llvm::orc::ReOptimizeLayer Class Reference

#include "llvm/ExecutionEngine/Orc/ReOptimizeLayer.h"

Inheritance diagram for llvm::orc::ReOptimizeLayer:

Public Types
using	ReOptMaterializationUnitID = uint64_t
using	AddProfilerFunc
	AddProfilerFunc will be called when ReOptimizeLayer emits the first version of a materialization unit in order to inject profiling code and reoptimization request code.
using	ReOptimizeFunc
	ReOptimizeFunc will be called when ReOptimizeLayer reoptimization of a materialization unit was requested in order to reoptimize the IR module based on profile data.

Public Member Functions
	ReOptimizeLayer (ExecutionSession &ES, DataLayout &DL, IRLayer &BaseLayer, RedirectableSymbolManager &RM)
void	setReoptimizeFunc (ReOptimizeFunc ReOptFunc)
void	setAddProfilerFunc (AddProfilerFunc ProfilerFunc)
Error	reigsterRuntimeFunctions (JITDylib &PlatformJD)
	Registers reoptimize runtime dispatch handlers to given PlatformJD.
void	emit (std::unique_ptr< MaterializationResponsibility > R, ThreadSafeModule TSM) override
	Emits the given module.
Error	handleRemoveResources (JITDylib &JD, ResourceKey K) override
	This function will be called outside the session lock.
void	handleTransferResources (JITDylib &JD, ResourceKey DstK, ResourceKey SrcK) override
	This function will be called inside the session lock.
Public Member Functions inherited from llvm::orc::IRLayer
	IRLayer (ExecutionSession &ES, const IRSymbolMapper::ManglingOptions *&MO)
virtual	~IRLayer ()
ExecutionSession &	getExecutionSession ()
	Returns the ExecutionSession for this layer.
const IRSymbolMapper::ManglingOptions *&	getManglingOptions () const
	Get the mangling options for this layer.
void	setCloneToNewContextOnEmit (bool CloneToNewContextOnEmit)
	Sets the CloneToNewContextOnEmit flag (false by default).
bool	getCloneToNewContextOnEmit () const
	Returns the current value of the CloneToNewContextOnEmit flag.
virtual Error	add (ResourceTrackerSP RT, ThreadSafeModule TSM)
	Add a MaterializatinoUnit representing the given IR to the JITDylib targeted by the given tracker.
Error	add (JITDylib &JD, ThreadSafeModule TSM)
	Adds a MaterializationUnit representing the given IR to the given JITDylib.
Public Member Functions inherited from llvm::orc::ResourceManager
virtual	~ResourceManager ()

Static Public Member Functions
static Error	reoptimizeIfCallFrequent (ReOptimizeLayer &Parent, ReOptMaterializationUnitID MUID, unsigned CurVersion, ThreadSafeModule &TSM)
	Basic AddProfilerFunc that reoptimizes the function when the call count exceeds CallCountThreshold.
static Error	identity (ReOptimizeLayer &Parent, ReOptMaterializationUnitID MUID, unsigned CurVersion, ResourceTrackerSP OldRT, ThreadSafeModule &TSM)
static void	createReoptimizeCall (Module &M, Instruction &IP, GlobalVariable *ArgBuffer)

Static Public Attributes
static const uint64_t	CallCountThreshold = 10

Detailed Description

Definition at line 28 of file ReOptimizeLayer.h.

Member Typedef Documentation

AddProfilerFunc

using llvm::orc::ReOptimizeLayer::AddProfilerFunc

Initial value:

 unique_function<Error(
      ReOptimizeLayer &Parent, ReOptMaterializationUnitID MUID,
      unsigned CurVersion, ThreadSafeModule &TSM)>

AddProfilerFunc will be called when ReOptimizeLayer emits the first version of a materialization unit in order to inject profiling code and reoptimization request code.

Definition at line 35 of file ReOptimizeLayer.h.

ReOptimizeFunc

using llvm::orc::ReOptimizeLayer::ReOptimizeFunc

Initial value:

 unique_function<Error(
      ReOptimizeLayer &Parent, ReOptMaterializationUnitID MUID,
      unsigned CurVersion, ResourceTrackerSP OldRT, ThreadSafeModule &TSM)>

ReOptimizeFunc will be called when ReOptimizeLayer reoptimization of a materialization unit was requested in order to reoptimize the IR module based on profile data.

OldRT is the ResourceTracker that tracks the old function definitions. The OldRT must be kept alive until it can be guaranteed that every invocation of the old function definitions has been terminated.

Definition at line 45 of file ReOptimizeLayer.h.

ReOptMaterializationUnitID

using llvm::orc::ReOptimizeLayer::ReOptMaterializationUnitID = uint64_t

Definition at line 30 of file ReOptimizeLayer.h.

Constructor & Destructor Documentation

ReOptimizeLayer()

llvm::orc::ReOptimizeLayer::ReOptimizeLayer ( ExecutionSession & ES, DataLayout & DL, IRLayer & BaseLayer, RedirectableSymbolManager & RM )

inline

Definition at line 49 of file ReOptimizeLayer.h.

