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.Test; 27 import com.oracle.graal.compiler.hsail.test.infra.*; 28 29 /** 30 * Tests intrinsic for calls to Math.abs(float). Generates an abs_f32 instruction. 31 */ 32 public class FloatAbsTest extends GraalKernelTester { 33 34 static final int num = 40; 35 // Output array storing the results of calling Math.abs(). 36 @Result protected float[] outArray = new float[num]; 37 38 /** 39 * The static "kernel" method we will be testing. This method calls Math.abs() 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 ina the input array. 45 * @param gid the parameter used to index into the input and output arrays. 46 */ 47 public static void run(float[] out, float[] ina, int gid) { 48 out[gid] = Math.abs(ina[gid]); 49 } 50 51 /** 52 * Tests the HSAIL code generated for this unit test by comparing the result of executing this 53 * code with the result of executing a sequential Java version of this unit test. 54 */ 55 @Test 56 public void test() { 57 super.testGeneratedHsail(); 58 } 59 60 /** 61 * Initializes the input and output arrays passed to the run routine. 62 * 63 * @param in the input array. 64 */ 65 void setupArrays(float[] in) { 66 for (int i = 0; i < num; i++) { 67 // Initialize array with positive and negative values as well as corner cases. 68 if (i == 1) { 69 in[i] = Float.NaN; 70 } else if (i == 2) { 71 in[i] = Float.NEGATIVE_INFINITY; 72 } else if (i == 3) { 73 in[i] = Float.POSITIVE_INFINITY; 74 } else if (i == 4) { 75 in[i] = -0; 76 } else { 77 in[i] = i < num / 2 ? i : -i; 78 } 79 outArray[i] = 0; 80 } 81 } 82 83 /** 84 * Dispatches the HSAIL kernel for this test case. 85 */ 86 @Override 87 public void runTest() { 88 float[] inArray = new float[num]; 89 setupArrays(inArray); 90 dispatchMethodKernel(num, outArray, inArray); 91 } 92 }