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      1 //===-- umodti3_test.c - Test __umodti3 -----------------------------------===//
      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 __umodti3 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 tu_int __umodti3(tu_int a, tu_int b);
     22 
     23 int test__umodti3(tu_int a, tu_int b, tu_int expected_r)
     24 {
     25     tu_int r = __umodti3(a, b);
     26     if (r != expected_r)
     27     {
     28         utwords at;
     29         at.all = a;
     30         utwords bt;
     31         bt.all = b;
     32         utwords rt;
     33         rt.all = r;
     34         utwords expected_rt;
     35         expected_rt.all = expected_r;
     36         printf("error in __umodti3: 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, rt.s.high, rt.s.low,
     39                expected_rt.s.high, expected_rt.s.low);
     40     }
     41     return r != expected_r;
     42 }
     43 
     44 #endif
     45 
     46 int main()
     47 {
     48 #ifdef CRT_HAS_128BIT
     49     if (test__umodti3(0, 1, 0))
     50         return 1;
     51     if (test__umodti3(2, 1, 0))
     52         return 1;
     53     if (test__umodti3(make_tu(0x8000000000000000uLL, 0), 1, 0x0uLL))
     54         return 1;
     55     if (test__umodti3(make_tu(0x8000000000000000uLL, 0), 2, 0x0uLL))
     56         return 1;
     57     if (test__umodti3(make_tu(0xFFFFFFFFFFFFFFFFuLL, 0xFFFFFFFFFFFFFFFFuLL),
     58                       2, 0x1uLL))
     59         return 1;
     60 
     61 #else
     62     printf("skipped\n");
     63 #endif
     64     return 0;
     65 }
     66