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

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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * This code is free software; you can redistribute it and/or modify it
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
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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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/*
 * @test
 * @bug 8240905
 * @summary Test matching of instructions that have multiple memory inputs.
 * @run main/othervm -Xbatch -XX:-TieredCompilation
 *                   compiler.codegen.TestMultiMemInstructionMatching
 */

package compiler.codegen;

public class TestMultiMemInstructionMatching {

    static volatile int iFldV = 42;
    static volatile long lFldV = 42;
    static int iFld = 42;
    static long lFld = 42;

    // Integer versions

    static int test_blsiI_rReg_mem_1() {
        return (0 - iFldV) & iFldV;
    }

    static int test_blsiI_rReg_mem_2() {
        int sub = (0 - iFld);
        iFldV++;
        return sub & iFld;
    }

    static int test_blsrI_rReg_mem_1() {
        return (iFldV - 1) & iFldV;
    }

    static int test_blsrI_rReg_mem_2() {
        int sub = (iFld - 1);
        iFldV++;
        return sub & iFld;
    }

    static int test_blsmskI_rReg_mem_1() {
        return (iFldV - 1) ^ iFldV;
    }

    static int test_blsmskI_rReg_mem_2() {
        int sub = (iFld - 1);
        iFldV++;
        return sub ^ iFld;
    }

    // Long versions

    static long test_blsiL_rReg_mem_1() {
        return (0 - lFldV) & lFldV;
    }

    static long test_blsiL_rReg_mem_2() {
        long sub = (0 - lFld);
        lFldV++;
        return sub & lFld;
    }

    static long test_blsrL_rReg_mem_1() {
        return (lFldV - 1) & lFldV;
    }

    static long test_blsrL_rReg_mem_2() {
        long sub = (lFld - 1);
        lFldV++;
        return sub & lFld;
    }

    static long test_blsmskL_rReg_mem_1() {
        return (lFldV - 1) ^ lFldV;
    }

    static long test_blsmskL_rReg_mem_2() {
        long sub = (lFld - 1);
        lFldV++;
        return sub ^ lFld;
    }

    public static void main(String[] args) {
        for (int i = 0;i < 100_000;++i) {
            test_blsiI_rReg_mem_1();
            test_blsiI_rReg_mem_2();
            test_blsrI_rReg_mem_1();
            test_blsrI_rReg_mem_2();
            test_blsmskI_rReg_mem_1();
            test_blsmskI_rReg_mem_2();

            test_blsiL_rReg_mem_1();
            test_blsiL_rReg_mem_2();
            test_blsrL_rReg_mem_1();
            test_blsrL_rReg_mem_2();
            test_blsmskL_rReg_mem_1();
            test_blsmskL_rReg_mem_2();
        }
    }
}