[AArch64] Implement movmem for the benefit of inline memcpy

gcc/

	* config/aarch64/aarch64-protos.h (aarch64_expand_movmem): New.
	* config/aarch64/aarch64.c (aarch64_move_pointer): New.
	(aarch64_progress_pointer): Likewise.
	(aarch64_copy_one_part_and_move_pointers): Likewise.
	(aarch64_expand_movmen): Likewise.
	* config/aarch64/aarch64.h (MOVE_RATIO): Set low.
	* config/aarch64/aarch64.md (movmem<mode>): New.

gcc/testsuite/

	* gcc.dg/tree-ssa/pr42585.c: Skip for AArch64.
	* gcc.dg/tree-ssa/sra-12.c: Likewise.



git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@211314 138bc75d-0d04-0410-961f-82ee72b054a4
2014-06-06  Martin Jambor  <mjambor@suse.cz>

	* ipa-prop.c (get_place_in_agg_contents_list): New function.
	(build_agg_jump_func_from_list): Likewise.
	(determine_known_aggregate_parts): Renamed to
	determine_locally_known_aggregate_parts.  Moved some functionality
	to the two functions above, removed bound checks.



git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@211315 138bc75d-0d04-0410-961f-82ee72b054a4