[Bug c++/81575] [7/8 Regression] ICE on C++ code: in cp_build_addr_expr_1, at cp/typeck.c:5793

["jakub at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81575

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |jakub at gcc dot gnu.org,
                   |                            |jason at gcc dot gnu.org
   Target Milestone|---                         |7.2
            Summary|ICE on C++ code: in         |[7/8 Regression] ICE on C++
                   |cp_build_addr_expr_1, at    |code: in
                   |cp/typeck.c:5793            |cp_build_addr_expr_1, at
                   |                            |cp/typeck.c:5793

--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Weird, at least clang 5.0.0 (trunk 304785) accepts it with
warning: incompatible pointer to integer conversion assigning to 'int' from
'const class (anonymous class at pr81575.C:1:1) *'
pedwarn.
The ICE started with r246954.  Before that it was rejected with:
pr81575.C:6:8: error: invalid use of non-lvalue array
   c += a;
        ^
pr81575.C:6:8: error:   in evaluation of ‘operator+=(int, class<unnamed> [1])’