LLVM 20.0.0git
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llvm::VPBranchOnMaskRecipe Class Reference

A recipe for generating conditional branches on the bits of a mask. More...

#include "Transforms/Vectorize/VPlan.h"

Inheritance diagram for llvm::VPBranchOnMaskRecipe:
Inheritance graph
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Public Member Functions

 VPBranchOnMaskRecipe (VPValue *BlockInMask)
 
VPBranchOnMaskRecipeclone () override
 Clone the current recipe.
 
void execute (VPTransformState &State) override
 Generate the extraction of the appropriate bit from the block mask and the conditional branch.
 
void print (raw_ostream &O, const Twine &Indent, VPSlotTracker &SlotTracker) const override
 Print the recipe.
 
VPValuegetMask () const
 Return the mask used by this recipe.
 
bool usesScalars (const VPValue *Op) const override
 Returns true if the recipe uses scalars of operand Op.
 
- Public Member Functions inherited from llvm::VPRecipeBase
 VPRecipeBase (const unsigned char SC, ArrayRef< VPValue * > Operands, DebugLoc DL={})
 
template<typename IterT >
 VPRecipeBase (const unsigned char SC, iterator_range< IterT > Operands, DebugLoc DL={})
 
virtual ~VPRecipeBase ()=default
 
virtual VPRecipeBaseclone ()=0
 Clone the current recipe.
 
VPBasicBlockgetParent ()
 
const VPBasicBlockgetParent () const
 
virtual void execute (VPTransformState &State)=0
 The method which generates the output IR instructions that correspond to this VPRecipe, thereby "executing" the VPlan.
 
InstructionCost cost (ElementCount VF, VPCostContext &Ctx)
 Return the cost of this recipe, taking into account if the cost computation should be skipped and the ForceTargetInstructionCost flag.
 
void insertBefore (VPRecipeBase *InsertPos)
 Insert an unlinked recipe into a basic block immediately before the specified recipe.
 
void insertBefore (VPBasicBlock &BB, iplist< VPRecipeBase >::iterator IP)
 Insert an unlinked recipe into BB immediately before the insertion point IP;.
 
void insertAfter (VPRecipeBase *InsertPos)
 Insert an unlinked Recipe into a basic block immediately after the specified Recipe.
 
void moveAfter (VPRecipeBase *MovePos)
 Unlink this recipe from its current VPBasicBlock and insert it into the VPBasicBlock that MovePos lives in, right after MovePos.
 
void moveBefore (VPBasicBlock &BB, iplist< VPRecipeBase >::iterator I)
 Unlink this recipe and insert into BB before I.
 
void removeFromParent ()
 This method unlinks 'this' from the containing basic block, but does not delete it.
 
iplist< VPRecipeBase >::iterator eraseFromParent ()
 This method unlinks 'this' from the containing basic block and deletes it.
 
bool mayHaveSideEffects () const
 Returns true if the recipe may have side-effects.
 
bool isPhi () const
 Returns true for PHI-like recipes.
 
bool mayReadFromMemory () const
 Returns true if the recipe may read from memory.
 
bool mayWriteToMemory () const
 Returns true if the recipe may write to memory.
 
bool mayReadOrWriteMemory () const
 Returns true if the recipe may read from or write to memory.
 
DebugLoc getDebugLoc () const
 Returns the debug location of the recipe.
 
- Public Member Functions inherited from llvm::ilist_node_with_parent< VPRecipeBase, VPBasicBlock >
VPRecipeBasegetPrevNode ()
 
const VPRecipeBasegetPrevNode () const
 Get the previous node, or nullptr for the list head.
 
VPRecipeBasegetNextNode ()
 Get the next node, or nullptr for the list tail.
 
const VPRecipeBasegetNextNode () 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)
 
- Public Member Functions inherited from llvm::VPDef
 VPDef (const unsigned char SC)
 
virtual ~VPDef ()
 
VPValuegetVPSingleValue ()
 Returns the only VPValue defined by the VPDef.
 
const VPValuegetVPSingleValue () const
 
VPValuegetVPValue (unsigned I)
 Returns the VPValue with index I defined by the VPDef.
 
const VPValuegetVPValue (unsigned I) const
 
ArrayRef< VPValue * > definedValues ()
 Returns an ArrayRef of the values defined by the VPDef.
 
ArrayRef< VPValue * > definedValues () const
 Returns an ArrayRef of the values defined by the VPDef.
 
unsigned getNumDefinedValues () const
 Returns the number of values defined by the VPDef.
 
unsigned getVPDefID () const
 
void dump () const
 Dump the VPDef to stderr (for debugging).
 
virtual void print (raw_ostream &O, const Twine &Indent, VPSlotTracker &SlotTracker) const =0
 Each concrete VPDef prints itself.
 
- Public Member Functions inherited from llvm::VPUser
 VPUser ()=delete
 
 VPUser (const VPUser &)=delete
 
VPUseroperator= (const VPUser &)=delete
 
virtual ~VPUser ()
 
VPUserID getVPUserID () const
 
void addOperand (VPValue *Operand)
 
unsigned getNumOperands () const
 
VPValuegetOperand (unsigned N) const
 
void setOperand (unsigned I, VPValue *New)
 
operand_iterator op_begin ()
 
const_operand_iterator op_begin () const
 
operand_iterator op_end ()
 
const_operand_iterator op_end () const
 
operand_range operands ()
 
const_operand_range operands () const
 
virtual bool usesScalars (const VPValue *Op) const
 Returns true if the VPUser uses scalars of operand Op.
 
virtual bool onlyFirstLaneUsed (const VPValue *Op) const
 Returns true if the VPUser only uses the first lane of operand Op.
 
virtual bool onlyFirstPartUsed (const VPValue *Op) const
 Returns true if the VPUser only uses the first part of operand Op.
 

