1 /* 2 * Copyright (c) 2011, 2019, 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 24 25 package org.graalvm.compiler.jtt.lang; 26 27 import org.graalvm.compiler.jtt.JTTTest; 28 import org.graalvm.compiler.options.OptionValues; 29 import org.graalvm.compiler.serviceprovider.JavaVersionUtil; 30 31 import jdk.vm.ci.meta.ResolvedJavaMethod; 32 33 public abstract class UnaryMath extends JTTTest { 34 35 private static final long STEP = Long.MAX_VALUE / 100_000; 36 37 /** 38 * Tests a unary {@link Math} method on a wide range of values. 39 */ 40 void testManyValues(OptionValues options, ResolvedJavaMethod method) throws AssertionError { 41 if (JavaVersionUtil.JAVA_SPEC > 8) { 42 /* 43 * GR-8276: Allow for variance on JVMCI > 8 until a JVMCI version that includes 44 * https://github.com/graalvm/graal-jvmci-8/commit/ 45 * c86fb66f86b8d52a08dd2495d34879d3730f9987 or Graal has stubs that a monotonic with 46 * other HotSpot implementations of these Math routines. 47 */ 48 ulpDelta = 2D; 49 } else { 50 /* 51 * Forces the assertion message shows the ulps by which a computed result is wrong. 52 */ 53 ulpDelta = 0D; 54 } 55 Object receiver = null; 56 long testIteration = 0; 57 for (long l = Long.MIN_VALUE;; l += STEP) { 58 double d = Double.longBitsToDouble(l); 59 Result expect = executeExpected(method, receiver, d); 60 try { 61 testAgainstExpected(options, method, expect, EMPTY, receiver, d); 62 testIteration++; 63 } catch (AssertionError e) { 64 throw new AssertionError(String.format("%d: While testing %g [long: %d, hex: %x]", testIteration, d, l, l), e); 65 } 66 if (Long.MAX_VALUE - STEP < l) { 67 break; 68 } 69 } 70 } 71 }