This is an important class for using LLVM in a threaded context. More...

#include "llvm/IR/LLVMContext.h"

Inheritance diagram for llvm::LLVMContext:

Collaboration diagram for llvm::LLVMContext:

[legend]

Public Types
enum	: unsigned

enum	: unsigned { OB_deopt = 0, OB_funclet = 1, OB_gc_transition = 2, OB_cfguardtarget = 3, OB_preallocated = 4, OB_gc_live = 5, OB_clang_arc_attachedcall = 6 }
	Known operand bundle tag IDs, which always have the same value. More...

using	YieldCallbackTy = void()(LLVMContext Context, void *OpaqueHandle)
	Defines the type of a yield callback. More...

Public Member Functions
	LLVMContext ()

	LLVMContext (LLVMContext &)=delete

LLVMContext &	operator= (const LLVMContext &)=delete

	~LLVMContext ()

unsigned	getMDKindID (StringRef Name) const
	getMDKindID - Return a unique non-zero ID for the specified metadata kind. More...

void	getMDKindNames (SmallVectorImpl< StringRef > &Result) const
	getMDKindNames - Populate client supplied SmallVector with the name for custom metadata IDs registered in this LLVMContext. More...

void	getOperandBundleTags (SmallVectorImpl< StringRef > &Result) const
	getOperandBundleTags - Populate client supplied SmallVector with the bundle tags registered in this LLVMContext. More...

StringMapEntry< uint32_t > *	getOrInsertBundleTag (StringRef TagName) const
	getOrInsertBundleTag - Returns the Tag to use for an operand bundle of name TagName. More...

uint32_t	getOperandBundleTagID (StringRef Tag) const
	getOperandBundleTagID - Maps a bundle tag to an integer ID. More...

SyncScope::ID	getOrInsertSyncScopeID (StringRef SSN)
	getOrInsertSyncScopeID - Maps synchronization scope name to synchronization scope ID. More...

void	getSyncScopeNames (SmallVectorImpl< StringRef > &SSNs) const
	getSyncScopeNames - Populates client supplied SmallVector with synchronization scope names registered with LLVMContext. More...

void	setGC (const Function &Fn, std::string GCName)
	Define the GC for a function. More...

const std::string &	getGC (const Function &Fn)
	Return the GC for a function. More...

void	deleteGC (const Function &Fn)
	Remove the GC for a function. More...

bool	shouldDiscardValueNames () const
	Return true if the Context runtime configuration is set to discard all value names. More...

void	setDiscardValueNames (bool Discard)
	Set the Context runtime configuration to discard all value name (but GlobalValue). More...

bool	isODRUniquingDebugTypes () const
	Whether there is a string map for uniquing debug info identifiers across the context. More...

void	enableDebugTypeODRUniquing ()

void	disableDebugTypeODRUniquing ()

void	setDiagnosticHandlerCallBack (DiagnosticHandler::DiagnosticHandlerTy DiagHandler, void *DiagContext=nullptr, bool RespectFilters=false)
	setDiagnosticHandlerCallBack - This method sets a handler call back that is invoked when the backend needs to report anything to the user. More...

void	setDiagnosticHandler (std::unique_ptr< DiagnosticHandler > &&DH, bool RespectFilters=false)
	setDiagnosticHandler - This method sets unique_ptr to object of DiagnosticHandler to provide custom diagnostic handling. More...

DiagnosticHandler::DiagnosticHandlerTy	getDiagnosticHandlerCallBack () const
	getDiagnosticHandlerCallBack - Return the diagnostic handler call back set by setDiagnosticHandlerCallBack. More...

void *	getDiagnosticContext () const
	getDiagnosticContext - Return the diagnostic context set by setDiagnosticContext. More...

const DiagnosticHandler *	getDiagHandlerPtr () const
	getDiagHandlerPtr - Returns const raw pointer of DiagnosticHandler set by setDiagnosticHandler. More...

std::unique_ptr< DiagnosticHandler >	getDiagnosticHandler ()
	getDiagnosticHandler - transfers ownership of DiagnosticHandler unique_ptr to caller. More...

bool	getDiagnosticsHotnessRequested () const
	Return if a code hotness metric should be included in optimization diagnostics. More...

void	setDiagnosticsHotnessRequested (bool Requested)
	Set if a code hotness metric should be included in optimization diagnostics. More...

uint64_t	getDiagnosticsHotnessThreshold () const
	Return the minimum hotness value a diagnostic would need in order to be included in optimization diagnostics. More...

void	setDiagnosticsHotnessThreshold (Optional< uint64_t > Threshold)
	Set the minimum hotness value a diagnostic needs in order to be included in optimization diagnostics. More...

