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
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
|
// 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.
#include "src/compiler/js-heap-copy-reducer.h"
#include "src/compiler/common-operator.h"
#include "src/compiler/js-heap-broker.h"
#include "src/compiler/js-operator.h"
#include "src/compiler/node-properties.h"
#include "src/heap/factory-inl.h"
#include "src/objects/map.h"
#include "src/objects/scope-info.h"
namespace v8 {
namespace internal {
namespace compiler {
// In the functions below, we call the ObjectRef (or subclass) constructor in
// order to trigger serialization if not yet done.
JSHeapCopyReducer::JSHeapCopyReducer(JSHeapBroker* broker) : broker_(broker) {}
JSHeapBroker* JSHeapCopyReducer::broker() { return broker_; }
Reduction JSHeapCopyReducer::Reduce(Node* node) {
switch (node->opcode()) {
case IrOpcode::kHeapConstant: {
ObjectRef object(broker(), HeapConstantOf(node->op()));
if (object.IsJSFunction()) object.AsJSFunction().Serialize();
if (object.IsJSObject()) object.AsJSObject().SerializeObjectCreateMap();
if (object.IsModule()) object.AsModule().Serialize();
if (object.IsContext()) object.AsContext().Serialize();
break;
}
case IrOpcode::kJSCreateArray: {
CreateArrayParameters const& p = CreateArrayParametersOf(node->op());
Handle<AllocationSite> site;
if (p.site().ToHandle(&site)) AllocationSiteRef(broker(), site);
break;
}
case IrOpcode::kJSCreateArguments: {
Node* const frame_state = NodeProperties::GetFrameStateInput(node);
FrameStateInfo state_info = FrameStateInfoOf(frame_state->op());
SharedFunctionInfoRef shared(broker(),
state_info.shared_info().ToHandleChecked());
break;
}
case IrOpcode::kJSCreateBlockContext: {
ScopeInfoRef(broker(), ScopeInfoOf(node->op()));
break;
}
case IrOpcode::kJSCreateBoundFunction: {
CreateBoundFunctionParameters const& p =
CreateBoundFunctionParametersOf(node->op());
MapRef(broker(), p.map());
break;
}
case IrOpcode::kJSCreateCatchContext: {
ScopeInfoRef(broker(), ScopeInfoOf(node->op()));
break;
}
case IrOpcode::kJSCreateClosure: {
CreateClosureParameters const& p = CreateClosureParametersOf(node->op());
SharedFunctionInfoRef(broker(), p.shared_info());
HeapObjectRef(broker(), p.feedback_cell());
HeapObjectRef(broker(), p.code());
break;
}
case IrOpcode::kJSCreateEmptyLiteralArray: {
FeedbackParameter const& p = FeedbackParameterOf(node->op());
FeedbackVectorRef(broker(), p.feedback().vector()).SerializeSlots();
break;
}
case IrOpcode::kJSCreateFunctionContext: {
CreateFunctionContextParameters const& p =
CreateFunctionContextParametersOf(node->op());
ScopeInfoRef(broker(), p.scope_info());
break;
}
case IrOpcode::kJSCreateLiteralArray:
case IrOpcode::kJSCreateLiteralObject: {
CreateLiteralParameters const& p = CreateLiteralParametersOf(node->op());
FeedbackVectorRef(broker(), p.feedback().vector()).SerializeSlots();
break;
}
case IrOpcode::kJSCreateLiteralRegExp: {
CreateLiteralParameters const& p = CreateLiteralParametersOf(node->op());
FeedbackVectorRef(broker(), p.feedback().vector()).SerializeSlots();
break;
}
case IrOpcode::kJSCreateWithContext: {
ScopeInfoRef(broker(), ScopeInfoOf(node->op()));
break;
}
case IrOpcode::kJSLoadNamed:
case IrOpcode::kJSStoreNamed: {
NamedAccess const& p = NamedAccessOf(node->op());
NameRef(broker(), p.name());
break;
}
default:
break;
}
return NoChange();
}
} // namespace compiler
} // namespace internal
} // namespace v8
|
