post/lib_powerpc/fpu/20010114-2.c

   1 /*
   2  * Copyright (C) 2007
   3  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
   4  *
   5  * See file CREDITS for list of people who contributed to this
   6  * project.
   7  *
   8  * This program is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU General Public License as
  10  * published by the Free Software Foundation; either version 2 of
  11  * the License, or (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  21  * MA 02111-1307 USA
  22  */
  23 /*
  24  * This file is originally a part of the GCC testsuite.
  25  */
  26
  27 #include <common.h>
  28
  29 #include <post.h>
  30
  31 #if CONFIG_POST & CONFIG_SYS_POST_FPU
  32
  33 GNU_FPOST_ATTR
  34
  35 static float rintf (float x)
  36 {
  37         volatile float TWO23 = 8388608.0;
  38
  39         if (__builtin_fabs (x) < TWO23)
  40         {
  41                 if (x > 0.0)
  42                 {
  43                         x += TWO23;
  44                         x -= TWO23;
  45                 }
  46                 else if (x < 0.0)
  47                 {
  48                         x = TWO23 - x;
  49                         x = -(x - TWO23);
  50                 }
  51         }
  52
  53         return x;
  54 }
  55
  56 int fpu_post_test_math2 (void)
  57 {
  58         if (rintf (-1.5) != -2.0) {
  59                 post_log ("Error in FPU math2 test\n");
  60                 return -1;
  61         }
  62         return 0;
  63 }
  64
  65 #endif /* CONFIG_POST & CONFIG_SYS_POST_FPU */