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Side by Side Diff: src/interpreter/interpreter.h

Issue 2765433003: [interpreter] Split bytecode generation out of interpreter.cc (Closed)
Patch Set: addressed nits Created 3 years, 9 months ago
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1 // Copyright 2015 the V8 project authors. All rights reserved. 1 // Copyright 2015 the V8 project authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 #ifndef V8_INTERPRETER_INTERPRETER_H_ 5 #ifndef V8_INTERPRETER_INTERPRETER_H_
6 #define V8_INTERPRETER_INTERPRETER_H_ 6 #define V8_INTERPRETER_INTERPRETER_H_
7 7
8 #include <memory> 8 #include <memory>
9 9
10 // Clients of this interface shouldn't depend on lots of interpreter internals. 10 // Clients of this interface shouldn't depend on lots of interpreter internals.
11 // Do not include anything from src/interpreter other than 11 // Do not include anything from src/interpreter other than
12 // src/interpreter/bytecodes.h here! 12 // src/interpreter/bytecodes.h here!
13 #include "src/base/macros.h" 13 #include "src/base/macros.h"
14 #include "src/builtins/builtins.h" 14 #include "src/builtins/builtins.h"
15 #include "src/interpreter/bytecodes.h" 15 #include "src/interpreter/bytecodes.h"
16 #include "src/parsing/token.h" 16 #include "src/parsing/token.h"
17 #include "src/runtime/runtime.h" 17 #include "src/runtime/runtime.h"
18 18
19 namespace v8 { 19 namespace v8 {
20 namespace internal { 20 namespace internal {
21 21
22 class Isolate; 22 class Isolate;
23 class Callable; 23 class Callable;
24 class CompilationInfo; 24 class CompilationInfo;
25 class CompilationJob; 25 class CompilationJob;
26 26
27 namespace compiler {
28 class Node;
29 } // namespace compiler
30
31 namespace interpreter { 27 namespace interpreter {
32 28
33 class InterpreterAssembler; 29 class InterpreterAssembler;
34 30
35 class Interpreter { 31 class Interpreter {
36 public: 32 public:
37 explicit Interpreter(Isolate* isolate); 33 explicit Interpreter(Isolate* isolate);
38 virtual ~Interpreter() {} 34 virtual ~Interpreter() {}
39 35
40 // Initializes the interpreter dispatch table. 36 // Initializes the interpreter dispatch table.
41 void Initialize(); 37 void Initialize();
42 38
43 // Returns the interrupt budget which should be used for the profiler counter. 39 // Returns the interrupt budget which should be used for the profiler counter.
44 static int InterruptBudget(); 40 static int InterruptBudget();
45 41
46 // Creates a compilation job which will generate bytecode for |info|. 42 // Creates a compilation job which will generate bytecode for |info|.
47 static CompilationJob* NewCompilationJob(CompilationInfo* info); 43 static CompilationJob* NewCompilationJob(CompilationInfo* info);
48 44
49 // Return bytecode handler for |bytecode|. 45 // Return bytecode handler for |bytecode|.
50 Code* GetBytecodeHandler(Bytecode bytecode, OperandScale operand_scale); 46 Code* GetBytecodeHandler(Bytecode bytecode, OperandScale operand_scale);
51 47
52 // GC support. 48 // GC support.
53 void IterateDispatchTable(ObjectVisitor* v); 49 void IterateDispatchTable(ObjectVisitor* v);
54 50
55 // Disassembler support (only useful with ENABLE_DISASSEMBLER defined). 51 // Disassembler support (only useful with ENABLE_DISASSEMBLER defined).
