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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_BYTECODES_H_ | 5 #ifndef V8_INTERPRETER_BYTECODES_H_ |
6 #define V8_INTERPRETER_BYTECODES_H_ | 6 #define V8_INTERPRETER_BYTECODES_H_ |
7 | 7 |
8 #include <iosfwd> | 8 #include <iosfwd> |
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 here! | 11 // Do not include anything from src/interpreter here! |
12 #include "src/utils.h" | 12 #include "src/utils.h" |
13 | 13 |
14 namespace v8 { | 14 namespace v8 { |
15 namespace internal { | 15 namespace internal { |
16 namespace interpreter { | 16 namespace interpreter { |
17 | 17 |
18 #define INVALID_OPERAND_TYPE_LIST(V) \ | 18 #define INVALID_OPERAND_TYPE_LIST(V) \ |
19 V(None, OperandSize::kNone) | 19 V(None, OperandSize::kNone) |
20 | 20 |
21 #define REGISTER_OPERAND_TYPE_LIST(V) \ | 21 #define REGISTER_INPUT_OPERAND_TYPE_LIST(V) \ |
22 /* Byte operands. */ \ | 22 /* Byte operands. */ \ |
23 V(MaybeReg8, OperandSize::kByte) \ | 23 V(MaybeReg8, OperandSize::kByte) \ |
24 V(Reg8, OperandSize::kByte) \ | 24 V(Reg8, OperandSize::kByte) \ |
25 V(RegPair8, OperandSize::kByte) \ | 25 V(RegPair8, OperandSize::kByte) \ |
26 V(RegTriple8, OperandSize::kByte) \ | 26 /* Short operands. */ \ |
27 /* Short operands. */ \ | 27 V(MaybeReg16, OperandSize::kShort) \ |
28 V(MaybeReg16, OperandSize::kShort) \ | 28 V(Reg16, OperandSize::kShort) \ |
29 V(Reg16, OperandSize::kShort) \ | 29 V(RegPair16, OperandSize::kShort) |
30 V(RegPair16, OperandSize::kShort) \ | 30 |
31 V(RegTriple16, OperandSize::kShort) | 31 #define REGISTER_OUTPUT_OPERAND_TYPE_LIST(V) \ |
| 32 /* Byte operands. */ \ |
| 33 V(RegOut8, OperandSize::kByte) \ |
| 34 V(RegOutPair8, OperandSize::kByte) \ |
| 35 V(RegOutTriple8, OperandSize::kByte) \ |
| 36 /* Short operands. */ \ |
| 37 V(RegOut16, OperandSize::kShort) \ |
| 38 V(RegOutPair16, OperandSize::kShort) \ |
| 39 V(RegOutTriple16, OperandSize::kShort) |
32 | 40 |
33 #define SCALAR_OPERAND_TYPE_LIST(V) \ | 41 #define SCALAR_OPERAND_TYPE_LIST(V) \ |
34 /* Byte operands. */ \ | 42 /* Byte operands. */ \ |
35 V(Idx8, OperandSize::kByte) \ | 43 V(Idx8, OperandSize::kByte) \ |
36 V(Imm8, OperandSize::kByte) \ | 44 V(Imm8, OperandSize::kByte) \ |
37 V(RegCount8, OperandSize::kByte) \ | 45 V(RegCount8, OperandSize::kByte) \ |
38 /* Short operands. */ \ | 46 /* Short operands. */ \ |
39 V(Idx16, OperandSize::kShort) \ | 47 V(Idx16, OperandSize::kShort) \ |
40 V(RegCount16, OperandSize::kShort) | 48 V(RegCount16, OperandSize::kShort) |
41 | 49 |
| 50 #define REGISTER_OPERAND_TYPE_LIST(V) \ |
| 51 REGISTER_INPUT_OPERAND_TYPE_LIST(V) \ |
| 52 REGISTER_OUTPUT_OPERAND_TYPE_LIST(V) |
| 53 |
| 54 #define NON_REGISTER_OPERAND_TYPE_LIST(V) \ |
| 55 INVALID_OPERAND_TYPE_LIST(V) \ |
| 56 SCALAR_OPERAND_TYPE_LIST(V) |
| 57 |
42 // The list of operand types used by bytecodes. | 58 // The list of operand types used by bytecodes. |
43 #define OPERAND_TYPE_LIST(V) \ | 59 #define OPERAND_TYPE_LIST(V) \ |
44 INVALID_OPERAND_TYPE_LIST(V) \ | 60 NON_REGISTER_OPERAND_TYPE_LIST(V) \ |
45 REGISTER_OPERAND_TYPE_LIST(V) \ | 61 REGISTER_OPERAND_TYPE_LIST(V) |
46 SCALAR_OPERAND_TYPE_LIST(V) | |
47 | 62 |
48 // The list of bytecodes which are interpreted by the interpreter. | 63 // The list of bytecodes which are interpreted by the interpreter. |
