graphite-scop-detection.c (scop_detection::build_scop_depth): Rewrite, fold in ...

2017-09-26  Richard Biener  <rguenther@suse.de>

	* graphite-scop-detection.c (scop_detection::build_scop_depth): Rewrite,
	fold in ...
	(scop_detection::build_scop_breadth): ... this.  Removed.
	(scop_detection::loop_is_valid_in_scop): Fold into single caller.
	(scop_detection::harmful_stmt_in_bb): Likewise.
	(scop_detection::graphite_can_represent_stmt): Likewise.
	(scop_detection::loop_body_is_valid_scop): Likewise.  Remove recursion.
	(scop_detection::can_represent_loop): Remove recursion, fold in ...
	(scop_detection::can_represent_loop_1): ... this.  Removed.
	(scop_detection::harmful_loop_in_region): Simplify after inlining
	the above and remove more quadraticness.
	(build_scops): Adjust.
	* tree-data-ref.c (loop_nest_has_data_refs): Remove pointless
	quadraticness.

From-SVN: r253203

gcc/ChangeLog

+2017-09-26  Richard Biener  <rguenther@suse.de>
+
+	* graphite-scop-detection.c (scop_detection::build_scop_depth): Rewrite,
+	fold in ...
+	(scop_detection::build_scop_breadth): ... this.  Removed.
+	(scop_detection::loop_is_valid_in_scop): Fold into single caller.
+	(scop_detection::harmful_stmt_in_bb): Likewise.
+	(scop_detection::graphite_can_represent_stmt): Likewise.
+	(scop_detection::loop_body_is_valid_scop): Likewise.  Remove recursion.
+	(scop_detection::can_represent_loop): Remove recursion, fold in ...
+	(scop_detection::can_represent_loop_1): ... this.  Removed.
+	(scop_detection::harmful_loop_in_region): Simplify after inlining
+	the above and remove more quadraticness.
+	(build_scops): Adjust.
+	* tree-data-ref.c (loop_nest_has_data_refs): Remove pointless
+	quadraticness.
+
 2017-09-26  Jakub Jelinek  <jakub@redhat.com>
 
 	PR target/82267

gcc/tree-data-ref.c

@@ -4944,17 +4944,6 @@ loop_nest_has_data_refs (loop_p loop)
 	}
     }
   free (bbs);
-
-  if (loop->inner)
-    {
-      loop = loop->inner;
-      while (loop)
-	{
-	  if (loop_nest_has_data_refs (loop))
-	    return true;
-	  loop = loop->next;
-	}
-    }
   return false;
 }