56 void TraceCodegen(Handle<Code> code);
57 const char* LookupNameOfBytecodeHandler(Code* code); 52 const char* LookupNameOfBytecodeHandler(Code* code);
58 53
59 V8_EXPORT_PRIVATE Local<v8::Object> GetDispatchCountersObject(); 54 V8_EXPORT_PRIVATE Local<v8::Object> GetDispatchCountersObject();
60 55
61 Address dispatch_table_address() { 56 Address dispatch_table_address() {
62 return reinterpret_cast<Address>(&dispatch_table_[0]); 57 return reinterpret_cast<Address>(&dispatch_table_[0]);
63 } 58 }
64 59
65 Address bytecode_dispatch_counters_table() { 60 Address bytecode_dispatch_counters_table() {
66 return reinterpret_cast<Address>(bytecode_dispatch_counters_table_.get()); 61 return reinterpret_cast<Address>(bytecode_dispatch_counters_table_.get());
67 } 62 }
68 63
69 // TODO(ignition): Tune code size multiplier. 64 // TODO(ignition): Tune code size multiplier.
70 static const int kCodeSizeMultiplier = 32; 65 static const int kCodeSizeMultiplier = 32;
71 66
72 private: 67 private:
73 // Bytecode handler generator functions.
74 #define DECLARE_BYTECODE_HANDLER_GENERATOR(Name, ...) \
75 void Do##Name(InterpreterAssembler* assembler);
76 BYTECODE_LIST(DECLARE_BYTECODE_HANDLER_GENERATOR)
77 #undef DECLARE_BYTECODE_HANDLER_GENERATOR
78
79 typedef void (Interpreter::*BytecodeGeneratorFunc)(InterpreterAssembler*);
80
81 // In the case of bytecodes that share handler implementations, copy the code 68 // In the case of bytecodes that share handler implementations, copy the code
82 // into the bytecode's dispatcher table entry and return true. 69 // into the bytecode's dispatcher table entry and return true.
83 bool ReuseExistingHandler(Bytecode bytecode, OperandScale operand_scale); 70 bool ReuseExistingHandler(Bytecode bytecode, OperandScale operand_scale);
84 71
85 // Generates handler for given |bytecode| and |operand_scale| using 72 // Generates handler for given |bytecode| and |operand_scale|
86 // |generator| and installs it into the dispatch table. 73 // and installs it into the dispatch table.
87 void InstallBytecodeHandler(Zone* zone, Bytecode bytecode, 74 void InstallBytecodeHandler(Isolate* isolate, Bytecode bytecode,
88 OperandScale operand_scale, 75 OperandScale operand_scale);
89 BytecodeGeneratorFunc generator);
90
91 // Generates code to perform the binary operation via |Generator|.
92 template <class Generator>
93 void DoBinaryOpWithFeedback(InterpreterAssembler* assembler);
94
95 // Generates code to perform the comparison via |Generator| while gathering
96 // type feedback.
97 void DoCompareOpWithFeedback(Token::Value compare_op,
98 InterpreterAssembler* assembler);
99
100 // Generates code to perform the bitwise binary operation corresponding to
101 // |bitwise_op| while gathering type feedback.
102 void DoBitwiseBinaryOp(Token::Value bitwise_op,
103 InterpreterAssembler* assembler);
104
105 // Generates code to perform the binary operation via |Generator| using
106 // an immediate value rather the accumulator as the rhs operand.
107 template <class Generator>
108 void DoBinaryOpWithImmediate(InterpreterAssembler* assembler);
109
110 // Generates code to perform the unary operation via |Generator| while
111 // gatering type feedback.
112 template <class Generator>
113 void DoUnaryOpWithFeedback(InterpreterAssembler* assembler);
114
115 // Generates code to perform the comparison operation associated with
116 // |compare_op|.
117 void DoCompareOp(Token::Value compare_op, InterpreterAssembler* assembler);
118
119 // Generates code to perform a global store via |ic|.
120 void DoStaGlobal(Callable ic, InterpreterAssembler* assembler);
121
122 // Generates code to perform a named property store via |ic|.
123 void DoStoreIC(Callable ic, InterpreterAssembler* assembler);
124
125 // Generates code to perform a keyed property store via |ic|.
126 void DoKeyedStoreIC(Callable ic, InterpreterAssembler* assembler);
127
128 // Generates code to perform a JS call that collects type feedback.
129 void DoJSCall(InterpreterAssembler* assembler, TailCallMode tail_call_mode);
130
131 // Generates code to perform a JS call with a known number of arguments that
132 // collects type feedback.
