compiler-rt/test/builtins/Unit/subsf3vfp_test.c

   1 // RUN: %clang_builtins %s %librt -o %t && %run %t
   2 // REQUIRES: librt_has_subsf3vfp
   3
   4 #include "int_lib.h"
   5 #include <stdio.h>
   6 #include <stdlib.h>
   7 #include <math.h>
   8
   9
  10 extern COMPILER_RT_ABI float __subsf3vfp(float a, float b);
  11
  12 #if defined(__arm__) && defined(__ARM_FP) && (__ARM_FP & 0x4)
  13 int test__subsf3vfp(float a, float b)
  14 {
  15     float actual = __subsf3vfp(a, b);
  16     float expected = a - b;
  17     if (actual != expected)
  18         printf("error in test__subsf3vfp(%f, %f) = %f, expected %f\n",
  19                a, b, actual, expected);
  20     return actual != expected;
  21 }
  22 #endif
  23
  24 int main()
  25 {
  26 #if defined(__arm__) && defined(__ARM_FP) && (__ARM_FP & 0x4)
  27     if (test__subsf3vfp(1.0, 1.0))
  28         return 1;
  29     if (test__subsf3vfp(1234.567, 765.4321))
  30         return 1;
  31     if (test__subsf3vfp(-123.0, -678.0))
  32         return 1;
  33     if (test__subsf3vfp(0.0, -0.0))
  34         return 1;
  35 #else
  36     printf("skipped\n");
  37 #endif
  38     return 0;
  39 }