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1 // Copyright (c) 1994-2006 Sun Microsystems Inc. | 1 // Copyright (c) 1994-2006 Sun Microsystems Inc. |
2 // All Rights Reserved. | 2 // All Rights Reserved. |
3 // | 3 // |
4 // Redistribution and use in source and binary forms, with or without | 4 // Redistribution and use in source and binary forms, with or without |
5 // modification, are permitted provided that the following conditions are | 5 // modification, are permitted provided that the following conditions are |
6 // met: | 6 // met: |
7 // | 7 // |
8 // - Redistributions of source code must retain the above copyright notice, | 8 // - Redistributions of source code must retain the above copyright notice, |
9 // this list of conditions and the following disclaimer. | 9 // this list of conditions and the following disclaimer. |
10 // | 10 // |
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370 // The maximum size for a call instruction including pc-jump. | 370 // The maximum size for a call instruction including pc-jump. |
371 static const int kMaxCallSize = 6; | 371 static const int kMaxCallSize = 6; |
372 | 372 |
373 // The maximum pc delta that will use the short encoding. | 373 // The maximum pc delta that will use the short encoding. |
374 static const int kMaxSmallPCDelta; | 374 static const int kMaxSmallPCDelta; |
375 | 375 |
376 enum Mode { | 376 enum Mode { |
377 // Please note the order is important (see IsCodeTarget, IsGCRelocMode). | 377 // Please note the order is important (see IsCodeTarget, IsGCRelocMode). |
378 CODE_TARGET, // Code target which is not any of the above. | 378 CODE_TARGET, // Code target which is not any of the above. |
379 CODE_TARGET_WITH_ID, | 379 CODE_TARGET_WITH_ID, |
380 CONSTRUCT_CALL, // code target that is a call to a JavaScript constructor. | |
381 DEBUGGER_STATEMENT, // Code target for the debugger statement. | 380 DEBUGGER_STATEMENT, // Code target for the debugger statement. |
382 EMBEDDED_OBJECT, | 381 EMBEDDED_OBJECT, |
383 CELL, | 382 CELL, |
384 | 383 |
385 // Everything after runtime_entry (inclusive) is not GC'ed. | 384 // Everything after runtime_entry (inclusive) is not GC'ed. |
386 RUNTIME_ENTRY, | 385 RUNTIME_ENTRY, |
387 COMMENT, | 386 COMMENT, |
388 POSITION, // See comment for kNoPosition above. | 387 POSITION, // See comment for kNoPosition above. |
389 STATEMENT_POSITION, // See comment for kNoPosition above. | 388 STATEMENT_POSITION, // See comment for kNoPosition above. |
390 | 389 |
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435 | 434 |
436 RelocInfo(Isolate* isolate, byte* pc, Mode rmode, intptr_t data, Code* host) | 435 RelocInfo(Isolate* isolate, byte* pc, Mode rmode, intptr_t data, Code* host) |
437 : isolate_(isolate), pc_(pc), rmode_(rmode), data_(data), host_(host) { | 436 : isolate_(isolate), pc_(pc), rmode_(rmode), data_(data), host_(host) { |
438 DCHECK_NOT_NULL(isolate); | 437 DCHECK_NOT_NULL(isolate); |
439 } | 438 } |
440 | 439 |
441 static inline bool IsRealRelocMode(Mode mode) { | 440 static inline bool IsRealRelocMode(Mode mode) { |
442 return mode >= FIRST_REAL_RELOC_MODE && | 441 return mode >= FIRST_REAL_RELOC_MODE && |
443 mode <= LAST_REAL_RELOC_MODE; | 442 mode <= LAST_REAL_RELOC_MODE; |
444 } | 443 } |
445 static inline bool IsConstructCall(Mode mode) { | |
446 return mode == CONSTRUCT_CALL; | |
447 } | |
448 static inline bool IsCodeTarget(Mode mode) { | 444 static inline bool IsCodeTarget(Mode mode) { |
449 return mode <= LAST_CODE_ENUM; | 445 return mode <= LAST_CODE_ENUM; |
450 } | 446 } |
451 static inline bool IsEmbeddedObject(Mode mode) { | 447 static inline bool IsEmbeddedObject(Mode mode) { |
452 return mode == EMBEDDED_OBJECT; | 448 return mode == EMBEDDED_OBJECT; |
453 } | 449 } |
454 static inline bool IsCell(Mode mode) { return mode == CELL; } | 450 static inline bool IsCell(Mode mode) { return mode == CELL; } |
455 static inline bool IsRuntimeEntry(Mode mode) { | 451 static inline bool IsRuntimeEntry(Mode mode) { |
456 return mode == RUNTIME_ENTRY; | 452 return mode == RUNTIME_ENTRY; |
457 } | 453 } |
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1292 std::vector<ConstantPoolEntry> shared_entries; | 1288 std::vector<ConstantPoolEntry> shared_entries; |
1293 }; | 1289 }; |
1294 | 1290 |
1295 Label emitted_label_; // Records pc_offset of emitted pool | 1291 Label emitted_label_; // Records pc_offset of emitted pool |
1296 PerTypeEntryInfo info_[ConstantPoolEntry::NUMBER_OF_TYPES]; | 1292 PerTypeEntryInfo info_[ConstantPoolEntry::NUMBER_OF_TYPES]; |
1297 }; | 1293 }; |
1298 | 1294 |
1299 } // namespace internal | 1295 } // namespace internal |
1300 } // namespace v8 | 1296 } // namespace v8 |
1301 #endif // V8_ASSEMBLER_H_ | 1297 #endif // V8_ASSEMBLER_H_ |
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