jdk-24/test/hotspot/jtreg/compiler/c2/ClearArray.java
2024-04-09 01:37:38 +00:00

54 lines
2.0 KiB
Java

/*
* Copyright (c) 2022, 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 ClearArray.java
* @bug 8284883
* @compile ClearArray.java
* @summary ClearArray instruction overflows scratch buffer
* @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:-TieredCompilation -Xbatch
* -XX:InitArrayShortSize=32768 -XX:-IdealizeClearArrayNode compiler.c2.ClearArray
* @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+IgnoreUnrecognizedVMOptions -XX:-TieredCompilation -Xbatch
* -XX:InitArrayShortSize=32768 -XX:-IdealizeClearArrayNode -XX:UseAVX=3 compiler.c2.ClearArray
* @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+IgnoreUnrecognizedVMOptions -XX:-TieredCompilation -Xbatch
* -XX:InitArrayShortSize=32768 -XX:MaxVectorSize=8 -XX:-IdealizeClearArrayNode -XX:UseAVX=3 compiler.c2.ClearArray
*/
package compiler.c2;
public class ClearArray {
static long[] STATIC;
static void foo() {
STATIC = new long[2048 - 1];
}
public static void main(String[] args) {
for (int i = 0; i < 20_000; ++i) {
foo();
}
}
}