#include <il.h>

Inheritance diagram for dart::CheckStackOverflowInstr:

Public Types
enum	Kind { kOsrAndPreemption , kOsrOnly }

Public Types inherited from dart::TemplateInstruction< 0, NoThrow >
using	BaseClass = typename NoCSE< Instruction, PureInstruction >::Base

Public Types inherited from dart::Instruction
enum	Tag { FOR_EACH_INSTRUCTION =(DECLARE_TAG) kNumInstructions }

enum	SpeculativeMode { kGuardInputs , kNotSpeculative }

using	InputsIterable = InstructionIndexedPropertyIterable< InputsTrait >

using	SuccessorsIterable = InstructionIndexedPropertyIterable< SuccessorsTrait >

Public Member Functions
	CheckStackOverflowInstr (const InstructionSource &source, intptr_t stack_depth, intptr_t loop_depth, intptr_t deopt_id, Kind kind)

virtual TokenPosition	token_pos () const

bool	in_loop () const

intptr_t	stack_depth () const

intptr_t	loop_depth () const

virtual bool	ComputeCanDeoptimize () const

virtual bool	ComputeCanDeoptimizeAfterCall () const

virtual Instruction *	Canonicalize (FlowGraph *flow_graph)

virtual bool	HasUnknownSideEffects () const

virtual bool	CanEliminate (const BlockEntryInstr *block) const

virtual bool	UseSharedSlowPathStub (bool is_optimizing) const

Public Member Functions inherited from dart::TemplateInstruction< 0, NoThrow >
	TemplateInstruction (intptr_t deopt_id=DeoptId::kNone)

	TemplateInstruction (const InstructionSource &source, intptr_t deopt_id=DeoptId::kNone)

virtual intptr_t	InputCount () const

virtual Value *	InputAt (intptr_t i) const

virtual bool	MayThrow () const

Public Member Functions inherited from dart::Instruction
	Instruction (const InstructionSource &source, intptr_t deopt_id=DeoptId::kNone)

	Instruction (intptr_t deopt_id=DeoptId::kNone)

virtual	~Instruction ()

virtual Tag	tag () const =0

virtual intptr_t	statistics_tag () const

intptr_t	deopt_id () const

virtual TokenPosition	token_pos () const

InstructionSource	source () const

virtual intptr_t	InputCount () const =0

virtual Value *	InputAt (intptr_t i) const =0

void	SetInputAt (intptr_t i, Value *value)

InputsIterable	inputs ()

void	UnuseAllInputs ()

virtual intptr_t	ArgumentCount () const

Value *	ArgumentValueAt (intptr_t index) const

Definition *	ArgumentAt (intptr_t index) const

virtual void	SetMoveArguments (MoveArgumentsArray *move_arguments)

virtual MoveArgumentsArray *	GetMoveArguments () const

virtual void	ReplaceInputsWithMoveArguments (MoveArgumentsArray *move_arguments)

bool	HasMoveArguments () const

void	RepairArgumentUsesInEnvironment () const

virtual bool	ComputeCanDeoptimize () const =0

virtual bool	ComputeCanDeoptimizeAfterCall () const

bool	CanDeoptimize () const

virtual void	Accept (InstructionVisitor *visitor)=0

Instruction *	previous () const

void	set_previous (Instruction *instr)

Instruction *	next () const

void	set_next (Instruction *instr)

void	LinkTo (Instruction *next)

Instruction *	RemoveFromGraph (bool return_previous=true)

virtual intptr_t	SuccessorCount () const

virtual BlockEntryInstr *	SuccessorAt (intptr_t index) const

SuccessorsIterable	successors () const

void	Goto (JoinEntryInstr *entry)

virtual const char *	DebugName () const =0

void	CheckField (const Field &field) const

const char *	ToCString () const

	DECLARE_INSTRUCTION_TYPE_CHECK (BlockEntryWithInitialDefs, BlockEntryWithInitialDefs) template< typename T > T *Cast()

template<typename T >
const T *	Cast () const

LocationSummary *	locs ()

bool	HasLocs () const

virtual LocationSummary *	MakeLocationSummary (Zone *zone, bool is_optimizing) const =0

void	InitializeLocationSummary (Zone *zone, bool optimizing)

virtual void	EmitNativeCode (FlowGraphCompiler *compiler)

