LLVM 20.0.0git
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#include "llvm/IR/Instruction.h"
Public Types | |
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 Member Functions | |
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 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 . | |
Public Attributes | |
DbgMarker * | DebugMarker = nullptr |
Optional marker recording the position for debugging information that takes effect immediately before this instruction. | |
Protected Member Functions | |
~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 | SymbolTableListTraits< Instruction, ilist_iterator_bits< true >, ilist_parent< BasicBlock > > |
class | BasicBlock |
Various leaf nodes. | |
Additional Inherited Members | |
Static Public Attributes inherited from llvm::Value | |
static constexpr unsigned | MaxAlignmentExponent = 32 |
The maximum alignment for instructions. | |
static constexpr uint64_t | MaximumAlignment = 1ULL << MaxAlignmentExponent |
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 |
Definition at line 65 of file Instruction.h.
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Definition at line 143 of file Instruction.h.
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Definition at line 151 of file Instruction.h.
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Definition at line 148 of file Instruction.h.
using llvm::Instruction::InstListType = SymbolTableList<Instruction, ilist_iterator_bits<true>, ilist_parent<BasicBlock> > |
Definition at line 70 of file Instruction.h.
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Definition at line 135 of file Instruction.h.
Definition at line 959 of file Instruction.h.
Definition at line 973 of file Instruction.h.
Definition at line 980 of file Instruction.h.
Definition at line 966 of file Instruction.h.
When checking for operation equivalence (using isSameOperationAs) it is sometimes useful to ignore certain attributes.
Enumerator | |
---|---|
CompareIgnoringAlignment | Check for equivalence ignoring load/store alignment. |
CompareUsingScalarTypes | Check for equivalence treating a type and a vector of that type as equivalent. |
Definition at line 888 of file Instruction.h.
Definition at line 987 of file Instruction.h.
Definition at line 945 of file Instruction.h.
Definition at line 952 of file Instruction.h.
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Definition at line 46 of file Instruction.cpp.
References assert(), llvm::UndefValue::get(), llvm::ilist_detail::node_parent_access< NodeTy, ParentTy >::getParent(), llvm::Value::getType(), llvm::ValueAsMetadata::handleRAUW(), llvm::Value::isUsedByMetadata(), and setMetadata().
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Definition at line 35 of file Instruction.cpp.
References assert(), insertInto(), and llvm::InsertPosition::isValid().
void Instruction::addAnnotationMetadata | ( | SmallVector< StringRef > | Annotations | ) |
Adds an !annotation metadata node with an array of Annotations
as a tuple to this instruction.
If this instruction already has !annotation metadata, append the tuple to the existing node.
Definition at line 1665 of file Metadata.cpp.
References llvm::any_of(), llvm::MDBuilder::createString(), llvm::MDTuple::get(), llvm::Value::getContext(), getMetadata(), N, llvm::SmallVectorTemplateBase< T, bool >::push_back(), and setMetadata().
void Instruction::addAnnotationMetadata | ( | StringRef | Annotation | ) |
Adds an !annotation metadata node with Annotation
to this instruction.
If this instruction already has !annotation metadata, append Annotation
to the existing node.
Definition at line 1695 of file Metadata.cpp.
References llvm::MDBuilder::createString(), llvm::MDTuple::get(), llvm::Value::getContext(), getMetadata(), N, Name, llvm::SmallVectorTemplateBase< T, bool >::push_back(), and setMetadata().
void Instruction::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.
Definition at line 266 of file Instruction.cpp.
References llvm::DbgMarker::absorbDebugValues(), DebugMarker, llvm::BasicBlock::deleteTrailingDbgRecords(), llvm::BasicBlock::end(), llvm::DbgMarker::eraseFromParent(), llvm::BasicBlock::getMarker(), llvm::ilist_detail::node_parent_access< NodeTy, ParentTy >::getParent(), llvm::DbgMarker::MarkedInstr, and llvm::DbgMarker::StoredDbgRecords.
Referenced by insertBefore().
Logical 'and' of any supported wrapping, exact, and fast-math flags of V and this instruction.
Definition at line 659 of file Instruction.cpp.
References copyFastMathFlags(), FP, getFastMathFlags(), hasNonNeg(), hasNoSignedWrap(), hasNoUnsignedWrap(), isExact(), setHasNoSignedWrap(), setHasNoUnsignedWrap(), setIsExact(), and setNonNeg().
Referenced by llvm::InstCombinerImpl::foldPHIArgBinOpIntoPHI(), llvm::InstCombinerImpl::foldSelectOpOp(), foldShuffleOfUnaryOps(), NegateValue(), sinkLastInstruction(), and llvm::InstCombinerImpl::visitCallInst().
void Instruction::applyMergedLocation | ( | DILocation * | LocA, |
DILocation * | LocB | ||
) |
Merge 2 debug locations and apply it to the Instruction.
If the instruction is a CallIns, we need to traverse the inline chain to find the common scope. This is not efficient for N-way merging as each time you merge 2 iterations, you need to rebuild the hashmap to find the common scope. However, we still choose this API because: 1) Simplicity: it takes 2 locations instead of a list of locations. 2) In worst case, it increases the complexity from O(N*I) to O(2*N*I), where N is # of Instructions to merge, and I is the maximum level of inline stack. So it is still linear. 3) Merging of call instructions should be extremely rare in real applications, thus the N-way merging should be in code path. The DebugLoc attached to this instruction will be overwritten by the merged DebugLoc.
Definition at line 932 of file DebugInfo.cpp.
References llvm::DILocation::getMergedLocation(), and setDebugLoc().
Referenced by llvm::InstCombinerImpl::PHIArgMergedDebugLoc(), sinkLastInstruction(), and updateForIncomingValueLocation().
Methods for support type inquiry through isa, cast, and dyn_cast:
Definition at line 938 of file Instruction.h.
Instruction * Instruction::clone | ( | ) | const |
Create a copy of 'this' instruction that is identical in all ways except the following:
Definition at line 1299 of file Instruction.cpp.
References getOpcode(), llvm_unreachable, and llvm::Value::SubclassOptionalData.
Referenced by buildPartialInvariantUnswitchConditionalBranch(), cloneInstructionsIntoPredecessorBlockAndUpdateSSAUses(), llvm::ehAwareSplitEdge(), expandToSwitch(), findOrCreatePHIInBlock(), llvm::FoldReturnIntoUncondBranch(), mergeCompatibleInvokesImpl(), replaceGEPIdxWithZero(), SinkCast(), SplitLandingPadPredecessorsImpl(), unswitchNontrivialInvariants(), unswitchTrivialBranch(), and versionCallSiteWithCond().
iterator_range< DbgRecord::self_iterator > Instruction::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.
Used to copy debugging information from one block to another, when copying entire blocks.
From
The instruction to clone debug-info from. from_here
Optional iterator to limit DbgRecords cloned to be a range from from_here to end(). InsertAtHead
Whether the cloned DbgRecords should be placed at the end or the beginning of existing DbgRecords attached to this. Definition at line 233 of file Instruction.cpp.
References assert(), llvm::DbgMarker::cloneDebugInfoFrom(), DebugMarker, From, llvm::DbgMarker::getEmptyDbgRecordRange(), and llvm::ilist_detail::node_parent_access< NodeTy, ParentTy >::getParent().
Referenced by llvm::CloneBasicBlock(), llvm::JumpThreadingPass::cloneInstructions(), cloneInstructionsIntoPredecessorBlockAndUpdateSSAUses(), llvm::JumpThreadingPass::duplicateCondBranchOnPHIIntoPred(), and performBranchToCommonDestFolding().
bool Instruction::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.
In this worst case, this takes linear time in the number of instructions in the block. The results are cached, so in common cases when the block remains unmodified, it takes constant time.
Definition at line 318 of file Instruction.cpp.
References assert(), llvm::ilist_detail::node_parent_access< NodeTy, ParentTy >::getParent(), and llvm::Other.
Referenced by domTreeLevelBefore(), llvm::InstructionPrecedenceTracking::isPreceededBySpecialInstruction(), llvm::isValidAssumeForContext(), and llvm::BasicBlock::validateInstrOrdering().
void Instruction::copyFastMathFlags | ( | const Instruction * | I | ) |
Copy I's fast-math flags.
Definition at line 615 of file Instruction.cpp.
References copyFastMathFlags(), and I.
void Instruction::copyFastMathFlags | ( | FastMathFlags | FMF | ) |
Convenience function for transferring all fast-math flag values to this instruction, which must be an operator which supports these flags.
See LangRef.html for the meaning of these flags.
Definition at line 565 of file Instruction.cpp.
References assert().
Referenced by andIRFlags(), copyFastMathFlags(), copyIRFlags(), modifyIntrinsicCall(), llvm::InstCombinerImpl::visitCallInst(), llvm::InstCombinerImpl::visitFNeg(), and llvm::InstCombinerImpl::visitFPTrunc().
Convenience method to copy supported exact, fast-math, and (optionally) wrapping flags from V to this instruction.
Definition at line 619 of file Instruction.cpp.
References copyFastMathFlags(), FP, setHasNoSignedWrap(), setHasNoUnsignedWrap(), setIsExact(), and setNonNeg().
Referenced by llvm::CmpInst::CmpInst(), llvm::BinaryOperator::CreateWithCopiedFlags(), llvm::CmpInst::CreateWithCopiedFlags(), llvm::UnaryOperator::CreateWithCopiedFlags(), llvm::InstCombinerImpl::foldPHIArgBinOpIntoPHI(), llvm::InstCombinerImpl::foldSelectIntoOp(), llvm::InstCombinerImpl::foldSelectOpOp(), foldSelectShuffleWith1Binop(), foldShuffleOfUnaryOps(), llvm::InstCombinerImpl::foldVariableSignZeroExtensionOfVariableHighBitExtract(), llvm::InstCombinerImpl::foldVectorBinop(), and llvm::InstCombinerImpl::visitCallInst().
void Instruction::copyMetadata | ( | const Instruction & | SrcInst, |
ArrayRef< unsigned > | WL = ArrayRef<unsigned>() |
||
) |
Copy metadata from SrcInst
to this instruction.
WL
, if not empty, specifies the list of meta data that needs to be copied. If WL
is empty, all meta data will be copied.
Definition at line 1280 of file Instruction.cpp.
References llvm::ArrayRef< T >::begin(), llvm::ArrayRef< T >::empty(), llvm::ArrayRef< T >::end(), getAllMetadataOtherThanDebugLoc(), getDebugLoc(), hasMetadata(), setDebugLoc(), and setMetadata().
Referenced by llvm::breakLoopBackedge(), llvm::ConstantFoldTerminator(), llvm::SelectInst::Create(), llvm::createCallMatchingInvoke(), llvm::IRBuilderBase::CreateCondBr(), doPromotion(), instCombineSVELD1(), instCombineSVEST1(), llvm::SITargetLowering::lowerIdempotentRMWIntoFencedLoad(), modifyIntrinsicCall(), simplifyAMDGCNMemoryIntrinsicDemanded(), llvm::InstCombinerImpl::SimplifyAnyMemSet(), llvm::InstCombinerImpl::SimplifyAnyMemTransfer(), and llvm::InstCombinerImpl::visitSub().
void Instruction::dropDbgRecords | ( | ) |
Erase any DbgRecords attached to this instruction.
Definition at line 309 of file Instruction.cpp.
References DebugMarker, and llvm::DbgMarker::dropDbgRecords().
Referenced by llvm::removeAllNonTerminatorAndEHPadInstructions(), and splitCallSite().
void Instruction::dropLocation | ( | ) |
Drop the instruction's debug location.
This does not guarantee removal of the !dbg source location attachment, as it must set a line 0 location with scope information attached on call instructions. To guarantee removal of the !dbg attachment, use the setDebugLoc() API. Note: it is undefined behavior to call this on an instruction not currently inserted into a function.
Definition at line 967 of file DebugInfo.cpp.
References DL, llvm::MDNode::get(), llvm::Value::getContext(), getDebugLoc(), getFunction(), llvm::Function::getSubprogram(), II, llvm::IntrinsicInst::mayLowerToFunctionCall(), and setDebugLoc().
Referenced by NegateValue(), unswitchNontrivialInvariants(), and updateLocationAfterHoist().
void Instruction::dropOneDbgRecord | ( | DbgRecord * | I | ) |
Erase a single DbgRecord I
that is attached to this instruction.
Definition at line 314 of file Instruction.cpp.
