gcc/testsuite/gcc.dg/tree-ssa/loop-38.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O2 -fdump-tree-cunrolli-details" } */
   3 int a[10];
   4 int b[11];
   5 t(int n)
   6 {
   7    int i;
   8    int sum = 0;
   9    for (i=0;i<n;i++)
  10      if (q())
  11         sum+=a[i];
  12      else
  13         sum+=b[i];
  14   return sum;
  15 }
  16 /* { dg-final { scan-tree-dump "Found better loop bound 11" "cunrolli" } } */
  17 /* { dg-final { scan-tree-dump "Loop 1 iterates at most 11 times" "cunrolli" } } */
  18 /* { dg-final { cleanup-tree-dump "cunrolli" } } */