post/lib_powerpc/fpu/20010114-2.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 static float rintf (float x)
  20 {
  21         volatile float TWO23 = 8388608.0;
  22
  23         if (__builtin_fabs (x) < TWO23)
  24         {
  25                 if (x > 0.0)
  26                 {
  27                         x += TWO23;
  28                         x -= TWO23;
  29                 }
  30                 else if (x < 0.0)
  31                 {
  32                         x = TWO23 - x;
  33                         x = -(x - TWO23);
  34                 }
  35         }
  36
  37         return x;
  38 }
  39
  40 int fpu_post_test_math2 (void)
  41 {
  42         if (rintf (-1.5) != -2.0) {
  43                 post_log ("Error in FPU math2 test\n");
  44                 return -1;
  45         }
  46         return 0;
  47 }
  48
  49 #endif /* CONFIG_POST & CONFIG_SYS_POST_FPU */