References DebugMarker, and llvm::DbgMarker::dropOneDbgRecord().
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Drops flags, return attributes and metadata that may generate poison.
Definition at line 526 of file Instruction.h.
Referenced by clearAssumptionsOfUsers().
void Instruction::dropPoisonGeneratingFlags | ( | ) |
Drops flags that may cause this instruction to evaluate to poison despite having non-poison inputs.
Definition at line 410 of file Instruction.cpp.
References assert(), getOpcode(), hasPoisonGeneratingFlags(), llvm::GEPNoWrapFlags::none(), setHasNoInfs(), setHasNoNaNs(), and setNonNeg().
Referenced by foldSelectShuffleWith1Binop(), optimizeBranch(), llvm::patchReplacementInstruction(), and simplifyAssocCastAssoc().
void Instruction::dropPoisonGeneratingMetadata | ( | ) |
Drops metadata that may generate poison.
Definition at line 460 of file Instruction.cpp.
References llvm::Value::eraseMetadata().
void Instruction::dropPoisonGeneratingReturnAttributes | ( | ) |
Drops return attributes that may generate poison.
Definition at line 476 of file Instruction.cpp.
References llvm::AttributeMask::addAttribute(), assert(), and hasPoisonGeneratingReturnAttributes().
void Instruction::dropUBImplyingAttrsAndMetadata | ( | ) |
Drop any attributes or metadata that can cause immediate undefined behavior.
Retain other attributes/metadata on a best-effort basis. This should be used when speculating instructions.
Definition at line 506 of file Instruction.cpp.
References dropUBImplyingAttrsAndUnknownMetadata().
Referenced by cloneInstructionsIntoPredecessorBlockAndUpdateSSAUses(), and foldOperationIntoSelectOperand().
This function drops non-debug unknown metadata (through dropUnknownNonDebugMetadata).
For calls, it also drops parameter and return attributes that can cause undefined behaviour. Both of these should be done by passes which move instructions in IR.
Definition at line 487 of file Instruction.cpp.
References dropUnknownNonDebugMetadata(), and llvm::AttributeFuncs::getUBImplyingAttributes().
Referenced by dropUBImplyingAttrsAndMetadata().
Drop all unknown metadata except for debug locations.
Passes are required to drop metadata they don't understand. This is a convenience method for passes to do so. dropUBImplyingAttrsAndUnknownMetadata should be used instead of this API if the Instruction being modified is a call.
Definition at line 1596 of file Metadata.cpp.
References llvm::ArrayRef< T >::begin(), llvm::SmallSet< T, N, C >::count(), llvm::ArrayRef< T >::end(), llvm::Value::eraseMetadataIf(), llvm::Value::hasMetadata(), and llvm::SmallSet< T, N, C >::insert().
Referenced by dropUBImplyingAttrsAndUnknownMetadata(), generateReproducer(), and llvm::gvn::AvailableValue::MaterializeAdjustedValue().
BasicBlock::iterator Instruction::eraseFromParent | ( | ) |
This method unlinks 'this' from the containing basic block and deletes it.
Definition at line 92 of file Instruction.cpp.
References llvm::ilist_node_impl< ilist_detail::compute_node_options< T, Options... >::type >::getIterator(), llvm::ilist_detail::node_parent_access< NodeTy, ParentTy >::getParent(), and handleMarkerRemoval().
Referenced by llvm::LanaiInstrInfo::analyzeBranch(), buildClonedLoopBlocks(), BuildSubAggregate(), llvm::changeToInvokeAndSplitBasicBlock(), llvm::CloneAndPruneIntoFromInst(), cloneLoopBlocks(), CloneLoopBlocks(), ConnectEpilog(), ConnectProlog(), llvm::ConstantFoldTerminator(), llvm::OpenMPIRBuilder::createAtomicCompare(), llvm::OpenMPIRBuilder::createCopyinClauseBlocks(), createMemMoveLoopKnownSize(), createMemMoveLoopUnknownSize(), createMemSetLoop(), llvm::OpenMPIRBuilder::createReductions(), llvm::OpenMPIRBuilder::createTargetInit(), llvm::OpenMPIRBuilder::createTask(), createTblForTrunc(), llvm::deleteDeadLoop(), despeculateCountZeros(), DoLowering(), doPromotion(), llvm::dropDebugUsers(), dropTypeTests(), llvm::JumpThreadingPass::duplicateCondBranchOnPHIIntoPred(), llvm::OpenMPIRBuilder::emitCancelationCheckImpl(), llvm::SITargetLowering::emitExpandAtomicRMW(), llvm::OpenMPIRBuilder::emitTargetTask(), llvm::objcarc::BundledRetainClaimRVs::eraseInst(), llvm::objcarc::EraseInstruction(), eraseTerminatorAndDCECond(), llvm::VPlan::execute(), expandAbs(), expandAnyIntrinsic(), llvm::expandAtomicRMWToCmpXchg(), expandClampIntrinsic(), llvm::expandDivision(), llvm::expandDivisionUpTo32Bits(), llvm::expandDivisionUpTo64Bits(), expandExpIntrinsic(), expandFPToI(), expandIntegerDot(), expandIToFP(), expandLengthIntrinsic(), expandLerpIntrinsic(), expandLogIntrinsic(), expandNormalizeIntrinsic(), expandPowIntrinsic(), llvm::expandRemainder(), llvm::expandRemainderUpTo32Bits(), llvm::expandRemainderUpTo64Bits(), expandToSwitch(), llvm::RandomIRBuilder::findOrCreateSource(), findPHIToPartitionLoops(), foldMemChr(), llvm::FoldReturnIntoUncondBranch(), foldTwoEntryPHINode(), generateUnsignedDivisionCode(), getStrlenWithNull(), llvm::SSAUpdater::GetValueInMiddleOfBlock(), hostParallelCallback(), injectPendingInvariantConditions(), llvm::InlineFunction(), insertBoundsCheck(), insertSpills(), insertUniqueBackedgeBlock(), llvm::lowerAtomicCmpXchgInst(), llvm::lowerAtomicRMWInst(), lowerAwaitSuspend(), lowerExpectIntrinsic(), LowerFenceInst(), llvm::SITargetLowering::lowerIdempotentRMWIntoFencedLoad(), lowerIntrinsic(), llvm::IntrinsicLowering::LowerIntrinsicCall(), llvm::IntrinsicLowering::LowerToByteSwap(), llvm::MergeBasicBlockIntoOnlyPred(), llvm::MergeBlockIntoPredecessor(), mergeCleanupPad(), mergeConditionalStoreToAddress(), llvm::InstDeleterIRStrategy::mutate(), optimizeDivRem(), OptimizeEmptyGlobalAtExitDtors(), OptimizeExtractBits(), OptimizeGlobalAddressOfAllocation(), processAnd(), processAShr(), llvm::JumpThreadingPass::processBlock(), llvm::JumpThreadingPass::processBranchOnXOR(), processCmpIntrinsic(), processMinMaxIntrinsic(), processOverflowIntrinsic(), processSDiv(), processSelect(), processSExt(), processSIToFP(), processSRem(), promoteSingleBlockAlloca(), llvm::OutlinableRegion::reattachCandidate(), ReduceLoopStrength(), llvm::removeAllNonTerminatorAndEHPadInstructions(), llvm::LanaiInstrInfo::removeBranch(), llvm::PHINode::removeIncomingValue(), llvm::PHINode::removeIncomingValueIf(), removeIntrinsicUsers(), removeMarkerCall(), llvm::SCCPSolver::removeNonFeasibleEdges(), RemovePreallocated(), removeUndefIntroducingPredecessor(), llvm::removeUnwindEdge(), replaceCalledFunction(), replaceConditionalBranchesOnConstant(), replaceFrameSizeAndAlignment(), replaceOperation(), replacePrepare(), llvm::replaceSignedInst(), llvm::rewriteLoopExitValues(), rewritePHIs(), rewriteSingleStoreAlloca(), runImpl(), scalarize(), scalarizeMaskedCompressStore(), scalarizeMaskedExpandLoad(), scalarizeMaskedGather(), scalarizeMaskedLoad(), scalarizeMaskedScatter(), scalarizeMaskedStore(), scalarizeMaskedVectorHistogram(), simplifyOneLoop(), llvm::JumpThreadingPass::simplifyPartiallyRedundantLoad(), simplifySuspendPoint(), sinkAndCmp0Expression(), SinkCast(), speculatePHINodeLoads(), splitBeforeCatchSwitch(), llvm::SplitBlockAndInsertSimpleForLoop(), splitCallSite(), llvm::SplitIndirectBrCriticalEdges(), SplitLandingPadPredecessorsImpl(), llvm::splitLoopBound(), stripDebugDeclareImpl(), targetParallelCallback(), tryToMergeLandingPad(), TryToShrinkGlobalToBoolean(), llvm::TryToSimplifyUncondBranchFromEmptyBlock(), turnToExplicitForm(), llvm::UnrollAndJamLoop(), llvm::UnrollLoop(), llvm::UnrollRuntimeLoopRemainder(), unswitchNontrivialInvariants(), unswitchTrivialBranch(), unswitchTrivialSwitch(), llvm::UpgradeARCRuntime(), llvm::UpgradeIntrinsicCall(), versionCallSiteWithCond(), llvm::LoopVersioning::versionLoop(), llvm::ObjectSizeOffsetEvaluator::visitPHINode(), and workshareLoopTargetCallback().
void Instruction::eraseMetadataIf | ( | function_ref< bool(unsigned, MDNode *)> | Pred | ) |
Erase all metadata that matches the predicate.
Definition at line 1589 of file Metadata.cpp.
References llvm::Value::eraseMetadataIf(), and llvm::DebugLoc::getAsMDNode().
Retrieve total raw weight values of a branch.
Returns true on success with profile total weights filled in. Returns false if no metadata was found.
Definition at line 1751 of file Metadata.cpp.
References assert(), and getOpcode().
Referenced by llvm::createCallMatchingInvoke().
AAMDNodes Instruction::getAAMetadata | ( | ) | const |
Returns the AA metadata for this instruction.
Definition at line 1713 of file Metadata.cpp.
References llvm::Value::getContext(), llvm::Value::hasMetadata(), Info, llvm::LLVMContext::pImpl, and llvm::LLVMContextImpl::ValueMetadata.
Referenced by foldLoadsRecursive(), llvm::MemoryLocation::get(), llvm::MemoryLocation::getForDest(), mergeConditionalStoreToAddress(), llvm::InstCombinerImpl::mergeStoreIntoSuccessor(), llvm::promoteLoopAccessesToScalars(), llvm::JumpThreadingPass::simplifyPartiallyRedundantLoad(), speculatePHINodeLoads(), speculateSelectInstLoads(), and unpackLoadToAggregate().
Type * Instruction::getAccessType | ( | ) | const |
Return the type this instruction accesses in memory, if any.
Definition at line 1038 of file Instruction.cpp.
References getOpcode(), llvm::Value::getType(), and II.
Referenced by getAccessType().
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Get all metadata attached to this Instruction.
The first element of each pair returned is the KindID, the second element is the metadata value. This list is returned sorted by the KindID.
Definition at line 399 of file Instruction.h.
Referenced by llvm::SITargetLowering::emitExpandAtomicRMW().
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This does the same thing as getAllMetadata, except that it filters out the debug location.
Definition at line 406 of file Instruction.h.
Referenced by copyMetadata(), and llvm::propagateMetadata().
const DataLayout & Instruction::getDataLayout | ( | ) | const |
Get the data layout of the module this instruction belongs to.
Requires the instruction to have a parent module.
Definition at line 74 of file Instruction.cpp.
References llvm::Module::getDataLayout(), and getModule().
