isl_tab: check for obviously empty tableaus after discovering an equality
commit76a244d27e873d57efaaf07498995779414eb1c4
authorSven Verdoolaege <skimo@kotnet.org>
Fri, 18 Feb 2011 19:44:49 +0000 (18 20:44 +0100)
committerSven Verdoolaege <skimo@kotnet.org>
Mon, 21 Feb 2011 10:52:06 +0000 (21 11:52 +0100)
tree75926a637d2c5f068481f7729043e09ebf14df3e
parentd20327e32a2be929523d101a35e1af90f9cedb3f
isl_tab: check for obviously empty tableaus after discovering an equality

After a new equality has been discovered, it may turn out that one
of the coordinates is stuck at a non-integral value.  If so, we can
mark the tableau empty.

Signed-off-by: Sven Verdoolaege <skimo@kotnet.org>
isl_tab.c