* cse.c (cse_process_notes): Copy the propagated value.
	* local-alloc.c (update_equiv_regs): Copy the memory RTX to be used
	in REG_EQUIV notes.
	* gcse.c (try_replace_reg): Copy the replacement.
	* i386.c (emit_i387_cw_initialization): Copy stored_mode
	(assign_386_stack_local): Always return copied memory expression
	* function.c (instantiate_virtual_regs_in_insn): Copy the operand
	duplicates.

From-SVN: r118665