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

   1 //===-- truncdfsf2vfp_test.c - Test __truncdfsf2vfp -----------------------===//
   2 //
   3 //                     The LLVM Compiler Infrastructure
   4 //
   5 // This file is dual licensed under the MIT and the University of Illinois Open
   6 // Source Licenses. See LICENSE.TXT for details.
   7 //
   8 //===----------------------------------------------------------------------===//
   9 //
  10 // This file tests __truncdfsf2vfp for the compiler_rt library.
  11 //
  12 //===----------------------------------------------------------------------===//
  13
  14 #include "int_lib.h"
  15 #include <stdio.h>
  16 #include <stdlib.h>
  17 #include <math.h>
  18
  19
  20 extern COMPILER_RT_ABI float __truncdfsf2vfp(double a);
  21
  22 #if __arm__
  23 int test__truncdfsf2vfp(double a)
  24 {
  25     float actual = __truncdfsf2vfp(a);
  26     float expected = a;
  27     if (actual != expected)
  28         printf("error in test__truncdfsf2vfp(%f) = %f, expected %f\n",
  29                a, actual, expected);
  30     return actual != expected;
  31 }
  32 #endif
  33
  34 int main()
  35 {
  36 #if __arm__
  37     if (test__truncdfsf2vfp(0.0))
  38         return 1;
  39     if (test__truncdfsf2vfp(1.0))
  40         return 1;
  41     if (test__truncdfsf2vfp(-1.0))
  42         return 1;
  43     if (test__truncdfsf2vfp(3.1415926535))
  44         return 1;
  45     if (test__truncdfsf2vfp(123.456))
  46         return 1;
  47 #else
  48     printf("skipped\n");
  49 #endif
  50     return 0;
  51 }