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src/share/vm/ci/ciBaseObject.cpp@710a3c8b516e (annotated)

src/share/vm/ci/ciBaseObject.cpp

Tue, 08 Aug 2017 15:57:29 +0800

author

aoqi

date

Tue, 08 Aug 2017 15:57:29 +0800

changeset 6876

710a3c8b516e

parent 0

f90c822e73f8

permissions

-rw-r--r--

merge

aoqi@0	1	/*
aoqi@0	2	* Copyright (c) 2011, 2012, Oracle and/or its affiliates. All rights reserved.
aoqi@0	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0	4	*
aoqi@0	5	* This code is free software; you can redistribute it and/or modify it
aoqi@0	6	* under the terms of the GNU General Public License version 2 only, as
aoqi@0	7	* published by the Free Software Foundation.
aoqi@0	8	*
aoqi@0	9	* This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
aoqi@0	12	* version 2 for more details (a copy is included in the LICENSE file that
aoqi@0	13	* accompanied this code).
aoqi@0	14	*
aoqi@0	15	* You should have received a copy of the GNU General Public License version
aoqi@0	16	* 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0	17	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0	18	*
aoqi@0	19	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0	20	* or visit www.oracle.com if you need additional information or have any
aoqi@0	21	* questions.
aoqi@0	22	*
aoqi@0	23	*/
aoqi@0	24
aoqi@0	25	#include "precompiled.hpp"
aoqi@0	26	#include "ci/ciBaseObject.hpp"
aoqi@0	27	#include "ci/ciUtilities.hpp"
aoqi@0	28	#include "gc_interface/collectedHeap.inline.hpp"
aoqi@0	29	#include "oops/oop.inline2.hpp"
aoqi@0	30
aoqi@0	31	// ------------------------------------------------------------------
aoqi@0	32	// ciBaseObject::set_ident
aoqi@0	33	//
aoqi@0	34	// Set the unique identity number of a ciBaseObject.
aoqi@0	35	void ciBaseObject::set_ident(uint id) {
aoqi@0	36	assert((_ident >> FLAG_BITS) == 0, "must only initialize once");
aoqi@0	37	assert( id < ((uint)1 << (BitsPerInt-FLAG_BITS)), "id too big");
aoqi@0	38	_ident = _ident + (id << FLAG_BITS);
aoqi@0	39	}
aoqi@0	40
aoqi@0	41	// ------------------------------------------------------------------
aoqi@0	42	// ciBaseObject::ident
aoqi@0	43	//
aoqi@0	44	// Report the unique identity number of a ciBaseObject.
aoqi@0	45	uint ciBaseObject::ident() {
aoqi@0	46	uint id = _ident >> FLAG_BITS;
aoqi@0	47	assert(id != 0, "must be initialized");
aoqi@0	48	return id;
aoqi@0	49	}