re PR tree-optimization/71752 (ICE in compute_live_loop_exits, at tree-ssa-loop-manip.c:229 w/ -O1 -ftree-vectorize)

2015-08-17  Alan Hayward <alan.hayward@arm.com>

	PR tree-optimization/71752
	* tree-vect-loop.c (vectorizable_reduction): Keep SLP operand ordering.
	* tree-vect-slp.c (vect_get_slp_defs): Handle null operands.

	PR tree-optimization/71752
	* gcc.dg/vect/pr71752.c: New

From-SVN: r239542