hotspot/src/share/vm/ci/ciBaseObject.cpp
changeset 13728 882756847a04
child 29081 c61eb4914428
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/src/share/vm/ci/ciBaseObject.cpp	Sat Sep 01 13:25:18 2012 -0400
@@ -0,0 +1,49 @@
+/*
+ * Copyright (c) 2011, 2012, 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 "ci/ciBaseObject.hpp"
+#include "ci/ciUtilities.hpp"
+#include "gc_interface/collectedHeap.inline.hpp"
+#include "oops/oop.inline2.hpp"
+
+// ------------------------------------------------------------------
+// ciBaseObject::set_ident
+//
+// Set the unique identity number of a ciBaseObject.
+void ciBaseObject::set_ident(uint id) {
+  assert((_ident >> FLAG_BITS) == 0, "must only initialize once");
+  assert( id < ((uint)1 << (BitsPerInt-FLAG_BITS)), "id too big");
+  _ident = _ident + (id << FLAG_BITS);
+}
+
+// ------------------------------------------------------------------
+// ciBaseObject::ident
+//
+// Report the unique identity number of a ciBaseObject.
+uint ciBaseObject::ident() {
+  uint id = _ident >> FLAG_BITS;
+  assert(id != 0, "must be initialized");
+  return id;
+}