Mercurial > jdk8-mips64-public > hotspot / annotate
test/compiler/8005033/Test8005033.java@dbb05f6d93c4 (annotated)
test/compiler/8005033/Test8005033.java
Mon, 28 Jul 2014 15:06:38 -0700
- author
- fzhinkin
- date
- Mon, 28 Jul 2014 15:06:38 -0700
- changeset 6997
- dbb05f6d93c4
- parent 0
- f90c822e73f8
- 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
| aoqi@0 | 1 | /* |
| aoqi@0 | 2 | * Copyright 2012 SAP AG. 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 | * @test |
| aoqi@0 | 26 | * @bug 8005033 |
| aoqi@0 | 27 | * @summary On sparcv9, C2's intrinsic for Integer.bitCount(OV) returns wrong result if OV is the result of an operation with int overflow. |
| aoqi@0 | 28 | * @run main/othervm -Xcomp -XX:CompileOnly=Test8005033::testBitCount Test8005033 |
| aoqi@0 | 29 | * @author Richard Reingruber richard DOT reingruber AT sap DOT com |
| aoqi@0 | 30 | */ |
| aoqi@0 | 31 | |
| aoqi@0 | 32 | public class Test8005033 { |
| aoqi@0 | 33 | public static int MINUS_ONE = -1; |
| aoqi@0 | 34 | |
| aoqi@0 | 35 | public static void main(String[] args) { |
| aoqi@0 | 36 | System.out.println("EXECUTING test."); |
| aoqi@0 | 37 | Integer.bitCount(1); // load class |
| aoqi@0 | 38 | int expectedBitCount = 0; |
| aoqi@0 | 39 | int calculatedBitCount = testBitCount(); |
| aoqi@0 | 40 | if (expectedBitCount != calculatedBitCount) { |
| aoqi@0 | 41 | throw new InternalError("got " + calculatedBitCount + " but expected " + expectedBitCount); |
| aoqi@0 | 42 | } |
| aoqi@0 | 43 | System.out.println("SUCCESSFULLY passed test."); |
| aoqi@0 | 44 | } |
| aoqi@0 | 45 | |
| aoqi@0 | 46 | // testBitCount will be compiled using the Integer.bitCount() intrinsic if possible |
| aoqi@0 | 47 | private static int testBitCount() { |
| aoqi@0 | 48 | return Integer.bitCount(MINUS_ONE+1); // -1 + 1 => int overflow |
| aoqi@0 | 49 | } |
| aoqi@0 | 50 | } |
