jdk-24/test/hotspot/jtreg/compiler/arraycopy/TestArrayCopyOfRangeGuards.java

62 lines
2.1 KiB
Java

/*
* Copyright (c) 2024, 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 8323682
* @summary Test that the appropriate guards are generated for the copyOfRange
* intrinsic, even if the result of the array copy is not used.
*
* @run main/othervm -XX:-TieredCompilation
* -XX:CompileCommand=compileonly,compiler.arraycopy.TestArrayCopyOfRangeGuards::test
* -Xbatch
* compiler.arraycopy.TestArrayCopyOfRangeGuards
*/
package compiler.arraycopy;
import java.util.Arrays;
public class TestArrayCopyOfRangeGuards {
static int counter = 0;
public static void main(String[] args) {
Object[] array = new Object[10];
for (int i = 0; i < 50_000; i++) {
test(array);
}
if (counter != 50_000) {
throw new RuntimeException("Test failed");
}
}
static void test(Object[] array) {
try {
Arrays.copyOfRange(array, 15, 20, Object[].class);
} catch (ArrayIndexOutOfBoundsException e) {
// Expected
counter++;
}
}
}