Inline assembly needs "cc" clobber to avoid miscompilation

[Torbjörn Granlund]

tg at gmplib.org (Torbjörn Granlund) writes:

  I agree that adding a "cc" does not hurt, even if gcc does not need it
  for all platforms.  The absence of it for ppc is for exactly that
  reason; gcc does not need it for this platform.

  I am testing a more complete patch for this omission.

I created the attached patch.  Unfortunately, clang 7.0.1-8 still fails
mpn/t-div.

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(The __CLOBBER_CC construct is for GCC 1 compatibility.  Yes, this is
obsolete.  Now is not the time to clean it up.)


-- 
Torbjörn
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