[ARM] arm memcpy of aligned data

[ARM] arm memcpy of aligned data

2015-08-17  Mike Stump  <mikestump@comcast.net>

	* config/arm/arm.c (arm_block_move_unaligned_straight):
	Emit normal move instead of unaligned load when source or destination
	are appropriately aligned.

2015-08-17 Mike Stump  <mikestump@comcast.net>
           Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

	* gcc.target/arm/memcpy-aligned-1.c: New test.

Co-Authored-By: Kyrylo Tkachov <kyrylo.tkachov@arm.com>
From-SVN: r226935