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 246 of file AliasSetTracker.h.
typedef ilist<AliasSet>::const_iterator llvm::AliasSetTracker::const_iterator |
Definition at line 341 of file AliasSetTracker.h.
typedef ilist<AliasSet>::iterator llvm::AliasSetTracker::iterator |
Definition at line 340 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 256 of file AliasSetTracker.h.
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(), I, and llvm::X.
void AliasSetTracker::add | ( | BasicBlock & | BB | ) |
Definition at line 330 of file AliasSetTracker.cpp.
References add(), BB, llvm::BasicBlock::begin(), E, llvm::BasicBlock::end(), and I.
bool AliasSetTracker::add | ( | Instruction * | I | ) |
bool llvm::AliasSetTracker::add | ( | InvokeInst * | II | ) | [inline] |
bool llvm::AliasSetTracker::add | ( | CallInst * | CI | ) | [inline] |
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 AliasSetTracker::add | ( | FreeInst * | FI | ) |
Definition at line 287 of file AliasSetTracker.cpp.
References llvm::UnaryInstruction::getOperand(), 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 | ( | 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 | ( | 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().
iterator llvm::AliasSetTracker::begin | ( | ) | [inline] |
Definition at line 346 of file AliasSetTracker.h.
const_iterator llvm::AliasSetTracker::begin | ( | ) | const [inline] |
Definition at line 343 of file AliasSetTracker.h.
Referenced by add(), containsPointer(), and print().
void llvm::AliasSetTracker::clear | ( | ) | [inline] |
Definition at line 294 of file AliasSetTracker.h.
bool AliasSetTracker::containsPointer | ( | Value * | P, | |
unsigned | Size | |||
) | const |
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 458 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 434 of file AliasSetTracker.cpp.
References llvm::AliasAnalysis::deleteValue(), llvm::AliasSet::dropRef(), and I.
Referenced by remove().
void AliasSetTracker::dump | ( | ) | const |
iterator llvm::AliasSetTracker::end | ( | ) | [inline] |
Definition at line 347 of file AliasSetTracker.h.
const_iterator llvm::AliasSetTracker::end | ( | ) | const [inline] |
Definition at line 344 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 322 of file AliasSetTracker.h.
Referenced by llvm::AliasSet::mergeSetIn().
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 311 of file AliasSetTracker.h.
const ilist<AliasSet>& llvm::AliasSetTracker::getAliasSets | ( | ) | const [inline] |
getAliasSets - Return the alias sets that are active.
Definition at line 301 of file AliasSetTracker.h.
void AliasSetTracker::print | ( | std::ostream & | OS | ) | const |
Definition at line 514 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 361 of file AliasSetTracker.cpp.
References llvm::AliasSet::begin(), deleteValue(), llvm::AliasSet::end(), llvm::AliasSet::iterator::getPointer(), and I.
bool AliasSetTracker::remove | ( | Instruction * | I | ) |
bool llvm::AliasSetTracker::remove | ( | InvokeInst * | II | ) | [inline] |
bool llvm::AliasSetTracker::remove | ( | CallInst * | CI | ) | [inline] |
bool AliasSetTracker::remove | ( | CallSite | CS | ) |
Definition at line 404 of file AliasSetTracker.cpp.
References llvm::AliasAnalysis::doesNotAccessMemory(), llvm::CallSite::getCalledFunction(), and remove().
bool AliasSetTracker::remove | ( | FreeInst * | FI | ) |
Definition at line 397 of file AliasSetTracker.cpp.
References llvm::UnaryInstruction::getOperand(), and remove().
bool AliasSetTracker::remove | ( | StoreInst * | SI | ) |
Definition at line 389 of file AliasSetTracker.cpp.
References llvm::StoreInst::getOperand(), llvm::AliasAnalysis::getTargetData(), llvm::Value::getType(), llvm::TargetData::getTypeSize(), and remove().
bool AliasSetTracker::remove | ( | LoadInst * | LI | ) |
Definition at line 381 of file AliasSetTracker.cpp.
References llvm::AliasAnalysis::getTargetData(), llvm::TargetData::getTypeSize(), LI, 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 374 of file AliasSetTracker.cpp.
Referenced by remove().
friend class AliasSet [friend] |