--- /dev/null 2017-01-22 10:16:57.869617664 -0800 +++ new/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.jtt/src/org/graalvm/compiler/jtt/optimize/LongToSomethingArray01.java 2017-02-15 17:04:00.582767397 -0800 @@ -0,0 +1,94 @@ +/* + * Copyright (c) 2011, 2012, Oracle and/or its affiliates. All rights reserved. + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * This code is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 only, as + * published by the Free Software Foundation. + * + * This code is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * version 2 for more details (a copy is included in the LICENSE file that + * accompanied this code). + * + * You should have received a copy of the GNU General Public License version + * 2 along with this work; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. + * + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA + * or visit www.oracle.com if you need additional information or have any + * questions. + */ +package org.graalvm.compiler.jtt.optimize; + +import org.junit.Test; + +import org.graalvm.compiler.jtt.JTTTest; + +/** + * inspired by java.security.SecureRandom.longToByteArray(long). + * + */ +public class LongToSomethingArray01 extends JTTTest { + + public static byte[] longToByteArray(long arg) { + long l = arg; + byte[] ret = new byte[8]; + for (int i = 0; i < 8; i++) { + ret[i] = (byte) (l & 0xff); + l = l >> 8; + } + return ret; + } + + @Test + public void runB0() throws Throwable { + runTest("longToByteArray", 0x1122_3344_5566_7788L); + } + + public static short[] longToShortArray(long arg) { + long l = arg; + short[] ret = new short[4]; + for (int i = 0; i < 4; i++) { + ret[i] = (short) (l & 0xffff); + l = l >> 16; + } + return ret; + } + + @Test + public void runS0() throws Throwable { + runTest("longToShortArray", 0x1122_3344_5566_7788L); + } + + public static int[] longToIntArray(long arg) { + long l = arg; + int[] ret = new int[2]; + for (int i = 0; i < 2; i++) { + ret[i] = (int) (l & 0xffff_ffff); + l = l >> 32; + } + return ret; + } + + @Test + public void runI0() throws Throwable { + runTest("longToIntArray", 0x1122_3344_5566_7788L); + } + + public static long[] longToLongArray(long arg) { + long l = arg; + long[] ret = new long[1]; + for (int i = 0; i < 1; i++) { + ret[i] = l & 0xffff_ffff_ffff_ffffL; + l = l >> 64; + } + return ret; + } + + @Test + public void runL0() throws Throwable { + runTest("longToLongArray", 0x1122_3344_5566_7788L); + } +}