bool	isDiagnosticsHotnessThresholdSetFromPSI () const
	Return if hotness threshold is requested from PSI. More...

remarks::RemarkStreamer *	getMainRemarkStreamer ()
	The "main remark streamer" used by all the specialized remark streamers. More...

const remarks::RemarkStreamer *	getMainRemarkStreamer () const

void	setMainRemarkStreamer (std::unique_ptr< remarks::RemarkStreamer > MainRemarkStreamer)

LLVMRemarkStreamer *	getLLVMRemarkStreamer ()
	The "LLVM remark streamer" used by LLVM to serialize remark diagnostics comming from IR and MIR passes. More...

const LLVMRemarkStreamer *	getLLVMRemarkStreamer () const

void	setLLVMRemarkStreamer (std::unique_ptr< LLVMRemarkStreamer > RemarkStreamer)

void	diagnose (const DiagnosticInfo &DI)
	Report a message to the currently installed diagnostic handler. More...

void	setYieldCallback (YieldCallbackTy Callback, void *OpaqueHandle)
	Registers a yield callback with the given context. More...

void	yield ()
	Calls the yield callback (if applicable). More...

void	emitError (uint64_t LocCookie, const Twine &ErrorStr)
	emitError - Emit an error message to the currently installed error handler with optional location information. More...

void	emitError (const Instruction *I, const Twine &ErrorStr)

void	emitError (const Twine &ErrorStr)

OptPassGate &	getOptPassGate () const
	Access the object which can disable optional passes and individual optimizations at compile time. More...

void	setOptPassGate (OptPassGate &)
	Set the object which can disable optional passes and individual optimizations at compile time. More...

void	enableOpaquePointers () const
	Enable opaque pointers. More...

bool	supportsTypedPointers () const
	Whether typed pointers are supported. If false, all pointers are opaque. More...

Static Public Member Functions
static const char *	getDiagnosticMessagePrefix (DiagnosticSeverity Severity)
	Get the prefix that should be printed in front of a diagnostic of the given `Severity`. More...

Public Attributes
LLVMContextImpl *const	pImpl

Friends
class	Module

Detailed Description

This is an important class for using LLVM in a threaded context.

It (opaquely) owns and manages the core "global" data of LLVM's core infrastructure, including the type and constant uniquing tables. LLVMContext itself provides no locking guarantees, so you should be careful to have one context per thread.

Definition at line 67 of file LLVMContext.h.

Member Typedef Documentation

◆ YieldCallbackTy

using llvm::LLVMContext::YieldCallbackTy = void (*)(LLVMContext *Context, void *OpaqueHandle)

Defines the type of a yield callback.

See also: LLVMContext::setYieldCallback.

Definition at line 157 of file LLVMContext.h.

Member Enumeration Documentation

◆ anonymous enum

anonymous enum : unsigned

Definition at line 77 of file LLVMContext.h.

◆ anonymous enum

anonymous enum : unsigned

Known operand bundle tag IDs, which always have the same value.

All operand bundle tags that LLVM has special knowledge of are listed here. Additionally, this scheme allows LLVM to efficiently check for specific operand bundle tags without comparing strings. Keep this in sync with LLVMContext::LLVMContext().

Enumerator
OB_deopt
OB_funclet
OB_gc_transition
OB_cfguardtarget
OB_preallocated
OB_gc_live
OB_clang_arc_attachedcall

Definition at line 88 of file LLVMContext.h.

Constructor & Destructor Documentation

◆ LLVMContext() [1/2]

LLVMContext::LLVMContext ( )

Definition at line 36 of file LLVMContext.cpp.

References assert(), getMDKindID(), llvm::LLVMContextImpl::getOrInsertBundleTag(), llvm::LLVMContextImpl::getOrInsertSyncScopeID(), OB_cfguardtarget, OB_clang_arc_attachedcall, OB_deopt, OB_funclet, OB_gc_live, OB_gc_transition, OB_preallocated, pImpl, llvm::SyncScope::SingleThread, and llvm::SyncScope::System.

◆ LLVMContext() [2/2]

llvm::LLVMContext::LLVMContext ( LLVMContext & )

delete

◆ ~LLVMContext()

LLVMContext::~LLVMContext ( )

Definition at line 100 of file LLVMContext.cpp.

References pImpl.

Member Function Documentation

◆ deleteGC()

void LLVMContext::deleteGC ( const Function & Fn )

Remove the GC for a function.

Definition at line 312 of file LLVMContext.cpp.

References llvm::LLVMContextImpl::GCNames, and pImpl.

