post/lib_powerpc/fpu/20001122-1.c

   1 /*
   2  * Copyright (C) 2007
   3  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
   4  *
   5  * SPDX-License-Identifier:     GPL-2.0+
   6  */
   7 /*
   8  * This file is originally a part of the GCC testsuite.
   9  */
  10
  11 #include <common.h>
  12
  13 #include <post.h>
  14
  15 GNU_FPOST_ATTR
  16
  17 #if CONFIG_POST & CONFIG_SYS_POST_FPU
  18
  19 int fpu_post_test_math1 (void)
  20 {
  21         volatile double a;
  22         double c, d;
  23         volatile double b;
  24
  25         d = 1.0;
  26
  27         do
  28         {
  29                 c = d;
  30                 d = c * 0.5;
  31                 b = 1 + d;
  32         } while (b != 1.0);
  33
  34         a = 1.0 + c;
  35
  36         if (a == 1.0) {
  37                 post_log ("Error in FPU math1 test\n");
  38                 return -1;
  39         }
  40
  41         return 0;
  42 }
  43
  44 #endif /* CONFIG_POST & CONFIG_SYS_POST_FPU */