hotspot/test/compiler/arraycopy/TestArraysCopyOfNoTypeCheck.java
author roland
Tue, 16 Dec 2014 13:49:36 +0100
changeset 28396 7fe4347e6792
parent 26435 hotspot/test/compiler/arraycopy/TestArrayOfNoTypeCheck.java@b446202ac824
child 40059 c2304140ed64
permissions -rw-r--r--
6700100: optimize inline_native_clone() for small objects with exact klass Summary: optimize small instance clones as loads/stores Reviewed-by: kvn, iveresov
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
26435
b446202ac824 8055910: closed/java/util/Collections/CheckedCollections.java failed with ClassCastException not thrown
roland
parents:
diff changeset
     1
/*
b446202ac824 8055910: closed/java/util/Collections/CheckedCollections.java failed with ClassCastException not thrown
roland
parents:
diff changeset
     2
 * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
b446202ac824 8055910: closed/java/util/Collections/CheckedCollections.java failed with ClassCastException not thrown
roland
parents:
diff changeset
     3
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
b446202ac824 8055910: closed/java/util/Collections/CheckedCollections.java failed with ClassCastException not thrown
roland
parents:
diff changeset
     4
 *
b446202ac824 8055910: closed/java/util/Collections/CheckedCollections.java failed with ClassCastException not thrown
roland
parents:
diff changeset
     5
 * This code is free software; you can redistribute it and/or modify it
b446202ac824 8055910: closed/java/util/Collections/CheckedCollections.java failed with ClassCastException not thrown
roland
parents:
diff changeset
     6
 * under the terms of the GNU General Public License version 2 only, as
b446202ac824 8055910: closed/java/util/Collections/CheckedCollections.java failed with ClassCastException not thrown
roland
parents:
diff changeset
     7
 * published by the Free Software Foundation.
b446202ac824 8055910: closed/java/util/Collections/CheckedCollections.java failed with ClassCastException not thrown
roland
parents:
diff changeset
     8
 *
b446202ac824 8055910: closed/java/util/Collections/CheckedCollections.java failed with ClassCastException not thrown
roland
parents:
diff changeset
     9
 * This code is distributed in the hope that it will be useful, but WITHOUT
b446202ac824 8055910: closed/java/util/Collections/CheckedCollections.java failed with ClassCastException not thrown
roland
parents:
diff changeset
    10
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
b446202ac824 8055910: closed/java/util/Collections/CheckedCollections.java failed with ClassCastException not thrown
roland
parents:
diff changeset
    11
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
b446202ac824 8055910: closed/java/util/Collections/CheckedCollections.java failed with ClassCastException not thrown
roland
parents:
diff changeset
    12
 * version 2 for more details (a copy is included in the LICENSE file that
b446202ac824 8055910: closed/java/util/Collections/CheckedCollections.java failed with ClassCastException not thrown
roland
parents:
diff changeset
    13
 * accompanied this code).
b446202ac824 8055910: closed/java/util/Collections/CheckedCollections.java failed with ClassCastException not thrown
roland
parents:
diff changeset
    14
 *
b446202ac824 8055910: closed/java/util/Collections/CheckedCollections.java failed with ClassCastException not thrown
roland
parents:
diff changeset
    15
 * You should have received a copy of the GNU General Public License version
b446202ac824 8055910: closed/java/util/Collections/CheckedCollections.java failed with ClassCastException not thrown
roland
parents:
diff changeset
    16
 * 2 along with this work; if not, write to the Free Software Foundation,
b446202ac824 8055910: closed/java/util/Collections/CheckedCollections.java failed with ClassCastException not thrown
roland
parents:
diff changeset
    17
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
b446202ac824 8055910: closed/java/util/Collections/CheckedCollections.java failed with ClassCastException not thrown
roland
parents:
diff changeset
    18
 *
b446202ac824 8055910: closed/java/util/Collections/CheckedCollections.java failed with ClassCastException not thrown
roland
parents:
diff changeset
    19
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
b446202ac824 8055910: closed/java/util/Collections/CheckedCollections.java failed with ClassCastException not thrown
roland
parents:
diff changeset
    20
 * or visit www.oracle.com if you need additional information or have any
b446202ac824 8055910: closed/java/util/Collections/CheckedCollections.java failed with ClassCastException not thrown
roland
parents:
diff changeset
    21
 * questions.
