[Bug c++/85710] [8/9 Regression] Enabling memset-elt-size warning causes ICE on memset of template member array

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85710

--- Comment #2 from Jason Merrill <jason at gcc dot gnu.org> ---
Author: jason
Date: Wed Jun  6 15:14:12 2018
New Revision: 261238

URL: https://gcc.gnu.org/viewcvs?rev=261238&root=gcc&view=rev
Log:
        PR c++/85710 - ICE with -Wmemset-elt-size.
c-family/
        * c-warn.c (warn_for_memset): Don't crash on incomplete element type.
cp/
        * semantics.c (finish_call_expr): Call warn_for_memset here.
        * parser.c (cp_parser_postfix_expression): Not here.
        (literal_integer_zerop): No longer static.
        * pt.c (build_non_dependent_expr): Don't wrap CONST_DECL.

Added:
    trunk/gcc/testsuite/g++.dg/warn/Wmemset-elt-size1.C
Modified:
    trunk/gcc/c-family/ChangeLog
    trunk/gcc/c-family/c-warn.c
    trunk/gcc/cp/ChangeLog
    trunk/gcc/cp/cp-tree.h
    trunk/gcc/cp/parser.c
    trunk/gcc/cp/pt.c
    trunk/gcc/cp/semantics.c