Environment *	env () const

void	SetEnvironment (Environment *deopt_env)

void	RemoveEnvironment ()

void	ReplaceInEnvironment (Definition current, Definition replacement)

virtual intptr_t	NumberOfInputsConsumedBeforeCall () const

intptr_t	GetPassSpecificId (CompilerPass::Id pass) const

void	SetPassSpecificId (CompilerPass::Id pass, intptr_t id)

bool	HasPassSpecificId (CompilerPass::Id pass) const

bool	HasUnmatchedInputRepresentations () const

virtual Representation	RequiredInputRepresentation (intptr_t idx) const

SpeculativeMode	SpeculativeModeOfInputs () const

virtual SpeculativeMode	SpeculativeModeOfInput (intptr_t index) const

virtual Representation	representation () const

bool	WasEliminated () const

virtual intptr_t	DeoptimizationTarget () const

virtual Instruction *	Canonicalize (FlowGraph *flow_graph)

void	InsertBefore (Instruction *next)

void	InsertAfter (Instruction *prev)

Instruction *	AppendInstruction (Instruction *tail)

virtual bool	AllowsCSE () const

virtual bool	HasUnknownSideEffects () const =0

virtual bool	CanCallDart () const

virtual bool	CanTriggerGC () const

virtual BlockEntryInstr *	GetBlock ()

virtual intptr_t	inlining_id () const

virtual void	set_inlining_id (intptr_t value)

virtual bool	has_inlining_id () const

virtual uword	Hash () const

bool	Equals (const Instruction &other) const

virtual bool	AttributesEqual (const Instruction &other) const

void	InheritDeoptTarget (Zone zone, Instruction other)

bool	NeedsEnvironment () const

virtual bool	CanBecomeDeoptimizationTarget () const

void	InheritDeoptTargetAfter (FlowGraph flow_graph, Definition call, Definition *result)

virtual bool	MayThrow () const =0

virtual bool	MayHaveVisibleEffect () const

virtual bool	CanEliminate (const BlockEntryInstr *block) const

bool	CanEliminate ()

bool	IsDominatedBy (Instruction *dom)

void	ClearEnv ()

void	Unsupported (FlowGraphCompiler *compiler)

virtual bool	UseSharedSlowPathStub (bool is_optimizing) const

Location::Kind	RegisterKindForResult () const

Public Member Functions inherited from dart::ZoneAllocated
	ZoneAllocated ()

void *	operator new (size_t size)

void *	operator new (size_t size, Zone *zone)

void	operator delete (void *pointer)

Additional Inherited Members
Static Public Member Functions inherited from dart::Instruction
static const ICData *	GetICData (const ZoneGrowableArray< const ICData * > &ic_data_array, intptr_t deopt_id, bool is_static_call)

static LocationSummary *	MakeCallSummary (Zone zone, const Instruction instr, LocationSummary *locs=nullptr)

static bool	SlowPathSharingSupported (bool is_optimizing)

Static Public Attributes inherited from dart::Instruction
static const intptr_t	kInstructionAttrs [kNumInstructions]

Protected Member Functions inherited from dart::Instruction
intptr_t	GetDeoptId () const

virtual void	CopyDeoptIdFrom (const Instruction &instr)

void	WriteExtraWithoutInputs (FlowGraphSerializer *s)

void	ReadExtraWithoutInputs (FlowGraphDeserializer *d)

Protected Attributes inherited from dart::TemplateInstruction< 0, NoThrow >
EmbeddedArray< Value *, N >	inputs_

Detailed Description

Definition at line 9877 of file il.h.

Member Enumeration Documentation

◆ Kind

enum dart::CheckStackOverflowInstr::Kind

Enumerator
kOsrAndPreemption
kOsrOnly

Definition at line 9879 of file il.h.

