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Classes | Public Types | Public Member Functions | Private Types | Private Attributes | Friends | List of all members
v8::internal::compiler::TopLevelLiveRange Class Referencefinal

#include <register-allocator.h>

Inheritance diagram for v8::internal::compiler::TopLevelLiveRange:
Collaboration diagram for v8::internal::compiler::TopLevelLiveRange:

Classes

struct  SpillMoveInsertionList
 

Public Types

enum  SlotUseKind { kNoSlotUse , kDeferredSlotUse , kGeneralSlotUse }
 
enum class  SpillType { kNoSpillType , kSpillOperand , kSpillRange , kDeferredSpillRange }
 

Public Member Functions

 TopLevelLiveRange (int vreg, MachineRepresentation rep, Zone *zone)
 
 TopLevelLiveRange (const TopLevelLiveRange &)=delete
 
TopLevelLiveRange & operator= (const TopLevelLiveRange &)=delete
 
int spill_start_index () const
 
bool IsFixed () const
 
bool IsDeferredFixed () const
 
void set_deferred_fixed ()
 
bool is_phi () const
 
void set_is_phi (bool value)
 
bool is_non_loop_phi () const
 
bool is_loop_phi () const
 
void set_is_non_loop_phi (bool value)
 
bool SpillAtLoopHeaderNotBeneficial () const
 
void set_spilling_at_loop_header_not_beneficial ()
 
bool has_slot_use () const
 
bool has_non_deferred_slot_use () const
 
void reset_slot_use ()
 
void register_slot_use (SlotUseKind value)
 
SlotUseKind slot_use_kind () const
 
void EnsureInterval (LifetimePosition start, LifetimePosition end, Zone *zone)
 
void AddUseInterval (LifetimePosition start, LifetimePosition end, Zone *zone)
 
void AddUsePosition (UsePosition *pos, Zone *zone)
 
void ShortenTo (LifetimePosition start)
 
void SetSpillRange (SpillRange *spill_range)
 
void set_spill_type (SpillType value)
 
SpillType spill_type () const
 
InstructionOperand * GetSpillOperand () const
 
SpillRange * GetAllocatedSpillRange () const
 
SpillRange * GetSpillRange () const
 
bool HasNoSpillType () const
 
bool HasSpillOperand () const
 
bool HasSpillRange () const
 
bool HasGeneralSpillRange () const
 
AllocatedOperand GetSpillRangeOperand () const
 
void RecordSpillLocation (Zone *zone, int gap_index, InstructionOperand *operand)
 
void SetSpillOperand (InstructionOperand *operand)
 
void SetSpillStartIndex (int start)
 
void FilterSpillMoves (RegisterAllocationData *data, const InstructionOperand &operand)
 
void CommitSpillMoves (RegisterAllocationData *data, const InstructionOperand &operand)
 
void TreatAsSpilledInDeferredBlock (Zone *zone)
 
void TransitionRangeToDeferredSpill (Zone *zone)
 
void TransitionRangeToSpillAtDefinition ()
 
bool MayRequireSpillRange () const
 
void UpdateSpillRangePostMerge (TopLevelLiveRange *merged)
 
int vreg () const
 
LiveRange * GetChildCovers (LifetimePosition pos)
 
const ZoneVector< LiveRange * > & Children () const
 
int GetNextChildId ()
 
bool IsSpilledOnlyInDeferredBlocks (const RegisterAllocationData *data) const
 
SpillMoveInsertionList * GetSpillMoveInsertionLocations (const RegisterAllocationData *data) const
 
void MarkHasPreassignedSlot ()
 
bool has_preassigned_slot () const
 
void SetLateSpillingSelected (bool late_spilling_selected)
 
bool LateSpillingSelected () const
 
void AddBlockRequiringSpillOperand (RpoNumber block_id, const RegisterAllocationData *data)
 
SparseBitVector * GetListOfBlocksRequiringSpillOperands (const RegisterAllocationData *data) const
 
LiveRangeBundle * get_bundle () const
 
void set_bundle (LiveRangeBundle *bundle)
 
- Public Member Functions inherited from v8::internal::compiler::LiveRange
 LiveRange (const LiveRange &)=delete
 
