gcc/testsuite/gdc.dg/torture/gdc171.d

   1 // https://bugzilla.gdcproject.org/show_bug.cgi?id=171
   2 // { dg-do run }
   3 // { dg-skip-if "needs gcc/config.d" { ! d_runtime } }
   4
   5 void test171a()
   6 {
   7     int count = 0;
   8     short a = -1;
   9     while (a != 0)
  10     {
  11         a >>>= 1;
  12         count++;
  13         assert(count <= 16);
  14     }
  15 }
  16
  17 void test171b()
  18 {
  19     uint[3] lhs = [99, 201, 300],
  20             rhs = [-1, 0, 0];
  21     long t = 0;
  22
  23     for (int i = 0; i < 3; i++)
  24     {
  25         t += lhs[i];
  26         t -= rhs[i];
  27         lhs[i] = cast(uint) t;
  28         t >>= uint.sizeof * 8;
  29     }
  30
  31     assert(lhs == [100, 200, 300]);
  32 }
  33
  34 void main()
  35 {
  36     test171a();
  37     test171b();
  38 }