            {
    // kOsrAndPreemption stack overflow checks are emitted in both unoptimized
    // and optimized versions of the code and they serve as both preemption and
    // OSR entry points.
    kOsrAndPreemption,
 
    // kOsrOnly stack overflow checks are only needed in the unoptimized code
    // because we can't OSR optimized code.
    kOsrOnly,
  };

Constructor & Destructor Documentation

◆ CheckStackOverflowInstr()

dart::CheckStackOverflowInstr::CheckStackOverflowInstr	(	const InstructionSource &	source,
		intptr_t	stack_depth,
		intptr_t	loop_depth,
		intptr_t	deopt_id,
		Kind	kind
	)

inline

Definition at line 9890 of file il.h.

      : TemplateInstruction(source, deopt_id),
        token_pos_(source.token_pos),
        stack_depth_(stack_depth),
        loop_depth_(loop_depth),
        kind_(kind) {
    ASSERT(kind != kOsrOnly || loop_depth > 0);
  }

Member Function Documentation

◆ CanEliminate()

virtual bool dart::CheckStackOverflowInstr::CanEliminate ( const BlockEntryInstr * block ) const

inlinevirtual

Reimplemented from dart::Instruction.

Definition at line 9919 of file il.h.

                                                                {
    return false;
  }

◆ Canonicalize()

Instruction * dart::CheckStackOverflowInstr::Canonicalize ( FlowGraph * flow_graph )

virtual

Reimplemented from dart::Instruction.

Definition at line 2653 of file il.cc.

                                                                        {
  switch (kind_) {
    case kOsrAndPreemption:
      return this;
    case kOsrOnly:
      // Don't need OSR entries in the optimized code.
      return nullptr;
  }
 
  // Switch above exhausts all possibilities but some compilers can't figure
  // it out.
  UNREACHABLE();
  return this;
}

◆ ComputeCanDeoptimize()

virtual bool dart::CheckStackOverflowInstr::ComputeCanDeoptimize ( ) const

inlinevirtual

Implements dart::Instruction.

Definition at line 9910 of file il.h.

9910{ return false; }

◆ ComputeCanDeoptimizeAfterCall()

virtual bool dart::CheckStackOverflowInstr::ComputeCanDeoptimizeAfterCall ( ) const

inlinevirtual

Reimplemented from dart::Instruction.

Definition at line 9911 of file il.h.

                                                     {
    return !CompilerState::Current().is_aot();
  }

◆ HasUnknownSideEffects()

virtual bool dart::CheckStackOverflowInstr::HasUnknownSideEffects ( ) const

inlinevirtual

Implements dart::Instruction.

Definition at line 9917 of file il.h.

9917{ return false; }

◆ in_loop()

bool dart::CheckStackOverflowInstr::in_loop ( ) const

inline

Definition at line 9904 of file il.h.

9904{ return loop_depth_ > 0; }

◆ loop_depth()

intptr_t dart::CheckStackOverflowInstr::loop_depth ( ) const

inline

Definition at line 9906 of file il.h.

9906{ return loop_depth_; }

◆ stack_depth()

intptr_t dart::CheckStackOverflowInstr::stack_depth ( ) const

inline

Definition at line 9905 of file il.h.

9905{ return stack_depth_; }

◆ token_pos()

virtual TokenPosition dart::CheckStackOverflowInstr::token_pos ( ) const

inlinevirtual

Reimplemented from dart::Instruction.

Definition at line 9903 of file il.h.

9903{ return token_pos_; }

◆ UseSharedSlowPathStub()

virtual bool dart::CheckStackOverflowInstr::UseSharedSlowPathStub ( bool is_optimizing ) const

inlinevirtual

Reimplemented from dart::Instruction.

Definition at line 9923 of file il.h.

                                                               {
    return SlowPathSharingSupported(is_optimizing);
  }

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

third_party/dart-lang/sdk/runtime/vm/compiler/backend/il.h
third_party/dart-lang/sdk/runtime/vm/compiler/backend/il.cc

Public Types

Public Member Functions

Additional Inherited Members

Detailed Description

Member Enumeration Documentation

◆ Kind

Constructor & Destructor Documentation

◆ CheckStackOverflowInstr()

Member Function Documentation

◆ CanEliminate()

◆ Canonicalize()

◆ ComputeCanDeoptimize()

◆ ComputeCanDeoptimizeAfterCall()

◆ HasUnknownSideEffects()

◆ in_loop()

◆ loop_depth()

◆ stack_depth()

◆ token_pos()

◆ UseSharedSlowPathStub()