Version 3.7.8.
Removed hidden prototype from builtins, i.e., deleting an overridden function on builtins will not make the original function reappear.
Added NetBSD support for scons build.
Performance improvements on all platforms.
git-svn-id: http://v8.googlecode.com/svn/trunk@10011 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
diff --git a/src/heap.cc b/src/heap.cc
index bdc8ab3..cbf0cb3 100644
--- a/src/heap.cc
+++ b/src/heap.cc
@@ -1765,18 +1765,18 @@
}
Map* map = reinterpret_cast<Map*>(result);
- map->set_map(meta_map());
+ map->set_map_unsafe(meta_map());
map->set_instance_type(instance_type);
map->set_visitor_id(
StaticVisitorBase::GetVisitorId(instance_type, instance_size));
- map->set_prototype(null_value());
- map->set_constructor(null_value());
+ map->set_prototype(null_value(), SKIP_WRITE_BARRIER);
+ map->set_constructor(null_value(), SKIP_WRITE_BARRIER);
map->set_instance_size(instance_size);
map->set_inobject_properties(0);
map->set_pre_allocated_property_fields(0);
map->init_instance_descriptors();
- map->set_code_cache(empty_fixed_array());
- map->set_prototype_transitions(empty_fixed_array());
+ map->set_code_cache(empty_fixed_array(), SKIP_WRITE_BARRIER);
+ map->set_prototype_transitions(empty_fixed_array(), SKIP_WRITE_BARRIER);
map->set_unused_property_fields(0);
map->set_bit_field(0);
map->set_bit_field2(1 << Map::kIsExtensible);
@@ -1798,8 +1798,8 @@
if (!maybe_result->ToObject(&result)) return maybe_result;
}
CodeCache* code_cache = CodeCache::cast(result);
- code_cache->set_default_cache(empty_fixed_array());
- code_cache->set_normal_type_cache(undefined_value());
+ code_cache->set_default_cache(empty_fixed_array(), SKIP_WRITE_BARRIER);
+ code_cache->set_normal_type_cache(undefined_value(), SKIP_WRITE_BARRIER);
return code_cache;
}
@@ -2125,7 +2125,7 @@
if (!maybe_result->ToObject(&result)) return maybe_result;
}
- HeapObject::cast(result)->set_map(heap_number_map());
+ HeapObject::cast(result)->set_map_unsafe(heap_number_map());
HeapNumber::cast(result)->set_value(value);
return result;
}
@@ -2143,7 +2143,7 @@
{ MaybeObject* maybe_result = new_space_.AllocateRaw(HeapNumber::kSize);
if (!maybe_result->ToObject(&result)) return maybe_result;
}
- HeapObject::cast(result)->set_map(heap_number_map());
+ HeapObject::cast(result)->set_map_unsafe(heap_number_map());
HeapNumber::cast(result)->set_value(value);
return result;
}
@@ -2154,7 +2154,7 @@
{ MaybeObject* maybe_result = AllocateRawCell();
if (!maybe_result->ToObject(&result)) return maybe_result;
}
- HeapObject::cast(result)->set_map(global_property_cell_map());
+ HeapObject::cast(result)->set_map_unsafe(global_property_cell_map());
JSGlobalPropertyCell::cast(result)->set_value(value);
return result;
}
@@ -2693,12 +2693,12 @@
isolate_->builtins()->builtin(Builtins::kJSConstructStubGeneric);
share->set_construct_stub(construct_stub);
share->set_instance_class_name(Object_symbol());
- share->set_function_data(undefined_value());
- share->set_script(undefined_value());
- share->set_debug_info(undefined_value());
- share->set_inferred_name(empty_string());
- share->set_initial_map(undefined_value());
- share->set_this_property_assignments(undefined_value());
+ share->set_function_data(undefined_value(), SKIP_WRITE_BARRIER);
+ share->set_script(undefined_value(), SKIP_WRITE_BARRIER);
+ share->set_debug_info(undefined_value(), SKIP_WRITE_BARRIER);
+ share->set_inferred_name(empty_string(), SKIP_WRITE_BARRIER);
+ share->set_initial_map(undefined_value(), SKIP_WRITE_BARRIER);
+ share->set_this_property_assignments(undefined_value(), SKIP_WRITE_BARRIER);
share->set_deopt_counter(Smi::FromInt(FLAG_deopt_every_n_times));
// Set integer fields (smi or int, depending on the architecture).
