AuroraMiddleware/v8
1
0
Fork 0
Code Issues 2 Pull Requests Releases Wiki Activity

Make some functions that are hit during renderer startup available for inlining

Browse Source 
This is towards closing the perf gap between the MSVC build (which uses link-
time optimization) and Clang (where LTO isn't ready on Windows yet). We did
a study (see bug) to see which non-inlined functions are hit a lot during render
start-up, and which would be inlined during LTO. This should benefit performance
in all builds which currently don't use LTO (Android, Linux, Mac) as well as
the Win/Clang build.

The binary size of chrome_child.dll increases by 2KB with this.

BUG=chromium:728324

Review-Url: https://codereview.chromium.org/2950993002
Cr-Commit-Position: refs/heads/master@{#46191}
This commit is contained in:
hans 2017-06-23 14:12:13 -07:00 committed by Commit Bot
parent ee0e295d8e
commit d00d52be1f
21 changed files with 291 additions and 312 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
src/ast/ast.cc
View File

@ -200,17 +200,6 @@ VariableProxy::VariableProxy(Variable* var, int start_position)
BindTo(var);
}
VariableProxy::VariableProxy(const AstRawString* name,
VariableKind variable_kind, int start_position)
: Expression(start_position, kVariableProxy),
raw_name_(name),
next_unresolved_(nullptr) {
bit_field_ |= IsThisField::encode(variable_kind == THIS_VARIABLE) |
IsAssignedField::encode(false) |
IsResolvedField::encode(false) |
HoleCheckModeField::encode(HoleCheckMode::kElided);
}
VariableProxy::VariableProxy(const VariableProxy* copy_from)
: Expression(copy_from->position(), kVariableProxy),
next_unresolved_(nullptr) {

12
src/ast/ast.h
View File

@ -1585,8 +1585,18 @@ class VariableProxy final : public Expression {
friend class AstNodeFactory;
VariableProxy(Variable* var, int start_position);
VariableProxy(const AstRawString* name, VariableKind variable_kind,
int start_position);
int start_position)
: Expression(start_position, kVariableProxy),
raw_name_(name),
next_unresolved_(nullptr) {
bit_field_ |= IsThisField::encode(variable_kind == THIS_VARIABLE) |
IsAssignedField::encode(false) |
IsResolvedField::encode(false) |
HoleCheckModeField::encode(HoleCheckMode::kElided);
}
explicit VariableProxy(const VariableProxy* copy_from);
class IsThisField : public BitField<bool, Expression::kNextBitFieldIndex, 1> {

14
src/ast/scopes.cc
View File

@ -1234,20 +1234,6 @@ Variable* Scope::DeclareVariableName(const AstRawString* name,
}
}
VariableProxy* Scope::NewUnresolved(AstNodeFactory* factory,
const AstRawString* name,
int start_position, VariableKind kind) {
// Note that we must not share the unresolved variables with
// the same name because they may be removed selectively via
// RemoveUnresolved().
DCHECK(!already_resolved_);
DCHECK_EQ(factory->zone(), zone());
VariableProxy* proxy = factory->NewVariableProxy(name, kind, start_position);
proxy->set_next_unresolved(unresolved_);
unresolved_ = proxy;
return proxy;
}
void Scope::AddUnresolved(VariableProxy* proxy) {
DCHECK(!already_resolved_);
DCHECK(!proxy->is_resolved());

15
src/ast/scopes.h
View File

@ -5,6 +5,7 @@
#ifndef V8_AST_SCOPES_H_
#define V8_AST_SCOPES_H_
#include "src/ast/ast.h"
#include "src/base/compiler-specific.h"
#include "src/base/hashmap.h"
#include "src/globals.h"
@ -208,8 +209,18 @@ class V8_EXPORT_PRIVATE Scope : public NON_EXPORTED_BASE(ZoneObject) {
// Create a new unresolved variable.
VariableProxy* NewUnresolved(AstNodeFactory* factory,
const AstRawString* name,
int start_position = kNoSourcePosition,
VariableKind kind = NORMAL_VARIABLE);
int start_pos = kNoSourcePosition,
VariableKind kind = NORMAL_VARIABLE) {
// Note that we must not share the unresolved variables with
// the same name because they may be removed selectively via
// RemoveUnresolved().
DCHECK(!already_resolved_);
DCHECK_EQ(factory->zone(), zone());
VariableProxy* proxy = factory->NewVariableProxy(name, kind, start_pos);
proxy->set_next_unresolved(unresolved_);
unresolved_ = proxy;
return proxy;
}
void AddUnresolved(VariableProxy* proxy);

