* 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.

Co-Authored-By: Hartmut Penner <hpenner@de.ibm.com>

From-SVN: r71673