gcc/

gcc/
2014-12-04  Yvan Roux  <yvan.roux@linaro.org>

	Backport from trunk r216996, r216998, r216999, r217001, r217002, r217003,
	r217004, r217742.
	2014-11-18  James Greenhalgh  <james.greenhalgh@arm.com>

	PR target/63937
	* target.def (use_by_pieces_infrastructure_p): Take unsigned
	HOST_WIDE_INT as the size parameter.
	* targhooks.c (default_use_by_pieces_infrastructure_p): Likewise.
	* targhooks.h (default_use_by_pieces_infrastructure_p): Likewise.
	* config/arc/arc.c (arc_use_by_pieces_infrastructure_p)): Likewise.
	* config/mips/mips.c (mips_use_by_pieces_infrastructure_p)): Likewise.
	* config/s390/s390.c (s390_use_by_pieces_infrastructure_p)): Likewise.
	* config/sh/sh.c (sh_use_by_pieces_infrastructure_p)): Likewise.
	* config/aarch64/aarch64.c
	(aarch64_use_by_pieces_infrastructure_p)): Likewise.
	* doc/tm.texi: Regenerate.

	2014-11-01  James Greenhalgh  <james.greenhalgh@arm.com>

	* doc/tm.texi.in (MOVE_BY_PIECES_P): Remove.
	(CLEAR_BY_PIECES_P): Likewise.
	(SET_BY_PIECES_P): Likewise.
	(STORE_BY_PIECES_P): Likewise.
	* doc/tm.texi: Regenerate.
	* system.h: Poison MOVE_BY_PIECES_P, CLEAR_BY_PIECES_P,
	SET_BY_PIECES_P, STORE_BY_PIECES_P.
	* expr.c (MOVE_BY_PIECES_P): Remove.
	(CLEAR_BY_PIECES_P): Likewise.
	(SET_BY_PIECES_P): Likewise.
	(STORE_BY_PIECES_P): Likewise.
	(can_move_by_pieces): Rewrite in terms of
	targetm.use_by_pieces_infrastructure_p.
	(emit_block_move_hints): Likewise.
	(can_store_by_pieces): Likewise.
	(store_by_pieces): Likewise.
	(clear_storage_hints): Likewise.
	(emit_push_insn): Likewise.
	(expand_constructor): Likewise.

	2014-11-01  James Greenhalgh  <james.greenhalgh@arm.com>

	* config/aarch64/aarch64.c
	(aarch64_use_by_pieces_infrastructre_p): New.
	(TARGET_USE_BY_PIECES_INFRASTRUCTURE): Likewise.
	* config/aarch64/aarch64.h (STORE_BY_PIECES_P): Delete.

	2014-11-01  James Greenhalgh  <james.greenhalgh@arm.com>

	* config/mips/mips.h (MOVE_BY_PIECES_P): Remove.
	(STORE_BY_PIECES_P): Likewise.
	* config/mips/mips.c (TARGET_USE_BY_PIECES_INFRASTRUCTURE_P): New.
	(mips_move_by_pieces_p): Rename to...
	(mips_use_by_pieces_infrastructure_p): ...this, use new hook
	parameters, use the default hook implementation as a
	fall-back.

	2014-11-01  James Greenhalgh  <james.greenhalgh@arm.com>

	* config/sh/sh.c (TARGET_USE_BY_PIECES_INFRASTRUCTURE_P): New.
	(sh_use_by_pieces_infrastructure_p): Likewise.
	* config/sh/sh.h (MOVE_BY_PIECES_P): Remove.
	(STORE_BY_PIECES_P): Likewise.
	(SET_BY_PIECES_P): Likewise.

	2014-11-01  James Greenhalgh  <james.greenhalgh@arm.com>

	* config/arc/arc.c (TARGET_USE_BY_PIECES_INFRASTRUCTURE_P): New.
	(arc_use_by_pieces_infrastructure_p): Likewise.
	* confir/arc/arc.h (MOVE_BY_PIECES_P): Delete.
	(CAN_MOVE_BY_PIECES): Likewise.

	2014-11-01  James Greenhalgh  <james.greenhalgh@arm.com>

	* config/s390/s390.c (s390_use_by_pieces_infrastructure_p): New.
	(TARGET_USE_BY_PIECES_INFRASTRUCTURE_P): Likewise.
	* config/s390/s390.h (MOVE_BY_PIECES_P): Remove.
	(CLEAR_BY_PIECES): Likewise.
	(SET_BY_PIECES): Likewise.
	(STORE_BY_PIECES): Likewise.

	2014-11-01  James Greenhalgh  <james.greenhalgh@arm.com>

	* target.def (use_by_pieces_infrastructure_p): New.
	* doc/tm.texi.in (MOVE_BY_PIECES_P): Describe that this macro
	is deprecated.
	(STORE_BY_PIECES_P): Likewise.
	(CLEAR_BY_PIECES_P): Likewise.
	(SET_BY_PIECES_P): Likewise.
	(TARGET_MOVE_BY_PIECES_PROFITABLE_P): Add hook.
	* doc/tm.texi: Regenerate.
	* expr.c (MOVE_BY_PIECES_P): Rewrite in terms of
	TARGET_USE_BY_PIECES_INFRASTRUCTURE_P.
	(STORE_BY_PIECES_P): Likewise.
	(CLEAR_BY_PIECES_P): Likewise.
	(SET_BY_PIECES_P): Likewise.
	(STORE_MAX_PIECES): Move to...
	* defaults.h (STORE_MAX_PIECES): ...here.
	* targhooks.c (get_move_ratio): New.
	(default_use_by_pieces_infrastructure_p): Likewise.
	* targhooks.h (default_use_by_pieces_infrastructure_p): New.
	* target.h (by_pieces_operation): New.

gcc/testsuite/
2014-12-04  Yvan Roux  <yvan.roux@linaro.org>

	Backport from trunk r217742.
	2014-11-18  James Greenhalgh  <james.greenhalgh@arm.com>

	PR target/63937
	* gcc.dg/memset-2.c: New.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/linaro/gcc-4_9-branch@218390 138bc75d-0d04-0410-961f-82ee72b054a4