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Subject: [Bug c++/99120] [8/9/10 Regression] ICE in -Wshadow in templated
 member function
Date: Fri, 09 Apr 2021 22:38:09 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D99120

--- Comment #4 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-10 branch has been updated by Marek Polacek
<mpolacek@gcc.gnu.org>:

https://gcc.gnu.org/g:c7d7c15540d5173f76b570bd457e866f09a17722

commit r10-9686-gc7d7c15540d5173f76b570bd457e866f09a17722
Author: Marek Polacek <polacek@redhat.com>
Date:   Fri Mar 5 10:41:41 2021 -0500

    c++: ICE with -Wshadow and enumerator in template [PR99120]

    We crash here, because in a template, an enumerator doesn't have
    a type until we've called finish_enum_value_list.  But our -Wshadow
    implementation, check_local_shadow, is called when we pushdecl in
    build_enumerator, which takes place before finish_enum_value_list.

    gcc/cp/ChangeLog:

            PR c++/99120
            * name-lookup.c (check_local_shadow): Check if the type of decl
            is non-null before checking TYPE_PTR*.

    gcc/testsuite/ChangeLog:

            PR c++/99120
            * g++.dg/warn/Wshadow-17.C: New test.

    (cherry picked from commit c2e64c33d9d903f0a52565ad98300feea0ffc580)=