math/test-math-vector.h

   1 /* Common definitions for libm tests for vector functions.
   2    Copyright (C) 2014-2015 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
  21 #define CNCT(x, y) x ## y
  22 #define CONCAT(a, b) CNCT (a, b)
  23
  24 #define WRAPPER_NAME(function) CONCAT (function, VEC_SUFF)
  25
  26 /* This macro is used in VECTOR_WRAPPER macros for vector tests.  */
  27 #define TEST_VEC_LOOP(vec, len)                                 \
  28   do                                                            \
  29     {                                                           \
  30       for (i = 1; i < len; i++)                                 \
  31         {                                                       \
  32           if ((FLOAT) vec[0] != (FLOAT) vec[i])                 \
  33             {                                                   \
  34               vec[0] = (FLOAT) vec[0] + 0.1;                    \
  35               break;                                            \
  36             }                                                   \
  37         }                                                       \
  38     }                                                           \
  39   while (0)
  40
  41 #define INIT_VEC_LOOP(vec, val, len)                            \
  42   do                                                            \
  43     {                                                           \
  44       for (i = 0; i < len; i++)                                 \
  45         {                                                       \
  46           vec[i] = val;                                         \
  47         }                                                       \
  48     }                                                           \
  49   while (0)
  50
  51 #define WRAPPER_DECL(function) extern FLOAT function (FLOAT);
  52 #define WRAPPER_DECL_ff(function) extern FLOAT function (FLOAT, FLOAT);
  53 #define WRAPPER_DECL_fFF(function) extern void function (FLOAT, FLOAT *, FLOAT *);
  54
  55 /* Wrapper from scalar to vector function.  */
  56 #define VECTOR_WRAPPER(scalar_func, vector_func) \
  57 extern VEC_TYPE vector_func (VEC_TYPE);         \
  58 FLOAT scalar_func (FLOAT x)                     \
  59 {                                               \
  60   int i;                                        \
  61   VEC_TYPE mx;                                  \
  62   INIT_VEC_LOOP (mx, x, VEC_LEN);               \
  63   VEC_TYPE mr = vector_func (mx);               \
  64   TEST_VEC_LOOP (mr, VEC_LEN);                  \
  65   return ((FLOAT) mr[0]);                       \
  66 }
  67
  68 /* Wrapper from scalar 2 argument function to vector one.  */
  69 #define VECTOR_WRAPPER_ff(scalar_func, vector_func)     \
  70 extern VEC_TYPE vector_func (VEC_TYPE, VEC_TYPE);       \
  71 FLOAT scalar_func (FLOAT x, FLOAT y)            \
  72 {                                               \
  73   int i;                                        \
  74   VEC_TYPE mx, my;                              \
  75   INIT_VEC_LOOP (mx, x, VEC_LEN);               \
  76   INIT_VEC_LOOP (my, y, VEC_LEN);               \
  77   VEC_TYPE mr = vector_func (mx, my);           \
  78   TEST_VEC_LOOP (mr, VEC_LEN);                  \
  79   return ((FLOAT) mr[0]);                       \
  80 }
  81
  82 /* Wrapper from scalar 3 argument function to vector one.  */
  83 #define VECTOR_WRAPPER_fFF(scalar_func, vector_func)    \
  84 extern void vector_func (VEC_TYPE, VEC_TYPE *, VEC_TYPE *);     \
  85 void scalar_func (FLOAT x, FLOAT * r, FLOAT * r1)               \
  86 {                                               \
  87   int i;                                        \
  88   VEC_TYPE mx, mr, mr1;                         \
  89   INIT_VEC_LOOP (mx, x, VEC_LEN);               \
  90   vector_func (mx, &mr, &mr1);                  \
  91   TEST_VEC_LOOP (mr, VEC_LEN);                  \
  92   TEST_VEC_LOOP (mr1, VEC_LEN);                 \
  93   *r = (FLOAT) mr[0];                           \
  94   *r1 = (FLOAT) mr1[0];                         \
  95   return;                                       \
  96 }