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Subject: [Bug c++/98355] [9/10/11 Regression] ICE in has_attribute, at
 c-family/c-attribs.c:5628
Date: Mon, 01 Feb 2021 15:21:43 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D98355

--- Comment #6 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Marek Polacek <mpolacek@gcc.gnu.org>:

https://gcc.gnu.org/g:bab669f2fc643cb1673aecd177eec1c773e9e48e

commit r11-7012-gbab669f2fc643cb1673aecd177eec1c773e9e48e
Author: Marek Polacek <polacek@redhat.com>
Date:   Fri Jan 29 11:29:25 2021 -0500

    c++: Improve sorry for __builtin_has_attribute [PR98355]

    __builtin_has_attribute doesn't work in templates yet (bug 92104), so
    in r11-471 I added a sorry.  But that only caught type-dependent
    expressions and we also want to sorry on value-dependent expressions.
    This patch uses uses_template_parms, but guarded with p_t_d, because
    u_t_p sets p_t_d and then v_d_e_p considers variables with reference
    types value-dependent, which breaks builtin-has-attribute-6.c.

    This is a regression and I also plan to apply this to gcc-10.

    gcc/cp/ChangeLog:

            PR c++/98355
            * parser.c (cp_parser_has_attribute_expression): Use
            uses_template_parms instead of type_dependent_expression_p.

    gcc/testsuite/ChangeLog:

            PR c++/98355
            * g++.dg/ext/builtin-has-attribute2.C: New test.=