1 /*
   2  * Copyright (c) 2015, 2015, 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 package org.graalvm.compiler.core.test;
  24 
  25 import org.junit.Test;
  26 
  27 import org.graalvm.compiler.api.directives.GraalDirectives;
  28 
  29 /**
  30  * Collection of tests for
  31  * {@link org.graalvm.compiler.phases.common.DominatorConditionalEliminationPhase} including those
  32  * that triggered bugs in this phase.
  33  */
  34 public class ConditionalEliminationTest9 extends ConditionalEliminationTestBase {
  35 
  36     private static final String REFERENCE_SNIPPET = "referenceSnippet";
  37 
  38     @SuppressWarnings("all")
  39     public static int referenceSnippet(int a) {
  40         if (a == 0) {
  41             GraalDirectives.deoptimize();
  42         }
  43         return 0;
  44     }
  45 
  46     @Test
  47     public void test1() {
  48         testConditionalElimination("test1Snippet", REFERENCE_SNIPPET);
  49     }
  50 
  51     @SuppressWarnings("all")
  52     public static int test1Snippet(int a) {
  53         if (a == 0) {
  54             if (a == 0) {
  55                 GraalDirectives.deoptimize();
  56             }
  57             if (a == 0) {
  58                 GraalDirectives.deoptimize();
  59             }
  60         }
  61         return 0;
  62     }
  63 }