A test version of GMP is available that that re-instates a new feature of the previous 6.1.0-1 release:
Speedup for Intel Broadwell and Skylake though assembly code making use of new ADX instructions. The previously reported problems with that code have been discussed with upstream and the test release contains an unreleased upstream patch that is supposed to fix it. Please test and report back on the main Cygwin mailing list. -- *** CYGWIN-ANNOUNCE UNSUBSCRIBE INFO *** If you want to unsubscribe from the cygwin-announce mailing list, look at the "List-Unsubscribe: " tag in the email header of this message. Send email to the address specified there. It will be in the format: cygwin-announce-unsubscribe-you=yourdomain....@cygwin.com If you need more information on unsubscribing, start reading here: http://sourceware.org/lists.html#unsubscribe-simple Please read *all* of the information on unsubscribing that is available starting at this URL. -- Problem reports: http://cygwin.com/problems.html FAQ: http://cygwin.com/faq/ Documentation: http://cygwin.com/docs.html Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple