[PATCH] [PPC64LE] Remove unnecessary swaps from lane-insensitive vector computations

[Bill Schmidt]

OK, thanks!  This makes sense.

Frankly this gets pretty baroque when all we want is a way to flag an instruction with an attribute.  Providing an easy way to form sets of instructions would be a good project for somebody who wants to modify TableGen someday.


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  rL LLVM

http://reviews.llvm.org/D8565

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