* config/rs6000/rs6000.c (altivec_in_gprs_p): Rename to ...
(gpr_or_gpr_p): Change to bool.
(rs6000_split_altivec_in_gprs): Rename to ...
(rs6000_split_multireg_move): Add support for update addressing.
* config/rs6000/rs6000-protos.h: Same.
* config/rs6000/altivec.md: Same.
* config/rs6000/rs6000.md (movdi_internal32): Use new splitter for
multiple GPRs.
(movti): Remove TARGET_STRING || TARGET_POWERPC64 final condition.
(movti_power): Use new splitter for multiple GPRs.
(movti_string): Same.
(movti_ppc64): Same.