1 //===-- subdf3vfp_test.c - Test __subdf3vfp -------------------------------===//
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 __subdf3vfp for the compiler_rt library.
11 //
12 //===----------------------------------------------------------------------===//
13 
14 #include <stdio.h>
15 #include <stdlib.h>
16 #include <math.h>
17 
18 
19 #if __arm__
20 extern double __subdf3vfp(double a, double b);
21 
22 int test__subdf3vfp(double a, double b)
23 {
24     double actual = __subdf3vfp(a, b);
25     double expected = a - b;
26     if (actual != expected)
27         printf("error in test__subdf3vfp(%f, %f) = %f, expected %f\n",
28                a, b, actual, expected);
29     return actual != expected;
30 }
31 #endif
32 
33 int main()
34 {
35 #if __arm__
36     if (test__subdf3vfp(1.0, 1.0))
37         return 1;
38     if (test__subdf3vfp(1234.567, 765.4321))
39         return 1;
40     if (test__subdf3vfp(-123.0, -678.0))
41         return 1;
42     if (test__subdf3vfp(0.0, -0.0))
43         return 1;
44 #else
45     printf("skipped\n");
46 #endif
47     return 0;
48 }
49