Referenced by llvm::Function::clearGC().

◆ diagnose()

void LLVMContext::diagnose ( const DiagnosticInfo & DI )

Report a message to the currently installed diagnostic handler.

This function returns, in particular in the case of error reporting (DI.Severity == DS_Error), so the caller should leave the compilation process in a self-consistent state, even though the generated code need not be correct.

The diagnostic message will be implicitly prefixed with a severity keyword according to DI.getSeverity(), i.e., "error: " for DS_Error, "warning: " for DS_Warning, and "note: " for DS_Note.

Definition at line 228 of file LLVMContext.cpp.

References llvm::LLVMContextImpl::DiagHandler, DP, llvm::DS_Error, llvm::errs(), exit(), getDiagnosticMessagePrefix(), getLLVMRemarkStreamer(), llvm::DiagnosticInfo::getSeverity(), isDiagnosticEnabled(), pImpl, llvm::DiagnosticInfo::print(), and llvm::LLVMContextImpl::RespectDiagnosticFilters.

Referenced by llvm::SIMachineFunctionInfo::allocateSGPRSpillToVGPR(), llvm::sampleprof::SampleProfileReaderItaniumRemapper::applyRemapping(), llvm::MachineModuleInfoWrapperPass::doInitialization(), llvm::OptimizationRemarkEmitter::emit(), llvm::MachineOptimizationRemarkEmitter::emit(), emitError(), emitNonHSAIntrinsicError(), llvm::RISCVFrameLowering::emitPrologue(), emitRemovedIntrinsicError(), emitSCSEpilogue(), emitSCSPrologue(), errorUnsupported(), fail(), llvm::RISCVInstrInfo::getVLENFactoredAmount(), llvm::AMDGPULegalizerInfo::legalizeDebugTrapIntrinsic(), llvm::AMDGPULegalizerInfo::legalizeGlobalValue(), llvm::RISCVTargetLowering::LowerCall(), llvm::AMDGPUTargetLowering::LowerDYNAMIC_STACKALLOC(), llvm::SITargetLowering::LowerFormalArguments(), llvm::AMDGPUTargetLowering::LowerGlobalAddress(), llvm::RISCVTargetLowering::LowerReturn(), llvm::AMDGPUTargetLowering::lowerUnhandledCall(), llvm::sampleprof::SampleProfileReader::reportError(), reportIllegalCopy(), llvm::SelectionDAGISel::runOnMachineFunction(), and selectExplicitSectionGlobal().

◆ disableDebugTypeODRUniquing()

void LLVMContext::disableDebugTypeODRUniquing ( )

Definition at line 329 of file LLVMContext.cpp.

References llvm::LLVMContextImpl::DITypeMap, and pImpl.

◆ emitError() [1/3]

void LLVMContext::emitError	(	const Instruction *	I,
		const Twine &	ErrorStr
	)

Definition at line 193 of file LLVMContext.cpp.

References assert(), diagnose(), and I.

◆ emitError() [2/3]

void LLVMContext::emitError ( const Twine & ErrorStr )

Definition at line 189 of file LLVMContext.cpp.

References diagnose().

◆ emitError() [3/3]

void LLVMContext::emitError	(	uint64_t	LocCookie,
		const Twine &	ErrorStr
	)

emitError - Emit an error message to the currently installed error handler with optional location information.

This function returns, so code should be prepared to drop the erroneous construct on the floor and "not crash". The generated code need not be correct. The error message will be implicitly prefixed with "error: " and should not end with a ".".

Definition at line 251 of file LLVMContext.cpp.

References diagnose().

Referenced by diagnosePossiblyInvalidConstraint(), llvm::MachineInstr::emitError(), EmitInlineAsmStr(), llvm::AMDGPU::getIntegerAttribute(), llvm::AMDGPU::getIntegerPairAttribute(), INITIALIZE_PASS(), llvm::RAGreedy::selectOrSplit(), and llvm::TargetLowering::verifyReturnAddressArgumentIsConstant().

◆ enableDebugTypeODRUniquing()

void LLVMContext::enableDebugTypeODRUniquing ( )

Definition at line 322 of file LLVMContext.cpp.

References llvm::LLVMContextImpl::DITypeMap, and pImpl.

Referenced by llvm::lto::LTOLLVMContext::LTOLLVMContext().

◆ enableOpaquePointers()

void LLVMContext::enableOpaquePointers ( ) const

Enable opaque pointers.

Can only be called before creating the first pointer type.

Definition at line 351 of file LLVMContext.cpp.

References llvm::LLVMContextImpl::ASPointerTypes, assert(), pImpl, llvm::LLVMContextImpl::PointerTypes, and llvm::LLVMContextImpl::setOpaquePointers().

