--- /dev/null 2018-11-30 10:10:44.238550338 +0100 +++ new/src/hotspot/share/gc/shenandoah/shenandoahBrooksPointer.inline.hpp 2018-11-30 21:09:05.171850233 +0100 @@ -0,0 +1,65 @@ +/* + * Copyright (c) 2015, 2018, Red Hat, Inc. All rights reserved. + * + * This code is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 only, as + * published by the Free Software Foundation. + * + * This code is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * version 2 for more details (a copy is included in the LICENSE file that + * accompanied this code). + * + * You should have received a copy of the GNU General Public License version + * 2 along with this work; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. + * + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA + * or visit www.oracle.com if you need additional information or have any + * questions. + * + */ + +#ifndef SHARE_VM_GC_SHENANDOAH_SHENANDOAHBROOKSPOINTER_INLINE_HPP +#define SHARE_VM_GC_SHENANDOAH_SHENANDOAHBROOKSPOINTER_INLINE_HPP + +#include "gc/shenandoah/shenandoahAsserts.hpp" +#include "gc/shenandoah/shenandoahBrooksPointer.hpp" +#include "runtime/atomic.hpp" + +inline HeapWord** ShenandoahBrooksPointer::brooks_ptr_addr(oop obj) { + return (HeapWord**)((HeapWord*) obj + word_offset()); +} + +inline void ShenandoahBrooksPointer::initialize(oop obj) { + shenandoah_assert_in_heap(NULL, obj); + *brooks_ptr_addr(obj) = (HeapWord*) obj; +} + +inline void ShenandoahBrooksPointer::set_raw(oop obj, HeapWord* update) { + shenandoah_assert_in_heap(NULL, obj); + *brooks_ptr_addr(obj) = update; +} + +inline HeapWord* ShenandoahBrooksPointer::get_raw(oop obj) { + shenandoah_assert_in_heap(NULL, obj); + return *brooks_ptr_addr(obj); +} + +inline HeapWord* ShenandoahBrooksPointer::get_raw_unchecked(oop obj) { + return *brooks_ptr_addr(obj); +} + +inline oop ShenandoahBrooksPointer::forwardee(oop obj) { + shenandoah_assert_correct(NULL, obj); + return oop(*brooks_ptr_addr(obj)); +} + +inline oop ShenandoahBrooksPointer::try_update_forwardee(oop obj, oop update) { + oop result = (oop) Atomic::cmpxchg(update, (oop*)brooks_ptr_addr(obj), obj); + shenandoah_assert_correct_except(NULL, obj, !oopDesc::equals_raw(result, obj)); + return result; +} + +#endif // SHARE_VM_GC_SHENANDOAH_SHENANDOAHBROOKSPOINTER_INLINE_HPP