LLVM 20.0.0git
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llvm::GenericCycleInfo< ContextT > Class Template Reference

Cycle information for a function. More...

#include "llvm/ADT/GenericCycleInfo.h"

Inheritance diagram for llvm::GenericCycleInfo< ContextT >:
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Classes

struct  const_toplevel_iterator
 

Public Types

using BlockT = typename ContextT::BlockT
 
using CycleT = GenericCycle< ContextT >
 
using FunctionT = typename ContextT::FunctionT
 
using const_toplevel_iterator_base = typename std::vector< std::unique_ptr< CycleT > >::const_iterator
 Iteration over top-level cycles.
 

Public Member Functions

 GenericCycleInfo ()=default
 
 GenericCycleInfo (GenericCycleInfo &&)=default
 
GenericCycleInfo & operator= (GenericCycleInfo &&)=default
 
void clear ()
 Reset the object to its initial state.
 
void compute (FunctionT &F)
 Compute the cycle info for a function.
 
void splitCriticalEdge (BlockT *Pred, BlockT *Succ, BlockT *New)
 
const FunctionT * getFunction () const
 
const ContextT & getSSAContext () const
 
CycleT * getCycle (const BlockT *Block) const
 Find the innermost cycle containing a given block.
 
CycleT * getSmallestCommonCycle (CycleT *A, CycleT *B) const
 Find the innermost cycle containing both given cycles.
 
unsigned getCycleDepth (const BlockT *Block) const
 get the depth for the cycle which containing a given block.
 
CycleT * getTopLevelParentCycle (BlockT *Block)
 
void addBlockToCycle (BlockT *Block, CycleT *Cycle)
 Assumes that Cycle is the innermost cycle containing Block.
 
void verifyCycleNest (bool VerifyFull=false) const
 Methods for debug and self-test.
 
void verify () const
 Verify that the entire cycle tree well-formed.
 
void print (raw_ostream &Out) const
 Print the cycle info.
 
void dump () const
 
Printable print (const CycleT *Cycle)
 
const_toplevel_iterator toplevel_begin () const
 
const_toplevel_iterator toplevel_end () const
 
iterator_range< const_toplevel_iterator > toplevel_cycles () const
 

Friends

template<typename >
class GenericCycle
 
template<typename >
class GenericCycleInfoCompute
 

Detailed Description

template<typename ContextT>
class llvm::GenericCycleInfo< ContextT >

Cycle information for a function.

Definition at line 258 of file GenericCycleInfo.h.

Member Typedef Documentation

◆ BlockT

template<typename ContextT >
using llvm::GenericCycleInfo< ContextT >::BlockT = typename ContextT::BlockT

Definition at line 260 of file GenericCycleInfo.h.

◆ const_toplevel_iterator_base

template<typename ContextT >
using llvm::GenericCycleInfo< ContextT >::const_toplevel_iterator_base = typename std::vector<std::unique_ptr<CycleT> >::const_iterator

Iteration over top-level cycles.

Definition at line 321 of file GenericCycleInfo.h.

◆ CycleT

template<typename ContextT >
using llvm::GenericCycleInfo< ContextT >::CycleT = GenericCycle<ContextT>

Definition at line 261 of file GenericCycleInfo.h.

◆ FunctionT

template<typename ContextT >
using llvm::GenericCycleInfo< ContextT >::FunctionT = typename ContextT::FunctionT

Definition at line 262 of file GenericCycleInfo.h.

Constructor & Destructor Documentation

◆ GenericCycleInfo() [1/2]

template<typename ContextT >
llvm::GenericCycleInfo< ContextT >::GenericCycleInfo ( )
default

◆ GenericCycleInfo() [2/2]

template<typename ContextT >
llvm::GenericCycleInfo< ContextT >::GenericCycleInfo ( GenericCycleInfo< ContextT > &&  )
default

Member Function Documentation

◆ addBlockToCycle()

template<typename ContextT >
void llvm::GenericCycleInfo< ContextT >::addBlockToCycle ( BlockT *  Block,
CycleT *  Cycle 
)

Assumes that Cycle is the innermost cycle containing Block.

Block will be appended to Cycle and all of its parent cycles. Block will be added to BlockMap with Cycle and BlockMapTopLevel with Cycle's top level parent cycle.

Definition at line 312 of file GenericCycleImpl.h.

Referenced by fixIrreducible().

◆ clear()

template<typename ContextT >
void llvm::GenericCycleInfo< ContextT >::clear

Reset the object to its initial state.

Definition at line 496 of file GenericCycleImpl.h.

Referenced by llvm::CycleInfoWrapperPass::releaseMemory(), llvm::MachineCycleInfoWrapperPass::releaseMemory(), llvm::CycleInfoWrapperPass::runOnFunction(), and llvm::MachineCycleInfoWrapperPass::runOnMachineFunction().

◆ compute()

template<typename ContextT >
void llvm::GenericCycleInfo< ContextT >::compute ( FunctionT &  F)

Compute the cycle info for a function.

Definition at line 504 of file GenericCycleImpl.h.

References llvm::errs(), F, LLVM_DEBUG, and llvm::GenericCycleInfoCompute< ContextT >::run().

Referenced by llvm::CycleAnalysis::run(), llvm::CycleInfoWrapperPass::runOnFunction(), and llvm::MachineCycleInfoWrapperPass::runOnMachineFunction().

◆ dump()

template<typename ContextT >
void llvm::GenericCycleInfo< ContextT >::dump ( ) const
inline

Definition at line 315 of file GenericCycleInfo.h.

