Mercurial > hg > truffle
diff test/compiler/6863155/Test6863155.java @ 897:52898b0c43e9
6863155: Server compiler generates incorrect code (x86, long, bitshift, bitmask)
Summary: Code compiled with server compiler generates an incorrect result.
Reviewed-by: cfang, never, kvn
author | twisti |
---|---|
date | Tue, 28 Jul 2009 09:02:30 +0200 |
parents | |
children | c18cbe5936b8 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/test/compiler/6863155/Test6863155.java Tue Jul 28 09:02:30 2009 +0200 @@ -0,0 +1,43 @@ +/* + * Copyright 2009 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, + * CA 95054 USA or visit www.sun.com if you need additional information or + * have any questions. + */ + +/** + * @test + * @bug 6863155 + * @summary Server compiler generates incorrect code (x86, long, bitshift, bitmask) + * + * @run main/othervm -Xcomp -XX:CompileOnly=Test6863155.test Test6863155 + */ + +public class Test6863155 { + private static long test(byte b) { + return b << 24 & 0xff000000L; + } + + public static void main(String... args) { + long result = test((byte) 0xc2); + long expected = 0x00000000c2000000L; + if (result != expected) + throw new InternalError(Long.toHexString(result) + " != " + Long.toHexString(expected)); + } +}