math/test-math-vector.h

   1 /* Common definitions for libm tests for vector functions.
   2    Copyright (C) 2014-2016 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    <http://www.gnu.org/licenses/>.  */
  18
  19 #define TEST_MATHVEC 1
  20 #define TEST_FINITE 0
  21 #define TEST_ERRNO 0
  22
  23 #define CNCT(x, y) x ## y
  24 #define CONCAT(a, b) CNCT (a, b)
  25
  26 #define WRAPPER_NAME(function) CONCAT (function, VEC_SUFF)
  27
  28 /* This macro is used in VECTOR_WRAPPER macros for vector tests.  */
  29 #define TEST_VEC_LOOP(vec, len)                                 \
  30   do                                                            \
  31     {                                                           \
  32       for (i = 1; i < len; i++)                                 \
  33         {                                                       \
  34           if ((FLOAT) vec[0] != (FLOAT) vec[i])                 \
  35             {                                                   \
  36               vec[0] = (FLOAT) vec[0] + 0.1;                    \
  37               break;                                            \
  38             }                                                   \
  39         }                                                       \
  40     }                                                           \
  41   while (0)
  42
  43 #define INIT_VEC_LOOP(vec, val, len)                            \
  44   do                                                            \
  45     {                                                           \
  46       for (i = 0; i < len; i++)                                 \
  47         {                                                       \
  48           vec[i] = val;                                         \
  49         }                                                       \
  50     }                                                           \
  51   while (0)
  52
  53 #define WRAPPER_DECL(function) extern FLOAT function (FLOAT);
  54 #define WRAPPER_DECL_ff(function) extern FLOAT function (FLOAT, FLOAT);
  55 #define WRAPPER_DECL_fFF(function) extern void function (FLOAT, FLOAT *, FLOAT *);
  56
  57 /* Wrapper from scalar to vector function.  */
  58 #define VECTOR_WRAPPER(scalar_func, vector_func) \
  59 extern VEC_TYPE vector_func (VEC_TYPE);         \
  60 FLOAT scalar_func (FLOAT x)                     \
  61 {                                               \
  62   int i;                                        \
  63   VEC_TYPE mx;                                  \
  64   INIT_VEC_LOOP (mx, x, VEC_LEN);               \
  65   VEC_TYPE mr = vector_func (mx);               \
  66   TEST_VEC_LOOP (mr, VEC_LEN);                  \
  67   return ((FLOAT) mr[0]);                       \
  68 }
  69
  70 /* Wrapper from scalar 2 argument function to vector one.  */
  71 #define VECTOR_WRAPPER_ff(scalar_func, vector_func)     \
  72 extern VEC_TYPE vector_func (VEC_TYPE, VEC_TYPE);       \
  73 FLOAT scalar_func (FLOAT x, FLOAT y)            \
  74 {                                               \
  75   int i;                                        \
  76   VEC_TYPE mx, my;                              \
  77   INIT_VEC_LOOP (mx, x, VEC_LEN);               \
  78   INIT_VEC_LOOP (my, y, VEC_LEN);               \
  79   VEC_TYPE mr = vector_func (mx, my);           \
  80   TEST_VEC_LOOP (mr, VEC_LEN);                  \
  81   return ((FLOAT) mr[0]);                       \
  82 }
  83
  84 /* Wrapper from scalar 3 argument function to vector one.  */
  85 #define VECTOR_WRAPPER_fFF(scalar_func, vector_func)    \
  86 extern void vector_func (VEC_TYPE, VEC_TYPE *, VEC_TYPE *);     \
  87 void scalar_func (FLOAT x, FLOAT * r, FLOAT * r1)               \
  88 {                                               \
  89   int i;                                        \
  90   VEC_TYPE mx, mr, mr1;                         \
  91   INIT_VEC_LOOP (mx, x, VEC_LEN);               \
  92   vector_func (mx, &mr, &mr1);                  \
  93   TEST_VEC_LOOP (mr, VEC_LEN);                  \
  94   TEST_VEC_LOOP (mr1, VEC_LEN);                 \
  95   *r = (FLOAT) mr[0];                           \
  96   *r1 = (FLOAT) mr1[0];                         \
  97   return;                                       \
  98 }