◆ getDiagHandlerPtr()

const DiagnosticHandler * LLVMContext::getDiagHandlerPtr ( ) const

getDiagHandlerPtr - Returns const raw pointer of DiagnosticHandler set by setDiagnosticHandler.

Definition at line 343 of file LLVMContext.cpp.

References llvm::LLVMContextImpl::DiagHandler, and pImpl.

Referenced by llvm::OptimizationRemarkEmitter::allowExtraAnalysis(), llvm::MachineOptimizationRemarkEmitter::allowExtraAnalysis(), llvm::MachineOptimizationRemarkEmitter::emit(), llvm::OptimizationRemarkEmitter::enabled(), getDefaultInlineAdvice(), llvm::MachineOptimizationRemark::isEnabled(), llvm::MachineOptimizationRemarkMissed::isEnabled(), llvm::MachineOptimizationRemarkAnalysis::isEnabled(), llvm::OptimizationRemark::isEnabled(), llvm::OptimizationRemarkMissed::isEnabled(), and llvm::OptimizationRemarkAnalysis::isEnabled().

◆ getDiagnosticContext()

void * LLVMContext::getDiagnosticContext ( ) const

getDiagnosticContext - Return the diagnostic context set by setDiagnosticContext.

Definition at line 174 of file LLVMContext.cpp.

References llvm::LLVMContextImpl::DiagHandler, and pImpl.

◆ getDiagnosticHandler()

std::unique_ptr< DiagnosticHandler > LLVMContext::getDiagnosticHandler ( )

getDiagnosticHandler - transfers ownership of DiagnosticHandler unique_ptr to caller.

Definition at line 347 of file LLVMContext.cpp.

References llvm::LLVMContextImpl::DiagHandler, move, and pImpl.

◆ getDiagnosticHandlerCallBack()

DiagnosticHandler::DiagnosticHandlerTy LLVMContext::getDiagnosticHandlerCallBack ( ) const

getDiagnosticHandlerCallBack - Return the diagnostic handler call back set by setDiagnosticHandlerCallBack.

Definition at line 170 of file LLVMContext.cpp.

References llvm::LLVMContextImpl::DiagHandler, and pImpl.

◆ getDiagnosticMessagePrefix()

const char * LLVMContext::getDiagnosticMessagePrefix ( DiagnosticSeverity Severity )

static

Get the prefix that should be printed in front of a diagnostic of the given Severity.

Definition at line 214 of file LLVMContext.cpp.

References llvm::DS_Error, llvm::DS_Note, llvm::DS_Remark, llvm::DS_Warning, and llvm_unreachable.

Referenced by diagnose().

◆ getDiagnosticsHotnessRequested()

bool LLVMContext::getDiagnosticsHotnessRequested ( ) const

Return if a code hotness metric should be included in optimization diagnostics.

Definition at line 131 of file LLVMContext.cpp.

References llvm::LLVMContextImpl::DiagnosticsHotnessRequested, and pImpl.

Referenced by llvm::MachineOptimizationRemarkEmitterPass::runOnMachineFunction().

◆ getDiagnosticsHotnessThreshold()

uint64_t LLVMContext::getDiagnosticsHotnessThreshold ( ) const

Return the minimum hotness value a diagnostic would need in order to be included in optimization diagnostics.

Three possible return values: 0 - threshold is disabled. Everything will be printed out. positive int - threshold is set. UINT64_MAX - threshold is not yet set, and needs to be synced from profile summary. Note that in case of missing profile summary, threshold will be kept at "MAX", effectively suppresses all remarks output.

Definition at line 139 of file LLVMContext.cpp.

References llvm::LLVMContextImpl::DiagnosticsHotnessThreshold, llvm::Optional< T >::getValueOr(), pImpl, and UINT64_MAX.

Referenced by llvm::OptimizationRemarkEmitter::emit(), and llvm::MachineOptimizationRemarkEmitter::emit().

◆ getGC()

const std::string & LLVMContext::getGC ( const Function & Fn )

Return the GC for a function.

Definition at line 308 of file LLVMContext.cpp.

References llvm::LLVMContextImpl::GCNames, and pImpl.

Referenced by llvm::Function::getGC().

◆ getLLVMRemarkStreamer() [1/2]

const LLVMRemarkStreamer * LLVMContext::getLLVMRemarkStreamer ( )

The "LLVM remark streamer" used by LLVM to serialize remark diagnostics comming from IR and MIR passes.

If it does not exist, diagnostics are not saved in a file but only emitted via the diagnostic handler.

