1 /* 2 * Copyright (c) 2009, 2013, 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 package com.oracle.graal.compiler.hsail.test; 25 26 import org.junit.*; 27 28 import com.oracle.graal.compiler.hsail.test.infra.*; 29 30 /** 31 * Tests intrinsic for call to Math.sqrt(double). Generates a sqrt_f64 instruction. 32 */ 33 public class DoubleSqrtTest extends GraalKernelTester { 34 35 static final int size = 64; 36 @Result double[] out = new double[size]; 37 38 /** 39 * The static "kernel" method we will be testing. This method calls Math.sqrt() on an element of 40 * an input array and writes the result to the corresponding index of an output array. By 41 * convention the gid is the last parameter. 42 * 43 * @param out the output array. 44 * @param in the input array. 45 * @param gid the parameter used to index into the input and output arrays. 46 */ 47 public static void run(double[] in, double[] out, int gid) { 48 out[gid] = Math.sqrt(in[gid]); 49 } 50 51 /** 52 * Initializes the input and output arrays passed to the run routine. 53 * 54 * @param in the input array. 55 */ 56 void setupArrays(double[] in) { 57 for (int i = 0; i < size; i++) { 58 // Include positive and negative values as well as corner cases. 59 if (i == 1) { 60 in[i] = Double.NaN; 61 } else if (i == 2) { 62 in[i] = Double.NEGATIVE_INFINITY; 63 } else if (i == 3) { 64 in[i] = Double.POSITIVE_INFINITY; 65 } else if (i == 4) { 66 in[i] = -0.0; 67 } else if (i > 5 && i < 10) { 68 in[i] = i + 0.5; 69 } else { 70 in[i] = i < size / 2 ? i : -i; 71 } 72 out[i] = 0; 73 } 74 } 75 76 /** 77 * Dispatches the HSAIL kernel for this test case. 78 */ 79 @Override 80 public void runTest() { 81 double[] inArray = new double[size]; 82 setupArrays(inArray); 83 dispatchMethodKernel(size, inArray, out); 84 } 85 86 /** 87 * Tests the HSAIL code generated for this unit test by comparing the result of executing this 88 * code with the result of executing a sequential Java version of this unit test. 89 */ 90 @Test 91 public void test() { 92 testGeneratedHsail(); 93 } 94 }