1 //===-- udivti3_test.c - Test __udivti3 -----------------------------------===// 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 __udivti3 for the compiler_rt library. 11 // 12 //===----------------------------------------------------------------------===// 13 14 #include "int_lib.h" 15 #include <stdio.h> 16 17 #ifdef CRT_HAS_128BIT 18 19 // Returns: a / b 20 21 COMPILER_RT_ABI tu_int __udivti3(tu_int a, tu_int b); 22 23 int test__udivti3(tu_int a, tu_int b, tu_int expected_q) 24 { 25 tu_int q = __udivti3(a, b); 26 if (q != expected_q) 27 { 28 utwords at; 29 at.all = a; 30 utwords bt; 31 bt.all = b; 32 utwords qt; 33 qt.all = q; 34 utwords expected_qt; 35 expected_qt.all = expected_q; 36 printf("error in __udivti3: 0x%llX%.16llX / 0x%llX%.16llX = " 37 "0x%llX%.16llX, expected 0x%llX%.16llX\n", 38 at.s.high, at.s.low, bt.s.high, bt.s.low, qt.s.high, qt.s.low, 39 expected_qt.s.high, expected_qt.s.low); 40 } 41 return q != expected_q; 42 } 43 44 #endif 45 46 int main() 47 { 48 #ifdef CRT_HAS_128BIT 49 if (test__udivti3(0, 1, 0)) 50 return 1; 51 if (test__udivti3(2, 1, 2)) 52 return 1; 53 if (test__udivti3(make_tu(0x8000000000000000uLL, 0), 1, 54 make_tu(0x8000000000000000uLL, 0))) 55 return 1; 56 if (test__udivti3(make_tu(0x8000000000000000uLL, 0), 2, 57 make_tu(0x4000000000000000uLL, 0))) 58 return 1; 59 if (test__udivti3(make_tu(0xFFFFFFFFFFFFFFFFuLL, 0xFFFFFFFFFFFFFFFFuLL), 2, 60 make_tu(0x7FFFFFFFFFFFFFFFuLL, 0xFFFFFFFFFFFFFFFFuLL))) 61 return 1; 62 63 #else 64 printf("skipped\n"); 65 #endif 66 return 0; 67 } 68
