Reviewers for DAG changes

Hi all,

I have a patch which implements a new intrinsic
( and wanted to see if there would be
anyone willing to review it. In particular, someone who is familiar
with the DAG.

This patch implements a signed saturation intrinsic, which takes a
signed integer and saturates it to a specified number of bits. This is
a part of a previous thread which discusses adding intrinsics for
fixed point types:

Original thread:

Specific intrinsics:

The intrinsic gets expanded in the DAG and we would like to get
opinions/reviews from someone who has worked on the DAG before. Any
other comments and feedback are also welcome.