Mercurial > hg > truffle
diff src/share/vm/oops/instanceRefKlass.cpp @ 1706:9d7a8ab3736b
6962589: remove breadth first scanning code from parallel gc
Summary: Remove the breadth-first copying order from ParallelScavenge and use depth-first by default.
Reviewed-by: jcoomes, ysr, johnc
author | tonyp |
---|---|
date | Thu, 22 Jul 2010 10:27:41 -0400 |
parents | c18cbe5936b8 |
children | f95d63e2154a |
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--- a/src/share/vm/oops/instanceRefKlass.cpp Mon Aug 02 12:51:43 2010 -0700 +++ b/src/share/vm/oops/instanceRefKlass.cpp Thu Jul 22 10:27:41 2010 -0400 @@ -273,41 +273,8 @@ #ifndef SERIALGC template <class T> -void specialized_oop_copy_contents(instanceRefKlass *ref, - PSPromotionManager* pm, oop obj) { - assert(!pm->depth_first(), "invariant"); - T* referent_addr = (T*)java_lang_ref_Reference::referent_addr(obj); - if (PSScavenge::should_scavenge(referent_addr)) { - ReferenceProcessor* rp = PSScavenge::reference_processor(); - if (rp->discover_reference(obj, ref->reference_type())) { - // reference already enqueued, referent and next will be traversed later - ref->instanceKlass::oop_copy_contents(pm, obj); - return; - } else { - // treat referent as normal oop - pm->claim_or_forward_breadth(referent_addr); - } - } - // treat next as normal oop - T* next_addr = (T*)java_lang_ref_Reference::next_addr(obj); - if (PSScavenge::should_scavenge(next_addr)) { - pm->claim_or_forward_breadth(next_addr); - } - ref->instanceKlass::oop_copy_contents(pm, obj); -} - -void instanceRefKlass::oop_copy_contents(PSPromotionManager* pm, oop obj) { - if (UseCompressedOops) { - specialized_oop_copy_contents<narrowOop>(this, pm, obj); - } else { - specialized_oop_copy_contents<oop>(this, pm, obj); - } -} - -template <class T> void specialized_oop_push_contents(instanceRefKlass *ref, PSPromotionManager* pm, oop obj) { - assert(pm->depth_first(), "invariant"); T* referent_addr = (T*)java_lang_ref_Reference::referent_addr(obj); if (PSScavenge::should_scavenge(referent_addr)) { ReferenceProcessor* rp = PSScavenge::reference_processor();