isl_printer_print_union_access_info: do not print empty access relations
commit2a719572ae10f0f72e4eeddc2f9abd901d184bcc
authorSven Verdoolaege <sven.verdoolaege@gmail.com>
Tue, 9 May 2017 11:56:44 +0000 (9 13:56 +0200)
committerSven Verdoolaege <sven.verdoolaege@gmail.com>
Mon, 12 Jun 2017 13:48:50 +0000 (12 15:48 +0200)
treeb669bc11d6ccdadfaad819a32963d6f12740f8a2
parente65609befa2662f3a8975c9ab18fd137e64847c5
isl_printer_print_union_access_info: do not print empty access relations

If an access relation was not specified, then there is no need to print it.
Since the access relations are empty by default, there is also no need
to print empty access relations even if they were explicitly specified.
The sink access relation on the other hand always needs to be printed,
even if it is empty, because it is used to construct
an isl_union_access_info object.

Signed-off-by: Sven Verdoolaege <sven.verdoolaege@gmail.com>
isl_flow.c