Definition at line 158 of file LLVMContext.cpp.

References llvm::LLVMContextImpl::LLVMRS, and pImpl.

Referenced by llvm::OptimizationRemarkEmitter::allowExtraAnalysis(), llvm::MachineOptimizationRemarkEmitter::allowExtraAnalysis(), diagnose(), llvm::MachineOptimizationRemarkEmitter::emit(), and llvm::OptimizationRemarkEmitter::enabled().

◆ getLLVMRemarkStreamer() [2/2]

const LLVMRemarkStreamer* llvm::LLVMContext::getLLVMRemarkStreamer ( ) const

◆ getMainRemarkStreamer() [1/2]

const remarks::RemarkStreamer * LLVMContext::getMainRemarkStreamer ( )

The "main remark streamer" used by all the specialized remark streamers.

This streamer keeps generic remark metadata in memory throughout the life of the LLVMContext. This metadata may be emitted in a section in object files depending on the format requirements.

All specialized remark streamers should convert remarks to llvm::remarks::Remark and emit them through this streamer.

Definition at line 147 of file LLVMContext.cpp.

References llvm::LLVMContextImpl::MainRemarkStreamer, and pImpl.

◆ getMainRemarkStreamer() [2/2]

const remarks::RemarkStreamer* llvm::LLVMContext::getMainRemarkStreamer ( ) const

◆ getMDKindID()

unsigned LLVMContext::getMDKindID ( StringRef Name ) const

getMDKindID - Return a unique non-zero ID for the specified metadata kind.

Return a unique non-zero ID for the specified metadata kind.

This ID is uniqued across modules in the current LLVMContext.

Definition at line 260 of file LLVMContext.cpp.

References llvm::LLVMContextImpl::CustomMDKindNames, llvm::StringMap< ValueTy, AllocatorTy >::insert(), pImpl, and llvm::StringMapImpl::size().

Referenced by llvm::Module::getMDKindID(), insertUniqueBackedgeBlock(), and LLVMContext().

◆ getMDKindNames()

void LLVMContext::getMDKindNames ( SmallVectorImpl< StringRef > & Result ) const

getMDKindNames - Populate client supplied SmallVector with the name for custom metadata IDs registered in this LLVMContext.

getHandlerNames - Populate client-supplied smallvector using custom metadata name and ID.

Definition at line 270 of file LLVMContext.cpp.

References llvm::StringMap< ValueTy, AllocatorTy >::begin(), llvm::LLVMContextImpl::CustomMDKindNames, E, llvm::StringMap< ValueTy, AllocatorTy >::end(), I, pImpl, llvm::SmallVectorImpl< T >::resize(), and llvm::StringMapImpl::size().

Referenced by llvm::Module::getMDKindNames().

◆ getOperandBundleTagID()

uint32_t LLVMContext::getOperandBundleTagID ( StringRef Tag ) const

getOperandBundleTagID - Maps a bundle tag to an integer ID.

Every bundle tag registered with an LLVMContext has an unique ID.

Definition at line 286 of file LLVMContext.cpp.

References llvm::LLVMContextImpl::getOperandBundleTagID(), and pImpl.

◆ getOperandBundleTags()

void LLVMContext::getOperandBundleTags ( SmallVectorImpl< StringRef > & Result ) const

getOperandBundleTags - Populate client supplied SmallVector with the bundle tags registered in this LLVMContext.

The bundle tags are ordered by increasing bundle IDs.

See also: LLVMContext::getOperandBundleTagID

Definition at line 277 of file LLVMContext.cpp.

References llvm::LLVMContextImpl::getOperandBundleTags(), and pImpl.

Referenced by llvm::Module::getOperandBundleTags().

◆ getOptPassGate()

OptPassGate & LLVMContext::getOptPassGate ( ) const

Access the object which can disable optional passes and individual optimizations at compile time.

Definition at line 335 of file LLVMContext.cpp.

References llvm::LLVMContextImpl::getOptPassGate(), and pImpl.

◆ getOrInsertBundleTag()

StringMapEntry< uint32_t > * LLVMContext::getOrInsertBundleTag ( StringRef TagName ) const

getOrInsertBundleTag - Returns the Tag to use for an operand bundle of name TagName.

Definition at line 282 of file LLVMContext.cpp.

References llvm::LLVMContextImpl::getOrInsertBundleTag(), and pImpl.

◆ getOrInsertSyncScopeID()

SyncScope::ID LLVMContext::getOrInsertSyncScopeID ( StringRef SSN )

getOrInsertSyncScopeID - Maps synchronization scope name to synchronization scope ID.

