jdk8-mips64-public/hotspot: test/compiler/loopopts/superword/TestNegBaseOffset.java@b290489738b8

8202948: C2: assert(init_offset >= 0) failed: positive offset from object start
Summary: convert the assert into compilation check which will skip superword optimization
Reviewed-by: roland, thartmann

     1 /*

     2  * Copyright (c) 2018, 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 8202948

    27  * @summary Test skipping vector packs with negative base offset.

    28  * @comment Test fails only with -Xcomp when profiling data is not present.

    29  * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:+UnlockExperimentalVMOptions

    30  *                   -Xcomp -XX:-TieredCompilation -XX:CICompilerCount=1

    31  *                   -XX:CompileOnly=compiler/loopopts/superword/TestNegBaseOffset

    32  *                   compiler.loopopts.superword.TestNegBaseOffset

    33  */

    35 package compiler.loopopts.superword;

    37 public class TestNegBaseOffset {

    38     public static final int N = 400;

    39     public static int iFld=10;

    40     public static int iArr[]=new int[N];

    42     public static void mainTest() {

    43         int i0=1, i2;

    44         while (++i0 < 339) {

    45             if ((i0 % 2) == 0) {

    46                 for (i2 = 2; i2 > i0; i2 -= 3) {

    47                     iArr[i2 - 1] &= iFld;

    48                 }

    49             }

    50         }

    51     }

    53     public static void main(String[] strArr) {

    54         for (int i = 0; i < 10; i++) {

    55             mainTest();

    56         }

    57     }

    58 }

Mercurial > jdk8-mips64-public > hotspot / file revision

test/compiler/loopopts/superword/TestNegBaseOffset.java@b290489738b8

test/compiler/loopopts/superword/TestNegBaseOffset.java