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Issue 16631002: Separate Cell and PropertyCell spaces (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: Remove Mips changes Created 7 years, 6 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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717 // Implementation of RelocInfo 717 // Implementation of RelocInfo
718 718
719 719
720 #ifdef DEBUG 720 #ifdef DEBUG
721 bool RelocInfo::RequiresRelocation(const CodeDesc& desc) { 721 bool RelocInfo::RequiresRelocation(const CodeDesc& desc) {
722 // Ensure there are no code targets or embedded objects present in the 722 // Ensure there are no code targets or embedded objects present in the
723 // deoptimization entries, they would require relocation after code 723 // deoptimization entries, they would require relocation after code
724 // generation. 724 // generation.
725 int mode_mask = RelocInfo::kCodeTargetMask | 725 int mode_mask = RelocInfo::kCodeTargetMask |
726 RelocInfo::ModeMask(RelocInfo::EMBEDDED_OBJECT) | 726 RelocInfo::ModeMask(RelocInfo::EMBEDDED_OBJECT) |
727 RelocInfo::ModeMask(RelocInfo::GLOBAL_PROPERTY_CELL) | 727 RelocInfo::ModeMask(RelocInfo::CELL) |
728 RelocInfo::kApplyMask; 728 RelocInfo::kApplyMask;
729 RelocIterator it(desc, mode_mask); 729 RelocIterator it(desc, mode_mask);
730 return !it.done(); 730 return !it.done();
731 } 731 }
732 #endif 732 #endif
733 733
734 734
735 #ifdef ENABLE_DISASSEMBLER 735 #ifdef ENABLE_DISASSEMBLER
736 const char* RelocInfo::RelocModeName(RelocInfo::Mode rmode) { 736 const char* RelocInfo::RelocModeName(RelocInfo::Mode rmode) {
737 switch (rmode) { 737 switch (rmode) {
738 case RelocInfo::NONE32: 738 case RelocInfo::NONE32:
739 return "no reloc 32"; 739 return "no reloc 32";
740 case RelocInfo::NONE64: 740 case RelocInfo::NONE64:
741 return "no reloc 64"; 741 return "no reloc 64";
742 case RelocInfo::EMBEDDED_OBJECT: 742 case RelocInfo::EMBEDDED_OBJECT:
743 return "embedded object"; 743 return "embedded object";
744 case RelocInfo::CONSTRUCT_CALL: 744 case RelocInfo::CONSTRUCT_CALL:
745 return "code target (js construct call)"; 745 return "code target (js construct call)";
746 case RelocInfo::CODE_TARGET_CONTEXT: 746 case RelocInfo::CODE_TARGET_CONTEXT:
747 return "code target (context)"; 747 return "code target (context)";
748 case RelocInfo::DEBUG_BREAK: 748 case RelocInfo::DEBUG_BREAK:
749 #ifndef ENABLE_DEBUGGER_SUPPORT 749 #ifndef ENABLE_DEBUGGER_SUPPORT
750 UNREACHABLE(); 750 UNREACHABLE();
751 #endif 751 #endif
752 return "debug break"; 752 return "debug break";
753 case RelocInfo::CODE_TARGET: 753 case RelocInfo::CODE_TARGET:
754 return "code target"; 754 return "code target";
755 case RelocInfo::CODE_TARGET_WITH_ID: 755 case RelocInfo::CODE_TARGET_WITH_ID:
756 return "code target with id"; 756 return "code target with id";
757 case RelocInfo::GLOBAL_PROPERTY_CELL: 757 case RelocInfo::CELL:
758 return "global property cell"; 758 return "property cell";
759 case RelocInfo::RUNTIME_ENTRY: 759 case RelocInfo::RUNTIME_ENTRY:
760 return "runtime entry"; 760 return "runtime entry";
761 case RelocInfo::JS_RETURN: 761 case RelocInfo::JS_RETURN:
762 return "js return"; 762 return "js return";
763 case RelocInfo::COMMENT: 763 case RelocInfo::COMMENT:
764 return "comment"; 764 return "comment";
765 case RelocInfo::POSITION: 765 case RelocInfo::POSITION:
766 return "position"; 766 return "position";
767 case RelocInfo::STATEMENT_POSITION: 767 case RelocInfo::STATEMENT_POSITION:
768 return "statement position"; 768 return "statement position";
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823 } 823 }
824 #endif // ENABLE_DISASSEMBLER 824 #endif // ENABLE_DISASSEMBLER
825 825
826 826
827 #ifdef VERIFY_HEAP 827 #ifdef VERIFY_HEAP
828 void RelocInfo::Verify() { 828 void RelocInfo::Verify() {
829 switch (rmode_) { 829 switch (rmode_) {
830 case EMBEDDED_OBJECT: 830 case EMBEDDED_OBJECT:
831 Object::VerifyPointer(target_object()); 831 Object::VerifyPointer(target_object());
832 break; 832 break;
833 case GLOBAL_PROPERTY_CELL: 833 case CELL:
834 Object::VerifyPointer(target_cell()); 834 Object::VerifyPointer(target_cell());
835 break; 835 break;
836 case DEBUG_BREAK: 836 case DEBUG_BREAK:
837 #ifndef ENABLE_DEBUGGER_SUPPORT 837 #ifndef ENABLE_DEBUGGER_SUPPORT
838 UNREACHABLE(); 838 UNREACHABLE();
839 break; 839 break;
840 #endif 840 #endif
841 case CONSTRUCT_CALL: 841 case CONSTRUCT_CALL:
842 case CODE_TARGET_CONTEXT: 842 case CODE_TARGET_CONTEXT:
843 case CODE_TARGET_WITH_ID: 843 case CODE_TARGET_WITH_ID:
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1662 assembler_->RecordRelocInfo(RelocInfo::POSITION, state_.current_position); 1662 assembler_->RecordRelocInfo(RelocInfo::POSITION, state_.current_position);
1663 state_.written_position = state_.current_position; 1663 state_.written_position = state_.current_position;
1664 written = true; 1664 written = true;
1665 } 1665 }
1666 1666
1667 // Return whether something was written. 1667 // Return whether something was written.
1668 return written; 1668 return written;
1669 } 1669 }
1670 1670
1671 } } // namespace v8::internal 1671 } } // namespace v8::internal
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