20
src/ast/variables.cc
View File

@ -14,26 +14,6 @@ namespace internal {
// ----------------------------------------------------------------------------
// Implementation Variable.
Variable::Variable(Scope* scope, const AstRawString* name, VariableMode mode,
VariableKind kind, InitializationFlag initialization_flag,
MaybeAssignedFlag maybe_assigned_flag)
: scope_(scope),
name_(name),
local_if_not_shadowed_(nullptr),
next_(nullptr),
index_(-1),
initializer_position_(kNoSourcePosition),
bit_field_(MaybeAssignedFlagField::encode(maybe_assigned_flag) |
InitializationFlagField::encode(initialization_flag) |
VariableModeField::encode(mode) | IsUsedField::encode(false) |
ForceContextAllocationField::encode(false) |
ForceHoleInitializationField::encode(false) |
LocationField::encode(VariableLocation::UNALLOCATED) |
VariableKindField::encode(kind)) {
// Var declared variables never need initialization.
DCHECK(!(mode == VAR && initialization_flag == kNeedsInitialization));
}
Variable::Variable(Variable* other)
: scope_(other->scope_),
name_(other->name_),

19
src/ast/variables.h
View File

@ -20,7 +20,24 @@ class Variable final : public ZoneObject {
public:
Variable(Scope* scope, const AstRawString* name, VariableMode mode,
VariableKind kind, InitializationFlag initialization_flag,
MaybeAssignedFlag maybe_assigned_flag = kNotAssigned);
MaybeAssignedFlag maybe_assigned_flag = kNotAssigned)
: scope_(scope),
name_(name),
local_if_not_shadowed_(nullptr),
next_(nullptr),
index_(-1),
initializer_position_(kNoSourcePosition),
bit_field_(MaybeAssignedFlagField::encode(maybe_assigned_flag) |
InitializationFlagField::encode(initialization_flag) |
VariableModeField::encode(mode) |
IsUsedField::encode(false) |
ForceContextAllocationField::encode(false) |
ForceHoleInitializationField::encode(false) |
LocationField::encode(VariableLocation::UNALLOCATED) |
VariableKindField::encode(kind)) {
// Var declared variables never need initialization.
DCHECK(!(mode == VAR && initialization_flag == kNeedsInitialization));
}
explicit Variable(Variable* other);

3
src/heap/heap-inl.h
View File

@ -294,6 +294,9 @@ AllocationResult Heap::CopyFixedDoubleArray(FixedDoubleArray* src) {
return CopyFixedDoubleArrayWithMap(src, src->map());
}
AllocationResult Heap::AllocateFixedArray(int length, PretenureFlag pretenure) {
return AllocateFixedArrayWithFiller(length, pretenure, undefined_value());
}
AllocationResult Heap::AllocateRaw(int size_in_bytes, AllocationSpace space,
AllocationAlignment alignment) {

5
src/heap/heap.cc
View File

@ -4028,11 +4028,6 @@ AllocationResult Heap::AllocateFixedArrayWithFiller(int length,
}
AllocationResult Heap::AllocateFixedArray(int length, PretenureFlag pretenure) {
return AllocateFixedArrayWithFiller(length, pretenure, undefined_value());
}
AllocationResult Heap::AllocateUninitializedFixedArray(int length) {
if (length == 0) return empty_fixed_array();

4
src/heap/heap.h
View File

@ -2006,8 +2006,8 @@ class Heap {
CopyBytecodeArray(BytecodeArray* bytecode_array);
// Allocates a fixed array initialized with undefined values
MUST_USE_RESULT AllocationResult
AllocateFixedArray(int length, PretenureFlag pretenure = NOT_TENURED);
MUST_USE_RESULT inline AllocationResult AllocateFixedArray(
int length, PretenureFlag pretenure = NOT_TENURED);
MUST_USE_RESULT AllocationResult AllocateSmallOrderedHashSet(
int length, PretenureFlag pretenure = NOT_TENURED);

