Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 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 |
| 3 | // found in the LICENSE file. |
| 4 | |
| 5 | #ifndef V8_INTERPRETER_INTERPRETER_H_ |
| 6 | #define V8_INTERPRETER_INTERPRETER_H_ |
| 7 | |
| 8 | // Clients of this interface shouldn't depend on lots of interpreter internals. |
| 9 | // Do not include anything from src/interpreter other than |
| 10 | // src/interpreter/bytecodes.h here! |
| 11 | #include "src/base/macros.h" |
| 12 | #include "src/builtins.h" |
| 13 | #include "src/interpreter/bytecodes.h" |
| 14 | #include "src/parsing/token.h" |
| 15 | #include "src/runtime/runtime.h" |
| 16 | |
| 17 | namespace v8 { |
| 18 | namespace internal { |
| 19 | |
| 20 | class Isolate; |
| 21 | class Callable; |
| 22 | class CompilationInfo; |
| 23 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 24 | namespace interpreter { |
| 25 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 26 | class InterpreterAssembler; |
| 27 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 28 | class Interpreter { |
| 29 | public: |
| 30 | explicit Interpreter(Isolate* isolate); |
| 31 | virtual ~Interpreter() {} |
| 32 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 33 | // Initializes the interpreter dispatch table. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 34 | void Initialize(); |
| 35 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 36 | // Returns the interrupt budget which should be used for the profiler counter. |
| 37 | static int InterruptBudget(); |
| 38 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 39 | // Generate bytecode for |info|. |
| 40 | static bool MakeBytecode(CompilationInfo* info); |
| 41 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 42 | // Return bytecode handler for |bytecode|. |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 43 | Code* GetBytecodeHandler(Bytecode bytecode, OperandScale operand_scale); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 44 | |
| 45 | // GC support. |
| 46 | void IterateDispatchTable(ObjectVisitor* v); |
| 47 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 48 | // Disassembler support (only useful with ENABLE_DISASSEMBLER defined). |
| 49 | void TraceCodegen(Handle<Code> code); |
| 50 | const char* LookupNameOfBytecodeHandler(Code* code); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 51 | |
| 52 | Address dispatch_table_address() { |
| 53 | return reinterpret_cast<Address>(&dispatch_table_[0]); |
| 54 | } |
| 55 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 56 | private: |
| 57 | // Bytecode handler generator functions. |
| 58 | #define DECLARE_BYTECODE_HANDLER_GENERATOR(Name, ...) \ |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 59 | void Do##Name(InterpreterAssembler* assembler); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 60 | BYTECODE_LIST(DECLARE_BYTECODE_HANDLER_GENERATOR) |
| 61 | #undef DECLARE_BYTECODE_HANDLER_GENERATOR |
| 62 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 63 | // Generates code to perform the binary operations via |callable|. |
| 64 | void DoBinaryOp(Callable callable, InterpreterAssembler* assembler); |
| 65 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 66 | // Generates code to perform the binary operations via |function_id|. |
| 67 | void DoBinaryOp(Runtime::FunctionId function_id, |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 68 | InterpreterAssembler* assembler); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 69 | |
| 70 | // Generates code to perform the count operations via |function_id|. |
| 71 | void DoCountOp(Runtime::FunctionId function_id, |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 72 | InterpreterAssembler* assembler); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 73 | |
| 74 | // Generates code to perform the comparison operation associated with |
| 75 | // |compare_op|. |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 76 | void DoCompareOp(Token::Value compare_op, InterpreterAssembler* assembler); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 77 | |
| 78 | // Generates code to load a constant from the constant pool. |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 79 | void DoLoadConstant(InterpreterAssembler* assembler); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 80 | |
| 81 | // Generates code to perform a global load via |ic|. |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 82 | void DoLoadGlobal(Callable ic, InterpreterAssembler* assembler); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 83 | |
| 84 | // Generates code to perform a global store via |ic|. |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 85 | void DoStoreGlobal(Callable ic, InterpreterAssembler* assembler); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 86 | |
| 87 | // Generates code to perform a named property load via |ic|. |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 88 | void DoLoadIC(Callable ic, InterpreterAssembler* assembler); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 89 | |
| 90 | // Generates code to perform a keyed property load via |ic|. |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 91 | void DoKeyedLoadIC(Callable ic, InterpreterAssembler* assembler); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 92 | |
| 93 | // Generates code to perform a namedproperty store via |ic|. |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 94 | void DoStoreIC(Callable ic, InterpreterAssembler* assembler); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 95 | |
| 96 | // Generates code to perform a keyed property store via |ic|. |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 97 | void DoKeyedStoreIC(Callable ic, InterpreterAssembler* assembler); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 98 | |
| 99 | // Generates code to perform a JS call. |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 100 | void DoJSCall(InterpreterAssembler* assembler, TailCallMode tail_call_mode); |
| 101 | |
| 102 | // Generates code to perform a runtime call. |
| 103 | void DoCallRuntimeCommon(InterpreterAssembler* assembler); |
| 104 | |
| 105 | // Generates code to perform a runtime call returning a pair. |
| 106 | void DoCallRuntimeForPairCommon(InterpreterAssembler* assembler); |
| 107 | |
| 108 | // Generates code to perform a JS runtime call. |
| 109 | void DoCallJSRuntimeCommon(InterpreterAssembler* assembler); |
| 110 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 111 | // Generates code to perform a constructor call. |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 112 | void DoCallConstruct(InterpreterAssembler* assembler); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 113 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 114 | // Generates code to perform a type conversion. |
| 115 | void DoTypeConversionOp(Callable callable, InterpreterAssembler* assembler); |
| 116 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 117 | // Generates code ro create a literal via |function_id|. |
| 118 | void DoCreateLiteral(Runtime::FunctionId function_id, |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 119 | InterpreterAssembler* assembler); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 120 | |
| 121 | // Generates code to perform delete via function_id. |
| 122 | void DoDelete(Runtime::FunctionId function_id, |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 123 | InterpreterAssembler* assembler); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 124 | |
| 125 | // Generates code to perform a lookup slot load via |function_id|. |
| 126 | void DoLoadLookupSlot(Runtime::FunctionId function_id, |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 127 | InterpreterAssembler* assembler); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 128 | |
| 129 | // Generates code to perform a lookup slot store depending on |language_mode|. |
| 130 | void DoStoreLookupSlot(LanguageMode language_mode, |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 131 | InterpreterAssembler* assembler); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 132 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 133 | // Get dispatch table index of bytecode. |
| 134 | static size_t GetDispatchTableIndex(Bytecode bytecode, |
| 135 | OperandScale operand_scale); |
| 136 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 137 | bool IsDispatchTableInitialized(); |
| 138 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 139 | static const int kNumberOfWideVariants = 3; |
| 140 | static const int kDispatchTableSize = kNumberOfWideVariants * (kMaxUInt8 + 1); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 141 | |
| 142 | Isolate* isolate_; |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 143 | Code* dispatch_table_[kDispatchTableSize]; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 144 | |
| 145 | DISALLOW_COPY_AND_ASSIGN(Interpreter); |
| 146 | }; |
| 147 | |
| 148 | } // namespace interpreter |
| 149 | } // namespace internal |
| 150 | } // namespace v8 |
| 151 | |
| 152 | #endif // V8_INTERPRETER_INTERPRETER_H_ |