1 /*
   2  * Copyright (c) 2017, 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  */
  25 
  26 
  27 package org.graalvm.compiler.core.test.deopt;
  28 
  29 import org.graalvm.compiler.api.directives.GraalDirectives;
  30 import org.graalvm.compiler.core.test.GraalCompilerTest;
  31 import org.graalvm.compiler.nodes.FrameState;
  32 import org.junit.Test;
  33 
  34 public final class RethrowDeoptMaterializeTest extends GraalCompilerTest {
  35 
  36     private static final Object RETURN_VALUE = "1 2 3";
  37     private static final RuntimeException DUMMY_EXCEPTION = new RuntimeException();
  38 
  39     static class MyException extends RuntimeException {
  40         private static final long serialVersionUID = 0L;
  41 
  42         MyException(Throwable cause) {
  43             super(cause);
  44         }
  45 
  46         @SuppressWarnings("sync-override")
  47         @Override
  48         public final Throwable fillInStackTrace() {
  49             return null;
  50         }
  51     }
  52 
  53     public static Object executeDeoptRethrow(int action) {
  54 
  55         try {
  56             if (action != 0) {
  57                 throw new MyException(DUMMY_EXCEPTION);
  58             } else if (action == 1) {
  59                 throw new MyException(null);
  60             }
  61         } catch (RuntimeException t) {
  62             Throwable e = t.getCause();
  63             GraalDirectives.deoptimize();
  64             if (e != DUMMY_EXCEPTION) {
  65                 throw t;
  66             }
  67         }
  68         return RETURN_VALUE;
  69     }
  70 
  71     /**
  72      * This tests that a state with {@link FrameState#rethrowException()} set to true can properly
  73      * throw an exception that must be rematerialized.
  74      */
  75     @Test
  76     public void testDeoptRethrow() {
  77         test("executeDeoptRethrow", 1);
  78     }
  79 }