133 void DoJSCallN(InterpreterAssembler* assembler, int n);
134
135 // Generates code to perform delete via function_id.
136 void DoDelete(Runtime::FunctionId function_id,
137 InterpreterAssembler* assembler);
138
139 // Generates code to perform a lookup slot load via |function_id|.
140 void DoLdaLookupSlot(Runtime::FunctionId function_id,
141 InterpreterAssembler* assembler);
142
143 // Generates code to perform a lookup slot load via |function_id| that can
144 // fast path to a context slot load.
145 void DoLdaLookupContextSlot(Runtime::FunctionId function_id,
146 InterpreterAssembler* assembler);
147
148 // Generates code to perform a lookup slot load via |function_id| that can
149 // fast path to a global load.
150 void DoLdaLookupGlobalSlot(Runtime::FunctionId function_id,
151 InterpreterAssembler* assembler);
152
153 // Generates code to perform a lookup slot store depending on
154 // |language_mode|.
155 void DoStaLookupSlot(LanguageMode language_mode,
156 InterpreterAssembler* assembler);
157
158 // Generates code to load a global property.
159 void BuildLoadGlobalIC(int slot_operand_index, int name_operand_index,
160 TypeofMode typeof_mode,
161 InterpreterAssembler* assembler);
162
163 // Generates code to load a property.
164 void BuildLoadIC(int recv_operand_index, int slot_operand_index,
165 int name_operand_index, InterpreterAssembler* assembler);
166
167 // Generates code to prepare the result for ForInPrepare. Cache data
168 // are placed into the consecutive series of registers starting at
169 // |output_register|.
170 void BuildForInPrepareResult(compiler::Node* output_register,
171 compiler::Node* cache_type,
172 compiler::Node* cache_array,
173 compiler::Node* cache_length,
174 InterpreterAssembler* assembler);
175
176 // Generates code to perform the unary operation via |callable|.
177 compiler::Node* BuildUnaryOp(Callable callable,
178 InterpreterAssembler* assembler);
179 76
180 uintptr_t GetDispatchCounter(Bytecode from, Bytecode to) const; 77 uintptr_t GetDispatchCounter(Bytecode from, Bytecode to) const;
181 78
182 // Get dispatch table index of bytecode. 79 // Get dispatch table index of bytecode.
183 static size_t GetDispatchTableIndex(Bytecode bytecode, 80 static size_t GetDispatchTableIndex(Bytecode bytecode,
184 OperandScale operand_scale); 81 OperandScale operand_scale);
185 82
186 bool IsDispatchTableInitialized(); 83 bool IsDispatchTableInitialized();
187 bool ShouldInitializeDispatchTable(); 84 bool ShouldInitializeDispatchTable();
188 85
189 static const int kNumberOfWideVariants = 3; 86 static const int kNumberOfWideVariants = 3;
190 static const int kDispatchTableSize = kNumberOfWideVariants * (kMaxUInt8 + 1); 87 static const int kDispatchTableSize = kNumberOfWideVariants * (kMaxUInt8 + 1);
191 static const int kNumberOfBytecodes = static_cast<int>(Bytecode::kLast) + 1; 88 static const int kNumberOfBytecodes = static_cast<int>(Bytecode::kLast) + 1;
192 89
193 Isolate* isolate_; 90 Isolate* isolate_;
194 Address dispatch_table_[kDispatchTableSize]; 91 Address dispatch_table_[kDispatchTableSize];
195 std::unique_ptr<uintptr_t[]> bytecode_dispatch_counters_table_; 92 std::unique_ptr<uintptr_t[]> bytecode_dispatch_counters_table_;
196 93
197 DISALLOW_COPY_AND_ASSIGN(Interpreter); 94 DISALLOW_COPY_AND_ASSIGN(Interpreter);
198 }; 95 };
199 96
200 } // namespace interpreter 97 } // namespace interpreter
201 } // namespace internal 98 } // namespace internal
202 } // namespace v8 99 } // namespace v8
203 100
204 #endif // V8_INTERPRETER_INTERPRETER_H_ 101 #endif // V8_INTERPRETER_INTERPRETER_H_
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