unsigned > WL=ArrayRef< unsigned >()) |
Copy metadata from SrcInst to this instruction. | |
void | eraseMetadataIf (function_ref< bool(unsigned, MDNode *)> Pred) |
Erase all metadata that matches the predicate. | |
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. | |
void | addAnnotationMetadata (StringRef Annotation) |
Adds an !annotation metadata node with Annotation to this instruction. | |
void | addAnnotationMetadata (SmallVector< StringRef > Annotations) |
Adds an !annotation metadata node with an array of Annotations as a tuple to this instruction. | |
AAMDNodes | getAAMetadata () const |
Returns the AA metadata for this instruction. | |
void | setAAMetadata (const AAMDNodes &N) |
Sets the AA metadata on this instruction from the AAMDNodes structure. | |
void | setNoSanitizeMetadata () |
Sets the nosanitize metadata on this instruction. | |
bool | extractProfTotalWeight (uint64_t &TotalVal) const |
Retrieve total raw weight values of a branch. | |
void | setDebugLoc (DebugLoc Loc) |
Set the debug location information for this instruction. | |
const DebugLoc & | getDebugLoc () const |
Return the debug location for this node as a DebugLoc. | |
const DebugLoc & | getStableDebugLoc () const |
Fetch the debug location for this node, unless this is a debug intrinsic, in which case fetch the debug location of the next non-debug node. | |
void | setHasNoUnsignedWrap (bool b=true) |
Set or clear the nuw flag on this instruction, which must be an operator which supports this flag. | |
void | setHasNoSignedWrap (bool b=true) |
Set or clear the nsw flag on this instruction, which must be an operator which supports this flag. | |
void | setIsExact (bool b=true) |
Set or clear the exact flag on this instruction, which must be an operator which supports this flag. | |
void | setNonNeg (bool b=true) |
Set or clear the nneg flag on this instruction, which must be a zext instruction. | |
bool | hasNoUnsignedWrap () const LLVM_READONLY |
Determine whether the no unsigned wrap flag is set. | |
bool | hasNoSignedWrap () const LLVM_READONLY |
Determine whether the no signed wrap flag is set. | |
bool | hasNonNeg () const LLVM_READONLY |
Determine whether the the nneg flag is set. | |
bool | hasPoisonGeneratingFlags () const LLVM_READONLY |
Return true if this operator has flags which may cause this instruction to evaluate to poison despite having non-poison inputs. | |
void | dropPoisonGeneratingFlags () |
Drops flags that may cause this instruction to evaluate to poison despite having non-poison inputs. | |
bool | hasPoisonGeneratingMetadata () const LLVM_READONLY |
Return true if this instruction has poison-generating metadata. | |
void | dropPoisonGeneratingMetadata () |
Drops metadata that may generate poison. | |
bool | hasPoisonGeneratingReturnAttributes () const LLVM_READONLY |
Return true if this instruction has poison-generating attribute. | |
void | dropPoisonGeneratingReturnAttributes () |
Drops return attributes that may generate poison. | |
bool | hasPoisonGeneratingAnnotations () const |
Return true if this instruction has poison-generating flags, return attributes or metadata. | |
void | dropPoisonGeneratingAnnotations () |
Drops flags, return attributes and metadata that may generate poison. | |
void | dropUBImplyingAttrsAndUnknownMetadata (ArrayRef< unsigned > KnownIDs={}) |
This function drops non-debug unknown metadata (through dropUnknownNonDebugMetadata). | |
void | dropUBImplyingAttrsAndMetadata () |
Drop any attributes or metadata that can cause immediate undefined behavior. | |
bool | isExact () const LLVM_READONLY |
Determine whether the exact flag is set. | |
void | setFast (bool B) |
Set or clear all fast-math-flags on this instruction, which must be an operator which supports this flag. | |
void | setHasAllowReassoc (bool B) |
Set or clear the reassociation flag on this instruction, which must be an operator which supports this flag. | |
void | setHasNoNaNs (bool B) |
Set or clear the no-nans flag on this instruction, which must be an operator which supports this flag. | |
void | setHasNoInfs (bool B) |
Set or clear the no-infs flag on this instruction, which must be an operator which supports this flag. | |
void | setHasNoSignedZeros (bool B) |
Set or clear the no-signed-zeros flag on this instruction, which must be an operator which supports this flag. | |
void | setHasAllowReciprocal (bool B) |
Set or clear the allow-reciprocal flag on this instruction, which must be an operator which supports this flag. | |
void | setHasAllowContract (bool B) |
Set or clear the allow-contract flag on this instruction, which must be an operator which supports this flag. | |
void | setHasApproxFunc (bool B) |
Set or clear the approximate-math-functions flag on this instruction, which must be an operator which supports this flag. | |
void | setFastMathFlags (FastMathFlags FMF) |
Convenience function for setting multiple fast-math flags on this instruction, which must be an operator which supports these flags. | |
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. | |
bool | isFast () const LLVM_READONLY |
Determine whether all fast-math-flags are set. | |
bool | hasAllowReassoc () const LLVM_READONLY |
Determine whether the allow-reassociation flag is set. | |
bool | hasNoNaNs () const LLVM_READONLY |
Determine whether the no-NaNs flag is set. | |
bool | hasNoInfs () const LLVM_READONLY |
Determine whether the no-infs flag is set. | |
bool | hasNoSignedZeros () const LLVM_READONLY |
Determine whether the no-signed-zeros flag is set. | |
bool | hasAllowReciprocal () const LLVM_READONLY |
Determine whether the allow-reciprocal flag is set. | |
bool | hasAllowContract () const LLVM_READONLY |
Determine whether the allow-contract flag is set. | |
bool | hasApproxFunc () const LLVM_READONLY |
Determine whether the approximate-math-functions flag is set. | |
FastMathFlags | getFastMathFlags () const LLVM_READONLY |
Convenience function for getting all the fast-math flags, which must be an operator which supports these flags. | |
void | copyFastMathFlags (const Instruction *I) |
Copy I's fast-math flags. | |
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. | |
void | andIRFlags (const Value *V) |
Logical 'and' of any supported wrapping, exact, and fast-math flags of V and this instruction. | |
void | applyMergedLocation (DILocation *LocA, DILocation *LocB) |
Merge 2 debug locations and apply it to the Instruction. | |
void | updateLocationAfterHoist () |
Updates the debug location given that the instruction has been hoisted from a block to a predecessor of that block. | |
void | dropLocation () |
Drop the instruction's debug location. | |
void | mergeDIAssignID (ArrayRef< const Instruction * > SourceInstructions) |
Merge the DIAssignID metadata from this instruction and those attached to instructions in SourceInstructions . | |
bool | isAssociative () const LLVM_READONLY |
Return true if the instruction is associative: | |
bool | isCommutative () const LLVM_READONLY |
Return true if the instruction is commutative: | |
bool | isIdempotent () const |
Return true if the instruction is idempotent: | |
bool | isNilpotent () const |
Return true if the instruction is nilpotent: | |
bool | mayWriteToMemory () const LLVM_READONLY |
Return true if this instruction may modify memory. | |
bool | mayReadFromMemory () const LLVM_READONLY |
Return true if this instruction may read memory. | |
bool | mayReadOrWriteMemory () const |
Return true if this instruction may read or write memory. | |
bool | isAtomic () const LLVM_READONLY |
Return true if this instruction has an AtomicOrdering of unordered or higher. | |
bool | hasAtomicLoad () const LLVM_READONLY |
Return true if this atomic instruction loads from memory. | |
bool | hasAtomicStore () const LLVM_READONLY |
Return true if this atomic instruction stores to memory. | |
bool | isVolatile () const LLVM_READONLY |
Return true if this instruction has a volatile memory access. | |
Type * | getAccessType () const LLVM_READONLY |
Return the type this instruction accesses in memory, if any. | |
bool | mayThrow (bool IncludePhaseOneUnwind=false) const LLVM_READONLY |
Return true if this instruction may throw an exception. | |
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. | |
bool | mayHaveSideEffects () const LLVM_READONLY |
Return true if the instruction may have side effects. | |
bool | isSafeToRemove () const LLVM_READONLY |
Return true if the instruction can be removed if the result is unused. | |
bool | willReturn () const LLVM_READONLY |
Return true if the instruction will return (unwinding is considered as a form of returning control flow here). | |
bool | isEHPad () const |
Return true if the instruction is a variety of EH-block. | |
bool | isLifetimeStartOrEnd () const LLVM_READONLY |
Return true if the instruction is a llvm.lifetime.start or llvm.lifetime.end marker. | |
bool | isLaunderOrStripInvariantGroup () const LLVM_READONLY |
Return true if the instruction is a llvm.launder.invariant.group or llvm.strip.invariant.group. | |
bool | isDebugOrPseudoInst () const LLVM_READONLY |
Return true if the instruction is a DbgInfoIntrinsic or PseudoProbeInst. | |
const Instruction * | getNextNonDebugInstruction (bool SkipPseudoOp=false) const |
Return a pointer to the next non-debug instruction in the same basic block as 'this', or nullptr if no such instruction exists. | |
Instruction * | getNextNonDebugInstruction (bool SkipPseudoOp=false) |
const Instruction * | getPrevNonDebugInstruction (bool SkipPseudoOp=false) const |
Return a pointer to the previous non-debug instruction in the same basic block as 'this', or nullptr if no such instruction exists. | |
Instruction * | getPrevNonDebugInstruction (bool SkipPseudoOp=false) |
Instruction * | clone () const |
Create a copy of 'this' instruction that is identical in all ways except the following: | |
bool | isIdenticalTo (const Instruction *I) const LLVM_READONLY |
Return true if the specified instruction is exactly identical to the current one. | |
bool | isIdenticalToWhenDefined (const Instruction *I) const LLVM_READONLY |
This is like isIdenticalTo, except that it ignores the SubclassOptionalData flags, which may specify conditions under which the instruction's result is undefined. | |
bool | isSameOperationAs (const Instruction *I, unsigned flags=0) const LLVM_READONLY |
This function determines if the specified instruction executes the same operation as the current one. | |
bool | hasSameSpecialState (const Instruction *I2, bool IgnoreAlignment=false) const LLVM_READONLY |
This function determines if the speficied instruction has the same "special" characteristics as the current one. | |
bool | isUsedOutsideOfBlock (const BasicBlock *BB) const LLVM_READONLY |
Return true if there are any uses of this instruction in blocks other than the specified block. | |
unsigned | getNumSuccessors () const LLVM_READONLY |
Return the number of successors that this instruction has. | |
BasicBlock * | getSuccessor (unsigned Idx) const LLVM_READONLY |
Return the specified successor. This instruction must be a terminator. | |
void | setSuccessor (unsigned Idx, BasicBlock *BB) |
Update the specified successor to point at the provided block. | |
void | replaceSuccessorWith (BasicBlock *OldBB, BasicBlock *NewBB) |
Replace specified successor OldBB to point at the provided block. | |
void | dropUnknownNonDebugMetadata (ArrayRef< unsigned > KnownIDs=std::nullopt) |
Drop all unknown metadata except for debug locations. | |
Public Member Functions inherited from llvm::User | |
User (const User &)=delete | |
void | operator delete (void *Usr) |
Free memory allocated for User and Use objects. | |
void | operator delete (void *Usr, unsigned) |
Placement delete - required by std, called if the ctor throws. | |
void | operator delete (void *Usr, unsigned, unsigned) |
Placement delete - required by std, called if the ctor throws. | |
const Use * | getOperandList () const |
Use * | getOperandList () |
Value * | getOperand (unsigned i) const |
void | setOperand (unsigned i, Value *Val) |
const Use & | getOperandUse (unsigned i) const |
Use & | getOperandUse (unsigned i) |
unsigned | getNumOperands () const |
ArrayRef< const uint8_t > | getDescriptor () const |
Returns the descriptor co-allocated with this User instance. | |
MutableArrayRef< uint8_t > | getDescriptor () |
Returns the descriptor co-allocated with this User instance. | |
void | setGlobalVariableNumOperands (unsigned NumOps) |
Set the number of operands on a GlobalVariable. | |
void | setNumHungOffUseOperands (unsigned NumOps) |
Subclasses with hung off uses need to manage the operand count themselves. | |
bool | isDroppable () const |
A droppable user is a user for which uses can be dropped without affecting correctness and should be dropped rather than preventing a transformation from happening. | |
op_iterator | op_begin () |
const_op_iterator | op_begin () const |
op_iterator | op_end () |
const_op_iterator | op_end () const |
op_range | operands () |
const_op_range | operands () const |
value_op_iterator | value_op_begin () |
value_op_iterator | value_op_end () |
iterator_range< value_op_iterator > | operand_values () |
const_value_op_iterator | value_op_begin () const |
const_value_op_iterator | value_op_end () const |
iterator_range< const_value_op_iterator > | operand_values () const |
void | dropAllReferences () |
Drop all references to operands. | |
bool | replaceUsesOfWith (Value *From, Value *To) |
Replace uses of one Value with another. | |
Public Member Functions inherited from llvm::Value | |
Value (const Value &)=delete | |
Value & | operator= (const Value &)=delete |
void | deleteValue () |
Delete a pointer to a generic Value. | |
void | dump () const |
Support for debugging, callable in GDB: V->dump() | |
Type * | getType () const |
All values are typed, get the type of this value. | |
LLVMContext & | getContext () const |
All values hold a context through their type. | |
bool | hasName () const |
ValueName * | getValueName () const |
void | setValueName (ValueName *VN) |
StringRef | getName () const |
Return a constant reference to the value's name. | |
void | setName (const Twine &Name) |
Change the name of the value. | |
void | takeName (Value *V) |
Transfer the name from V to this value. | |
std::string | getNameOrAsOperand () const |
void | replaceAllUsesWith (Value *V) |
Change all uses of this to point to a new Value. | |
void | replaceNonMetadataUsesWith (Value *V) |
