* expr.c (move_block_from_reg): Remove "size" parm.  Localize vars.
	Move code handling pieces not larger than a word to..
	* function.c (assign_parms): ..here, but use change_address instead
	of adjust_address and operand_subword, and expand_binop instead of
	expand_shift.  Adjust calls to move_block_from_reg.
	* expr.h (move_block_from_reg): Update declaration.
	(copy_blkmode_from_reg): Formatting.
	* Makefile.in (function.o): Add $(OPTABS_H) to deps.
	* config/alpha/alpha.c (alpha_setup_incoming_varargs): Adjust
	move_block_from_reg calls.
	* config/arc/arc.c (arc_setup_incoming_varargs): Likewise.
	* config/i960/i960.c (i960_setup_incoming_varargs): Likewise.
	* config/m32r/m32r.c (m32r_setup_incoming_varargs): Likewise.
	* config/m88k/m88k.c (m88k_builtin_saveregsk): Likewise.
	* config/mips/mips.c (mips_setup_incoming_varargs): Likewise.
	* config/pa/pa.c (hppa_builtin_saveregs): Likewise.
	* config/romp/romp.h (SETUP_INCOMING_VARARGS): Likewise.
	* config/rs6000/rs6000.c (setup_incoming_varargs): Likewise.
	* config/sh/sh.c (sh_builtin_saveregs): Likewise.

From-SVN: r66623