2007-04-22  Uros Bizjak  <ubizjak@gmail.com>

        PR tree-optimization/24659
        * optabs.h (enum optab_index) [OTI_vec_unpacks_hi,
        OTI_vec_unpacks_lo]: Update comment to mention floating point operands.
        (vec_pack_trunc_optab): Rename from vec_pack_mod_optab.
        * genopinit.c (optabs): Rename vec_pack_mod_optab
        to vec_pack_trunc_optab.
        * tree-vect-transform.c (vectorizable_type_demotion): Do not fail
        early for scalar floating point operands for NOP_EXPR.
        (vectorizable_type_promotion): Ditto.
        * optabs.c (optab_for_tree_code) [VEC_PACK_TRUNC_EXPR]: Return
        vec_pack_trunc_optab.
        (expand_binop): Rename vec_float_trunc_optab to vec_pack_mod_optab.

        * tree.def (VEC_PACK_TRUNC_EXPR): Rename from VEC_PACK_MOD_EXPR.
        * tree-pretty-print.c (dump_generic_node) [VEC_PACK_TRUNC_EXPR]:
        Rename from VEC_PACK_MOD_EXPR.
        (op_prio) [VEC_PACK_TRUNC_EXPR]: Ditto.
        * expr.c (expand_expr_real_1): Ditto.
        * tree-inline.c (estimate_num_insns_1): Ditto.
        * tree-vect-generic.c (expand_vector_operations_1): Ditto.

        * config/i386/sse.md (vec_unpacks_hi_v4sf): New expander.
        (vec_unpacks_lo_v4sf): Ditto.
        (vec_pack_trunc_v2df): Ditto.
        (vec_pack_trunc_v8hi): Rename from vec_pack_mod_v8hi.
        (vec_pack_trunc_v4si): Rename from vec_pack_mod_v4si.
        (vec_pack_trunc_v2di): Rename from vec_pack_mod_v2di.
    
        * config/rs6000/altivec.md (vec_pack_trunc_v8hi): Rename from
        vec_pack_mod_v8hi.
        (vec_pack_trunc_v4si): Rename from vec_pack_mod_v4si.

        * doc/c-tree.texi (Expression trees) [VEC_PACK_TRUNC_EXPR]:
        Rename from VEC_PACK_MOD_EXPR.  This expression also represent
        packing of floating point operands.
        [VEC_UNPACK_HI_EXPR, VEC_UNPACK_LO_EXPR]: These expression also
        represent unpacking of floating point operands.
        * doc/md.texi (Standard Names) [vec_pack_trunc]: Update documentation.
        [vec_unpacks_hi]: Ditto.
        [vec_unpacks_lo]: Ditto.

testsuite/ChangeLog:

2007-04-22  Uros Bizjak  <ubizjak@gmail.com>

    PR tree-optimization/24659
    * gcc.dg/vect/vect-float-extend-1.c: New test.
    * gcc.dg/vect/vect-float-truncate-1.c: New test.

From-SVN: r124045