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1 /* |
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2 * Copyright (c) 2018 Red Hat, Inc. All rights reserved. |
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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4 * |
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5 * This code is free software; you can redistribute it and/or modify it |
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6 * under the terms of the GNU General Public License version 2 only, as |
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7 * published by the Free Software Foundation. |
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8 * |
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9 * This code is distributed in the hope that it will be useful, but WITHOUT |
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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12 * version 2 for more details (a copy is included in the LICENSE file that |
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13 * accompanied this code). |
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14 * |
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15 * You should have received a copy of the GNU General Public License version |
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16 * 2 along with this work; if not, write to the Free Software Foundation, |
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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18 * |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
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22 */ |
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23 |
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24 #include <jni.h> |
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25 |
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26 #ifdef __cplusplus |
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27 extern "C" { |
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28 #endif |
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29 |
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30 /* Fletcher checksum. This is a nonlinear function which detects both */ |
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31 /* missing or otherwise incorrect arguments and arguments in the wrong */ |
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32 /* order. */ |
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33 static jfloat fcombine(jfloat f[], int len) { |
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34 int i; |
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35 jfloat sum = 0, sum_of_sums = 0; |
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36 for (i = 0; i < len; i++) { |
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37 sum += f[i]; |
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38 sum_of_sums += sum; |
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39 } |
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40 return sum + sum_of_sums * sum; |
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41 } |
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42 |
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43 static jdouble combine(jdouble f[], int len) { |
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44 int i; |
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45 double sum = 0, sum_of_sums = 0; |
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46 for (i = 0; i < len; i++) { |
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47 sum += f[i]; |
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48 sum_of_sums += sum; |
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49 } |
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50 return sum + sum_of_sums * sum; |
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51 } |
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52 |
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53 JNIEXPORT jfloat JNICALL Java_compiler_floatingpoint_TestFloatSyncJNIArgs_combine15floats |
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54 (JNIEnv *env, jclass cls, |
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55 jfloat f1, jfloat f2, jfloat f3, jfloat f4, |
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56 jfloat f5, jfloat f6, jfloat f7, jfloat f8, |
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57 jfloat f9, jfloat f10, jfloat f11, jfloat f12, |
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58 jfloat f13, jfloat f14, jfloat f15) { |
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59 |
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60 jfloat f[15]; |
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61 f[0] = f1; f[1] = f2; f[2] = f3; f[3] = f4; f[4] = f5; |
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62 f[5] = f6; f[6] = f7; f[7] = f8; f[8] = f9; f[9] = f10; |
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63 f[10] = f11; f[11] = f12; f[12] = f13; f[13] = f14; f[14] = f15; |
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64 |
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65 return fcombine(f, sizeof f / sizeof f[0]); |
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66 } |
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67 |
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68 JNIEXPORT jdouble JNICALL Java_compiler_floatingpoint_TestFloatSyncJNIArgs_combine15doubles |
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69 (JNIEnv *env, jclass cls, |
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70 jdouble f1, jdouble f2, jdouble f3, jdouble f4, |
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71 jdouble f5, jdouble f6, jdouble f7, jdouble f8, |
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72 jdouble f9, jdouble f10, jdouble f11, jdouble f12, |
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73 jdouble f13, jdouble f14, jdouble f15) { |
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74 |
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75 jdouble f[15]; |
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76 f[0] = f1; f[1] = f2; f[2] = f3; f[3] = f4; f[4] = f5; |
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77 f[5] = f6; f[6] = f7; f[7] = f8; f[8] = f9; f[9] = f10; |
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78 f[10] = f11; f[11] = f12; f[12] = f13; f[13] = f14; f[14] = f15; |
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79 |
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80 return combine(f, sizeof f / sizeof f[0]); |
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81 } |
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82 |
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83 |
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84 #ifdef __cplusplus |
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85 } |
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86 #endif |