Referenced by AddAlignmentAssumptions(), llvm::addDiffRuntimeChecks(), llvm::addRuntimeChecks(), collectFrameAlloca(), llvm::JumpThreadingPass::computeValueKnownInPredecessorsImpl(), llvm::LoongArchTargetLowering::emitMaskedAtomicRMWIntrinsic(), llvm::RISCVTargetLowering::emitMaskedAtomicRMWIntrinsic(), llvm::expandAtomicRMWToCmpXchg(), foldSelectICmpAnd(), llvm::MemoryLocation::get(), llvm::memtag::getAllocaSizeInBytes(), llvm::getAllocSize(), getAtomicOpSize(), llvm::DemandedBits::getDemandedBits(), getGEPInductionOperand(), llvm::isDereferenceableAndAlignedInLoop(), llvm::GCNTTIImpl::isInlineAsmSourceOfDivergence(), isLoadInvariantInLoop(), isSafePHIToSpeculate(), llvm::isSafeToSpeculativelyExecuteWithOpcode(), lookThroughCast(), llvm::RISCVTargetLowering::lowerDeinterleaveIntrinsicToLoad(), llvm::AArch64TargetLowering::lowerInterleavedLoad(), llvm::ARMTargetLowering::lowerInterleavedLoad(), llvm::RISCVTargetLowering::lowerInterleavedLoad(), NegateValue(), shortenAssignment(), llvm::JumpThreadingPass::simplifyPartiallyRedundantLoad(), llvm::simplifyRetainedKnowledge(), llvm::SplitBlockAndInsertSimpleForLoop(), trackInlinedStores(), valueCoversEntireFragment(), and visitIVCast().
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Return a range over the DbgRecords attached to this instruction.
Definition at line 104 of file Instruction.h.
References llvm::getDbgRecordRange().
Referenced by getNextNode(), hasDbgRecords(), performBranchToCommonDestFolding(), llvm::remapDebugVariable(), and llvm::memtag::StackInfoBuilder::visit().
std::optional< DbgRecord::self_iterator > Instruction::getDbgReinsertionPosition | ( | ) |
Return an iterator to the position of the "Next" DbgRecord after this instruction, or std::nullopt.
This is the position to pass to BasicBlock::reinsertInstInDbgRecords when re-inserting an instruction.
Definition at line 251 of file Instruction.cpp.
References llvm::ilist_detail::node_parent_access< NodeTy, ParentTy >::getParent(), and llvm::DbgMarker::StoredDbgRecords.
Return the debug location for this node as a DebugLoc.
Definition at line 466 of file Instruction.h.
Referenced by BreakUpSubtract(), buildClonedLoopBlocks(), buildFrameDebugInfo(), llvm::changeToInvokeAndSplitBasicBlock(), checkIfSupported(), cloneInstructionsIntoPredecessorBlockAndUpdateSSAUses(), computeCallStackHash(), ConvertShiftToMul(), copyMetadata(), llvm::CallBrInst::Create(), llvm::CallInst::Create(), llvm::VPRecipeBuilder::createEdgeMask(), llvm::InnerLoopVectorizer::createInductionResumeValue(), llvm::OpenMPIRBuilder::createTask(), despeculateCountZeros(), diagnoseInvalidFormatString(), dropLocation(), llvm::OpenMPIRBuilder::emitTargetTask(), llvm::VPWidenIntOrFpInductionRecipe::execute(), llvm::extractProbe(), llvm::extractProbeFromDiscriminator(), fixupDebugInfoPostExtraction(), fixupLineNumbers(), foldCondBranchOnValueKnownInPredecessorImpl(), llvm::InstCombinerImpl::foldOpIntoPhi(), llvm::ReplayInlineAdvisor::getAdviceImpl(), getAggregate(), getAggregateVariable(), llvm::SampleContextTracker::getCalleeContextSamplesFor(), llvm::SelectionDAGBuilder::getCurDebugLoc(), llvm::getDebugValueLoc(), getOrCreateDebugLoc(), getStableDebugLoc(), HandleByValArgumentInit(), llvm::hoistAllInstructionsInto(), llvm::InlineFunction(), insertNewDbgInst(), llvm::AMDGPU::instrumentAddress(), lowerIntrinsic(), LowerNegateToMultiply(), llvm::InstCombinerImpl::mergeStoreIntoSuccessor(), operandWithNewAddressSpaceOrCreatePoison(), optimizeDivRem(), OptimizeExtractBits(), llvm::InstCombinerImpl::PHIArgMergedDebugLoc(), processAShr(), llvm::JumpThreadingPass::processBlock(), processSDiv(), processSExt(), processSIToFP(), processSRem(), llvm::SampleContextTracker::promoteMergeContextSamplesTree(), llvm::SCCPSolver::removeNonFeasibleEdges(), llvm::removeUnwindEdge(), replaceConditionalBranchesOnConstant(), llvm::replaceSignedInst(), llvm::IRTranslator::runOnMachineFunction(), llvm::coro::salvageDebugInfo(), scalarizeMaskedCompressStore(), scalarizeMaskedExpandLoad(), scalarizeMaskedGather(), scalarizeMaskedLoad(), scalarizeMaskedScatter(), scalarizeMaskedStore(), scalarizeMaskedVectorHistogram(), llvm::FastISel::selectOperator(), llvm::setProbeDistributionFactor(), llvm::JumpThreadingPass::simplifyPartiallyRedundantLoad(), sinkAndCmp0Expression(), sinkLastInstruction(), SinkShiftAndTruncate(), SplitBlockPredecessorsImpl(), splitCallSite(), llvm::SplitKnownCriticalEdge(), SplitLandingPadPredecessorsImpl(), llvm::JumpThreadingPass::threadEdge(), TryToShrinkGlobalToBoolean(), llvm::JumpThreadingPass::unfoldSelectInstr(), unswitchNontrivialInvariants(), unswitchTrivialBranch(), unswitchTrivialSwitch(), updateForIncomingValueLocation(), and upgradeDbgIntrinsicToDbgRecord().
FastMathFlags Instruction::getFastMathFlags | ( | ) | const |
Convenience function for getting all the fast-math flags, which must be an operator which supports these flags.
See LangRef.html for the meaning of these flags.
Definition at line 610 of file Instruction.cpp.
References assert().
Referenced by llvm::RecurrenceDescriptor::AddReductionVar(), andIRFlags(), llvm::IRBuilderBase::CreateConstrainedFPBinOp(), llvm::IRBuilderBase::CreateConstrainedFPCast(), llvm::IRBuilderBase::CreateConstrainedFPUnroundedBinOp(), llvm::IRBuilderBase::CreateFAddFMF(), llvm::IRBuilderBase::CreateFDivFMF(), llvm::IRBuilderBase::CreateFMulFMF(), llvm::IRBuilderBase::CreateFNegFMF(), llvm::IRBuilderBase::CreateFRemFMF(), llvm::IRBuilderBase::CreateFSubFMF(), llvm::InstCombinerImpl::foldFMulReassoc(), foldFNegIntoConstant(), llvm::InstCombinerImpl::foldSelectOpOp(), foldTwoEntryPHINode(), getISDForVPIntrinsic(), llvm::matchDecomposedSelectPattern(), llvm::InstModificationIRStrategy::mutate(), optimizeDoubleFP(), optimizeSymmetricCall(), llvm::VPReductionRecipe::print(), llvm::VPReductionEVLRecipe::print(), and llvm::InstCombinerImpl::SimplifyAssociativeOrCommutative().
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Definition at line 188 of file Instruction.h.
References getFunction().
Return the function this instruction belongs to.
Note: it is undefined behavior to call this on an instruction not currently inserted into a function.
Definition at line 70 of file Instruction.cpp.
References llvm::ilist_detail::node_parent_access< NodeTy, ParentTy >::getParent().
Referenced by analyzeLoopUnrollCost(), atomicIgnoresDenormalModeOrFPModeIsFTZ(), canSimplifyNullLoadOrGEP(), canTransformToMemCmp(), dropLocation(), llvm::expandAtomicRMWToCmpXchg(), llvm::AArch64TargetLowering::fallBackToDAGISel(), findCallsAtConstantOffset(), fixupDebugInfoPostExtraction(), forwardStoredOnceStore(), llvm::InstCombinerImpl::freezeOtherUses(), llvm::ReplayInlineAdvisor::getAdviceImpl(), llvm::coro::Shape::getRetconResultTypes(), HandleByValArgument(), llvm::InlineFunction(), insertLifetimeMarkersSurroundingCall(), insertSpills(), llvm::InstrumentationIRBuilder::InstrumentationIRBuilder(), isAtomicRMWLegalXChgTy(), isKnownNonZeroFromAssume(), isKnownToBeAPowerOfTwo(), IsOperandAMemoryOperand(), llvm::AA::isPotentiallyReachable(), isPotentiallyReachable(), llvm::AA::isValidAtPosition(), llvm::lowerAtomicRMWInst(), lowerIntrinsic(), llvm::lowerObjectSizeCall(), mergeDIAssignID(), llvm::LoopInfo::movementPreservesLCSSAForm(), NegateValue(), optimizeDoubleFP(), llvm::AlignmentFromAssumptionsPass::processAssumption(), promoteArguments(), removeTailCallAttribute(), llvm::coro::salvageDebugInfo(), llvm::SITargetLowering::shouldExpandAtomicRMWInIR(), simplifyFCmpInst(), simplifyInstructionWithOperands(), llvm::OutlinableRegion::splitCandidate(), suppressSpeculativeLoadForSanitizers(), tryToOptimizeStoreOfAllocationToGlobal(), llvm::InstCombinerImpl::visitCallInst(), llvm::InstCombinerImpl::visitReturnInst(), llvm::InstCombinerImpl::visitSExt(), llvm::InstCombinerImpl::visitTrunc(), and llvm::InstCombinerImpl::visitZExt().
std::optional< BasicBlock::iterator > Instruction::getInsertionPointAfterDef | ( | ) |
Get the first insertion point at which the result of this instruction is defined.
This is not the directly following instruction in a number of cases, e.g. phi nodes or terminators that return values. This function may return null if the insertion after the definition is not possible, e.g. due to a catchswitch terminator.
Definition at line 328 of file Instruction.cpp.
References assert(), llvm::BasicBlock::end(), llvm::BasicBlock::getFirstInsertionPt(), llvm::ilist_node_impl< ilist_detail::compute_node_options< T, Options... >::type >::getIterator(), llvm::ilist_detail::node_parent_access< NodeTy, ParentTy >::getParent(), llvm::BasicBlock::getParent(), llvm::Value::getType(), II, and isTerminator().
Get the metadata of given kind attached to this Instruction.
If the metadata is not found then return null.
Definition at line 390 of file Instruction.h.
Get the metadata of given kind attached to this Instruction.
If the metadata is not found then return null.
Definition at line 381 of file Instruction.h.
References llvm::DebugLoc::getAsMDNode().
Referenced by AddAliasScopeMetadata(), addAnnotationMetadata(), addBasicBlockMetadata(), llvm::LoopVersioning::annotateInstWithNoAlias(), llvm::changeToInvokeAndSplitBasicBlock(), llvm::combineMetadata(), convertMetadataToAssumes(), llvm::DbgVariableRecord::createLinkedDVRAssign(), llvm::IRBuilderBase::CreateSelect(), llvm::diagnoseDontCall(), emitDbgAssign(), llvm::InstCombinerImpl::foldPHIArgLoadIntoPHI(), foldTwoEntryPHINode(), llvm::at::getAssignmentMarkers(), getBranchWeights(), llvm::at::getDVRAssignmentMarkers(), getFromRangeMetadata(), llvm::BasicBlock::getIrrLoopHeaderWeight(), llvm::Loop::getLoopID(), llvm::MDNode::getMergedProfMetadata(), llvm::ScopedNoAliasAAResult::getModRefInfo(), llvm::TypeBasedAAResult::getModRefInfo(), hasOnlyUniformBranches(), llvm::DIBuilder::insertDbgAssign(), insertUniqueBackedgeBlock(), llvm::intersectAccessGroups(), isProfitableToSpeculate(), llvm::CallLowering::lowerCall(), llvm::FastISel::lowerCallTo(), llvm::makeGuardControlFlowExplicit(), llvm::mayHaveValueProfileOfKind(), mergeDIAssignID(), migrateDebugInfo(), llvm::LoopStructure::parseLoopStructure(), performBranchToCommonDestFolding(), PropagateCallSiteMetadata(), propagateMemProfHelper(), propagateMemProfMetadata(), llvm::propagateMetadata(), shouldFoldCondBranchesToCommonDestination(), SimplifyCondBranchToCondBranch(), SplitBlockPredecessorsImpl(), turnGuardIntoBranch(), and unswitchNontrivialInvariants().
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Definition at line 178 of file Instruction.h.
Return the module owning the function this instruction belongs to or nullptr it the function does not have a module.
Note: this is undefined behavior if the instruction does not have a parent, or the parent basic block does not have a parent function.
Definition at line 66 of file Instruction.cpp.
References llvm::ilist_detail::node_parent_access< NodeTy, ParentTy >::getParent().