@@ -2730,8 +2730,8 @@
if (!maybe_result->ToObject(&result)) return maybe_result;
}
JSMessageObject* message = JSMessageObject::cast(result);
- message->set_properties(Heap::empty_fixed_array());
- message->set_elements(Heap::empty_fixed_array());
+ message->set_properties(Heap::empty_fixed_array(), SKIP_WRITE_BARRIER);
+ message->set_elements(Heap::empty_fixed_array(), SKIP_WRITE_BARRIER);
message->set_type(type);
message->set_arguments(arguments);
message->set_start_position(start_position);
@@ -3091,7 +3091,7 @@
if (!maybe_result->ToObject(&result)) return maybe_result;
}
- reinterpret_cast<ByteArray*>(result)->set_map(byte_array_map());
+ reinterpret_cast<ByteArray*>(result)->set_map_unsafe(byte_array_map());
reinterpret_cast<ByteArray*>(result)->set_length(length);
return result;
}
@@ -3109,7 +3109,7 @@
if (!maybe_result->ToObject(&result)) return maybe_result;
}
- reinterpret_cast<ByteArray*>(result)->set_map(byte_array_map());
+ reinterpret_cast<ByteArray*>(result)->set_map_unsafe(byte_array_map());
reinterpret_cast<ByteArray*>(result)->set_length(length);
return result;
}
@@ -3119,11 +3119,11 @@
if (size == 0) return;
HeapObject* filler = HeapObject::FromAddress(addr);
if (size == kPointerSize) {
- filler->set_map(one_pointer_filler_map());
+ filler->set_map_unsafe(one_pointer_filler_map());
} else if (size == 2 * kPointerSize) {
- filler->set_map(two_pointer_filler_map());
+ filler->set_map_unsafe(two_pointer_filler_map());
} else {
- filler->set_map(free_space_map());
+ filler->set_map_unsafe(free_space_map());
FreeSpace::cast(filler)->set_size(size);
}
}
@@ -3141,7 +3141,7 @@
if (!maybe_result->ToObject(&result)) return maybe_result;
}
- reinterpret_cast<ExternalArray*>(result)->set_map(
+ reinterpret_cast<ExternalArray*>(result)->set_map_unsafe(
MapForExternalArrayType(array_type));
reinterpret_cast<ExternalArray*>(result)->set_length(length);
reinterpret_cast<ExternalArray*>(result)->set_external_pointer(
@@ -3178,7 +3178,7 @@
if (!maybe_result->ToObject(&result)) return maybe_result;
// Initialize the object
- HeapObject::cast(result)->set_map(code_map());
+ HeapObject::cast(result)->set_map_unsafe(code_map());
Code* code = Code::cast(result);
ASSERT(!isolate_->code_range()->exists() ||
isolate_->code_range()->contains(code->address()));
@@ -3188,8 +3188,8 @@
if (code->is_call_stub() || code->is_keyed_call_stub()) {
code->set_check_type(RECEIVER_MAP_CHECK);
}
- code->set_deoptimization_data(empty_fixed_array());
- code->set_handler_table(empty_fixed_array());
+ code->set_deoptimization_data(empty_fixed_array(), SKIP_WRITE_BARRIER);
+ code->set_handler_table(empty_fixed_array(), SKIP_WRITE_BARRIER);
code->set_next_code_flushing_candidate(undefined_value());
// Allow self references to created code object by patching the handle to
// point to the newly allocated Code object.
@@ -3306,7 +3306,8 @@
AllocateRaw(map->instance_size(), space, retry_space);
if (!maybe_result->ToObject(&result)) return maybe_result;
}
- HeapObject::cast(result)->set_map(map);
+ // No need for write barrier since object is white and map is in old space.
