--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/compiler/8005033/Test8005033.java Wed Dec 19 14:44:00 2012 -0800
@@ -0,0 +1,50 @@
+/*
+ * Copyright 2012 SAP AG. All Rights Reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+/**
+ * @test
+ * @bug 8005033
+ * @summary On sparcv9, C2's intrinsic for Integer.bitCount(OV) returns wrong result if OV is the result of an operation with int overflow.
+ * @run main/othervm -Xcomp -XX:CompileOnly=Test8005033::testBitCount Test8005033
+ * @author Richard Reingruber richard DOT reingruber AT sap DOT com
+ */
+
+public class Test8005033 {
+ public static int MINUS_ONE = -1;
+
+ public static void main(String[] args) {
+ System.out.println("EXECUTING test.");
+ Integer.bitCount(1); // load class
+ int expectedBitCount = 0;
+ int calculatedBitCount = testBitCount();
+ if (expectedBitCount != calculatedBitCount) {
+ throw new InternalError("got " + calculatedBitCount + " but expected " + expectedBitCount);
+ }
+ System.out.println("SUCCESSFULLY passed test.");
+ }
+
+ // testBitCount will be compiled using the Integer.bitCount() intrinsic if possible
+ private static int testBitCount() {
+ return Integer.bitCount(MINUS_ONE+1); // -1 + 1 => int overflow
+ }
+}