isl_schedule_node_gist: drop identity expansions
commit0e3d425857dee73e68cb98a064d5f8d5e1de55b3
authorSven Verdoolaege <skimo@kotnet.org>
Mon, 21 Mar 2016 15:45:52 +0000 (21 16:45 +0100)
committerSven Verdoolaege <skimo@kotnet.org>
Sun, 27 Mar 2016 10:02:13 +0000 (27 12:02 +0200)
tree81e6a66f13a176643ebcc64ffef87bc8443f16a8
parentac0e80c11e6e31f8d8dbb342fb055e8f6082d1ae
isl_schedule_node_gist: drop identity expansions

If the simplification results in expansion nodes with an identity
expansion, then these are no longer needed and can therefore be removed.

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