198
src/heap/objects-visiting-inl.h
View File

@ -15,6 +15,204 @@
namespace v8 {
namespace internal {
VisitorId StaticVisitorBase::GetVisitorId(Map* map) {
return GetVisitorId(map->instance_type(), map->instance_size(),
FLAG_unbox_double_fields && !map->HasFastPointerLayout());
}
VisitorId StaticVisitorBase::GetVisitorId(int instance_type, int instance_size,
bool has_unboxed_fields) {
if (instance_type < FIRST_NONSTRING_TYPE) {
switch (instance_type & kStringRepresentationMask) {
case kSeqStringTag:
if ((instance_type & kStringEncodingMask) == kOneByteStringTag) {
return kVisitSeqOneByteString;
} else {
return kVisitSeqTwoByteString;
}
case kConsStringTag:
if (IsShortcutCandidate(instance_type)) {
return kVisitShortcutCandidate;
} else {
return kVisitConsString;
}
case kSlicedStringTag:
return kVisitSlicedString;
case kExternalStringTag:
return kVisitDataObject;
case kThinStringTag:
return kVisitThinString;
}
UNREACHABLE();
}
switch (instance_type) {
case BYTE_ARRAY_TYPE:
return kVisitByteArray;
case BYTECODE_ARRAY_TYPE:
return kVisitBytecodeArray;
case FREE_SPACE_TYPE:
return kVisitFreeSpace;
case FIXED_ARRAY_TYPE:
return kVisitFixedArray;
case FIXED_DOUBLE_ARRAY_TYPE:
return kVisitFixedDoubleArray;
case ODDBALL_TYPE:
return kVisitOddball;
case MAP_TYPE:
return kVisitMap;
case CODE_TYPE:
return kVisitCode;
case CELL_TYPE:
return kVisitCell;
case PROPERTY_CELL_TYPE:
return kVisitPropertyCell;
case WEAK_CELL_TYPE:
return kVisitWeakCell;
case TRANSITION_ARRAY_TYPE:
return kVisitTransitionArray;
case JS_WEAK_MAP_TYPE:
case JS_WEAK_SET_TYPE:
return kVisitJSWeakCollection;
case JS_REGEXP_TYPE:
return kVisitJSRegExp;
case SHARED_FUNCTION_INFO_TYPE:
return kVisitSharedFunctionInfo;
case JS_PROXY_TYPE:
return kVisitStruct;
case SYMBOL_TYPE:
return kVisitSymbol;
case JS_ARRAY_BUFFER_TYPE:
return kVisitJSArrayBuffer;
case SMALL_ORDERED_HASH_MAP_TYPE:
return kVisitSmallOrderedHashMap;
case SMALL_ORDERED_HASH_SET_TYPE:
return kVisitSmallOrderedHashSet;
case JS_OBJECT_TYPE:
case JS_ERROR_TYPE:
case JS_ARGUMENTS_TYPE:
case JS_ASYNC_FROM_SYNC_ITERATOR_TYPE:
case JS_CONTEXT_EXTENSION_OBJECT_TYPE:
case JS_GENERATOR_OBJECT_TYPE:
case JS_ASYNC_GENERATOR_OBJECT_TYPE:
case JS_MODULE_NAMESPACE_TYPE:
case JS_VALUE_TYPE:
case JS_DATE_TYPE:
case JS_ARRAY_TYPE:
case JS_GLOBAL_PROXY_TYPE:
case JS_GLOBAL_OBJECT_TYPE:
case JS_MESSAGE_OBJECT_TYPE:
case JS_TYPED_ARRAY_TYPE:
case JS_DATA_VIEW_TYPE:
case JS_SET_TYPE:
case JS_MAP_TYPE:
case JS_SET_ITERATOR_TYPE:
case JS_MAP_ITERATOR_TYPE:
case JS_STRING_ITERATOR_TYPE:
case JS_TYPED_ARRAY_KEY_ITERATOR_TYPE:
case JS_FAST_ARRAY_KEY_ITERATOR_TYPE:
