[Bug c++/105186] [9/10 Regression] ICE in canonicalize_attr_name, at attribs.h:146

["cvs-commit at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105186

--- Comment #9 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-9 branch has been updated by Jakub Jelinek
<jakub@gcc.gnu.org>:

https://gcc.gnu.org/g:6547662a2afdac90311bcd286f87e98e6bec03d0

commit r9-10147-g6547662a2afdac90311bcd286f87e98e6bec03d0
Author: Jakub Jelinek <jakub@redhat.com>
Date:   Mon Apr 11 10:41:07 2022 +0200

    c-family: Initialize ridpointers for __int128 etc. [PR105186]

    The following testcase ICEs with C++ and is incorrectly rejected with C.
    The reason is that both FEs use ridpointers identifiers for CPP_KEYWORD
    and value or u.value for CPP_NAME e.g. when parsing attributes or OpenMP
    directives etc., like:
             /* Save away the identifier that indicates which attribute
                this is.  */
             identifier = (token->type == CPP_KEYWORD)
               /* For keywords, use the canonical spelling, not the
                  parsed identifier.  */
               ? ridpointers[(int) token->keyword]
               : id_token->u.value;

             identifier = canonicalize_attr_name (identifier);
    I've tried to change those to use ridpointers only if non-NULL and
otherwise
    use the value/u.value even for CPP_KEYWORDS, but that was a large 10 hunks
    patch.

    The following patch instead just initializes ridpointers for the __intNN
    keywords.  It can't be done earlier before we record_builtin_type as there
    are 2 different spellings and if we initialize those ridpointers early, the
    second record_builtin_type fails miserably.

    2022-04-11  Jakub Jelinek  <jakub@redhat.com>

            PR c++/105186
            * c-common.c (c_common_nodes_and_builtins): After registering
__int%d
            and __int%d__ builtin types, initialize corresponding ridpointers
            entry.

            * c-c++-common/pr105186.c: New test.

    (cherry picked from commit 083e8e66d2e90992fa83a53bfc3553dfa91abda1)