1 //===-- negvdi2_test.c - Test __negvdi2 -----------------------------------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 // 10 // This file tests __negvdi2 for the compiler_rt library. 11 // 12 //===----------------------------------------------------------------------===// 13 14 #include "int_lib.h" 15 #include <stdio.h> 16 17 // Returns: -a 18 19 // Effects: aborts if -a overflows 20 21 di_int __negvdi2(di_int a); 22 23 int test__negvdi2(di_int a) 24 { 25 di_int x = __negvdi2(a); 26 di_int expected = -a; 27 if (x != expected) 28 printf("error in __negvdi2(0x%llX) = %lld, expected %lld\n", 29 a, x, expected); 30 return x != expected; 31 } 32 33 int main() 34 { 35 // if (test__negvdi2(0x8000000000000000LL)) // should abort 36 // return 1; 37 if (test__negvdi2(0x0000000000000000LL)) 38 return 1; 39 if (test__negvdi2(0x0000000000000001LL)) 40 return 1; 41 if (test__negvdi2(0x0000000000000002LL)) 42 return 1; 43 if (test__negvdi2(0x7FFFFFFFFFFFFFFELL)) 44 return 1; 45 if (test__negvdi2(0x7FFFFFFFFFFFFFFFLL)) 46 return 1; 47 if (test__negvdi2(0x8000000000000001LL)) 48 return 1; 49 if (test__negvdi2(0x8000000000000002LL)) 50 return 1; 51 if (test__negvdi2(0xFFFFFFFFFFFFFFFELL)) 52 return 1; 53 if (test__negvdi2(0xFFFFFFFFFFFFFFFFLL)) 54 return 1; 55 56 return 0; 57 } 58
