[Bug target/116854] GCC incorrectly assumes all CPUs where -march=native resolves to -march=bdver4 will have RDRND support

[pinskia at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116854

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|---                         |INVALID

--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
So bdver4 does have RDRND support just buggy bios's cause linux to disable it:

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c49a0a80137c7ca7d6ced4c812c9e07a949f6f24


That would mean GCC is doing the right thing really ... 

And why -march=native is working correctly. Just QT breaks because it tries to
decode -march=native into -march=bdver4 without doing the rest.

So invalid.