[Bug c++/85140] [6 Regression] ICE with invalid use of alignas

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85140

--- Comment #7 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Mon Jun 25 17:42:12 2018
New Revision: 262089

URL: https://gcc.gnu.org/viewcvs?rev=262089&root=gcc&view=rev
Log:
        Backported from mainline
        2018-04-03  Jakub Jelinek  <jakub@redhat.com>

        PR c++/85140
        * name-lookup.c (handle_namespace_attrs): Return early if attributes
        is error_mark_node.

        * g++.dg/cpp0x/gen-attrs-64.C: New test.

Added:
    branches/gcc-6-branch/gcc/testsuite/g++.dg/cpp0x/gen-attrs-64.C
Modified:
    branches/gcc-6-branch/gcc/cp/ChangeLog
    branches/gcc-6-branch/gcc/cp/name-lookup.c
    branches/gcc-6-branch/gcc/testsuite/ChangeLog