compiler-rt/test/builtins/Unit/gtdf2vfp_test.c

   1 // RUN: %clang_builtins %s %librt -o %t && %run %t
   2 // REQUIRES: librt_has_gtdf2vfp
   3
   4 //===-- gtdf2vfp_test.c - Test __gtdf2vfp ---------------------------------===//
   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 __gtdf2vfp for the compiler_rt library.
  13 //
  14 //===----------------------------------------------------------------------===//
  15
  16 #include <stdlib.h>
  17 #include <stdint.h>
  18 #include <stdio.h>
  19 #include <math.h>
  20
  21
  22 extern int __gtdf2vfp(double a, double b);
  23
  24 #if __arm__ && __VFP_FP__
  25 int test__gtdf2vfp(double a, double b)
  26 {
  27     int actual = __gtdf2vfp(a, b);
  28         int expected = (a > b) ? 1 : 0;
  29     if (actual != expected)
  30         printf("error in __gtdf2vfp(%f, %f) = %d, expected %d\n",
  31                a, b, actual, expected);
  32     return actual != expected;
  33 }
  34 #endif
  35
  36 int main()
  37 {
  38 #if __arm__ && __VFP_FP__
  39     if (test__gtdf2vfp(0.0, 0.0))
  40         return 1;
  41     if (test__gtdf2vfp(1.0, 0.0))
  42         return 1;
  43     if (test__gtdf2vfp(-1.0, -2.0))
  44         return 1;
  45     if (test__gtdf2vfp(-2.0, -1.0))
  46         return 1;
  47     if (test__gtdf2vfp(HUGE_VALF, 1.0))
  48         return 1;
  49     if (test__gtdf2vfp(1.0, HUGE_VALF))
  50         return 1;
  51 #else
  52     printf("skipped\n");
  53 #endif
  54     return 0;
  55 }