LXR uboot/post/lib_powerpc/fpu/20001122-1.c

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