altivec.md (altivec_mov<mode>, [...]): Change the RTL attribute "length" from "4" to "*" to allow the length attribute...

2019-07-03  Michael Meissner  <meissner@linux.ibm.com>

	* config/rs6000/altivec.md (altivec_mov<mode>, VM2 iterator):
	Change the RTL attribute "length" from "4" to "*" to allow the
	length attribute to be adjusted automatically for prefixed load,
	store, and add immediate instructions.
	* config/rs6000/rs6000.md (extendhi<mode>2, EXTHI iterator):
	Likewise.
	(extendsi<mode>2, EXTSI iterator): Likewise.
	(movsi_internal1): Likewise.
	(movsi_from_sf): Likewise.
	(movdi_from_sf_zero_ext): Likewise.
	(mov<mode>_internal): Likewise.
	(movcc_internal1, QHI iterator): Likewise.
	(mov<mode>_softfloat, FMOVE32 iterator): Likewise.
	(movsf_from_si): Likewise.
	(mov<mode>_hardfloat32, FMOVE64 iterator): Likewise.
	(mov<mode>_softfloat64, FMOVE64 iterator): Likewise.
	(mov<mode>, FMOVE128 iterator): Likewise.
	(movdi_internal64): Likewise.
	* config/rs6000/vsx.md (vsx_le_permute_<mode>, VSX_TI iterator):
	Likewise.
	(vsx_le_undo_permute_<mode>, VSX_TI iterator): Likewise.
	(vsx_mov<mode>_64bit, VSX_M iterator): Likewise.
	(vsx_mov<mode>_32bit, VSX_M iterator): Likewise.
	(vsx_splat_v4sf): Likewise.

From-SVN: r273013