1 /* 2 * Copyright (c) 2011, 2015, 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 25 #include "precompiled.hpp" 26 #include "ci/ciBaseObject.hpp" 27 #include "ci/ciUtilities.hpp" 28 #include "gc/shared/collectedHeap.inline.hpp" 29 30 // ------------------------------------------------------------------ 31 // ciBaseObject::set_ident 32 // 33 // Set the unique identity number of a ciBaseObject. 34 void ciBaseObject::set_ident(uint id) { 35 assert((_ident >> FLAG_BITS) == 0, "must only initialize once"); 36 assert( id < ((uint)1 << (BitsPerInt-FLAG_BITS)), "id too big"); 37 _ident = _ident + (id << FLAG_BITS); 38 } 39 40 // ------------------------------------------------------------------ 41 // ciBaseObject::ident 42 // 43 // Report the unique identity number of a ciBaseObject. 44 uint ciBaseObject::ident() { 45 uint id = _ident >> FLAG_BITS; 46 assert(id != 0, "must be initialized"); 47 return id; 48 }