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llvm::ImmediateDominatorsBase Class Reference

#include <Dominators.h>

Inheritance diagram for llvm::ImmediateDominatorsBase:

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Collaboration diagram for llvm::ImmediateDominatorsBase:

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List of all members.

Public Types

typedef std::map< BasicBlock *,
BasicBlock * > 
IDomMapType
typedef IDomMapType::const_iterator const_iterator

Public Member Functions

 ImmediateDominatorsBase (bool isPostDom)
virtual void releaseMemory ()
const_iterator begin () const
const_iterator end () const
const_iterator find (BasicBlock *B) const
BasicBlockoperator[] (BasicBlock *BB) const
BasicBlockget (BasicBlock *BB) const
void addNewBlock (BasicBlock *BB, BasicBlock *IDom)
void setImmediateDominator (BasicBlock *BB, BasicBlock *NewIDom)
virtual void print (std::ostream &OS) const

Protected Attributes

std::map< BasicBlock *, BasicBlock * > IDoms

Detailed Description

ImmediateDominators - Calculate the immediate dominator for each node in a function.

Definition at line 64 of file Dominators.h.


Member Typedef Documentation

typedef IDomMapType::const_iterator llvm::ImmediateDominatorsBase::const_iterator
 

Definition at line 74 of file Dominators.h.

typedef std::map<BasicBlock*, BasicBlock*> llvm::ImmediateDominatorsBase::IDomMapType
 

Definition at line 73 of file Dominators.h.


Constructor & Destructor Documentation

llvm::ImmediateDominatorsBase::ImmediateDominatorsBase bool  isPostDom  )  [inline]
 

Definition at line 68 of file Dominators.h.


Member Function Documentation

void llvm::ImmediateDominatorsBase::addNewBlock BasicBlock BB,
BasicBlock IDom
[inline]
 

addNewBlock - Add a new block to the CFG, with the specified immediate dominator.

Definition at line 100 of file Dominators.h.

References get(), and IDoms.

const_iterator llvm::ImmediateDominatorsBase::begin  )  const [inline]
 

Definition at line 75 of file Dominators.h.

References IDoms.

const_iterator llvm::ImmediateDominatorsBase::end  )  const [inline]
 

Definition at line 76 of file Dominators.h.

References IDoms.

const_iterator llvm::ImmediateDominatorsBase::find BasicBlock B  )  const [inline]
 

Definition at line 77 of file Dominators.h.

References IDoms.

BasicBlock* llvm::ImmediateDominatorsBase::get BasicBlock BB  )  const [inline]
 

get() - Synonym for operator[].

Definition at line 88 of file Dominators.h.

References I, and IDoms.

Referenced by addNewBlock(), operator[](), and print().

BasicBlock* llvm::ImmediateDominatorsBase::operator[] BasicBlock BB  )  const [inline]
 

operator[] - Return the idom for the specified basic block. The start node returns null, because it does not have an immediate dominator.

Definition at line 82 of file Dominators.h.

References get().

void ImmediateDominatorsBase::print std::ostream &  OS  )  const [virtual]
 

print - Convert to human readable form

Reimplemented from llvm::Pass.

Definition at line 213 of file Dominators.cpp.

References llvm::Function::begin(), E, llvm::Function::end(), F, get(), llvm::DominatorBase::getRoots(), I, and llvm::WriteAsOperand().

virtual void llvm::ImmediateDominatorsBase::releaseMemory  )  [inline, virtual]
 

releaseMemory() - This member can be implemented by a pass if it wants to be able to release its memory when it is no longer needed. The default behavior of passes is to hold onto memory for the entire duration of their lifetime (which is the entire compile time). For pipelined passes, this is not a big deal because that memory gets recycled every time the pass is invoked on another program unit. For IP passes, it is more important to free memory when it is unused.

Optionally implement this function to release pass memory when it is no longer used.

Reimplemented from llvm::Pass.

Definition at line 70 of file Dominators.h.

References IDoms.

void llvm::ImmediateDominatorsBase::setImmediateDominator BasicBlock BB,
BasicBlock NewIDom
[inline]
 

setImmediateDominator - Update the immediate dominator information to change the current immediate dominator for the specified block to another block. This method requires that BB already have an IDom, otherwise just use addNewBlock.

Definition at line 110 of file Dominators.h.

References IDoms.


Member Data Documentation

std::map<BasicBlock*, BasicBlock*> llvm::ImmediateDominatorsBase::IDoms [protected]
 

Definition at line 66 of file Dominators.h.

Referenced by addNewBlock(), begin(), end(), find(), get(), releaseMemory(), llvm::ImmediatePostDominators::runOnFunction(), llvm::ImmediateDominators::runOnFunction(), and setImmediateDominator().


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