3789983e89
Reviewed-by: darcy, ihse
59 lines
1.9 KiB
Java
59 lines
1.9 KiB
Java
/*
|
|
* Copyright (c) 2015, 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 8134321
|
|
* @summary Code that capture field values of eliminated allocation at a safepoint when there's an arraycopy behind a Phi is broken
|
|
*
|
|
* @run main/othervm -XX:-BackgroundCompilation -XX:-UseOnStackReplacement
|
|
* compiler.arraycopy.TestEliminatedArrayCopyPhi
|
|
*/
|
|
|
|
package compiler.arraycopy;
|
|
|
|
public class TestEliminatedArrayCopyPhi {
|
|
|
|
static int[] escaped;
|
|
|
|
static void test(int[] src, boolean flag1, boolean flag2) {
|
|
int[] array = new int[10];
|
|
if (flag1) {
|
|
System.arraycopy(src, 0, array, 0, src.length);
|
|
} else {
|
|
}
|
|
|
|
if (flag2) {
|
|
// never taken
|
|
escaped = array;
|
|
}
|
|
}
|
|
|
|
public static void main(String[] args) {
|
|
int[] src = new int[10];
|
|
for (int i = 0; i < 20000; i++) {
|
|
test(src, (i % 2) == 0, false);
|
|
}
|
|
}
|
|
}
|