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...ample, OS X, AVX is not enabled by default, so the sin() function uses legacy SSE instructions. Users can still turn on AVX in their applications. -Eli -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20130920/2f8b19c0/attachment.html>

Hi Eli, Thanks for the feedback. Please see below. - Gao. From: Eli Friedman [mailto:eli.friedman at gmail.com] Sent: Thursday, September 19, 2013 12:31 PM To: Gao, Yunzhong Cc: llvmdev at cs.uiuc.edu Subject: Re: [LLVMdev] Proposal to improve vzeroupper optimization strategy > This is essentially equivalent to "don't insert vzeroupper anywhere", as > far as I can tell. (The