llvm::VPPredInstPHIRecipe Class Reference

VPPredInstPHIRecipe is a recipe for generating the phi nodes needed when control converges back from a Branch-on-Mask. More...

#include "Transforms/Vectorize/VPlan.h"

Inheritance diagram for llvm::VPPredInstPHIRecipe:

Collaboration diagram for llvm::VPPredInstPHIRecipe:

Public Member Functions
	VPPredInstPHIRecipe (Instruction *PredInst)
	Construct a VPPredInstPHIRecipe given PredInst whose value needs a phi nodes after merging back from a Branch-on-Mask. More...
	~VPPredInstPHIRecipe () override=default
void	execute (VPTransformState &State) override
	Generates phi nodes for live-outs as needed to retain SSA form. More...
void	print (raw_ostream &O, const Twine &Indent) const override
	Print the recipe. More...
Public Member Functions inherited from llvm::VPRecipeBase
	VPRecipeBase (const unsigned char SC)
virtual	~VPRecipeBase ()=default
unsigned	getVPRecipeID () const
VPBasicBlock *	getParent ()
const VPBasicBlock *	getParent () const
void	insertBefore (VPRecipeBase *InsertPos)
	Insert an unlinked recipe into a basic block immediately before the specified recipe. More...
void	moveAfter (VPRecipeBase *MovePos)
	Unlink this recipe from its current VPBasicBlock and insert it into the VPBasicBlock that MovePos lives in, right after MovePos. More...
iplist< VPRecipeBase >::iterator	eraseFromParent ()
	This method unlinks 'this' from the containing basic block and deletes it. More...
Public Member Functions inherited from llvm::ilist_node_with_parent< VPRecipeBase, VPBasicBlock >
VPRecipeBase *	getPrevNode ()
const VPRecipeBase *	getPrevNode () const
	Get the previous node, or nullptr for the list head. More...
VPRecipeBase *	getNextNode ()
	Get the next node, or nullptr for the list tail. More...
const VPRecipeBase *	getNextNode () const
	Get the next node, or nullptr for the list tail. More...
Public Member Functions inherited from llvm::ilist_node_impl< ilist_detail::compute_node_options< VPRecipeBase, Options... >::type >
self_iterator	getIterator ()
const_self_iterator	getIterator () const
reverse_self_iterator	getReverseIterator ()
const_reverse_self_iterator	getReverseIterator () const
bool	isSentinel () const
	Check whether this is the sentinel node. More...

Static Public Member Functions
static bool	classof (const VPRecipeBase *V)
	Method to support type inquiry through isa, cast, and dyn_cast. More...

Additional Inherited Members
Public Types inherited from llvm::VPRecipeBase
using	VPRecipeTy = enum { VPBlendSC, VPBranchOnMaskSC, VPInstructionSC, VPInterleaveSC, VPPredInstPHISC, VPReplicateSC, VPWidenIntOrFpInductionSC, VPWidenMemoryInstructionSC, VPWidenPHISC, VPWidenSC, }
	An enumeration for keeping track of the concrete subclass of VPRecipeBase that is actually instantiated. More...
Protected Types inherited from llvm::ilist_node_impl< ilist_detail::compute_node_options< VPRecipeBase, Options... >::type >
using	self_iterator = ilist_iterator< ilist_detail::compute_node_options< VPRecipeBase, Options... >::type, false, false >
using	const_self_iterator = ilist_iterator< ilist_detail::compute_node_options< VPRecipeBase, Options... >::type, false, true >
using	reverse_self_iterator = ilist_iterator< ilist_detail::compute_node_options< VPRecipeBase, Options... >::type, true, false >
using	const_reverse_self_iterator = ilist_iterator< ilist_detail::compute_node_options< VPRecipeBase, Options... >::type, true, true >
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< VPRecipeBase, Options... >::type >
	ilist_node_impl ()=default

Detailed Description

VPPredInstPHIRecipe is a recipe for generating the phi nodes needed when control converges back from a Branch-on-Mask.

The phi nodes are needed in order to merge values that are set under such a branch and feed their uses. The phi nodes can be scalar or vector depending on the users of the value. This recipe works in concert with VPBranchOnMaskRecipe.

Definition at line 933 of file VPlan.h.

Constructor & Destructor Documentation

VPPredInstPHIRecipe()

llvm::VPPredInstPHIRecipe::VPPredInstPHIRecipe ( Instruction *  PredInst )

inline

Construct a VPPredInstPHIRecipe given PredInst whose value needs a phi nodes after merging back from a Branch-on-Mask.

Definition at line 940 of file VPlan.h.

~VPPredInstPHIRecipe()

llvm::VPPredInstPHIRecipe::~VPPredInstPHIRecipe ( )

overridedefault

Member Function Documentation

classof()

static bool llvm::VPPredInstPHIRecipe::classof ( const VPRecipeBase *  V )

inlinestatic

Method to support type inquiry through isa, cast, and dyn_cast.

Definition at line 945 of file VPlan.h.

References llvm::VPRecipeBase::getVPRecipeID(), llvm::RISCVFenceField::O, and print().

execute()

void VPPredInstPHIRecipe::execute ( VPTransformState &  State )

overridevirtual

Generates phi nodes for live-outs as needed to retain SSA form.

Implements llvm::VPRecipeBase.

Definition at line 7396 of file LoopVectorize.cpp.

References llvm::PHINode::addIncoming(), assert(), llvm::VPTransformState::Builder, llvm::IRBuilder< T, Inserter >::CreatePHI(), llvm::UndefValue::get(), llvm::User::getOperand(), llvm::Instruction::getParent(), llvm::VectorizerValueMap::getScalarValue(), llvm::BasicBlock::getSinglePredecessor(), llvm::Value::getType(), llvm::InsertElementInst::getType(), llvm::VectorizerValueMap::getVectorValue(), llvm::VectorizerValueMap::hasVectorValue(), llvm::VPTransformState::Instance, llvm::VectorizerValueMap::resetScalarValue(), llvm::VectorizerValueMap::resetVectorValue(), and llvm::VPTransformState::ValueMap.

print()

void VPPredInstPHIRecipe::print ( raw_ostream &  O, const Twine &  Indent  ) const

overridevirtual

Print the recipe.

Implements llvm::VPRecipeBase.

Definition at line 697 of file VPlan.cpp.

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

• lib/Transforms/Vectorize/VPlan.h
• lib/Transforms/Vectorize/LoopVectorize.cpp
• lib/Transforms/Vectorize/VPlan.cpp