Change non-metadata uses of this to point to a new Value. | |
void | replaceUsesWithIf (Value *New, llvm::function_ref< bool(Use &U)> ShouldReplace) |
Go through the uses list for this definition and make each use point to "V" if the callback ShouldReplace returns true for the given Use. | |
void | replaceUsesOutsideBlock (Value *V, BasicBlock *BB) |
replaceUsesOutsideBlock - Go through the uses list for this definition and make each use point to "V" instead of "this" when the use is outside the block. | |
void | assertModuleIsMaterializedImpl () const |
void | assertModuleIsMaterialized () const |
bool | use_empty () const |
bool | materialized_use_empty () const |
use_iterator | materialized_use_begin () |
const_use_iterator | materialized_use_begin () const |
use_iterator | use_begin () |
const_use_iterator | use_begin () const |
use_iterator | use_end () |
const_use_iterator | use_end () const |
iterator_range< use_iterator > | materialized_uses () |
iterator_range< const_use_iterator > | materialized_uses () const |
iterator_range< use_iterator > | uses () |
iterator_range< const_use_iterator > | uses () const |
bool | user_empty () const |
user_iterator | materialized_user_begin () |
const_user_iterator | materialized_user_begin () const |
user_iterator | user_begin () |
const_user_iterator | user_begin () const |
user_iterator | user_end () |
const_user_iterator | user_end () const |
User * | user_back () |
const User * | user_back () const |
iterator_range< user_iterator > | materialized_users () |
iterator_range< const_user_iterator > | materialized_users () const |
iterator_range< user_iterator > | users () |
iterator_range< const_user_iterator > | users () const |
bool | hasOneUse () const |
Return true if there is exactly one use of this value. | |
bool | hasNUses (unsigned N) const |
Return true if this Value has exactly N uses. | |
bool | hasNUsesOrMore (unsigned N) const |
Return true if this value has N uses or more. | |
bool | hasOneUser () const |
Return true if there is exactly one user of this value. | |
Use * | getSingleUndroppableUse () |
Return true if there is exactly one use of this value that cannot be dropped. | |
const Use * | getSingleUndroppableUse () const |
User * | getUniqueUndroppableUser () |
Return true if there is exactly one unique user of this value that cannot be dropped (that user can have multiple uses of this value). | |
const User * | getUniqueUndroppableUser () const |
bool | hasNUndroppableUses (unsigned N) const |
Return true if there this value. | |
bool | hasNUndroppableUsesOrMore (unsigned N) const |
Return true if this value has N uses or more. | |
void | dropDroppableUses (llvm::function_ref< bool(const Use *)> ShouldDrop=[](const Use *) { return true;}) |
Remove every uses that can safely be removed. | |
void | dropDroppableUsesIn (User &Usr) |
Remove every use of this value in User that can safely be removed. | |
bool | isUsedInBasicBlock (const BasicBlock *BB) const |
Check if this value is used in the specified basic block. | |
unsigned | getNumUses () const |
This method computes the number of uses of this Value. | |
void | addUse (Use &U) |
This method should only be used by the Use class. | |
unsigned | getValueID () const |
Return an ID for the concrete type of this object. | |
unsigned | getRawSubclassOptionalData () const |
Return the raw optional flags value contained in this value. | |
void | clearSubclassOptionalData () |
Clear the optional flags contained in this value. | |
bool | hasSameSubclassOptionalData (const Value *V) const |
Check the optional flags for equality. | |
bool | hasValueHandle () const |
Return true if there is a value handle associated with this value. | |
bool | isUsedByMetadata () const |
Return true if there is metadata referencing this value. | |
bool | isSwiftError () const |
Return true if this value is a swifterror value. | |
const Value * | stripPointerCasts () const |
Strip off pointer casts, all-zero GEPs and address space casts. | |
Value * | stripPointerCasts () |
const Value * | stripPointerCastsAndAliases () const |
Strip off pointer casts, all-zero GEPs, address space casts, and aliases. | |
Value * | stripPointerCastsAndAliases () |
const Value * | stripPointerCastsSameRepresentation () const |
Strip off pointer casts, all-zero GEPs and address space casts but ensures the representation of the result stays the same. | |
Value * | stripPointerCastsSameRepresentation () |
const Value * | stripPointerCastsForAliasAnalysis () const |
Strip off pointer casts, all-zero GEPs, single-argument phi nodes and invariant group info. | |
Value * | stripPointerCastsForAliasAnalysis () |
const Value * | stripInBoundsConstantOffsets () const |
Strip off pointer casts and all-constant inbounds GEPs. | |
Value * | stripInBoundsConstantOffsets () |
const Value * | stripAndAccumulateConstantOffsets (const DataLayout &DL, APInt &Offset, bool AllowNonInbounds, bool AllowInvariantGroup=false, function_ref< bool(Value &Value, APInt &Offset)> ExternalAnalysis=nullptr) const |
Accumulate the constant offset this value has compared to a base pointer. | |
Value * | stripAndAccumulateConstantOffsets (const DataLayout &DL, APInt &Offset, bool AllowNonInbounds, bool AllowInvariantGroup=false) |
const Value * | stripAndAccumulateInBoundsConstantOffsets (const DataLayout &DL, APInt &Offset) const |
This is a wrapper around stripAndAccumulateConstantOffsets with the in-bounds requirement set to false. | |
Value * | stripAndAccumulateInBoundsConstantOffsets (const DataLayout &DL, APInt &Offset) |
const Value * | stripInBoundsOffsets (function_ref< void(const Value *)> Func=[](const Value *) {}) const |
Strip off pointer casts and inbounds GEPs. | |
Value * | stripInBoundsOffsets (function_ref< void(const Value *)> Func=[](const Value *) {}) |
std::optional< int64_t > | getPointerOffsetFrom (const Value *Other, const DataLayout &DL) const |
If this ptr is provably equal to Other plus a constant offset, return that offset in bytes. | |
bool | canBeFreed () const |
Return true if the memory object referred to by V can by freed in the scope for which the SSA value defining the allocation is statically defined. | |
uint64_t | getPointerDereferenceableBytes (const DataLayout &DL, bool &CanBeNull, bool &CanBeFreed) const |
Returns the number of bytes known to be dereferenceable for the pointer value. | |
Align | getPointerAlignment (const DataLayout &DL) const |
Returns an alignment of the pointer value. | |
const Value * | DoPHITranslation (const BasicBlock *CurBB, const BasicBlock *PredBB) const |
Translate PHI node to its predecessor from the given basic block. | |
Value * | DoPHITranslation (const BasicBlock *CurBB, const BasicBlock *PredBB) |
void | mutateType (Type *Ty) |
Mutate the type of this Value to be of the specified type. | |
template<class Compare > | |
void | sortUseList (Compare Cmp) |
Sort the use-list. | |
void | reverseUseList () |
Reverse the use-list. | |
void | print (raw_ostream &O, bool IsForDebug=false) const |
Implement operator<< on Value. | |
void | print (raw_ostream &O, ModuleSlotTracker &MST, bool IsForDebug=false) const |
void | printAsOperand (raw_ostream &O, bool PrintType=true, const Module *M=nullptr) const |
Print the name of this Value out to the specified raw_ostream. | |