LiveRange & operator= (const LiveRange &)=delete
 
const UseIntervalVector & intervals () const
 
base::Vector< UsePosition * > positions () const
 
TopLevelLiveRange * TopLevel ()
 
const TopLevelLiveRange * TopLevel () const
 
bool IsTopLevel () const
 
LiveRange * next () const
 
int relative_id () const
 
bool IsEmpty () const
 
InstructionOperand GetAssignedOperand () const
 
MachineRepresentation representation () const
 
int assigned_register () const
 
bool HasRegisterAssigned () const
 
void set_assigned_register (int reg)
 
void UnsetAssignedRegister ()
 
bool ShouldRecombine () const
 
void SetRecombine ()
 
void set_controlflow_hint (int reg)
 
int controlflow_hint () const
 
bool RegisterFromControlFlow (int *reg)
 
bool spilled () const
 
void AttachToNext (Zone *zone)
 
void Unspill ()
 
void Spill ()
 
RegisterKind kind () const
 
UsePosition *const * NextUsePosition (LifetimePosition start) const
 
UsePosition * NextRegisterPosition (LifetimePosition start) const
 
UsePosition * NextUsePositionRegisterIsBeneficial (LifetimePosition start) const
 
LifetimePosition NextLifetimePositionRegisterIsBeneficial (const LifetimePosition &start) const
 
UsePosition * NextUsePositionSpillDetrimental (LifetimePosition start) const
 
bool CanBeSpilled (LifetimePosition pos) const
 
LiveRange * SplitAt (LifetimePosition position, Zone *zone)
 
bool RegisterFromFirstHint (int *register_index)
 
UsePosition * current_hint_position () const
 
LifetimePosition Start () const
 
LifetimePosition End () const
 
bool ShouldBeAllocatedBefore (const LiveRange *other) const
 
bool CanCover (LifetimePosition position) const
 
bool Covers (LifetimePosition position)
 
LifetimePosition NextStartAfter (LifetimePosition position)
 
LifetimePosition NextEndAfter (LifetimePosition position)
 
LifetimePosition FirstIntersection (LiveRange *other)
 
LifetimePosition NextStart () const
 
void ConvertUsesToOperand (const InstructionOperand &op, const InstructionOperand &spill_op)
 
void SetUseHints (int register_index)
 
void UnsetUseHints ()
 
void ResetCurrentHintPosition ()
 
void Print (const RegisterConfiguration *config, bool with_children) const
 
void Print (bool with_children) const
 
bool RegisterFromBundle (int *hint) const
 
void UpdateBundleRegister (int reg) const
 

Private Types

enum class  SpillRangeMode : uint8_t { kNotSet , kSpillAtDefinition , kSpillLater }
 
using HasSlotUseField = base::BitField<SlotUseKind, 1, 2>
 
using IsPhiField = base::BitField<bool, 3, 1>
 
using IsNonLoopPhiField = base::BitField<bool, 4, 1>
 
using SpillTypeField = base::BitField<SpillType, 5, 2>
 
using DeferredFixedField = base::BitField<bool, 28, 1>
 
using SpillAtLoopHeaderNotBeneficialField = base::BitField<bool, 29, 1>
 
using SpillRangeModeField = base::BitField<SpillRangeMode, 30, 2>
 

Private Attributes

int vreg_
 
int last_child_id_
 
union { 
 
   InstructionOperand *   spill_operand_ 
 
   SpillRange *   spill_range_ 
 
};  
 
union { 
 
   SpillMoveInsertionList *   spill_move_insertion_locations_ 
 
   SparseBitVector *   list_of_blocks_requiring_spill_operands_ 
 
};  
 
LiveRangeBundle * bundle_ = nullptr
 
UsePositionVector positions_
 
ZoneVector< LiveRange * > children_
 
bool spilled_in_deferred_blocks_
 
bool has_preassigned_slot_
 
int spill_start_index_
 

Friends

class LiveRange
 

Detailed Description

Definition at line 1016 of file register-allocator.h.