case JS_GENERIC_ARRAY_KEY_ITERATOR_TYPE:
case JS_UINT8_ARRAY_KEY_VALUE_ITERATOR_TYPE:
case JS_INT8_ARRAY_KEY_VALUE_ITERATOR_TYPE:
case JS_UINT16_ARRAY_KEY_VALUE_ITERATOR_TYPE:
case JS_INT16_ARRAY_KEY_VALUE_ITERATOR_TYPE:
case JS_UINT32_ARRAY_KEY_VALUE_ITERATOR_TYPE:
case JS_INT32_ARRAY_KEY_VALUE_ITERATOR_TYPE:
case JS_FLOAT32_ARRAY_KEY_VALUE_ITERATOR_TYPE:
case JS_FLOAT64_ARRAY_KEY_VALUE_ITERATOR_TYPE:
case JS_UINT8_CLAMPED_ARRAY_KEY_VALUE_ITERATOR_TYPE:
case JS_FAST_SMI_ARRAY_KEY_VALUE_ITERATOR_TYPE:
case JS_FAST_HOLEY_SMI_ARRAY_KEY_VALUE_ITERATOR_TYPE:
case JS_FAST_ARRAY_KEY_VALUE_ITERATOR_TYPE:
case JS_FAST_HOLEY_ARRAY_KEY_VALUE_ITERATOR_TYPE:
case JS_FAST_DOUBLE_ARRAY_KEY_VALUE_ITERATOR_TYPE:
case JS_FAST_HOLEY_DOUBLE_ARRAY_KEY_VALUE_ITERATOR_TYPE:
case JS_GENERIC_ARRAY_KEY_VALUE_ITERATOR_TYPE:
case JS_UINT8_ARRAY_VALUE_ITERATOR_TYPE:
case JS_INT8_ARRAY_VALUE_ITERATOR_TYPE:
case JS_UINT16_ARRAY_VALUE_ITERATOR_TYPE:
case JS_INT16_ARRAY_VALUE_ITERATOR_TYPE:
case JS_UINT32_ARRAY_VALUE_ITERATOR_TYPE:
case JS_INT32_ARRAY_VALUE_ITERATOR_TYPE:
case JS_FLOAT32_ARRAY_VALUE_ITERATOR_TYPE:
case JS_FLOAT64_ARRAY_VALUE_ITERATOR_TYPE:
case JS_UINT8_CLAMPED_ARRAY_VALUE_ITERATOR_TYPE:
case JS_FAST_SMI_ARRAY_VALUE_ITERATOR_TYPE:
case JS_FAST_HOLEY_SMI_ARRAY_VALUE_ITERATOR_TYPE:
case JS_FAST_ARRAY_VALUE_ITERATOR_TYPE:
case JS_FAST_HOLEY_ARRAY_VALUE_ITERATOR_TYPE:
case JS_FAST_DOUBLE_ARRAY_VALUE_ITERATOR_TYPE:
case JS_FAST_HOLEY_DOUBLE_ARRAY_VALUE_ITERATOR_TYPE:
case JS_GENERIC_ARRAY_VALUE_ITERATOR_TYPE:
case JS_PROMISE_CAPABILITY_TYPE:
case JS_PROMISE_TYPE:
case JS_BOUND_FUNCTION_TYPE:
return has_unboxed_fields ? kVisitJSObject : kVisitJSObjectFast;
case JS_API_OBJECT_TYPE:
case JS_SPECIAL_API_OBJECT_TYPE:
return kVisitJSApiObject;
case JS_FUNCTION_TYPE:
return kVisitJSFunction;
case FILLER_TYPE:
case FOREIGN_TYPE:
case HEAP_NUMBER_TYPE:
case MUTABLE_HEAP_NUMBER_TYPE:
return kVisitDataObject;
case FIXED_UINT8_ARRAY_TYPE:
case FIXED_INT8_ARRAY_TYPE:
case FIXED_UINT16_ARRAY_TYPE:
case FIXED_INT16_ARRAY_TYPE:
case FIXED_UINT32_ARRAY_TYPE:
case FIXED_INT32_ARRAY_TYPE:
case FIXED_FLOAT32_ARRAY_TYPE:
case FIXED_UINT8_CLAMPED_ARRAY_TYPE:
return kVisitFixedTypedArrayBase;
case FIXED_FLOAT64_ARRAY_TYPE:
return kVisitFixedFloat64Array;
#define MAKE_STRUCT_CASE(NAME, Name, name) case NAME##_TYPE:
STRUCT_LIST(MAKE_STRUCT_CASE)
#undef MAKE_STRUCT_CASE
if (instance_type == ALLOCATION_SITE_TYPE) {
return kVisitAllocationSite;
}
return kVisitStruct;
default:
UNREACHABLE();
}
}
template <typename Callback>
Callback VisitorDispatchTable<Callback>::GetVisitor(Map* map) {

