test/hotspot/jtreg/compiler/ccp/TestAndConZeroCCP.java

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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * 2 along with this work; if not, write to the Free Software Foundation,
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/*
 * @test
 * @bug 8350563
 * @summary Test that And nodes are monotonic and added to the CCP worklist if they have a constant as input.
 * @run main/othervm -Xbatch -XX:-TieredCompilation compiler.ccp.TestAndConZeroCCP
 * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:RepeatCompilation=100 -XX:+StressIGVN -XX:+StressCCP -Xcomp
 *                   -XX:CompileOnly=java.lang.Integer::parseInt compiler.ccp.TestAndConZeroCCP compileonly
 * @run main compiler.ccp.TestAndConZeroCCP
 */
package compiler.ccp;

import java.util.Arrays;

public class TestAndConZeroCCP {

    public static void main(String[] args) {
        Integer.parseInt("1");
        if (args.length != 0) {
            return;
        }

        for (int i = 0; i < 100; ++i) {
            run();
        }
    }

    private static void run() {
        for (int cp = 0; cp <= 1 << 16; cp++) {
            Arrays.binarySearch(array, cp);
            Character.getType(cp);
            Character.isAlphabetic(cp);
        }
    }

    private static final int[] array = new int[3];
}