[Bug c++/86546] ICE on invalid: tree_class_check_failed()

[paolo at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86546

--- Comment #3 from paolo at gcc dot gnu.org <paolo at gcc dot gnu.org> ---
Author: paolo
Date: Tue Aug 28 15:01:15 2018
New Revision: 263921

URL: https://gcc.gnu.org/viewcvs?rev=263921&root=gcc&view=rev
Log:
/cp
2018-08-28  Paolo Carlini  <paolo.carl...@oracle.com>

        PR c++/86546
        * decl.c (finish_case_label): If the type is erroneous early
        return error_mark_node.

/testsuite
2018-08-28  Paolo Carlini  <paolo.carl...@oracle.com>

        PR c++/86546
        * g++.dg/other/switch4.C: New.

Added:
    trunk/gcc/testsuite/g++.dg/other/switch4.C
Modified:
    trunk/gcc/cp/ChangeLog
    trunk/gcc/cp/decl.c
    trunk/gcc/testsuite/ChangeLog