r245968 - in /trunk/gcc: ChangeLog testsuite/Ch...

[rguenth@gcc.gnu.org]

Author: rguenth
Date: Wed Mar  8 08:50:01 2017
New Revision: 245968

URL: https://gcc.gnu.org/viewcvs?rev=245968&root=gcc&view=rev
Log:
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.

Added:
    trunk/gcc/testsuite/gcc.dg/vect/pr79920.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-vect-slp.c