2850   if (!UseTypeProfile || !TypeProfileCasts) return NULL;

  2850   if (!UseTypeProfile || !TypeProfileCasts) return NULL;

  2851 

  2851 

  2852   Deoptimization::DeoptReason reason = Deoptimization::reason_class_check(spec_klass != NULL);

  2852   Deoptimization::DeoptReason reason = Deoptimization::reason_class_check(spec_klass != NULL);

  2853 

  2853 

  2854   // Make sure we haven't already deoptimized from this tactic.

  2854   // Make sure we haven't already deoptimized from this tactic.

  2856     return NULL;

  2856     return NULL;

  2857 

  2857 

  2858   // (No, this isn't a call, but it's enough like a virtual call

  2858   // (No, this isn't a call, but it's enough like a virtual call

  2859   // to use the same ciMethod accessor to get the profile info...)

  2859   // to use the same ciMethod accessor to get the profile info...)

  2860   // If we have a speculative type use it instead of profiling (which

  2860   // If we have a speculative type use it instead of profiling (which

  2905   // type == NULL if profiling tells us this object is always null

  2905   // type == NULL if profiling tells us this object is always null

  2906   if (type != NULL) {

  2906   if (type != NULL) {

  2907     Deoptimization::DeoptReason class_reason = Deoptimization::Reason_speculate_class_check;

  2907     Deoptimization::DeoptReason class_reason = Deoptimization::Reason_speculate_class_check;

  2908     Deoptimization::DeoptReason null_reason = Deoptimization::Reason_speculate_null_check;

  2908     Deoptimization::DeoptReason null_reason = Deoptimization::Reason_speculate_null_check;

  2909 

  2909 

  2913       Node* not_null_obj = NULL;

  2912       Node* not_null_obj = NULL;

  2914       // not_null is true if we know the object is not null and

  2913       // not_null is true if we know the object is not null and

  2915       // there's no need for a null check

  2914       // there's no need for a null check

  2916       if (!not_null) {

  2915       if (!not_null) {

  2917         Node* null_ctl = top();

  2916         Node* null_ctl = top();

  2932       }

  2931       }

  2933       replace_in_map(not_null_obj, exact_obj);

  2932       replace_in_map(not_null_obj, exact_obj);

  2934       obj = exact_obj;

  2933       obj = exact_obj;

  2935     }

  2934     }

  2936   } else {

  2935   } else {

  2939       Node* exact_obj = null_assert(obj);

  2937       Node* exact_obj = null_assert(obj);

  2940       replace_in_map(obj, exact_obj);

  2938       replace_in_map(obj, exact_obj);

  2941       obj = exact_obj;

  2939       obj = exact_obj;

  2942     }

  2940     }

  2943   }

  2941   }