LLVM: llvm::AssumptionCacheTracker Class Reference (original) (raw)
An immutable pass that tracks lazily created [AssumptionCache](classllvm%5F1%5F1AssumptionCache.html "A cache of @llvm.assume calls within a function.") objects. More...
#include "[llvm/Analysis/AssumptionCache.h](AssumptionCache%5F8h%5Fsource.html)"
| Public Member Functions | |
|---|---|
| AssumptionCache & | getAssumptionCache (Function &F) |
| Get the cached assumptions for a function. | |
| AssumptionCache * | lookupAssumptionCache (Function &F) |
| Return the cached assumptions for a function if it has already been scanned. | |
| AssumptionCacheTracker () | |
| ~AssumptionCacheTracker () override | |
| void | releaseMemory () override |
| 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. | |
| void | verifyAnalysis () const override |
| verifyAnalysis() - This member can be implemented by a analysis pass to check state of analysis information. | |
| bool | doFinalization (Module &) override |
| doFinalization - Virtual method overriden by subclasses to do any necessary clean up after all passes have run. | |
| Public Member Functions inherited from llvm::ImmutablePass | |
| ImmutablePass (char &pid) | |
| ~ImmutablePass () override | |
| virtual void | initializePass () |
| initializePass - This method may be overriden by immutable passes to allow them to perform various initialization actions they require. | |
| ImmutablePass * | getAsImmutablePass () override |
| bool | runOnModule (Module &) override |
| ImmutablePasses are never run. | |
| Public Member Functions inherited from llvm::ModulePass | |
| ModulePass (char &pid) | |
| ~ModulePass () override | |
| Pass * | createPrinterPass (raw_ostream &OS, const std::string &Banner) const override |
| createPrinterPass - Get a module printer pass. | |
| void | assignPassManager (PMStack &PMS, PassManagerType T) override |
| Find appropriate Module Pass Manager in the PM Stack and add self into that manager. | |
| PassManagerType | getPotentialPassManagerType () const override |
| Return what kind of Pass Manager can manage this pass. | |
| Public Member Functions inherited from llvm::Pass | |
| Pass (PassKind K, char &pid) | |
| Pass (const Pass &)=delete | |
| Pass & | operator= (const Pass &)=delete |
| virtual | ~Pass () |
| PassKind | getPassKind () const |
| virtual StringRef | getPassName () const |
| getPassName - Return a nice clean name for a pass. | |
| StringRef | getPassArgument () const |
| Return a nice clean name for a pass corresponding to that used to enable the pass in opt. | |
| AnalysisID | getPassID () const |
| getPassID - Return the PassID number that corresponds to this pass. | |
| virtual bool | doInitialization (Module &) |
| doInitialization - Virtual method overridden by subclasses to do any necessary initialization before any pass is run. | |
| virtual void | print (raw_ostream &OS, const Module *M) const |
| print - Print out the internal state of the pass. | |
| void | dump () const |
| virtual void | preparePassManager (PMStack &) |
| Check if available pass managers are suitable for this pass or not. | |
| void | setResolver (AnalysisResolver *AR) |
| AnalysisResolver * | getResolver () const |
| virtual void | getAnalysisUsage (AnalysisUsage &) const |
| getAnalysisUsage - This function should be overriden by passes that need analysis information to do their job. | |
| virtual PMDataManager * | getAsPMDataManager () |
| virtual void | dumpPassStructure (unsigned Offset=0) |
| template | |
| AnalysisType * | getAnalysisIfAvailable () const |
| getAnalysisIfAvailable() - Subclasses use this function to get analysis information that might be around, for example to update it. | |
| bool | mustPreserveAnalysisID (char &AID) const |
| mustPreserveAnalysisID - This method serves the same function as getAnalysisIfAvailable, but works if you just have an AnalysisID. | |
| template | |
| AnalysisType & | getAnalysis () const |
| getAnalysis() - This function is used by subclasses to get to the analysis information that they claim to use by overriding the getAnalysisUsage function. | |
| template | |
| AnalysisType & | getAnalysis (Function &F, bool *Changed=nullptr) |
| getAnalysis() - This function is used by subclasses to get to the analysis information that they claim to use by overriding the getAnalysisUsage function. | |
| template | |
| AnalysisType & | getAnalysisID (AnalysisID PI) const |
| template | |
| AnalysisType & | getAnalysisID (AnalysisID PI, Function &F, bool *Changed=nullptr) |
| Static Public Attributes | |
|---|---|
| static char | ID = 0 |
| Additional Inherited Members | |
|---|---|
| Static Public Member Functions inherited from llvm::Pass | |
| static const PassInfo * | lookupPassInfo (const void *TI) |
| static const PassInfo * | lookupPassInfo (StringRef Arg) |
| static Pass * | createPass (AnalysisID ID) |
| Protected Member Functions inherited from llvm::ModulePass | |
| bool | skipModule (const Module &M) const |
| Optional passes call this function to check whether the pass should be skipped. |
An immutable pass that tracks lazily created [AssumptionCache](classllvm%5F1%5F1AssumptionCache.html "A cache of @llvm.assume calls within a function.") objects.
This is essentially a workaround for the legacy pass manager's weaknesses which associates each assumption cache with Function and clears it if the function is deleted. The nature of the AssumptionCache is that it is not invalidated by any changes to the function body and so this is sufficient to be conservatively correct.
Definition at line 211 of file AssumptionCache.h.
| AssumptionCacheTracker::AssumptionCacheTracker | ( | ) |
|---|
◆ ~AssumptionCacheTracker()
| AssumptionCacheTracker::~AssumptionCacheTracker ( ) | overridedefault |
|---|
◆ doFinalization()
| bool llvm::AssumptionCacheTracker::doFinalization ( Module & ) | inlineoverridevirtual |
|---|
◆ getAssumptionCache()
◆ lookupAssumptionCache()
Return the cached assumptions for a function if it has already been scanned.
Otherwise return nullptr.
Definition at line 274 of file AssumptionCache.cpp.
◆ releaseMemory()
| void llvm::AssumptionCacheTracker::releaseMemory ( ) | inlineoverridevirtual |
|---|
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 248 of file AssumptionCache.h.
References verifyAnalysis().
◆ verifyAnalysis()
| void AssumptionCacheTracker::verifyAnalysis ( ) const | overridevirtual |
|---|
verifyAnalysis() - This member can be implemented by a analysis pass to check state of analysis information.
Reimplemented from llvm::Pass.
Definition at line 281 of file AssumptionCache.cpp.
References B(), llvm::cast(), llvm::SmallPtrSetImpl< PtrType >::count(), I, II, llvm::SmallPtrSetImpl< PtrType >::insert(), llvm::PatternMatch::m_Intrinsic(), llvm::PatternMatch::match(), llvm::report_fatal_error(), and VerifyAssumptionCache.
Referenced by doFinalization(), and releaseMemory().
◆ ID
| char AssumptionCacheTracker::ID = 0 | static |
|---|
The documentation for this class was generated from the following files:
- include/llvm/Analysis/AssumptionCache.h
- lib/Analysis/AssumptionCache.cpp