contrib/gcc/tree-cfg.c

1236   /* Protect the loop latches.  */
1291   /* Also update the trees stored in loop structures.  */
1294       struct loop *loop;
1298 	  loop = current_loops->parray[i];
1299 	  if (loop)
1300 	    substitute_in_loop_info (loop, name, val);
1327 	 loop closed ssa phi nodes.  */
2010   /* If we remove the header or the latch of a loop, mark the loop for
2014       struct loop *loop = bb->loop_father;
2016       if (loop->latch == bb
2017 	  || loop->header == bb)
2019 	  loop->latch = NULL;
2020 	  loop->header = NULL;
2022 	  /* Also clean up the information associated with the loop.  Updating
2026 	  free_numbers_of_iterations_estimates_loop (loop);
2087      loop above, so the last statement we process is the first statement
3473 	 its address taken.  This does not affect the loop itself
4371 	  /* During loop unrolling the target of the latch edge is copied.
4416    to the duplicate of the region.  SSA form, dominance and loop information
4429   struct loop *loop = entry->dest->loop_father;
4446 	 same loop.  */
4447       if (region[i]->loop_father != loop)
4451 	  && region[i] == loop->header)
4455   loop->copy = loop;
4457   /* In case the function is used for loop header copying (which is the primary
4459   if (loop->header == entry->dest)
4462       loop->copy = loop->outer;
4464       if (!dominated_by_p (CDI_DOMINATORS, loop->latch, exit->src))
4509   copy_bbs (region, n_region, region_copy, &exit, 1, &exit_copy, loop,
4528       loop->header = exit->dest;
4529       loop->latch = exit->src;
5138 static void print_loop (FILE *, struct loop *, int);
5172 print_loop (FILE *file, struct loop *loop, int indent)
5177   if (loop == NULL)
5184   /* Print the loop's header.  */
5185   fprintf (file, "%sloop_%d\n", s_indent, loop->num);
5187   /* Print the loop's body.  */
5190     if (bb->loop_father == loop)
5205   print_loop (file, loop->inner, indent + 2);
5207   print_loop (file, loop->next, indent);
5212    of a loop, pretty print the loop structure on FILE.  */
5608   tree_duplicate_loop_to_header_edge, /* duplicate loop for trees */