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8204540: Automatic oop closure devirtualization

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Reviewed-by: kbarrett, eosterlund
This commit is contained in:
Stefan Karlsson 2018-05-26 06:59:49 +02:00
parent af4bf0927b
commit 11813888b8
101 changed files with 1024 additions and 1576 deletions
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54
src/hotspot/share/oops/objArrayKlass.hpp
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@ -34,6 +34,10 @@
class ObjArrayKlass : public ArrayKlass {
friend class VMStructs;
friend class JVMCIVMStructs;
public:
static const KlassID ID = ObjArrayKlassID;
private:
// If you add a new field that points to any metaspace object, you
// must add this field to ObjArrayKlass::metaspace_pointers_do().
@ -127,63 +131,39 @@ class ObjArrayKlass : public ArrayKlass {
#endif
// Oop fields (and metadata) iterators
// [nv = true] Use non-virtual calls to do_oop_nv.
// [nv = false] Use virtual calls to do_oop.
//
// The ObjArrayKlass iterators also visits the Object's klass.
private:
// Iterate over oop elements and metadata.
template <bool nv, typename OopClosureType>
template <typename T, typename OopClosureType>
inline void oop_oop_iterate(oop obj, OopClosureType* closure);
// Iterate over oop elements and metadata.
template <typename T, typename OopClosureType>
inline void oop_oop_iterate_reverse(oop obj, OopClosureType* closure);
// Iterate over oop elements within mr, and metadata.
template <bool nv, typename OopClosureType>
template <typename T, typename OopClosureType>
inline void oop_oop_iterate_bounded(oop obj, OopClosureType* closure, MemRegion mr);
// Iterate over oop elements with indices within [start, end), and metadata.
template <bool nv, class OopClosureType>
inline void oop_oop_iterate_range(oop obj, OopClosureType* closure, int start, int end);
// Iterate over oop elements within [start, end), and metadata.
// Specialized for [T = oop] or [T = narrowOop].
template <bool nv, typename T, class OopClosureType>
inline void oop_oop_iterate_range_specialized(objArrayOop a, OopClosureType* closure, int start, int end);
template <typename T, class OopClosureType>
inline void oop_oop_iterate_range(objArrayOop a, OopClosureType* closure, int start, int end);
public:
// Iterate over all oop elements.
template <bool nv, class OopClosureType>
template <typename T, class OopClosureType>
inline void oop_oop_iterate_elements(objArrayOop a, OopClosureType* closure);
private:
// Iterate over all oop elements.
// Specialized for [T = oop] or [T = narrowOop].
template <bool nv, typename T, class OopClosureType>
inline void oop_oop_iterate_elements_specialized(objArrayOop a, OopClosureType* closure);
// Iterate over all oop elements with indices within mr.
template <bool nv, class OopClosureType>
template <typename T, class OopClosureType>
inline void oop_oop_iterate_elements_bounded(objArrayOop a, OopClosureType* closure, void* low, void* high);
template <typename T, class OopClosureType>
inline void oop_oop_iterate_elements_bounded(objArrayOop a, OopClosureType* closure, MemRegion mr);
// Iterate over oop elements within [low, high)..
// Specialized for [T = oop] or [T = narrowOop].
template <bool nv, typename T, class OopClosureType>
inline void oop_oop_iterate_elements_specialized_bounded(objArrayOop a, OopClosureType* closure, void* low, void* high);
public:
ALL_OOP_OOP_ITERATE_CLOSURES_1(OOP_OOP_ITERATE_DECL)
ALL_OOP_OOP_ITERATE_CLOSURES_2(OOP_OOP_ITERATE_DECL)
ALL_OOP_OOP_ITERATE_CLOSURES_1(OOP_OOP_ITERATE_DECL_RANGE)
ALL_OOP_OOP_ITERATE_CLOSURES_2(OOP_OOP_ITERATE_DECL_RANGE)
#if INCLUDE_OOP_OOP_ITERATE_BACKWARDS
ALL_OOP_OOP_ITERATE_CLOSURES_1(OOP_OOP_ITERATE_DECL_NO_BACKWARDS)
ALL_OOP_OOP_ITERATE_CLOSURES_2(OOP_OOP_ITERATE_DECL_NO_BACKWARDS)
#endif
// JVM support
jint compute_modifier_flags(TRAPS) const;