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/*
* Copyright (c) 2024, 2025, 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.
*/
package compiler.c2.irTests;
import jdk.test.lib.Asserts;
import compiler.lib.ir_framework.*;
/*
* @test
* @bug 8322077 8353359
* @summary Test that Ideal transformations of OrINode* are being performed as expected.
* @library /test/lib /
* @run driver compiler.c2.irTests.OrINodeIdealizationTests
*/
public class OrINodeIdealizationTests {
public static void main(String[] args) {
TestFramework.run();
}
@Run(test = { "test1", "test2", "test3" })
public void runMethod() {
int a = RunInfo.getRandom().nextInt();
int b = RunInfo.getRandom().nextInt();
int min = Integer.MIN_VALUE;
int max = Integer.MAX_VALUE;
assertResult(0, 0);
assertResult(a, b);
assertResult(min, min);
assertResult(max, max);
}
@DontCompile
public void assertResult(int a, int b) {
Asserts.assertEQ((~a) | (~b), test1(a, b));
Asserts.assertEQ((a | 3) | 6, test2(a));
Asserts.assertEQ((a | 3) | a, test3(a));
}
// Checks (~a) | (~b) => ~(a & b)
@Test
@IR(failOn = { IRNode.OR })
@IR(counts = { IRNode.AND, "1",
IRNode.XOR, "1" })
public int test1(int a, int b) {
return (~a) | (~b);
}
// Checks (a | 3) | 6 => a | (3 | 6) => a | 7
@Test
@IR(counts = { IRNode.OR, "1"})
public int test2(int a) {
return (a | 3) | 6;
}
// Checks (a | 3) | a => (a | a) | 3 => a | 3
@Test
@IR(counts = { IRNode.OR, "1"})
public int test3(int a) {
return (a | 3) | a;
}
}
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