llvm::LastRunTrackingInfo Class Reference

This class is used to track the last run of a set of module/function passes. More...

#include "llvm/Analysis/LastRunTrackingAnalysis.h"

Public Types
using	PassID = const void *
using	OptionPtr = const void *
using	CompatibilityCheckFn = std::function<bool(OptionPtr)>

Public Member Functions
template<typename OptionT>
bool	shouldSkip (PassID ID, const OptionT &Opt) const
	Check if we should skip a pass.
bool	shouldSkip (PassID ID) const
template<typename OptionT>
void	update (PassID ID, bool Changed, const OptionT &Opt)
	Update the tracking info.
void	update (PassID ID, bool Changed)

Detailed Description

This class is used to track the last run of a set of module/function passes.

Invalidation are conservatively handled by the pass manager if a pass doesn't explicitly preserve the result. If we want to skip a pass, we should define a unique ID PassID to identify the pass, which is usually a pointer to a static member. If a pass has parameters, they should be stored in a struct OptionT with a method bool isCompatibleWith(const OptionT& LastOpt) const to check compatibility.

Definition at line 47 of file LastRunTrackingAnalysis.h.

Member Typedef Documentation

CompatibilityCheckFn

using llvm::LastRunTrackingInfo::CompatibilityCheckFn = std::function<bool(OptionPtr)>

Definition at line 52 of file LastRunTrackingAnalysis.h.

OptionPtr

using llvm::LastRunTrackingInfo::OptionPtr = const void *

Definition at line 50 of file LastRunTrackingAnalysis.h.

PassID

using llvm::LastRunTrackingInfo::PassID = const void *

Definition at line 49 of file LastRunTrackingAnalysis.h.

Member Function Documentation

shouldSkip() [1/2]

bool llvm::LastRunTrackingInfo::shouldSkip ( PassID ID ) const

inline

Definition at line 64 of file LastRunTrackingAnalysis.h.

shouldSkip() [2/2]

template<typename OptionT>

bool llvm::LastRunTrackingInfo::shouldSkip ( PassID ID, const OptionT & Opt ) const

inline

Check if we should skip a pass.

Parameters

ID	The unique ID of the pass.
Opt	The parameters of the pass. If the pass has no parameters, use shouldSkip(PassID ID) instead.

Returns

True if we should skip the pass.

See also

shouldSkip(PassID ID)

Definition at line 61 of file LastRunTrackingAnalysis.h.

update() [1/2]

void llvm::LastRunTrackingInfo::update ( PassID ID, bool Changed )

inline

Definition at line 79 of file LastRunTrackingAnalysis.h.

References Changed.

update() [2/2]

template<typename OptionT>

void llvm::LastRunTrackingInfo::update ( PassID ID, bool Changed, const OptionT & Opt )

inline

Update the tracking info.

Parameters

ID	The unique ID of the pass.
Changed	Whether the pass makes changes.
Opt	The parameters of the pass. It must have the same type as the parameters of the last run. If the pass has no parameters, use update(PassID ID, bool Changed) instead.

See also

update(PassID ID, bool Changed)

Definition at line 74 of file LastRunTrackingAnalysis.h.

References Changed, and Ptr.

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

• include/llvm/Analysis/LastRunTrackingAnalysis.h
• lib/Analysis/LastRunTrackingAnalysis.cpp