b446202ac824 8055910: closed/java/util/Collections/CheckedCollections.java failed with ClassCastException not thrown
roland
parents:
diff changeset
    22
 */
b446202ac824 8055910: closed/java/util/Collections/CheckedCollections.java failed with ClassCastException not thrown
roland
parents:
diff changeset
    23
b446202ac824 8055910: closed/java/util/Collections/CheckedCollections.java failed with ClassCastException not thrown
roland
parents:
diff changeset
    24
/*
b446202ac824 8055910: closed/java/util/Collections/CheckedCollections.java failed with ClassCastException not thrown
roland
parents:
diff changeset
    25
 * @test
b446202ac824 8055910: closed/java/util/Collections/CheckedCollections.java failed with ClassCastException not thrown
roland
parents:
diff changeset
    26
 * @bug 8055910
b446202ac824 8055910: closed/java/util/Collections/CheckedCollections.java failed with ClassCastException not thrown
roland
parents:
diff changeset
    27
 * @summary Arrays.copyOf doesn't perform subtype check
28396
7fe4347e6792 6700100: optimize inline_native_clone() for small objects with exact klass
roland
parents: 26435
diff changeset
    28
 * @run main/othervm -XX:-BackgroundCompilation -XX:-UseOnStackReplacement TestArraysCopyOfNoTypeCheck
26435
b446202ac824 8055910: closed/java/util/Collections/CheckedCollections.java failed with ClassCastException not thrown
roland
parents:
diff changeset
    29
 *
b446202ac824 8055910: closed/java/util/Collections/CheckedCollections.java failed with ClassCastException not thrown
roland
parents:
diff changeset
    30
 */
b446202ac824 8055910: closed/java/util/Collections/CheckedCollections.java failed with ClassCastException not thrown
roland
parents:
diff changeset
    31
b446202ac824 8055910: closed/java/util/Collections/CheckedCollections.java failed with ClassCastException not thrown
roland
parents:
diff changeset
    32
import java.util.Arrays;
b446202ac824 8055910: closed/java/util/Collections/CheckedCollections.java failed with ClassCastException not thrown
roland
parents:
diff changeset
    33
28396
7fe4347e6792 6700100: optimize inline_native_clone() for small objects with exact klass
roland
parents: 26435
diff changeset
    34
public class TestArraysCopyOfNoTypeCheck {
26435
b446202ac824 8055910: closed/java/util/Collections/CheckedCollections.java failed with ClassCastException not thrown
roland
parents:
diff changeset
    35
b446202ac824 8055910: closed/java/util/Collections/CheckedCollections.java failed with ClassCastException not thrown
roland
parents:
diff changeset
    36
    static class A {
b446202ac824 8055910: closed/java/util/Collections/CheckedCollections.java failed with ClassCastException not thrown
roland
parents:
diff changeset
    37
    }
b446202ac824 8055910: closed/java/util/Collections/CheckedCollections.java failed with ClassCastException not thrown
roland
parents:
diff changeset
    38
b446202ac824 8055910: closed/java/util/Collections/CheckedCollections.java failed with ClassCastException not thrown
roland
parents:
diff changeset
    39
    static class B extends A {
b446202ac824 8055910: closed/java/util/Collections/CheckedCollections.java failed with ClassCastException not thrown
roland
parents:
diff changeset
    40
    }
b446202ac824 8055910: closed/java/util/Collections/CheckedCollections.java failed with ClassCastException not thrown
roland
parents:
diff changeset
    41
b446202ac824 8055910: closed/java/util/Collections/CheckedCollections.java failed with ClassCastException not thrown
roland
parents:
diff changeset
    42
    static B[] test(A[] arr) {
b446202ac824 8055910: closed/java/util/Collections/CheckedCollections.java failed with ClassCastException not thrown
