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comparison src/share/vm/opto/escape.cpp @ 20572:87f199a9c1b1

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8058825: EA: ConnectionGraph::split_unique_types does incorrect scalar replacement Reviewed-by: kvn
author vlivanov
date Mon, 29 Sep 2014 11:46:05 -0700
parents 166d744df0de
children 90297adbda9d
comparison
equal deleted inserted replaced
20571:1d6eb209432a 20572:87f199a9c1b1
2837 // (reflection allocation), the object can't be restored during 2837 // (reflection allocation), the object can't be restored during
2838 // deoptimization without precise type. 2838 // deoptimization without precise type.
2839 continue; 2839 continue;
2840 } 2840 }
2841 } 2841 }
2842
2843 const TypeOopPtr *t = igvn->type(n)->isa_oopptr();
2844 if (t == NULL)
2845 continue; // not a TypeOopPtr
2846 if (!t->klass_is_exact())
2847 continue; // not an unique type
2848
2842 if (alloc->is_Allocate()) { 2849 if (alloc->is_Allocate()) {
2843 // Set the scalar_replaceable flag for allocation 2850 // Set the scalar_replaceable flag for allocation
2844 // so it could be eliminated. 2851 // so it could be eliminated.
2845 alloc->as_Allocate()->_is_scalar_replaceable = true; 2852 alloc->as_Allocate()->_is_scalar_replaceable = true;
2846 } 2853 }
2855 // - non-escaping 2862 // - non-escaping
2856 // - eligible to be a unique type 2863 // - eligible to be a unique type
2857 // - not determined to be ineligible by escape analysis 2864 // - not determined to be ineligible by escape analysis
2858 set_map(alloc, n); 2865 set_map(alloc, n);
2859 set_map(n, alloc); 2866 set_map(n, alloc);
2860 const TypeOopPtr *t = igvn->type(n)->isa_oopptr(); 2867 const TypeOopPtr* tinst = t->cast_to_instance_id(ni);
2861 if (t == NULL)
2862 continue; // not a TypeOopPtr
2863 const TypeOopPtr* tinst = t->cast_to_exactness(true)->is_oopptr()->cast_to_instance_id(ni);
2864 igvn->hash_delete(n); 2868 igvn->hash_delete(n);
2865 igvn->set_type(n, tinst); 2869 igvn->set_type(n, tinst);
2866 n->raise_bottom_type(tinst); 2870 n->raise_bottom_type(tinst);
2867 igvn->hash_insert(n); 2871 igvn->hash_insert(n);
2868 record_for_optimizer(n); 2872 record_for_optimizer(n);