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comparison src/share/vm/opto/node.hpp @ 85:f3b3fe64f59f

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6692301: 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 Tue, 15 Apr 2008 10:49:32 -0700
parents 99269dbf4ba8
children ec73d88d5b43
comparison
equal deleted inserted replaced
84:6e085831cad7 85:f3b3fe64f59f
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