test/compiler/intrinsics/mathexact/LoopDependentTest.java

Fri, 27 Sep 2013 08:39:19 +0200

author
rbackman
date
Fri, 27 Sep 2013 08:39:19 +0200
changeset 5791
c9ccd7b85f20
permissions
-rw-r--r--

8024924: Intrinsify java.lang.Math.addExact
Reviewed-by: kvn, twisti

     1 /*
     2  * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.
     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
     4  *
     5  * This code is free software; you can redistribute it and/or modify it
     6  * under the terms of the GNU General Public License version 2 only, as
     7  * published by the Free Software Foundation.
     8  *
     9  * This code is distributed in the hope that it will be useful, but WITHOUT
    10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    12  * version 2 for more details (a copy is included in the LICENSE file that
    13  * accompanied this code).
    14  *
    15  * You should have received a copy of the GNU General Public License version
    16  * 2 along with this work; if not, write to the Free Software Foundation,
    17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
    18  *
    19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
    20  * or visit www.oracle.com if you need additional information or have any
    21  * questions.
    22  */
    24 /*
    25  * @test
    26  * @bug 8024924
    27  * @summary Test non constant addExact
    28  * @compile LoopDependentTest.java Verify.java
    29  * @run main LoopDependentTest
    30  *
    31  */
    33 import java.lang.ArithmeticException;
    35 public class LoopDependentTest {
    36   public static java.util.Random rnd = new java.util.Random();
    38   public static void main(String[] args) {
    39     int rnd1 = rnd.nextInt(), rnd2 = rnd.nextInt();
    40     for (int i = 0; i < 50000; ++i) {
    41       Verify.verify(rnd1 + i, rnd2 + i);
    42       Verify.verify(rnd1 + i, rnd2 + (i & 0xff));
    43       Verify.verify(rnd1 - i, rnd2 - (i & 0xff));
    44       Verify.verify(rnd1 + i + 1, rnd2 + i + 2);
    45       Verify.verify(rnd1 + i * 2, rnd2 + i);
    46     }
    47   }
    48 }

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