Referenced by addAssumeNonNull(), addMappingsFromTLI(), addVariantDeclaration(), llvm::buildAssumeFromKnowledge(), cloneInstructionsIntoPredecessorBlockAndUpdateSSAUses(), createCoroSave(), CreateGCRelocates(), createTblForTrunc(), llvm::LoongArchTargetLowering::emitMaskedAtomicCmpXchgIntrinsic(), llvm::RISCVTargetLowering::emitMaskedAtomicCmpXchgIntrinsic(), llvm::LoongArchTargetLowering::emitMaskedAtomicRMWIntrinsic(), llvm::RISCVTargetLowering::emitMaskedAtomicRMWIntrinsic(), llvm::AMDGPULibCalls::fold(), foldShuffleOfUnaryOps(), llvm::InstCombinerImpl::foldVectorBinop(), llvm::SCEVExpander::generateOverflowCheck(), getDataLayout(), llvm::LazyValueInfo::getPredicateAt(), llvm::InstrProfIncrementInst::getStep(), llvm::VFABI::getVectorVariantNames(), inlineRetainOrClaimRVCalls(), llvm::DIBuilder::insertDbgAssign(), insertSpills(), llvm::TargetLibraryInfoImpl::isCallingConvCCompatible(), llvm::AArch64TargetLowering::lowerDeinterleaveIntrinsicToLoad(), llvm::RISCVTargetLowering::lowerDeinterleaveIntrinsicToLoad(), lowerFunnelShifts(), llvm::AArch64TargetLowering::lowerInterleavedLoad(), llvm::ARMTargetLowering::lowerInterleavedLoad(), llvm::RISCVTargetLowering::lowerInterleavedLoad(), llvm::IntrinsicLowering::LowerToByteSwap(), lowerUMulWithOverflow(), migrateDebugInfo(), modifyIntrinsicCall(), llvm::LibCallSimplifier::optimizeCall(), optimizeDoubleFP(), promoteSingleBlockAlloca(), ReplaceCallWith(), rewriteSingleStoreAlloca(), llvm::LoopVectorizationCostModel::setVectorizedCallDecision(), llvm::VFABI::setVectorVariantNames(), llvm::simplifyRetainedKnowledge(), tryToReplaceWithGEPBuiltin(), upgradeAbs(), upgradeAVX512MaskToSelect(), llvm::UpgradeIntrinsicCall(), upgradeX86BinaryIntrinsics(), upgradeX86ConcatShift(), upgradeX86IntrinsicCall(), upgradeX86MaskedShift(), upgradeX86Rotate(), upgradeX86VPERMT2Intrinsics(), llvm::AMDGPULibCalls::useNative(), llvm::InstCombinerImpl::visitBitCast(), llvm::InstCombinerImpl::visitCallInst(), and llvm::InstCombinerImpl::visitFPTrunc().
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Definition at line 852 of file Instruction.h.
const Instruction * 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.
Skip any pseudo operations if SkipPseudoOp
is true.
Definition at line 1164 of file Instruction.cpp.
References llvm::ilist_node_with_parent< Instruction, BasicBlock, ilist_iterator_bits< true >, ilist_parent< BasicBlock > >::getNextNode(), and I.
Referenced by findStoresToUninstrumentedArgAllocas(), getStableDebugLoc(), isPotentiallyReachable(), RemovePreallocated(), rewriteDebugUsers(), llvm::OutlinableRegion::splitCandidate(), llvm::InstCombinerImpl::visitCallInst(), and llvm::InstCombinerImpl::visitFenceInst().
unsigned Instruction::getNumSuccessors | ( | ) | const |
Return the number of successors that this instruction has.
The instruction must be a terminator.
Definition at line 1210 of file Instruction.cpp.
References getOpcode(), and llvm_unreachable.
Referenced by llvm::BranchProbabilityInfo::calculate(), llvm::FunctionComparator::compare(), llvm::deleteDeadLoop(), getBestDestForJumpOnUndef(), getBranchHint(), llvm::DOTGraphTraits< DOTFuncInfo * >::getEdgeAttributes(), getInstrBB(), llvm::MustBeExecutedContextExplorer::getMustBeExecutedNextInstruction(), llvm::RegionTraits< Function >::getNumSuccessors(), llvm::isCriticalEdge(), llvm::SparseSolver< LatticeKey, LatticeVal, KeyInfo >::isEdgeFeasible(), isSafePHIToSpeculate(), llvm::JumpThreadingPass::maybeMergeBasicBlockIntoOnlyPred(), llvm::JumpThreadingPass::processBlock(), llvm::JumpThreadingPass::processThreadableEdges(), replaceConstantExprOp(), replaceSuccessorWith(), llvm::JumpThreadingPass::simplifyPartiallyRedundantLoad(), skipPGOUse(), llvm::SplitAllCriticalEdges(), llvm::SplitCriticalEdge(), llvm::SplitEdge(), llvm::SplitKnownCriticalEdge(), llvm::JumpThreadingPass::threadEdge(), llvm::JumpThreadingPass::threadThroughTwoBasicBlocks(), and llvm::JumpThreadingPass::tryToUnfoldSelectInCurrBB().
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Returns a member of one of the enums like Instruction::Add.
Definition at line 274 of file Instruction.h.
Referenced by llvm::LanaiInstrInfo::analyzeBranch(), canEvaluateShiftedShift(), canPHITrans(), llvm::SCEVExpander::canReuseFlagsFromOriginalIVInc(), checkIfSafeAddSequence(), clone(), llvm::InstCombinerImpl::convertOrOfShiftsToFunnelShift(), llvm::CallBase::Create(), detectPopcountIdiom(), detectShiftUntilLessThanIdiom(), detectShiftUntilZeroIdiom(), doesInTreeUserNeedToExtract(), dropPoisonGeneratingFlags(), expandFPToI(), expandIToFP(), extractProfTotalWeight(), llvm::RISCVTargetLowering::fallBackToDAGISel(), findDemandedEltsBySingleUser(), findIBRPredecessor(), foldFPtoI(), llvm::InstCombinerImpl::foldICmpInstWithConstantNotInt(), llvm::InstCombinerImpl::foldICmpUsingBoolRange(), llvm::InstCombinerImpl::foldMultiplicationOverflowCheck(), llvm::InstCombinerImpl::foldPHIArgBinOpIntoPHI(), llvm::InstCombinerImpl::foldSelectOpOp(), foldShiftIntoShiftInAnotherHandOfAndInICmp(), foldSignedTruncationCheck(), llvm::InstCombinerImpl::foldVariableSignZeroExtensionOfVariableHighBitExtract(), getAccessType(), getExtractIndex(), getFromRangeMetadata(), getHashValueImpl(), llvm::SCEVExpander::getIVIncOperand(), getLoopPhiForCounter(), llvm::CallBase::getNumSubclassExtraOperands(), llvm::CallBase::getNumSubclassExtraOperandsDynamic(), getNumSuccessors(), llvm::UnaryOperator::getOpcode(), llvm::BinaryOperator::getOpcode(), llvm::CastInst::getOpcode(), llvm::CmpInst::getOpcode(), llvm::SelectInst::getOpcode(), llvm::VPReplicateRecipe::getOpcode(), llvm::MemoryLocation::getOrNone(), llvm::LoopVectorizationCostModel::getReductionPatternCost(), getSuccessor(), hasAtomicLoad(), hasAtomicStore(), hashCallInst(), hasSameSpecialState(), llvm::InlineFunction(), isAlternateInstruction(), isAssociative(), isAtomic(), isCommutative(), isEqualImpl(), llvm::AArch64TTIImpl::isExtPartOfAvgExpr(), llvm::SystemZTTIImpl::isFoldableLoad(), isHighCostExpansion(), isIdenticalToWhenDefined(), isMatchingStore(), isPromotedInstructionLegal(), isReturnNonNull(), llvm::isSafeToSpeculativelyExecute(), llvm::isSafeToSpeculativelyExecuteWithOpcode(), isSameOperationAs(), isVolatile(), matchExpandedRem(), mayReadFromMemory(), mayThrow(), mayWriteToMemory(), llvm::InstModificationIRStrategy::mutate(), needsFP(), NegateValue(), performBlockTailMerging(), llvm::BasicTTIImplBase< T >::preferToKeepConstantsAttached(), llvm::JumpThreadingPass::processBlock(), promoteAllocaUserToVector(), llvm::InstCombinerImpl::reassociateShiftAmtsOfTwoSameDirectionShifts(), llvm::refineInstruction(), llvm::LanaiInstrInfo::removeBranch(), llvm::replaceSignedInst(), setSuccessor(), llvm::AArch64TargetLowering::shouldSinkOperands(), llvm::ARMTargetLowering::shouldSinkOperands(), llvm::InstCombinerImpl::simplifyShrShlDemandedBits(), SinkShiftAndTruncate(), llvm::InstCombinerImpl::SliceUpIllegalIntegerPHI(), llvm::VPRecipeBuilder::tryToCreateWidenRecipe(), llvm::InstCombinerImpl::visitCallInst(), llvm::InstCombinerImpl::visitFCmpInst(), and llvm::InstCombinerImpl::visitICmpInst().
Definition at line 276 of file Instruction.h.
References getOpcode(), and getOpcodeName().
Referenced by checkInstructions(), llvm::LoopVectorizationPlanner::emitInvalidCostRemarks(), llvm::VPWidenRecipe::execute(), llvm::ConstantExpr::getOpcodeName(), getOpcodeName(), llvm::VPInstruction::print(), llvm::VPWidenRecipe::print(), llvm::VPWidenCastRecipe::print(), llvm::VPScalarCastRecipe::print(), llvm::VPReductionRecipe::print(), llvm::VPReductionEVLRecipe::print(), llvm::VPReplicateRecipe::print(), and PrintOps().
Definition at line 700 of file Instruction.cpp.
References llvm::Add, llvm::And, llvm::FAdd, llvm::FMul, llvm::Mul, llvm::Or, PHI, Select, and llvm::Xor.
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Definition at line 863 of file Instruction.h.
const Instruction * 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.
Skip any pseudo operations if SkipPseudoOp
is true.
Definition at line 1172 of file Instruction.cpp.
References llvm::ilist_node_with_parent< Instruction, BasicBlock, ilist_iterator_bits< true >, ilist_parent< BasicBlock > >::getPrevNode(), and I.
Referenced by findDominatingValue(), InsertStackProtectors(), and llvm::InstCombinerImpl::visitFenceInst().
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.
Definition at line 1179 of file Instruction.cpp.
References getDebugLoc(), and getNextNonDebugInstruction().
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Definition at line 1014 of file Instruction.h.
BasicBlock * Instruction::getSuccessor | ( | unsigned | Idx | ) | const |
Return the specified successor. This instruction must be a terminator.
Definition at line 1222 of file Instruction.cpp.
References getOpcode(), and llvm_unreachable.
Referenced by llvm::FunctionComparator::compare(), llvm::OpenMPIRBuilder::createSection(), findLoopComponents(), getBestDestForJumpOnUndef(), getBranchHint(), llvm::DOTGraphTraits< DOTFuncInfo * >::getEdgeAttributes(), llvm::MustBeExecutedContextExplorer::getMustBeExecutedNextInstruction(), getOnlyLiveSuccessor(), llvm::isCriticalEdge(), llvm::SparseSolver< LatticeKey, LatticeVal, KeyInfo >::isEdgeFeasible(), llvm::InstCombinerImpl::mergeStoreIntoSuccessor(), optimizeSQRT(), llvm::JumpThreadingPass::processBlock(), replaceSuccessorWith(), scalarizeMaskedCompressStore(), scalarizeMaskedExpandLoad(), scalarizeMaskedGather(), scalarizeMaskedLoad(), scalarizeMaskedScatter(), scalarizeMaskedStore(), scalarizeMaskedVectorHistogram(), llvm::SplitCriticalEdge(), llvm::SplitKnownCriticalEdge(), llvm::JumpThreadingPass::threadEdge(), llvm::JumpThreadingPass::threadThroughTwoBasicBlocks(), and llvm::UnrollAndJamLoop().
void Instruction::handleMarkerRemoval | ( | ) |
Handle the debug-info implications of this instruction being removed.
Any attached DbgRecords need to "fall" down onto the next instruction.
Definition at line 85 of file Instruction.cpp.
References DebugMarker, llvm::ilist_detail::node_parent_access< NodeTy, ParentTy >::getParent(), and llvm::DbgMarker::removeMarker().
Referenced by eraseFromParent(), and removeFromParent().
bool Instruction::hasAllowContract | ( | ) | const |
Determine whether the allow-contract flag is set.
