LLVM
8.0.1
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A pass that runs on each Region in a function. More...
#include "llvm/Analysis/RegionPass.h"
Public Member Functions | |
RegionPass (char &pid) | |
To be implemented by every RegionPass | |
virtual bool | runOnRegion (Region *R, RGPassManager &RGM)=0 |
Run the pass on a specific Region. More... | |
Pass * | createPrinterPass (raw_ostream &O, const std::string &Banner) const override |
Get a pass to print the LLVM IR in the region. More... | |
virtual bool | doInitialization (Region *R, RGPassManager &RGM) |
virtual bool | doFinalization () |
PassManager API | |
void | preparePassManager (PMStack &PMS) override |
Check if available pass managers are suitable for this pass or not. More... | |
void | assignPassManager (PMStack &PMS, PassManagerType PMT=PMT_RegionPassManager) override |
Assign pass manager to manage this pass. More... | |
PassManagerType | getPotentialPassManagerType () const override |
Return what kind of Pass Manager can manage this pass. More... | |
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. More... | |
AnalysisID | getPassID () const |
getPassID - Return the PassID number that corresponds to this pass. More... | |
virtual bool | doInitialization (Module &) |
doInitialization - Virtual method overridden by subclasses to do any necessary initialization before any pass is run. More... | |
virtual bool | doFinalization (Module &) |
doFinalization - Virtual method overriden by subclasses to do any necessary clean up after all passes have run. More... | |
virtual void | print (raw_ostream &OS, const Module *M) const |
print - Print out the internal state of the pass. More... | |
void | dump () const |
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. More... | |
virtual void | releaseMemory () |
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. More... | |
virtual void * | getAdjustedAnalysisPointer (AnalysisID ID) |
getAdjustedAnalysisPointer - This method is used when a pass implements an analysis interface through multiple inheritance. More... | |
virtual ImmutablePass * | getAsImmutablePass () |
virtual PMDataManager * | getAsPMDataManager () |
virtual void | verifyAnalysis () const |
verifyAnalysis() - This member can be implemented by a analysis pass to check state of analysis information. More... | |
virtual void | dumpPassStructure (unsigned Offset=0) |
template<typename AnalysisType > | |
AnalysisType * | getAnalysisIfAvailable () const |
getAnalysisIfAvailable<AnalysisType>() - Subclasses use this function to get analysis information that might be around, for example to update it. More... | |
bool | mustPreserveAnalysisID (char &AID) const |
mustPreserveAnalysisID - This method serves the same function as getAnalysisIfAvailable, but works if you just have an AnalysisID. More... | |
template<typename AnalysisType > | |
AnalysisType & | getAnalysis () const |
getAnalysis<AnalysisType>() - This function is used by subclasses to get to the analysis information that they claim to use by overriding the getAnalysisUsage function. More... | |
template<typename AnalysisType > | |
AnalysisType & | getAnalysis (Function &F) |
getAnalysis<AnalysisType>() - This function is used by subclasses to get to the analysis information that they claim to use by overriding the getAnalysisUsage function. More... | |
template<typename AnalysisType > | |
AnalysisType & | getAnalysisID (AnalysisID PI) const |
template<typename AnalysisType > | |
AnalysisType & | getAnalysisID (AnalysisID PI, Function &F) |
Protected Member Functions | |
bool | skipRegion (Region &R) const |
Optional passes call this function to check whether the pass should be skipped. More... | |
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) |
A pass that runs on each Region in a function.
RegionPass is managed by RGPassManager.
Definition at line 34 of file RegionPass.h.
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inlineexplicit |
Definition at line 36 of file RegionPass.h.
References createPrinterPass(), llvm::Pass::doFinalization(), llvm::Pass::doInitialization(), llvm::RISCVFenceField::O, and runOnRegion().
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overridevirtual |
Assign pass manager to manage this pass.
Reimplemented from llvm::Pass.
Definition at line 240 of file RegionPass.cpp.
References llvm::PMDataManager::add(), llvm::PMTopLevelManager::addIndirectPassManager(), assert(), llvm::PMStack::empty(), llvm::PMDataManager::getPassManagerType(), llvm::PMT_RegionPassManager, llvm::PMStack::pop(), llvm::PMDataManager::populateInheritedAnalysis(), llvm::PMStack::push(), llvm::RGPassManager::RGPassManager(), llvm::PMTopLevelManager::schedulePass(), llvm::PMStack::top(), and llvm::PMDataManager::TPM.
Referenced by doFinalization().
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overridevirtual |
Get a pass to print the LLVM IR in the region.
Get the printer pass.
O | The output stream to print the Region. |
Banner | The banner to separate different printed passes. |
Implements llvm::Pass.
Definition at line 277 of file RegionPass.cpp.
Referenced by RegionPass().
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inlinevirtual |
Definition at line 65 of file RegionPass.h.
References assignPassManager(), llvm::PMT_RegionPassManager, and preparePassManager().
Referenced by llvm::RGPassManager::runOnFunction().
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inlinevirtual |
Definition at line 64 of file RegionPass.h.
Referenced by llvm::RGPassManager::runOnFunction().
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inlineoverridevirtual |
Return what kind of Pass Manager can manage this pass.
Reimplemented from llvm::Pass.
Definition at line 77 of file RegionPass.h.
References llvm::PMT_RegionPassManager, and skipRegion().
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overridevirtual |
Check if available pass managers are suitable for this pass or not.
Reimplemented from llvm::Pass.
Definition at line 223 of file RegionPass.cpp.
References llvm::PMStack::empty(), llvm::PMDataManager::getPassManagerType(), llvm::PMT_RegionPassManager, llvm::PMStack::pop(), llvm::PMDataManager::preserveHigherLevelAnalysis(), and llvm::PMStack::top().
Referenced by doFinalization().
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pure virtual |
Run the pass on a specific Region.
Accessing regions not contained in the current region is not allowed.
R | The region this pass is run on. |
RGM | The RegionPassManager that manages this Pass. |
Referenced by RegionPass(), and llvm::RGPassManager::runOnFunction().
Optional passes call this function to check whether the pass should be skipped.
This is the case when optimization bisect is over the limit.
Definition at line 282 of file RegionPass.cpp.
References llvm::dbgs(), F(), llvm::Function::getContext(), llvm::RegionBase< Tr >::getEntry(), llvm::Function::getEntryBlock(), llvm::Value::getName(), llvm::LLVMContext::getOptPassGate(), llvm::RGPassManager::getPassName(), llvm::Function::hasFnAttribute(), LLVM_DEBUG, llvm::Attribute::OptimizeNone, and llvm::OptPassGate::shouldRunPass().
Referenced by getPotentialPassManagerType().