[Bug c++/90383] [9/10 Regression] GCC generates invalid constexpr copy/move assignment operators for types with trailing padding. (Again)

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90383

--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Fri May 10 08:19:44 2019
New Revision: 271058

URL: https://gcc.gnu.org/viewcvs?rev=271058&root=gcc&view=rev
Log:
        PR c++/90383
        * tree-inline.h (struct copy_body_data): Add do_not_fold member.
        * tree-inline.c (remap_gimple_op_r): Avoid folding expressions if
        id->do_not_fold.
        (copy_tree_body_r): Likewise.
        (copy_fn): Set id.do_not_fold to true.

        * g++.dg/cpp1y/constexpr-90383-1.C: New test.
        * g++.dg/cpp1y/constexpr-90383-2.C: New test.

Added:
    trunk/gcc/testsuite/g++.dg/cpp1y/constexpr-90383-1.C
    trunk/gcc/testsuite/g++.dg/cpp1y/constexpr-90383-2.C
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-inline.c
    trunk/gcc/tree-inline.h