1 //===-- absvsi2_test.c - Test __absvsi2 -----------------------------------===// 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 __absvsi2 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 si_int __absvsi2(si_int a); 23 24 int test__absvsi2(si_int a) 25 { 26 si_int x = __absvsi2(a); 27 si_int expected = a; 28 if (expected < 0) 29 expected = -expected; 30 if (x != expected || expected < 0) 31 printf("error in __absvsi2(0x%X) = %d, expected positive %d\n", 32 a, x, expected); 33 return x != expected; 34 } 35 36 int main() 37 { 38 // if (test__absvsi2(0x80000000)) // should abort 39 // return 1; 40 if (test__absvsi2(0x00000000)) 41 return 1; 42 if (test__absvsi2(0x00000001)) 43 return 1; 44 if (test__absvsi2(0x00000002)) 45 return 1; 46 if (test__absvsi2(0x7FFFFFFE)) 47 return 1; 48 if (test__absvsi2(0x7FFFFFFF)) 49 return 1; 50 if (test__absvsi2(0x80000001)) 51 return 1; 52 if (test__absvsi2(0x80000002)) 53 return 1; 54 if (test__absvsi2(0xFFFFFFFE)) 55 return 1; 56 if (test__absvsi2(0xFFFFFFFF)) 57 return 1; 58 59 int i; 60 for (i = 0; i < 10000; ++i) 61 if (test__absvsi2(rand())) 62 return 1; 63 64 return 0; 65 } 66
