isl_basic_map_shift_div: special case zero shift
commit993ba67d9bcc950d553948d8e8c17f0803df334e
authorSven Verdoolaege <skimo@kotnet.org>
Tue, 4 Oct 2016 08:10:28 +0000 (4 10:10 +0200)
committerSven Verdoolaege <skimo@kotnet.org>
Mon, 19 Dec 2016 09:05:20 +0000 (19 10:05 +0100)
treee48fb7d238c35b9f08d9ab8c53529fdfbee58775
parentcd7d76013ff9b91d67c39b7e1bedbe15e91b6f9b
isl_basic_map_shift_div: special case zero shift

In particular, there is no need to iterate over the constraints
when nothing needs to be changed.

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