[PATCH] [X86] Skip concat_vectors when lowering vector broadcast

Nadav Rotem nrotem at apple.com
Wed Dec 11 13:23:52 PST 2013

> Yes, that was my alternative (handle it in DAGCombiner::visitCONCAT_
> VECTORS).  My fear was that the general combine could get quite
> complex and as I'm new to LLVM I'd get stuck.  Would it be acceptable
> to add a simple combine that just handled the case above in the first
> instance?

Sure, lets start by handling the simple case first. :)   

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