[Bug target/94707] [8/9 Regression] class with empty base passed incorrectly with -std=c++17 on powerpc64le

[cvs-commit at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94707

--- Comment #14 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Jakub Jelinek <jakub@gcc.gnu.org>:

https://gcc.gnu.org/g:239cfd92e9ce5014a7616f692e0c6d4f337227b8

commit r10-7910-g239cfd92e9ce5014a7616f692e0c6d4f337227b8
Author: Jakub Jelinek <jakub@redhat.com>
Date:   Thu Apr 23 14:43:18 2020 +0200

    rs6000: Small improvement to the C++17 ABI fix [PR94707]

    Anyway, based on IRC discussion with Richard Sandiford on IRC, we should
    probably test type uids instead of type pointers because type uids aren't
    reused, but type pointers in a very bad luck case could be, and having the
    static var at filescope and GTY((deletable)) is an overkill (and with costs
    during GC time).

    2020-04-23  Jakub Jelinek  <jakub@redhat.com>

            PR target/94707
            * config/rs6000/rs6000-call.c
(rs6000_discover_homogeneous_aggregate):
            Use TYPE_UID (TYPE_MAIN_VARIANT (type)) instead of type to check
            if the same type has been diagnosed most recently already.