graphite-dependences.c (scop_get_reads_and_writes): Change output parameters to references.

2017-10-17  Richard Biener  <rguenther@suse.de>

	* graphite-dependences.c (scop_get_reads_and_writes): Change
	output parameters to references.

From-SVN: r253813

gcc/ChangeLog

+2017-10-17  Richard Biener  <rguenther@suse.de>
+
+	* graphite-dependences.c (scop_get_reads_and_writes): Change
+	output parameters to references.
+
 2017-10-17  Jackson Woodruff  <jackson.woodruff@arm.com>
 
 	PR 71026/tree-optimization

gcc/graphite-dependences.c

@@ -67,9 +67,9 @@ add_pdr_constraints (poly_dr_p pdr, poly_bb_p pbb)
    reads are returned in READS and writes in MUST_WRITES and MAY_WRITES.  */
 
 static void
-scop_get_reads_and_writes (scop_p scop, isl_union_map *reads,
-			   isl_union_map *must_writes,
-			   isl_union_map *may_writes)
+scop_get_reads_and_writes (scop_p scop, isl_union_map *&reads,
+			   isl_union_map *&must_writes,
+			   isl_union_map *&may_writes)
 {
   int i, j;
   poly_bb_p pbb;