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comparison src/share/vm/opto/phaseX.cpp @ 1826:56601ef83436

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6916062: assert(_inserts <= _insert_limit,"hash table overflow") in NodeHash::hash_insert Summary: Missing check for not empty worklist when puting memory node back on worklist and expecting address type update. Reviewed-by: never
author kvn
date Thu, 30 Sep 2010 18:31:45 -0700
parents 6027dddc26c6
children f95d63e2154a
comparison
equal deleted inserted replaced
1825:80c9354976b0 1826:56601ef83436
842 _verify_window[i] = NULL; 842 _verify_window[i] = NULL;
843 } 843 }
844 } 844 }
845 #endif 845 #endif
846 846
847 #ifdef ASSERT
848 Node* prev = NULL;
849 uint rep_cnt = 0;
850 #endif
851 uint loop_count = 0;
852
847 // Pull from worklist; transform node; 853 // Pull from worklist; transform node;
848 // If node has changed: update edge info and put uses on worklist. 854 // If node has changed: update edge info and put uses on worklist.
849 while( _worklist.size() ) { 855 while( _worklist.size() ) {
850 Node *n = _worklist.pop(); 856 Node *n = _worklist.pop();
857 if (++loop_count >= K * C->unique()) {
858 debug_only(n->dump(4);)
859 assert(false, "infinite loop in PhaseIterGVN::optimize");
860 C->record_method_not_compilable("infinite loop in PhaseIterGVN::optimize");
861 return;
862 }
863 #ifdef ASSERT
864 if (n == prev) {
865 if (++rep_cnt > 3) {
866 n->dump(4);
867 assert(false, "loop in Ideal transformation");
868 }
869 } else {
870 rep_cnt = 0;
871 }
872 prev = n;
873 #endif
851 if (TraceIterativeGVN && Verbose) { 874 if (TraceIterativeGVN && Verbose) {
852 tty->print(" Pop "); 875 tty->print(" Pop ");
853 NOT_PRODUCT( n->dump(); ) 876 NOT_PRODUCT( n->dump(); )
854 debug_only(if( (num_processed++ % 100) == 0 ) _worklist.print_set();) 877 debug_only(if( (num_processed++ % 100) == 0 ) _worklist.print_set();)
855 } 878 }