1 /*
   2  * Copyright (c) 2016, 2018, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 
  24 package runtime.valhalla.valuetypes;
  25 
  26 /*
  27  * @test Test8186715
  28  * @summary test return of buffered value passed in argument by caller
  29  * @library /test/lib
  30  * @compile -XDemitQtypes -XDallowWithFieldOperator -XDenableValueTypes Test8186715.java
  31  * @run main/othervm -Xint -XX:+EnableValhalla runtime.valhalla.valuetypes.Test8186715
  32  * @run main/othervm -XX:+EnableValhalla runtime.valhalla.valuetypes.Test8186715
  33  */
  34 
  35 public class Test8186715 {
  36 
  37     public static void main(String[] args) {
  38         MyValueType v = MyValueType.testDefault();
  39 
  40         for (int i = 0; i < 1000000; i++) {
  41             MyValueType.testBranchArg1(false, v);
  42         }
  43     }
  44 }
  45 
  46 value final class MyValueType {
  47     final int i;
  48     final int j;
  49 
  50     private MyValueType() {
  51         i = 0;
  52         j = 0;
  53     }
  54 
  55     static MyValueType testDefault() {
  56         return MyValueType.default;
  57     }
  58 
  59     static MyValueType testBranchArg1(boolean flag, MyValueType v1) {
  60         if (flag) {
  61             v1 = __WithField(v1.i, 3);
  62             v1 = __WithField(v1.j, 4);
  63         }
  64         return v1;
  65     }
  66 }