gcc/testsuite/gcc.dg/pr107570.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-Os" } */
   3
   4 long int n;
   5
   6 void
   7 foo (int *p, int x)
   8 {
   9   for (;;)
  10     {
  11       for (*p = 0; *p < 1; ++*p)
  12         {
  13           n += *p < 0;
  14           if (n < x)
  15             {
  16               while (x < 1)
  17                 ++x;
  18
  19               __builtin_unreachable ();
  20             }
  21         }
  22
  23       p = &x;
  24     }
  25 }