1 /* 2 * Copyright (c) 2016, 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.nodes.test; 24 25 import org.graalvm.compiler.nodes.calc.ReinterpretNode; 26 27 /** 28 * Unit tests for the {@link ReinterpretNode#inferStamp} method. 29 */ 30 public class ReinterpretStampTest { 31 32 protected static final long[] interestingLongs = { 33 // @formatter:off 34 Long.MIN_VALUE, // -0.0d 35 Long.MIN_VALUE + 1, // largest negative number 36 Double.doubleToLongBits(-42.0), // random negative number 37 Double.doubleToLongBits(Double.NEGATIVE_INFINITY) - 1, // smallest negative number 38 Double.doubleToLongBits(Double.NEGATIVE_INFINITY), // -Inf 39 Double.doubleToLongBits(Double.NEGATIVE_INFINITY) + 1, // smallest negative NaN 40 -42, // random negative NaN 41 -1, // largest negative NaN 42 0, // 0.0d 43 1, // smallest positive number 44 Double.doubleToLongBits(42.0), // random positive number 45 Double.doubleToLongBits(Double.POSITIVE_INFINITY) - 1, // largest positive number 46 Double.doubleToLongBits(Double.POSITIVE_INFINITY), // +Inf 47 Double.doubleToLongBits(Double.POSITIVE_INFINITY) + 1, // smallest positive NaN 48 Long.MAX_VALUE - 42, // random positive NaN 49 Long.MAX_VALUE, // largest positive NaN 50 // @formatter:on 51 }; 52 53 protected static final int[] interestingInts = { 54 // @formatter:off 55 Integer.MIN_VALUE, // -0.0f 56 Integer.MIN_VALUE + 1, // largest negative number 57 Float.floatToIntBits(-42.0f), // random negative number 58 Float.floatToIntBits(Float.NEGATIVE_INFINITY) - 1, // smallest negative number 59 Float.floatToIntBits(Float.NEGATIVE_INFINITY), // -Inf 60 Float.floatToIntBits(Float.NEGATIVE_INFINITY) + 1, // smallest negative NaN 61 -42, // random negative NaN 62 -1, // largest negative NaN 63 0, // 0.0f 64 1, // smallest positive number 65 Float.floatToIntBits(42.0f), // random positive number 66 Float.floatToIntBits(Float.POSITIVE_INFINITY) - 1, // largest positive number 67 Float.floatToIntBits(Float.POSITIVE_INFINITY), // +Inf 68 Float.floatToIntBits(Float.POSITIVE_INFINITY) + 1, // smallest positive NaN 69 Integer.MAX_VALUE - 42, // random positive NaN 70 Integer.MAX_VALUE, // largest positive NaN 71 // @formatter:on 72 }; 73 }