1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
|
// Copyright 2018 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef V8_COMPILER_ALLOCATION_BUILDER_INL_H_
#define V8_COMPILER_ALLOCATION_BUILDER_INL_H_
#include "src/compiler/access-builder.h"
#include "src/compiler/allocation-builder.h"
#include "src/objects/map-inl.h"
#include "torque-generated/exported-class-definitions-tq-inl.h"
#include "torque-generated/exported-class-definitions-tq.h"
namespace v8 {
namespace internal {
namespace compiler {
void AllocationBuilder::AllocateContext(int variadic_part_length, MapRef map) {
DCHECK(base::IsInRange(map.instance_type(), FIRST_CONTEXT_TYPE,
LAST_CONTEXT_TYPE));
DCHECK_NE(NATIVE_CONTEXT_TYPE, map.instance_type());
int size = Context::SizeFor(variadic_part_length);
Allocate(size, AllocationType::kYoung, Type::OtherInternal());
Store(AccessBuilder::ForMap(), map);
STATIC_ASSERT(static_cast<int>(Context::kLengthOffset) ==
static_cast<int>(FixedArray::kLengthOffset));
Store(AccessBuilder::ForFixedArrayLength(),
jsgraph()->Constant(variadic_part_length));
}
// Compound allocation of a FixedArray.
void AllocationBuilder::AllocateArray(int length, MapRef map,
AllocationType allocation) {
DCHECK(map.instance_type() == FIXED_ARRAY_TYPE ||
map.instance_type() == FIXED_DOUBLE_ARRAY_TYPE);
int size = (map.instance_type() == FIXED_ARRAY_TYPE)
? FixedArray::SizeFor(length)
: FixedDoubleArray::SizeFor(length);
Allocate(size, allocation, Type::OtherInternal());
Store(AccessBuilder::ForMap(), map);
Store(AccessBuilder::ForFixedArrayLength(), jsgraph()->Constant(length));
}
void AllocationBuilder::AllocateSloppyArgumentElements(
int length, MapRef map, AllocationType allocation) {
int size = SloppyArgumentsElements::SizeFor(length);
Allocate(size, allocation, Type::OtherInternal());
Store(AccessBuilder::ForMap(), map);
Store(AccessBuilder::ForFixedArrayLength(), jsgraph()->Constant(length));
}
} // namespace compiler
} // namespace internal
} // namespace v8
#endif // V8_COMPILER_ALLOCATION_BUILDER_INL_H_
|
