--- a/hotspot/src/share/vm/gc/shared/memset_with_concurrent_readers.cpp	Thu Sep 15 17:15:55 2016 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,104 +0,0 @@
-/*
- * Copyright (c) 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.
- *
- */
-
-#include "precompiled.hpp"
-
-#include <string.h>
-#include "gc/shared/memset_with_concurrent_readers.hpp"
-#include "utilities/debug.hpp"
-#include "utilities/globalDefinitions.hpp"
-#include "utilities/macros.hpp"
-#include "utilities/ostream.hpp"
-
-#if INCLUDE_ALL_GCS
-
-// Unit test
-#ifndef PRODUCT
-
-static unsigned line_byte(const char* line, size_t i) {
-  return unsigned(line[i]) & 0xFF;
-}
-
-// Verify memset_with_concurrent_readers mimics memset.
-// We don't attempt to verify the concurrent reader case.
-void test_memset_with_concurrent_readers() {
-  const size_t chunk_size = 8 * BytesPerWord;
-  const unsigned chunk_count = 4;
-  const size_t block_size = (chunk_count + 4) * chunk_size;
-  char block[block_size];
-  char clear_block[block_size];
-  char set_block[block_size];
-
-  // block format:
-  // 0: unused leading chunk
-  // 1: chunk written from start index to end of chunk
-  // ... nchunks fully written chunks
-  // N: chunk written from start of chunk to end index
-  // N+1: unused trailing chunk
-
-  const int clear_value = 0;
-  const int set_value = 0xAC;
-
-  memset(clear_block, clear_value, block_size);
-  memset(set_block, set_value, block_size);
-
-  for (unsigned nchunks = 0; nchunks <= chunk_count; ++nchunks) {
-    for (size_t start = 1; start <= chunk_size; ++start) {
-      for (size_t end = 0; end <= chunk_size; ++end) {
-        size_t set_start = chunk_size + start;
-        size_t set_end = (2 + nchunks) * chunk_size + end;
-        size_t set_size = set_end - set_start;
-
-        memset(block, clear_value, block_size);
-        memset_with_concurrent_readers(&block[set_start], set_value, set_size);
-        bool head_clear = !memcmp(clear_block, block, set_start);
-        bool middle_set = !memcmp(set_block, block + set_start, set_size);
-        bool tail_clear = !memcmp(clear_block, block + set_end, block_size - set_end);
-        if (!(head_clear && middle_set && tail_clear)) {
-          tty->print_cr("*** memset_with_concurrent_readers failed: "
-                        "set start " SIZE_FORMAT ", set end " SIZE_FORMAT,
-                        set_start, set_end);
-          for (unsigned chunk = 0; chunk < (block_size / chunk_size); ++chunk) {
-            for (unsigned line = 0; line < (chunk_size / BytesPerWord); ++line) {
-              const char* lp = &block[chunk * chunk_size + line * BytesPerWord];
-              tty->print_cr("%d,%d: %2x %2x  %2x %2x  %2x %2x  %2x %2x",
-                            chunk, line,
-                            line_byte(lp, 0), line_byte(lp, 1),
-                            line_byte(lp, 2), line_byte(lp, 3),
-                            line_byte(lp, 4), line_byte(lp, 5),
-                            line_byte(lp, 6), line_byte(lp, 7));
-            }
-          }
-          assert(head_clear, "leading byte not clear");
-          assert(middle_set, "memset byte not set");
-          assert(tail_clear, "trailing bye not clear");
-        }
-      }
-    }
-  }
-}
-
-#endif // end unit test
-
-#endif // INCLUDE_ALL_GCS