ImmutableAnalysis abstraction for fetching the Eviction Advisor. More...
#include "CodeGen/RegAllocEvictionAdvisor.h"
Inheritance diagram for llvm::RegAllocEvictionAdvisorAnalysis:
Collaboration diagram for llvm::RegAllocEvictionAdvisorAnalysis:
Public Types | |
| enum class | AdvisorMode : int { Default , Release , Development } |
Public Member Functions | |
| RegAllocEvictionAdvisorAnalysis (AdvisorMode Mode) | |
| virtual std::unique_ptr< RegAllocEvictionAdvisor > | getAdvisor (const MachineFunction &MF, const RAGreedy &RA)=0 |
| Get an advisor for the given context (i.e. machine function, etc) | |
| AdvisorMode | getAdvisorMode () const |
| virtual void | logRewardIfNeeded (const MachineFunction &MF, llvm::function_ref< float()> GetReward) |
 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. | |
| virtual bool | runOnModule (Module &M)=0 |
| runOnModule - Virtual method overriden by subclasses to process the module being operated on. | |
| 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. | |
| 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 bool | doFinalization (Module &) |
| doFinalization - Virtual method overriden by subclasses to do any necessary clean up after all passes have run. | |
| virtual void | print (raw_ostream &OS, const Module *M) const |
| print - Print out the internal state of the pass. | |
| void | dump () const |
| virtual Pass * | createPrinterPass (raw_ostream &OS, const std::string &Banner) const =0 |
| createPrinterPass - Get a Pass appropriate to print the IR this pass operates on (Module, Function or MachineFunction). | |
| virtual void | assignPassManager (PMStack &, PassManagerType) |
| Each pass is responsible for assigning a pass manager to itself. | |
| virtual void | preparePassManager (PMStack &) |
| Check if available pass managers are suitable for this pass or not. | |
| virtual PassManagerType | getPotentialPassManagerType () const |
| Return what kind of Pass Manager can manage this pass. | |
| 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 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. | |
| virtual void * | getAdjustedAnalysisPointer (AnalysisID ID) |
| getAdjustedAnalysisPointer - This method is used when a pass implements an analysis interface through multiple inheritance. | |
| 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. | |
| 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. | |
| bool | mustPreserveAnalysisID (char &AID) const |
| mustPreserveAnalysisID - This method serves the same function as getAnalysisIfAvailable, but works if you just have an AnalysisID. | |
| 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. | |
| template<typename AnalysisType > | |
| AnalysisType & | getAnalysis (Function &F, bool *Changed=nullptr) |
| getAnalysis<AnalysisType>() - This function is used by subclasses to get to the analysis information that they claim to use by overriding the getAnalysisUsage function. | |
| template<typename AnalysisType > | |
| AnalysisType & | getAnalysisID (AnalysisID PI) const |
| template<typename AnalysisType > | |
| AnalysisType & | getAnalysisID (AnalysisID PI, Function &F, bool *Changed=nullptr) |
Static Public Attributes | |
| static char | ID = 0 |
Protected Member Functions | |
| void | getAnalysisUsage (AnalysisUsage &AU) const override |
| getAnalysisUsage - This function should be overriden by passes that need analysis information to do their job. | |
| Protected Member Functions inherited from llvm::ModulePass | |
| bool | skipModule (Module &M) const |
| Optional passes call this function to check whether the pass should be skipped. | |
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) |
Detailed Description
ImmutableAnalysis abstraction for fetching the Eviction Advisor.
We model it as an analysis to decouple the user from the implementation insofar as dependencies on other analyses goes. The motivation for it being an immutable pass is twofold:
- in the ML implementation case, the evaluator is stateless but (especially in the development mode) expensive to set up. With an immutable pass, we set it up once.
- in the 'development' mode ML case, we want to capture the training log during allocation (this is a log of features encountered and decisions made), and then measure a score, potentially a few steps after allocation completes. So we need the properties of an immutable pass to keep the logger state around until we can make that measurement.
Because we need to offer additional services in 'development' mode, the implementations of this analysis need to implement RTTI support.
Definition at line 167 of file RegAllocEvictionAdvisor.h.
Member Enumeration Documentation
◆ AdvisorMode
|
strong |
| Enumerator | |
|---|---|
| Default | |
| Release | |
| Development | |
Definition at line 169 of file RegAllocEvictionAdvisor.h.
Constructor & Destructor Documentation
◆ RegAllocEvictionAdvisorAnalysis()
|
inline |
Definition at line 171 of file RegAllocEvictionAdvisor.h.
Member Function Documentation
◆ getAdvisor()
|
pure virtual |
Get an advisor for the given context (i.e. machine function, etc)
Referenced by INITIALIZE_PASS().
◆ getAdvisorMode()
|
inline |
Definition at line 178 of file RegAllocEvictionAdvisor.h.
◆ getAnalysisUsage()
|
inlineoverrideprotectedvirtual |
getAnalysisUsage - This function should be overriden by passes that need analysis information to do their job.
If a pass specifies that it uses a particular analysis result to this function, it can then use the getAnalysis<AnalysisType>() function, below.
Reimplemented from llvm::Pass.
Definition at line 185 of file RegAllocEvictionAdvisor.h.
References llvm::AnalysisUsage::setPreservesAll().
Referenced by INITIALIZE_PASS().
◆ logRewardIfNeeded()
|
inlinevirtual |
Definition at line 179 of file RegAllocEvictionAdvisor.h.
Referenced by INITIALIZE_PASS().
Member Data Documentation
◆ ID
|
static |
Definition at line 173 of file RegAllocEvictionAdvisor.h.
The documentation for this class was generated from the following files:
- lib/CodeGen/RegAllocEvictionAdvisor.h
- lib/CodeGen/RegAllocEvictionAdvisor.cpp
