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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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| 5019 __ CheckPageFlag(regs_.object(), | 5019 __ CheckPageFlag(regs_.object(), |
| 5020 regs_.scratch0(), | 5020 regs_.scratch0(), |
| 5021 1 << MemoryChunk::SCAN_ON_SCAVENGE, | 5021 1 << MemoryChunk::SCAN_ON_SCAVENGE, |
| 5022 ne, | 5022 ne, |
| 5023 &dont_need_remembered_set); | 5023 &dont_need_remembered_set); |
| 5024 | 5024 |
| 5025 // First notify the incremental marker if necessary, then update the | 5025 // First notify the incremental marker if necessary, then update the |
| 5026 // remembered set. | 5026 // remembered set. |
| 5027 CheckNeedsToInformIncrementalMarker( | 5027 CheckNeedsToInformIncrementalMarker( |
| 5028 masm, kUpdateRememberedSetOnNoNeedToInformIncrementalMarker, mode); | 5028 masm, kUpdateRememberedSetOnNoNeedToInformIncrementalMarker, mode); |
| 5029 InformIncrementalMarker(masm, mode); | 5029 InformIncrementalMarker(masm); |
| 5030 regs_.Restore(masm); | 5030 regs_.Restore(masm); |
| 5031 __ RememberedSetHelper(object_, | 5031 __ RememberedSetHelper(object_, |
| 5032 address_, | 5032 address_, |
| 5033 value_, | 5033 value_, |
| 5034 save_fp_regs_mode_, | 5034 save_fp_regs_mode_, |
| 5035 MacroAssembler::kReturnAtEnd); | 5035 MacroAssembler::kReturnAtEnd); |
| 5036 | 5036 |
| 5037 __ bind(&dont_need_remembered_set); | 5037 __ bind(&dont_need_remembered_set); |
| 5038 } | 5038 } |
| 5039 | 5039 |
| 5040 CheckNeedsToInformIncrementalMarker( | 5040 CheckNeedsToInformIncrementalMarker( |
| 5041 masm, kReturnOnNoNeedToInformIncrementalMarker, mode); | 5041 masm, kReturnOnNoNeedToInformIncrementalMarker, mode); |
| 5042 InformIncrementalMarker(masm, mode); | 5042 InformIncrementalMarker(masm); |
| 5043 regs_.Restore(masm); | 5043 regs_.Restore(masm); |
| 5044 __ Ret(); | 5044 __ Ret(); |
| 5045 } | 5045 } |
| 5046 | 5046 |
| 5047 | 5047 |
| 5048 void RecordWriteStub::InformIncrementalMarker(MacroAssembler* masm, Mode mode) { | 5048 void RecordWriteStub::InformIncrementalMarker(MacroAssembler* masm) { |
| 5049 regs_.SaveCallerSaveRegisters(masm, save_fp_regs_mode_); | 5049 regs_.SaveCallerSaveRegisters(masm, save_fp_regs_mode_); |
| 5050 int argument_count = 3; | 5050 int argument_count = 3; |
| 5051 __ PrepareCallCFunction(argument_count, regs_.scratch0()); | 5051 __ PrepareCallCFunction(argument_count, regs_.scratch0()); |
| 5052 Register address = | 5052 Register address = |
| 5053 a0.is(regs_.address()) ? regs_.scratch0() : regs_.address(); | 5053 a0.is(regs_.address()) ? regs_.scratch0() : regs_.address(); |
| 5054 ASSERT(!address.is(regs_.object())); | 5054 ASSERT(!address.is(regs_.object())); |
| 5055 ASSERT(!address.is(a0)); | 5055 ASSERT(!address.is(a0)); |
| 5056 __ Move(address, regs_.address()); | 5056 __ Move(address, regs_.address()); |
| 5057 __ Move(a0, regs_.object()); | 5057 __ Move(a0, regs_.object()); |
| 5058 __ Move(a1, address); | 5058 __ Move(a1, address); |
| 5059 __ li(a2, Operand(ExternalReference::isolate_address(masm->isolate()))); | 5059 __ li(a2, Operand(ExternalReference::isolate_address(masm->isolate()))); |
| 5060 | 5060 |
| 5061 AllowExternalCallThatCantCauseGC scope(masm); | 5061 AllowExternalCallThatCantCauseGC scope(masm); |
| 5062 if (mode == INCREMENTAL_COMPACTION) { | 5062 __ CallCFunction( |
| 5063 __ CallCFunction( | 5063 ExternalReference::incremental_marking_record_write_function( |
| 5064 ExternalReference::incremental_evacuation_record_write_function( | 5064 masm->isolate()), |
| 5065 masm->isolate()), | 5065 argument_count); |
| 5066 argument_count); | |
| 5067 } else { | |
| 5068 ASSERT(mode == INCREMENTAL); | |
| 5069 __ CallCFunction( | |
| 5070 ExternalReference::incremental_marking_record_write_function( | |
| 5071 masm->isolate()), | |
| 5072 argument_count); | |
| 5073 } | |
| 5074 regs_.RestoreCallerSaveRegisters(masm, save_fp_regs_mode_); | 5066 regs_.RestoreCallerSaveRegisters(masm, save_fp_regs_mode_); |
| 5075 } | 5067 } |
| 5076 | 5068 |
| 5077 | 5069 |
| 5078 void RecordWriteStub::CheckNeedsToInformIncrementalMarker( | 5070 void RecordWriteStub::CheckNeedsToInformIncrementalMarker( |
| 5079 MacroAssembler* masm, | 5071 MacroAssembler* masm, |
| 5080 OnNoNeedToInformIncrementalMarker on_no_need, | 5072 OnNoNeedToInformIncrementalMarker on_no_need, |
| 5081 Mode mode) { | 5073 Mode mode) { |
| 5082 Label on_black; | 5074 Label on_black; |
| 5083 Label need_incremental; | 5075 Label need_incremental; |
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| 5760 MemOperand(fp, 6 * kPointerSize), | 5752 MemOperand(fp, 6 * kPointerSize), |
| 5761 NULL); | 5753 NULL); |
| 5762 } | 5754 } |
| 5763 | 5755 |
| 5764 | 5756 |
| 5765 #undef __ | 5757 #undef __ |
| 5766 | 5758 |
| 5767 } } // namespace v8::internal | 5759 } } // namespace v8::internal |
| 5768 | 5760 |
| 5769 #endif // V8_TARGET_ARCH_MIPS | 5761 #endif // V8_TARGET_ARCH_MIPS |
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