* config/rs6000/spe.md (SPE_ACC_REGNO): Delete definition.
        (SPEFSCR_REGNO): Delete definition.
        * config/rs6000/rs6000.c: LINK_REGISTER_REGNUM -> LR_REGNO.
        COUNT_REGISTER_REGNUM -> CTR_REGNO.
        * config/rs6000/rs6000.h: Do not define *_REGNO.
        LINK_REGISTER_REGNUM -> LR_REGNO.
        COUNT_REGISTER_REGNUM -> CTR_REGNO.
        * config/rs6000/predicates.md: LINK_REGISTER_REGNUM -> LR_REGNO.
        COUNT_REGISTER_REGNUM -> CTR_REGNO.
        * config/rs6000/linux-unwind.h: Define R_LR, R_CR2, R_VR0,
        R_VRSAVE, R_VSCR. Use them.
        * config/rs6000/darwin-fallback.c: Define R_LR, R_CTR, R_CR2,
        R_XER, R_VR0, R_VRSAVE, R_VSCR, R_SPEFSCR.  Use them.
        * config/rs6000/rs6000.md: Define REGNO constants.  Use them.
        * config/rs6000/aix.h: Define R_LR.  Use it.

From-SVN: r126631