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Date: Sat, 11 Aug 2012 02:52:44 +0400
From: Solar Designer <solar@...nwall.com>
To: musl@...ts.openwall.com
Subject: Re: crypt_blowfish integration, optimization
On Fri, Aug 10, 2012 at 02:08:14PM -0400, Rich Felker wrote:
> Yes, -O3 includes -funroll-loops,
That's good.
BTW, for the version of code I posted last, going from -O2 to -O3 with
gcc 3 actually slows things down by about 8% on 32-bit x86.
> which is intelligent about choosing which loops to unroll.
Yes, except that it can't know if the function is performance-critical
or not.
Alexander
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