From: Linus Torvalds <torvalds@linux-foundation.org>
Date: Thu, 6 Aug 2009 02:42:15 +0000 (-0700)
Subject: block-sha1: try to use rol/ror appropriately
X-Git-Tag: v1.6.5-rc0~64^2~14
X-Git-Url: https://git.lorimer.id.au/gitweb.git/diff_plain/b8e48a89b8f581eaf95b57782bb8e620ca30e968?hp=b8e48a89b8f581eaf95b57782bb8e620ca30e968

block-sha1: try to use rol/ror appropriately

Use the one with the smaller constant.  It _can_ generate slightly
smaller code (a constant of 1 is special), but perhaps more importantly
it's possibly faster on any uarch that does a rotate with a loop.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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