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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 | 5 // modification, are permitted provided that the following conditions |
6 // are met: | 6 // are 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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1260 Assembler* assem_; | 1260 Assembler* assem_; |
1261 | 1261 |
1262 DISALLOW_IMPLICIT_CONSTRUCTORS(BlockConstantPoolEntrySharingScope); | 1262 DISALLOW_IMPLICIT_CONSTRUCTORS(BlockConstantPoolEntrySharingScope); |
1263 }; | 1263 }; |
1264 | 1264 |
1265 // Debugging | 1265 // Debugging |
1266 | 1266 |
1267 // Mark address of a debug break slot. | 1267 // Mark address of a debug break slot. |
1268 void RecordDebugBreakSlot(RelocInfo::Mode mode); | 1268 void RecordDebugBreakSlot(RelocInfo::Mode mode); |
1269 | 1269 |
1270 // Record the AST id of the CallIC being compiled, so that it can be placed | |
1271 // in the relocation information. | |
1272 void SetRecordedAstId(TypeFeedbackId ast_id) { | |
1273 // Causes compiler to fail | |
1274 // DCHECK(recorded_ast_id_.IsNone()); | |
1275 recorded_ast_id_ = ast_id; | |
1276 } | |
1277 | |
1278 TypeFeedbackId RecordedAstId() { | |
1279 // Causes compiler to fail | |
1280 // DCHECK(!recorded_ast_id_.IsNone()); | |
1281 return recorded_ast_id_; | |
1282 } | |
1283 | |
1284 void ClearRecordedAstId() { recorded_ast_id_ = TypeFeedbackId::None(); } | |
1285 | |
1286 // Record a comment relocation entry that can be used by a disassembler. | 1270 // Record a comment relocation entry that can be used by a disassembler. |
1287 // Use --code-comments to enable. | 1271 // Use --code-comments to enable. |
1288 void RecordComment(const char* msg); | 1272 void RecordComment(const char* msg); |
1289 | 1273 |
1290 // Record a deoptimization reason that can be used by a log or cpu profiler. | 1274 // Record a deoptimization reason that can be used by a log or cpu profiler. |
1291 // Use --trace-deopt to enable. | 1275 // Use --trace-deopt to enable. |
1292 void RecordDeoptReason(DeoptimizeReason reason, SourcePosition position, | 1276 void RecordDeoptReason(DeoptimizeReason reason, SourcePosition position, |
1293 int id); | 1277 int id); |
1294 | 1278 |
1295 // Writes a single byte or word of data in the code stream. Used | 1279 // Writes a single byte or word of data in the code stream. Used |
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1369 ConstantPoolEntry::OVERFLOWED; | 1353 ConstantPoolEntry::OVERFLOWED; |
1370 } | 1354 } |
1371 | 1355 |
1372 Label* ConstantPoolPosition() { | 1356 Label* ConstantPoolPosition() { |
1373 return constant_pool_builder_.EmittedPosition(); | 1357 return constant_pool_builder_.EmittedPosition(); |
1374 } | 1358 } |
1375 | 1359 |
1376 void EmitRelocations(); | 1360 void EmitRelocations(); |
1377 | 1361 |
1378 protected: | 1362 protected: |
1379 // Relocation for a type-recording IC has the AST id added to it. This | |
1380 // member variable is a way to pass the information from the call site to | |
1381 // the relocation info. | |
1382 TypeFeedbackId recorded_ast_id_; | |
1383 | |
1384 int buffer_space() const { return reloc_info_writer.pos() - pc_; } | 1363 int buffer_space() const { return reloc_info_writer.pos() - pc_; } |
1385 | 1364 |
1386 // Decode instruction(s) at pos and return backchain to previous | 1365 // Decode instruction(s) at pos and return backchain to previous |
1387 // label reference or kEndOfChain. | 1366 // label reference or kEndOfChain. |
1388 int target_at(int pos); | 1367 int target_at(int pos); |
1389 | 1368 |
1390 // Patch instruction(s) at pos to target target_pos (e.g. branch) | 1369 // Patch instruction(s) at pos to target target_pos (e.g. branch) |
1391 void target_at_put(int pos, int target_pos, bool* is_branch = nullptr); | 1370 void target_at_put(int pos, int target_pos, bool* is_branch = nullptr); |
1392 | 1371 |
1393 // Record reloc info for current pc_ | 1372 // Record reloc info for current pc_ |
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1561 PatchingAssembler(IsolateData isolate_data, byte* address, int instructions); | 1540 PatchingAssembler(IsolateData isolate_data, byte* address, int instructions); |
1562 ~PatchingAssembler(); | 1541 ~PatchingAssembler(); |
1563 | 1542 |
1564 void FlushICache(Isolate* isolate); | 1543 void FlushICache(Isolate* isolate); |
1565 }; | 1544 }; |
1566 | 1545 |
1567 } // namespace internal | 1546 } // namespace internal |
1568 } // namespace v8 | 1547 } // namespace v8 |
1569 | 1548 |
1570 #endif // V8_PPC_ASSEMBLER_PPC_H_ | 1549 #endif // V8_PPC_ASSEMBLER_PPC_H_ |
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