1 | // REQUIRES: arm-target-arch || armv6m-target-arch |
2 | // RUN: %clang_builtins %s %librt -o %t && %run %t |
3 | |
4 | #include <stdio.h> |
5 | #include <stdlib.h> |
6 | #include <math.h> |
7 | |
8 | |
9 | #if __arm__ |
10 | extern __attribute__((pcs("aapcs" ))) double __aeabi_drsub(double a, double b); |
11 | |
12 | int test__aeabi_drsub(double a, double b, double expected) |
13 | { |
14 | double actual = __aeabi_drsub(a, b); |
15 | if (actual != expected) |
16 | printf("error in __aeabi_drsub(%f, %f) = %f, expected %f\n" , |
17 | a, b, actual, expected); |
18 | return actual != expected; |
19 | } |
20 | #endif |
21 | |
22 | int main() |
23 | { |
24 | #if __arm__ |
25 | if (test__aeabi_drsub(1.0, 1.0, 0.0)) |
26 | return 1; |
27 | if (test__aeabi_drsub(1234.567, 765.4321, -469.134900)) |
28 | return 1; |
29 | if (test__aeabi_drsub(-123.0, -678.0, -555.0)) |
30 | return 1; |
31 | if (test__aeabi_drsub(0.0, -0.0, 0.0)) |
32 | return 1; |
33 | #else |
34 | printf(format: "skipped\n" ); |
35 | #endif |
36 | return 0; |
37 | } |
38 | |