Member Typedef Documentation

◆ DeferredFixedField

using v8::internal::compiler::TopLevelLiveRange::DeferredFixedField = base::BitField<bool, 28, 1>
private

Definition at line 1251 of file register-allocator.h.

◆ HasSlotUseField

using v8::internal::compiler::TopLevelLiveRange::HasSlotUseField = base::BitField<SlotUseKind, 1, 2>
private

Definition at line 1247 of file register-allocator.h.

◆ IsNonLoopPhiField

using v8::internal::compiler::TopLevelLiveRange::IsNonLoopPhiField = base::BitField<bool, 4, 1>
private

Definition at line 1249 of file register-allocator.h.

◆ IsPhiField

using v8::internal::compiler::TopLevelLiveRange::IsPhiField = base::BitField<bool, 3, 1>
private

Definition at line 1248 of file register-allocator.h.

◆ SpillAtLoopHeaderNotBeneficialField

using v8::internal::compiler::TopLevelLiveRange::SpillAtLoopHeaderNotBeneficialField = base::BitField<bool, 29, 1>
private

Definition at line 1252 of file register-allocator.h.

◆ SpillRangeModeField

using v8::internal::compiler::TopLevelLiveRange::SpillRangeModeField = base::BitField<SpillRangeMode, 30, 2>
private

Definition at line 1253 of file register-allocator.h.

◆ SpillTypeField

using v8::internal::compiler::TopLevelLiveRange::SpillTypeField = base::BitField<SpillType, 5, 2>
private

Definition at line 1250 of file register-allocator.h.

Member Enumeration Documentation

◆ SlotUseKind

enum v8::internal::compiler::TopLevelLiveRange::SlotUseKind
Enumerator
kNoSlotUse 
kDeferredSlotUse 
kGeneralSlotUse 

Definition at line 1043 of file register-allocator.h.

◆ SpillRangeMode

enum class v8::internal::compiler::TopLevelLiveRange::SpillRangeMode : uint8_t
strongprivate
Enumerator
kNotSet 
kSpillAtDefinition 
kSpillLater 

Definition at line 1241 of file register-allocator.h.

◆ SpillType

enum class v8::internal::compiler::TopLevelLiveRange::SpillType
strong
Enumerator
kNoSpillType 
kSpillOperand 
kSpillRange 
kDeferredSpillRange 

Definition at line 1085 of file register-allocator.h.

Constructor & Destructor Documentation

◆ TopLevelLiveRange() [1/2]

v8::internal::compiler::TopLevelLiveRange::TopLevelLiveRange ( int vreg,
MachineRepresentation rep,
Zone * zone )
explicit

Definition at line 688 of file register-allocator.cc.

◆ TopLevelLiveRange() [2/2]

v8::internal::compiler::TopLevelLiveRange::TopLevelLiveRange ( const TopLevelLiveRange & )
delete

Member Function Documentation

◆ AddBlockRequiringSpillOperand()

void v8::internal::compiler::TopLevelLiveRange::AddBlockRequiringSpillOperand ( RpoNumber block_id,
const RegisterAllocationData * data )
inline

Definition at line 1221 of file register-allocator.h.

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◆ AddUseInterval()

void v8::internal::compiler::TopLevelLiveRange::AddUseInterval ( LifetimePosition start,
LifetimePosition end,
Zone * zone )

Definition at line 860 of file register-allocator.cc.

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◆ AddUsePosition()

void v8::internal::compiler::TopLevelLiveRange::AddUsePosition ( UsePosition * pos,
Zone * zone )

Definition at line 895 of file register-allocator.cc.

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◆ Children()

const ZoneVector< LiveRange * > & v8::internal::compiler::TopLevelLiveRange::Children ( ) const
inline

Definition at line 1182 of file register-allocator.h.

◆ CommitSpillMoves()

void v8::internal::compiler::TopLevelLiveRange::CommitSpillMoves ( RegisterAllocationData * data,
const InstructionOperand & operand )

Definition at line 709 of file register-allocator.cc.

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◆ EnsureInterval()

void v8::internal::compiler::TopLevelLiveRange::EnsureInterval ( LifetimePosition start,
LifetimePosition end,
Zone * zone )

Definition at line 836 of file register-allocator.cc.