49 #define BYTECODE_LIST(V) \ | 64 #define BYTECODE_LIST(V) \ |
50 \ | 65 \ |
51 /* Loading the accumulator */ \ | 66 /* Loading the accumulator */ \ |
52 V(LdaZero, OperandType::kNone) \ | 67 V(LdaZero, OperandType::kNone) \ |
53 V(LdaSmi8, OperandType::kImm8) \ | 68 V(LdaSmi8, OperandType::kImm8) \ |
54 V(LdaUndefined, OperandType::kNone) \ | 69 V(LdaUndefined, OperandType::kNone) \ |
55 V(LdaNull, OperandType::kNone) \ | 70 V(LdaNull, OperandType::kNone) \ |
56 V(LdaTheHole, OperandType::kNone) \ | 71 V(LdaTheHole, OperandType::kNone) \ |
(...skipping 29 matching lines...) Expand all Loading... |
86 V(LdaLookupSlotInsideTypeof, OperandType::kIdx8) \ | 101 V(LdaLookupSlotInsideTypeof, OperandType::kIdx8) \ |
87 V(LdaLookupSlotWide, OperandType::kIdx16) \ | 102 V(LdaLookupSlotWide, OperandType::kIdx16) \ |
88 V(LdaLookupSlotInsideTypeofWide, OperandType::kIdx16) \ | 103 V(LdaLookupSlotInsideTypeofWide, OperandType::kIdx16) \ |
89 V(StaLookupSlotSloppy, OperandType::kIdx8) \ | 104 V(StaLookupSlotSloppy, OperandType::kIdx8) \ |
90 V(StaLookupSlotStrict, OperandType::kIdx8) \ | 105 V(StaLookupSlotStrict, OperandType::kIdx8) \ |
91 V(StaLookupSlotSloppyWide, OperandType::kIdx16) \ | 106 V(StaLookupSlotSloppyWide, OperandType::kIdx16) \ |
92 V(StaLookupSlotStrictWide, OperandType::kIdx16) \ | 107 V(StaLookupSlotStrictWide, OperandType::kIdx16) \ |
93 \ | 108 \ |
94 /* Register-accumulator transfers */ \ | 109 /* Register-accumulator transfers */ \ |
95 V(Ldar, OperandType::kReg8) \ | 110 V(Ldar, OperandType::kReg8) \ |
96 V(Star, OperandType::kReg8) \ | 111 V(Star, OperandType::kRegOut8) \ |
97 \ | 112 \ |
98 /* Register-register transfers */ \ | 113 /* Register-register transfers */ \ |
99 V(Mov, OperandType::kReg8, OperandType::kReg8) \ | 114 V(Mov, OperandType::kReg8, OperandType::kRegOut8) \ |
100 V(MovWide, OperandType::kReg16, OperandType::kReg16) \ | 115 V(MovWide, OperandType::kReg16, OperandType::kRegOut16) \ |
101 \ | 116 \ |
102 /* LoadIC operations */ \ | 117 /* LoadIC operations */ \ |
103 V(LoadICSloppy, OperandType::kReg8, OperandType::kIdx8, OperandType::kIdx8) \ | 118 V(LoadICSloppy, OperandType::kReg8, OperandType::kIdx8, OperandType::kIdx8) \ |
104 V(LoadICStrict, OperandType::kReg8, OperandType::kIdx8, OperandType::kIdx8) \ | 119 V(LoadICStrict, OperandType::kReg8, OperandType::kIdx8, OperandType::kIdx8) \ |
105 V(KeyedLoadICSloppy, OperandType::kReg8, OperandType::kIdx8) \ | 120 V(KeyedLoadICSloppy, OperandType::kReg8, OperandType::kIdx8) \ |
106 V(KeyedLoadICStrict, OperandType::kReg8, OperandType::kIdx8) \ | 121 V(KeyedLoadICStrict, OperandType::kReg8, OperandType::kIdx8) \ |
107 V(LoadICSloppyWide, OperandType::kReg8, OperandType::kIdx16, \ | 122 V(LoadICSloppyWide, OperandType::kReg8, OperandType::kIdx16, \ |
108 OperandType::kIdx16) \ | 123 OperandType::kIdx16) \ |
109 V(LoadICStrictWide, OperandType::kReg8, OperandType::kIdx16, \ | 124 V(LoadICStrictWide, OperandType::kReg8, OperandType::kIdx16, \ |
110 OperandType::kIdx16) \ | 125 OperandType::kIdx16) \ |
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152 /* Call operations */ \ | 167 /* Call operations */ \ |
153 V(Call, OperandType::kReg8, OperandType::kReg8, OperandType::kRegCount8, \ | 168 V(Call, OperandType::kReg8, OperandType::kReg8, OperandType::kRegCount8, \ |
154 OperandType::kIdx8) \ | 169 OperandType::kIdx8) \ |
