LLVM  3.7.0
Public Member Functions | List of all members
llvm::Inliner Struct Referenceabstract

Inliner - This class contains all of the helper code which is used to perform the inlining operations that do not depend on the policy. More...

#include <InlinerPass.h>

Inheritance diagram for llvm::Inliner:
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Collaboration diagram for llvm::Inliner:
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Public Member Functions

 Inliner (char &ID)
 
 Inliner (char &ID, int Threshold, bool InsertLifetime)
 
void getAnalysisUsage (AnalysisUsage &Info) const override
 getAnalysisUsage - For this class, we declare that we require and preserve the call graph. More...
 
bool runOnSCC (CallGraphSCC &SCC) override
 runOnSCC - This method should be implemented by the subclass to perform whatever action is necessary for the specified SCC. More...
 
bool doFinalization (CallGraph &CG) override
 Remove now-dead linkonce functions at the end of processing to avoid breaking the SCC traversal. More...
 
unsigned getInlineThreshold () const
 This method returns the value specified by the -inline-threshold value, specified on the command line. More...
 
unsigned getInlineThreshold (CallSite CS) const
 Calculate the inline threshold for given Caller. More...
 
virtual InlineCost getInlineCost (CallSite CS)=0
 getInlineCost - This method must be implemented by the subclass to determine the cost of inlining the specified call site. More...
 
bool removeDeadFunctions (CallGraph &CG, bool AlwaysInlineOnly=false)
 removeDeadFunctions - Remove dead functions. More...
 
- Public Member Functions inherited from llvm::CallGraphSCCPass
 CallGraphSCCPass (char &pid)
 
PasscreatePrinterPass (raw_ostream &O, const std::string &Banner) const override
 createPrinterPass - Get a pass that prints the Module corresponding to a CallGraph. More...
 
virtual bool doInitialization (CallGraph &CG)
 doInitialization - This method is called before the SCC's of the program has been processed, allowing the pass to do initialization as necessary. More...
 
void assignPassManager (PMStack &PMS, PassManagerType PMT) override
 Assign pass manager to manager 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)
 
virtual ~Pass ()
 
PassKind getPassKind () const
 
virtual const char * 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 &O, const Module *M) const
 print - Print out the internal state of the pass. More...
 
void dump () const
 
virtual void preparePassManager (PMStack &)
 Check if available pass managers are suitable for this pass or not. More...
 
void setResolver (AnalysisResolver *AR)
 
AnalysisResolvergetResolver () const
 
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 ImmutablePassgetAsImmutablePass ()
 
virtual PMDataManagergetAsPMDataManager ()
 
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)
 

Additional Inherited Members

- Static Public Member Functions inherited from llvm::Pass
static const PassInfolookupPassInfo (const void *TI)
 
static const PassInfolookupPassInfo (StringRef Arg)
 
static PasscreatePass (AnalysisID ID)
 

Detailed Description

Inliner - This class contains all of the helper code which is used to perform the inlining operations that do not depend on the policy.

Definition at line 32 of file InlinerPass.h.

Constructor & Destructor Documentation

Inliner::Inliner ( char &  ID)
explicit

Definition at line 67 of file Inliner.cpp.

Inliner::Inliner ( char &  ID,
int  Threshold,
bool  InsertLifetime 
)
explicit

Definition at line 70 of file Inliner.cpp.

Member Function Documentation

bool Inliner::doFinalization ( CallGraph CG)
overridevirtual

Remove now-dead linkonce functions at the end of processing to avoid breaking the SCC traversal.

Reimplemented from llvm::CallGraphSCCPass.

Definition at line 625 of file Inliner.cpp.

References removeDeadFunctions().

void Inliner::getAnalysisUsage ( AnalysisUsage AU) const
overridevirtual

getAnalysisUsage - For this class, we declare that we require and preserve the call graph.

For this class, we declare that we require and preserve the call graph.

If the derived class implements this method, it should always explicitly call the implementation here.

