* tree-vectorizer.h (vect_recog_func_ptr): Make last argument to
        be a pointer.
        * tree-vect-patterns.c (vect_recog_widen_sum_pattern,
        vect_recog_widen_mult_pattern, vect_recog_dot_prod_pattern,
        vect_recog_pow_pattern): Likewise.
        (vect_pattern_recog_1): Remove declaration.
        (widened_name_p): Remove declaration.  Add new argument to
        specify whether to check that both types are either signed or
        unsigned.
        (vect_recog_widen_mult_pattern): Update documentation.  Handle
        unsigned patterns and multiplication by constants.
        (vect_pattern_recog_1): Update vect_recog_func references.  Use
        statement information from the statement returned from pattern
        detection functions.
        (vect_pattern_recog): Update vect_recog_func reference.
        * tree-vect-stmts.c (vectorizable_type_promotion): For widening
        multiplication by a constant use the type of the other operand.

From-SVN: r174735