void | printAsOperand (raw_ostream &O, bool PrintType, ModuleSlotTracker &MST) const |
Public Member Functions inherited from llvm::ilist_node_with_parent< Instruction, BasicBlock, ilist_iterator_bits< true >, ilist_parent< BasicBlock > > | |
Instruction * | getPrevNode () |
const Instruction * | getPrevNode () const |
Get the previous node, or nullptr for the list head. | |
Instruction * | getNextNode () |
Get the next node, or nullptr for the list tail. | |
const Instruction * | getNextNode () const |
Get the next node, or nullptr for the list tail. | |
Public Member Functions inherited from llvm::ilist_node_impl< ilist_detail::compute_node_options< T, 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. | |
Public Member Functions inherited from llvm::ilist_detail::node_parent_access< NodeTy, ParentTy > | |
const ParentTy * | getParent () const |
ParentTy * | getParent () |
void | setParent (ParentTy *Parent) |
Static Public Member Functions | |
static bool | isValidOperands (const Value *V1, const Value *V2, const Value *Mask) |
Return true if a shufflevector instruction can be formed with the specified operands. | |
static bool | isValidOperands (const Value *V1, const Value *V2, ArrayRef< int > Mask) |
static void | getShuffleMask (const Constant *Mask, SmallVectorImpl< int > &Result) |
Convert the input shuffle mask operand to a vector of integers. | |
static Constant * | convertShuffleMaskForBitcode (ArrayRef< int > Mask, Type *ResultTy) |
static bool | isSingleSourceMask (ArrayRef< int > Mask, int NumSrcElts) |
Return true if this shuffle mask chooses elements from exactly one source vector. | |
static bool | isSingleSourceMask (const Constant *Mask, int NumSrcElts) |
static bool | isIdentityMask (ArrayRef< int > Mask, int NumSrcElts) |
Return true if this shuffle mask chooses elements from exactly one source vector without lane crossings. | |
static bool | isIdentityMask (const Constant *Mask, int NumSrcElts) |
static bool | isSelectMask (ArrayRef< int > Mask, int NumSrcElts) |
Return true if this shuffle mask chooses elements from its source vectors without lane crossings. | |
static bool | isSelectMask (const Constant *Mask, int NumSrcElts) |
static bool | isReverseMask (ArrayRef< int > Mask, int NumSrcElts) |
Return true if this shuffle mask swaps the order of elements from exactly one source vector. | |
static bool | isReverseMask (const Constant *Mask, int NumSrcElts) |
static bool | isZeroEltSplatMask (ArrayRef< int > Mask, int NumSrcElts) |
Return true if this shuffle mask chooses all elements with the same value as the first element of exactly one source vector. | |
static bool | isZeroEltSplatMask (const Constant *Mask, int NumSrcElts) |
static bool | isTransposeMask (ArrayRef< int > Mask, int NumSrcElts) |
Return true if this shuffle mask is a transpose mask. | |
static bool | isTransposeMask (const Constant *Mask, int NumSrcElts) |
static bool | isSpliceMask (ArrayRef< int > Mask, int NumSrcElts, int &Index) |
Return true if this shuffle mask is a splice mask, concatenating the two inputs together and then extracts an original width vector starting from the splice index. | |
static bool | isSpliceMask (const Constant *Mask, int NumSrcElts, int &Index) |
static bool | isExtractSubvectorMask (ArrayRef< int > Mask, int NumSrcElts, int &Index) |
Return true if this shuffle mask is an extract subvector mask. | |
static bool | isExtractSubvectorMask (const Constant *Mask, int NumSrcElts, int &Index) |
static bool | isInsertSubvectorMask (ArrayRef< int > Mask, int NumSrcElts, int &NumSubElts, int &Index) |
Return true if this shuffle mask is an insert subvector mask. | |
static bool | isInsertSubvectorMask (const Constant *Mask, int NumSrcElts, int &NumSubElts, int &Index) |
static bool | isReplicationMask (ArrayRef< int > Mask, int &ReplicationFactor, int &VF) |
Return true if this shuffle mask replicates each of the VF elements in a vector ReplicationFactor times. | |
static bool | isReplicationMask (const Constant *Mask, int &ReplicationFactor, int &VF) |
static bool | isOneUseSingleSourceMask (ArrayRef< int > Mask, int VF) |
Return true if this shuffle mask represents "clustered" mask of size VF, i.e. | |
static void | commuteShuffleMask (MutableArrayRef< int > Mask, unsigned InVecNumElts) |
Change values in a shuffle permute mask assuming the two vector operands of length InVecNumElts have swapped position. | |
static bool | isInterleaveMask (ArrayRef< int > Mask, unsigned Factor, unsigned NumInputElts, SmallVectorImpl< unsigned > &StartIndexes) |
Return true if the mask interleaves one or more input vectors together. | |
static bool | isInterleaveMask (ArrayRef< int > Mask, unsigned Factor, unsigned NumInputElts) |
static bool | isDeInterleaveMaskOfFactor (ArrayRef< int > Mask, unsigned Factor, unsigned &Index) |
Check if the mask is a DE-interleave mask of the given factor Factor like: <Index, Index+Factor, ..., Index+(NumElts-1)*Factor> | |
static bool | isDeInterleaveMaskOfFactor (ArrayRef< int > Mask, unsigned Factor) |
static bool | isBitRotateMask (ArrayRef< int > Mask, unsigned EltSizeInBits, unsigned MinSubElts, unsigned MaxSubElts, unsigned &NumSubElts, unsigned &RotateAmt) |
Checks if the shuffle is a bit rotation of the first operand across multiple subelements, e.g: | |
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. | |
static bool | isBitwiseLogicOp (unsigned Opcode) |
Determine if the Opcode is and/or/xor. | |
static bool | isCast (unsigned Opcode) |
Determine if the Opcode is one of the CastInst instructions. | |
static bool | isFuncletPad (unsigned Opcode) |
Determine if the Opcode is one of the FuncletPadInst instructions. | |
static bool | isSpecialTerminator (unsigned Opcode) |
Returns true if the Opcode is a "special" terminator that does more than branch to a successor (e.g. | |
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: | |
Static Public Member Functions inherited from llvm::User | |
static bool | classof (const Value *V) |
Static Public Member Functions inherited from llvm::Value | |
static void | dropDroppableUse (Use &U) |
Remove the droppable use U . | |
Protected Member Functions | |
ShuffleVectorInst * | cloneImpl () const |
Protected Member Functions inherited from llvm::Instruction | |
~Instruction () | |
template<typename BitfieldElement > | |
BitfieldElement::Type | getSubclassData () const |
template<typename BitfieldElement > | |
void | setSubclassData (typename BitfieldElement::Type Value) |
Instruction (Type *Ty, unsigned iType, Use *Ops, unsigned NumOps, InsertPosition InsertBefore=nullptr) | |
Protected Member Functions inherited from llvm::User | |
void * | operator new (size_t Size) |
Allocate a User with an operand pointer co-allocated. | |
void * | operator new (size_t Size, unsigned Us) |
Allocate a User with the operands co-allocated. | |
void * | operator new (size_t Size, unsigned Us, unsigned DescBytes) |
Allocate a User with the operands co-allocated. | |
User (Type *ty, unsigned vty, Use *, unsigned NumOps) | |
void | allocHungoffUses (unsigned N, bool IsPhi=false) |
Allocate the array of Uses, followed by a pointer (with bottom bit set) to the User. | |
void | growHungoffUses (unsigned N, bool IsPhi=false) |
