FreeBSD/contrib/gcc/tree-ssa-alias-warnings.c
/* Set the entry corresponding to KEY, but only if the entry
   already exists and its value is NULL_TREE.  Otherwise, do nothing.  */
Set the entry corresponding to KEY, but only if the entry
already exists and its value is NULL_TREE.  Otherwise, do nothing.
Set the entry corresponding to KEY but only if the entry already exists and its value is NULL_TREE . Otherwise do nothing .
static inline void
maybe_add_match (htab_t ref_map, struct tree_map *key)
{
  struct tree_map *found = htab_find (ref_map, key);
  if (found && !found->to)
    found->to = key->to;
}
static inline void maybe_add_match ( htab_t ref_map , struct tree_map * key ) { struct tree_map * found = htab_find ( ref_map , key ) ; if ( found && ! found -> to ) found -> to = key -> to ; }
Set the entry corresponding to KEY, but only if the entry
already exists and its value is NULL_TREE.
Set the entry corresponding to KEY but only if the entry already exists and its value is NULL_TREE .