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 /**
  28  * Collection of tests for
  29  * {@link org.graalvm.compiler.phases.common.DominatorConditionalEliminationPhase} including those
  30  * that triggered bugs in this phase.
  31  */
  32 public class ConditionalEliminationTest8 extends ConditionalEliminationTestBase {
  33 
  34     private static double value;
  35 
  36     @SuppressWarnings("all")
  37     public static int test1Snippet(int a, Object b) {
  38         double sum = 0;
  39         if (!(b instanceof String)) {
  40             return 42;
  41         }
  42         for (int j = 0; j < a; ++j) {
  43             sum += value;
  44         }
  45         return ((String) b).length();
  46     }
  47 
  48     @Test
  49     public void test1() {
  50         // One loop exit is skipped, because the condition dominates also the loop begin.
  51         testProxies("test1Snippet", 0);
  52     }
  53 }