b42e978f29
The C and C++ FEs when parsing attributes already canonicalize them (i.e. if they start with __ and end with __ substrings, we remove those). lookup_attribute already verifies in gcc_assert that the first character of name is not an underscore, and even lookup_scoped_attribute_spec doesn't attempt to canonicalize the namespace it is passed. But for some historic reason it was canonicalizing the name argument, which misbehaves when an attribute starts with ____ and ends with ____. I believe it is just wrong to try to canonicalize lookup_scope_attribute_spec name attribute, it should have been canonicalized already, in other spots where it is called it is already canonicalized before. 2024-02-12 Jakub Jelinek <jakub@redhat.com> PR c++/113674 * attribs.cc (extract_attribute_substring): Remove. (lookup_scoped_attribute_spec): Don't call it. * c-c++-common/Wattributes-3.c: New test. |
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