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◆ FilterSpillMoves()

void v8::internal::compiler::TopLevelLiveRange::FilterSpillMoves ( RegisterAllocationData * data,
const InstructionOperand & operand )

Definition at line 731 of file register-allocator.cc.

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◆ get_bundle()

LiveRangeBundle * v8::internal::compiler::TopLevelLiveRange::get_bundle ( ) const
inline

Definition at line 1233 of file register-allocator.h.

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◆ GetAllocatedSpillRange()

SpillRange * v8::internal::compiler::TopLevelLiveRange::GetAllocatedSpillRange ( ) const
inline

Definition at line 1100 of file register-allocator.h.

◆ GetChildCovers()

LiveRange * v8::internal::compiler::TopLevelLiveRange::GetChildCovers ( LifetimePosition pos)

Definition at line 790 of file register-allocator.cc.

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◆ GetListOfBlocksRequiringSpillOperands()

SparseBitVector * v8::internal::compiler::TopLevelLiveRange::GetListOfBlocksRequiringSpillOperands ( const RegisterAllocationData * data) const
inline

Definition at line 1227 of file register-allocator.h.

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◆ GetNextChildId()

int v8::internal::compiler::TopLevelLiveRange::GetNextChildId ( )
inline

Definition at line 1184 of file register-allocator.h.

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◆ GetSpillMoveInsertionLocations()

SpillMoveInsertionList * v8::internal::compiler::TopLevelLiveRange::GetSpillMoveInsertionLocations ( const RegisterAllocationData * data) const
inline

Definition at line 1192 of file register-allocator.h.

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◆ GetSpillOperand()

InstructionOperand * v8::internal::compiler::TopLevelLiveRange::GetSpillOperand ( ) const
inline

Definition at line 1095 of file register-allocator.h.

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◆ GetSpillRange()

SpillRange * v8::internal::compiler::TopLevelLiveRange::GetSpillRange ( ) const
inline

Definition at line 1105 of file register-allocator.h.

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◆ GetSpillRangeOperand()

AllocatedOperand v8::internal::compiler::TopLevelLiveRange::GetSpillRangeOperand ( ) const

Definition at line 784 of file register-allocator.cc.

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◆ has_non_deferred_slot_use()

bool v8::internal::compiler::TopLevelLiveRange::has_non_deferred_slot_use ( ) const
inline

Definition at line 1049 of file register-allocator.h.

◆ has_preassigned_slot()

bool v8::internal::compiler::TopLevelLiveRange::has_preassigned_slot ( ) const
inline

Definition at line 1199 of file register-allocator.h.

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◆ has_slot_use()

bool v8::internal::compiler::TopLevelLiveRange::has_slot_use ( ) const
inline

Definition at line 1045 of file register-allocator.h.

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◆ HasGeneralSpillRange()

bool v8::internal::compiler::TopLevelLiveRange::HasGeneralSpillRange ( ) const
inline

Definition at line 1116 of file register-allocator.h.

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◆ HasNoSpillType()

bool v8::internal::compiler::TopLevelLiveRange::HasNoSpillType ( ) const
inline

Definition at line 1109 of file register-allocator.h.

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◆ HasSpillOperand()

bool v8::internal::compiler::TopLevelLiveRange::HasSpillOperand ( ) const
inline

Definition at line 1112 of file register-allocator.h.

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◆ HasSpillRange()

bool v8::internal::compiler::TopLevelLiveRange::HasSpillRange ( ) const
inline

Definition at line 1115 of file register-allocator.h.

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◆ is_loop_phi()

bool v8::internal::compiler::TopLevelLiveRange::is_loop_phi ( ) const
inline

Definition at line 1032 of file register-allocator.h.

◆ is_non_loop_phi()

bool v8::internal::compiler::TopLevelLiveRange::is_non_loop_phi ( ) const
inline

Definition at line 1031 of file register-allocator.h.

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◆ is_phi()

bool v8::internal::compiler::TopLevelLiveRange::is_phi ( ) const
inline

Definition at line 1028 of file register-allocator.h.

