Mercurial > hg > truffle
view graal/com.oracle.graal.api.meta.test/src/com/oracle/graal/api/meta/test/ConstantTest.java @ 21448:545cd6b3b377
Make ShiftNode narrowable under certain conditions.
author | Roland Schatz <roland.schatz@oracle.com> |
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date | Thu, 21 May 2015 13:25:44 +0200 |
parents | ca81508f2a19 |
children |
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/* * Copyright (c) 2014, 2014, 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.api.meta.test; import org.junit.*; import com.oracle.graal.api.meta.*; public class ConstantTest extends FieldUniverse { @Test public void testNegativeZero() { Assert.assertTrue("Constant for 0.0f must be different from -0.0f", JavaConstant.FLOAT_0 != JavaConstant.forFloat(-0.0F)); Assert.assertTrue("Constant for 0.0d must be different from -0.0d", JavaConstant.DOUBLE_0 != JavaConstant.forDouble(-0.0d)); } @Test public void testNullIsNull() { Assert.assertTrue(JavaConstant.NULL_POINTER.isNull()); } @Test public void testOne() { for (Kind kind : Kind.values()) { if (kind.isNumericInteger() || kind.isNumericFloat()) { Assert.assertTrue(JavaConstant.one(kind).getKind() == kind); } } Assert.assertEquals(1, JavaConstant.one(Kind.Int).asInt()); Assert.assertEquals(1L, JavaConstant.one(Kind.Long).asLong()); Assert.assertEquals(1, JavaConstant.one(Kind.Byte).asInt()); Assert.assertEquals(1, JavaConstant.one(Kind.Short).asInt()); Assert.assertEquals(1, JavaConstant.one(Kind.Char).asInt()); Assert.assertTrue(1F == JavaConstant.one(Kind.Float).asFloat()); Assert.assertTrue(1D == JavaConstant.one(Kind.Double).asDouble()); } @Test(expected = IllegalArgumentException.class) public void testIllegalOne() { JavaConstant.one(Kind.Illegal); } @Test(expected = IllegalArgumentException.class) public void testVoidOne() { JavaConstant.one(Kind.Void); } }