mirror of
https://github.com/openjdk/jdk.git
synced 2026-03-14 18:03:44 +00:00
74 lines
2.4 KiB
Java
74 lines
2.4 KiB
Java
/*
|
|
* Copyright (c) 2025, Red Hat, Inc. 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 8349479
|
|
* @summary C2: when a Type node becomes dead, make CFG path that uses it unreachable
|
|
* @run main/othervm -XX:-TieredCompilation -XX:-BackgroundCompilation -XX:-UseOnStackReplacement
|
|
* -XX:CompileCommand=dontinline,TestGuardOfCastIIDoesntFold::notInlined
|
|
* TestGuardOfCastIIDoesntFold
|
|
* @run main TestGuardOfCastIIDoesntFold
|
|
*/
|
|
|
|
public class TestGuardOfCastIIDoesntFold {
|
|
private static volatile int volatileField;
|
|
|
|
public static void main(String[] args) {
|
|
for (int i = 0; i < 20_000; i++) {
|
|
test1(1, 0, 0, false);
|
|
helper1(1, 0, 0, true);
|
|
helper2(0, 0);
|
|
}
|
|
}
|
|
|
|
private static int test1(int i, int j, int k, boolean flag) {
|
|
int l;
|
|
for (l = 0; l < 10; l++) {
|
|
}
|
|
j = helper2(j, l);
|
|
return helper1(i, j, k, flag);
|
|
}
|
|
|
|
private static int helper2(int j, int l) {
|
|
if (l == 10) {
|
|
j = Integer.MAX_VALUE-1;
|
|
}
|
|
return j;
|
|
}
|
|
|
|
private static int helper1(int i, int j, int k, boolean flag) {
|
|
if (flag) {
|
|
k = Integer.max(k, -2);
|
|
int[] array = new int[i + k];
|
|
notInlined(array);
|
|
return array[j];
|
|
}
|
|
volatileField = 42;
|
|
return volatileField;
|
|
}
|
|
|
|
private static void notInlined(int[] array) {
|
|
}
|
|
}
|