155 V(CallWide, OperandType::kReg16, OperandType::kReg16, \ | 170 V(CallWide, OperandType::kReg16, OperandType::kReg16, \ |
156 OperandType::kRegCount16, OperandType::kIdx16) \ | 171 OperandType::kRegCount16, OperandType::kIdx16) \ |
157 V(CallRuntime, OperandType::kIdx16, OperandType::kMaybeReg8, \ | 172 V(CallRuntime, OperandType::kIdx16, OperandType::kMaybeReg8, \ |
158 OperandType::kRegCount8) \ | 173 OperandType::kRegCount8) \ |
159 V(CallRuntimeWide, OperandType::kIdx16, OperandType::kMaybeReg16, \ | 174 V(CallRuntimeWide, OperandType::kIdx16, OperandType::kMaybeReg16, \ |
160 OperandType::kRegCount8) \ | 175 OperandType::kRegCount8) \ |
161 V(CallRuntimeForPair, OperandType::kIdx16, OperandType::kMaybeReg8, \ | 176 V(CallRuntimeForPair, OperandType::kIdx16, OperandType::kMaybeReg8, \ |
162 OperandType::kRegCount8, OperandType::kRegPair8) \ | 177 OperandType::kRegCount8, OperandType::kRegOutPair8) \ |
163 V(CallRuntimeForPairWide, OperandType::kIdx16, OperandType::kMaybeReg16, \ | 178 V(CallRuntimeForPairWide, OperandType::kIdx16, OperandType::kMaybeReg16, \ |
164 OperandType::kRegCount8, OperandType::kRegPair16) \ | 179 OperandType::kRegCount8, OperandType::kRegOutPair16) \ |
165 V(CallJSRuntime, OperandType::kIdx16, OperandType::kReg8, \ | 180 V(CallJSRuntime, OperandType::kIdx16, OperandType::kReg8, \ |
166 OperandType::kRegCount8) \ | 181 OperandType::kRegCount8) \ |
167 V(CallJSRuntimeWide, OperandType::kIdx16, OperandType::kReg16, \ | 182 V(CallJSRuntimeWide, OperandType::kIdx16, OperandType::kReg16, \ |
168 OperandType::kRegCount16) \ | 183 OperandType::kRegCount16) \ |
169 \ | 184 \ |
170 /* New operator */ \ | 185 /* New operator */ \ |
171 V(New, OperandType::kReg8, OperandType::kMaybeReg8, OperandType::kRegCount8) \ | 186 V(New, OperandType::kReg8, OperandType::kMaybeReg8, OperandType::kRegCount8) \ |
172 V(NewWide, OperandType::kReg16, OperandType::kMaybeReg16, \ | 187 V(NewWide, OperandType::kReg16, OperandType::kMaybeReg16, \ |
173 OperandType::kRegCount16) \ | 188 OperandType::kRegCount16) \ |
174 \ | 189 \ |
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228 V(JumpIfToBooleanFalseConstant, OperandType::kIdx8) \ | 243 V(JumpIfToBooleanFalseConstant, OperandType::kIdx8) \ |
229 V(JumpIfToBooleanFalseConstantWide, OperandType::kIdx16) \ | 244 V(JumpIfToBooleanFalseConstantWide, OperandType::kIdx16) \ |
230 V(JumpIfNull, OperandType::kImm8) \ | 245 V(JumpIfNull, OperandType::kImm8) \ |
231 V(JumpIfNullConstant, OperandType::kIdx8) \ | 246 V(JumpIfNullConstant, OperandType::kIdx8) \ |
232 V(JumpIfNullConstantWide, OperandType::kIdx16) \ | 247 V(JumpIfNullConstantWide, OperandType::kIdx16) \ |
233 V(JumpIfUndefined, OperandType::kImm8) \ | 248 V(JumpIfUndefined, OperandType::kImm8) \ |
234 V(JumpIfUndefinedConstant, OperandType::kIdx8) \ | 249 V(JumpIfUndefinedConstant, OperandType::kIdx8) \ |
235 V(JumpIfUndefinedConstantWide, OperandType::kIdx16) \ | 250 V(JumpIfUndefinedConstantWide, OperandType::kIdx16) \ |
236 \ | 251 \ |
237 /* Complex flow control For..in */ \ | 252 /* Complex flow control For..in */ \ |
238 V(ForInPrepare, OperandType::kRegTriple8) \ | 253 V(ForInPrepare, OperandType::kRegOutTriple8) \ |
239 V(ForInPrepareWide, OperandType::kRegTriple16) \ | 254 V(ForInPrepareWide, OperandType::kRegOutTriple16) \ |
240 V(ForInDone, OperandType::kReg8, OperandType::kReg8) \ | 255 V(ForInDone, OperandType::kReg8, OperandType::kReg8) \ |
