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8203028: Simplify reference processing in light of JDK-8175797

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Removed special handling of Reference.next

Reviewed-by: tschatzl, sjohanss, mchung
This commit is contained in:
Kim Barrett 2018-05-26 03:11:50 -04:00
parent ace1b8a4c9
commit 6c20824cda
9 changed files with 197 additions and 210 deletions
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7
src/hotspot/share/gc/parallel/psParallelCompact.cpp
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@ -3081,13 +3081,10 @@ void InstanceClassLoaderKlass::oop_pc_update_pointers(oop obj, ParCompactionMana
#ifdef ASSERT
template <class T> static void trace_reference_gc(const char *s, oop obj,
T* referent_addr,
T* next_addr,
T* discovered_addr) {
log_develop_trace(gc, ref)("%s obj " PTR_FORMAT, s, p2i(obj));
log_develop_trace(gc, ref)(" referent_addr/* " PTR_FORMAT " / " PTR_FORMAT,
p2i(referent_addr), referent_addr ? p2i((oop)RawAccess<>::oop_load(referent_addr)) : NULL);
log_develop_trace(gc, ref)(" next_addr/* " PTR_FORMAT " / " PTR_FORMAT,
p2i(next_addr), next_addr ? p2i((oop)RawAccess<>::oop_load(next_addr)) : NULL);
log_develop_trace(gc, ref)(" discovered_addr/* " PTR_FORMAT " / " PTR_FORMAT,
p2i(discovered_addr), discovered_addr ? p2i((oop)RawAccess<>::oop_load(discovered_addr)) : NULL);
}
@ -3097,12 +3094,10 @@ template <class T>
static void oop_pc_update_pointers_specialized(oop obj, ParCompactionManager* cm) {
T* referent_addr = (T*)java_lang_ref_Reference::referent_addr_raw(obj);
PSParallelCompact::adjust_pointer(referent_addr, cm);
T* next_addr = (T*)java_lang_ref_Reference::next_addr_raw(obj);
PSParallelCompact::adjust_pointer(next_addr, cm);
T* discovered_addr = (T*)java_lang_ref_Reference::discovered_addr_raw(obj);
PSParallelCompact::adjust_pointer(discovered_addr, cm);
debug_only(trace_reference_gc("InstanceRefKlass::oop_update_ptrs", obj,
referent_addr, next_addr, discovered_addr);)
referent_addr, discovered_addr);)
}
void InstanceRefKlass::oop_pc_update_pointers(oop obj, ParCompactionManager* cm) {