[Bug lto/61886] [4.9/5/6 Regression] LTO breaks fread with _FORTIFY_SOURCE=2

[hubicka at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61886

--- Comment #43 from Jan Hubicka <hubicka at gcc dot gnu.org> ---
Author: hubicka
Date: Tue Dec  8 22:02:23 2015
New Revision: 231429

URL: https://gcc.gnu.org/viewcvs?rev=231429&root=gcc&view=rev
Log:

        PR ipa/61886
        * varpool.c (varpool_node::get_availability): Recurse only on
        weakrefs with definition in the target.
        (symbol_table::remove_unreferenced_decls): Keep aliases in the
boundary.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/varpool.c