Every synchronization scope registered with LLVMContext has unique ID except pre-defined ones.

Definition at line 290 of file LLVMContext.cpp.

References llvm::LLVMContextImpl::getOrInsertSyncScopeID(), and pImpl.

Referenced by llvm::AMDGPUMachineModuleInfo::AMDGPUMachineModuleInfo(), and llvm::SITargetLowering::shouldExpandAtomicRMWInIR().

◆ getSyncScopeNames()

void LLVMContext::getSyncScopeNames ( SmallVectorImpl< StringRef > & SSNs ) const

getSyncScopeNames - Populates client supplied SmallVector with synchronization scope names registered with LLVMContext.

Synchronization scope names are ordered by increasing synchronization scope IDs.

Definition at line 294 of file LLVMContext.cpp.

References llvm::LLVMContextImpl::getSyncScopeNames(), and pImpl.

Referenced by llvm::SITargetLowering::shouldExpandAtomicRMWInIR().

◆ isDiagnosticsHotnessThresholdSetFromPSI()

bool LLVMContext::isDiagnosticsHotnessThresholdSetFromPSI ( ) const

Return if hotness threshold is requested from PSI.

Definition at line 143 of file LLVMContext.cpp.

References llvm::LLVMContextImpl::DiagnosticsHotnessThreshold, llvm::Optional< T >::hasValue(), and pImpl.

◆ isODRUniquingDebugTypes()

bool LLVMContext::isODRUniquingDebugTypes ( ) const

Whether there is a string map for uniquing debug info identifiers across the context.

Off by default.

Definition at line 320 of file LLVMContext.cpp.

References llvm::LLVMContextImpl::DITypeMap, and pImpl.

Referenced by llvm::lto::thinBackend().

◆ operator=()

LLVMContext& llvm::LLVMContext::operator= ( const LLVMContext & )

delete

◆ setDiagnosticHandler()

void LLVMContext::setDiagnosticHandler	(	std::unique_ptr< DiagnosticHandler > &&	DH,
		bool	RespectFilters = `false`
	)

setDiagnosticHandler - This method sets unique_ptr to object of DiagnosticHandler to provide custom diagnostic handling.

The first argument is unique_ptr of object of type DiagnosticHandler or a derived of that. The second argument should be set to true if the handler only expects enabled diagnostics.

Ownership of this pointer is moved to LLVMContextImpl.

Definition at line 122 of file LLVMContext.cpp.

References llvm::LLVMContextImpl::DiagHandler, move, pImpl, and llvm::LLVMContextImpl::RespectDiagnosticFilters.

Referenced by llvm::lto::LTOLLVMContext::LTOLLVMContext(), and llvm::LTOCodeGenerator::setDiagnosticHandler().

◆ setDiagnosticHandlerCallBack()

void LLVMContext::setDiagnosticHandlerCallBack	(	DiagnosticHandler::DiagnosticHandlerTy	DiagHandler,
		void *	DiagContext = `nullptr`,
		bool	RespectFilters = `false`
	)

setDiagnosticHandlerCallBack - This method sets a handler call back that is invoked when the backend needs to report anything to the user.

The first argument is a function pointer and the second is a context pointer that gets passed into the DiagHandler. The third argument should be set to true if the handler only expects enabled diagnostics.

LLVMContext doesn't take ownership or interpret either of these pointers.

Definition at line 114 of file LLVMContext.cpp.

References llvm::LLVMContextImpl::DiagHandler, pImpl, and llvm::LLVMContextImpl::RespectDiagnosticFilters.

◆ setDiagnosticsHotnessRequested()

void LLVMContext::setDiagnosticsHotnessRequested ( bool Requested )

Set if a code hotness metric should be included in optimization diagnostics.

Definition at line 128 of file LLVMContext.cpp.

References llvm::LLVMContextImpl::DiagnosticsHotnessRequested, and pImpl.

◆ setDiagnosticsHotnessThreshold()

void LLVMContext::setDiagnosticsHotnessThreshold ( Optional< uint64_t > Threshold )

Set the minimum hotness value a diagnostic needs in order to be included in optimization diagnostics.

Definition at line 135 of file LLVMContext.cpp.

References llvm::LLVMContextImpl::DiagnosticsHotnessThreshold, pImpl, and Threshold.

◆ setDiscardValueNames()

void LLVMContext::setDiscardValueNames ( bool Discard )

Set the Context runtime configuration to discard all value name (but GlobalValue).

Clients can use this flag to save memory and runtime, especially in release mode.

Definition at line 331 of file LLVMContext.cpp.

References llvm::LLVMContextImpl::DiscardValueNames, and pImpl.

