sys/external/bsd/compiler_rt/dist/test/Unit/umodti3_test.c

   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 #if __x86_64
  15
  16 #include "int_lib.h"
  17 #include <stdio.h>
  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 #if __x86_64
  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 }