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  * Tests optimization of integer operations.
  31  */
  32 public class Reduce_LongShift01 extends JTTTest {
  33 
  34     public static long test(long arg) {
  35         if (arg == 0) {
  36             return shift0(arg + 10);
  37         }
  38         if (arg == 1) {
  39             return shift1(arg + 10);
  40         }
  41         if (arg == 2) {
  42             return shift2(arg + 10);
  43         }
  44         if (arg == 3) {
  45             return shift3(arg + 10);
  46         }
  47         if (arg == 4) {
  48             return shift4(arg + 10);
  49         }
  50         if (arg == 5) {
  51             return shift5(arg + 10);
  52         }
  53         return 0;
  54     }
  55 
  56     public static long shift0(long x) {
  57         return x >> 0;
  58     }
  59 
  60     public static long shift1(long x) {
  61         return x >>> 0;
  62     }
  63 
  64     public static long shift2(long x) {
  65         return x << 0;
  66     }
  67 
  68     public static long shift3(long x) {
  69         return x >> 64;
  70     }
  71 
  72     public static long shift4(long x) {
  73         return x >>> 64;
  74     }
  75 
  76     public static long shift5(long x) {
  77         return x << 64;
  78     }
  79 
  80     @Test
  81     public void run0() throws Throwable {
  82         runTest("test", 0L);
  83     }
  84 
  85     @Test
  86     public void run1() throws Throwable {
  87         runTest("test", 1L);
  88     }
  89 
  90     @Test
  91     public void run2() throws Throwable {
  92         runTest("test", 2L);
  93     }
  94 
  95     @Test
  96     public void run3() throws Throwable {
  97         runTest("test", 3L);
  98     }
  99 
 100     @Test
 101     public void run4() throws Throwable {
 102         runTest("test", 4L);
 103     }
 104 
 105     @Test
 106     public void run5() throws Throwable {
 107         runTest("test", 5L);
 108     }
 109 
 110 }