Grow the number of hung off uses. | |
~User ()=default | |
template<int Idx> | |
Use & | Op () |
template<int Idx> | |
const Use & | Op () const |
Protected Member Functions inherited from llvm::Value | |
Value (Type *Ty, unsigned scid) | |
~Value () | |
Value's destructor should be virtual by design, but that would require that Value and all of its subclasses have a vtable that effectively duplicates the information in the value ID. | |
void | getAllMetadata (SmallVectorImpl< std::pair< unsigned, MDNode * > > &MDs) const |
Appends all metadata attached to this value to MDs , sorting by KindID. | |
bool | hasMetadata () const |
Return true if this value has any metadata attached to it. | |
bool | eraseMetadata (unsigned KindID) |
Erase all metadata attachments with the given kind. | |
void | eraseMetadataIf (function_ref< bool(unsigned, MDNode *)> Pred) |
Erase all metadata attachments matching the given predicate. | |
void | clearMetadata () |
Erase all metadata attached to this Value. | |
MDNode * | getMetadataImpl (unsigned KindID) const |
Get metadata for the given kind, if any. | |
unsigned short | getSubclassDataFromValue () const |
void | setValueSubclassData (unsigned short D) |
MDNode * | getMetadata (unsigned KindID) const |
Get the current metadata attachments for the given kind, if any. | |
MDNode * | getMetadata (StringRef Kind) const |
void | getMetadata (unsigned KindID, SmallVectorImpl< MDNode * > &MDs) const |
Appends all attachments with the given ID to MDs in insertion order. | |
void | getMetadata (StringRef Kind, SmallVectorImpl< MDNode * > &MDs) const |
bool | hasMetadata (unsigned KindID) const |
Return true if this value has the given type of metadata attached. | |
bool | hasMetadata (StringRef Kind) const |
void | setMetadata (unsigned KindID, MDNode *Node) |
Set a particular kind of metadata attachment. | |
void | setMetadata (StringRef Kind, MDNode *Node) |
void | addMetadata (unsigned KindID, MDNode &MD) |
Add a metadata attachment. | |
void | addMetadata (StringRef Kind, MDNode &MD) |
Protected Member Functions inherited from llvm::ilist_node_with_parent< Instruction, BasicBlock, ilist_iterator_bits< true >, ilist_parent< BasicBlock > > | |
ilist_node_with_parent ()=default | |
Protected Member Functions inherited from llvm::ilist_node_impl< ilist_detail::compute_node_options< T, Options... >::type > | |
ilist_node_impl ()=default | |
Friends | |
class | Instruction |
Additional Inherited Members | |
Public Types inherited from llvm::Instruction | |
enum | OperationEquivalenceFlags { CompareIgnoringAlignment = 1<<0 , CompareUsingScalarTypes = 1<<1 } |
When checking for operation equivalence (using isSameOperationAs) it is sometimes useful to ignore certain attributes. More... | |
enum | TermOps |
enum | UnaryOps |
enum | BinaryOps |
enum | MemoryOps |
enum | CastOps |
enum | FuncletPadOps |
enum | OtherOps |
using | InstListType = SymbolTableList< Instruction, ilist_iterator_bits< true >, ilist_parent< BasicBlock > > |
Public Types inherited from llvm::User | |
using | op_iterator = Use * |
using | const_op_iterator = const Use * |
using | op_range = iterator_range< op_iterator > |
using | const_op_range = iterator_range< const_op_iterator > |
Public Types inherited from llvm::Value | |
enum | ValueTy |
Concrete subclass of this. More... | |
using | use_iterator = use_iterator_impl< Use > |
using | const_use_iterator = use_iterator_impl< const Use > |
using | user_iterator = user_iterator_impl< User > |
using | const_user_iterator = user_iterator_impl< const User > |
Public Attributes inherited from llvm::Instruction | |
DbgMarker * | DebugMarker = nullptr |
Optional marker recording the position for debugging information that takes effect immediately before this instruction. | |
Static Public Attributes inherited from llvm::Value | |
static constexpr unsigned | MaxAlignmentExponent = 32 |
The maximum alignment for instructions. | |
static constexpr uint64_t | MaximumAlignment = 1ULL << MaxAlignmentExponent |
Protected Types inherited from llvm::Instruction | |
using | OpaqueField = Bitfield::Element< uint16_t, 0, 15 > |
template<unsigned Offset> | |
using | AlignmentBitfieldElementT = typename Bitfield::Element< unsigned, Offset, 6, Value::MaxAlignmentExponent > |
template<unsigned Offset> | |
using | BoolBitfieldElementT = typename Bitfield::Element< bool, Offset, 1 > |
template<unsigned Offset> | |
using | AtomicOrderingBitfieldElementT = typename Bitfield::Element< AtomicOrdering, Offset, 3, AtomicOrdering::LAST > |
Protected Types inherited from llvm::Value | |
enum | : unsigned { NumUserOperandsBits = 27 } |
The number of operands in the subclass. More... | |
Protected Types inherited from llvm::ilist_node_impl< ilist_detail::compute_node_options< T, Options... >::type > | |
using | self_iterator = typename ilist_select_iterator_type< OptionsT::has_iterator_bits, ilist_detail::compute_node_options< T, Options... >::type, false, false >::type |
using | const_self_iterator = typename ilist_select_iterator_type< OptionsT::has_iterator_bits, ilist_detail::compute_node_options< T, Options... >::type, false, true >::type |
using | reverse_self_iterator = typename ilist_select_iterator_type< OptionsT::has_iterator_bits, ilist_detail::compute_node_options< T, Options... >::type, true, false >::type |
using | const_reverse_self_iterator = typename ilist_select_iterator_type< OptionsT::has_iterator_bits, ilist_detail::compute_node_options< T, Options... >::type, true, true >::type |
Static Protected Member Functions inherited from llvm::User | |
template<int Idx, typename U > | |
static Use & | OpFrom (const U *that) |
Protected Attributes inherited from llvm::Value | |
unsigned char | SubclassOptionalData: 7 |
Hold subclass data that can be dropped. | |
unsigned | NumUserOperands: NumUserOperandsBits |
unsigned | IsUsedByMD: 1 |
unsigned | HasName: 1 |
unsigned | HasMetadata: 1 |
unsigned | HasHungOffUses: 1 |
unsigned | HasDescriptor: 1 |
This instruction constructs a fixed permutation of two input vectors.
For each element of the result vector, the shuffle mask selects an element from one of the input vectors to copy to the result. Non-negative elements in the mask represent an index into the concatenated pair of input vectors. PoisonMaskElem (-1) specifies that the result element is poison.
For scalable vectors, all the elements of the mask must be 0 or -1. This requirement may be relaxed in the future.
Definition at line 1808 of file Instructions.h.
ShuffleVectorInst::ShuffleVectorInst | ( | Value * | V1, |
Value * | Mask, | ||
const Twine & | NameStr = "" , |
||
InsertPosition | InsertBefore = nullptr |
||
) |
Definition at line 1661 of file Instructions.cpp.
ShuffleVectorInst::ShuffleVectorInst | ( | Value * | V1, |
ArrayRef< int > | Mask, | ||
const Twine & | NameStr = "" , |
||
InsertPosition | InsertBefore = nullptr |
||
) |
Definition at line 1666 of file Instructions.cpp.
ShuffleVectorInst::ShuffleVectorInst | ( | Value * | V1, |
Value * | V2, | ||
Value * | Mask, | ||
const Twine & | NameStr = "" , |
||
InsertPosition | InsertBefore = nullptr |
||
) |
Definition at line 1672 of file Instructions.cpp.
References assert(), getShuffleMask(), isValidOperands(), Name, llvm::Value::setName(), and setShuffleMask().