References DL, llvm::orc::IRLayer::getManglingOptions(), identity(), llvm::orc::IRLayer::IRLayer(), and reoptimizeIfCallFrequent().

Referenced by identity(), and reoptimizeIfCallFrequent().

Member Function Documentation

createReoptimizeCall()

void ReOptimizeLayer::createReoptimizeCall ( Module & M, Instruction & IP, GlobalVariable * ArgBuffer )

static

Definition at line 209 of file ReOptimizeLayer.cpp.

References llvm::Function::Create(), llvm::IRBuilderBase::CreateCall(), llvm::GlobalValue::ExternalLinkage, llvm::FunctionType::get(), llvm::IntegerType::get(), llvm::PointerType::get(), llvm::Function::getFunction(), and llvm::Type::getVoidTy().

Referenced by reoptimizeIfCallFrequent().

emit()

void ReOptimizeLayer::emit ( std::unique_ptr< MaterializationResponsibility > R, ThreadSafeModule TSM )

overridevirtual

Emits the given module.

This should not be called by clients: it will be called by the JIT when a definition added via the add method is requested.

Implements llvm::orc::IRLayer.

Definition at line 38 of file ReOptimizeLayer.cpp.

References llvm::InnerAnalysisManagerProxy< AnalysisManagerT, IRUnitT, ExtraArgTs... >::Key.

handleRemoveResources()

Error ReOptimizeLayer::handleRemoveResources ( JITDylib & JD, ResourceKey K )

overridevirtual

This function will be called outside the session lock.

ResourceManagers should perform book-keeping under the session lock, and any expensive cleanup outside the session lock.

Implements llvm::orc::ResourceManager.

Definition at line 265 of file ReOptimizeLayer.cpp.

References llvm::Error::success().

handleTransferResources()

void ReOptimizeLayer::handleTransferResources ( JITDylib & JD, ResourceKey DstK, ResourceKey SrcK )

overridevirtual

This function will be called inside the session lock.

ResourceManagers DO NOT need to re-lock the session.

Implements llvm::orc::ResourceManager.

Definition at line 274 of file ReOptimizeLayer.cpp.

identity()

Error llvm::orc::ReOptimizeLayer::identity ( ReOptimizeLayer & Parent, ReOptMaterializationUnitID MUID, unsigned CurVersion, ResourceTrackerSP OldRT, ThreadSafeModule & TSM )

inlinestatic

Definition at line 82 of file ReOptimizeLayer.h.

References ReOptimizeLayer(), and llvm::Error::success().

Referenced by ReOptimizeLayer().

reigsterRuntimeFunctions()

Error ReOptimizeLayer::reigsterRuntimeFunctions

(

JITDylib &

PlatformJD

)

Registers reoptimize runtime dispatch handlers to given PlatformJD.

The reoptimization request will not be handled if dispatch handler is not registered by using this function.

Definition at line 29 of file ReOptimizeLayer.cpp.

reoptimizeIfCallFrequent()

Error ReOptimizeLayer::reoptimizeIfCallFrequent ( ReOptimizeLayer & Parent, ReOptMaterializationUnitID MUID, unsigned CurVersion, ThreadSafeModule & TSM )

static

Basic AddProfilerFunc that reoptimizes the function when the call count exceeds CallCountThreshold.

Definition at line 82 of file ReOptimizeLayer.cpp.

References CallCountThreshold, llvm::IRBuilderBase::CreateAdd(), llvm::IRBuilderBase::CreateICmpEQ(), llvm::IRBuilderBase::CreateLoad(), createReoptimizeCall(), llvm::IRBuilderBase::CreateStore(), F, llvm::Type::getInt64Ty(), llvm::Constant::getNullValue(), llvm::GlobalValue::InternalLinkage, ReOptimizeLayer(), llvm::SplitBlockAndInsertIfThen(), llvm::Error::success(), and llvm::orc::ThreadSafeModule::withModuleDo().

Referenced by ReOptimizeLayer().

setAddProfilerFunc()

void llvm::orc::ReOptimizeLayer::setAddProfilerFunc ( AddProfilerFunc ProfilerFunc )

inline

Definition at line 59 of file ReOptimizeLayer.h.

setReoptimizeFunc()

void llvm::orc::ReOptimizeLayer::setReoptimizeFunc ( ReOptimizeFunc ReOptFunc )

inline

Definition at line 55 of file ReOptimizeLayer.h.

Member Data Documentation

CallCountThreshold

const uint64_t llvm::orc::ReOptimizeLayer::CallCountThreshold = 10

static

Definition at line 73 of file ReOptimizeLayer.h.

Referenced by reoptimizeIfCallFrequent().

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

• include/llvm/ExecutionEngine/Orc/ReOptimizeLayer.h
• lib/ExecutionEngine/Orc/ReOptimizeLayer.cpp