Definition at line 600 of file Instruction.cpp.
References assert().
Referenced by llvm::GCNTTIImpl::getArithmeticInstrCost(), and llvm::InstModificationIRStrategy::mutate().
bool Instruction::hasAllowReassoc | ( | ) | const |
Determine whether the allow-reassociation flag is set.
Definition at line 575 of file Instruction.cpp.
References assert().
Referenced by llvm::InductionDescriptor::getExactFPMathInst(), and llvm::InstModificationIRStrategy::mutate().
bool Instruction::hasAllowReciprocal | ( | ) | const |
Determine whether the allow-reciprocal flag is set.
Definition at line 595 of file Instruction.cpp.
References assert().
Referenced by llvm::InstModificationIRStrategy::mutate().
bool Instruction::hasApproxFunc | ( | ) | const |
Determine whether the approximate-math-functions flag is set.
Definition at line 605 of file Instruction.cpp.
References assert().
Referenced by llvm::GCNTTIImpl::getArithmeticInstrCost(), and llvm::InstModificationIRStrategy::mutate().
bool Instruction::hasAtomicLoad | ( | ) | const |
Return true if this atomic instruction loads from memory.
Definition at line 984 of file Instruction.cpp.
References assert(), getOpcode(), and isAtomic().
Referenced by llvm::PPCTargetLowering::emitTrailingFence().
bool Instruction::hasAtomicStore | ( | ) | const |
Return true if this atomic instruction stores to memory.
Definition at line 996 of file Instruction.cpp.
References assert(), getOpcode(), and isAtomic().
Referenced by llvm::TargetLoweringBase::emitLeadingFence(), llvm::ARMTargetLowering::emitLeadingFence(), and llvm::VETargetLowering::emitLeadingFence().
bool Instruction::hasDbgRecords | ( | ) | const |
Returns true if any DbgRecords are attached to this instruction.
Definition at line 264 of file Instruction.cpp.
References getDbgRecordRange().
Referenced by getNextNode().
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Return true if this instruction has any metadata attached to it.
Definition at line 363 of file Instruction.h.
Referenced by atomicIgnoresDenormalModeOrFPModeIsFTZ(), collectFrameAlloca(), convertMetadataToAssumes(), copyMetadata(), doPromotion(), llvm::MemoryDependenceResults::getInvariantGroupPointerDependency(), llvm::TargetLoweringBase::getLoadMemOperandFlags(), llvm::SITargetLowering::getTgtMemIntrinsic(), globalMemoryFPAtomicIsLegal(), hasPoisonGeneratingMetadata(), insertNewDbgInst(), IsAcceptableTarget(), llvm::gvn::AvailableValue::MaterializeAdjustedValue(), setMetadata(), and updateMemprofMetadata().
Return true if this instruction has the given type of metadata attached.
Definition at line 375 of file Instruction.h.
Return true if this instruction has the given type of metadata attached.
Definition at line 370 of file Instruction.h.
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Return true if this instruction has metadata attached to it other than a debug location.
Definition at line 367 of file Instruction.h.
bool Instruction::hasNoInfs | ( | ) | const |
Determine whether the no-infs flag is set.
Definition at line 585 of file Instruction.cpp.
References assert().
Referenced by foldFCmpFSubIntoFCmp(), foldFCmpReciprocalAndZero(), and llvm::InstModificationIRStrategy::mutate().
bool Instruction::hasNoNaNs | ( | ) | const |
Determine whether the no-NaNs flag is set.
Definition at line 580 of file Instruction.cpp.
References assert().
Referenced by foldFCmpFSubIntoFCmp(), and llvm::InstModificationIRStrategy::mutate().
bool Instruction::hasNonNeg | ( | ) | const |
Determine whether the the nneg flag is set.
Definition at line 401 of file Instruction.cpp.
References assert(), llvm::PossiblyNonNegInst::NonNeg, and llvm::Value::SubclassOptionalData.
Referenced by andIRFlags(), llvm::refineInstruction(), llvm::InstCombinerImpl::visitUIToFP(), and llvm::InstCombinerImpl::visitZExt().
bool Instruction::hasNoSignedWrap | ( | ) | const |
Determine whether the no signed wrap flag is set.
Definition at line 394 of file Instruction.cpp.
Referenced by andIRFlags(), buildNew(), checkNoWrapFlags(), llvm::InstCombinerImpl::commonIDivTransforms(), detectShiftUntilZeroIdiom(), llvm::InstCombinerImpl::foldICmpBinOp(), llvm::InstCombinerImpl::foldICmpShlConstant(), llvm::InstCombinerImpl::foldICmpSubConstant(), foldMulShl1(), llvm::InstCombinerImpl::FoldShiftByConstant(), isNonZeroRecurrence(), llvm::InstModificationIRStrategy::mutate(), processBinOp(), llvm::InstCombinerImpl::reassociateShiftAmtsOfTwoSameDirectionShifts(), llvm::refineInstruction(), setLimitsForBinOp(), and llvm::InstCombinerImpl::simplifyShrShlDemandedBits().
bool Instruction::hasNoSignedZeros | ( | ) | const |
Determine whether the no-signed-zeros flag is set.
Definition at line 590 of file Instruction.cpp.
References assert().
Referenced by foldSelectBinOpIdentity(), llvm::InstModificationIRStrategy::mutate(), and simplifySelectWithFCmp().
bool Instruction::hasNoUnsignedWrap | ( | ) | const |
Determine whether the no unsigned wrap flag is set.
Definition at line 387 of file Instruction.cpp.
Referenced by andIRFlags(), buildNew(), checkNoWrapFlags(), detectShiftUntilZeroIdiom(), llvm::InstCombinerImpl::foldICmpBinOp(), llvm::InstCombinerImpl::foldICmpShlConstant(), llvm::InstCombinerImpl::foldICmpSubConstant(), foldMulShl1(), llvm::InstCombinerImpl::FoldShiftByConstant(), isNonZeroRecurrence(), llvm::InstModificationIRStrategy::mutate(), processBinOp(), llvm::InstCombinerImpl::reassociateShiftAmtsOfTwoSameDirectionShifts(), llvm::refineInstruction(), llvm::InstCombinerImpl::simplifyShrShlDemandedBits(), and llvm::InstCombinerImpl::visitSub().
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Return true if this instruction has poison-generating flags, return attributes or metadata.
Definition at line 519 of file Instruction.h.
bool Instruction::hasPoisonGeneratingFlags | ( | ) | const |
Return true if this operator has flags which may cause this instruction to evaluate to poison despite having non-poison inputs.
Definition at line 406 of file Instruction.cpp.
Referenced by canFoldTermCondOfLoop(), and dropPoisonGeneratingFlags().
bool Instruction::hasPoisonGeneratingMetadata | ( | ) | const |
Return true if this instruction has poison-generating metadata.
Definition at line 454 of file Instruction.cpp.
References hasMetadata().
bool Instruction::hasPoisonGeneratingReturnAttributes | ( | ) | const |
Return true if this instruction has poison-generating attribute.
Definition at line 466 of file Instruction.cpp.
References llvm::AttributeSet::hasAttribute().
Referenced by dropPoisonGeneratingReturnAttributes().
bool Instruction::hasSameSpecialState | ( | const Instruction * | I2, |
bool | IgnoreAlignment = false |
||
) | const |
This function determines if the speficied instruction has the same "special" characteristics as the current one.
This must be kept in sync with FunctionComparator::cmpOperations in lib/Transforms/IPO/MergeFunctions.cpp.
This means that opcode specific details are the same. As a common example, if we are comparing loads, then hasSameSpecialState would compare the alignments (among other things).
Definition at line 787 of file Instruction.cpp.
References assert(), GEP, and getOpcode().
Referenced by isIdenticalToWhenDefined(), and isSameOperationAs().
void Instruction::insertAfter | ( | Instruction * | InsertPos | ) |
Insert an unlinked instruction into a basic block immediately after the specified instruction.
Definition at line 109 of file Instruction.cpp.
References llvm::ilist_node_impl< OptionsT >::getIterator(), llvm::ilist_detail::node_parent_access< NodeTy, ParentTy >::getParent(), and llvm::iplist_impl< IntrusiveListT, TraitsT >::insertAfter().
Referenced by addAssumeNonNull(), llvm::OpenMPIRBuilder::createParallel(), DbgInserterHelper(), optimizeDivRem(), and rewritePHIsForCleanupPad().
void Instruction::insertBefore | ( | BasicBlock & | BB, |
InstListType::iterator | InsertPos | ||
) |
Definition at line 126 of file Instruction.cpp.
References adoptDbgRecords(), assert(), DebugMarker, llvm::DbgMarker::empty(), llvm::BasicBlock::getMarker(), llvm::ilist_detail::node_parent_access< NodeTy, ParentTy >::getParent(), llvm::iplist_impl< IntrusiveListT, TraitsT >::insert(), llvm::BasicBlock::IsNewDbgInfoFormat, and isTerminator().
void Instruction::insertBefore | ( | InstListType::iterator | InsertPos | ) |
Insert an unlinked instruction into a basic block immediately before the specified instruction.
Definition at line 103 of file Instruction.cpp.
References insertBefore().
void Instruction::insertBefore | ( | Instruction * | InsertPos | ) |
Insert an unlinked instruction into a basic block immediately before the specified instruction.
Definition at line 97 of file Instruction.cpp.
References llvm::ilist_node_impl< OptionsT >::getIterator(), and insertBefore().
Referenced by llvm::changeToCall(), llvm::CloneBasicBlock(), cloneInstructionInExitBlock(), CloneLoopBlocks(), ConnectEpilog(), ConnectProlog(), llvm::DbgVariableRecord::createDebugIntrinsic(), llvm::EpilogueVectorizerEpilogueLoop::createEpilogueVectorizedLoopSkeleton(), llvm::createPHIsForSplitLoopExit(), DbgInserterHelper(), llvm::VPWidenIntOrFpInductionRecipe::execute(), llvm::VPFirstOrderRecurrencePHIRecipe::execute(), llvm::VPReductionPHIRecipe::execute(), llvm::VPCanonicalIVPHIRecipe::execute(), llvm::expandUser(), findBasePointer(), findOrCreatePHIInBlock(), formLCSSAForInstructionsImpl(), generateReproducer(), llvm::SSAUpdater::GetValueInMiddleOfBlock(), HandleByValArgument(), insertBefore(), insertInto(), insertLifetimeMarkersSurroundingCall(), llvm::BPFCoreSharedInfo::insertPassThrough(), insertTrivialPHIs(), moveLCSSAPhis(), movePHIValuesToInsertedBlock(), OptimizeExtractBits(), rematerializeChain(), replaceConstantExprOp(), rewriteMaterializableInstructions(), rewritePHIs(), llvm::JumpThreadingPass::simplifyPartiallyRedundantLoad(), SinkCast(), sinkCmpExpression(), sinkInstruction(), SinkShiftAndTruncate(), splitCallSite(), llvm::SplitIndirectBrCriticalEdges(), llvm::JumpThreadingPass::threadGuard(), tryToReplaceWithGEPBuiltin(), llvm::UnrollRuntimeLoopRemainder(), and versionCallSiteWithCond().
BasicBlock::iterator Instruction::insertInto | ( | BasicBlock * | ParentBB, |
InstListType::iterator | It | ||
) |
Inserts an unlinked instruction into ParentBB
at position It
and returns the iterator of the inserted instruction.
Definition at line 115 of file Instruction.cpp.
References assert(), llvm::BasicBlock::end(), llvm::ilist_node_impl< ilist_detail::compute_node_options< T, Options... >::type >::getIterator(), llvm::ilist_detail::node_parent_access< NodeTy, ParentTy >::getParent(), and insertBefore().
Referenced by buildPartialInvariantUnswitchConditionalBranch(), cloneInstructionsIntoPredecessorBlockAndUpdateSSAUses(), createWrapper(), llvm::FoldReturnIntoUncondBranch(), Instruction(), mergeCompatibleInvokesImpl(), performBlockTailMerging(), replaceArgumentUses(), SplitLandingPadPredecessorsImpl(), llvm::JumpThreadingPass::unfoldSelectInstr(), unswitchNontrivialInvariants(), and unswitchTrivialBranch().
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Return true if this is an arithmetic shift right.
Definition at line 318 of file Instruction.h.
References getOpcode().