ShuffleVectorInst::ShuffleVectorInst | ( | Value * | V1, |
Value * | V2, | ||
ArrayRef< int > | Mask, | ||
const Twine & | NameStr = "" , |
||
InsertPosition | InsertBefore = nullptr |
||
) |
Definition at line 1691 of file Instructions.cpp.
References assert(), isValidOperands(), Name, llvm::Value::setName(), setShuffleMask(), and llvm::size().
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inline |
Return true if this shuffle returns a vector with a different number of elements than its source vectors.
Examples: shufflevector <4 x n> A, <4 x n> B, <1,2,3> shufflevector <4 x n> A, <4 x n> B, <1,2,3,4,5>
Definition at line 1885 of file Instructions.h.
References getType(), and llvm::SmallVectorBase< Size_T >::size().
Referenced by foldTruncShuffle().
|
inlinestatic |
Definition at line 2281 of file Instructions.h.
References I.
Definition at line 2284 of file Instructions.h.
|
protected |
Definition at line 4326 of file Instructions.cpp.
References llvm::User::getOperand(), and getShuffleMask().
void ShuffleVectorInst::commute | ( | ) |
Swap the operands and adjust the mask to preserve the semantics of the instruction.
Definition at line 1707 of file Instructions.cpp.
References assert(), getMaskValue(), getType(), llvm::PoisonMaskElem, setShuffleMask(), and llvm::SmallVectorBase< Size_T >::size().
Referenced by llvm::InstCombinerImpl::foldSelectShuffle(), and llvm::InstCombinerImpl::visitShuffleVectorInst().
|
inlinestatic |
Change values in a shuffle permute mask assuming the two vector operands of length InVecNumElts have swapped position.
Definition at line 2213 of file Instructions.h.
Referenced by foldSelectShuffleOfSelectShuffle(), foldShuffleWithInsert(), and simplifyShuffleVectorInst().
|
static |
Definition at line 1826 of file Instructions.cpp.
References llvm::all_equal(), assert(), llvm::ConstantVector::get(), llvm::VectorType::get(), llvm::PoisonValue::get(), llvm::Type::getContext(), llvm::Type::getInt32Ty(), llvm::Constant::getNullValue(), llvm::PoisonMaskElem, and llvm::SmallVectorTemplateBase< T, bool >::push_back().
Referenced by setShuffleMask(), and llvm::ShuffleVectorConstantExpr::ShuffleVectorConstantExpr().
llvm::ShuffleVectorInst::DECLARE_TRANSPARENT_OPERAND_ACCESSORS | ( | Value | ) |
Transparently provide more efficient getOperand methods.
|
inline |
Return the shuffle mask value of this instruction for the given element index.
Return PoisonMaskElem if the element is undef.
Definition at line 1855 of file Instructions.h.
Referenced by commute(), findDemandedEltsBySingleUser(), llvm::findScalarElement(), foldIdentityExtractShuffle(), llvm::InstCombinerImpl::foldSelectShuffle(), and isShuffleEquivalentToSelect().
|
inline |
Definition at line 1879 of file Instructions.h.
Referenced by cloneImpl(), llvm::IRBuilderBase::CreateShuffleVector(), isConcat(), isIdentityWithExtract(), isIdentityWithPadding(), LLVMConstShuffleVector(), ShuffleVectorInst(), and upgradeX86IntrinsicCall().
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static |
Convert the input shuffle mask operand to a vector of integers.
Undefined elements of the mask are returned as PoisonMaskElem.
Definition at line 1787 of file Instructions.cpp.
References assert(), llvm::CallingConv::C, and I.
Referenced by canonicalizeInsertSplat(), foldCastShuffle(), foldIdentityPaddedShuffles(), llvm::InstCombinerImpl::foldSelectShuffle(), foldSelectShuffleOfSelectShuffle(), foldSelectShuffleWith1Binop(), foldShuffleOfUnaryOps(), foldShuffleWithInsert(), foldTruncShuffle(), getShuffleDemandedElts(), isReInterleaveMask(), isShuffleEquivalentToSelect(), llvm::AArch64TargetLowering::lowerInterleavedStore(), llvm::ARMTargetLowering::lowerInterleavedStore(), llvm::RISCVTargetLowering::lowerInterleavedStore(), llvm::X86TargetLowering::lowerInterleavedStore(), narrowVectorSelect(), llvm::InstCombinerImpl::simplifyBinOpSplats(), and llvm::InstCombinerImpl::visitShuffleVectorInst().
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inline |
Return the mask for this instruction as a vector of integers.
Undefined elements of the mask are returned as PoisonMaskElem.
Definition at line 1864 of file Instructions.h.
References llvm::SmallVectorTemplateCommon< T, typename >::begin(), and llvm::SmallVectorTemplateCommon< T, typename >::end().
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inline |
Return the mask for this instruction, for use in bitcode.
TODO: This is temporary until we decide a new bitcode encoding for shufflevector.
Definition at line 1872 of file Instructions.h.
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inline |
Overload to return most specific vector type.
Definition at line 1846 of file Instructions.h.
References llvm::Value::getType().
Referenced by canonicalizeInsertSplat(), commute(), llvm::findScalarElement(), foldCastShuffle(), foldIdentityExtractShuffle(), foldIdentityPaddedShuffles(), llvm::InstCombinerImpl::foldSelectShuffle(), foldSelectShuffleWith1Binop(), foldShuffleOfUnaryOps(), foldTruncShuffle(), getShuffleDemandedElts(), isConcat(), isIdentityWithExtract(), isIdentityWithPadding(), isInterleave(), isOneUseSingleSourceMask(), isReplicationMask(), llvm::AArch64TargetLowering::lowerInterleavedLoad(), llvm::ARMTargetLowering::lowerInterleavedLoad(), llvm::AArch64TargetLowering::lowerInterleavedStore(), llvm::ARMTargetLowering::lowerInterleavedStore(), llvm::RISCVTargetLowering::lowerInterleavedStore(), llvm::X86TargetLowering::lowerInterleavedStore(), narrowVectorSelect(), setShuffleMask(), llvm::ARMTargetLowering::shouldConvertSplatType(), and llvm::InstCombinerImpl::visitShuffleVectorInst().
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inline |
Return true if this shuffle returns a vector with a greater number of elements than its source vectors.
Example: shufflevector <2 x n> A, <2 x n> B, <1,2,3>
Definition at line 1896 of file Instructions.h.
References getType(), and llvm::SmallVectorBase< Size_T >::size().
Referenced by foldTruncShuffle().
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static |
Checks if the shuffle is a bit rotation of the first operand across multiple subelements, e.g:
shuffle <8 x i8> a, <8 x i8> poison, <8 x i32> <1, 0, 3, 2, 5, 4, 7, 6>
could be expressed as
rotl <4 x i16> a, 8
If it can be expressed as a rotation, returns the number of subelements to group by in NumSubElts and the number of bits to rotate left in RotateAmt.
Definition at line 2425 of file Instructions.cpp.
References matchShuffleAsBitRotate().
Referenced by isLegalBitRotate(), and matchShuffleAsBitRotate().
bool ShuffleVectorInst::isConcat | ( | ) | const |
Return true if this shuffle concatenates its 2 source vectors.
This returns false if either input is undefined. In that case, the shuffle is is better classified as an identity with padding operation.
Definition at line 2149 of file Instructions.cpp.
References getShuffleMask(), getType(), and isIdentityMaskImpl().
