[Bug libstdc++/87809] [8/9 Regression] Can't create empty std::optional>

[hubicka at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87809

--- Comment #9 from Jan Hubicka <hubicka at gcc dot gnu.org> ---
Author: hubicka
Date: Tue Mar 19 14:53:43 2019
New Revision: 269799

URL: https://gcc.gnu.org/viewcvs?rev=269799&root=gcc&view=rev
Log:

        PR lto/87809
        PR lto/89335
        * tree.c (free_lang_data_in_decl): Do not free context of C++
        destrutors.

        * g++.dg/lto/pr87089_0.C: New testcase.
        * g++.dg/lto/pr87089_1.C: New testcase.
        * g++.dg/lto/pr89335_0.C: New testcase.

Added:
    trunk/gcc/testsuite/g++.dg/lto/pr87089_0.C
    trunk/gcc/testsuite/g++.dg/lto/pr87089_1.C
    trunk/gcc/testsuite/g++.dg/lto/pr89335_0.C
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree.c