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

   1 // RUN: %clang_builtins %s %librt -o %t && %run %t
   2 // REQUIRES: librt_has_fixdfsivfp
   3
   4 //===-- fixdfsivfp_test.c - Test __fixdfsivfp -----------------------------===//
   5 //
   6 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   7 // See https://llvm.org/LICENSE.txt for license information.
   8 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   9 //
  10 //===----------------------------------------------------------------------===//
  11 //
  12 // This file tests __fixdfsivfp for the compiler_rt library.
  13 //
  14 //===----------------------------------------------------------------------===//
  15
  16 #include <stdio.h>
  17 #include <stdlib.h>
  18 #include <math.h>
  19
  20
  21 extern int __fixdfsivfp(double a);
  22
  23 #if __arm__ && __VFP_FP__
  24 int test__fixdfsivfp(double a)
  25 {
  26         int actual = __fixdfsivfp(a);
  27         int expected = a;
  28     if (actual != expected)
  29         printf("error in test__fixdfsivfp(%f) = %d, expected %d\n",
  30                a, actual, expected);
  31     return actual != expected;
  32 }
  33 #endif
  34
  35 int main()
  36 {
  37 #if __arm__ && __VFP_FP__
  38     if (test__fixdfsivfp(0.0))
  39         return 1;
  40     if (test__fixdfsivfp(1.0))
  41         return 1;
  42     if (test__fixdfsivfp(-1.0))
  43         return 1;
  44     if (test__fixdfsivfp(2147483647))
  45         return 1;
  46     if (test__fixdfsivfp(-2147483648.0))
  47         return 1;
  48 #else
  49     printf("skipped\n");
  50 #endif
  51     return 0;
  52 }