1 /*
   2  * Copyright (c) 2013, 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.bytecode;
  24 
  25 import org.junit.Test;
  26 
  27 import org.graalvm.compiler.jtt.JTTTest;
  28 
  29 /*
  30  */
  31 public class BC_lshr02 extends JTTTest {
  32 
  33     public static long test0(long arg) {
  34         long a = arg >> 32;
  35         return a >> 32;
  36     }
  37 
  38     @Test
  39     public void run0a() throws Throwable {
  40         runTest("test0", 1L);
  41     }
  42 
  43     @Test
  44     public void run0b() throws Throwable {
  45         runTest("test0", 0L);
  46     }
  47 
  48     @Test
  49     public void run0c() throws Throwable {
  50         runTest("test0", -1L);
  51     }
  52 
  53     @Test
  54     public void run0d() throws Throwable {
  55         runTest("test0", Long.MAX_VALUE);
  56     }
  57 
  58     @Test
  59     public void run0e() throws Throwable {
  60         runTest("test0", Long.MIN_VALUE);
  61     }
  62 
  63     /* testcase for a postive stamp */
  64     public static int test1(long[] arg) {
  65         int a = arg.length >> 16;
  66         return a >> 16;
  67     }
  68 
  69     @Test
  70     public void run1a() throws Throwable {
  71         long[] arg = new long[0x100];
  72         runTest("test1", arg);
  73     }
  74 
  75     /* testcase for a strictly negative stamp */
  76     public static int test2(long[] arg) {
  77         int a = (-arg.length - 1) >> 16;
  78         return a >> 16;
  79     }
  80 
  81     @Test
  82     public void run2a() throws Throwable {
  83         long[] arg = new long[0x100];
  84         runTest("test2", arg);
  85     }
  86 }