1 /*
   2  * Copyright (c) 2009, 2012, 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.jtt.optimize;
  24 
  25 import org.junit.Test;
  26 
  27 import org.graalvm.compiler.jtt.JTTTest;
  28 
  29 /*
  30  */
  31 public class Phi02 extends JTTTest {
  32 
  33     public static class Phi {
  34 
  35         int f;
  36 
  37         Phi(int f) {
  38             this.f = f;
  39         }
  40     }
  41 
  42     public static int test(int arg) {
  43         return test2(new Phi(arg), arg);
  44     }
  45 
  46     private static int test2(Phi p, int a) {
  47         int arg = a;
  48         if (arg > 2) {
  49             inc(p, 1);
  50             arg += 1;
  51         } else {
  52             inc(p, 2);
  53             arg += 2;
  54             if (arg > 3) {
  55                 inc(p, 1);
  56                 arg += 1;
  57                 if (arg > 4) {
  58                     inc(p, 1);
  59                     arg += 1;
  60                 } else {
  61                     inc(p, 2);
  62                     arg += 2;
  63                 }
  64             } else {
  65                 inc(p, 2);
  66                 arg += 2;
  67             }
  68         }
  69         return arg + p.f;
  70     }
  71 
  72     private static void inc(Phi p, int inc) {
  73         p.f += inc;
  74     }
  75 
  76     @Test
  77     public void run0() throws Throwable {
  78         runTest("test", 0);
  79     }
  80 
  81     @Test
  82     public void run1() throws Throwable {
  83         runTest("test", 1);
  84     }
  85 
  86     @Test
  87     public void run2() throws Throwable {
  88         runTest("test", 2);
  89     }
  90 
  91     @Test
  92     public void run3() throws Throwable {
  93         runTest("test", 3);
  94     }
  95 
  96     @Test
  97     public void run4() throws Throwable {
  98         runTest("test", 4);
  99     }
 100 
 101     @Test
 102     public void run5() throws Throwable {
 103         runTest("test", 6);
 104     }
 105 
 106 }