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Message-ID: <20110608034137.GA26648@openwall.com>
Date: Wed, 8 Jun 2011 07:41:37 +0400
From: Solar Designer <solar@...nwall.com>
To: john-dev@...ts.openwall.com
Subject: Re: 1.7.7-jumbo-6
Jim -
On Tue, Jun 07, 2011 at 10:37:33PM -0500, JFoug wrote:
> ----- Original Message -----
> From: "Solar Designer" <solar@...nwall.com>
> >
> >The move to SSE2 intrinsics for MD5-based hashes resulted in poor
> >performance when building with old gcc. I introduced a workaround
> >limited to "FreeBSD MD5" - that is, to have speed no worse than the
> >official 1.7.7's for these hashes even when building with old gcc.
> >This amounts to:
> >
> >+#define MD5_in_sse_intrinsics
> >#include "MD5_std.h"
> >+#undef MD5_in_sse_intrinsics
> >
> >in sse-intrinsics.c and:
> >-- clip --
>
> We might want to do the same for md5-gen, as it will likely get tied into
> intrisic (the +#define MD5_in_sse_intrinsics ... #inlcude .... +#undef
> MD5_in_sse_intrinsics)
Feel free to submit a patch against -RC3 if you like. (I am not going
to work on this now, so there's no duplicate work if you do.)
Thanks,
Alexander
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