register corruption under MS Windows / x86-64

[Torbjörn Granlund]

Vincent Lefevre <vincent at vinc17.net> writes:

  One of those who saw the bug with MPFR 4 RC1 + GMP dev said that
  everything seems fine with the latest GMP dev:
  
    https://sympa.inria.fr/sympa/arc/mpfr/2017-12/msg00067.html

Thanks.

-- 
Torbjörn
Please encrypt, key id 0xC8601622