Mercurial > hg > graal-compiler
view graal/com.oracle.max.graal.jtt/src/com/oracle/graal/jtt/optimize/Reduce_IntShift01.java @ 5060:4ed4295ce15f
Update import statements.
author | Thomas Wuerthinger <thomas.wuerthinger@oracle.com> |
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date | Thu, 08 Mar 2012 19:11:12 +0100 |
parents | ed559a528128 |
children |
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/* * Copyright (c) 2009, 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 com.oracle.graal.jtt.optimize; import org.junit.*; /* * Tests optimization of integer operations. */ public class Reduce_IntShift01 { public static int test(int arg) { if (arg == 0) { return shift0(arg + 10); } if (arg == 1) { return shift1(arg + 10); } if (arg == 2) { return shift2(arg + 10); } if (arg == 3) { return shift3(arg + 10); } if (arg == 4) { return shift4(arg + 10); } if (arg == 5) { return shift5(arg + 10); } return 0; } public static int shift0(int x) { return x >> 0; } public static int shift1(int x) { return x >>> 0; } public static int shift2(int x) { return x << 0; } public static int shift3(int x) { return x >> 64; } public static int shift4(int x) { return x >>> 64; } public static int shift5(int x) { return x << 64; } @Test public void run0() throws Throwable { Assert.assertEquals(10, test(0)); } @Test public void run1() throws Throwable { Assert.assertEquals(11, test(1)); } @Test public void run2() throws Throwable { Assert.assertEquals(12, test(2)); } @Test public void run3() throws Throwable { Assert.assertEquals(13, test(3)); } @Test public void run4() throws Throwable { Assert.assertEquals(14, test(4)); } @Test public void run5() throws Throwable { Assert.assertEquals(15, test(5)); } }