63 lines
1.8 KiB
Java
63 lines
1.8 KiB
Java
/*
|
|
* Copyright (c) 2022, 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.
|
|
*/
|
|
|
|
package compiler.c2.irTests;
|
|
|
|
import compiler.lib.ir_framework.*;
|
|
|
|
/*
|
|
* @test
|
|
* bug 8290529
|
|
* @summary verify that x <u 1 is transformed to x == 0
|
|
* @requires os.arch=="amd64" | os.arch=="x86_64" | os.arch=="riscv64"
|
|
* @library /test/lib /
|
|
* @requires vm.compiler2.enabled
|
|
* @run driver compiler.c2.irTests.CmpUWithZero
|
|
*/
|
|
|
|
public class CmpUWithZero {
|
|
static volatile boolean field;
|
|
|
|
public static void main(String[] args) {
|
|
TestFramework.run();
|
|
}
|
|
|
|
@Test
|
|
@IR(counts = { IRNode.CMP_I, "1" })
|
|
@IR(failOn = { IRNode.CMP_U})
|
|
public static void test(int x) {
|
|
if (Integer.compareUnsigned(x, 1) < 0) {
|
|
field = true;
|
|
} else {
|
|
field = false;
|
|
}
|
|
}
|
|
|
|
@Run(test = "test")
|
|
private void testRunner() {
|
|
test(0);
|
|
test(42);
|
|
}
|
|
|
|
}
|