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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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493 // The high 8 bits are set to zero. | 493 // The high 8 bits are set to zero. |
494 void label_at_put(Label* L, int at_offset); | 494 void label_at_put(Label* L, int at_offset); |
495 | 495 |
496 // Read/Modify the code target address in the branch/call instruction at pc. | 496 // Read/Modify the code target address in the branch/call instruction at pc. |
497 static Address target_address_at(Address pc); | 497 static Address target_address_at(Address pc); |
498 static void set_target_address_at(Address pc, | 498 static void set_target_address_at(Address pc, |
499 Address target, | 499 Address target, |
500 ICacheFlushMode icache_flush_mode = | 500 ICacheFlushMode icache_flush_mode = |
501 FLUSH_ICACHE_IF_NEEDED); | 501 FLUSH_ICACHE_IF_NEEDED); |
502 // On MIPS there is no Constant Pool so we skip that parameter. | 502 // On MIPS there is no Constant Pool so we skip that parameter. |
503 INLINE(static Address target_address_at(Address pc, Address constant_pool)) { | 503 INLINE(static Address target_address_at(Address pc, |
| 504 ConstantPoolArray* constant_pool)) { |
504 return target_address_at(pc); | 505 return target_address_at(pc); |
505 } | 506 } |
506 INLINE(static void set_target_address_at( | 507 INLINE(static void set_target_address_at(Address pc, |
507 Address pc, Address constant_pool, Address target, | 508 ConstantPoolArray* constant_pool, |
508 ICacheFlushMode icache_flush_mode = FLUSH_ICACHE_IF_NEEDED)) { | 509 Address target, |
| 510 ICacheFlushMode icache_flush_mode = |
| 511 FLUSH_ICACHE_IF_NEEDED)) { |
509 set_target_address_at(pc, target, icache_flush_mode); | 512 set_target_address_at(pc, target, icache_flush_mode); |
510 } | 513 } |
511 INLINE(static Address target_address_at(Address pc, Code* code)) { | 514 INLINE(static Address target_address_at(Address pc, Code* code)) { |
512 Address constant_pool = code ? code->constant_pool() : NULL; | 515 ConstantPoolArray* constant_pool = code ? code->constant_pool() : NULL; |
513 return target_address_at(pc, constant_pool); | 516 return target_address_at(pc, constant_pool); |
514 } | 517 } |
515 INLINE(static void set_target_address_at(Address pc, | 518 INLINE(static void set_target_address_at(Address pc, |
516 Code* code, | 519 Code* code, |
517 Address target, | 520 Address target, |
518 ICacheFlushMode icache_flush_mode = | 521 ICacheFlushMode icache_flush_mode = |
519 FLUSH_ICACHE_IF_NEEDED)) { | 522 FLUSH_ICACHE_IF_NEEDED)) { |
520 Address constant_pool = code ? code->constant_pool() : NULL; | 523 ConstantPoolArray* constant_pool = code ? code->constant_pool() : NULL; |
521 set_target_address_at(pc, constant_pool, target, icache_flush_mode); | 524 set_target_address_at(pc, constant_pool, target, icache_flush_mode); |
522 } | 525 } |
523 | 526 |
524 // Return the code target address at a call site from the return address | 527 // Return the code target address at a call site from the return address |
525 // of that call in the instruction stream. | 528 // of that call in the instruction stream. |
526 inline static Address target_address_from_return_address(Address pc); | 529 inline static Address target_address_from_return_address(Address pc); |
527 | 530 |
528 // Return the code target address of the patch debug break slot | 531 // Return the code target address of the patch debug break slot |
529 inline static Address break_address_from_return_address(Address pc); | 532 inline static Address break_address_from_return_address(Address pc); |
530 | 533 |
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1071 void RecordDeoptReason(const int reason, const SourcePosition position); | 1074 void RecordDeoptReason(const int reason, const SourcePosition position); |
1072 | 1075 |
1073 | 1076 |
1074 static int RelocateInternalReference(RelocInfo::Mode rmode, byte* pc, | 1077 static int RelocateInternalReference(RelocInfo::Mode rmode, byte* pc, |
1075 intptr_t pc_delta); | 1078 intptr_t pc_delta); |