Referenced by llvm::InstCombinerImpl::foldICmpAndShift().
bool Instruction::isAssociative | ( | ) | const |
Return true if the instruction is associative:
Associative operators satisfy: x op (y op z) === (x op y) op z
In LLVM, the Add, Mul, And, Or, and Xor operators are associative.
Definition at line 1186 of file Instruction.cpp.
References llvm::FAdd, llvm::FMul, getOpcode(), II, and isAssociative().
Referenced by llvm::ConstantFoldBinaryInstruction(), llvm::InstCombinerImpl::foldVectorBinop(), isAssociative(), and simplifyAssociativeBinOp().
bool Instruction::isAtomic | ( | ) | const |
Return true if this instruction has an AtomicOrdering of unordered or higher.
Definition at line 969 of file Instruction.cpp.
References getOpcode(), and llvm::NotAtomic.
Referenced by llvm::InstCombinerImpl::foldPHIArgLoadIntoPHI(), hasAtomicLoad(), hasAtomicStore(), llvm::LoadInst::isSimple(), llvm::StoreInst::isSimple(), and llvm::JumpThreadingPass::simplifyPartiallyRedundantLoad().
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Definition at line 279 of file Instruction.h.
References getOpcode(), and isBinaryOp().
Referenced by llvm::ConstantRange::binaryOp(), canCreateUndefOrPoison(), llvm::BinaryConstantExpr::classof(), llvm::ConstantFoldBinaryInstruction(), llvm::ConstantFoldBinaryOpOperands(), llvm::ConstantFoldFPInstOperands(), llvm::IRBuilderBase::CreateNAryOp(), llvm::ConstantExpr::get(), llvm::ConstantExpr::getBinOpIdentity(), isBinaryOp(), isConstExprSupported(), llvm::isSafeToSpeculativelyExecuteWithOpcode(), llvm::ConstantRange::makeGuaranteedNoWrapRegion(), llvm::VPInstruction::onlyFirstLaneUsed(), llvm::VPInstruction::onlyFirstPartUsed(), and llvm::ConstantRange::overflowingBinaryOp().
Definition at line 299 of file Instruction.h.
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Return true if this is and/or/xor.
Definition at line 328 of file Instruction.h.
References getOpcode().
Referenced by llvm::InstCombinerImpl::foldBinOpShiftWithShift(), getBinOpsForFactorization(), llvm::PatternMatch::is_bitwiselogic_op::isOpType(), and rightDistributesOverLeft().
Determine if the Opcode is and/or/xor.
Definition at line 323 of file Instruction.h.
References llvm::And, llvm::Or, and llvm::Xor.
Referenced by foldBitCastBitwiseLogic(), and simplifyAssocCastAssoc().
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Definition at line 282 of file Instruction.h.
References getOpcode(), and isCast().
Referenced by llvm::CastConstantExpr::classof(), llvm::ConstantFoldCastOperand(), llvm::ConstantExprKeyType::create(), llvm::InstCombinerImpl::foldSelectOpOp(), llvm::ConstantExpr::getCast(), llvm::ConstantExpr::isCast(), isCast(), and isConstExprSupported().
Determine if the Opcode is one of the CastInst instructions.
Definition at line 333 of file Instruction.h.
bool Instruction::isCommutative | ( | ) | const |
Return true if the instruction is commutative:
Commutative operators satisfy: (x op y) === (y op x)
In LLVM, these are the commutative operators, plus SetEQ and SetNE, when applied to any type.
Definition at line 1203 of file Instruction.cpp.
References getOpcode(), II, and isCommutative().
Referenced by llvm::RecurrenceDescriptor::AddReductionVar(), areCommutative(), llvm::ConstantFoldBinaryInstruction(), expandBinOp(), foldOrCommuteConstant(), foldSelectBinOpIdentity(), llvm::InstCombinerImpl::foldSelectOpOp(), llvm::InstCombinerImpl::foldVectorBinop(), llvm::ConstantExpr::getBinOpIdentity(), llvm::RISCVTTIImpl::getIntImmCostInst(), isCommutative(), matchStridedStart(), rightDistributesOverLeft(), simplifyAssociativeBinOp(), llvm::InstCombinerImpl::SimplifyDemandedVectorElts(), llvm::BinaryOperator::swapOperands(), tryFactorization(), and llvm::InstCombinerImpl::visitShl().
Definition at line 711 of file Instruction.h.
References llvm::And, llvm::FAdd, llvm::FMul, Mul, llvm::Or, and llvm::Xor.
bool Instruction::isDebugOrPseudoInst | ( | ) | const |
Return true if the instruction is a DbgInfoIntrinsic or PseudoProbeInst.
Definition at line 1159 of file Instruction.cpp.
Referenced by llvm::findAvailablePtrLoadStore(), and ProcessBlock().
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Return true if the instruction is a variety of EH-block.
Definition at line 824 of file Instruction.h.
References getOpcode().
Referenced by llvm::BasicBlock::canSplitPredecessors(), canSplitPredecessors(), cloneInstructionInExitBlock(), llvm::colorEHFunclets(), llvm::objcarc::createCallInstWithColors(), llvm::ehAwareSplitEdge(), getEHPadFromPredecessor(), HandleInlinedEHPad(), insertDbgVariableRecordsForPHIs(), llvm::insertDebugValuesForPHIs(), llvm::BasicBlock::isEHPad(), isSafeToMove(), isSafeToRemove(), populateEHOperandBundle(), llvm::removeAllNonTerminatorAndEHPadInstructions(), SinkCast(), and llvm::SplitIndirectBrCriticalEdges().
bool Instruction::isExact | ( | ) | const |
Determine whether the exact flag is set.
Definition at line 516 of file Instruction.cpp.
Referenced by andIRFlags(), buildNew(), llvm::InstCombinerImpl::foldICmpBinOp(), llvm::InstCombinerImpl::foldICmpBinOpEqualityWithConstant(), llvm::InstCombinerImpl::foldICmpDivConstant(), llvm::InstCombinerImpl::foldICmpShrConstant(), llvm::InstCombinerImpl::FoldShiftByConstant(), isNonZeroRecurrence(), llvm::InstModificationIRStrategy::mutate(), processAShr(), processSDiv(), llvm::InstCombinerImpl::reassociateShiftAmtsOfTwoSameDirectionShifts(), llvm::replaceSignedInst(), and llvm::InstCombinerImpl::visitMul().
bool Instruction::isFast | ( | ) | const |
Determine whether all fast-math-flags are set.
Definition at line 570 of file Instruction.cpp.
References assert().
Referenced by llvm::LibCallSimplifier::optimizeCall().
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Return true if this instruction behaves like a memory fence: it can load or store to memory location without being given a memory location.
Definition at line 783 of file Instruction.h.
References getOpcode().
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Definition at line 283 of file Instruction.h.
References getOpcode(), and isFuncletPad().
Referenced by isFuncletPad().
Determine if the Opcode is one of the FuncletPadInst instructions.
Definition at line 338 of file Instruction.h.
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Return true if the instruction is idempotent:
Idempotent operators satisfy: x op x === x
In LLVM, the And and Or operators are idempotent.
Definition at line 728 of file Instruction.h.
References getOpcode(), and isIdempotent().
Referenced by isIdempotent().
Definition at line 729 of file Instruction.h.
bool Instruction::isIdenticalTo | ( | const Instruction * | I | ) | const |
Return true if the specified instruction is exactly identical to the current one.
This means that all operands match and any extra information (e.g. load is volatile) agree.
Definition at line 855 of file Instruction.cpp.
References I, isIdenticalToWhenDefined(), and llvm::Value::SubclassOptionalData.
Referenced by tryToMergeLandingPad(), and llvm::InstCombinerImpl::visitFenceInst().
bool Instruction::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.
Definition at line 860 of file Instruction.cpp.
References llvm::PHINode::block_begin(), llvm::User::getNumOperands(), getOpcode(), llvm::Value::getType(), hasSameSpecialState(), I, llvm::User::op_begin(), and llvm::User::op_end().
Referenced by EliminateDuplicatePHINodesNaiveImpl(), isEqualImpl(), and isIdenticalTo().
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Definition at line 280 of file Instruction.h.
References getOpcode(), and isIntDivRem().
Referenced by llvm::ConstantFoldBinaryInstruction(), llvm::InstCombinerImpl::foldSelectShuffle(), foldSelectShuffleWith1Binop(), llvm::InstCombinerImpl::foldVectorBinop(), generateKeySubkey(), isIntDivRem(), isValidForAlternation(), and llvm::InstCombinerImpl::SimplifyDemandedVectorElts().
Definition at line 303 of file Instruction.h.
bool Instruction::isLaunderOrStripInvariantGroup | ( | ) | const |
Return true if the instruction is a llvm.launder.invariant.group or llvm.strip.invariant.group.
Definition at line 1150 of file Instruction.cpp.
References II.
bool Instruction::isLifetimeStartOrEnd | ( | ) | const |
Return true if the instruction is a llvm.lifetime.start or llvm.lifetime.end marker.
Definition at line 1142 of file Instruction.cpp.
References II.
Referenced by llvm::CodeExtractor::findAllocas().
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Return true if this is a logical shift left or a logical shift right.
Definition at line 313 of file Instruction.h.
References getOpcode().
Referenced by canEvaluateShiftedShift(), and canShiftBinOpWithConstantRHS().
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Return true if the instruction is nilpotent:
Nilpotent operators satisfy: x op x === Id,
where Id is the identity for the operator, i.e. a constant such that x op Id === x and Id op x === x for all x.
In LLVM, the Xor operator is nilpotent.
Definition at line 742 of file Instruction.h.
References getOpcode(), and isNilpotent().
Referenced by isNilpotent().
Definition at line 743 of file Instruction.h.
References llvm::Xor.
bool Instruction::isOnlyUserOfAnyOperand | ( | ) |
It checks if this instruction is the only user of at least one of its operands.
Definition at line 359 of file Instruction.cpp.
References llvm::any_of(), and llvm::User::operands().
bool Instruction::isSafeToRemove | ( | ) | const |
Return true if the instruction can be removed if the result is unused.
When constant folding some instructions cannot be removed even if their results are unused. Specifically terminator instructions and calls that may have side effects cannot be removed without semantically changing the generated program.
Definition at line 1127 of file Instruction.cpp.
References isEHPad(), isTerminator(), and mayHaveSideEffects().
bool Instruction::isSameOperationAs | ( | const Instruction * | I, |
unsigned | flags = 0 |
||
) | const |
This function determines if the specified instruction executes the same operation as the current one.
This means that the opcodes, type, operand types and any other factors affecting the operation must be the same. This is similar to isIdenticalTo except the operands themselves don't have to be identical.
Definition at line 887 of file Instruction.cpp.
References CompareIgnoringAlignment, CompareUsingScalarTypes, llvm::User::getNumOperands(), getOpcode(), llvm::User::getOperand(), llvm::Value::getType(), hasSameSpecialState(), and I.
Referenced by llvm::InstCombinerImpl::foldSelectOpOp().
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Definition at line 281 of file Instruction.h.
References getOpcode(), and isShift().
Referenced by detectShiftUntilZeroIdiom(), llvm::InstCombinerImpl::foldICmpAndShift(), llvm::InstCombinerImpl::foldSelectShuffle(), foldSelectShuffleWith1Binop(), llvm::InstCombinerImpl::foldVectorBinop(), llvm::ARMTTIImpl::getArithmeticInstrCost(), llvm::PatternMatch::is_shift_op::isOpType(), isShift(), rightDistributesOverLeft(), and llvm::InstCombinerImpl::SimplifyDemandedVectorElts().
Determine if the Opcode is one of the shift instructions.
Definition at line 308 of file Instruction.h.
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Definition at line 284 of file Instruction.h.
References getOpcode(), and isSpecialTerminator().
Referenced by isSpecialTerminator(), llvm::JumpThreadingPass::maybeMergeBasicBlockIntoOnlyPred(), and llvm::MergeBlockIntoPredecessor().
Returns true if the Opcode is a "special" terminator that does more than branch to a successor (e.g.
have a side effect or return a value).
Definition at line 344 of file Instruction.h.
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Definition at line 277 of file Instruction.h.
References getOpcode(), and isTerminator().
Referenced by CalculateUnswitchCostMultiplier(), findLocationForEntrySafepoint(), getInsertionPointAfterDef(), llvm::MustBeExecutedContextExplorer::getMustBeExecutedNextInstruction(), insertBefore(), llvm::isCriticalEdge(), isRemovableWrite(), isSafeToMove(), isSafeToRemove(), isTerminator(), llvm::InstDeleterIRStrategy::mutate(), llvm::MemoryDependenceResults::removeInstruction(), and llvm::OutlinableRegion::splitCandidate().
