[Bug lto/78529] [7 Regression] gcc.c-torture/execute/builtins/strcat-chk.c failed with lto/O2

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78529

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |hubicka at gcc dot gnu.org,
                   |                            |rguenth at gcc dot gnu.org
          Component|tree-optimization           |lto

--- Comment #28 from Richard Biener <rguenth at gcc dot gnu.org> ---
>From the description it might be worth to check the behavior when using gold
vs. BFD.  But yes, symbols from the standard runtime have long been a problem
with LTO and the way we do linking "twice".  OTOH the linker _does_ see the
memset
symbol but it seems to ignore it?  And AFAIK the resolution we get from the
linker isn't able to tell us that there's another provider of a symbol.