tree-vect-data-refs.c (vect_analyze_data_ref_dependence): Do not consider dependences between accesses that belong to the same group.

2016-06-15  Richard Biener  <rguenther@suse.de>

	* tree-vect-data-refs.c (vect_analyze_data_ref_dependence): Do
	not consider dependences between accesses that belong to the
	same group.
	(vect_analyze_data_ref_dependences): Do not analyze read-read
	or self-dependences.

	* gcc.dg/vect/bb-slp-pattern-2.c: Disable loop vectorization.

From-SVN: r237473