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inlinestatic |
Definition at line 2260 of file Instructions.h.
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static |
Check if the mask is a DE-interleave mask of the given factor Factor
like: <Index, Index+Factor, ..., Index+(NumElts-1)*Factor>
Definition at line 2378 of file Instructions.cpp.
Referenced by llvm::AArch64TTIImpl::getShuffleCost(), and isDeInterleaveMask().
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static |
Return true if this shuffle mask is an extract subvector mask.
A valid extract subvector mask returns a smaller vector from a single source operand. The base extraction index is returned as well.
Definition at line 2009 of file Instructions.cpp.
References isSingleSourceMaskImpl(), and llvm::Offset.
Referenced by areExtractShuffleVectors(), and llvm::BasicTTIImplBase< T >::improveShuffleKindFromMask().
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inlinestatic |
Definition at line 2121 of file Instructions.h.
References assert().
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inline |
Return true if this shuffle mask is an extract subvector mask.
Definition at line 2134 of file Instructions.h.
References getType().
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inline |
Return true if this shuffle chooses elements from exactly one source vector without lane crossings and does not change the number of elements from its input vectors.
Example: shufflevector <4 x n> A, <4 x n> B, <4,undef,6,undef>
Definition at line 1949 of file Instructions.h.
References getType(), and llvm::SmallVectorBase< Size_T >::size().
Return true if this shuffle mask chooses elements from exactly one source vector without lane crossings.
A shuffle using this mask is not necessarily a no-op because it may change the number of elements from its input vectors or it may provide demanded bits knowledge via undef lanes. Example: <undef,undef,2,3>
Definition at line 1882 of file Instructions.cpp.
References isIdentityMaskImpl().
Referenced by foldExtractSubvectorFromShuffleVector(), foldSelectShuffleOfSelectShuffle(), llvm::X86TTIImpl::getShuffleCost(), isRepeatedNonIdentityClusteredMask(), llvm::ARMTargetLowering::isShuffleMaskLegal(), lowerVECTOR_SHUFFLE(), and reorderOrder().
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inlinestatic |
Definition at line 1932 of file Instructions.h.
References assert().
bool ShuffleVectorInst::isIdentityWithExtract | ( | ) | const |
Return true if this shuffle extracts the first N elements of exactly one source vector.
Definition at line 2135 of file Instructions.cpp.
References getShuffleMask(), getType(), and isIdentityMaskImpl().
Referenced by foldIdentityExtractShuffle(), and narrowVectorSelect().
bool ShuffleVectorInst::isIdentityWithPadding | ( | ) | const |
Return true if this shuffle lengthens exactly one source vector with undefs in the high elements.
Definition at line 2111 of file Instructions.cpp.
References getShuffleMask(), getType(), and isIdentityMaskImpl().
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Return true if this shuffle mask is an insert subvector mask.
A valid insert subvector mask inserts the lowest elements of a second source operand into an in-place first source operand. Both the sub vector width and the insertion index is returned.
Definition at line 2038 of file Instructions.cpp.
References assert(), llvm::APInt::countl_zero(), llvm::APInt::countr_zero(), llvm::APInt::getZero(), isIdentityMaskImpl(), isSingleSourceMaskImpl(), llvm::APInt::isZero(), and llvm::APInt::setBit().
Referenced by getShuffleCost(), llvm::BasicTTIImplBase< T >::improveShuffleKindFromMask(), and lowerVECTOR_SHUFFLEAsVSlideup().
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Definition at line 2151 of file Instructions.h.
References assert().
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Return true if this shuffle mask is an insert subvector mask.
Definition at line 2164 of file Instructions.h.
References getType().
Return if this shuffle interleaves its two input vectors together.
Definition at line 2283 of file Instructions.cpp.
References llvm::FixedVectorType::getNumElements(), llvm::User::getOperand(), getType(), and isInterleaveMask().
Referenced by isReInterleaveMask().
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Definition at line 2249 of file Instructions.h.
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Return true if the mask interleaves one or more input vectors together.
I.e. <0, LaneLen, ... , LaneLen*(Factor - 1), 1, LaneLen + 1, ...> E.g. For a Factor of 2 (LaneLen=4): <0, 4, 1, 5, 2, 6, 3, 7> E.g. For a Factor of 3 (LaneLen=4): <4, 0, 9, 5, 1, 10, 6, 2, 11, 7, 3, 12> E.g. For a Factor of 4 (LaneLen=2): <0, 2, 6, 4, 1, 3, 7, 5>
NumInputElts is the total number of elements in the input vectors.
StartIndexes are the first indexes of each vector being interleaved, substituting any indexes that were undef E.g. <4, -1, 2, 5, 1, 3> (Factor=3): StartIndexes=<4, 0, 2>
Note that this does not check if the input vectors are consecutive: It will return true for masks such as <0, 4, 6, 1, 5, 7> (Factor=3, LaneLen=2)
Definition at line 2294 of file Instructions.cpp.
References I, llvm::isPowerOf2_32(), and llvm::SmallVectorImpl< T >::resize().
Referenced by llvm::AArch64TTIImpl::getShuffleCost(), llvm::RISCVTTIImpl::getShuffleCost(), isInterleave(), and isInterleaveShuffle().
Return true if this shuffle mask represents "clustered" mask of size VF, i.e.
each index between [0..VF) is used exactly once in each submask of size VF. For example, the mask for VF=4
is: 0, 1, 2, 3, 3, 2, 0, 1 - "clustered", because each submask of size 4 (0,1,2,3 and 3,2,0,1) uses indices [0..VF) exactly one time. 0, 1, 2, 3, 3, 3, 1, 0 - not "clustered", because element 3 is used twice in the second submask (3,3,1,0) and index 2 is not used at all.
Definition at line 2252 of file Instructions.cpp.
References llvm::all_of(), Idx, and llvm::PoisonMaskElem.
Referenced by llvm::slpvectorizer::BoUpSLP::getReorderingData(), and isOneUseSingleSourceMask().
bool ShuffleVectorInst::isOneUseSingleSourceMask | ( | int | VF | ) | const |
Return true if this shuffle mask is a one-use-single-source("clustered") mask.
Return true if this shuffle mask is a replication mask.
Definition at line 2272 of file Instructions.cpp.
References getType(), isOneUseSingleSourceMask(), and isSingleSourceMask().
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Return true if this shuffle mask replicates each of the VF
elements in a vector ReplicationFactor
times.
For example, the mask for ReplicationFactor=3
and VF=4
is: <0,0,0,1,1,1,2,2,2,3,3,3>
Definition at line 2191 of file Instructions.cpp.
References llvm::is_contained(), isReplicationMaskWithParams(), llvm::PoisonMaskElem, llvm::reverse(), and llvm::size().
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Definition at line 2181 of file Instructions.h.
References assert().
bool ShuffleVectorInst::isReplicationMask | ( | int & | ReplicationFactor, |
int & | VF | ||
) | const |
Return true if this shuffle mask is a replication mask.
Definition at line 2237 of file Instructions.cpp.
References getType(), isReplicationMaskWithParams(), and llvm::SmallVectorBase< Size_T >::size().
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Return true if this shuffle swaps the order of elements from exactly one source vector.
Example: shufflevector <4 x n> A, <4 x n> B, <3,undef,1,undef> TODO: Optionally allow length-changing shuffles.