Definition at line 292 of file Instruction.h.
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Definition at line 278 of file Instruction.h.
References getOpcode(), and isUnaryOp().
Referenced by llvm::ConstantFoldUnaryInstruction(), llvm::ConstantFoldUnaryOpOperand(), llvm::IRBuilderBase::CreateNAryOp(), llvm::isSafeToSpeculativelyExecuteWithOpcode(), and isUnaryOp().
Definition at line 296 of file Instruction.h.
bool Instruction::isUsedOutsideOfBlock | ( | const BasicBlock * | BB | ) | const |
Return true if there are any uses of this instruction in blocks other than the specified block.
Note that PHI nodes are considered to evaluate their operands in the corresponding predecessor block.
Definition at line 911 of file Instruction.cpp.
References llvm::PHINode::getIncomingBlock(), I, and llvm::Value::uses().
Referenced by removeEmptyCleanup().
bool Instruction::isVolatile | ( | ) | const |
Return true if this instruction has a volatile memory access.
Definition at line 1008 of file Instruction.cpp.
References getOpcode(), II, and MI.
Referenced by llvm::expandAtomicMemCpyAsLoop(), llvm::MemoryDependenceResults::getNonLocalPointerDependency(), and llvm::MemoryDependenceResults::getSimplePointerDependencyFrom().
bool Instruction::mayHaveSideEffects | ( | ) | const |
Return true if the instruction may have side effects.
Side effects are:
Note that this does not consider malloc and alloca to have side effects because the newly allocated memory is completely invisible to instructions which don't use the returned value. For cases where this matters, isSafeToSpeculativelyExecute may be more appropriate.
Definition at line 1123 of file Instruction.cpp.
References mayThrow(), mayWriteToMemory(), and willReturn().
Referenced by canMoveAboveCall(), llvm::deleteDeadLoop(), hasHardUserWithinLoop(), isSafePHIToSpeculate(), isSafeToRemove(), and llvm::MergeBlockIntoPredecessor().
bool Instruction::mayReadFromMemory | ( | ) | const |
Return true if this instruction may read memory.
Definition at line 929 of file Instruction.cpp.
References getOpcode().
Referenced by GetLocation(), IsAcceptableTarget(), llvm::Dependence::isAnti(), llvm::Dependence::isFlow(), and llvm::Dependence::isInput().
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Return true if this instruction may read or write memory.
Definition at line 754 of file Instruction.h.
Referenced by llvm::AliasSetTracker::addUnknown(), llvm::AliasSet::aliasesUnknownInst(), and llvm::intersectAccessGroups().
Return true if this instruction may throw an exception.
If IncludePhaseOneUnwind is set, this will also include cases where phase one unwinding may unwind past this frame due to skipping of cleanup landingpads.
Definition at line 1096 of file Instruction.cpp.
References canUnwindPastLandingPad(), llvm::BasicBlock::getFirstNonPHI(), and getOpcode().
Referenced by isSafeToMove(), and mayHaveSideEffects().
bool Instruction::mayWriteToMemory | ( | ) | const |
Return true if this instruction may modify memory.
Definition at line 949 of file Instruction.cpp.
References getOpcode().
Referenced by llvm::findAvailablePtrLoadStore(), findInitTrampolineFromBB(), GetLocation(), llvm::Dependence::isAnti(), llvm::Dependence::isFlow(), llvm::Dependence::isOutput(), isSafeToMove(), and mayHaveSideEffects().
void Instruction::mergeDIAssignID | ( | ArrayRef< const Instruction * > | SourceInstructions | ) |
Merge the DIAssignID metadata from this instruction and those attached to instructions in SourceInstructions
.
This process performs a RAUW on the MetadataAsValue uses of the merged DIAssignID nodes. Not every instruction in SourceInstructions
needs to have DIAssignID metadata. If none of them do then nothing happens. If this instruction does not have a DIAssignID attachment but at least one in SourceInstructions
does then the merged one will be attached to it. However, instructions without attachments in SourceInstructions
are not modified.
Definition at line 936 of file DebugInfo.cpp.
References assert(), llvm::SmallVectorTemplateCommon< T, typename >::begin(), llvm::SmallVectorBase< Size_T >::empty(), llvm::SmallVectorTemplateCommon< T, typename >::end(), End, getFunction(), getMetadata(), I, llvm::SmallVectorTemplateBase< T, bool >::push_back(), llvm::at::RAUW(), and setMetadata().
Referenced by llvm::InstCombinerImpl::mergeStoreIntoSuccessor().
void Instruction::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.
Definition at line 175 of file Instruction.cpp.
References llvm::ilist_node_impl< OptionsT >::getIterator(), and llvm::ilist_detail::node_parent_access< NodeTy, ParentTy >::getParent().
Referenced by rewriteDebugUsers(), and llvm::slpvectorizer::BoUpSLP::vectorizeTree().
void Instruction::moveAfterPreserving | ( | Instruction * | MovePos | ) |
See moveBeforePreserving .
Definition at line 183 of file Instruction.cpp.
References llvm::ilist_node_impl< OptionsT >::getIterator(), and llvm::ilist_detail::node_parent_access< NodeTy, ParentTy >::getParent().
void Instruction::moveBefore | ( | BasicBlock & | BB, |
InstListType::iterator | I | ||
) |
Unlink this instruction and insert into BB before I.
Definition at line 191 of file Instruction.cpp.
References I.
void Instruction::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.
Definition at line 167 of file Instruction.cpp.
References llvm::ilist_node_impl< OptionsT >::getIterator(), and llvm::ilist_detail::node_parent_access< NodeTy, ParentTy >::getParent().
Referenced by llvm::VPlan::execute(), llvm::CodeExtractor::extractCodeRegion(), llvm::InstCombinerImpl::freezeOtherUses(), NegateValue(), optimizeBranch(), removeEmptyCleanup(), llvm::coro::salvageDebugInfo(), llvm::setWidenableBranchCond(), simplifyRelocatesOffABase(), SinkInstruction(), sinkLastInstruction(), sinkSpillUsesAfterCoroBegin(), turnGuardIntoBranch(), unswitchNontrivialInvariants(), unswitchTrivialBranch(), versionCallSiteWithCond(), llvm::InstCombinerImpl::visitAllocaInst(), llvm::InstCombinerImpl::visitCallInst(), and llvm::widenWidenableBranch().
void Instruction::moveBeforePreserving | ( | BasicBlock & | BB, |
InstListType::iterator | I | ||
) |
(See other overload for moveBeforePreserving).
Definition at line 195 of file Instruction.cpp.
References I.
void Instruction::moveBeforePreserving | ( | Instruction * | MovePos | ) |
Perform a moveBefore operation, while signalling that the caller intends to preserve the original ordering of instructions.
This implicitly means that any adjacent debug-info should move with this instruction. This method is currently a no-op placeholder, but it will become meaningful when the "RemoveDIs" project is enabled.
Definition at line 171 of file Instruction.cpp.
References llvm::ilist_node_impl< OptionsT >::getIterator(), and llvm::ilist_detail::node_parent_access< NodeTy, ParentTy >::getParent().
Referenced by llvm::MergeBlockIntoPredecessor(), and raiseUserConstantDataAllocasToEntryBlock().
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void Instruction::removeFromParent | ( | ) |
This method unlinks 'this' from the containing basic block, but does not delete it.
Definition at line 78 of file Instruction.cpp.
References llvm::ilist_node_impl< ilist_detail::compute_node_options< T, Options... >::type >::getIterator(), llvm::ilist_detail::node_parent_access< NodeTy, ParentTy >::getParent(), and handleMarkerRemoval().
Referenced by DbgInserterHelper(), llvm::InstCombinerImpl::matchBSwapOrBitReverse(), rewritePHIsForCleanupPad(), and llvm::JumpThreadingPass::unfoldSelectInstr().
void Instruction::replaceSuccessorWith | ( | BasicBlock * | OldBB, |
BasicBlock * | NewBB | ||
) |
Replace specified successor OldBB to point at the provided block.
This instruction must be a terminator.
Definition at line 1246 of file Instruction.cpp.
References getNumSuccessors(), getSuccessor(), Idx, and setSuccessor().
Referenced by insertUniqueBackedgeBlock(), and llvm::BasicBlock::splitBasicBlockBefore().
Sets the AA metadata on this instruction from the AAMDNodes structure.
Definition at line 1727 of file Metadata.cpp.
References N, and setMetadata().
Referenced by doPromotion(), foldConsecutiveLoads(), llvm::InstCombinerImpl::mergeStoreIntoSuccessor(), llvm::promoteLoopAccessesToScalars(), llvm::InstCombinerImpl::SimplifyAnyMemTransfer(), llvm::JumpThreadingPass::simplifyPartiallyRedundantLoad(), speculateSelectInstLoads(), unpackLoadToAggregate(), and unpackStoreToAggregate().
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Set the debug location information for this instruction.
Definition at line 463 of file Instruction.h.
Referenced by addBoundsChecking(), applyMergedLocation(), buildClonedLoopBlocks(), cloneInstructionsIntoPredecessorBlockAndUpdateSSAUses(), copyMetadata(), llvm::createCallMatchingInvoke(), llvm::DbgVariableRecord::createDebugIntrinsic(), createFFSIntrinsic(), llvm::InnerLoopVectorizer::createInductionResumeValue(), createPopcntIntrinsic(), llvm::OpenMPIRBuilder::createTask(), DoFlattenLoopPair(), dropLocation(), llvm::OpenMPIRBuilder::emitTargetTask(), llvm::VPWidenIntOrFpInductionRecipe::execute(), llvm::VPCanonicalIVPHIRecipe::execute(), llvm::VPActiveLaneMaskPHIRecipe::execute(), llvm::VPEVLBasedIVPHIRecipe::execute(), fixupDebugInfoPostExtraction(), foldCondBranchOnValueKnownInPredecessorImpl(), llvm::InstCombinerImpl::foldOpIntoPhi(), formLCSSAForInstructionsImpl(), generateReproducer(), llvm::SSAUpdater::GetValueInMiddleOfBlock(), HandleByValArgumentInit(), INITIALIZE_PASS(), llvm::InlineFunction(), insertCall(), insertUniqueBackedgeBlock(), llvm::AMDGPU::instrumentAddress(), LowerNegateToMultiply(), llvm::InstCombinerImpl::mergeStoreIntoSuccessor(), optimizeDivRem(), OptimizeExtractBits(), performBlockTailMerging(), llvm::InstCombinerImpl::PHIArgMergedDebugLoc(), llvm::JumpThreadingPass::processBlock(), llvm::JumpThreadingPass::processImpliedCondition(), processSaturatingInst(), llvm::JumpThreadingPass::processThreadableEdges(), llvm::promoteLoopAccessesToScalars(), llvm::SCCPSolver::removeNonFeasibleEdges(), llvm::removeUnwindEdge(), replaceArgumentUses(), replaceConditionalBranchesOnConstant(), llvm::replaceSignedInst(), llvm::coro::salvageDebugInfo(), llvm::setProbeDistributionFactor(), llvm::JumpThreadingPass::simplifyPartiallyRedundantLoad(), sinkAndCmp0Expression(), sinkCmpExpression(), SinkShiftAndTruncate(), llvm::BasicBlock::splitBasicBlock(), llvm::BasicBlock::splitBasicBlockBefore(), llvm::SplitBlockAndInsertIfThenElse(), SplitBlockPredecessorsImpl(), splitCallSite(), llvm::SplitKnownCriticalEdge(), SplitLandingPadPredecessorsImpl(), llvm::splitLoopBound(), llvm::JumpThreadingPass::threadEdge(), llvm::JumpThreadingPass::threadGuard(), tryToShorten(), TryToShrinkGlobalToBoolean(), llvm::JumpThreadingPass::tryToUnfoldSelectInCurrBB(), llvm::UnrollRuntimeLoopRemainder(), unswitchNontrivialInvariants(), unswitchTrivialBranch(), unswitchTrivialSwitch(), and updateForIncomingValueLocation().
void Instruction::setFast | ( | bool | B | ) |
Set or clear all fast-math-flags on this instruction, which must be an operator which supports this flag.
See LangRef.html for the meaning of this flag.
Definition at line 520 of file Instruction.cpp.