241 V(ForInNext, OperandType::kReg8, OperandType::kReg8, OperandType::kRegPair8) \ | 256 V(ForInNext, OperandType::kReg8, OperandType::kReg8, OperandType::kRegPair8) \ |
242 V(ForInNextWide, OperandType::kReg16, OperandType::kReg16, \ | 257 V(ForInNextWide, OperandType::kReg16, OperandType::kReg16, \ |
243 OperandType::kRegPair16) \ | 258 OperandType::kRegPair16) \ |
244 V(ForInStep, OperandType::kReg8) \ | 259 V(ForInStep, OperandType::kReg8) \ |
245 \ | 260 \ |
246 /* Non-local flow control */ \ | 261 /* Non-local flow control */ \ |
247 V(Throw, OperandType::kNone) \ | 262 V(Throw, OperandType::kNone) \ |
248 V(ReThrow, OperandType::kNone) \ | 263 V(ReThrow, OperandType::kNone) \ |
249 V(Return, OperandType::kNone) | 264 V(Return, OperandType::kNone) |
250 | 265 |
251 | |
252 // Enumeration of the size classes of operand types used by bytecodes. | 266 // Enumeration of the size classes of operand types used by bytecodes. |
253 enum class OperandSize : uint8_t { | 267 enum class OperandSize : uint8_t { |
254 kNone = 0, | 268 kNone = 0, |
255 kByte = 1, | 269 kByte = 1, |
256 kShort = 2, | 270 kShort = 2, |
257 }; | 271 }; |
258 | 272 |
259 | 273 |
260 // Enumeration of operand types used by bytecodes. | 274 // Enumeration of operand types used by bytecodes. |
261 enum class OperandType : uint8_t { | 275 enum class OperandType : uint8_t { |
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375 | 389 |
376 // Returns bytecode for |value|. | 390 // Returns bytecode for |value|. |
377 static Bytecode FromByte(uint8_t value); | 391 static Bytecode FromByte(uint8_t value); |
378 | 392 |
379 // Returns the number of operands expected by |bytecode|. | 393 // Returns the number of operands expected by |bytecode|. |
380 static int NumberOfOperands(Bytecode bytecode); | 394 static int NumberOfOperands(Bytecode bytecode); |
381 | 395 |
382 // Returns the number of register operands expected by |bytecode|. | 396 // Returns the number of register operands expected by |bytecode|. |
383 static int NumberOfRegisterOperands(Bytecode bytecode); | 397 static int NumberOfRegisterOperands(Bytecode bytecode); |
384 | 398 |
385 // Return the i-th operand of |bytecode|. | 399 // Returns the i-th operand of |bytecode|. |
386 static OperandType GetOperandType(Bytecode bytecode, int i); | 400 static OperandType GetOperandType(Bytecode bytecode, int i); |
387 | 401 |
388 // Return the size of the i-th operand of |bytecode|. | 402 // Returns the size of the i-th operand of |bytecode|. |
389 static OperandSize GetOperandSize(Bytecode bytecode, int i); | 403 static OperandSize GetOperandSize(Bytecode bytecode, int i); |
390 | 404 |
391 // Returns the offset of the i-th operand of |bytecode| relative to the start | 405 // Returns the offset of the i-th operand of |bytecode| relative to the start |
392 // of the bytecode. | 406 // of the bytecode. |
393 static int GetOperandOffset(Bytecode bytecode, int i); | 407 static int GetOperandOffset(Bytecode bytecode, int i); |
394 | 408 |
395 // Returns a zero-based bitmap of the register operand positions of | 409 // Returns a zero-based bitmap of the register operand positions of |
396 // |bytecode|. | 410 // |bytecode|. |
397 static int GetRegisterOperandBitmap(Bytecode bytecode); | 411 static int GetRegisterOperandBitmap(Bytecode bytecode); |
