1 // RUN: %clang_builtins %s %librt -o %t && %run %t
2 //===-- subvsi3_test.c - Test __subvsi3 -----------------------------------===//
4 // The LLVM Compiler Infrastructure
6 // This file is dual licensed under the MIT and the University of Illinois Open
7 // Source Licenses. See LICENSE.TXT for details.
9 //===----------------------------------------------------------------------===//
11 // This file tests __subvsi3 for the compiler_rt library.
13 //===----------------------------------------------------------------------===//
21 // Effects: aborts if a - b overflows
23 COMPILER_RT_ABI si_int __subvsi3(si_int a, si_int b);
25 int test__subvsi3(si_int a, si_int b)
27 si_int x = __subvsi3(a, b);
28 si_int expected = a - b;
30 printf("error in test__subvsi3(0x%X, 0x%X) = %d, expected %d\n",
37 // test__subvsi3(0x80000000, 1); // should abort
38 // test__subvsi3(0, 0x80000000); // should abort
39 // test__subvsi3(1, 0x80000000); // should abort
40 // test__subvsi3(0x7FFFFFFF, -1); // should abort
41 // test__subvsi3(-2, 0x7FFFFFFF); // should abort
43 if (test__subvsi3(0x80000000, -1))
45 if (test__subvsi3(0x80000000, 0))
47 if (test__subvsi3(-1, 0x80000000))
49 if (test__subvsi3(0x7FFFFFFF, 1))
51 if (test__subvsi3(0x7FFFFFFF, 0))
53 if (test__subvsi3(1, 0x7FFFFFFF))
55 if (test__subvsi3(0, 0x7FFFFFFF))
57 if (test__subvsi3(-1, 0x7FFFFFFF))