tile: fix some -Wsign-compare warnings
authorChris Metcalf <cmetcalf@tilera.com>
Fri, 9 Aug 2013 20:53:50 +0000 (16:53 -0400)
committerChris Metcalf <cmetcalf@tilera.com>
Fri, 30 Aug 2013 15:56:50 +0000 (11:56 -0400)
Normally the build doesn't include these warnings, but at one
point I built with -Wsign-compare, and noticed a few things that
are technically bugs.  This change fixes those things.

Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>

No differences found