1 //===-- subvsi3_test.c - Test __subvsi3 -----------------------------------===// 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 __subvsi3 for the compiler_rt library. 11 // 12 //===----------------------------------------------------------------------===// 13 14 #include "int_lib.h" 15 #include <stdio.h> 16 #include <stdlib.h> 17 18 // Returns: a - b 19 20 // Effects: aborts if a - b overflows 21 22 COMPILER_RT_ABI si_int __subvsi3(si_int a, si_int b); 23 24 int test__subvsi3(si_int a, si_int b) 25 { 26 si_int x = __subvsi3(a, b); 27 si_int expected = a - b; 28 if (x != expected) 29 printf("error in test__subvsi3(0x%X, 0x%X) = %d, expected %d\n", 30 a, b, x, expected); 31 return x != expected; 32 } 33 34 int main() 35 { 36 // test__subvsi3(0x80000000, 1); // should abort 37 // test__subvsi3(0, 0x80000000); // should abort 38 // test__subvsi3(1, 0x80000000); // should abort 39 // test__subvsi3(0x7FFFFFFF, -1); // should abort 40 // test__subvsi3(-2, 0x7FFFFFFF); // should abort 41 42 if (test__subvsi3(0x80000000, -1)) 43 return 1; 44 if (test__subvsi3(0x80000000, 0)) 45 return 1; 46 if (test__subvsi3(-1, 0x80000000)) 47 return 1; 48 if (test__subvsi3(0x7FFFFFFF, 1)) 49 return 1; 50 if (test__subvsi3(0x7FFFFFFF, 0)) 51 return 1; 52 if (test__subvsi3(1, 0x7FFFFFFF)) 53 return 1; 54 if (test__subvsi3(0, 0x7FFFFFFF)) 55 return 1; 56 if (test__subvsi3(-1, 0x7FFFFFFF)) 57 return 1; 58 59 return 0; 60 } 61
