[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
Bug 61886 depends on bug 25140, which changed state.

Bug 25140 Summary: aliases, including weakref, break alias analysis
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=25140

           What    |Removed                     |Added
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             Status|ASSIGNED                    |RESOLVED
         Resolution|---                         |FIXED