test/hotspot/jtreg/compiler/codegen/TestMatcherClone.java

/*
 * Copyright (c) 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.
 */

/*
 * @test
 * @bug 8331295
 * @requires os.simpleArch == "aarch64"
 * @summary Check that the matcher does not needlessly clone an addressing
 *          expression that will in any case not be subsumed into complex
 *          loads and stores.
 * @library /test/lib /
 * @run driver compiler.codegen.TestMatcherClone
 */

package compiler.codegen;

import compiler.lib.ir_framework.*;

public class TestMatcherClone {
    static volatile int[] iArr;
    static volatile int x;
    static int[] iArr2 = new int[100];
    static int[] iArr3 = new int[100];

    public static void main(String[] args) {
        TestFramework.run();
    }

    @Test(compLevel = CompLevel.C2)
    @IR(counts = {IRNode.ADD_P_OF, "reg_imm", "<400"},
        phase = CompilePhase.MATCHING)
    public void test() {
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};
        iArr = new int[] {x % 2};

        for (int i = 0; i < 50; i++) {
            iArr2[i] = iArr3[i];
        }
    }
}