LLVM  16.0.0git
Public Member Functions | Static Public Member Functions | List of all members
llvm::VPBlockUtils Class Reference

Class that provides utilities for VPBlockBases in VPlan. More...

#include "Transforms/Vectorize/VPlan.h"

Public Member Functions

 VPBlockUtils ()=delete
 

Static Public Member Functions

static void insertBlockAfter (VPBlockBase *NewBlock, VPBlockBase *BlockPtr)
 Insert disconnected VPBlockBase NewBlock after BlockPtr. More...
 
static void insertTwoBlocksAfter (VPBlockBase *IfTrue, VPBlockBase *IfFalse, VPBlockBase *BlockPtr)
 Insert disconnected VPBlockBases IfTrue and IfFalse after BlockPtr. More...
 
static void connectBlocks (VPBlockBase *From, VPBlockBase *To)
 Connect VPBlockBases From and To bi-directionally. More...
 
static void disconnectBlocks (VPBlockBase *From, VPBlockBase *To)
 Disconnect VPBlockBases From and To bi-directionally. More...
 
static VPBasicBlocktryToMergeBlockIntoPredecessor (VPBlockBase *Block)
 Try to merge Block into its single predecessor, if Block is a VPBasicBlock and its predecessor has a single successor. More...
 
template<typename BlockTy , typename T >
static auto blocksOnly (const T &Range)
 Return an iterator range over Range which only includes BlockTy blocks. More...
 

Detailed Description

Class that provides utilities for VPBlockBases in VPlan.

Definition at line 2802 of file VPlan.h.

Constructor & Destructor Documentation

◆ VPBlockUtils()

llvm::VPBlockUtils::VPBlockUtils ( )
delete

Member Function Documentation

◆ blocksOnly()

template<typename BlockTy , typename T >
static auto llvm::VPBlockUtils::blocksOnly ( const T &  Range)
inlinestatic

Return an iterator range over Range which only includes BlockTy blocks.

The accesses are casted to BlockTy.

Definition at line 2892 of file VPlan.h.

References llvm::Filter, llvm::make_filter_range(), and llvm::map_range().

◆ connectBlocks()

static void llvm::VPBlockUtils::connectBlocks ( VPBlockBase From,
VPBlockBase To 
)
inlinestatic

Connect VPBlockBases From and To bi-directionally.

Append To to the successors of From and From to the predecessors of To. Both VPBlockBases must have the same parent, which can be null. Both VPBlockBases can be already connected to other VPBlockBases.

Definition at line 2847 of file VPlan.h.

References assert(), From, and llvm::VPBlockBase::getParent().

Referenced by llvm::VPRecipeBuilder::handleReplication(), insertBlockAfter(), llvm::VPlanTransforms::mergeReplicateRegions(), llvm::VPBasicBlock::splitAt(), and tryToMergeBlockIntoPredecessor().

◆ disconnectBlocks()

static void llvm::VPBlockUtils::disconnectBlocks ( VPBlockBase From,
VPBlockBase To 
)
inlinestatic

Disconnect VPBlockBases From and To bi-directionally.

Remove To from the successors of From and From from the predecessors of To.

Definition at line 2858 of file VPlan.h.

References assert(), and From.

Referenced by llvm::VPRecipeBuilder::handleReplication(), insertBlockAfter(), llvm::VPlanTransforms::mergeReplicateRegions(), llvm::VPBasicBlock::splitAt(), and tryToMergeBlockIntoPredecessor().

◆ insertBlockAfter()

static void llvm::VPBlockUtils::insertBlockAfter ( VPBlockBase NewBlock,
VPBlockBase BlockPtr 
)
inlinestatic

Insert disconnected VPBlockBase NewBlock after BlockPtr.

Add NewBlock as successor of BlockPtr and BlockPtr as predecessor of NewBlock, and propagate BlockPtr parent to NewBlock. BlockPtr's successors are moved from BlockPtr to NewBlock. NewBlock must have neither successors nor predecessors.

Definition at line 2811 of file VPlan.h.

References assert(), connectBlocks(), disconnectBlocks(), llvm::VPBlockBase::getParent(), llvm::VPBlockBase::getPredecessors(), llvm::VPBlockBase::getSuccessors(), llvm::VPBlockBase::setParent(), and llvm::VPBlockBase::successors().

Referenced by llvm::VPRecipeBuilder::handleReplication(), and llvm::VPBasicBlock::splitAt().

◆ insertTwoBlocksAfter()

static void llvm::VPBlockUtils::insertTwoBlocksAfter ( VPBlockBase IfTrue,
VPBlockBase IfFalse,
VPBlockBase BlockPtr 
)
inlinestatic

Insert disconnected VPBlockBases IfTrue and IfFalse after BlockPtr.

Add IfTrue and IfFalse as succesors of BlockPtr and BlockPtr as predecessor of IfTrue and IfFalse. Propagate BlockPtr parent to IfTrue and IfFalse. BlockPtr must have no successors and IfTrue and IfFalse must have neither successors nor predecessors.

Definition at line 2830 of file VPlan.h.

References assert(), llvm::VPBlockBase::getParent(), llvm::VPBlockBase::getSuccessors(), llvm::VPBlockBase::setParent(), llvm::VPBlockBase::setPredecessors(), and llvm::VPBlockBase::setTwoSuccessors().

◆ tryToMergeBlockIntoPredecessor()

static VPBasicBlock* llvm::VPBlockUtils::tryToMergeBlockIntoPredecessor ( VPBlockBase Block)
inlinestatic

Try to merge Block into its single predecessor, if Block is a VPBasicBlock and its predecessor has a single successor.

Returns a pointer to the predecessor Block was merged into or nullptr otherwise.

Definition at line 2867 of file VPlan.h.

References connectBlocks(), disconnectBlocks(), and llvm::make_early_inc_range().


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