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
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
|
// Copyright 2014 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_NODE_ORIGIN_TABLE_H_
#define V8_COMPILER_NODE_ORIGIN_TABLE_H_
#include <limits>
#include "src/base/compiler-specific.h"
#include "src/compiler/node-aux-data.h"
namespace v8 {
namespace internal {
namespace compiler {
class NodeOrigin {
public:
enum OriginKind { kWasmBytecode, kGraphNode, kJSBytecode };
NodeOrigin(const char* phase_name, const char* reducer_name,
NodeId created_from)
: phase_name_(phase_name),
reducer_name_(reducer_name),
origin_kind_(kGraphNode),
created_from_(created_from) {}
NodeOrigin(const char* phase_name, const char* reducer_name,
OriginKind origin_kind, uint64_t created_from)
: phase_name_(phase_name),
reducer_name_(reducer_name),
origin_kind_(origin_kind),
created_from_(created_from) {}
NodeOrigin(const NodeOrigin& other) V8_NOEXCEPT = default;
NodeOrigin& operator=(const NodeOrigin& other) V8_NOEXCEPT = default;
static NodeOrigin Unknown() { return NodeOrigin(); }
bool IsKnown() { return created_from_ >= 0; }
int64_t created_from() const { return created_from_; }
const char* reducer_name() const { return reducer_name_; }
const char* phase_name() const { return phase_name_; }
OriginKind origin_kind() const { return origin_kind_; }
bool operator==(const NodeOrigin& o) const {
return reducer_name_ == o.reducer_name_ && created_from_ == o.created_from_;
}
void PrintJson(std::ostream& out) const;
private:
NodeOrigin()
: phase_name_(""),
reducer_name_(""),
created_from_(std::numeric_limits<int64_t>::min()) {}
const char* phase_name_;
const char* reducer_name_;
OriginKind origin_kind_;
int64_t created_from_;
};
inline bool operator!=(const NodeOrigin& lhs, const NodeOrigin& rhs) {
return !(lhs == rhs);
}
class V8_EXPORT_PRIVATE NodeOriginTable final
: public NON_EXPORTED_BASE(ZoneObject) {
public:
class V8_NODISCARD Scope final {
public:
Scope(NodeOriginTable* origins, const char* reducer_name, Node* node)
: origins_(origins), prev_origin_(NodeOrigin::Unknown()) {
if (origins) {
prev_origin_ = origins->current_origin_;
origins->current_origin_ =
NodeOrigin(origins->current_phase_name_, reducer_name, node->id());
}
}
~Scope() {
if (origins_) origins_->current_origin_ = prev_origin_;
}
Scope(const Scope&) = delete;
Scope& operator=(const Scope&) = delete;
private:
NodeOriginTable* const origins_;
NodeOrigin prev_origin_;
};
class V8_NODISCARD PhaseScope final {
public:
PhaseScope(NodeOriginTable* origins, const char* phase_name)
: origins_(origins) {
if (origins != nullptr) {
prev_phase_name_ = origins->current_phase_name_;
origins->current_phase_name_ =
phase_name == nullptr ? "unnamed" : phase_name;
}
}
~PhaseScope() {
if (origins_) origins_->current_phase_name_ = prev_phase_name_;
}
PhaseScope(const PhaseScope&) = delete;
PhaseScope& operator=(const PhaseScope&) = delete;
private:
NodeOriginTable* const origins_;
const char* prev_phase_name_;
};
explicit NodeOriginTable(Graph* graph);
NodeOriginTable(const NodeOriginTable&) = delete;
NodeOriginTable& operator=(const NodeOriginTable&) = delete;
void AddDecorator();
void RemoveDecorator();
NodeOrigin GetNodeOrigin(Node* node) const;
NodeOrigin GetNodeOrigin(NodeId id) const;
void SetNodeOrigin(Node* node, const NodeOrigin& no);
void SetNodeOrigin(NodeId id, NodeId origin);
void SetNodeOrigin(NodeId id, NodeOrigin::OriginKind kind, NodeId origin);
void SetCurrentPosition(const NodeOrigin& no) { current_origin_ = no; }
void SetCurrentBytecodePosition(int offset) {
current_bytecode_position_ = offset;
}
int GetCurrentBytecodePosition() { return current_bytecode_position_; }
void PrintJson(std::ostream& os) const;
private:
class Decorator;
Graph* const graph_;
Decorator* decorator_;
NodeOrigin current_origin_;
int current_bytecode_position_;
const char* current_phase_name_;
static NodeOrigin UnknownNodeOrigin(Zone* zone) {
return NodeOrigin::Unknown();
}
NodeAuxData<NodeOrigin, UnknownNodeOrigin> table_;
};
} // namespace compiler
} // namespace internal
} // namespace v8
#endif // V8_COMPILER_NODE_ORIGIN_TABLE_H_
|
