This is patch #2 of my series for improving the PowerPC internal memory
support.  It assumes patch #1 has been applied.

This patch moves the rs6000_move_128bit function from rs6000.c to a new file,
rs6000-output.c.

The third patch will create a rs6000_move_64bit function and change both 32-bit
and 64-bit movdi to call it, instead of having all of the instructions be
literals.  I will also likely add improvements to setting the reg_addr address
masks for offsetable addresses.

The fourth patch will like move movdd and movdf to call rs6000_move_64bit as
well.

I tested this on a little endian power8 system and there were no regressions.

2018-03-14  Michael Meissner  <meissner@linux.vnet.ibm.com>

	* config.gcc (powerpc*-*-*): Add rs6000-output.o to extra_objs.
	* config/rs6000/t-rs6000 (rs6000-output.o): Add build rule.
	* config/rs6000/rs6000.c (rs6000_output_move_128bit): Move to
	rs6000-output.c.
	(rs6000_move_128bit_ok_p): Likewise.
	(rs6000_split_128bit_ok_p): Likewise.
	* config/rs6000/rs6000-output.c (rs6000_output_move_128bit):
	Likewise.
	to rs6000-output.c.
	(rs6000_move_128bit_ok_p): Likewise.
	(rs6000_split_128bit_ok_p): Likewise.

-- 
Michael Meissner, IBM
IBM, M/S 2506R, 550 King Street, Littleton, MA 01460-6245, USA
email: meissner@linux.vnet.ibm.com, phone: +1 (978) 899-4797