1 /* 2 * Copyright (c) 2011, 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 * inspired by java.security.SecureRandom.longToByteArray(long). 31 * 32 */ 33 public class LongToSomethingArray01 extends JTTTest { 34 35 public static byte[] longToByteArray(long arg) { 36 long l = arg; 37 byte[] ret = new byte[8]; 38 for (int i = 0; i < 8; i++) { 39 ret[i] = (byte) (l & 0xff); 40 l = l >> 8; 41 } 42 return ret; 43 } 44 45 @Test 46 public void runB0() throws Throwable { 47 runTest("longToByteArray", 0x1122_3344_5566_7788L); 48 } 49 50 public static short[] longToShortArray(long arg) { 51 long l = arg; 52 short[] ret = new short[4]; 53 for (int i = 0; i < 4; i++) { 54 ret[i] = (short) (l & 0xffff); 55 l = l >> 16; 56 } 57 return ret; 58 } 59 60 @Test 61 public void runS0() throws Throwable { 62 runTest("longToShortArray", 0x1122_3344_5566_7788L); 63 } 64 65 public static int[] longToIntArray(long arg) { 66 long l = arg; 67 int[] ret = new int[2]; 68 for (int i = 0; i < 2; i++) { 69 ret[i] = (int) (l & 0xffff_ffff); 70 l = l >> 32; 71 } 72 return ret; 73 } 74 75 @Test 76 public void runI0() throws Throwable { 77 runTest("longToIntArray", 0x1122_3344_5566_7788L); 78 } 79 80 public static long[] longToLongArray(long arg) { 81 long l = arg; 82 long[] ret = new long[1]; 83 for (int i = 0; i < 1; i++) { 84 ret[i] = l & 0xffff_ffff_ffff_ffffL; 85 l = l >> 64; 86 } 87 return ret; 88 } 89 90 @Test 91 public void runL0() throws Throwable { 92 runTest("longToLongArray", 0x1122_3344_5566_7788L); 93 } 94 }