diff options
Diffstat (limited to 'gcc/tree.c')
| -rw-r--r-- | gcc/tree.c | 46 |
1 files changed, 46 insertions, 0 deletions
@@ -203,6 +203,9 @@ static GTY ((if_marked ("tree_decl_map_marked_p"), param_is (struct tree_decl_ma static GTY ((if_marked ("tree_decl_map_marked_p"), param_is (struct tree_decl_map))) htab_t value_expr_for_decl; +static GTY ((if_marked ("tree_vec_map_marked_p"), param_is (struct tree_vec_map))) + htab_t debug_args_for_decl; + static GTY ((if_marked ("tree_priority_map_marked_p"), param_is (struct tree_priority_map))) htab_t init_priority_for_decl; @@ -6016,6 +6019,49 @@ decl_value_expr_insert (tree from, tree to) *(struct tree_decl_map **) loc = h; } +/* Lookup a vector of debug arguments for FROM, and return it if we + find one. */ + +VEC(tree, gc) ** +decl_debug_args_lookup (tree from) +{ + struct tree_vec_map *h, in; + + if (!DECL_HAS_DEBUG_ARGS_P (from)) + return NULL; + gcc_checking_assert (debug_args_for_decl != NULL); + in.base.from = from; + h = (struct tree_vec_map *) + htab_find_with_hash (debug_args_for_decl, &in, DECL_UID (from)); + if (h) + return &h->to; + return NULL; +} + +/* Insert a mapping FROM->empty vector of debug arguments in the value + expression hashtable. */ + +VEC(tree, gc) ** +decl_debug_args_insert (tree from) +{ + struct tree_vec_map *h; + void **loc; + + if (DECL_HAS_DEBUG_ARGS_P (from)) + return decl_debug_args_lookup (from); + if (debug_args_for_decl == NULL) + debug_args_for_decl = htab_create_ggc (64, tree_vec_map_hash, + tree_vec_map_eq, 0); + h = ggc_alloc_tree_vec_map (); + h->base.from = from; + h->to = NULL; + loc = htab_find_slot_with_hash (debug_args_for_decl, h, DECL_UID (from), + INSERT); + *(struct tree_vec_map **) loc = h; + DECL_HAS_DEBUG_ARGS_P (from) = 1; + return &h->to; +} + /* Hashing of types so that we don't make duplicates. The entry point is `type_hash_canon'. */ |