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8069016: Add BarrierSet downcast support

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Add FakeRttiSupport utility and use to provide barrier_set_cast.

Reviewed-by: jmasa, sangheki
This commit is contained in:
Kim Barrett 2015-02-27 19:52:48 -05:00
parent 1426bc9dc1
commit 40d3986051
32 changed files with 289 additions and 131 deletions
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6
hotspot/src/share/vm/gc_implementation/g1/concurrentMark.cpp
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@ -1,5 +1,5 @@
/*
* Copyright (c) 2001, 2014, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2001, 2015, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@ -1440,7 +1440,7 @@ public:
CMCountDataClosureBase(G1CollectedHeap* g1h,
BitMap* region_bm, BitMap* card_bm):
_g1h(g1h), _cm(g1h->concurrent_mark()),
_ct_bs((CardTableModRefBS*) (g1h->barrier_set())),
_ct_bs(barrier_set_cast<CardTableModRefBS>(g1h->barrier_set())),
_region_bm(region_bm), _card_bm(card_bm) { }
};
@ -3111,7 +3111,7 @@ class AggregateCountDataHRClosure: public HeapRegionClosure {
BitMap* cm_card_bm,
uint max_worker_id) :
_g1h(g1h), _cm(g1h->concurrent_mark()),
_ct_bs((CardTableModRefBS*) (g1h->barrier_set())),
_ct_bs(barrier_set_cast<CardTableModRefBS>(g1h->barrier_set())),
_cm_card_bm(cm_card_bm), _max_worker_id(max_worker_id) { }
bool doHeapRegion(HeapRegion* hr) {