Home | History | Annotate | Download | only in Unit
      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 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