+ HeapObject::cast(result)->set_map_unsafe(map);
return result;
}
@@ -3633,7 +3634,7 @@
if (!maybe_result->To<JSProxy>(&result)) return maybe_result;
result->InitializeBody(map->instance_size(), Smi::FromInt(0));
result->set_handler(handler);
- result->set_hash(undefined_value());
+ result->set_hash(undefined_value(), SKIP_WRITE_BARRIER);
return result;
}
@@ -3657,7 +3658,7 @@
if (!maybe_result->To<JSFunctionProxy>(&result)) return maybe_result;
result->InitializeBody(map->instance_size(), Smi::FromInt(0));
result->set_handler(handler);
- result->set_hash(undefined_value());
+ result->set_hash(undefined_value(), SKIP_WRITE_BARRIER);
result->set_call_trap(call_trap);
result->set_construct_trap(construct_trap);
return result;
@@ -4044,7 +4045,7 @@
if (!maybe_result->ToObject(&result)) return maybe_result;
}
- reinterpret_cast<HeapObject*>(result)->set_map(map);
+ reinterpret_cast<HeapObject*>(result)->set_map_unsafe(map);
// Set length and hash fields of the allocated string.
String* answer = String::cast(result);
answer->set_length(chars);
@@ -4088,7 +4089,7 @@
}
// Partially initialize the object.
- HeapObject::cast(result)->set_map(ascii_string_map());
+ HeapObject::cast(result)->set_map_unsafe(ascii_string_map());
String::cast(result)->set_length(length);
String::cast(result)->set_hash_field(String::kEmptyHashField);
ASSERT_EQ(size, HeapObject::cast(result)->Size());
@@ -4123,7 +4124,7 @@
}
// Partially initialize the object.
- HeapObject::cast(result)->set_map(string_map());
+ HeapObject::cast(result)->set_map_unsafe(string_map());
String::cast(result)->set_length(length);
String::cast(result)->set_hash_field(String::kEmptyHashField);
ASSERT_EQ(size, HeapObject::cast(result)->Size());
@@ -4139,7 +4140,7 @@
if (!maybe_result->ToObject(&result)) return maybe_result;
}
// Initialize the object.
- reinterpret_cast<FixedArray*>(result)->set_map(fixed_array_map());
+ reinterpret_cast<FixedArray*>(result)->set_map_unsafe(fixed_array_map());
reinterpret_cast<FixedArray*>(result)->set_length(0);
return result;
}
@@ -4168,13 +4169,13 @@
}
if (InNewSpace(obj)) {
HeapObject* dst = HeapObject::cast(obj);
- dst->set_map(map);
+ dst->set_map_unsafe(map);
CopyBlock(dst->address() + kPointerSize,
src->address() + kPointerSize,
FixedArray::SizeFor(len) - kPointerSize);
return obj;
}
- HeapObject::cast(obj)->set_map(map);
+ HeapObject::cast(obj)->set_map_unsafe(map);
FixedArray* result = FixedArray::cast(obj);
result->set_length(len);
@@ -4194,7 +4195,7 @@
if (!maybe_obj->ToObject(&obj)) return maybe_obj;
}
HeapObject* dst = HeapObject::cast(obj);
- dst->set_map(map);
+ dst->set_map_unsafe(map);
CopyBlock(
dst->address() + FixedDoubleArray::kLengthOffset,
src->address() + FixedDoubleArray::kLengthOffset,
@@ -4212,7 +4213,7 @@
}
// Initialize header.
FixedArray* array = reinterpret_cast<FixedArray*>(result);
- array->set_map(fixed_array_map());
+ array->set_map_unsafe(fixed_array_map());
array->set_length(length);
// Initialize body.
