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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. |
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49 // Return bytecode handler for |bytecode|. | 49 // Return bytecode handler for |bytecode|. |
50 Code* GetBytecodeHandler(Bytecode bytecode, OperandScale operand_scale); | 50 Code* GetBytecodeHandler(Bytecode bytecode, OperandScale operand_scale); |
51 | 51 |
52 // GC support. | 52 // GC support. |
53 void IterateDispatchTable(ObjectVisitor* v); | 53 void IterateDispatchTable(ObjectVisitor* v); |
54 | 54 |
55 // Disassembler support (only useful with ENABLE_DISASSEMBLER defined). | 55 // Disassembler support (only useful with ENABLE_DISASSEMBLER defined). |
56 void TraceCodegen(Handle<Code> code); | 56 void TraceCodegen(Handle<Code> code); |
57 const char* LookupNameOfBytecodeHandler(Code* code); | 57 const char* LookupNameOfBytecodeHandler(Code* code); |
58 | 58 |
| 59 // Deoptimizer support (to simulate advancing bytecode offset). |
| 60 static int AdvanceBytecodeOffset(BytecodeArray* array, int offset); |
| 61 |
59 V8_EXPORT_PRIVATE Local<v8::Object> GetDispatchCountersObject(); | 62 V8_EXPORT_PRIVATE Local<v8::Object> GetDispatchCountersObject(); |
60 | 63 |
61 Address dispatch_table_address() { | 64 Address dispatch_table_address() { |
62 return reinterpret_cast<Address>(&dispatch_table_[0]); | 65 return reinterpret_cast<Address>(&dispatch_table_[0]); |
63 } | 66 } |
64 | 67 |
65 Address bytecode_dispatch_counters_table() { | 68 Address bytecode_dispatch_counters_table() { |
66 return reinterpret_cast<Address>(bytecode_dispatch_counters_table_.get()); | 69 return reinterpret_cast<Address>(bytecode_dispatch_counters_table_.get()); |
67 } | 70 } |
68 | 71 |
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181 std::unique_ptr<uintptr_t[]> bytecode_dispatch_counters_table_; | 184 std::unique_ptr<uintptr_t[]> bytecode_dispatch_counters_table_; |
182 | 185 |
183 DISALLOW_COPY_AND_ASSIGN(Interpreter); | 186 DISALLOW_COPY_AND_ASSIGN(Interpreter); |
184 }; | 187 }; |
185 | 188 |
186 } // namespace interpreter | 189 } // namespace interpreter |
187 } // namespace internal | 190 } // namespace internal |
188 } // namespace v8 | 191 } // namespace v8 |
189 | 192 |
190 #endif // V8_INTERPRETER_INTERPRETER_H_ | 193 #endif // V8_INTERPRETER_INTERPRETER_H_ |
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