jdk-24/test/hotspot/jtreg/compiler/c2/TestUnsignedCompareIntoEqualityNotCanonical.java
Roland Westrelin 77e21c57ce 8290529: C2: assert(BoolTest(btest).is_canonical()) failure
Reviewed-by: kvn, thartmann
2022-09-02 13:35:11 +00:00

47 lines
1.6 KiB
Java

/*
* Copyright (c) 2022, 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
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*/
/*
* @test
* @bug 8290529
* @summary C2: assert(BoolTest(btest).is_canonical()) failure
* @run main/othervm -XX:-BackgroundCompilation -XX:-UseOnStackReplacement -XX:-TieredCompilation TestUnsignedCompareIntoEqualityNotCanonical
*/
public class TestUnsignedCompareIntoEqualityNotCanonical {
public static void main(String[] args) {
for (int i = 0; i < 20_000; i++) {
test(0);
test(1);
}
}
private static int test(int x) {
if (Integer.compareUnsigned(0, x) >= 0) {
return 42;
}
return -42;
}
}