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8187443: Forest Consolidation: Move files to unified layout

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Reviewed-by: darcy, ihse
This commit is contained in:
Erik Joelsson 2017-09-12 19:03:39 +02:00
parent 270fe13182
commit 3789983e89
56923 changed files with 3 additions and 15727 deletions
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94
hotspot/src/share/vm/gc/shared/barrierSet.inline.hpp
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/*
* 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
* 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_SHARED_BARRIERSET_INLINE_HPP
#define SHARE_VM_GC_SHARED_BARRIERSET_INLINE_HPP
#include "gc/shared/barrierSet.hpp"
#include "gc/shared/cardTableModRefBS.inline.hpp"
#include "utilities/align.hpp"
// Inline functions of BarrierSet, which de-virtualize certain
// performance-critical calls when the barrier is the most common
// card-table kind.
inline bool BarrierSet::devirtualize_reference_writes() const {
switch (kind()) {
case CardTableForRS:
case CardTableExtension:
return true;
default:
return false;
}
}
template <class T> void BarrierSet::write_ref_field_pre(T* field, oop new_val) {
if (devirtualize_reference_writes()) {
barrier_set_cast<CardTableModRefBS>(this)->inline_write_ref_field_pre(field, new_val);
} else {
write_ref_field_pre_work(field, new_val);
}
}
void BarrierSet::write_ref_field(void* field, oop new_val, bool release) {
if (devirtualize_reference_writes()) {
barrier_set_cast<CardTableModRefBS>(this)->inline_write_ref_field(field, new_val, release);
} else {
write_ref_field_work(field, new_val, release);
}
}
// count is number of array elements being written
void BarrierSet::write_ref_array(HeapWord* start, size_t count) {
assert(count <= (size_t)max_intx, "count too large");
HeapWord* end = (HeapWord*)((char*)start + (count*heapOopSize));
// In the case of compressed oops, start and end may potentially be misaligned;
// so we need to conservatively align the first downward (this is not
// strictly necessary for current uses, but a case of good hygiene and,
// if you will, aesthetics) and the second upward (this is essential for
// current uses) to a HeapWord boundary, so we mark all cards overlapping
// this write. If this evolves in the future to calling a
// logging barrier of narrow oop granularity, like the pre-barrier for G1
// (mentioned here merely by way of example), we will need to change this
// interface, so it is "exactly precise" (if i may be allowed the adverbial
// redundancy for emphasis) and does not include narrow oop slots not
// included in the original write interval.
HeapWord* aligned_start = align_down(start, HeapWordSize);
HeapWord* aligned_end = align_up (end, HeapWordSize);
// If compressed oops were not being used, these should already be aligned
assert(UseCompressedOops || (aligned_start == start && aligned_end == end),
"Expected heap word alignment of start and end");
write_ref_array_work(MemRegion(aligned_start, aligned_end));
}
inline void BarrierSet::write_region(MemRegion mr) {
if (devirtualize_reference_writes()) {
barrier_set_cast<CardTableModRefBS>(this)->inline_write_region(mr);
} else {
write_region_work(mr);
}
}
#endif // SHARE_VM_GC_SHARED_BARRIERSET_INLINE_HPP