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8148047: Move the vtable length field to Klass

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Reviewed-by: cjplummer, twisti, coleenp, kbarrett
This commit is contained in:
Mikael Gerdin 2015-12-01 10:35:49 +01:00
parent 97e169ac77
commit 211dc93a85
32 changed files with 78 additions and 80 deletions
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10
hotspot/src/share/vm/oops/instanceKlass.hpp
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@ -178,6 +178,7 @@ class InstanceKlass: public Klass {
u2 _java_fields_count; // The number of declared Java fields
int _nonstatic_oop_map_size;// size in words of nonstatic oop map blocks
int _itable_len; // length of Java itable (in words)
// _is_marked_dependent can be set concurrently, thus cannot be part of the
// _misc_flags.
bool _is_marked_dependent; // used for marking during flushing and deoptimization
@ -211,8 +212,6 @@ class InstanceKlass: public Klass {
u2 _minor_version; // minor version number of class file
u2 _major_version; // major version number of class file
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)
OopMapCache* volatile _oop_map_cache; // OopMapCache for all methods in the klass (allocated lazily)
MemberNameTable* _member_names; // Member names
JNIid* _jni_ids; // First JNI identifier for static fields in this class
@ -311,10 +310,6 @@ class InstanceKlass: public Klass {
int static_oop_field_count() const { return (int)_static_oop_field_count; }
void set_static_oop_field_count(u2 size) { _static_oop_field_count = size; }
// Java vtable
int vtable_length() const { return _vtable_len; }
void set_vtable_length(int len) { _vtable_len = len; }
// Java itable
int itable_length() const { return _itable_len; }
void set_itable_length(int len) { _itable_len = len; }
@ -949,9 +944,6 @@ public:
virtual void collect_statistics(KlassSizeStats *sz) const;
#endif
static ByteSize vtable_start_offset() { return in_ByteSize(header_size() * wordSize); }
static ByteSize vtable_length_offset() { return byte_offset_of(InstanceKlass, _vtable_len); }
intptr_t* start_of_vtable() const { return (intptr_t*) ((address)this + in_bytes(vtable_start_offset())); }
intptr_t* start_of_itable() const { return start_of_vtable() + vtable_length(); }
int itable_offset_in_words() const { return start_of_itable() - (intptr_t*)this; }