[Bug bootstrap/85922] bootstrapping fails with -O3 because gcc 8.1.0 generates unknown instruction pshufb

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85922

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

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

--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
Workaround: do not use -O3 or -march=native

When you are using -march=native then we expect you to have a binutils version
that can handle your native ISA.