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comparison src/share/vm/opto/node.hpp @ 119:d1a5218d7eaf

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6686791: Side effect in NumberFormat tests with -server -Xcomp Summary: Optimization in CmpPNode::sub() removed the valid compare instruction because of false positive answer from detect_dominating_control(). Reviewed-by: jrose, sgoldman
author kvn
date Wed, 16 Apr 2008 19:19:48 -0700
parents ba764ed4b6f2
children ec73d88d5b43 72f4a668df19
comparison
equal deleted inserted replaced
118:fb75a7673531 119:d1a5218d7eaf
815 // Some nodes have specific Ideal subgraph transformations only if they are 815 // Some nodes have specific Ideal subgraph transformations only if they are
816 // unique users of specific nodes. Such nodes should be put on IGVN worklist 816 // unique users of specific nodes. Such nodes should be put on IGVN worklist
817 // for the transformations to happen. 817 // for the transformations to happen.
818 bool has_special_unique_user() const; 818 bool has_special_unique_user() const;
819 819
820 // Skip Proj and CatchProj nodes chains. Check for Null and Top.
821 Node* find_exact_control(Node* ctrl);
822
823 // Check if 'this' node dominates or equal to 'sub'.
824 bool dominates(Node* sub, Node_List &nlist);
825
820 protected: 826 protected:
821 bool remove_dead_region(PhaseGVN *phase, bool can_reshape); 827 bool remove_dead_region(PhaseGVN *phase, bool can_reshape);
822 public: 828 public:
823 829
824 // Idealize graph, using DU info. Done after constant propagation 830 // Idealize graph, using DU info. Done after constant propagation