Mercurial > hg > truffle
annotate test/compiler/8000805/Test8000805.java @ 14649:f6301b007a16
6498581: ThreadInterruptTest3 produces wrong output on Windows
Summary: There is race condition between os::interrupt and os::is_interrupted on Windows. In JVM_Sleep(Thread.sleep), check if thread gets interrupted, it may see interrupted but not really interrupted so cause spurious waking up (early return from sleep). Fix by checking if interrupt event really gets set thus prevent false return. For intrinsic of _isInterrupted, on Windows, go fastpath only on bit not set.
Reviewed-by: acorn, kvn
Contributed-by: david.holmes@oracle.com, yumin.qi@oracle.com
| author | minqi |
|---|---|
| date | Wed, 26 Feb 2014 15:20:41 -0800 |
| parents | de6a9e811145 |
| children | 4ca6dc0799b6 |
| rev | line source |
|---|---|
| 6891 | 1 /* |
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8029233: Update copyright year to match last edit in jdk8 hotspot repository for 2013
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2 * Copyright (c) 2012, 2013, Oracle and/or its affiliates. All rights reserved. |
| 6891 | 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 * @test | |
| 26 * @bug 8000805 | |
| 27 * @summary JMM issue: short loads are non-atomic | |
| 28 * | |
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7115383: TEST_BUG: some jtreg tests fail because they explicitly specify -server option
collins
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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 |
| 6891 | 30 */ |
| 31 | |
| 32 public class Test8000805 { | |
| 33 static long loadS2LmaskFF (short[] sa) { return sa[0] & 0xFF; } | |
| 34 static long loadS2LmaskFF_1 (short[] sa) { return sa[0] & 0xFF; } | |
| 35 | |
| 36 static long loadS2Lmask16 (short[] sa) { return sa[0] & 0xFFFE; } | |
| 37 static long loadS2Lmask16_1 (short[] sa) { return sa[0] & 0xFFFE; } | |
| 38 | |
| 39 static long loadS2Lmask13 (short[] sa) { return sa[0] & 0x0FFF; } | |
| 40 static long loadS2Lmask13_1 (short[] sa) { return sa[0] & 0x0FFF; } | |
| 41 | |
| 42 static int loadUS_signExt (char[] ca) { return (ca[0] << 16) >> 16; } | |
| 43 static int loadUS_signExt_1 (char[] ca) { return (ca[0] << 16) >> 16; } | |
| 44 | |
| 45 static long loadB2L_mask8 (byte[] ba) { return ba[0] & 0x55; } | |
| 46 static long loadB2L_mask8_1 (byte[] ba) { return ba[0] & 0x55; } | |
| 47 | |
| 48 public static void main(String[] args) { | |
| 49 for (int i = Byte.MIN_VALUE; i < Byte.MAX_VALUE; i++) { | |
| 50 byte[] ba = new byte[] { (byte) i}; | |
| 51 | |
| 52 { long v1 = loadB2L_mask8(ba); | |
| 53 long v2 = loadB2L_mask8_1(ba); | |
| 54 if (v1 != v2) | |
| 55 throw new InternalError(String.format("loadB2L_mask8 failed: %x != %x", v1, v2)); } | |
| 56 } | |
| 57 | |
| 58 for (int i = Short.MIN_VALUE; i < Short.MAX_VALUE; i++) { | |
| 59 short[] sa = new short[] { (short)i }; | |
| 60 char[] ca = new char[] { (char)i }; | |
| 61 | |
| 62 { long v1 = loadS2LmaskFF(sa); | |
| 63 long v2 = loadS2LmaskFF_1(sa); | |
| 64 if (v1 != v2) | |
| 65 throw new InternalError(String.format("loadS2LmaskFF failed: %x != %x", v1, v2)); } | |
| 66 | |
| 67 { long v1 = loadS2Lmask16(sa); | |
| 68 long v2 = loadS2Lmask16_1(sa); | |
| 69 if (v1 != v2) | |
| 70 throw new InternalError(String.format("loadS2Lmask16 failed: %x != %x", v1, v2)); } | |
| 71 | |
| 72 { long v1 = loadS2Lmask13(sa); | |
| 73 long v2 = loadS2Lmask13_1(sa); | |
| 74 if (v1 != v2) | |
| 75 throw new InternalError(String.format("loadS2Lmask13 failed: %x != %x", v1, v2)); } | |
| 76 | |
| 77 { int v1 = loadUS_signExt(ca); | |
| 78 int v2 = loadUS_signExt_1(ca); | |
| 79 if (v1 != v2) | |
| 80 throw new InternalError(String.format("loadUS_signExt failed: %x != %x", v1, v2)); } | |
| 81 } | |
| 82 | |
| 83 System.out.println("TEST PASSED."); | |
| 84 } | |
| 85 } |