[PATCH 1/2] Enable auto-vectorization for PowerPC 750CL paired-single instructions

[David Edelsohn]

        * config/rs6000/paired.md (sminv2sf3, smaxv2sf3, reduc_smax_v2sf,
        reduc_smin_v2sf vec_interleave_highv2sf, vec_interleave_lowv2sf,
        vec_extract_evenv2sf, vec_extract_oddv2sf, reduc_splus_v2sf,
        movmisalignv2sf, vcondv2sf): New.
        (UNSPEC_INTERHI_V2SF, UNSPEC_INTERLO_V2SF, UNSPEC_EXTEVEN_V2SF,
        UNSPEC_EXTODD_V2SF): Define new constants.
        * config/rs6000/rs6000-protos.h (paired_expand_vector_move,
        paired_emit_vector_cond_expr): New.
        * config/rs6000/rs6000-c.c (__PAIRED__): Add new builtin_define.
        * config/rs6000/rs6000.c (paired_expand_vector_move,
        paired_emit_vector_cond_expr, paired_emit_vector_compare):
        New functions.
        * config/rs6000/750cl.h (ASM_CPU_SPEC): Pass down -m750cl option.

Okay.

David