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test/compiler/8000805/Test8000805.java@dbb05f6d93c4 (annotated)

test/compiler/8000805/Test8000805.java

Mon, 28 Jul 2014 15:06:38 -0700

author

fzhinkin

date

Mon, 28 Jul 2014 15:06:38 -0700

changeset 6997

dbb05f6d93c4

parent 6198

55fb97c4c58d

child 6876

710a3c8b516e

permissions

-rw-r--r--

8051344: JVM crashed in Compile::start() during method parsing w/ UseRTMDeopt turned on
Summary: call rtm_deopt() only if there were no compilation bailouts before.
Reviewed-by: kvn

vlivanov@4202	1	/*
mikael@6198	2	* Copyright (c) 2012, 2013, Oracle and/or its affiliates. All rights reserved.
vlivanov@4202	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
vlivanov@4202	4	*
vlivanov@4202	5	* This code is free software; you can redistribute it and/or modify it
vlivanov@4202	6	* under the terms of the GNU General Public License version 2 only, as
vlivanov@4202	7	* published by the Free Software Foundation.
vlivanov@4202	8	*
vlivanov@4202	9	* This code is distributed in the hope that it will be useful, but WITHOUT
vlivanov@4202	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
vlivanov@4202	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
vlivanov@4202	12	* version 2 for more details (a copy is included in the LICENSE file that
vlivanov@4202	13	* accompanied this code).
vlivanov@4202	14	*
vlivanov@4202	15	* You should have received a copy of the GNU General Public License version
vlivanov@4202	16	* 2 along with this work; if not, write to the Free Software Foundation,
vlivanov@4202	17	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
vlivanov@4202	18	*
vlivanov@4202	19	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
vlivanov@4202	20	* or visit www.oracle.com if you need additional information or have any
vlivanov@4202	21	* questions.
vlivanov@4202	22	*/
vlivanov@4202	23
vlivanov@4202	24	/**
vlivanov@4202	25	* @test
vlivanov@4202	26	* @bug 8000805
vlivanov@4202	27	* @summary JMM issue: short loads are non-atomic
vlivanov@4202	28	*
collins@4684	29	* @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:-TieredCompilation -Xcomp -XX:+PrintCompilation -XX:CompileOnly=Test8000805.loadS2LmaskFF,Test8000805.loadS2Lmask16,Test8000805.loadS2Lmask13,Test8000805.loadUS_signExt,Test8000805.loadB2L_mask8 Test8000805
vlivanov@4202	30	*/
vlivanov@4202	31
vlivanov@4202	32	public class Test8000805 {
vlivanov@4202	33	static long loadS2LmaskFF (short[] sa) { return sa[0] & 0xFF; }
vlivanov@4202	34	static long loadS2LmaskFF_1 (short[] sa) { return sa[0] & 0xFF; }
vlivanov@4202	35
vlivanov@4202	36	static long loadS2Lmask16 (short[] sa) { return sa[0] & 0xFFFE; }
vlivanov@4202	37	static long loadS2Lmask16_1 (short[] sa) { return sa[0] & 0xFFFE; }
vlivanov@4202	38
vlivanov@4202	39	static long loadS2Lmask13 (short[] sa) { return sa[0] & 0x0FFF; }
vlivanov@4202	40	static long loadS2Lmask13_1 (short[] sa) { return sa[0] & 0x0FFF; }
vlivanov@4202	41
vlivanov@4202	42	static int loadUS_signExt (char[] ca) { return (ca[0] << 16) >> 16; }
vlivanov@4202	43	static int loadUS_signExt_1 (char[] ca) { return (ca[0] << 16) >> 16; }
vlivanov@4202	44
vlivanov@4202	45	static long loadB2L_mask8 (byte[] ba) { return ba[0] & 0x55; }
vlivanov@4202	46	static long loadB2L_mask8_1 (byte[] ba) { return ba[0] & 0x55; }
vlivanov@4202	47
vlivanov@4202	48	public static void main(String[] args) {
vlivanov@4202	49	for (int i = Byte.MIN_VALUE; i < Byte.MAX_VALUE; i++) {
vlivanov@4202	50	byte[] ba = new byte[] { (byte) i};
vlivanov@4202	51
vlivanov@4202	52	{ long v1 = loadB2L_mask8(ba);
vlivanov@4202	53	long v2 = loadB2L_mask8_1(ba);
vlivanov@4202	54	if (v1 != v2)
vlivanov@4202	55	throw new InternalError(String.format("loadB2L_mask8 failed: %x != %x", v1, v2)); }
vlivanov@4202	56	}
vlivanov@4202	57
vlivanov@4202	58	for (int i = Short.MIN_VALUE; i < Short.MAX_VALUE; i++) {
vlivanov@4202	59	short[] sa = new short[] { (short)i };
vlivanov@4202	60	char[] ca = new char[] { (char)i };
vlivanov@4202	61
vlivanov@4202	62	{ long v1 = loadS2LmaskFF(sa);
vlivanov@4202	63	long v2 = loadS2LmaskFF_1(sa);
vlivanov@4202	64	if (v1 != v2)
vlivanov@4202	65	throw new InternalError(String.format("loadS2LmaskFF failed: %x != %x", v1, v2)); }
vlivanov@4202	66
vlivanov@4202	67	{ long v1 = loadS2Lmask16(sa);
vlivanov@4202	68	long v2 = loadS2Lmask16_1(sa);
vlivanov@4202	69	if (v1 != v2)
vlivanov@4202	70	throw new InternalError(String.format("loadS2Lmask16 failed: %x != %x", v1, v2)); }
vlivanov@4202	71
vlivanov@4202	72	{ long v1 = loadS2Lmask13(sa);
vlivanov@4202	73	long v2 = loadS2Lmask13_1(sa);
vlivanov@4202	74	if (v1 != v2)
vlivanov@4202	75	throw new InternalError(String.format("loadS2Lmask13 failed: %x != %x", v1, v2)); }
vlivanov@4202	76
vlivanov@4202	77	{ int v1 = loadUS_signExt(ca);
vlivanov@4202	78	int v2 = loadUS_signExt_1(ca);
vlivanov@4202	79	if (v1 != v2)
vlivanov@4202	80	throw new InternalError(String.format("loadUS_signExt failed: %x != %x", v1, v2)); }
vlivanov@4202	81	}
vlivanov@4202	82
vlivanov@4202	83	System.out.println("TEST PASSED.");
vlivanov@4202	84	}
vlivanov@4202	85	}