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llvm::AliasSetTracker Class Reference

#include <AliasSetTracker.h>

Collaboration diagram for llvm::AliasSetTracker:

Collaboration graph
[legend]
List of all members.

Public Types

typedef ilist< AliasSet
>::iterator 
iterator
typedef ilist< AliasSet
>::const_iterator 
const_iterator

Public Member Functions

 AliasSetTracker (AliasAnalysis &aa)
bool add (Value *Ptr, unsigned Size)
bool add (LoadInst *LI)
bool add (StoreInst *SI)
bool add (FreeInst *FI)
bool add (CallSite CS)
bool add (CallInst *CI)
bool add (InvokeInst *II)
bool add (Instruction *I)
void add (BasicBlock &BB)
void add (const AliasSetTracker &AST)
bool remove (Value *Ptr, unsigned Size)
bool remove (LoadInst *LI)
bool remove (StoreInst *SI)
bool remove (FreeInst *FI)
bool remove (CallSite CS)
bool remove (CallInst *CI)
bool remove (InvokeInst *II)
bool remove (Instruction *I)
void remove (AliasSet &AS)
const ilist< AliasSet > & getAliasSets () const
AliasSetgetAliasSetForPointer (Value *P, unsigned Size, bool *New=0)
AliasSetgetAliasSetForPointerIfExists (Value *P, unsigned Size)
bool containsPointer (Value *P, unsigned Size) const
AliasAnalysisgetAliasAnalysis () const
void deleteValue (Value *PtrVal)
void copyValue (Value *From, Value *To)
const_iterator begin () const
const_iterator end () const
iterator begin ()
iterator end ()
void print (std::ostream &OS) const
void dump () const

Friends

class AliasSet

Detailed Description

Definition at line 246 of file AliasSetTracker.h.


Member Typedef Documentation

typedef ilist<AliasSet>::const_iterator llvm::AliasSetTracker::const_iterator
 

Definition at line 336 of file AliasSetTracker.h.

typedef ilist<AliasSet>::iterator llvm::AliasSetTracker::iterator
 

Definition at line 335 of file AliasSetTracker.h.


Constructor & Destructor Documentation

llvm::AliasSetTracker::AliasSetTracker AliasAnalysis aa  )  [inline]
 

AliasSetTracker ctor - Create an empty collection of AliasSets, and use the specified alias analysis object to disambiguate load and store addresses.

Definition at line 256 of file AliasSetTracker.h.


Member Function Documentation

void AliasSetTracker::add const AliasSetTracker AST  ) 
 

Definition at line 330 of file AliasSetTracker.cpp.

References AA, llvm::AliasSet::AccessTy, add(), llvm::AliasSet::begin(), begin(), llvm::AliasSet::CallSites, E, llvm::AliasSet::end(), end(), llvm::AliasSet::iterator::getPointer(), llvm::AliasSet::iterator::getSize(), I, and llvm::X.

void AliasSetTracker::add BasicBlock BB  ) 
 

Definition at line 325 of file AliasSetTracker.cpp.

References add(), llvm::BasicBlock::begin(), E, llvm::BasicBlock::end(), and I.

bool AliasSetTracker::add Instruction I  ) 
 

Definition at line 310 of file AliasSetTracker.cpp.

References add().

bool llvm::AliasSetTracker::add InvokeInst II  )  [inline]
 

Definition at line 276 of file AliasSetTracker.h.

References add().

bool llvm::AliasSetTracker::add CallInst CI  )  [inline]
 

Definition at line 275 of file AliasSetTracker.h.

References add().

bool AliasSetTracker::add CallSite  CS  ) 
 

Definition at line 293 of file AliasSetTracker.cpp.

References llvm::AliasSet::addCallSite(), AliasSet, llvm::AliasAnalysis::doesNotAccessMemory(), F, and llvm::CallSite::getCalledFunction().

bool AliasSetTracker::add FreeInst FI  ) 
 

Definition at line 285 of file AliasSetTracker.cpp.

References llvm::User::getOperand().

bool AliasSetTracker::add StoreInst SI  ) 
 

Definition at line 275 of file AliasSetTracker.cpp.

References llvm::User::getOperand(), llvm::AliasAnalysis::getTargetData(), llvm::Value::getType(), llvm::TargetData::getTypeSize(), llvm::StoreInst::isVolatile(), and llvm::AliasSet::setVolatile().

bool AliasSetTracker::add LoadInst LI  ) 
 

Definition at line 266 of file AliasSetTracker.cpp.

References llvm::User::getOperand(), llvm::AliasAnalysis::getTargetData(), llvm::Value::getType(), llvm::TargetData::getTypeSize(), llvm::LoadInst::isVolatile(), and llvm::AliasSet::setVolatile().

bool AliasSetTracker::add Value Ptr,
unsigned  Size
 

add methods - These methods are used to add different types of instructions to the alias sets. Adding a new instruction can result in one of three actions happening:

1. If the instruction doesn't alias any other sets, create a new set. 2. If the instruction aliases exactly one set, add it to the set 3. If the instruction aliases multiple sets, merge the sets, and add the instruction to the result.

These methods return true if inserting the instruction resulted in the addition of a new alias set (i.e., the pointer did not alias anything).

Definition at line 259 of file AliasSetTracker.cpp.

Referenced by add().

iterator llvm::AliasSetTracker::begin  )  [inline]
 

Definition at line 341 of file AliasSetTracker.h.