roland
parents:
diff changeset
    43
        return Arrays.copyOf(arr, 10, B[].class);
b446202ac824 8055910: closed/java/util/Collections/CheckedCollections.java failed with ClassCastException not thrown
roland
parents:
diff changeset
    44
    }
b446202ac824 8055910: closed/java/util/Collections/CheckedCollections.java failed with ClassCastException not thrown
roland
parents:
diff changeset
    45
b446202ac824 8055910: closed/java/util/Collections/CheckedCollections.java failed with ClassCastException not thrown
roland
parents:
diff changeset
    46
    static public void main(String[] args) {
b446202ac824 8055910: closed/java/util/Collections/CheckedCollections.java failed with ClassCastException not thrown
roland
parents:
diff changeset
    47
        A[] arr = new A[20];
b446202ac824 8055910: closed/java/util/Collections/CheckedCollections.java failed with ClassCastException not thrown
roland
parents:
diff changeset
    48
        for (int i = 0; i < 20000; i++) {
b446202ac824 8055910: closed/java/util/Collections/CheckedCollections.java failed with ClassCastException not thrown
roland
parents:
diff changeset
    49
            test(arr);
b446202ac824 8055910: closed/java/util/Collections/CheckedCollections.java failed with ClassCastException not thrown
roland
parents:
diff changeset
    50
        }
b446202ac824 8055910: closed/java/util/Collections/CheckedCollections.java failed with ClassCastException not thrown
roland
parents:
diff changeset
    51
        A[] arr2 = new A[20];
b446202ac824 8055910: closed/java/util/Collections/CheckedCollections.java failed with ClassCastException not thrown
roland
parents:
diff changeset
    52
        arr2[0] = new A();
b446202ac824 8055910: closed/java/util/Collections/CheckedCollections.java failed with ClassCastException not thrown
roland
parents:
diff changeset
    53
        boolean exception = false;
b446202ac824 8055910: closed/java/util/Collections/CheckedCollections.java failed with ClassCastException not thrown
roland
parents:
diff changeset
    54
        try {
b446202ac824 8055910: closed/java/util/Collections/CheckedCollections.java failed with ClassCastException not thrown
roland
parents:
diff changeset
    55
            test(arr2);
b446202ac824 8055910: closed/java/util/Collections/CheckedCollections.java failed with ClassCastException not thrown
roland
parents:
diff changeset
    56
        } catch (ArrayStoreException ase) {
b446202ac824 8055910: closed/java/util/Collections/CheckedCollections.java failed with ClassCastException not thrown
roland
parents:
diff changeset
    57
            exception = true;
b446202ac824 8055910: closed/java/util/Collections/CheckedCollections.java failed with ClassCastException not thrown
roland
parents:
diff changeset
    58
        }
b446202ac824 8055910: closed/java/util/Collections/CheckedCollections.java failed with ClassCastException not thrown
roland
parents:
diff changeset
    59
        if (!exception) {
b446202ac824 8055910: closed/java/util/Collections/CheckedCollections.java failed with ClassCastException not thrown
roland
parents:
diff changeset
    60
            throw new RuntimeException("TEST FAILED: ArrayStoreException not thrown");
b446202ac824 8055910: closed/java/util/Collections/CheckedCollections.java failed with ClassCastException not thrown
roland
parents:
diff changeset
    61
        }
b446202ac824 8055910: closed/java/util/Collections/CheckedCollections.java failed with ClassCastException not thrown
roland
parents:
diff changeset
    62
    }
b446202ac824 8055910: closed/java/util/Collections/CheckedCollections.java failed with ClassCastException not thrown
roland
parents:
diff changeset
    63
}