* target.h (enum vect_cost_for_stmt): Add vec_gather_load and
	vec_scatter_store
	* tree-vect-stmts.c (record_stmt_cost): Make difference between normal
	and scatter/gather ops.

	* aarch64/aarch64.c (aarch64_builtin_vectorization_cost): Add
	vec_gather_load and vec_scatter_store.
	* arm/arm.c (arm_builtin_vectorization_cost): Likewise.
	* powerpcspe/powerpcspe.c (rs6000_builtin_vectorization_cost): Likewise.
	* rs6000/rs6000.c (rs6000_builtin_vectorization_cost): Likewise.
	* s390/s390.c (s390_builtin_vectorization_cost): Likewise.
	* spu/spu.c (spu_builtin_vectorization_cost): Likewise.

From-SVN: r253823