llvm::IdentifyingPassPtr Class Reference

Discriminated union of Pass ID types. More...

#include "llvm/CodeGen/TargetPassConfig.h"

Public Member Functions
	IdentifyingPassPtr ()
	IdentifyingPassPtr (AnalysisID IDPtr)
	IdentifyingPassPtr (Pass *InstancePtr)
bool	isValid () const
bool	isInstance () const
AnalysisID	getID () const
Pass *	getInstance () const

Detailed Description

Discriminated union of Pass ID types.

The PassConfig API prefers dealing with IDs because they are safer and more efficient. IDs decouple configuration from instantiation. This way, when a pass is overriden, it isn't unnecessarily instantiated. It is also unsafe to refer to a Pass pointer after adding it to a pass manager, which deletes redundant pass instances.

However, it is convient to directly instantiate target passes with non-default ctors. These often don't have a registered PassInfo. Rather than force all target passes to implement the pass registry boilerplate, allow the PassConfig API to handle either type.

AnalysisID is sadly char*, so PointerIntPair won't work.

Definition at line 53 of file TargetPassConfig.h.

Constructor & Destructor Documentation

IdentifyingPassPtr() [1/3]

llvm::IdentifyingPassPtr::IdentifyingPassPtr ( )

inline

Definition at line 61 of file TargetPassConfig.h.

References P.

IdentifyingPassPtr() [2/3]

llvm::IdentifyingPassPtr::IdentifyingPassPtr ( AnalysisID IDPtr )

inline

Definition at line 62 of file TargetPassConfig.h.

References ID.

IdentifyingPassPtr() [3/3]

llvm::IdentifyingPassPtr::IdentifyingPassPtr ( Pass * InstancePtr )

inline

Definition at line 63 of file TargetPassConfig.h.

References P.

Member Function Documentation

getID()

AnalysisID llvm::IdentifyingPassPtr::getID ( ) const

inline

Definition at line 68 of file TargetPassConfig.h.

References assert(), and ID.

Referenced by llvm::TargetPassConfig::addPass(), llvm::TargetPassConfig::insertPass(), and llvm::TargetPassConfig::isPassSubstitutedOrOverridden().

getInstance()

Pass * llvm::IdentifyingPassPtr::getInstance ( ) const

inline

Definition at line 73 of file TargetPassConfig.h.

References assert(), and P.

Referenced by llvm::TargetPassConfig::addPass(), and llvm::TargetPassConfig::insertPass().

isInstance()

bool llvm::IdentifyingPassPtr::isInstance ( ) const

inline

Definition at line 66 of file TargetPassConfig.h.

Referenced by llvm::TargetPassConfig::addPass(), llvm::TargetPassConfig::insertPass(), and llvm::TargetPassConfig::isPassSubstitutedOrOverridden().

isValid()

bool llvm::IdentifyingPassPtr::isValid ( ) const

inline

Definition at line 65 of file TargetPassConfig.h.

References P.

Referenced by llvm::TargetPassConfig::addPass(), and llvm::TargetPassConfig::isPassSubstitutedOrOverridden().

Member Data Documentation

ID

AnalysisID llvm::IdentifyingPassPtr::ID

Definition at line 55 of file TargetPassConfig.h.

Referenced by getID(), and IdentifyingPassPtr().

P

Pass* llvm::IdentifyingPassPtr::P

Definition at line 56 of file TargetPassConfig.h.

Referenced by getInstance(), IdentifyingPassPtr(), IdentifyingPassPtr(), and isValid().

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The documentation for this class was generated from the following file:

• include/llvm/CodeGen/TargetPassConfig.h