LLVM API Documentation
#include <AliasSetTracker.h>
Collaboration diagram for llvm::AliasSetTracker:
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) |
void | clear () |
const ilist< AliasSet > & | getAliasSets () const |
AliasSet & | getAliasSetForPointer (Value *P, unsigned Size, bool *New=0) |
AliasSet * | getAliasSetForPointerIfExists (Value *P, unsigned Size) |
bool | containsPointer (Value *P, unsigned Size) const |
AliasAnalysis & | getAliasAnalysis () 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 |
Definition at line 253 of file AliasSetTracker.h.
typedef ilist<AliasSet>::iterator llvm::AliasSetTracker::iterator |
Definition at line 347 of file AliasSetTracker.h.
typedef ilist<AliasSet>::const_iterator llvm::AliasSetTracker::const_iterator |
Definition at line 348 of file AliasSetTracker.h.
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 263 of file AliasSetTracker.h.
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 261 of file AliasSetTracker.cpp.
Referenced by add().
bool AliasSetTracker::add | ( | LoadInst * | LI | ) |
Definition at line 268 of file AliasSetTracker.cpp.
References llvm::AliasAnalysis::getTargetData(), llvm::TargetData::getTypeSize(), LI, and llvm::AliasSet::setVolatile().
bool AliasSetTracker::add | ( | StoreInst * | SI | ) |
Definition at line 277 of file AliasSetTracker.cpp.
References llvm::StoreInst::getOperand(), llvm::AliasAnalysis::getTargetData(), llvm::Value::getType(), llvm::TargetData::getTypeSize(), llvm::StoreInst::isVolatile(), llvm::AliasSet::setVolatile(), and Val.
bool AliasSetTracker::add | ( | FreeInst * | FI | ) |
Definition at line 287 of file AliasSetTracker.cpp.
References llvm::UnaryInstruction::getOperand(), and llvm::AliasSet::setVolatile().
bool AliasSetTracker::add | ( | CallSite | CS | ) |
Definition at line 298 of file AliasSetTracker.cpp.
References llvm::AliasSet::addCallSite(), AliasSet, llvm::AliasAnalysis::doesNotAccessMemory(), and llvm::CallSite::getCalledFunction().
bool llvm::AliasSetTracker::add | ( | CallInst * | CI | ) | [inline] |
bool llvm::AliasSetTracker::add | ( | InvokeInst * | II | ) | [inline] |
bool AliasSetTracker::add | ( | Instruction * | I | ) |
void AliasSetTracker::add | ( | BasicBlock & | BB | ) |
Definition at line 330 of file AliasSetTracker.cpp.
References add(), BB, llvm::BasicBlock::begin(), E, and llvm::BasicBlock::end().
void AliasSetTracker::add | ( | const AliasSetTracker & | AST | ) |
Definition at line 335 of file AliasSetTracker.cpp.
References AA, llvm::AliasSet::AccessTy, add(), AST, llvm::AliasSet::begin(), begin(), llvm::AliasSet::CallSites, E, llvm::AliasSet::end(), end(), llvm::AliasSet::iterator::getPointer(), llvm::AliasSet::iterator::getSize(), and llvm::X.
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 386 of file AliasSetTracker.cpp.
Referenced by remove().
bool AliasSetTracker::remove | ( | LoadInst * | LI | ) |
Definition at line 393 of file AliasSetTracker.cpp.
References llvm::AliasAnalysis::getTargetData(), llvm::TargetData::getTypeSize(), LI, and remove().
bool AliasSetTracker::remove | ( | StoreInst * | SI | ) |
Definition at line 401 of file AliasSetTracker.cpp.
References llvm::StoreInst::getOperand(), llvm::AliasAnalysis::getTargetData(), llvm::Value::getType(), llvm::TargetData::getTypeSize(), and remove().
bool AliasSetTracker::remove | ( | FreeInst * | FI | ) |
Definition at line 409 of file AliasSetTracker.cpp.
References llvm::UnaryInstruction::getOperand(), and remove().
bool AliasSetTracker::remove | ( | CallSite | CS | ) |
Definition at line 416 of file AliasSetTracker.cpp.
References llvm::AliasAnalysis::doesNotAccessMemory(), llvm::CallSite::getCalledFunction(), and remove().
bool llvm::AliasSetTracker::remove | ( | CallInst * | CI | ) | [inline] |
bool llvm::AliasSetTracker::remove | ( | InvokeInst * | II | ) | [inline] |
bool AliasSetTracker::remove | ( | Instruction * | I | ) |
void AliasSetTracker::remove | ( | AliasSet & | AS | ) |
remove - Remove the specified (potentially non-empty) alias set from the tracker.
Definition at line 361 of file AliasSetTracker.cpp.
References llvm::AliasSet::CallSites, llvm::AliasSet::empty(), llvm::AliasSet::PtrList, llvm::AliasSet::RefCount, and llvm::AliasSet::removeFromTracker().
void llvm::AliasSetTracker::clear | ( | ) | [inline] |
Definition at line 301 of file AliasSetTracker.h.
const ilist<AliasSet>& llvm::AliasSetTracker::getAliasSets | ( | ) | const [inline] |
getAliasSets - Return the alias sets that are active.
Definition at line 308 of file AliasSetTracker.h.
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 239 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 318 of file AliasSetTracker.h.
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 211 of file AliasSetTracker.cpp.
AliasAnalysis& llvm::AliasSetTracker::getAliasAnalysis | ( | ) | const [inline] |
getAliasAnalysis - Return the underlying alias analysis object used by this tracker.
Definition at line 329 of file AliasSetTracker.h.
Referenced by llvm::AliasSet::mergeSetIn().
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 446 of file AliasSetTracker.cpp.
References llvm::AliasAnalysis::deleteValue(), llvm::AliasAnalysis::doesNotAccessMemory(), llvm::AliasSet::dropRef(), llvm::CallSite::get(), llvm::CallSite::getCalledFunction(), llvm::CallSite::getInstruction(), and llvm::AliasSet::removeCallSite().
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 481 of file AliasSetTracker.cpp.
References llvm::AliasSet::addPointer(), and llvm::AliasAnalysis::copyValue().
const_iterator llvm::AliasSetTracker::begin | ( | ) | const [inline] |
Definition at line 350 of file AliasSetTracker.h.
Referenced by add(), containsPointer(), and print().
const_iterator llvm::AliasSetTracker::end | ( | ) | const [inline] |
Definition at line 351 of file AliasSetTracker.h.
Referenced by add(), containsPointer(), and print().
iterator llvm::AliasSetTracker::begin | ( | ) | [inline] |
Definition at line 353 of file AliasSetTracker.h.
iterator llvm::AliasSetTracker::end | ( | ) | [inline] |
Definition at line 354 of file AliasSetTracker.h.
void AliasSetTracker::print | ( | std::ostream & | OS | ) | const |
Definition at line 537 of file AliasSetTracker.cpp.
References begin(), E, and end().
Referenced by dump(), and llvm::operator<<().
void AliasSetTracker::dump | ( | ) | const |
friend class AliasSet [friend] |