gcc/testsuite/gcc.dg/tree-ssa/vrp05.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O2 -fdump-tree-vrp1" } */
   3
   4 foo (int k, int j)
   5 {
   6   if (k >= 10)
   7     {
   8       if (j > k)
   9         {
  10           /* We should fold this to if (1).  */
  11           if (j > 0)
  12             return j;
  13         }
  14     }
  15
  16   return j;
  17 }
  18
  19 /* { dg-final { scan-tree-dump-times "Folding predicate j_.*to 1" 1 "vrp1" } } */
  20 /* { dg-final { cleanup-tree-dump "vrp1" } } */