Deoptimizer Class Reference

#include <deoptimizer.h>

Inheritance diagram for Deoptimizer:

Collaboration diagram for Deoptimizer:

Data Structures
class	BASE_EMBEDDED
struct	JumpTableEntry
class	TableEntryGenerator

Public Types
enum	BailoutType { EAGER, LAZY, SOFT, DEBUGGER }
enum	GetEntryMode { CALCULATE_ENTRY_ADDRESS, ENSURE_ENTRY_CODE }

Public Member Functions
int	output_count () const
Handle< JSFunction >	function () const
Handle< Code >	compiled_code () const
BailoutType	bailout_type () const
int	jsframe_count () const
	~Deoptimizer ()
void	MaterializeHeapObjects (JavaScriptFrameIterator *it)
int	ConvertJSFrameIndexToFrameIndex (int jsframe_index)
Isolate *	isolate () const
Public Member Functions inherited from Malloced
void *	operator new (size_t size)
void	operator delete (void *p)

Static Public Member Functions
static bool	TraceEnabledFor (BailoutType deopt_type, StackFrame::Type frame_type)
static const char *	MessageFor (BailoutType type)
static Deoptimizer *	New (JSFunction *function, BailoutType type, unsigned bailout_id, Address from, int fp_to_sp_delta, Isolate *isolate)
static Deoptimizer *	Grab (Isolate *isolate)
static void	EnsureRelocSpaceForLazyDeoptimization (Handle< Code > code)
static void	DeoptimizeFunction (JSFunction *function)
static void	DeoptimizeAll (Isolate *isolate)
static void	DeoptimizeGlobalObject (JSObject *object)
static void	DeoptimizeMarkedCode (Isolate *isolate)
static void	VisitAllOptimizedFunctions (Isolate *isolate, OptimizedFunctionVisitor *visitor)
static int	patch_size ()
static void	ComputeOutputFrames (Deoptimizer *deoptimizer)
static Address	GetDeoptimizationEntry (Isolate *isolate, int id, BailoutType type, GetEntryMode mode=ENSURE_ENTRY_CODE)
static int	GetDeoptimizationId (Isolate *isolate, Address addr, BailoutType type)
static int	GetOutputInfo (DeoptimizationOutputData *data, BailoutId node_id, SharedFunctionInfo *shared)
static int	input_offset ()
static int	output_count_offset ()
static int	output_offset ()
static int	has_alignment_padding_offset ()
static int	GetDeoptimizedCodeCount (Isolate *isolate)
static size_t	GetMaxDeoptTableSize ()
static void	EnsureCodeForDeoptimizationEntry (Isolate *isolate, BailoutType type, int max_entry_id)
Static Public Member Functions inherited from Malloced
static void	FatalProcessOutOfMemory ()
static void *	New (size_t size)
static void	Delete (void *p)

Static Public Attributes
static const int	kBailoutTypesWithCodeEntry = SOFT + 1
static const int	kNotDeoptimizationEntry = -1

Friends
class	FrameDescription
class	DeoptimizedFrameInfo

Detailed Description

Definition at line 124 of file deoptimizer.h.

Member Enumeration Documentation

enum BailoutType

Enumerator
EAGER
LAZY
SOFT
DEBUGGER

Definition at line 126 of file deoptimizer.h.

enum GetEntryMode

Enumerator
CALCULATE_ENTRY_ADDRESS
ENSURE_ENTRY_CODE

Definition at line 227 of file deoptimizer.h.

Constructor & Destructor Documentation

~Deoptimizer

(

)

Definition at line 659 of file deoptimizer.cc.

References ASSERT, and v8::internal::NULL.

Member Function Documentation

BailoutType bailout_type ( ) const

inline

Definition at line 159 of file deoptimizer.h.

Referenced by v8::internal::RUNTIME_FUNCTION().

Handle<Code> compiled_code ( ) const

inline

Definition at line 158 of file deoptimizer.h.

Referenced by v8::internal::RUNTIME_FUNCTION().

void ComputeOutputFrames ( Deoptimizer *  deoptimizer )

static

Definition at line 526 of file deoptimizer.cc.

int ConvertJSFrameIndexToFrameIndex

(

int

jsframe_index

)

Definition at line 147 of file deoptimizer.cc.

References FrameDescription::GetFrameType().

void DeoptimizeAll ( Isolate *  isolate )

static

Definition at line 450 of file deoptimizer.cc.