398 | 412 |
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423 static bool IsJumpImmediate(Bytecode bytecode); | 437 static bool IsJumpImmediate(Bytecode bytecode); |
424 | 438 |
425 // Returns true if the bytecode is a jump or conditional jump taking a | 439 // Returns true if the bytecode is a jump or conditional jump taking a |
426 // constant pool entry (OperandType::kIdx8). | 440 // constant pool entry (OperandType::kIdx8). |
427 static bool IsJumpConstant(Bytecode bytecode); | 441 static bool IsJumpConstant(Bytecode bytecode); |
428 | 442 |
429 // Returns true if the bytecode is a jump or conditional jump taking a | 443 // Returns true if the bytecode is a jump or conditional jump taking a |
430 // constant pool entry (OperandType::kIdx16). | 444 // constant pool entry (OperandType::kIdx16). |
431 static bool IsJumpConstantWide(Bytecode bytecode); | 445 static bool IsJumpConstantWide(Bytecode bytecode); |
432 | 446 |
433 // Return true if the bytecode is a jump or conditional jump taking | 447 // Returns true if the bytecode is a jump or conditional jump taking |
434 // any kind of operand. | 448 // any kind of operand. |
435 static bool IsJump(Bytecode bytecode); | 449 static bool IsJump(Bytecode bytecode); |
436 | 450 |
437 // Return true if the bytecode is a conditional jump, a jump, or a return. | 451 // Returns true if the bytecode is a conditional jump, a jump, or a return. |
438 static bool IsJumpOrReturn(Bytecode bytecode); | 452 static bool IsJumpOrReturn(Bytecode bytecode); |
439 | 453 |
| 454 // Returns true if |operand_type| is any type of register operand. |
| 455 static bool IsRegisterOperandType(OperandType operand_type); |
| 456 |
| 457 // Returns true if |operand_type| represents a register used as an input. |
| 458 static bool IsRegisterInputOperandType(OperandType operand_type); |
| 459 |
| 460 // Returns true if |operand_type| represents a register used as an output. |
| 461 static bool IsRegisterOutputOperandType(OperandType operand_type); |
| 462 |
440 // Decode a single bytecode and operands to |os|. | 463 // Decode a single bytecode and operands to |os|. |
441 static std::ostream& Decode(std::ostream& os, const uint8_t* bytecode_start, | 464 static std::ostream& Decode(std::ostream& os, const uint8_t* bytecode_start, |
442 int number_of_parameters); | 465 int number_of_parameters); |
443 | 466 |
444 private: | 467 private: |
445 DISALLOW_IMPLICIT_CONSTRUCTORS(Bytecodes); | 468 DISALLOW_IMPLICIT_CONSTRUCTORS(Bytecodes); |
446 }; | 469 }; |
447 | 470 |
448 std::ostream& operator<<(std::ostream& os, const Bytecode& bytecode); | 471 std::ostream& operator<<(std::ostream& os, const Bytecode& bytecode); |
449 std::ostream& operator<<(std::ostream& os, const OperandType& operand_type); | 472 std::ostream& operator<<(std::ostream& os, const OperandType& operand_type); |
450 std::ostream& operator<<(std::ostream& os, const OperandSize& operand_type); | 473 std::ostream& operator<<(std::ostream& os, const OperandSize& operand_type); |
451 | 474 |
452 } // namespace interpreter | 475 } // namespace interpreter |
453 } // namespace internal | 476 } // namespace internal |
454 } // namespace v8 | 477 } // namespace v8 |
455 | 478 |
456 #endif // V8_INTERPRETER_BYTECODES_H_ | 479 #endif // V8_INTERPRETER_BYTECODES_H_ |
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