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1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 the V8 project authors. All rights reserved. |
2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
4 // met: | 4 // met: |
5 // | 5 // |
6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
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502 // Will clobber 4 registers: object, address, scratch, ip. The | 502 // Will clobber 4 registers: object, address, scratch, ip. The |
503 // register 'object' contains a heap object pointer. The heap object | 503 // register 'object' contains a heap object pointer. The heap object |
504 // tag is shifted away. | 504 // tag is shifted away. |
505 void MacroAssembler::RecordWrite(Register object, | 505 void MacroAssembler::RecordWrite(Register object, |
506 Register address, | 506 Register address, |
507 Register value, | 507 Register value, |
508 LinkRegisterStatus lr_status, | 508 LinkRegisterStatus lr_status, |
509 SaveFPRegsMode fp_mode, | 509 SaveFPRegsMode fp_mode, |
510 RememberedSetAction remembered_set_action, | 510 RememberedSetAction remembered_set_action, |
511 SmiCheck smi_check) { | 511 SmiCheck smi_check) { |
| 512 ASSERT(!object.is(value)); |
512 if (emit_debug_code()) { | 513 if (emit_debug_code()) { |
513 ldr(ip, MemOperand(address)); | 514 ldr(ip, MemOperand(address)); |
514 cmp(ip, value); | 515 cmp(ip, value); |
515 Check(eq, kWrongAddressOrValuePassedToRecordWrite); | 516 Check(eq, kWrongAddressOrValuePassedToRecordWrite); |
516 } | 517 } |
517 | 518 |
518 // Count number of write barriers in generated code. | 519 // Count number of write barriers in generated code. |
519 isolate()->counters()->write_barriers_static()->Increment(); | 520 isolate()->counters()->write_barriers_static()->Increment(); |
520 // TODO(mstarzinger): Dynamic counter missing. | 521 // TODO(mstarzinger): Dynamic counter missing. |
521 | 522 |
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4074 void CodePatcher::EmitCondition(Condition cond) { | 4075 void CodePatcher::EmitCondition(Condition cond) { |
4075 Instr instr = Assembler::instr_at(masm_.pc_); | 4076 Instr instr = Assembler::instr_at(masm_.pc_); |
4076 instr = (instr & ~kCondMask) | cond; | 4077 instr = (instr & ~kCondMask) | cond; |
4077 masm_.emit(instr); | 4078 masm_.emit(instr); |
4078 } | 4079 } |
4079 | 4080 |
4080 | 4081 |
4081 } } // namespace v8::internal | 4082 } } // namespace v8::internal |
4082 | 4083 |
4083 #endif // V8_TARGET_ARCH_ARM | 4084 #endif // V8_TARGET_ARCH_ARM |
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