2013-04-04  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/56826
	* tree-vect-slp.c (vect_build_slp_tree): Compute ncopies
	more accurately.

	* gcc.dg/vect/pr56826.c: New testcase.
	* gcc.dg/vect/O3-pr36098.c: Adjust.

From-SVN: r197486