diff options
Diffstat (limited to 'gcc/cgraph.cc')
| -rw-r--r-- | gcc/cgraph.cc | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/gcc/cgraph.cc b/gcc/cgraph.cc index e41e5ad..f93259a 100644 --- a/gcc/cgraph.cc +++ b/gcc/cgraph.cc @@ -2629,6 +2629,54 @@ cgraph_node::set_malloc_flag (bool malloc_p) return changed; } +/* Worker to set malloc flag. */ +static void +add_detected_attribute_1 (cgraph_node *node, const char *attr, bool *changed) +{ + if (!lookup_attribute (attr, DECL_ATTRIBUTES (node->decl))) + { + DECL_ATTRIBUTES (node->decl) = tree_cons (get_identifier (attr), + NULL_TREE, DECL_ATTRIBUTES (node->decl)); + *changed = true; + } + + ipa_ref *ref; + FOR_EACH_ALIAS (node, ref) + { + cgraph_node *alias = dyn_cast<cgraph_node *> (ref->referring); + if (alias->get_availability () > AVAIL_INTERPOSABLE) + add_detected_attribute_1 (alias, attr, changed); + } + + for (cgraph_edge *e = node->callers; e; e = e->next_caller) + if (e->caller->thunk + && (e->caller->get_availability () > AVAIL_INTERPOSABLE)) + add_detected_attribute_1 (e->caller, attr, changed); +} + +/* Add attribyte ATTR to function and its aliases. */ + +bool +cgraph_node::add_detected_attribute (const char *attr) +{ + bool changed = false; + + if (get_availability () > AVAIL_INTERPOSABLE) + add_detected_attribute_1 (this, attr, &changed); + else + { + ipa_ref *ref; + + FOR_EACH_ALIAS (this, ref) + { + cgraph_node *alias = dyn_cast<cgraph_node *> (ref->referring); + if (alias->get_availability () > AVAIL_INTERPOSABLE) + add_detected_attribute_1 (alias, attr, &changed); + } + } + return changed; +} + /* Worker to set noreturng flag. */ static void set_noreturn_flag_1 (cgraph_node *node, bool noreturn_p, bool *changed) |