References llvm::dbgs(), and llvm::GenericCycleInfo< ContextT >::print().

◆ getCycle()

template<typename ContextT >
auto llvm::GenericCycleInfo< ContextT >::getCycle ( const BlockT *  Block) const

Find the innermost cycle containing a given block.

Returns
the innermost cycle containing Block or nullptr if it is not contained in any cycle.

Definition at line 531 of file GenericCycleImpl.h.

References llvm::Block.

Referenced by llvm::SIInstrInfo::isSafeToSink(), and mayBeInCycle().

◆ getCycleDepth()

template<typename ContextT >
unsigned llvm::GenericCycleInfo< ContextT >::getCycleDepth ( const BlockT *  Block) const

get the depth for the cycle which containing a given block.

Returns
the depth for the innermost cycle containing Block or 0 if it is not contained in any cycle.

Definition at line 570 of file GenericCycleImpl.h.

References llvm::Block, and llvm::GenericCycle< ContextT >::getDepth().

◆ getFunction()

template<typename ContextT >
const FunctionT * llvm::GenericCycleInfo< ContextT >::getFunction ( ) const
inline

Definition at line 296 of file GenericCycleInfo.h.

◆ getSmallestCommonCycle()

template<typename ContextT >
auto llvm::GenericCycleInfo< ContextT >::getSmallestCommonCycle ( CycleT *  A,
CycleT *  B 
) const

Find the innermost cycle containing both given cycles.

Returns
the innermost cycle containing both A and B or nullptr if there is no such cycle.

Definition at line 541 of file GenericCycleImpl.h.

References A, and B.

◆ getSSAContext()

template<typename ContextT >
const ContextT & llvm::GenericCycleInfo< ContextT >::getSSAContext ( ) const
inline

Definition at line 297 of file GenericCycleInfo.h.

◆ getTopLevelParentCycle()

template<typename ContextT >
auto llvm::GenericCycleInfo< ContextT >::getTopLevelParentCycle ( BlockT *  Block)

Definition at line 269 of file GenericCycleImpl.h.

References llvm::Block, and llvm::CallingConv::C.

◆ operator=()

template<typename ContextT >
GenericCycleInfo & llvm::GenericCycleInfo< ContextT >::operator= ( GenericCycleInfo< ContextT > &&  )
default

◆ print() [1/2]

template<typename ContextT >
Printable llvm::GenericCycleInfo< ContextT >::print ( const CycleT *  Cycle)
inline

Definition at line 316 of file GenericCycleInfo.h.

References llvm::GenericCycle< ContextT >::print().

◆ print() [2/2]

template<typename ContextT >
void llvm::GenericCycleInfo< ContextT >::print ( raw_ostream &  Out) const

Print the cycle info.

Definition at line 612 of file GenericCycleImpl.h.

References llvm::depth_first(), I, and llvm::GenericCycle< ContextT >::print().

Referenced by llvm::GenericCycleInfo< ContextT >::dump(), fixIrreducible(), llvm::CycleInfoWrapperPass::print(), and llvm::MachineCycleInfoWrapperPass::print().

◆ splitCriticalEdge()

template<typename ContextT >
void llvm::GenericCycleInfo< ContextT >::splitCriticalEdge ( BlockT *  Pred,
BlockT *  Succ,
BlockT *  New 
)

Definition at line 514 of file GenericCycleImpl.h.

◆ toplevel_begin()

template<typename ContextT >
const_toplevel_iterator llvm::GenericCycleInfo< ContextT >::toplevel_begin ( ) const
inline

Definition at line 337 of file GenericCycleInfo.h.

◆ toplevel_cycles()

template<typename ContextT >
iterator_range< const_toplevel_iterator > llvm::GenericCycleInfo< ContextT >::toplevel_cycles ( ) const
inline

Definition at line 344 of file GenericCycleInfo.h.

References llvm::make_range().

Referenced by FixIrreducibleImpl().

◆ toplevel_end()

template<typename ContextT >
const_toplevel_iterator llvm::GenericCycleInfo< ContextT >::toplevel_end ( ) const
inline

Definition at line 340 of file GenericCycleInfo.h.

◆ verify()

template<typename ContextT >
void llvm::GenericCycleInfo< ContextT >::verify

Verify that the entire cycle tree well-formed.

Definition at line 606 of file GenericCycleImpl.h.

Referenced by FixIrreducibleImpl(), and llvm::CycleInfoVerifierPass::run().

◆ verifyCycleNest()

template<typename ContextT >
void llvm::GenericCycleInfo< ContextT >::verifyCycleNest ( bool  VerifyFull = false) const

Methods for debug and self-test.

Verify the internal consistency of the cycle tree.

Note that this does not check that cycles are really cycles in the CFG, or that the right set of cycles in the CFG were found.

Definition at line 582 of file GenericCycleImpl.h.

References assert(), llvm::GenericCycle< ContextT >::blocks(), llvm::GenericCycle< ContextT >::contains(), llvm::depth_first(), llvm::GenericCycle< ContextT >::getHeader(), llvm::detail::DenseSetImpl< ValueT, MapTy, ValueInfoT >::insert(), llvm::GenericCycle< ContextT >::verifyCycle(), and llvm::GenericCycle< ContextT >::verifyCycleNest().

Friends And Related Function Documentation

◆ GenericCycle

template<typename ContextT >
template<typename >
friend class GenericCycle
friend

Definition at line 263 of file GenericCycleInfo.h.

◆ GenericCycleInfoCompute

template<typename ContextT >
template<typename >
friend class GenericCycleInfoCompute
friend

Definition at line 264 of file GenericCycleInfo.h.

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