199
src/heap/objects-visiting.cc
View File

@ -11,205 +11,6 @@
namespace v8 {
namespace internal {
VisitorId StaticVisitorBase::GetVisitorId(Map* map) {
return GetVisitorId(map->instance_type(), map->instance_size(),
FLAG_unbox_double_fields && !map->HasFastPointerLayout());
}
VisitorId StaticVisitorBase::GetVisitorId(int instance_type, int instance_size,
bool has_unboxed_fields) {
if (instance_type < FIRST_NONSTRING_TYPE) {
switch (instance_type & kStringRepresentationMask) {
case kSeqStringTag:
if ((instance_type & kStringEncodingMask) == kOneByteStringTag) {
return kVisitSeqOneByteString;
} else {
return kVisitSeqTwoByteString;
}
case kConsStringTag:
if (IsShortcutCandidate(instance_type)) {
return kVisitShortcutCandidate;
} else {
return kVisitConsString;
}
case kSlicedStringTag:
return kVisitSlicedString;
case kExternalStringTag:
return kVisitDataObject;
case kThinStringTag:
return kVisitThinString;
}
UNREACHABLE();
}
switch (instance_type) {
case BYTE_ARRAY_TYPE:
return kVisitByteArray;
case BYTECODE_ARRAY_TYPE:
return kVisitBytecodeArray;
case FREE_SPACE_TYPE:
return kVisitFreeSpace;
case FIXED_ARRAY_TYPE:
return kVisitFixedArray;
case FIXED_DOUBLE_ARRAY_TYPE:
return kVisitFixedDoubleArray;
case ODDBALL_TYPE:
return kVisitOddball;
case MAP_TYPE:
return kVisitMap;
case CODE_TYPE:
return kVisitCode;
case CELL_TYPE:
return kVisitCell;
case PROPERTY_CELL_TYPE:
return kVisitPropertyCell;
case WEAK_CELL_TYPE:
return kVisitWeakCell;
case TRANSITION_ARRAY_TYPE:
return kVisitTransitionArray;
case JS_WEAK_MAP_TYPE:
case JS_WEAK_SET_TYPE:
return kVisitJSWeakCollection;
case JS_REGEXP_TYPE:
return kVisitJSRegExp;
case SHARED_FUNCTION_INFO_TYPE:
return kVisitSharedFunctionInfo;
case JS_PROXY_TYPE:
return kVisitStruct;
case SYMBOL_TYPE:
return kVisitSymbol;
case JS_ARRAY_BUFFER_TYPE:
return kVisitJSArrayBuffer;
case SMALL_ORDERED_HASH_MAP_TYPE:
return kVisitSmallOrderedHashMap;
case SMALL_ORDERED_HASH_SET_TYPE:
return kVisitSmallOrderedHashSet;
case JS_OBJECT_TYPE:
case JS_ERROR_TYPE:
case JS_ARGUMENTS_TYPE:
case JS_ASYNC_FROM_SYNC_ITERATOR_TYPE:
case JS_CONTEXT_EXTENSION_OBJECT_TYPE:
case JS_GENERATOR_OBJECT_TYPE:
case JS_ASYNC_GENERATOR_OBJECT_TYPE:
case JS_MODULE_NAMESPACE_TYPE:
case JS_VALUE_TYPE:
case JS_DATE_TYPE:
case JS_ARRAY_TYPE:
case JS_GLOBAL_PROXY_TYPE:
case JS_GLOBAL_OBJECT_TYPE:
case JS_MESSAGE_OBJECT_TYPE:
case JS_TYPED_ARRAY_TYPE:
case JS_DATA_VIEW_TYPE:
case JS_SET_TYPE:
case JS_MAP_TYPE:
case JS_SET_ITERATOR_TYPE:
case JS_MAP_ITERATOR_TYPE:
case JS_STRING_ITERATOR_TYPE:
case JS_TYPED_ARRAY_KEY_ITERATOR_TYPE:
case JS_FAST_ARRAY_KEY_ITERATOR_TYPE:
case JS_GENERIC_ARRAY_KEY_ITERATOR_TYPE:
case JS_UINT8_ARRAY_KEY_VALUE_ITERATOR_TYPE:
case JS_INT8_ARRAY_KEY_VALUE_ITERATOR_TYPE:
case JS_UINT16_ARRAY_KEY_VALUE_ITERATOR_TYPE:
case JS_INT16_ARRAY_KEY_VALUE_ITERATOR_TYPE:
case JS_UINT32_ARRAY_KEY_VALUE_ITERATOR_TYPE:
case JS_INT32_ARRAY_KEY_VALUE_ITERATOR_TYPE:
case JS_FLOAT32_ARRAY_KEY_VALUE_ITERATOR_TYPE:
case JS_FLOAT64_ARRAY_KEY_VALUE_ITERATOR_TYPE:
case JS_UINT8_CLAMPED_ARRAY_KEY_VALUE_ITERATOR_TYPE:
case JS_FAST_SMI_ARRAY_KEY_VALUE_ITERATOR_TYPE:
case JS_FAST_HOLEY_SMI_ARRAY_KEY_VALUE_ITERATOR_TYPE:
case JS_FAST_ARRAY_KEY_VALUE_ITERATOR_TYPE:
case JS_FAST_HOLEY_ARRAY_KEY_VALUE_ITERATOR_TYPE:
case JS_FAST_DOUBLE_ARRAY_KEY_VALUE_ITERATOR_TYPE:
case JS_FAST_HOLEY_DOUBLE_ARRAY_KEY_VALUE_ITERATOR_TYPE:
case JS_GENERIC_ARRAY_KEY_VALUE_ITERATOR_TYPE:
case JS_UINT8_ARRAY_VALUE_ITERATOR_TYPE:
case JS_INT8_ARRAY_VALUE_ITERATOR_TYPE:
case JS_UINT16_ARRAY_VALUE_ITERATOR_TYPE:
case JS_INT16_ARRAY_VALUE_ITERATOR_TYPE:
case JS_UINT32_ARRAY_VALUE_ITERATOR_TYPE:
case JS_INT32_ARRAY_VALUE_ITERATOR_TYPE:
case JS_FLOAT32_ARRAY_VALUE_ITERATOR_TYPE:
case JS_FLOAT64_ARRAY_VALUE_ITERATOR_TYPE:
case JS_UINT8_CLAMPED_ARRAY_VALUE_ITERATOR_TYPE:
case JS_FAST_SMI_ARRAY_VALUE_ITERATOR_TYPE:
case JS_FAST_HOLEY_SMI_ARRAY_VALUE_ITERATOR_TYPE:
case JS_FAST_ARRAY_VALUE_ITERATOR_TYPE:
case JS_FAST_HOLEY_ARRAY_VALUE_ITERATOR_TYPE:
case JS_FAST_DOUBLE_ARRAY_VALUE_ITERATOR_TYPE:
case JS_FAST_HOLEY_DOUBLE_ARRAY_VALUE_ITERATOR_TYPE:
case JS_GENERIC_ARRAY_VALUE_ITERATOR_TYPE:
case JS_PROMISE_CAPABILITY_TYPE:
case JS_PROMISE_TYPE:
case JS_BOUND_FUNCTION_TYPE:
return has_unboxed_fields ? kVisitJSObject : kVisitJSObjectFast;
case JS_API_OBJECT_TYPE:
case JS_SPECIAL_API_OBJECT_TYPE:
return kVisitJSApiObject;
case JS_FUNCTION_TYPE:
return kVisitJSFunction;
case FILLER_TYPE:
case FOREIGN_TYPE:
case HEAP_NUMBER_TYPE:
case MUTABLE_HEAP_NUMBER_TYPE:
return kVisitDataObject;
case FIXED_UINT8_ARRAY_TYPE:
case FIXED_INT8_ARRAY_TYPE:
case FIXED_UINT16_ARRAY_TYPE:
case FIXED_INT16_ARRAY_TYPE:
case FIXED_UINT32_ARRAY_TYPE:
case FIXED_INT32_ARRAY_TYPE:
case FIXED_FLOAT32_ARRAY_TYPE:
case FIXED_UINT8_CLAMPED_ARRAY_TYPE:
return kVisitFixedTypedArrayBase;
case FIXED_FLOAT64_ARRAY_TYPE:
return kVisitFixedFloat64Array;
#define MAKE_STRUCT_CASE(NAME, Name, name) case NAME##_TYPE:
STRUCT_LIST(MAKE_STRUCT_CASE)
#undef MAKE_STRUCT_CASE
if (instance_type == ALLOCATION_SITE_TYPE) {
return kVisitAllocationSite;
}
return kVisitStruct;
default:
UNREACHABLE();
}
}
// We don't record weak slots during marking or scavenges. Instead we do it
// once when we complete mark-compact cycle. Note that write barrier has no