References Context::cast(), FixedArray::get(), Isolate::GetCodeTracer(), Isolate::heap(), Heap::native_contexts_list(), Context::NEXT_CONTEXT_LINK, and v8::internal::PrintF().

Referenced by Testing::DeoptimizeAll(), Object::ForceDelete(), and Execution::HandleStackGuardInterrupt().

void DeoptimizeFunction ( JSFunction *  function )

static

Definition at line 514 of file deoptimizer.cc.

References Deoptimizer::function(), Code::kind(), and Code::set_marked_for_deoptimization().

Referenced by v8::internal::RUNTIME_FUNCTION().

void DeoptimizeGlobalObject ( JSObject *  object )

static

Definition at line 483 of file deoptimizer.cc.

References ASSERT, GlobalObject::cast(), Isolate::GetCodeTracer(), HeapObject::GetHeap(), Object::GetPrototype(), Heap::isolate(), v8::internal::PrintF(), and V8PRIxPTR.

Referenced by Object::TurnOnAccessCheck().

void DeoptimizeMarkedCode ( Isolate *  isolate )

static

Definition at line 467 of file deoptimizer.cc.

References Context::cast(), FixedArray::get(), Isolate::GetCodeTracer(), Isolate::heap(), Heap::native_contexts_list(), Context::NEXT_CONTEXT_LINK, and v8::internal::PrintF().

Referenced by DependentCode::DeoptimizeDependentCodeGroup(), and Heap::DeoptMarkedAllocationSites().

void EnsureCodeForDeoptimizationEntry ( Isolate *  isolate, BailoutType  type, int  max_entry_id  )

static

Definition at line 2716 of file deoptimizer.cc.

References MemoryChunk::area_start(), ASSERT, CodeDesc::buffer, MemoryChunk::CommitArea(), v8::internal::CopyBytes(), Isolate::deoptimizer_data(), Deoptimizer::EAGER, Assembler::GetCode(), Deoptimizer::GetMaxDeoptTableSize(), CodeDesc::instr_size, v8::internal::KB, Deoptimizer::LAZY, v8::internal::Max(), v8::internal::NULL, AssemblerBase::set_emit_debug_code(), and Deoptimizer::SOFT.

Referenced by Deoptimizer::GetDeoptimizationEntry().

static void EnsureRelocSpaceForLazyDeoptimization ( Handle< Code >  code )

static

Handle<JSFunction> function ( ) const

inline

Definition at line 157 of file deoptimizer.h.

Referenced by Deoptimizer::DeoptimizeFunction(), and v8::internal::RUNTIME_FUNCTION().

Address GetDeoptimizationEntry ( Isolate *  isolate, int  id, BailoutType  type, GetEntryMode  mode = ENSURE_ENTRY_CODE  )

static

Definition at line 683 of file deoptimizer.cc.

References MemoryChunk::area_start(), ASSERT, Deoptimizer::CALCULATE_ENTRY_ADDRESS, Isolate::deoptimizer_data(), Deoptimizer::ENSURE_ENTRY_CODE, Deoptimizer::EnsureCodeForDeoptimizationEntry(), Deoptimizer::kBailoutTypesWithCodeEntry, and v8::internal::NULL.

int GetDeoptimizationId ( Isolate *  isolate, Address  addr, BailoutType  type  )

static

Definition at line 701 of file deoptimizer.cc.

References MemoryChunk::area_start(), ASSERT_EQ, Isolate::deoptimizer_data(), Deoptimizer::kNotDeoptimizationEntry, and v8::internal::NULL.

Referenced by Code::PrintDeoptLocation().

int GetDeoptimizedCodeCount ( Isolate *  isolate )

static

Definition at line 743 of file deoptimizer.cc.

References ASSERT, Context::cast(), Code::cast(), Context::DeoptimizedCodeListHead(), FixedArray::get(), Isolate::heap(), Code::kind(), Heap::native_contexts_list(), and Context::NEXT_CONTEXT_LINK.

size_t GetMaxDeoptTableSize ( )

static

Definition at line 128 of file deoptimizer.cc.

References OS::CommitPageSize().

Referenced by Deoptimizer::EnsureCodeForDeoptimizationEntry().

int GetOutputInfo ( DeoptimizationOutputData *  data, BailoutId  node_id, SharedFunctionInfo *  shared  )

static

Definition at line 718 of file deoptimizer.cc.

References DeoptimizationOutputData::AstId(), SharedFunctionInfo::DebugName(), DeoptimizationOutputData::DeoptPoints(), FATAL, SmartPointerBase< Deallocator, T >::get(), DeoptimizationOutputData::PcAndState(), v8::internal::PrintF(), SharedFunctionInfo::SourceCodePrint(), StringStream::ToCString(), String::ToCString(), and Smi::value().

