--- a/src/hotspot/share/gc/g1/g1CardLiveData.hpp	Mon Apr 16 11:48:41 2018 +0200
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,112 +0,0 @@
-/*
- * Copyright (c) 2016, 2018, 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_G1_G1CARDLIVEDATA_HPP
-#define SHARE_VM_GC_G1_G1CARDLIVEDATA_HPP
-
-#include "gc/g1/g1CollectedHeap.hpp"
-#include "utilities/bitMap.hpp"
-#include "utilities/globalDefinitions.hpp"
-
-class G1CollectedHeap;
-class G1CMBitMap;
-class WorkGang;
-
-// Information about object liveness on the Java heap on a "card" basis.
-// Can be used for various purposes, like as remembered set for completely
-// coarsened remembered sets, scrubbing remembered sets or estimating liveness.
-// This information is created as part of the concurrent marking cycle.
-class G1CardLiveData {
-  friend class G1CardLiveDataHelper;
-  friend class G1VerifyCardLiveDataTask;
-private:
-  typedef BitMap::bm_word_t bm_word_t;
-  // Store some additional information about the covered area to be able to test.
-  size_t _max_capacity;
-  size_t _cards_per_region;
-
-  // Regions may be reclaimed while concurrently creating live data (e.g. due to humongous
-  // eager reclaim). This results in wrong live data for these regions at the end.
-  // So we need to somehow detect these regions, and during live data finalization completely
-  // recreate their information.
-  // This _gc_timestamp_at_create tracks the global timestamp when live data creation
-  // has started. Any regions with a higher time stamp have been cleared after that
-  // point in time, and need re-finalization.
-  // Unsynchronized access to this variable is okay, since this value is only set during a
-  // concurrent phase, and read only at the Cleanup safepoint. I.e. there is always
-  // full memory synchronization inbetween.
-  uint _gc_timestamp_at_create;
-  // The per-card liveness bitmap.
-  bm_word_t* _live_cards;
-  size_t _live_cards_size_in_bits;
-  // The per-region liveness bitmap.
-  bm_word_t* _live_regions;
-  size_t _live_regions_size_in_bits;
-  // The bits in this bitmap contain for every card whether it contains
-  // at least part of at least one live object.
-  BitMapView live_cards_bm() const { return BitMapView(_live_cards, _live_cards_size_in_bits); }
-  // The bits in this bitmap indicate that a given region contains some live objects.
-  BitMapView live_regions_bm() const { return BitMapView(_live_regions, _live_regions_size_in_bits); }
-
-  // Allocate a "large" bitmap from virtual memory with the given size in bits.
-  bm_word_t* allocate_large_bitmap(size_t size_in_bits);
-  void free_large_bitmap(bm_word_t* map, size_t size_in_bits);
-
-  inline BitMapView live_card_bitmap(uint region);
-
-  inline bool is_card_live_at(BitMap::idx_t idx) const;
-
-  size_t live_region_bitmap_size_in_bits() const;
-  size_t live_card_bitmap_size_in_bits() const;
-public:
-  uint gc_timestamp_at_create() const { return _gc_timestamp_at_create; }
-
-  inline bool is_region_live(uint region) const;
-
-  inline void remove_nonlive_cards(uint region, BitMap* bm);
-  inline void remove_nonlive_regions(BitMap* bm);
-
-  G1CardLiveData();
-  ~G1CardLiveData();
-
-  void initialize(size_t max_capacity, uint num_max_regions);
-  void pretouch();
-
-  // Create the initial liveness data based on the marking result from the bottom
-  // to the ntams of every region in the heap and the marks in the given bitmap.
-  void create(WorkGang* workers, G1CMBitMap* mark_bitmap);
-  // Finalize the liveness data.
-  void finalize(WorkGang* workers, G1CMBitMap* mark_bitmap);
-
-  // Verify that the liveness count data created concurrently matches one created
-  // during this safepoint.
-  void verify(WorkGang* workers, G1CMBitMap* actual_bitmap);
-  // Clear all data structures, prepare for next processing.
-  void clear(WorkGang* workers);
-
-  void verify_is_clear() PRODUCT_RETURN;
-};
-
-#endif /* SHARE_VM_GC_G1_G1CARDLIVEDATA_HPP */
-