1 /* 2 * Copyright (c) 2015, 2017, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24 #ifndef SHARE_GC_Z_ZHASH_INLINE_HPP 25 #define SHARE_GC_Z_ZHASH_INLINE_HPP 26 27 #include "gc/z/zHash.hpp" 28 29 inline uint32_t ZHash::uint32_to_uint32(uint32_t key) { 30 key = ~key + (key << 15); 31 key = key ^ (key >> 12); 32 key = key + (key << 2); 33 key = key ^ (key >> 4); 34 key = key * 2057; 35 key = key ^ (key >> 16); 36 return key; 37 } 38 39 inline uint32_t ZHash::address_to_uint32(uintptr_t key) { 40 return uint32_to_uint32((uint32_t)(key >> 3)); 41 } 42 43 #endif // SHARE_GC_Z_ZHASH_INLINE_HPP