diff options
Diffstat (limited to 'gcc/c/c-decl.cc')
| -rw-r--r-- | gcc/c/c-decl.cc | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/gcc/c/c-decl.cc b/gcc/c/c-decl.cc index 740982e..bac8e6c 100644 --- a/gcc/c/c-decl.cc +++ b/gcc/c/c-decl.cc @@ -4480,11 +4480,34 @@ handle_nodiscard_attribute (tree *node, tree name, tree /*args*/, } return NULL_TREE; } + +/* Handle the standard [[noreturn]] attribute. */ + +static tree +handle_std_noreturn_attribute (tree *node, tree name, tree args, + int flags, bool *no_add_attrs) +{ + /* Unlike GNU __attribute__ ((noreturn)), the standard [[noreturn]] + only applies to functions, not function pointers. */ + if (TREE_CODE (*node) == FUNCTION_DECL) + return handle_noreturn_attribute (node, name, args, flags, no_add_attrs); + else + { + pedwarn (input_location, OPT_Wattributes, + "standard %qE attribute can only be applied to functions", + name); + *no_add_attrs = true; + return NULL_TREE; + } +} + /* Table of supported standard (C2x) attributes. */ const struct attribute_spec std_attribute_table[] = { /* { name, min_len, max_len, decl_req, type_req, fn_type_req, affects_type_identity, handler, exclude } */ + { "_Noreturn", 0, 0, false, false, false, false, + handle_std_noreturn_attribute, NULL }, { "deprecated", 0, 1, false, false, false, false, handle_deprecated_attribute, NULL }, { "fallthrough", 0, 0, false, false, false, false, @@ -4493,6 +4516,8 @@ const struct attribute_spec std_attribute_table[] = handle_unused_attribute, NULL }, { "nodiscard", 0, 1, false, false, false, false, handle_nodiscard_attribute, NULL }, + { "noreturn", 0, 0, false, false, false, false, + handle_std_noreturn_attribute, NULL }, { NULL, 0, 0, false, false, false, false, NULL, NULL } }; |