636 DEFINE_CLASS_ID(BoxLock, Node, 10)
637 DEFINE_CLASS_ID(Add, Node, 11)
638 DEFINE_CLASS_ID(Mul, Node, 12)
639 DEFINE_CLASS_ID(Vector, Node, 13)
640 DEFINE_CLASS_ID(ClearArray, Node, 14)
641
642 _max_classes = ClassMask_ClearArray
643 };
644 #undef DEFINE_CLASS_ID
645
646 // Flags are sorted by usage frequency.
647 enum NodeFlags {
648 Flag_is_Copy = 0x01, // should be first bit to avoid shift
649 Flag_rematerialize = Flag_is_Copy << 1,
650 Flag_needs_anti_dependence_check = Flag_rematerialize << 1,
651 Flag_is_macro = Flag_needs_anti_dependence_check << 1,
652 Flag_is_Con = Flag_is_macro << 1,
653 Flag_is_cisc_alternate = Flag_is_Con << 1,
654 Flag_is_dead_loop_safe = Flag_is_cisc_alternate << 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,
657 Flag_has_call = Flag_avoid_back_to_back << 1,
658 Flag_is_expensive = Flag_has_call << 1,
659 _max_flags = (Flag_is_expensive << 1) - 1 // allow flags combination
660 };
661
662 private:
663 jushort _class_id;
664 jushort _flags;
665
666 protected:
667 // These methods should be called from constructors only.
668 void init_class_id(jushort c) {
669 assert(c <= _max_classes, "invalid node class");
670 _class_id = c; // cast out const
671 }
672 void init_flags(jushort fl) {
673 assert(fl <= _max_flags, "invalid node flag");
674 _flags |= fl;
675 }
676 void clear_flag(jushort fl) {
677 assert(fl <= _max_flags, "invalid node flag");
|
636 DEFINE_CLASS_ID(BoxLock, Node, 10)
637 DEFINE_CLASS_ID(Add, Node, 11)
638 DEFINE_CLASS_ID(Mul, Node, 12)
639 DEFINE_CLASS_ID(Vector, Node, 13)
640 DEFINE_CLASS_ID(ClearArray, Node, 14)
641
642 _max_classes = ClassMask_ClearArray
643 };
644 #undef DEFINE_CLASS_ID
645
646 // Flags are sorted by usage frequency.
647 enum NodeFlags {
648 Flag_is_Copy = 0x01, // should be first bit to avoid shift
649 Flag_rematerialize = Flag_is_Copy << 1,
650 Flag_needs_anti_dependence_check = Flag_rematerialize << 1,
651 Flag_is_macro = Flag_needs_anti_dependence_check << 1,
652 Flag_is_Con = Flag_is_macro << 1,
653 Flag_is_cisc_alternate = Flag_is_Con << 1,
654 Flag_is_dead_loop_safe = Flag_is_cisc_alternate << 1,
655 Flag_may_be_short_branch = Flag_is_dead_loop_safe << 1,
656 Flag_avoid_back_to_back_before = Flag_may_be_short_branch << 1,
657 Flag_avoid_back_to_back_after = Flag_avoid_back_to_back_before << 1,
658 Flag_has_call = Flag_avoid_back_to_back_after << 1,
659 Flag_is_expensive = Flag_has_call << 1,
660 _max_flags = (Flag_is_expensive << 1) - 1 // allow flags combination
661 };
662
663 private:
664 jushort _class_id;
665 jushort _flags;
666
667 protected:
668 // These methods should be called from constructors only.
669 void init_class_id(jushort c) {
670 assert(c <= _max_classes, "invalid node class");
671 _class_id = c; // cast out const
672 }
673 void init_flags(jushort fl) {
674 assert(fl <= _max_flags, "invalid node flag");
675 _flags |= fl;
676 }
677 void clear_flag(jushort fl) {
678 assert(fl <= _max_flags, "invalid node flag");
|