Referenced by OptimizedFrame::Summarize(), and SharedFunctionInfo::VerifyBailoutId().

Deoptimizer * Grab ( Isolate *  isolate )

static

Definition at line 138 of file deoptimizer.cc.

References ASSERT, Isolate::deoptimizer_data(), and v8::internal::NULL.

Referenced by v8::internal::RUNTIME_FUNCTION().

static int has_alignment_padding_offset ( )

inlinestatic

Definition at line 252 of file deoptimizer.h.

References OFFSET_OF.

static int input_offset ( )

inlinestatic

Definition at line 246 of file deoptimizer.h.

References OFFSET_OF.

Isolate* isolate ( ) const

inline

Definition at line 303 of file deoptimizer.h.

int jsframe_count ( ) const

inline

Definition at line 162 of file deoptimizer.h.

Referenced by Deoptimizer::MaterializeHeapObjects().

void MaterializeHeapObjects

(

JavaScriptFrameIterator *

it

)

Definition at line 1915 of file deoptimizer.cc.

References List< T, P >::Add(), ASSERT, ASSERT_NE, List< T, P >::at(), Handle< T >::cast(), Deoptimizer::DEBUGGER, Isolate::factory(), JavaScriptFrame::function(), MaterializedObjectStore::Get(), v8::internal::handle(), JavaScriptFrame::has_adapted_arguments(), Deoptimizer::jsframe_count(), Isolate::materialized_object_store(), Factory::NewNumber(), v8::internal::NULL, Memory::Object_at(), v8::internal::PrintF(), and MaterializedObjectStore::Remove().

Referenced by v8::internal::RUNTIME_FUNCTION().

const char * MessageFor ( BailoutType  type )

static

Definition at line 547 of file deoptimizer.cc.

References Deoptimizer::DEBUGGER, Deoptimizer::EAGER, Deoptimizer::LAZY, v8::internal::NULL, Deoptimizer::SOFT, and UNREACHABLE.

Deoptimizer * New ( JSFunction *  function, BailoutType  type, unsigned  bailout_id, Address  from, int  fp_to_sp_delta, Isolate *  isolate  )

static

Definition at line 105 of file deoptimizer.cc.

References ASSERT, Isolate::deoptimizer_data(), and v8::internal::NULL.

int output_count ( ) const

inline

Definition at line 155 of file deoptimizer.h.

static int output_count_offset ( )

inlinestatic

Definition at line 247 of file deoptimizer.h.

References OFFSET_OF.

static int output_offset ( )

inlinestatic

Definition at line 250 of file deoptimizer.h.

References OFFSET_OF.

int patch_size ( )

static

Definition at line 41 of file deoptimizer-arm.cc.

References Assembler::kInstrSize.

bool TraceEnabledFor ( BailoutType  deopt_type, StackFrame::Type  frame_type  )

static

Definition at line 531 of file deoptimizer.cc.

References Deoptimizer::DEBUGGER, Deoptimizer::EAGER, Deoptimizer::LAZY, Deoptimizer::SOFT, v8::internal::STUB, and UNREACHABLE.

void VisitAllOptimizedFunctions ( Isolate *  isolate, OptimizedFunctionVisitor *  visitor  )

static

Definition at line 312 of file deoptimizer.cc.

References Context::cast(), FixedArray::get(), Isolate::heap(), Heap::native_contexts_list(), and Context::NEXT_CONTEXT_LINK.

Friends And Related Function Documentation

friend class DeoptimizedFrameInfo

friend

Definition at line 462 of file deoptimizer.h.

friend class FrameDescription

friend

Definition at line 461 of file deoptimizer.h.

Field Documentation

const int kBailoutTypesWithCodeEntry = SOFT + 1

static

Definition at line 135 of file deoptimizer.h.

Referenced by DeoptimizerData::DeoptimizerData(), Deoptimizer::GetDeoptimizationEntry(), and DeoptimizerData::~DeoptimizerData().

const int kNotDeoptimizationEntry = -1

static

Definition at line 258 of file deoptimizer.h.

Referenced by Deoptimizer::GetDeoptimizationId().

---

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

• src/deoptimizer.h
• src/arm/deoptimizer-arm.cc
• src/arm64/deoptimizer-arm64.cc
• src/deoptimizer.cc
• src/mips/deoptimizer-mips.cc