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 * Copyright (c) 2016, 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).

 *

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 * 2 along with this work; if not, write to the Free Software Foundation,

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/*

 * @test

 * @bug 8149607

 * @summary Throw VerifyError when popping a stack element of TOP

 * @compile popDupSwapTests.jasm

 * @run main/othervm -Xverify:all PopDupTop

 */

public class PopDupTop {

    public static void testClass(String class_name, String msg) throws Throwable {

        try {

            Class newClass = Class.forName(class_name);

            throw new RuntimeException("Expected VerifyError exception not thrown for " + msg);

        } catch (java.lang.VerifyError e) {

            if (!e.getMessage().contains("Bad type on operand stack")) {

               throw new RuntimeException(

                   "Unexpected VerifyError message for " + msg + ": " + e.getMessage());

            }

        }

    }

    public static void main(String args[]) throws Throwable {

        System.out.println("Regression test for bug 8149607");

        testClass("dup_x1", "dup_x1 of long,ref");

        testClass("dup2toptop", "dup2 of top,top");

        testClass("dup2longtop", "dup2 of long,top");

        testClass("dup2_x1", "dup2_x1 long,ref,ref");

        testClass("dup2_x2", "dup2_x2 top");

        testClass("dup2_x2_long_refs", "dup2_x2 long,ref,ref,ref");

        testClass("poptop", "pop of top");

        testClass("poptoptop", "pop of top,top");

        testClass("pop2toptop", "pop2 of top,top");

        testClass("pop2longtop", "pop2 of long,top");

        testClass("swaptoptop", "swap of top,top");

        testClass("swapinttop", "swap of int,top");

        testClass("swaptopint", "swap of top,int");

    }

}