compiler-rt/test/builtins/Unit/truncdfsf2vfp_test.c

   1 // RUN: %clang_builtins %s %librt -o %t && %run %t
   2 // REQUIRES: librt_has_truncdfsf2vfp
   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 __truncdfsf2vfp(double a);
  11
  12 #if defined(__arm__) && defined(__ARM_FP) && (__ARM_FP & 0x8)
  13 int test__truncdfsf2vfp(double a)
  14 {
  15     float actual = __truncdfsf2vfp(a);
  16     float expected = a;
  17     if (actual != expected)
  18         printf("error in test__truncdfsf2vfp(%f) = %f, expected %f\n",
  19                a, actual, expected);
  20     return actual != expected;
  21 }
  22 #endif
  23
  24 int main()
  25 {
  26 #if defined(__arm__) && defined(__ARM_FP) && (__ARM_FP & 0x8)
  27     if (test__truncdfsf2vfp(0.0))
  28         return 1;
  29     if (test__truncdfsf2vfp(1.0))
  30         return 1;
  31     if (test__truncdfsf2vfp(-1.0))
  32         return 1;
  33     if (test__truncdfsf2vfp(3.1415926535))
  34         return 1;
  35     if (test__truncdfsf2vfp(123.456))
  36         return 1;
  37 #else
  38     printf("skipped\n");
  39 #endif
  40     return 0;
  41 }