[Bug c++/92695] P1064R0 - virtual constexpr fails if object taken from array

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92695

--- Comment #18 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Fri Dec 20 17:26:28 2019
New Revision: 279661

URL: https://gcc.gnu.org/viewcvs?rev=279661&root=gcc&view=rev
Log:
        Backported from mainline
        2019-11-28  Jakub Jelinek  <jakub@redhat.com>

        PR c++/92695
        * decl2.c (mark_used): Don't call note_vague_linkage_fn for pure
        virtual functions, even if they are declared inline.

        * g++.dg/warn/inline3.C: New test.

Added:
    branches/gcc-9-branch/gcc/testsuite/g++.dg/warn/inline3.C
Modified:
    branches/gcc-9-branch/gcc/cp/ChangeLog
    branches/gcc-9-branch/gcc/cp/decl2.c
    branches/gcc-9-branch/gcc/testsuite/ChangeLog