aoqi@0: /*
aoqi@0:  * Copyright 2012 SAP AG.  All Rights Reserved.
aoqi@0:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0:  *
aoqi@0:  * This code is free software; you can redistribute it and/or modify it
aoqi@0:  * under the terms of the GNU General Public License version 2 only, as
aoqi@0:  * published by the Free Software Foundation.
aoqi@0:  *
aoqi@0:  * This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
aoqi@0:  * version 2 for more details (a copy is included in the LICENSE file that
aoqi@0:  * accompanied this code).
aoqi@0:  *
aoqi@0:  * You should have received a copy of the GNU General Public License version
aoqi@0:  * 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0:  *
aoqi@0:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0:  * or visit www.oracle.com if you need additional information or have any
aoqi@0:  * questions.
aoqi@0:  */
aoqi@0: 
aoqi@0: /**
aoqi@0:  * @test
aoqi@0:  * @bug 8005033
aoqi@0:  * @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:  * @run main/othervm -Xcomp -XX:CompileOnly=Test8005033::testBitCount Test8005033
aoqi@0:  * @author Richard Reingruber richard DOT reingruber AT sap DOT com
aoqi@0:  */
aoqi@0: 
aoqi@0: public class Test8005033 {
aoqi@0:     public static int MINUS_ONE = -1;
aoqi@0: 
aoqi@0:     public static void main(String[] args) {
aoqi@0:         System.out.println("EXECUTING test.");
aoqi@0:         Integer.bitCount(1);   // load class
aoqi@0:         int expectedBitCount = 0;
aoqi@0:         int calculatedBitCount = testBitCount();
aoqi@0:         if (expectedBitCount != calculatedBitCount) {
aoqi@0:             throw new InternalError("got " + calculatedBitCount + " but expected " + expectedBitCount);
aoqi@0:         }
aoqi@0:         System.out.println("SUCCESSFULLY passed test.");
aoqi@0:     }
aoqi@0: 
aoqi@0:     // testBitCount will be compiled using the Integer.bitCount() intrinsic if possible
aoqi@0:     private static int testBitCount() {
aoqi@0:         return Integer.bitCount(MINUS_ONE+1);   // -1 + 1 => int overflow
aoqi@0:     }
aoqi@0: }