[Bug target/55610] cc1 is calling munmap() on part of itself on darwin

[iains at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=55610

--- Comment #7 from Iain Sandoe <iains at gcc dot gnu.org> ---
(In reply to Andrew Pinski from comment #6)
> Does this work now?

It looks like Mike's suggestion works, but I don't recall seeing a patch - and
the code for the unmap is present in trunk.  

@Jack, did you post a patch?