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1/* Common definitions for libm tests for vector functions.
2 Copyright (C) 2014-2022 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
9
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
14
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <https://www.gnu.org/licenses/>. */
18
19#define TEST_MATHVEC 1
20#define TEST_NARROW 0
21#define TEST_ERRNO 0
22#define TEST_EXCEPTIONS 0
23
24#define CNCT(x, y) x ## y
25#define CONCAT(a, b) CNCT (a, b)
26
27#define WRAPPER_NAME(function) CONCAT (function, VEC_SUFF)
28#define FUNC_TEST(function) WRAPPER_NAME (FUNC (function))
29
30/* This macro is used in VECTOR_WRAPPER macros for vector tests. */
31#define TEST_VEC_LOOP(vec, len) \
32 do \
33 { \
34 for (i = 1; i < len; i++) \
35 { \
36 if ((FLOAT) vec[0] != (FLOAT) vec[i]) \
37 { \
38 vec[0] = (FLOAT) vec[0] + 0.1; \
39 break; \
40 } \
41 } \
42 } \
43 while (0)
44
45#define INIT_VEC_LOOP(vec, val, len) \
46 do \
47 { \
48 for (i = 0; i < len; i++) \
49 { \
50 vec[i] = val; \
51 } \
52 } \
53 while (0)
54
55#define WRAPPER_DECL_f(function) extern FLOAT function (FLOAT);
56#define WRAPPER_DECL_ff(function) extern FLOAT function (FLOAT, FLOAT);
57#define WRAPPER_DECL_fFF(function) extern void function (FLOAT, FLOAT *, FLOAT *);
58
59/* Wrapper from scalar to vector function. */
60#define VECTOR_WRAPPER(scalar_func, vector_func) \
61extern VEC_TYPE vector_func (VEC_TYPE); \
62FLOAT scalar_func (FLOAT x) \
63{ \
64 int i; \
65 VEC_TYPE mx; \
66 INIT_VEC_LOOP (mx, x, VEC_LEN); \
67 VEC_TYPE mr = vector_func (mx); \
68 TEST_VEC_LOOP (mr, VEC_LEN); \
69 return ((FLOAT) mr[0]); \
70}
71
72/* Wrapper from scalar 2 argument function to vector one. */
73#define VECTOR_WRAPPER_ff(scalar_func, vector_func) \
74extern VEC_TYPE vector_func (VEC_TYPE, VEC_TYPE); \
75FLOAT scalar_func (FLOAT x, FLOAT y) \
76{ \
77 int i; \
78 VEC_TYPE mx, my; \
79 INIT_VEC_LOOP (mx, x, VEC_LEN); \
80 INIT_VEC_LOOP (my, y, VEC_LEN); \
81 VEC_TYPE mr = vector_func (mx, my); \
82 TEST_VEC_LOOP (mr, VEC_LEN); \
83 return ((FLOAT) mr[0]); \
84}
85
86/* Wrapper from scalar 3 argument function to vector one. */
87#define VECTOR_WRAPPER_fFF(scalar_func, vector_func) \
88extern void vector_func (VEC_TYPE, VEC_TYPE *, VEC_TYPE *); \
89void scalar_func (FLOAT x, FLOAT * r, FLOAT * r1) \
90{ \
91 int i; \
92 VEC_TYPE mx, mr, mr1; \
93 INIT_VEC_LOOP (mx, x, VEC_LEN); \
94 vector_func (mx, &mr, &mr1); \
95 TEST_VEC_LOOP (mr, VEC_LEN); \
96 TEST_VEC_LOOP (mr1, VEC_LEN); \
97 *r = (FLOAT) mr[0]; \
98 *r1 = (FLOAT) mr1[0]; \
99 return; \
100}
101

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source code of glibc/math/test-math-vector.h