ASSERT(!InNewSpace(undefined_value()));
@@ -4260,7 +4261,7 @@
if (!maybe_result->ToObject(&result)) return maybe_result;
}
- HeapObject::cast(result)->set_map(heap->fixed_array_map());
+ HeapObject::cast(result)->set_map_unsafe(heap->fixed_array_map());
FixedArray* array = FixedArray::cast(result);
array->set_length(length);
MemsetPointer(array->data_start(), filler, length);
@@ -4293,7 +4294,7 @@
if (!maybe_obj->ToObject(&obj)) return maybe_obj;
}
- reinterpret_cast<FixedArray*>(obj)->set_map(fixed_array_map());
+ reinterpret_cast<FixedArray*>(obj)->set_map_unsafe(fixed_array_map());
FixedArray::cast(obj)->set_length(length);
return obj;
}
@@ -4307,7 +4308,7 @@
if (!maybe_result->ToObject(&result)) return maybe_result;
}
// Initialize the object.
- reinterpret_cast<FixedDoubleArray*>(result)->set_map(
+ reinterpret_cast<FixedDoubleArray*>(result)->set_map_unsafe(
fixed_double_array_map());
reinterpret_cast<FixedDoubleArray*>(result)->set_length(0);
return result;
@@ -4324,7 +4325,8 @@
if (!maybe_obj->ToObject(&obj)) return maybe_obj;
}
- reinterpret_cast<FixedDoubleArray*>(obj)->set_map(fixed_double_array_map());
+ reinterpret_cast<FixedDoubleArray*>(obj)->set_map_unsafe(
+ fixed_double_array_map());
FixedDoubleArray::cast(obj)->set_length(length);
return obj;
}
@@ -4360,7 +4362,7 @@
{ MaybeObject* maybe_result = AllocateFixedArray(length, pretenure);
if (!maybe_result->ToObject(&result)) return maybe_result;
}
- reinterpret_cast<HeapObject*>(result)->set_map(hash_table_map());
+ reinterpret_cast<HeapObject*>(result)->set_map_unsafe(hash_table_map());
ASSERT(result->IsHashTable());
return result;
}
@@ -4373,7 +4375,7 @@
if (!maybe_result->ToObject(&result)) return maybe_result;
}
Context* context = reinterpret_cast<Context*>(result);
- context->set_map(global_context_map());
+ context->set_map_unsafe(global_context_map());
ASSERT(context->IsGlobalContext());
ASSERT(result->IsContext());
return result;
@@ -4387,7 +4389,7 @@
if (!maybe_result->ToObject(&result)) return maybe_result;
}
Context* context = reinterpret_cast<Context*>(result);
- context->set_map(function_context_map());
+ context->set_map_unsafe(function_context_map());
context->set_closure(function);
context->set_previous(function->context());
context->set_extension(NULL);
@@ -4407,7 +4409,7 @@
if (!maybe_result->ToObject(&result)) return maybe_result;
}
Context* context = reinterpret_cast<Context*>(result);
- context->set_map(catch_context_map());
+ context->set_map_unsafe(catch_context_map());
context->set_closure(function);
context->set_previous(previous);
context->set_extension(name);
@@ -4425,7 +4427,7 @@
if (!maybe_result->ToObject(&result)) return maybe_result;
}
Context* context = reinterpret_cast<Context*>(result);
- context->set_map(with_context_map());
+ context->set_map_unsafe(with_context_map());
context->set_closure(function);
context->set_previous(previous);
context->set_extension(extension);
@@ -4443,7 +4445,7 @@
if (!maybe_result->ToObject(&result)) return maybe_result;
}
Context* context = reinterpret_cast<Context*>(result);
- context->set_map(block_context_map());
+ context->set_map_unsafe(block_context_map());
context->set_closure(function);
context->set_previous(previous);
context->set_extension(scope_info);
@@ -4456,7 +4458,7 @@
FixedArray* scope_info;
MaybeObject* maybe_scope_info = AllocateFixedArray(length, TENURED);
if (!maybe_scope_info->To(&scope_info)) return maybe_scope_info;
- scope_info->set_map(scope_info_map());
+ scope_info->set_map_unsafe(scope_info_map());
return scope_info;
}