4
src/heap/objects-visiting.h
View File

@ -86,11 +86,11 @@ class StaticVisitorBase : public AllStatic {
// Determine which specialized visitor should be used for given instance type
// and instance type.
static VisitorId GetVisitorId(int instance_type, int instance_size,
static inline VisitorId GetVisitorId(int instance_type, int instance_size,
bool has_unboxed_fields);
// Determine which specialized visitor should be used for given map.
static VisitorId GetVisitorId(Map* map);
static inline VisitorId GetVisitorId(Map* map);
};

9
src/heap/scavenger-inl.h
View File

@ -37,6 +37,15 @@ void Scavenger::ScavengeObject(HeapObject** p, HeapObject* object) {
return ScavengeObjectSlow(p, object);
}
void Scavenger::ScavengeObjectSlow(HeapObject** p, HeapObject* object) {
SLOW_DCHECK(object->GetIsolate()->heap()->InFromSpace(object));
MapWord first_word = object->map_word();
SLOW_DCHECK(!first_word.IsForwardingAddress());
Map* map = first_word.ToMap();
Scavenger* scavenger = map->GetHeap()->scavenge_collector_;
scavenger->scavenging_visitors_table_.GetVisitor(map)(map, p, object);
}
SlotCallbackResult Scavenger::CheckAndScavengeObject(Heap* heap,
Address slot_address) {
Object** slot = reinterpret_cast<Object**>(slot_address);

11
src/heap/scavenger.cc
View File

@ -404,17 +404,6 @@ void Scavenger::Initialize() {
}
// static
void Scavenger::ScavengeObjectSlow(HeapObject** p, HeapObject* object) {
SLOW_DCHECK(object->GetIsolate()->heap()->InFromSpace(object));
MapWord first_word = object->map_word();
SLOW_DCHECK(!first_word.IsForwardingAddress());
Map* map = first_word.ToMap();
Scavenger* scavenger = map->GetHeap()->scavenge_collector_;
scavenger->scavenging_visitors_table_.GetVisitor(map)(map, p, object);
}
void Scavenger::SelectScavengingVisitorsTable() {
bool logging_and_profiling =
FLAG_verify_predictable || isolate()->logger()->is_logging() ||

2
src/heap/scavenger.h
View File

@ -30,7 +30,7 @@ class Scavenger {
Address slot_address);
// Slow part of {ScavengeObject} above.
static void ScavengeObjectSlow(HeapObject** p, HeapObject* object);
static inline void ScavengeObjectSlow(HeapObject** p, HeapObject* object);
// Chooses an appropriate static visitor table depending on the current state
// of the heap (i.e. incremental marking, logging and profiling).

37
src/interpreter/bytecodes.cc
View File

@ -55,6 +55,18 @@ const OperandSize* const Bytecodes::kOperandSizes[][3] = {
BYTECODE_LIST(ENTRY)
#undef ENTRY
};
const OperandSize Bytecodes::kOperandKindSizes[][3] = {
#define ENTRY(Name, ...) \
{ OperandScaler<OperandType::k##Name, \
OperandScale::kSingle>::kOperandSize, \
OperandScaler<OperandType::k##Name, \
OperandScale::kDouble>::kOperandSize, \
OperandScaler<OperandType::k##Name, \
OperandScale::kQuadruple>::kOperandSize },
OPERAND_TYPE_LIST(ENTRY)
#undef ENTRY
};
// clang-format on
// static
@ -274,31 +286,6 @@ bool Bytecodes::IsUnsignedOperandType(OperandType operand_type) {
UNREACHABLE();
}
// static
OperandSize Bytecodes::SizeOfOperand(OperandType operand_type,
OperandScale operand_scale) {
DCHECK_LE(operand_type, OperandType::kLast);
DCHECK_GE(operand_scale, OperandScale::kSingle);
DCHECK_LE(operand_scale, OperandScale::kLast);
STATIC_ASSERT(static_cast<int>(OperandScale::kQuadruple) == 4 &&
OperandScale::kLast == OperandScale::kQuadruple);
int scale_index = static_cast<int>(operand_scale) >> 1;
// clang-format off
static const OperandSize kOperandSizes[][3] = {
#define ENTRY(Name, ...) \
{ OperandScaler<OperandType::k##Name, \
OperandScale::kSingle>::kOperandSize, \
OperandScaler<OperandType::k##Name, \
OperandScale::kDouble>::kOperandSize, \
OperandScaler<OperandType::k##Name, \
OperandScale::kQuadruple>::kOperandSize },
OPERAND_TYPE_LIST(ENTRY)
#undef ENTRY
};
// clang-format on
return kOperandSizes[static_cast<size_t>(operand_type)][scale_index];
}
// static
bool Bytecodes::BytecodeHasHandler(Bytecode bytecode,
OperandScale operand_scale) {

14
src/interpreter/bytecodes.h
View File

@ -872,8 +872,17 @@ class V8_EXPORT_PRIVATE Bytecodes final {
UNREACHABLE();
}
// Returns the size of |operand| for |operand_scale|.
static OperandSize SizeOfOperand(OperandType operand, OperandScale scale);
// Returns the size of |operand_type| for |operand_scale|.
static OperandSize SizeOfOperand(OperandType operand_type,
OperandScale operand_scale) {
DCHECK_LE(operand_type, OperandType::kLast);
DCHECK_GE(operand_scale, OperandScale::kSingle);
DCHECK_LE(operand_scale, OperandScale::kLast);
STATIC_ASSERT(static_cast<int>(OperandScale::kQuadruple) == 4 &&
OperandScale::kLast == OperandScale::kQuadruple);
int scale_index = static_cast<int>(operand_scale) >> 1;
return kOperandKindSizes[static_cast<size_t>(operand_type)][scale_index];
}
// Returns true if |operand_type| is a runtime-id operand (kRuntimeId).
static bool IsRuntimeIdOperandType(OperandType operand_type);
@ -929,6 +938,7 @@ class V8_EXPORT_PRIVATE Bytecodes final {
static const bool kIsScalable[];
static const int kBytecodeSizes[][3];
static const OperandSize* const kOperandSizes[][3];
static OperandSize const kOperandKindSizes[][3];
};
V8_EXPORT_PRIVATE std::ostream& operator<<(std::ostream& os,

7
src/parsing/scanner.cc
View File

@ -1178,13 +1178,6 @@ Token::Value Scanner::ScanTemplateStart() {
return ScanTemplateSpan();
}
Token::Value Scanner::ScanTemplateContinuation() {
DCHECK_EQ(next_.token, Token::RBRACE);
next_.location.beg_pos = source_pos() - 1; // We already consumed }
return ScanTemplateSpan();
}
Handle<String> Scanner::SourceUrl(Isolate* isolate) const {
Handle<String> tmp;
if (source_url_.length() > 0) tmp = source_url_.Internalize(isolate);

6
src/parsing/scanner.h
View File

@ -342,7 +342,11 @@ class Scanner {
// Scans the input as a template literal
Token::Value ScanTemplateStart();
Token::Value ScanTemplateContinuation();
Token::Value ScanTemplateContinuation() {
DCHECK_EQ(next_.token, Token::RBRACE);
next_.location.beg_pos = source_pos() - 1; // We already consumed }
return ScanTemplateSpan();
}
Handle<String> SourceUrl(Isolate* isolate) const;
Handle<String> SourceMappingUrl(Isolate* isolate) const;

6
src/snapshot/snapshot-source-sink.cc
View File

@ -12,12 +12,6 @@
namespace v8 {
namespace internal {
void SnapshotByteSource::CopyRaw(byte* to, int number_of_bytes) {
memcpy(to, data_ + position_, number_of_bytes);
position_ += number_of_bytes;
}
void SnapshotByteSink::PutInt(uintptr_t integer, const char* description) {
DCHECK(integer < 1 << 30);
integer <<= 2;

5
src/snapshot/snapshot-source-sink.h
View File

@ -38,7 +38,10 @@ class SnapshotByteSource final {
void Advance(int by) { position_ += by; }
void CopyRaw(byte* to, int number_of_bytes);
void CopyRaw(byte* to, int number_of_bytes) {
memcpy(to, data_ + position_, number_of_bytes);
position_ += number_of_bytes;
}
inline int GetInt() {
// This way of decoding variable-length encoded integers does not