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Subject: [Bug c++/106311] [12/13 Regression] internal compiler error in
 redeclare_class_template
Date: Tue, 26 Jul 2022 12:04:53 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D106311

--- Comment #2 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The trunk branch has been updated by Marek Polacek <mpolacek@gcc.gnu.org>:

https://gcc.gnu.org/g:2333b58c9892667545d0c2c3ecd2d7b947197511

commit r13-1841-g2333b58c9892667545d0c2c3ecd2d7b947197511
Author: Marek Polacek <polacek@redhat.com>
Date:   Fri Jul 15 09:51:50 2022 -0400

    c++: ICE with erroneous template redeclaration [PR106311]

    Here we ICE trying to get DECL_SOURCE_LOCATION of the parm that happens
    to be error_mark_node in this ill-formed test.  I kept running into this
    while reducing code, so it'd be good to have it fixed.

            PR c++/106311

    gcc/cp/ChangeLog:

            * pt.cc (redeclare_class_template): Check DECL_P before accessi=
ng
            DECL_SOURCE_LOCATION.

    gcc/testsuite/ChangeLog:

            * g++.dg/template/redecl5.C: New test.=