From: Rich Felker <dalias@aerifal.cx>
Date: Sat, 17 Mar 2012 23:29:00 +0000 (-0400)
Subject: optimize x86 feclearexcept
X-Git-Url: http://nsz.repo.hu/git/?p=musl;a=commitdiff_plain;h=316e024f63af0d0d2bb0df3dfce2620f4be827d1;hp=316e024f63af0d0d2bb0df3dfce2620f4be827d1

optimize x86 feclearexcept

if all exception flags will be cleared, we can avoid the expensive
store/reload of the environment and just use the fnclex instruction.
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