1 //===-- divmodsi4_test.c - Test __divmodsi4 -------------------------------===// 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 __divmodsi4 for the compiler_rt library. 11 // 12 //===----------------------------------------------------------------------===// 13 14 #include "int_lib.h" 15 #include <stdio.h> 16 17 // Returns: a / b 18 19 extern si_int __divmodsi4(si_int a, si_int b, si_int* rem); 20 21 22 int test__divmodsi4(si_int a, si_int b, 23 si_int expected_result, si_int expected_rem) 24 { 25 si_int rem; 26 si_int result = __divmodsi4(a, b, &rem); 27 if (result != expected_result) { 28 printf("error in __divmodsi4: %d / %d = %d, expected %d\n", 29 a, b, result, expected_result); 30 return 1; 31 } 32 if (rem != expected_rem) { 33 printf("error in __divmodsi4: %d mod %d = %d, expected %d\n", 34 a, b, rem, expected_rem); 35 return 1; 36 } 37 38 return 0; 39 } 40 41 42 int main() 43 { 44 if (test__divmodsi4(0, 1, 0, 0)) 45 return 1; 46 if (test__divmodsi4(0, -1, 0, 0)) 47 return 1; 48 49 if (test__divmodsi4(2, 1, 2, 0)) 50 return 1; 51 if (test__divmodsi4(2, -1, -2, 0)) 52 return 1; 53 if (test__divmodsi4(-2, 1, -2, 0)) 54 return 1; 55 if (test__divmodsi4(-2, -1, 2, 0)) 56 return 1; 57 58 if (test__divmodsi4(7, 5, 1, 2)) 59 return 1; 60 if (test__divmodsi4(-7, 5, -1, -2)) 61 return 1; 62 if (test__divmodsi4(19, 5, 3, 4)) 63 return 1; 64 if (test__divmodsi4(19, -5, -3, 4)) 65 return 1; 66 67 if (test__divmodsi4(0x80000000, 8, 0xf0000000, 0)) 68 return 1; 69 if (test__divmodsi4(0x80000007, 8, 0xf0000001, -1)) 70 return 1; 71 72 return 0; 73 } 74
