| /* |
| * Copyright (c) 2018, Oracle and/or its affiliates. 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 4093292 |
| * @summary Test for correct code generation by the JIT |
| */ |
| public class ShiftTest { |
| static final int w = 32; |
| |
| private static void doTest(long ct) throws Exception { |
| int S22 = 0xc46cf7c2; |
| int S23 = 0xcfda9162; |
| int S24 = 0xd029aa4c; |
| int S25 = 0x17cf1801; |
| int A = (int)(ct & 0xffffffffL); |
| int B = (int)(ct >>> 32); |
| int x, y; |
| x = B - S25; |
| y = A & (w-1); |
| B = ((x >>> y) | (x << (w-y))) ^ A; |
| x = A - S24; |
| y = B & (w-1); |
| A = ((x >>> y) | (x << (w-y))) ^ B; |
| x = B - S23; |
| y = A & (w-1); |
| B = ((x >>> y) | (x << (w-y))) ^ A; |
| x = A - S22; |
| y = B & (w-1); |
| A = ((x >>> y) | (x << (w-y))) ^ B; |
| String astr = Integer.toHexString(A); |
| String bstr = Integer.toHexString(B); |
| System.err.println("A = " + astr + " B = " + bstr); |
| if ((!astr.equals("dcb38144")) || |
| (!bstr.equals("1916de73"))) { |
| throw new RuntimeException("Unexpected shift results!"); |
| } |
| System.err.println("Test passed"); |
| } |
| |
| public static void main(String[] args) throws Exception { |
| doTest(0x496def29b74be041L); |
| } |
| } |