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

Definition at line 338 of file AliasSetTracker.h.

Referenced by add(), containsPointer(), and print().

bool AliasSetTracker::containsPointer Value P,
unsigned  Size
const
 

containsPointer - Return true if the specified location is represented by this alias set, false otherwise. This does not modify the AST object or alias sets.

Definition at line 209 of file AliasSetTracker.cpp.

References begin(), E, end(), and I.

void AliasSetTracker::copyValue Value From,
Value To
 

copyValue - This method should be used whenever a preexisting value in the program is copied or cloned, introducing a new value. Note that it is ok for clients that use this method to introduce the same value multiple times: if the tracker already knows about a value, it will ignore the request.

Definition at line 453 of file AliasSetTracker.cpp.

References llvm::AliasSet::addPointer(), llvm::AliasAnalysis::copyValue(), and I.

void AliasSetTracker::deleteValue Value PtrVal  ) 
 

deleteValue method - This method is used to remove a pointer value from the AliasSetTracker entirely. It should be used when an instruction is deleted from the program to update the AST. If you don't use this, you would have dangling pointers to deleted instructions.

Definition at line 429 of file AliasSetTracker.cpp.

References llvm::AliasAnalysis::deleteValue(), llvm::AliasSet::dropRef(), and I.

Referenced by remove().

void AliasSetTracker::dump  )  const
 

Definition at line 518 of file AliasSetTracker.cpp.

References print().

iterator llvm::AliasSetTracker::end  )  [inline]
 

Definition at line 342 of file AliasSetTracker.h.

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

Definition at line 339 of file AliasSetTracker.h.

Referenced by add(), containsPointer(), and print().

AliasAnalysis& llvm::AliasSetTracker::getAliasAnalysis  )  const [inline]
 

getAliasAnalysis - Return the underlying alias analysis object used by this tracker.

Definition at line 317 of file AliasSetTracker.h.

Referenced by llvm::AliasSet::mergeSetIn().

AliasSet & AliasSetTracker::getAliasSetForPointer Value P,
unsigned  Size,
bool *  New = 0
 

getAliasSetForPointer - Return the alias set that the specified pointer lives in. If the New argument is non-null, this method sets the value to true if a new alias set is created to contain the pointer (because the pointer didn't alias anything).

Definition at line 237 of file AliasSetTracker.cpp.

References llvm::AliasSet::addPointer(), and AliasSet.

AliasSet* llvm::AliasSetTracker::getAliasSetForPointerIfExists Value P,
unsigned  Size
[inline]
 

getAliasSetForPointerIfExists - Return the alias set containing the location specified if one exists, otherwise return null.

Definition at line 306 of file AliasSetTracker.h.

const ilist<AliasSet>& llvm::AliasSetTracker::getAliasSets  )  const [inline]
 

getAliasSets - Return the alias sets that are active.

Definition at line 296 of file AliasSetTracker.h.

void AliasSetTracker::print std::ostream &  OS  )  const
 

Definition at line 509 of file AliasSetTracker.cpp.

References begin(), E, end(), and I.

Referenced by dump(), and llvm::operator<<().

void AliasSetTracker::remove AliasSet AS  ) 
 

remove - Remove the specified (potentially non-empty) alias set from the tracker.

Definition at line 356 of file AliasSetTracker.cpp.

References llvm::AliasSet::begin(), deleteValue(), llvm::AliasSet::end(), llvm::AliasSet::iterator::getPointer(), and I.

bool AliasSetTracker::remove Instruction I  ) 
 

Definition at line 410 of file AliasSetTracker.cpp.

References remove().

bool llvm::AliasSetTracker::remove InvokeInst II  )  [inline]
 

Definition at line 290 of file AliasSetTracker.h.

References remove().

bool llvm::AliasSetTracker::remove CallInst CI  )  [inline]
 

Definition at line 289 of file AliasSetTracker.h.

References remove().

bool AliasSetTracker::remove CallSite  CS  ) 
 

Definition at line 399 of file AliasSetTracker.cpp.

References llvm::AliasAnalysis::doesNotAccessMemory(), F, llvm::CallSite::getCalledFunction(), and remove().

bool AliasSetTracker::remove FreeInst FI  ) 
 

Definition at line 392 of file AliasSetTracker.cpp.

References llvm::User::getOperand(), and remove().

bool AliasSetTracker::remove StoreInst SI  ) 
 

Definition at line 384 of file AliasSetTracker.cpp.

References llvm::User::getOperand(), llvm::AliasAnalysis::getTargetData(), llvm::Value::getType(), llvm::TargetData::getTypeSize(), and remove().

bool AliasSetTracker::remove LoadInst LI  ) 
 

Definition at line 376 of file AliasSetTracker.cpp.

References llvm::User::getOperand(), llvm::AliasAnalysis::getTargetData(), llvm::Value::getType(), llvm::TargetData::getTypeSize(), and remove().

bool AliasSetTracker::remove Value Ptr,
unsigned  Size
 

remove methods - These methods are used to remove all entries that might be aliased by the specified instruction. These methods return true if any alias sets were eliminated.

Definition at line 369 of file AliasSetTracker.cpp.

Referenced by remove().


Friends And Related Function Documentation

friend class AliasSet [friend]
 

Definition at line 348 of file AliasSetTracker.h.

Referenced by add(), and getAliasSetForPointer().


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