[PATCH] [x86] Improve build_vector v8i16 codegen

[Bruno Cardoso Lopes]

Thanks for the detailed measurements Quentin.

I've received a report about a performance degradation regarding this code against hand-written pinsrw assembly and trusted the source =(
I'll try it out myself and get back if it really shows up some performance improvements.


http://reviews.llvm.org/D7177

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