neon.md (V_ext): New mode attribute.

neon.md (V_ext): New mode attribute.

    gcc/
    * config/arm/neon.md (V_ext): New mode attribute.
    (neon_vget_lane<mode>): Replace with define_expand.
    (neon_vget_lane<mode>_sext_internal)
    (neon_vget_lane<mode>_zext_internal): New define_insns for double
    and quad precision vectors.
    (neon_vget_lanedi): Add bounds check. Remove dead comment.
    * config/arm/neon.ml (get_lane): Make 32-bit get-lane intrinsics
    have typeless 32-bit result.

    gcc/testsuite/
    * gcc.target/arm/neon/*.c: Regenerate.

From-SVN: r127061