Definition at line 2016 of file Instructions.h.
References isReverseMask(), and llvm::SmallVectorBase< Size_T >::size().
Return true if this shuffle mask swaps the order of elements from exactly one source vector.
Example: <7,6,undef,4> This assumes that vector operands (of length NumSrcElts
) are the same length as the mask.
Definition at line 1890 of file Instructions.cpp.
References I, and isSingleSourceMask().
Referenced by llvm::BasicTTIImplBase< T >::improveShuffleKindFromMask(), and lowerBitreverseShuffle().
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Definition at line 2005 of file Instructions.h.
References assert(), and isReverseMask().
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Return true if this shuffle chooses elements from its source vectors without lane crossings and all operands have the same number of elements.
In other words, this shuffle is equivalent to a vector select with a constant condition operand. Example: shufflevector <4 x n> A, <4 x n> B, <undef,1,6,3> This returns false if the mask does not choose from both input vectors. In that case, the shuffle is better classified as an identity shuffle. TODO: Optionally allow length-changing shuffles.
Definition at line 1995 of file Instructions.h.
References llvm::SmallVectorBase< Size_T >::size().
Referenced by llvm::InstCombinerImpl::foldSelectShuffle(), foldSelectShuffleOfSelectShuffle(), and foldSelectShuffleWith1Binop().
Return true if this shuffle mask chooses elements from its source vectors without lane crossings.
A shuffle using this mask would be equivalent to a vector select with a constant condition operand. Example: <4,1,6,undef> This returns false if the mask does not choose from both input vectors. In that case, the shuffle is better classified as an identity shuffle. This assumes that vector operands are the same length as the mask (a length-changing shuffle can never be equivalent to a vector select).
Definition at line 1924 of file Instructions.cpp.
References I, and isSingleSourceMask().
Referenced by foldSelectShuffleOfSelectShuffle(), and llvm::BasicTTIImplBase< T >::improveShuffleKindFromMask().
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Definition at line 1980 of file Instructions.h.
References assert().
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Return true if this shuffle chooses elements from exactly one source vector without changing the length of that vector.
Example: shufflevector <4 x n> A, <4 x n> B, <3,0,undef,3> TODO: Optionally allow length-changing shuffles.
Definition at line 1921 of file Instructions.h.
References llvm::SmallVectorBase< Size_T >::size().
Return true if this shuffle mask chooses elements from exactly one source vector.
Example: <7,5,undef,7> This assumes that vector operands (of length NumSrcElts
) are the same length as the mask.
Definition at line 1864 of file Instructions.cpp.
References isSingleSourceMaskImpl().
Referenced by GenerateFixedLengthSVETBL(), isOneUseSingleSourceMask(), isReverseMask(), isSelectMask(), and isZeroEltSplatMask().
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Definition at line 1910 of file Instructions.h.
References assert().
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Return true if this shuffle splices two inputs without changing the length of the vectors.
This operation concatenates the two inputs together and then extracts an original width vector starting from the splice index. Example: shufflevector <4 x n> A, <4 x n> B, <1,2,3,4>
Definition at line 2111 of file Instructions.h.
References llvm::SmallVectorBase< Size_T >::size().
Return true if this shuffle mask is a splice mask, concatenating the two inputs together and then extracts an original width vector starting from the splice index.
Example: shufflevector <4 x n> A, <4 x n> B, <1,2,3,4> This assumes that vector operands (of length NumSrcElts
) are the same length as the mask.
Definition at line 1975 of file Instructions.cpp.
References I.
Referenced by llvm::BasicTTIImplBase< T >::improveShuffleKindFromMask().
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Definition at line 2100 of file Instructions.h.
References assert().
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Return true if this shuffle transposes the elements of its inputs without changing the length of the vectors.
This operation may also be known as a merge or interleave. See the description for isTransposeMask() for the exact specification. Example: shufflevector <4 x n> A, <4 x n> B, <0,4,2,6>
Definition at line 2089 of file Instructions.h.
References llvm::SmallVectorBase< Size_T >::size().
Return true if this shuffle mask is a transpose mask.
Transpose vector masks transpose a 2xn matrix. They read corresponding even- or odd-numbered vector elements from two n-dimensional source vectors and write each result into consecutive elements of an n-dimensional destination vector. Two shuffles are necessary to complete the transpose, one for the even elements and another for the odd elements. This description closely follows how the TRN1 and TRN2 AArch64 instructions operate.
For example, a simple 2x2 matrix can be transposed with:
; Original matrix m0 = < a, b > m1 = < c, d >
; Transposed matrix t0 = < a, c > = shufflevector m0, m1, < 0, 2 > t1 = < b, d > = shufflevector m0, m1, < 1, 3 >
For matrices having greater than n columns, the resulting nx2 transposed matrix is stored in two result vectors such that one vector contains interleaved elements from all the even-numbered rows and the other vector contains interleaved elements from all the odd-numbered rows. For example, a 2x4 matrix can be transposed with:
; Original matrix m0 = < a, b, c, d > m1 = < e, f, g, h >
; Transposed matrix t0 = < a, e, c, g > = shufflevector m0, m1 < 0, 4, 2, 6 > t1 = < b, f, d, h > = shufflevector m0, m1 < 1, 5, 3, 7 >
Definition at line 1939 of file Instructions.cpp.
References I, and llvm::isPowerOf2_32().
Referenced by llvm::BasicTTIImplBase< T >::improveShuffleKindFromMask().
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Definition at line 2077 of file Instructions.h.
References assert().
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Definition at line 1725 of file Instructions.cpp.
References llvm::all_equal(), llvm::Value::getType(), and llvm::PoisonMaskElem.
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Return true if a shufflevector instruction can be formed with the specified operands.
Definition at line 1745 of file Instructions.cpp.
References getNumElements(), llvm::Value::getType(), and llvm::Type::isVectorTy().
Referenced by llvm::ConstantExpr::getShuffleVector(), llvm::ShuffleVectorConstantExpr::ShuffleVectorConstantExpr(), ShuffleVectorInst(), and validShuffleVectorIndex().
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Return true if all elements of this shuffle are the same value as the first element of exactly one source vector without changing the length of that vector.
Example: shufflevector <4 x n> A, <4 x n> B, <undef,0,undef,0> TODO: Optionally allow length-changing shuffles. TODO: Optionally allow splats from other elements.
Definition at line 2039 of file Instructions.h.
References llvm::SmallVectorBase< Size_T >::size().
Return true if this shuffle mask chooses all elements with the same value as the first element of exactly one source vector.
Example: <4,undef,undef,4> This assumes that vector operands (of length NumSrcElts
) are the same length as the mask.
Definition at line 1910 of file Instructions.cpp.
References I, and isSingleSourceMask().
Referenced by llvm::BasicTTIImplBase< T >::improveShuffleKindFromMask().
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Definition at line 2026 of file Instructions.h.
References assert().
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Definition at line 1831 of file Instructions.h.
References Ptr.
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Definition at line 1830 of file Instructions.h.
void ShuffleVectorInst::setShuffleMask | ( | ArrayRef< int > | Mask | ) |
Definition at line 1821 of file Instructions.cpp.
References llvm::SmallVectorImpl< T >::assign(), convertShuffleMaskForBitcode(), and getType().
Referenced by commute(), and ShuffleVectorInst().
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Definition at line 1814 of file Instructions.h.