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comparison src/share/vm/opto/node.hpp @ 17877:17b2fbdb6637

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8038297: Avoid placing CTI immediately following cbcond instruction on T4 Summary: Insert a nop between cbcond and CTI Reviewed-by: kvn, twisti
author iveresov
date Thu, 10 Apr 2014 23:15:13 -0700
parents 62c54fcc0a35
children 52b4284cb496
comparison
equal deleted inserted replaced
17875:cb1b723cbca8 17877:17b2fbdb6637
643 }; 643 };
644 #undef DEFINE_CLASS_ID 644 #undef DEFINE_CLASS_ID
645 645
646 // Flags are sorted by usage frequency. 646 // Flags are sorted by usage frequency.
647 enum NodeFlags { 647 enum NodeFlags {
648 Flag_is_Copy = 0x01, // should be first bit to avoid shift 648 Flag_is_Copy = 0x01, // should be first bit to avoid shift
649 Flag_rematerialize = Flag_is_Copy << 1, 649 Flag_rematerialize = Flag_is_Copy << 1,
650 Flag_needs_anti_dependence_check = Flag_rematerialize << 1, 650 Flag_needs_anti_dependence_check = Flag_rematerialize << 1,
651 Flag_is_macro = Flag_needs_anti_dependence_check << 1, 651 Flag_is_macro = Flag_needs_anti_dependence_check << 1,
652 Flag_is_Con = Flag_is_macro << 1, 652 Flag_is_Con = Flag_is_macro << 1,
653 Flag_is_cisc_alternate = Flag_is_Con << 1, 653 Flag_is_cisc_alternate = Flag_is_Con << 1,
654 Flag_is_dead_loop_safe = Flag_is_cisc_alternate << 1, 654 Flag_is_dead_loop_safe = Flag_is_cisc_alternate << 1,
655 Flag_may_be_short_branch = Flag_is_dead_loop_safe << 1, 655 Flag_may_be_short_branch = Flag_is_dead_loop_safe << 1,
656 Flag_avoid_back_to_back = Flag_may_be_short_branch << 1, 656 Flag_avoid_back_to_back_before = Flag_may_be_short_branch << 1,
657 Flag_has_call = Flag_avoid_back_to_back << 1, 657 Flag_avoid_back_to_back_after = Flag_avoid_back_to_back_before << 1,
658 Flag_is_expensive = Flag_has_call << 1, 658 Flag_has_call = Flag_avoid_back_to_back_after << 1,
659 Flag_is_expensive = Flag_has_call << 1,
659 _max_flags = (Flag_is_expensive << 1) - 1 // allow flags combination 660 _max_flags = (Flag_is_expensive << 1) - 1 // allow flags combination
660 }; 661 };
661 662
662 private: 663 private:
663 jushort _class_id; 664 jushort _class_id;