Referenced by llvm::lto::LTOLLVMContext::LTOLLVMContext().

◆ setGC()

void LLVMContext::setGC	(	const Function &	Fn,
		std::string	GCName
	)

Define the GC for a function.

Definition at line 298 of file LLVMContext.cpp.

References llvm::LLVMContextImpl::GCNames, move, and pImpl.

Referenced by llvm::Function::setGC().

◆ setLLVMRemarkStreamer()

void LLVMContext::setLLVMRemarkStreamer ( std::unique_ptr< LLVMRemarkStreamer > RemarkStreamer )

Definition at line 164 of file LLVMContext.cpp.

References llvm::LLVMContextImpl::LLVMRS, move, and pImpl.

◆ setMainRemarkStreamer()

void LLVMContext::setMainRemarkStreamer ( std::unique_ptr< remarks::RemarkStreamer > MainRemarkStreamer )

Definition at line 153 of file LLVMContext.cpp.

References llvm::LLVMContextImpl::MainRemarkStreamer, move, and pImpl.

◆ setOptPassGate()

void LLVMContext::setOptPassGate ( OptPassGate & OPG )

Set the object which can disable optional passes and individual optimizations at compile time.

The lifetime of the object must be guaranteed to extend as long as the LLVMContext is used by compilation.

Definition at line 339 of file LLVMContext.cpp.

References pImpl, and llvm::LLVMContextImpl::setOptPassGate().

◆ setYieldCallback()

void LLVMContext::setYieldCallback	(	YieldCallbackTy	Callback,
		void *	OpaqueHandle
	)

Registers a yield callback with the given context.

The yield callback function may be called by LLVM to transfer control back to the client that invoked the LLVM compilation. This can be used to yield control of the thread, or perform periodic work needed by the client. There is no guaranteed frequency at which callbacks must occur; in fact, the client is not guaranteed to ever receive this callback. It is at the sole discretion of LLVM to do so and only if it can guarantee that suspending the thread won't block any forward progress in other LLVM contexts in the same process.

At a suspend point, the state of the current LLVM context is intentionally undefined. No assumptions about it can or should be made. Only LLVM context API calls that explicitly state that they can be used during a yield callback are allowed to be used. Any other API calls into the context are not supported until the yield callback function returns control to LLVM. Other LLVM contexts are unaffected by this restriction.

Definition at line 178 of file LLVMContext.cpp.

References pImpl, llvm::LLVMContextImpl::YieldCallback, and llvm::LLVMContextImpl::YieldOpaqueHandle.

◆ shouldDiscardValueNames()

bool LLVMContext::shouldDiscardValueNames ( ) const

Return true if the Context runtime configuration is set to discard all value names.

When true, only GlobalValue names will be available in the IR.

Definition at line 316 of file LLVMContext.cpp.

References llvm::LLVMContextImpl::DiscardValueNames, and pImpl.

Referenced by llvm::LLParser::Run().

◆ supportsTypedPointers()

bool LLVMContext::supportsTypedPointers ( ) const

Whether typed pointers are supported. If false, all pointers are opaque.

Definition at line 357 of file LLVMContext.cpp.

References llvm::LLVMContextImpl::getOpaquePointers(), and pImpl.

◆ yield()

void LLVMContext::yield ( )

Calls the yield callback (if applicable).

This transfers control of the current thread back to the client, which may suspend the current thread. Only call this method when LLVM doesn't hold any global mutex or cannot block the execution in another LLVM context.

Definition at line 184 of file LLVMContext.cpp.

References pImpl, llvm::LLVMContextImpl::YieldCallback, and llvm::LLVMContextImpl::YieldOpaqueHandle.

Friends And Related Function Documentation

◆ Module

friend class Module

friend

Definition at line 316 of file LLVMContext.h.

Member Data Documentation

◆ pImpl

LLVMContextImpl* const llvm::LLVMContext::pImpl

Definition at line 69 of file LLVMContext.h.

