gcc/testsuite/gcc.dg/tree-ssa/cunroll-3.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O2 -fdump-tree-cunrolli-details" } */
   3 int a[1];
   4 void
   5 test(int c)
   6 {
   7   int i;
   8   for (i=0;i<c;i++)
   9     {
  10       a[i]=5;
  11     }
  12 }
  13 /* If we start duplicating headers prior curoll, this loop will have 0 iterations.  */
  14
  15 /* { dg-final { scan-tree-dump "loop with 1 iterations completely unrolled" "cunrolli"} } */