jdk-24/test/hotspot/jtreg/compiler/c2/TestTopCastIIOnUndetectedDeadPath3.java
Roland Westrelin 7766785098 8319372: C2 compilation fails with "Bad immediate dominator info"
Reviewed-by: kvn, chagedorn, thartmann
2023-11-30 08:09:06 +00:00

59 lines
1.9 KiB
Java

/*
* Copyright (c) 2023, 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 8319372
* @summary CastII because of condition guarding it becomes top
* @run main/othervm -Xcomp -XX:CompileOnly=TestTopCastIIOnUndetectedDeadPath3::* -XX:-TieredCompilation TestTopCastIIOnUndetectedDeadPath3
*/
public class TestTopCastIIOnUndetectedDeadPath3 {
static long test() {
int x = 6, y = 5;
int[] iArr = new int[200];
for (int i = 129; i > 5; i -= 2) { // OSR compiled
try {
y = iArr[i - 1];
x = iArr[i + 1];
x = 1 / i;
} catch (ArithmeticException a_e) {
}
}
Foo.empty();
return x + y;
}
public static void main(String[] strArr) {
new TestTopCastIIOnUndetectedDeadPath3();
for (int i = 0; i < 2000; i++) {
test();
}
}
}
class Foo {
public static void empty() {}
}