Reimplemented from llvm::CallGraphSCCPass.

Definition at line 78 of file Inliner.cpp.

References llvm::AnalysisUsage::addRequired(), and llvm::CallGraphSCCPass::getAnalysisUsage().

virtual InlineCost llvm::Inliner::getInlineCost ( CallSite  CS)
pure virtual

getInlineCost - This method must be implemented by the subclass to determine the cost of inlining the specified call site.

If the cost returned is greater than the current inline threshold, the call site is not inlined.

unsigned llvm::Inliner::getInlineThreshold ( ) const
inline

This method returns the value specified by the -inline-threshold value, specified on the command line.

This is typically not directly needed.

Definition at line 53 of file InlinerPass.h.

unsigned Inliner::getInlineThreshold ( CallSite  CS) const

Calculate the inline threshold for given Caller.

This threshold is lower if the caller is marked with OptimizeForSize and -inline-threshold is not given on the comand line. It is higher if the callee is marked with the inlinehint attribute.

Definition at line 260 of file Inliner.cpp.

References llvm::Attribute::Cold, ColdThreshold, llvm::CallSiteBase< FunTy, BBTy, ValTy, UserTy, InstrTy, CallTy, InvokeTy, IterTy >::getCalledFunction(), llvm::CallSiteBase< FunTy, BBTy, ValTy, UserTy, InstrTy, CallTy, InvokeTy, IterTy >::getCaller(), llvm::Function::hasFnAttribute(), HintThreshold, llvm::Attribute::InlineHint, InlineLimit, llvm::GlobalValue::isDeclaration(), llvm::Attribute::MinSize, llvm::Attribute::OptimizeForSize, and OptSizeThreshold.

bool Inliner::removeDeadFunctions ( CallGraph CG,
bool  AlwaysInlineOnly = false 
)
bool Inliner::runOnSCC ( CallGraphSCC SCC)
overridevirtual

runOnSCC - This method should be implemented by the subclass to perform whatever action is necessary for the specified SCC.

Note that non-recursive (or only self-recursive) functions will have an SCC size of 1, where recursive portions of the call graph will have SCC size > 1.

SCC passes that add or delete functions to the SCC are required to update the SCC list, otherwise stale pointers may be dereferenced.

Implements llvm::CallGraphSCCPass.

Definition at line 431 of file Inliner.cpp.

References llvm::SmallVectorTemplateCommon< T >::back(), llvm::SmallVectorTemplateCommon< T >::begin(), llvm::CS, llvm::dbgs(), DEBUG, DEBUG_TYPE, llvm::emitOptimizationRemark(), llvm::emitOptimizationRemarkMissed(), llvm::SmallVectorBase::empty(), llvm::SmallVectorImpl< T >::erase(), llvm::Instruction::eraseFromParent(), F(), llvm::CallSiteBase< FunTy, BBTy, ValTy, UserTy, InstrTy, CallTy, InvokeTy, IterTy >::getCalledFunction(), llvm::CallSiteBase< FunTy, BBTy, ValTy, UserTy, InstrTy, CallTy, InvokeTy, IterTy >::getCaller(), llvm::Function::getContext(), llvm::Instruction::getDebugLoc(), llvm::CallSiteBase< FunTy, BBTy, ValTy, UserTy, InstrTy, CallTy, InvokeTy, IterTy >::getInstruction(), llvm::Value::getName(), llvm::GlobalValue::hasLocalLinkage(), I, InlineCallIfPossible(), llvm::InlineFunctionInfo::InlinedCalls, InlineHistoryIncludes(), llvm::GlobalValue::isDeclaration(), llvm::isInstructionTriviallyDead(), llvm::SmallVectorTemplateBase< T, isPodLike< T >::value >::pop_back(), llvm::SmallVectorTemplateBase< T, isPodLike< T >::value >::push_back(), llvm::CallGraph::removeFunctionFromModule(), llvm::SmallVectorTemplateCommon< T >::size(), std::swap(), and llvm::Value::use_empty().


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