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src/share/vm/utilities/accessFlags.cpp@4b2838704fd5 (annotated)

src/share/vm/utilities/accessFlags.cpp

Fri, 16 Aug 2013 14:11:40 -0700

author

kvn

date

Fri, 16 Aug 2013 14:11:40 -0700

changeset 5543

4b2838704fd5

parent 4562

8d9fc28831cc

child 6461

bdd155477289

permissions

-rw-r--r--

8021898: Broken JIT compiler optimization for loop unswitching
Summary: fix method clone_projs() to clone all related MachProj nodes.
Reviewed-by: roland, adlertz

duke@435	1	/*
dcubed@4562	2	* Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved.
duke@435	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@435	4	*
duke@435	5	* This code is free software; you can redistribute it and/or modify it
duke@435	6	* under the terms of the GNU General Public License version 2 only, as
duke@435	7	* published by the Free Software Foundation.
duke@435	8	*
duke@435	9	* This code is distributed in the hope that it will be useful, but WITHOUT
duke@435	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@435	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
duke@435	12	* version 2 for more details (a copy is included in the LICENSE file that
duke@435	13	* accompanied this code).
duke@435	14	*
duke@435	15	* You should have received a copy of the GNU General Public License version
duke@435	16	* 2 along with this work; if not, write to the Free Software Foundation,
duke@435	17	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@435	18	*
trims@1907	19	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
trims@1907	20	* or visit www.oracle.com if you need additional information or have any
trims@1907	21	* questions.
duke@435	22	*
duke@435	23	*/
duke@435	24
stefank@2314	25	#include "precompiled.hpp"
stefank@2314	26	#include "oops/oop.inline.hpp"
stefank@2314	27	#include "utilities/accessFlags.hpp"
stefank@2314	28	#ifdef TARGET_OS_FAMILY_linux
stefank@2314	29	# include "os_linux.inline.hpp"
stefank@2314	30	#endif
stefank@2314	31	#ifdef TARGET_OS_FAMILY_solaris
stefank@2314	32	# include "os_solaris.inline.hpp"
stefank@2314	33	#endif
stefank@2314	34	#ifdef TARGET_OS_FAMILY_windows
stefank@2314	35	# include "os_windows.inline.hpp"
stefank@2314	36	#endif
never@3156	37	#ifdef TARGET_OS_FAMILY_bsd
never@3156	38	# include "os_bsd.inline.hpp"
never@3156	39	#endif
duke@435	40
duke@435	41
duke@435	42	void AccessFlags::atomic_set_bits(jint bits) {
duke@435	43	// Atomically update the flags with the bits given
duke@435	44	jint old_flags, new_flags, f;
duke@435	45	do {
duke@435	46	old_flags = _flags;
duke@435	47	new_flags = old_flags | bits;
duke@435	48	f = Atomic::cmpxchg(new_flags, &_flags, old_flags);
duke@435	49	} while(f != old_flags);
duke@435	50	}
duke@435	51
duke@435	52	void AccessFlags::atomic_clear_bits(jint bits) {
duke@435	53	// Atomically update the flags with the bits given
duke@435	54	jint old_flags, new_flags, f;
duke@435	55	do {
duke@435	56	old_flags = _flags;
duke@435	57	new_flags = old_flags & ~bits;
duke@435	58	f = Atomic::cmpxchg(new_flags, &_flags, old_flags);
duke@435	59	} while(f != old_flags);
duke@435	60	}
duke@435	61
dcubed@4562	62	#if !defined(PRODUCT) || INCLUDE_JVMTI
duke@435	63
duke@435	64	void AccessFlags::print_on(outputStream* st) const {
duke@435	65	if (is_public ()) st->print("public " );
duke@435	66	if (is_private ()) st->print("private " );
duke@435	67	if (is_protected ()) st->print("protected " );
duke@435	68	if (is_static ()) st->print("static " );
duke@435	69	if (is_final ()) st->print("final " );
duke@435	70	if (is_synchronized()) st->print("synchronized ");
duke@435	71	if (is_volatile ()) st->print("volatile " );
duke@435	72	if (is_transient ()) st->print("transient " );
duke@435	73	if (is_native ()) st->print("native " );
duke@435	74	if (is_interface ()) st->print("interface " );
duke@435	75	if (is_abstract ()) st->print("abstract " );
duke@435	76	if (is_strict ()) st->print("strict " );
duke@435	77	if (is_synthetic ()) st->print("synthetic " );
duke@435	78	if (is_old ()) st->print("{old} " );
duke@435	79	if (is_obsolete ()) st->print("{obsolete} " );
coleenp@4037	80	if (on_stack ()) st->print("{on_stack} " );
duke@435	81	}
duke@435	82
dcubed@4562	83	#endif // !PRODUCT || INCLUDE_JVMTI
duke@435	84
duke@435	85	void accessFlags_init() {
duke@435	86	assert(sizeof(AccessFlags) == sizeof(jint), "just checking size of flags");
duke@435	87	}