jdk-24/test/hotspot/jtreg/compiler/c2/irTests/OrLNodeIdealizationTests.java
Zhiqiang Zang 1515bd7c9d 8322077: Add Ideal transformation: (~a) | (~b) => ~(a & b)
Reviewed-by: thartmann, epeter
2024-01-15 06:48:00 +00:00

69 lines
2.1 KiB
Java

/*
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
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* under the terms of the GNU General Public License version 2 only, as
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*
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* 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
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*
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* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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package compiler.c2.irTests;
import jdk.test.lib.Asserts;
import compiler.lib.ir_framework.*;
/*
* @test
* @bug 8322077
* @summary Test that Ideal transformations of OrLNode* are being performed as expected.
* @library /test/lib /
* @run driver compiler.c2.irTests.OrLNodeIdealizationTests
*/
public class OrLNodeIdealizationTests {
public static void main(String[] args) {
TestFramework.run();
}
@Run(test = { "test1" })
public void runMethod() {
long a = RunInfo.getRandom().nextLong();
long b = RunInfo.getRandom().nextLong();
long min = Long.MIN_VALUE;
long max = Long.MAX_VALUE;
assertResult(0, 0);
assertResult(a, b);
assertResult(min, min);
assertResult(max, max);
}
@DontCompile
public void assertResult(long a, long b) {
Asserts.assertEQ((~a) | (~b), test1(a, b));
}
// Checks (~a) | (~b) => ~(a & b)
@Test
@IR(failOn = { IRNode.OR })
@IR(counts = { IRNode.AND, "1",
IRNode.XOR, "1" })
public long test1(long a, long b) {
return (~a) | (~b);
}
}