re PR target/64844 (Vectorization inhibited in gcc5 when loop starts with elem[1...

re PR target/64844 (Vectorization inhibited in gcc5 when loop starts with elem[1], aarch64 perf regression from 4.9.1)

2015-01-29  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/64844
	* tree-vect-loop.c (vect_estimate_min_profitable_iters): Always
	dump cost model analysis.
	* tree-vect-data-refs.c (vect_enhance_data_refs_alignment):
	Do not register adjusted load/store costs here.

	* gcc.dg/vect/pr64844.c: New testcase.

From-SVN: r220244