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Side by Side Diff: src/mips64/assembler-mips64.h

Issue 1019083002: MIPS: Serializer: serialize internal references via object visitor. (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: Created 5 years, 9 months ago
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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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533 // This is for calls and branches within generated code. The serializer 533 // This is for calls and branches within generated code. The serializer
534 // has already deserialized the lui/ori instructions etc. 534 // has already deserialized the lui/ori instructions etc.
535 inline static void deserialization_set_special_target_at( 535 inline static void deserialization_set_special_target_at(
536 Address instruction_payload, Code* code, Address target) { 536 Address instruction_payload, Code* code, Address target) {
537 set_target_address_at( 537 set_target_address_at(
538 instruction_payload - kInstructionsFor64BitConstant * kInstrSize, 538 instruction_payload - kInstructionsFor64BitConstant * kInstrSize,
539 code, 539 code,
540 target); 540 target);
541 } 541 }
542 542
543 // This sets the internal reference at the pc.
544 inline static void deserialization_set_target_internal_reference_at(
545 Address pc, Address target);
546
543 // Size of an instruction. 547 // Size of an instruction.
544 static const int kInstrSize = sizeof(Instr); 548 static const int kInstrSize = sizeof(Instr);
545 549
546 // Difference between address of current opcode and target address offset. 550 // Difference between address of current opcode and target address offset.
547 static const int kBranchPCOffset = 4; 551 static const int kBranchPCOffset = 4;
548 552
549 // Here we are patching the address in the LUI/ORI instruction pair. 553 // Here we are patching the address in the LUI/ORI instruction pair.
550 // These values are used in the serialization process and must be zero for 554 // These values are used in the serialization process and must be zero for
551 // MIPS platform, as Code, Embedded Object or External-reference pointers 555 // MIPS platform, as Code, Embedded Object or External-reference pointers
552 // are split across two consecutive instructions and don't exist separately 556 // are split across two consecutive instructions and don't exist separately
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1430 class EnsureSpace BASE_EMBEDDED { 1434 class EnsureSpace BASE_EMBEDDED {
1431 public: 1435 public:
1432 explicit EnsureSpace(Assembler* assembler) { 1436 explicit EnsureSpace(Assembler* assembler) {
1433 assembler->CheckBuffer(); 1437 assembler->CheckBuffer();
1434 } 1438 }
1435 }; 1439 };
1436 1440
1437 } } // namespace v8::internal 1441 } } // namespace v8::internal
1438 1442
1439 #endif // V8_ARM_ASSEMBLER_MIPS_H_ 1443 #endif // V8_ARM_ASSEMBLER_MIPS_H_
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