re PR testsuite/31589 (gcc.dg/vect failures due to missing target specifiers)

re PR testsuite/31589 (gcc.dg/vect failures due to missing target specifiers)

        PR testsuite/31589
        * gcc.dg/vect/vect-iv-9.c: Added vect_int_mult target keyword to
        dg-final test.
        * gcc.dg/vect/vect-reduc-dot-u16b.c: Added vect_pack_trunc target
        keyword to dg-final test.
        * gcc.dg/vect/vect-iv-4.c: Likewise.
        * gcc.dg/vect/vect-widen-mult-u16.c: Likewise.
        * gcc.dg/vect/pr30771.c: Added vect_unapck target keyword to dg-final
        test.
        * gcc.dg/vect/vect-reduc-dot-u16a.c: Change variable type to avoid a
        cast.
        * gcc.dg/vect/no-section-anchors-vect-69.c: xfail on is64.
        * lib/target-supports.exp
        (check_effective_target_vect_widen_sum_hi_to_si): Added ia64.
        (check_effective_target_vect_widen_sum_qi_to_hi): Added ia64.

From-SVN: r124315