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◆ IsDeferredFixed()

bool v8::internal::compiler::TopLevelLiveRange::IsDeferredFixed ( ) const
inline

Definition at line 1026 of file register-allocator.h.

◆ IsFixed()

bool v8::internal::compiler::TopLevelLiveRange::IsFixed ( ) const
inline

Definition at line 1024 of file register-allocator.h.

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◆ IsSpilledOnlyInDeferredBlocks()

bool v8::internal::compiler::TopLevelLiveRange::IsSpilledOnlyInDeferredBlocks ( const RegisterAllocationData * data) const
inline

Definition at line 1186 of file register-allocator.h.

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◆ LateSpillingSelected()

bool v8::internal::compiler::TopLevelLiveRange::LateSpillingSelected ( ) const
inline

Definition at line 1214 of file register-allocator.h.

◆ MarkHasPreassignedSlot()

void v8::internal::compiler::TopLevelLiveRange::MarkHasPreassignedSlot ( )
inline

Definition at line 1198 of file register-allocator.h.

◆ MayRequireSpillRange()

bool v8::internal::compiler::TopLevelLiveRange::MayRequireSpillRange ( ) const
inline

Definition at line 1167 of file register-allocator.h.

◆ operator=()

TopLevelLiveRange & v8::internal::compiler::TopLevelLiveRange::operator= ( const TopLevelLiveRange & )
delete

◆ RecordSpillLocation()

void v8::internal::compiler::TopLevelLiveRange::RecordSpillLocation ( Zone * zone,
int gap_index,
InstructionOperand * operand )

Definition at line 702 of file register-allocator.cc.

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◆ register_slot_use()

void v8::internal::compiler::TopLevelLiveRange::register_slot_use ( SlotUseKind value)
inline

Definition at line 1056 of file register-allocator.h.

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◆ reset_slot_use()

void v8::internal::compiler::TopLevelLiveRange::reset_slot_use ( )
inline

Definition at line 1053 of file register-allocator.h.

◆ set_bundle()

void v8::internal::compiler::TopLevelLiveRange::set_bundle ( LiveRangeBundle * bundle)
inline

Definition at line 1234 of file register-allocator.h.

◆ set_deferred_fixed()

void v8::internal::compiler::TopLevelLiveRange::set_deferred_fixed ( )
inline

Definition at line 1027 of file register-allocator.h.

◆ set_is_non_loop_phi()

void v8::internal::compiler::TopLevelLiveRange::set_is_non_loop_phi ( bool value)
inline

Definition at line 1033 of file register-allocator.h.

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◆ set_is_phi()

void v8::internal::compiler::TopLevelLiveRange::set_is_phi ( bool value)
inline

Definition at line 1029 of file register-allocator.h.

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◆ set_spill_type()

void v8::internal::compiler::TopLevelLiveRange::set_spill_type ( SpillType value)
inline

Definition at line 1091 of file register-allocator.h.

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◆ set_spilling_at_loop_header_not_beneficial()

void v8::internal::compiler::TopLevelLiveRange::set_spilling_at_loop_header_not_beneficial ( )
inline

Definition at line 1039 of file register-allocator.h.

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◆ SetLateSpillingSelected()

void v8::internal::compiler::TopLevelLiveRange::SetLateSpillingSelected ( bool late_spilling_selected)
inline

Definition at line 1204 of file register-allocator.h.

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◆ SetSpillOperand()

void v8::internal::compiler::TopLevelLiveRange::SetSpillOperand ( InstructionOperand * operand)

Definition at line 771 of file register-allocator.cc.

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◆ SetSpillRange()

void v8::internal::compiler::TopLevelLiveRange::SetSpillRange ( SpillRange * spill_range)

Definition at line 778 of file register-allocator.cc.

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◆ SetSpillStartIndex()

void v8::internal::compiler::TopLevelLiveRange::SetSpillStartIndex ( int start)
inline

Definition at line 1124 of file register-allocator.h.

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◆ ShortenTo()

void v8::internal::compiler::TopLevelLiveRange::ShortenTo ( LifetimePosition start)

Definition at line 828 of file register-allocator.cc.

