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AVX on Cygwin
- From: Achim Gratz <Stromeko at nexgo dot de>
- To: cygwin-apps at cygwin dot com
- Date: Thu, 26 Nov 2015 19:17:55 +0100
- Subject: AVX on Cygwin
- Authentication-results: sourceware.org; auth=none
You may have noted that the recent gmp update makes problems on some
machines and two of the three reports come from Broadwell CPU. There is
one thing that did indeed change with the update and that is use of the
AVX ADC instruction on Broadwell/Skylake. Is it possible that somehow
the stack model or some register save/restore is different on Cygwin
that would produce that problem? I can only test on SandyBridge and
IvyBridge for Intel and these have no problem.
Regards,
Achim.
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