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diff src/share/vm/memory/universe.cpp @ 1080:7c57aead6d3e

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6892658: C2 should optimize some stringbuilder patterns Reviewed-by: kvn, twisti
author never
date Thu, 12 Nov 2009 09:24:21 -0800
parents f334aec453a1
children 4ce7240d622c
line wrap: on
line diff
--- a/src/share/vm/memory/universe.cpp	Fri Nov 27 07:56:58 2009 -0800
+++ b/src/share/vm/memory/universe.cpp	Thu Nov 12 09:24:21 2009 -0800
@@ -67,6 +67,8 @@
 objArrayOop Universe::_the_empty_system_obj_array     = NULL;
 objArrayOop Universe::_the_empty_class_klass_array    = NULL;
 objArrayOop Universe::_the_array_interfaces_array     = NULL;
+oop Universe::_the_null_string                        = NULL;
+oop Universe::_the_min_jint_string                   = NULL;
 LatestMethodOopCache* Universe::_finalizer_register_cache = NULL;
 LatestMethodOopCache* Universe::_loader_addClass_cache    = NULL;
 ActiveMethodOopsCache* Universe::_reflect_invoke_cache    = NULL;
@@ -187,6 +189,8 @@
   f->do_oop((oop*)&_the_empty_system_obj_array);
   f->do_oop((oop*)&_the_empty_class_klass_array);
   f->do_oop((oop*)&_the_array_interfaces_array);
+  f->do_oop((oop*)&_the_null_string);
+  f->do_oop((oop*)&_the_min_jint_string);
   _finalizer_register_cache->oops_do(f);
   _loader_addClass_cache->oops_do(f);
   _reflect_invoke_cache->oops_do(f);
@@ -289,6 +293,9 @@
 
     klassOop ok = SystemDictionary::object_klass();
 
+    _the_null_string            = StringTable::intern("null", CHECK);
+    _the_min_jint_string       = StringTable::intern("-2147483648", CHECK);
+
     if (UseSharedSpaces) {
       // Verify shared interfaces array.
       assert(_the_array_interfaces_array->obj_at(0) ==