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diff src/share/vm/opto/type.hpp @ 989:148e5441d916

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6863023: need non-perm oops in code cache for JSR 292 Summary: Make a special root-list for those few nmethods which might contain non-perm oops. Reviewed-by: twisti, kvn, never, jmasa, ysr
author jrose
date Tue, 15 Sep 2009 21:53:47 -0700
parents c7e94e8fff43
children 6a8ccac44f41
line wrap: on
line diff
--- a/src/share/vm/opto/type.hpp	Tue Sep 15 11:09:34 2009 -0700
+++ b/src/share/vm/opto/type.hpp	Tue Sep 15 21:53:47 2009 -0700
@@ -711,7 +711,10 @@
     return make_from_klass_common(klass, false, false);
   }
   // Creates a singleton type given an object.
-  static const TypeOopPtr* make_from_constant(ciObject* o);
+  // If the object cannot be rendered as a constant,
+  // may return a non-singleton type.
+  // If require_constant, produce a NULL if a singleton is not possible.
+  static const TypeOopPtr* make_from_constant(ciObject* o, bool require_constant = false);
 
   // Make a generic (unclassed) pointer to an oop.
   static const TypeOopPtr* make(PTR ptr, int offset, int instance_id = InstanceBot);