4129N/A/*
4129N/A * Copyright 2012 SAP AG. All Rights Reserved.
4129N/A * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4129N/A *
4129N/A * This code is free software; you can redistribute it and/or modify it
4129N/A * under the terms of the GNU General Public License version 2 only, as
4129N/A * published by the Free Software Foundation.
4129N/A *
4129N/A * This code is distributed in the hope that it will be useful, but WITHOUT
4129N/A * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
4129N/A * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
4129N/A * version 2 for more details (a copy is included in the LICENSE file that
4129N/A * accompanied this code).
4129N/A *
4129N/A * You should have received a copy of the GNU General Public License version
4129N/A * 2 along with this work; if not, write to the Free Software Foundation,
4129N/A * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
4129N/A *
4129N/A * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
4129N/A * or visit www.oracle.com if you need additional information or have any
4129N/A * questions.
4129N/A */
4129N/A
4129N/A/**
4129N/A * @test
4129N/A * @bug 8005033
4129N/A * @summary On sparcv9, C2's intrinsic for Integer.bitCount(OV) returns wrong result if OV is the result of an operation with int overflow.
4129N/A * @run main/othervm -Xcomp -XX:CompileOnly=Test8005033::testBitCount Test8005033
4129N/A * @author Richard Reingruber richard DOT reingruber AT sap DOT com
4129N/A */
4129N/A
4129N/Apublic class Test8005033 {
4129N/A public static int MINUS_ONE = -1;
4129N/A
4129N/A public static void main(String[] args) {
4129N/A System.out.println("EXECUTING test.");
4129N/A Integer.bitCount(1); // load class
4129N/A int expectedBitCount = 0;
4129N/A int calculatedBitCount = testBitCount();
4129N/A if (expectedBitCount != calculatedBitCount) {
4129N/A throw new InternalError("got " + calculatedBitCount + " but expected " + expectedBitCount);
4129N/A }
4129N/A System.out.println("SUCCESSFULLY passed test.");
4129N/A }
4129N/A
4129N/A // testBitCount will be compiled using the Integer.bitCount() intrinsic if possible
4129N/A private static int testBitCount() {
4129N/A return Integer.bitCount(MINUS_ONE+1); // -1 + 1 => int overflow
4129N/A }
4129N/A}