1076 | 1079 |
1077 // Writes a single byte or word of data in the code stream. Used for | 1080 // Writes a single byte or word of data in the code stream. Used for |
1078 // inline tables, e.g., jump-tables. | 1081 // inline tables, e.g., jump-tables. |
1079 void db(uint8_t data); | 1082 void db(uint8_t data); |
1080 void dd(uint32_t data); | 1083 void dd(uint32_t data); |
1081 void dq(uint64_t data); | |
1082 void dp(uintptr_t data) { dd(data); } | |
1083 void dd(Label* label); | 1084 void dd(Label* label); |
1084 | 1085 |
1085 // Emits the address of the code stub's first instruction. | 1086 // Emits the address of the code stub's first instruction. |
1086 void emit_code_stub_address(Code* stub); | 1087 void emit_code_stub_address(Code* stub); |
1087 | 1088 |
1088 PositionsRecorder* positions_recorder() { return &positions_recorder_; } | 1089 PositionsRecorder* positions_recorder() { return &positions_recorder_; } |
1089 | 1090 |
1090 // Postpone the generation of the trampoline pool for the specified number of | 1091 // Postpone the generation of the trampoline pool for the specified number of |
1091 // instructions. | 1092 // instructions. |
1092 void BlockTrampolinePoolFor(int instructions); | 1093 void BlockTrampolinePoolFor(int instructions); |
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1157 static bool IsSw(Instr instr); | 1158 static bool IsSw(Instr instr); |
1158 static Instr SetSwOffset(Instr instr, int16_t offset); | 1159 static Instr SetSwOffset(Instr instr, int16_t offset); |
1159 static bool IsAddImmediate(Instr instr); | 1160 static bool IsAddImmediate(Instr instr); |
1160 static Instr SetAddImmediateOffset(Instr instr, int16_t offset); | 1161 static Instr SetAddImmediateOffset(Instr instr, int16_t offset); |
1161 | 1162 |
1162 static bool IsAndImmediate(Instr instr); | 1163 static bool IsAndImmediate(Instr instr); |
1163 static bool IsEmittedConstant(Instr instr); | 1164 static bool IsEmittedConstant(Instr instr); |
1164 | 1165 |
1165 void CheckTrampolinePool(); | 1166 void CheckTrampolinePool(); |
1166 | 1167 |
1167 void PatchConstantPoolAccessInstruction(int pc_offset, int offset, | 1168 // Allocate a constant pool of the correct size for the generated code. |
1168 ConstantPoolEntry::Access access, | 1169 Handle<ConstantPoolArray> NewConstantPool(Isolate* isolate); |
1169 ConstantPoolEntry::Type type) { | 1170 |
1170 // No embedded constant pool support. | 1171 // Generate the constant pool for the generated code. |
1171 UNREACHABLE(); | 1172 void PopulateConstantPool(ConstantPoolArray* constant_pool); |
1172 } | |
1173 | 1173 |
1174 protected: | 1174 protected: |
1175 // Relocation for a type-recording IC has the AST id added to it. This | 1175 // Relocation for a type-recording IC has the AST id added to it. This |
1176 // member variable is a way to pass the information from the call site to | 1176 // member variable is a way to pass the information from the call site to |
1177 // the relocation info. | 1177 // the relocation info. |
1178 TypeFeedbackId recorded_ast_id_; | 1178 TypeFeedbackId recorded_ast_id_; |
1179 | 1179 |
1180 int32_t buffer_space() const { return reloc_info_writer.pos() - pc_; } | 1180 int32_t buffer_space() const { return reloc_info_writer.pos() - pc_; } |
1181 | 1181 |
1182 // Decode branch instruction at pos and return branch target pos. | 1182 // Decode branch instruction at pos and return branch target pos. |
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1441 class EnsureSpace BASE_EMBEDDED { | 1441 class EnsureSpace BASE_EMBEDDED { |
1442 public: | 1442 public: |
1443 explicit EnsureSpace(Assembler* assembler) { | 1443 explicit EnsureSpace(Assembler* assembler) { |
1444 assembler->CheckBuffer(); | 1444 assembler->CheckBuffer(); |
1445 } | 1445 } |
1446 }; | 1446 }; |
1447 | 1447 |
1448 } } // namespace v8::internal | 1448 } } // namespace v8::internal |
1449 | 1449 |
1450 #endif // V8_ARM_ASSEMBLER_MIPS_H_ | 1450 #endif // V8_ARM_ASSEMBLER_MIPS_H_ |
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