Referenced by llvm::Value::addMetadata(), llvm::Value::clearMetadata(), deleteGC(), diagnose(), disableDebugTypeODRUniquing(), llvm::Module::dropTriviallyDeadConstantArrays(), llvm::Instruction::dropUnknownNonDebugMetadata(), enableDebugTypeODRUniquing(), enableOpaquePointers(), llvm::Value::eraseMetadata(), llvm::InlineAsm::get(), llvm::ArrayType::get(), llvm::ConstantArray::get(), llvm::ConstantVector::get(), llvm::FixedVectorType::get(), llvm::ScalableVectorType::get(), llvm::PointerType::get(), llvm::DSOLocalEquivalent::get(), llvm::NoCFIValue::get(), llvm::Value::getAllMetadata(), getDiagHandlerPtr(), getDiagnosticContext(), getDiagnosticHandler(), getDiagnosticHandlerCallBack(), getDiagnosticsHotnessRequested(), getDiagnosticsHotnessThreshold(), llvm::ConstantExpr::getExtractElement(), llvm::ConstantExpr::getExtractValue(), llvm::ConstantExpr::getFCmp(), getFoldedCast(), getGC(), llvm::ConstantExpr::getICmp(), llvm::ValueAsMetadata::getIfExists(), llvm::ConstantDataSequential::getImpl(), llvm::ConstantExpr::getInsertElement(), llvm::ConstantExpr::getInsertValue(), getLLVMRemarkStreamer(), getMainRemarkStreamer(), getMDKindID(), getMDKindNames(), llvm::Value::getMetadata(), getOperandBundleTagID(), getOperandBundleTags(), getOptPassGate(), getOrInsertBundleTag(), getOrInsertSyncScopeID(), llvm::GlobalValue::getPartition(), llvm::ConstantExpr::getShuffleVector(), getSyncScopeNames(), llvm::Value::getValueName(), llvm::ValueAsMetadata::handleDeletion(), isDiagnosticsHotnessThresholdSetFromPSI(), isODRUniquingDebugTypes(), LLVMContext(), llvm::CallBase::populateBundleOperandInfos(), llvm::ValueHandleBase::RemoveFromUseList(), setDiagnosticHandler(), setDiagnosticHandlerCallBack(), setDiagnosticsHotnessRequested(), setDiagnosticsHotnessThreshold(), setDiscardValueNames(), setGC(), setLLVMRemarkStreamer(), setMainRemarkStreamer(), llvm::StructType::setName(), setOptPassGate(), llvm::GlobalValue::setPartition(), llvm::GlobalObject::setSection(), llvm::Value::setValueName(), setYieldCallback(), shouldDiscardValueNames(), llvm::MDNode::storeDistinctInContext(), supportsTypedPointers(), llvm::ValueHandleBase::ValueIsDeleted(), llvm::ValueHandleBase::ValueIsRAUWd(), yield(), ~LLVMContext(), and llvm::MetadataAsValue::~MetadataAsValue().

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

include/llvm/IR/LLVMContext.h
lib/IR/LLVMContext.cpp

Public Types

Public Member Functions

Static Public Member Functions

Public Attributes

Friends

Detailed Description

Member Typedef Documentation

◆ YieldCallbackTy

Member Enumeration Documentation

◆ anonymous enum

◆ anonymous enum

Constructor & Destructor Documentation

◆ LLVMContext() [1/2]

◆ LLVMContext() [2/2]

◆ ~LLVMContext()

Member Function Documentation

◆ deleteGC()

◆ diagnose()

◆ disableDebugTypeODRUniquing()

◆ emitError() [1/3]

◆ emitError() [2/3]

◆ emitError() [3/3]

◆ enableDebugTypeODRUniquing()

◆ enableOpaquePointers()

◆ getDiagHandlerPtr()

◆ getDiagnosticContext()

◆ getDiagnosticHandler()

◆ getDiagnosticHandlerCallBack()

◆ getDiagnosticMessagePrefix()

◆ getDiagnosticsHotnessRequested()

◆ getDiagnosticsHotnessThreshold()

◆ getGC()

◆ getLLVMRemarkStreamer() [1/2]

◆ getLLVMRemarkStreamer() [2/2]

◆ getMainRemarkStreamer() [1/2]

◆ getMainRemarkStreamer() [2/2]

◆ getMDKindID()

◆ getMDKindNames()

◆ getOperandBundleTagID()

◆ getOperandBundleTags()

◆ getOptPassGate()

◆ getOrInsertBundleTag()

◆ getOrInsertSyncScopeID()

◆ getSyncScopeNames()

◆ isDiagnosticsHotnessThresholdSetFromPSI()

◆ isODRUniquingDebugTypes()

◆ operator=()

◆ setDiagnosticHandler()

◆ setDiagnosticHandlerCallBack()

◆ setDiagnosticsHotnessRequested()

◆ setDiagnosticsHotnessThreshold()

◆ setDiscardValueNames()

◆ setGC()

◆ setLLVMRemarkStreamer()

◆ setMainRemarkStreamer()

◆ setOptPassGate()

◆ setYieldCallback()

◆ shouldDiscardValueNames()

◆ supportsTypedPointers()

◆ yield()

Friends And Related Function Documentation

◆ Module

Member Data Documentation

◆ pImpl