gcc/testsuite/gcc.dg/tree-ssa/pr23391.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O2" } */
   3
   4 void
   5 foo (int N)
   6 {
   7   int C;
   8   double R;
   9
  10   R = 0.0;
  11   do
  12     {
  13       R += 0.001;
  14       C = (int) (R * N);
  15       if (-R * N <= R * N)
  16         {
  17           C++;
  18         }
  19     }
  20   while (C < 0);
  21
  22   return;
  23 }