| // RUN: %clang_builtins %s %librt -o %t && %run %t |
| // REQUIRES: librt_has_subvsi3 |
| |
| #include "int_lib.h" |
| #include <stdio.h> |
| #include <stdlib.h> |
| |
| // Returns: a - b |
| |
| // Effects: aborts if a - b overflows |
| |
| COMPILER_RT_ABI si_int __subvsi3(si_int a, si_int b); |
| |
| int test__subvsi3(si_int a, si_int b) |
| { |
| si_int x = __subvsi3(a, b); |
| si_int expected = a - b; |
| if (x != expected) |
| printf("error in test__subvsi3(0x%X, 0x%X) = %d, expected %d\n", |
| a, b, x, expected); |
| return x != expected; |
| } |
| |
| int main() |
| { |
| // test__subvsi3(0x80000000, 1); // should abort |
| // test__subvsi3(0, 0x80000000); // should abort |
| // test__subvsi3(1, 0x80000000); // should abort |
| // test__subvsi3(0x7FFFFFFF, -1); // should abort |
| // test__subvsi3(-2, 0x7FFFFFFF); // should abort |
| |
| if (test__subvsi3(0x80000000, -1)) |
| return 1; |
| if (test__subvsi3(0x80000000, 0)) |
| return 1; |
| if (test__subvsi3(-1, 0x80000000)) |
| return 1; |
| if (test__subvsi3(0x7FFFFFFF, 1)) |
| return 1; |
| if (test__subvsi3(0x7FFFFFFF, 0)) |
| return 1; |
| if (test__subvsi3(1, 0x7FFFFFFF)) |
| return 1; |
| if (test__subvsi3(0, 0x7FFFFFFF)) |
| return 1; |
| if (test__subvsi3(-1, 0x7FFFFFFF)) |
| return 1; |
| |
| return 0; |
| } |