Additional Inherited Members

- Public Types inherited from llvm::VPDef
using VPRecipeTy = enum { VPBranchOnMaskSC, VPDerivedIVSC, VPExpandSCEVSC, VPInstructionSC, VPInterleaveSC, VPReductionEVLSC, VPReductionSC, VPReplicateSC, VPScalarCastSC, VPScalarIVStepsSC, VPVectorPointerSC, VPWidenCallSC, VPWidenCanonicalIVSC, VPWidenCastSC, VPWidenGEPSC, VPWidenLoadEVLSC, VPWidenLoadSC, VPWidenStoreEVLSC, VPWidenStoreSC, VPWidenSC, VPWidenSelectSC, VPBlendSC, VPWidenPHISC, VPPredInstPHISC, VPCanonicalIVPHISC, VPActiveLaneMaskPHISC, VPEVLBasedIVPHISC, VPFirstOrderRecurrencePHISC, VPWidenIntOrFpInductionSC, VPWidenPointerInductionSC, VPReductionPHISC, VPFirstPHISC=VPWidenPHISC, VPFirstHeaderPHISC=VPCanonicalIVPHISC, VPLastHeaderPHISC=VPReductionPHISC, VPLastPHISC=VPReductionPHISC, }
 An enumeration for keeping track of the concrete subclass of VPRecipeBase that is actually instantiated.
 
- Public Types inherited from llvm::VPUser
enum class  VPUserID { Recipe , LiveOut }
 Subclass identifier (for isa/dyn_cast). More...
 
typedef SmallVectorImpl< VPValue * >::iterator operand_iterator
 
typedef SmallVectorImpl< VPValue * >::const_iterator const_operand_iterator
 
typedef iterator_range< operand_iteratoroperand_range
 
typedef iterator_range< const_operand_iteratorconst_operand_range
 
- Static Public Member Functions inherited from llvm::VPRecipeBase
static bool classof (const VPDef *D)
 Method to support type inquiry through isa, cast, and dyn_cast.
 
static bool classof (const VPUser *U)
 
- Protected Types inherited from llvm::ilist_node_impl< ilist_detail::compute_node_options< T, Options... >::type >
using self_iterator = typename ilist_select_iterator_type< OptionsT::has_iterator_bits, ilist_detail::compute_node_options< T, Options... >::type, false, false >::type
 
using const_self_iterator = typename ilist_select_iterator_type< OptionsT::has_iterator_bits, ilist_detail::compute_node_options< T, Options... >::type, false, true >::type
 
using reverse_self_iterator = typename ilist_select_iterator_type< OptionsT::has_iterator_bits, ilist_detail::compute_node_options< T, Options... >::type, true, false >::type
 
using const_reverse_self_iterator = typename ilist_select_iterator_type< OptionsT::has_iterator_bits, ilist_detail::compute_node_options< T, Options... >::type, true, true >::type
 
- Protected Member Functions inherited from llvm::VPRecipeBase
virtual InstructionCost computeCost (ElementCount VF, VPCostContext &Ctx) const
 Compute the cost of this recipe either using a recipe's specialized implementation or using the legacy cost model and the underlying instructions.
 
- Protected Member Functions inherited from llvm::ilist_node_with_parent< VPRecipeBase, VPBasicBlock >
 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
 
- Protected Member Functions inherited from llvm::VPUser
void printOperands (raw_ostream &O, VPSlotTracker &SlotTracker) const
 Print the operands to O.
 
 VPUser (ArrayRef< VPValue * > Operands, VPUserID ID)
 
 VPUser (std::initializer_list< VPValue * > Operands, VPUserID ID)
 
template<typename IterT >
 VPUser (iterator_range< IterT > Operands, VPUserID ID)
 

Detailed Description

A recipe for generating conditional branches on the bits of a mask.

Definition at line 2377 of file VPlan.h.

Constructor & Destructor Documentation

◆ VPBranchOnMaskRecipe()

llvm::VPBranchOnMaskRecipe::VPBranchOnMaskRecipe ( VPValue BlockInMask)
inline

Definition at line 2379 of file VPlan.h.

Member Function Documentation

◆ clone()

VPBranchOnMaskRecipe * llvm::VPBranchOnMaskRecipe::clone ( )
inlineoverridevirtual

Clone the current recipe.

Implements llvm::VPRecipeBase.

Definition at line 2385 of file VPlan.h.

References llvm::VPUser::getOperand().

◆ execute()

void VPBranchOnMaskRecipe::execute ( VPTransformState State)
overridevirtual

◆ getMask()

VPValue * llvm::VPBranchOnMaskRecipe::getMask ( ) const
inline

Return the mask used by this recipe.

Note that a full mask is represented by a nullptr.

Definition at line 2409 of file VPlan.h.

References assert(), llvm::VPUser::getNumOperands(), and llvm::VPUser::getOperand().

Referenced by execute(), and print().

◆ print()

void llvm::VPBranchOnMaskRecipe::print ( raw_ostream O,
const Twine Indent,
VPSlotTracker SlotTracker 
) const
inlineoverridevirtual

Print the recipe.

Implements llvm::VPDef.

Definition at line 2397 of file VPlan.h.

References getMask().

◆ usesScalars()

bool llvm::VPBranchOnMaskRecipe::usesScalars ( const VPValue Op) const
inlineoverridevirtual

Returns true if the recipe uses scalars of operand Op.

Reimplemented from llvm::VPUser.

Definition at line 2416 of file VPlan.h.

References assert(), llvm::is_contained(), and llvm::VPUser::operands().


The documentation for this class was generated from the following files: