[Bug bootstrap/68271] [6 Regression] Boostrap fails on x86_64-apple-darwin14 at r230084

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68271

--- Comment #5 from Richard Biener <rguenth at gcc dot gnu.org> ---
Also look at vms-c.c which registers 14.