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◆ slot_use_kind()

SlotUseKind v8::internal::compiler::TopLevelLiveRange::slot_use_kind ( ) const
inline

Definition at line 1059 of file register-allocator.h.

◆ spill_start_index()

int v8::internal::compiler::TopLevelLiveRange::spill_start_index ( ) const
inline

Definition at line 1022 of file register-allocator.h.

◆ spill_type()

SpillType v8::internal::compiler::TopLevelLiveRange::spill_type ( ) const
inline

Definition at line 1094 of file register-allocator.h.

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◆ SpillAtLoopHeaderNotBeneficial()

bool v8::internal::compiler::TopLevelLiveRange::SpillAtLoopHeaderNotBeneficial ( ) const
inline

Definition at line 1036 of file register-allocator.h.

◆ TransitionRangeToDeferredSpill()

void v8::internal::compiler::TopLevelLiveRange::TransitionRangeToDeferredSpill ( Zone * zone)
inline

Definition at line 1152 of file register-allocator.h.

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◆ TransitionRangeToSpillAtDefinition()

void v8::internal::compiler::TopLevelLiveRange::TransitionRangeToSpillAtDefinition ( )
inline

Definition at line 1160 of file register-allocator.h.

◆ TreatAsSpilledInDeferredBlock()

void v8::internal::compiler::TopLevelLiveRange::TreatAsSpilledInDeferredBlock ( Zone * zone)
inline

Definition at line 1143 of file register-allocator.h.

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◆ UpdateSpillRangePostMerge()

void v8::internal::compiler::TopLevelLiveRange::UpdateSpillRangePostMerge ( TopLevelLiveRange * merged)

◆ vreg()

int v8::internal::compiler::TopLevelLiveRange::vreg ( ) const
inline

Definition at line 1171 of file register-allocator.h.

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Friends And Related Symbol Documentation

◆ LiveRange

friend class LiveRange
friend

Definition at line 1237 of file register-allocator.h.

Member Data Documentation

◆ [union]

union { ... } v8::internal::compiler::TopLevelLiveRange

◆ [union]

union { ... } v8::internal::compiler::TopLevelLiveRange

◆ bundle_

LiveRangeBundle* v8::internal::compiler::TopLevelLiveRange::bundle_ = nullptr
private

Definition at line 1268 of file register-allocator.h.

◆ children_

ZoneVector<LiveRange*> v8::internal::compiler::TopLevelLiveRange::children_
private

Definition at line 1274 of file register-allocator.h.

◆ has_preassigned_slot_

bool v8::internal::compiler::TopLevelLiveRange::has_preassigned_slot_
private

Definition at line 1279 of file register-allocator.h.

◆ last_child_id_

int v8::internal::compiler::TopLevelLiveRange::last_child_id_
private

Definition at line 1256 of file register-allocator.h.

◆ list_of_blocks_requiring_spill_operands_

SparseBitVector* v8::internal::compiler::TopLevelLiveRange::list_of_blocks_requiring_spill_operands_

Definition at line 1265 of file register-allocator.h.

◆ positions_

UsePositionVector v8::internal::compiler::TopLevelLiveRange::positions_
private

Definition at line 1270 of file register-allocator.h.

◆ spill_move_insertion_locations_

SpillMoveInsertionList* v8::internal::compiler::TopLevelLiveRange::spill_move_insertion_locations_

Definition at line 1264 of file register-allocator.h.

◆ spill_operand_

InstructionOperand* v8::internal::compiler::TopLevelLiveRange::spill_operand_

Definition at line 1259 of file register-allocator.h.

◆ spill_range_

SpillRange* v8::internal::compiler::TopLevelLiveRange::spill_range_

Definition at line 1260 of file register-allocator.h.

◆ spill_start_index_

int v8::internal::compiler::TopLevelLiveRange::spill_start_index_
private

Definition at line 1281 of file register-allocator.h.

◆ spilled_in_deferred_blocks_

bool v8::internal::compiler::TopLevelLiveRange::spilled_in_deferred_blocks_
private

Definition at line 1278 of file register-allocator.h.

◆ vreg_

int v8::internal::compiler::TopLevelLiveRange::vreg_
private

Definition at line 1255 of file register-allocator.h.

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