re PR tree-optimization/68559 (Excessive peeling for gaps)

re PR tree-optimization/68559 (Excessive peeling for gaps)

2015-11-27  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/68559
	* tree-vect-data-refs.c (vect_analyze_group_access_1): Move
	peeling for gap checks ...
	* tree-vect-stmts.c (vectorizable_load): ... here and relax
	for SLP.
	* tree-vect-loop.c (vect_analyze_loop_2): Re-set
	LOOP_VINFO_PEELING_FOR_GAPS before re-trying without SLP.

	* gcc.dg/vect/slp-perm-4.c: Adjust again.
	* gcc.dg/vect/pr45752.c: Likewise.

From-SVN: r231015