[PATCH] Teach the DAGCombiner how to fold a OR of two shufflevector into a single shufflevector node

Tim Northover t.p.northover at gmail.com
Wed Mar 5 13:37:22 PST 2014

> It is okay to generate new shuffles from a collection of insert/extracts
> because the new shuffle instructions can’t be worse then a collection
> of inserts and extracts.

Thanks Nadav; it sounds like I should remove the TODO and comment on
the scope of that function then as part of whatever I do.


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