backport: [multiple changes]

backport: [multiple changes]

2018-06-21  Richard Biener  <rguenther@suse.de>

	Backport from mainline
	2017-09-06  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/82108
	* tree-vect-stmts.c (vectorizable_load): Fix pointer adjustment
	for gap in the non-permutation SLP case.

	* gcc.dg/vect/pr82108.c: New testcase.

	2017-06-18  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/81410
	* tree-vect-stmts.c (vectorizable_load): Properly adjust for
	the gap in the ! slp_perm SLP case after each group.

	* gcc.dg/vect/pr81410.c: New testcase.

	2017-03-08  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/79920
	* tree-vect-slp.c (vect_create_mask_and_perm): Remove and inline
	with ncopies == 1 to ...
	(vect_transform_slp_perm_load): ... here.  Properly compute
	all element loads by iterating VF times over the group.  Do
	not handle ncopies (computed in a broken way) in
	vect_create_mask_and_perm.

	* gcc.dg/vect/pr79920.c: New testcase.

From-SVN: r261842