Mercurial > hg > graal-compiler
view test/compiler/6863155/Test6863155.java @ 1087:23b9a8d315fc
6902701: G1: protect debugging code related to 6898948 with a debug flag
Summary: Protected stats dump with a new develop flag; other than for the dump, reconciled product and non-product behaviour in face of the error.
Reviewed-by: tonyp
author | ysr |
---|---|
date | Thu, 19 Nov 2009 10:19:19 -0800 |
parents | 52898b0c43e9 |
children | c18cbe5936b8 |
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/* * 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)); } }