Referenced by llvm::InstModificationIRStrategy::mutate().
void Instruction::setFastMathFlags | ( | FastMathFlags | FMF | ) |
Convenience function for setting multiple fast-math flags on this instruction, which must be an operator which supports these flags.
See LangRef.html for the meaning of these flags.
Definition at line 560 of file Instruction.cpp.
References assert().
Referenced by CreateAdd(), CreateMul(), llvm::BinaryOperator::CreateWithFMF(), llvm::InstCombinerImpl::foldSelectOpOp(), foldShuffleOfUnaryOps(), llvm::InstCombinerImpl::SimplifyAssociativeOrCommutative(), and llvm::InstCombinerImpl::visitFNeg().
void Instruction::setHasAllowContract | ( | bool | B | ) |
Set or clear the allow-contract flag on this instruction, which must be an operator which supports this flag.
See LangRef.html for the meaning of this flag.
Definition at line 550 of file Instruction.cpp.
Referenced by llvm::InstModificationIRStrategy::mutate().
void Instruction::setHasAllowReassoc | ( | bool | B | ) |
Set or clear the reassociation flag on this instruction, which must be an operator which supports this flag.
See LangRef.html for the meaning of this flag.
Definition at line 525 of file Instruction.cpp.
Referenced by llvm::InstModificationIRStrategy::mutate().
void Instruction::setHasAllowReciprocal | ( | bool | B | ) |
Set or clear the allow-reciprocal flag on this instruction, which must be an operator which supports this flag.
See LangRef.html for the meaning of this flag.
Definition at line 545 of file Instruction.cpp.
Referenced by llvm::InstModificationIRStrategy::mutate().
void Instruction::setHasApproxFunc | ( | bool | B | ) |
Set or clear the approximate-math-functions flag on this instruction, which must be an operator which supports this flag.
See LangRef.html for the meaning of this flag.
Definition at line 555 of file Instruction.cpp.
Referenced by llvm::InstModificationIRStrategy::mutate().
void Instruction::setHasNoInfs | ( | bool | B | ) |
Set or clear the no-infs flag on this instruction, which must be an operator which supports this flag.
See LangRef.html for the meaning of this flag.
Definition at line 535 of file Instruction.cpp.
Referenced by dropPoisonGeneratingFlags(), foldFNegIntoConstant(), and llvm::InstModificationIRStrategy::mutate().
void Instruction::setHasNoNaNs | ( | bool | B | ) |
Set or clear the no-nans flag on this instruction, which must be an operator which supports this flag.
See LangRef.html for the meaning of this flag.
Definition at line 530 of file Instruction.cpp.
Referenced by dropPoisonGeneratingFlags(), and llvm::InstModificationIRStrategy::mutate().
Set or clear the nsw flag on this instruction, which must be an operator which supports this flag.
See LangRef.html for the meaning of this flag.
Definition at line 370 of file Instruction.cpp.
Referenced by andIRFlags(), llvm::InstCombinerImpl::commonShiftTransforms(), copyIRFlags(), llvm::BinaryOperator::CreateNSW(), llvm::InstCombinerImpl::foldAddWithConstant(), foldShiftedShift(), llvm::ConstantExpr::getAsInstruction(), llvm::SCEVExpander::hoistIVInc(), llvm::InstModificationIRStrategy::mutate(), NegateValue(), llvm::InstCombinerImpl::reassociateShiftAmtsOfTwoSameDirectionShifts(), llvm::refineInstruction(), simplifyIRemMulShl(), llvm::InstCombinerImpl::visitMul(), and llvm::InstCombinerImpl::visitSub().
void Instruction::setHasNoSignedZeros | ( | bool | B | ) |
Set or clear the no-signed-zeros flag on this instruction, which must be an operator which supports this flag.
See LangRef.html for the meaning of this flag.
Definition at line 540 of file Instruction.cpp.
Referenced by foldFNegIntoConstant(), llvm::InstModificationIRStrategy::mutate(), and llvm::InstCombinerImpl::visitFNeg().
Set or clear the nuw flag on this instruction, which must be an operator which supports this flag.
See LangRef.html for the meaning of this flag.
Definition at line 363 of file Instruction.cpp.
Referenced by andIRFlags(), llvm::InstCombinerImpl::commonShiftTransforms(), copyIRFlags(), llvm::BinaryOperator::CreateNUW(), llvm::InstCombinerImpl::foldAddWithConstant(), foldShiftedShift(), llvm::ConstantExpr::getAsInstruction(), llvm::SCEVExpander::hoistIVInc(), llvm::InstModificationIRStrategy::mutate(), NegateValue(), llvm::InstCombinerImpl::reassociateShiftAmtsOfTwoSameDirectionShifts(), llvm::refineInstruction(), simplifyIRemMulShl(), llvm::InstCombinerImpl::visitMul(), and llvm::InstCombinerImpl::visitSub().
Set or clear the exact flag on this instruction, which must be an operator which supports this flag.
See LangRef.html for the meaning of this flag.
Definition at line 377 of file Instruction.cpp.
Referenced by andIRFlags(), llvm::InstCombinerImpl::commonIDivTransforms(), llvm::InstCombinerImpl::commonShiftTransforms(), copyIRFlags(), llvm::BinaryOperator::CreateExact(), foldShiftedShift(), llvm::ConstantExpr::getAsInstruction(), llvm::InstModificationIRStrategy::mutate(), llvm::InstCombinerImpl::reassociateShiftAmtsOfTwoSameDirectionShifts(), llvm::replaceSignedInst(), llvm::InstCombinerImpl::SimplifyDemandedUseBits(), llvm::InstCombinerImpl::visitAShr(), llvm::InstCombinerImpl::visitSDiv(), and llvm::InstCombinerImpl::visitUDiv().
Definition at line 1575 of file Metadata.cpp.
References llvm::Value::getContext(), hasMetadata(), and setMetadata().
Set the metadata of the specified kind to the specified node.
This updates or replaces metadata if already present, or removes it if Node is null.
Definition at line 1642 of file Metadata.cpp.
References assert(), hasMetadata(), and llvm::Value::setMetadata().
Referenced by AddAliasScopeMetadata(), addAnnotationMetadata(), addBasicBlockMetadata(), llvm::LoopVersioning::annotateInstWithNoAlias(), llvm::annotateValueSite(), llvm::memprof::CallStackTrie::buildAndAttachMIBMetadata(), combineStoreToNewValue(), llvm::ConstantFoldTerminator(), copyMetadata(), copyMetadataForAtomic(), llvm::copyMetadataForLoad(), llvm::copyNonnullMetadata(), llvm::copyRangeMetadata(), llvm::createCallMatchingInvoke(), llvm::IRBuilderBase::CreateElementUnorderedAtomicMemCpy(), llvm::IRBuilderBase::CreateElementUnorderedAtomicMemMove(), llvm::IRBuilderBase::CreateElementUnorderedAtomicMemSet(), llvm::IRBuilderBase::CreateMemSet(), llvm::IRBuilderBase::CreateMemSetInline(), llvm::IRBuilderBase::CreateMemTransferInst(), llvm::IRBuilderBase::CreatePreserveArrayAccessIndex(), llvm::IRBuilderBase::CreatePreserveStructAccessIndex(), llvm::IRBuilderBase::CreatePreserveUnionAccessIndex(), llvm::SITargetLowering::emitExpandAtomicRMW(), findBasePointer(), llvm::InstCombinerImpl::foldPHIArgLoadIntoPHI(), handlePhiDef(), insertNewDbgInst(), insertUniqueBackedgeBlock(), mergeDIAssignID(), migrateDebugInfo(), llvm::MetadataLoader::MetadataLoaderImpl::parseMetadataAttachment(), performBranchToCommonDestFolding(), llvm::promoteCall(), propagateMemProfHelper(), llvm::propagateMetadata(), setAAMetadata(), llvm::setIrrLoopHeaderMetadata(), llvm::setLoopEstimatedTripCount(), setMetadata(), setNoSanitizeMetadata(), llvm::InstCombinerImpl::SimplifyAnyMemTransfer(), llvm::SplitBlockAndInsertIfThenElse(), SplitBlockPredecessorsImpl(), swapProfMetadata(), unswitchNontrivialInvariants(), upgradeAMDGCNIntrinsicCall(), upgradeX86IntrinsicCall(), and ~Instruction().
Set or clear the nneg flag on this instruction, which must be a zext instruction.
Definition at line 381 of file Instruction.cpp.
References assert(), llvm::PossiblyNonNegInst::NonNeg, and llvm::Value::SubclassOptionalData.
Referenced by andIRFlags(), copyIRFlags(), dropPoisonGeneratingFlags(), llvm::refineInstruction(), llvm::replaceSignedInst(), llvm::InstCombinerImpl::visitUIToFP(), and llvm::InstCombinerImpl::visitZExt().
void Instruction::setNoSanitizeMetadata | ( | ) |
Sets the nosanitize metadata on this instruction.
Definition at line 1734 of file Metadata.cpp.
References llvm::MDNode::get(), llvm::Value::getContext(), and setMetadata().
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Definition at line 1023 of file Instruction.h.
void Instruction::setSuccessor | ( | unsigned | Idx, |
BasicBlock * | BB | ||
) |
Update the specified successor to point at the provided block.
This instruction must be a terminator.
Definition at line 1234 of file Instruction.cpp.
References getOpcode(), and llvm_unreachable.
Referenced by cloneLoopBlocks(), CloneLoopBlocks(), llvm::createMemCpyLoopKnownSize(), llvm::SPIRVMergeRegionExitTargets::replaceBranchTargets(), replaceSuccessorWith(), llvm::SplitKnownCriticalEdge(), llvm::JumpThreadingPass::threadEdge(), and llvm::JumpThreadingPass::threadThroughTwoBasicBlocks().
void Instruction::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.
Definition at line 1257 of file Instruction.cpp.
References llvm::MDNode::get(), llvm::getBranchWeightMDNode(), llvm::getBranchWeightOffset(), llvm::MDNode::getContext(), llvm::MDNode::getNumOperands(), llvm::MDNode::getOperand(), Idx, llvm::SmallVectorTemplateBase< T, bool >::push_back(), and setMetadata().
Referenced by llvm::BranchInst::swapSuccessors().
void Instruction::updateLocationAfterHoist | ( | ) |
Updates the debug location given that the instruction has been hoisted from a block to a predecessor of that block.
Note: it is undefined behavior to call this on an instruction not currently inserted into a function.
Definition at line 965 of file DebugInfo.cpp.
References dropLocation().
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inline |
Specialize the methods defined in Value, as we know that an instruction can only be used by other instructions.
Definition at line 169 of file Instruction.h.
Referenced by foldInsSequenceIntoSplat(), llvm::InstCombinerImpl::foldIntegerTypedPHI(), llvm::ARMTTIImpl::getArithmeticInstrCost(), llvm::ARMTTIImpl::getCmpSelInstrCost(), llvm::LoopVectorizationCostModel::getReductionPatternCost(), isDeadPHICycle(), isNotUsedOrFoldableInLoop(), promoteSingleBlockAlloca(), replaceExtractElements(), ShouldBreakUpSubtract(), shouldExpandCmpArithRMWInIR(), llvm::InstCombinerImpl::SliceUpIllegalIntegerPHI(), speculatePHINodeLoads(), llvm::FastISel::tryToFoldLoad(), llvm::InstCombinerImpl::visitPHINode(), llvm::InstCombinerImpl::visitSExt(), and llvm::InstCombinerImpl::visitZExt().
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Definition at line 170 of file Instruction.h.
bool Instruction::willReturn | ( | ) | const |
Return true if the instruction will return (unwinding is considered as a form of returning control flow here).
Definition at line 1132 of file Instruction.cpp.
Referenced by isRemovableWrite(), isSafeToMove(), and mayHaveSideEffects().
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Various leaf nodes.
Definition at line 997 of file Instruction.h.
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friend |
Definition at line 938 of file Instruction.h.
DbgMarker* llvm::Instruction::DebugMarker = nullptr |
Optional marker recording the position for debugging information that takes effect immediately before this instruction.
Null unless there is debugging information present.
Definition at line 84 of file Instruction.h.
Referenced by adoptDbgRecords(), cloneDebugInfoFrom(), dropDbgRecords(), dropOneDbgRecord(), handleMarkerRemoval(), insertBefore(), llvm::DbgMarker::removeFromParent(), and llvm::DbgMarker::removeMarker().