russell@unturf.com
0a580b313d
Authors: russell@unturf.com · brackishbert@gmail.com · foxhop.net · TimeHexOn.com Patches, unit tests, benchmarks, whitepaper, and outreach briefs. Public domain — no copyright claimed. Use freely.
85 lines
2.6 KiB
Java
85 lines
2.6 KiB
Java
/*
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* Copyright (c) 2024, 2025, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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package compiler.c2.irTests;
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import jdk.test.lib.Asserts;
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import compiler.lib.ir_framework.*;
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/*
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* @test
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* @bug 8322077 8353359
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* @summary Test that Ideal transformations of OrLNode* are being performed as expected.
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* @library /test/lib /
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* @run driver compiler.c2.irTests.OrLNodeIdealizationTests
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*/
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public class OrLNodeIdealizationTests {
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public static void main(String[] args) {
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TestFramework.run();
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}
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@Run(test = { "test1", "test2", "test3" })
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public void runMethod() {
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long a = RunInfo.getRandom().nextLong();
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long b = RunInfo.getRandom().nextLong();
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long min = Long.MIN_VALUE;
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long max = Long.MAX_VALUE;
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assertResult(0, 0);
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assertResult(a, b);
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assertResult(min, min);
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assertResult(max, max);
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}
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@DontCompile
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public void assertResult(long a, long b) {
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Asserts.assertEQ((~a) | (~b), test1(a, b));
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Asserts.assertEQ((a | 3) | 6, test2(a));
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Asserts.assertEQ((a | 3) | a, test3(a));
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}
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// Checks (~a) | (~b) => ~(a & b)
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@Test
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@IR(failOn = { IRNode.OR })
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@IR(counts = { IRNode.AND, "1",
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IRNode.XOR, "1" })
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public long test1(long a, long b) {
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return (~a) | (~b);
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}
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// Checks (a | 3) | 6 => a | (3 | 6) => a | 7
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@Test
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@IR(counts = { IRNode.OR, "1"})
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public long test2(long a) {
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return (a | 3) | 6;
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}
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// Checks (a | 3) | a => (a | a) | 3 => a | 3
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@Test
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@IR(counts = { IRNode.OR, "1"})
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public long test3(long a) {
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return (a | 3) | a;
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}
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}
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