jdk8-mips64-public/hotspot: test/compiler/6823453/Test.java@ad8c635e757e

6823453: DeoptimizeALot causes fastdebug server jvm to fail with assert(false,"unscheduable graph")
Summary: Use a HaltNode on the fall through path of the AllocateArrayNode to indicate that it is unreachable if the array length is negative.
Reviewed-by: never, jrose

     1 /*

     2  * Copyright 2009 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,

    20  * CA 95054 USA or visit www.sun.com if you need additional information or

    21  * have any questions.

    22  *

    23  */

    25 /*

    26  * @test

    27  * @bug 6823453

    28  * @summary DeoptimizeALot causes fastdebug server jvm to fail with assert(false,"unscheduable graph")

    29  * @run main/othervm -Xcomp -XX:CompileOnly=Test -XX:+DeoptimizeALot Test

    30  */

    32 public class Test {

    34    static long vara_1 = 1L;

    36    static void testa() {

    37       short var_2 = (byte) 1.0E10;

    39       for ( Object temp = new byte[(byte)1.0E10];  true ;

    40             var_2 = "1".equals("0") ? ((byte) vara_1) : 1 ) {}

    41    }

    43    static void testb() {

    44       long var_1 = -1L;

    46       short var_2 = (byte) 1.0E10;

    48       for ( Object temp = new byte[(byte)1.0E10];  true ;

    49             var_2 = "1".equals("0") ? ((byte) var_1) : 1 ) {}

    50    }

    52    static void testc() {

    53       long var_1 = -1L;

    54       if (vara_1 > 0)  var_1 = 1L;

    56       int var_2 = (byte)var_1 - 128;

    58       for ( Object temp = new byte[var_2];  true ;

    59             var_2 = "1".equals("0") ? 2 : 1 ) {}

    60    }

    62    static void testd() {

    63       long var_1 = 0L;

    65       int var_2 = (byte)var_1 + 1;

    66       for (int i=0; i<2 ; i++)  var_2 = var_2 - 1;

    68       for ( Object temp = new byte[var_2];  true ;

    69             var_2 = "1".equals("0") ? 2 : 1 ) {}

    70    }

    72    public static void main(String[] args) throws Exception {

    73       int nex = 0;

    75       try {

    76          testa();

    77       }

    78       catch (java.lang.NegativeArraySizeException ex) { nex++; }

    79       try {

    80          testb();

    81       }

    82       catch (java.lang.NegativeArraySizeException ex) { nex++; }

    83       try {

    84          testc();

    85       }

    86       catch (java.lang.NegativeArraySizeException ex) { nex++; }

    87       try {

    88          testd();

    89       }

    90       catch (java.lang.NegativeArraySizeException ex) { nex++; }

    92       if (nex != 4)

    93         System.exit(97);

    94    }

    95 }

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

test/compiler/6823453/Test.java@ad8c635e757e

test/compiler/6823453/Test.java