1 //===-- absvdi2_test.c - Test __absvdi2 -----------------------------------===// 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 __absvdi2 for the compiler_rt library. 11 // 12 //===----------------------------------------------------------------------===// 13 14 #include "int_lib.h" 15 #include <stdio.h> 16 #include <stdlib.h> 17 18 // Returns: absolute value 19 20 // Effects: aborts if abs(x) < 0 21 22 di_int __absvdi2(di_int a); 23 24 int test__absvdi2(di_int a) 25 { 26 di_int x = __absvdi2(a); 27 di_int expected = a; 28 if (expected < 0) 29 expected = -expected; 30 if (x != expected || expected < 0) 31 printf("error in __absvdi2(0x%llX) = %lld, expected positive %lld\n", 32 a, x, expected); 33 return x != expected; 34 } 35 36 int main() 37 { 38 // if (test__absvdi2(0x8000000000000000LL)) // should abort 39 // return 1; 40 if (test__absvdi2(0x0000000000000000LL)) 41 return 1; 42 if (test__absvdi2(0x0000000000000001LL)) 43 return 1; 44 if (test__absvdi2(0x0000000000000002LL)) 45 return 1; 46 if (test__absvdi2(0x7FFFFFFFFFFFFFFELL)) 47 return 1; 48 if (test__absvdi2(0x7FFFFFFFFFFFFFFFLL)) 49 return 1; 50 if (test__absvdi2(0x8000000000000001LL)) 51 return 1; 52 if (test__absvdi2(0x8000000000000002LL)) 53 return 1; 54 if (test__absvdi2(0xFFFFFFFFFFFFFFFELL)) 55 return 1; 56 if (test__absvdi2(0xFFFFFFFFFFFFFFFFLL)) 57 return 1; 58 59 int i; 60 for (i = 0; i < 10000; ++i) 61 if (test__absvdi2(((di_int)rand() << 32) | rand())) 62 return 1; 63 64 return 0; 65 } 66
