Mercurial > hg > truffle
diff src/share/vm/oops/instanceKlass.hpp @ 4899:a79cb7c55012
7132690: InstanceKlass:_reference_type should be u1 type
Summary: Change InstanceKlass::_reference_type to u1 type.
Reviewed-by: dholmes, coleenp, acorn
Contributed-by: Jiangli Zhou <jiangli.zhou@oracle.com>
| author | jiangli |
|---|---|
| date | Wed, 25 Jan 2012 17:40:51 -0500 |
| parents | 8f8b94305aff |
| children | b7b8b6d2f97d |
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--- a/src/share/vm/oops/instanceKlass.hpp Fri Jan 20 17:07:33 2012 -0800 +++ b/src/share/vm/oops/instanceKlass.hpp Wed Jan 25 17:40:51 2012 -0500 @@ -240,7 +240,6 @@ Thread* _init_thread; // Pointer to current thread doing initialization (to handle recusive initialization) int _vtable_len; // length of Java vtable (in words) int _itable_len; // length of Java itable (in words) - ReferenceType _reference_type; // reference type OopMapCache* volatile _oop_map_cache; // OopMapCache for all methods in the klass (allocated lazily) JNIid* _jni_ids; // First JNI identifier for static fields in this class jmethodID* _methods_jmethod_ids; // jmethodIDs corresponding to method_idnum, or NULL if none @@ -265,6 +264,8 @@ // _idnum_allocated_count. u1 _init_state; // state of class + u1 _reference_type; // reference type + // embedded Java vtable follows here // embedded Java itables follows here // embedded static fields follows here @@ -407,8 +408,11 @@ void eager_initialize(Thread *thread); // reference type - ReferenceType reference_type() const { return _reference_type; } - void set_reference_type(ReferenceType t) { _reference_type = t; } + ReferenceType reference_type() const { return (ReferenceType)_reference_type; } + void set_reference_type(ReferenceType t) { + assert(t == (u1)t, "overflow"); + _reference_type = (u1)t; + } static ByteSize reference_type_offset() { return in_ByteSize(sizeof(klassOopDesc) + offset_of(instanceKlass, _reference_type)); }