[Bug c++/83958] [7 Regression] ICE: Segmentation fault (in find_decomp_class_base)

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83958

--- Comment #7 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Sat Mar  3 13:16:27 2018
New Revision: 258172

URL: https://gcc.gnu.org/viewcvs?rev=258172&root=gcc&view=rev
Log:
        Backported from mainline
        2018-01-23  Jakub Jelinek  <jakub@redhat.com>

        PR c++/83958
        * decl.c (cp_finish_decomp): Diagnose if reference structure binding
        refers to incomplete type.

        * g++.dg/cpp1z/decomp35.C: New test.

Added:
    branches/gcc-7-branch/gcc/testsuite/g++.dg/cpp1z/decomp35.C
Modified:
    branches/gcc-7-branch/gcc/cp/ChangeLog
    branches/gcc-7-branch/gcc/cp/decl.c
    branches/gcc-7-branch/gcc/testsuite/ChangeLog