[PATCH] D18593: [PowerPC] Front end improvements for vec_splat

[Nemanja Ivanovic via llvm-commits]

nemanjai added a comment.

It appears @amehsan and I have come to an agreement here. Does anyone else have any objections to this approach @hfinkel, @echristo, @kbarton.
Sorry for the spam from the pings, I just want to make sure that we all agree on this approach for vector shuffles emitted from altivec.h as we might want do do something like this for other functions. This particular fix provided a significant improvement in Eigen and it is likely that there are other places where the compiler is tricked into not seeing through vperm's to see that they're vector shuffles.


Repository:
  rL LLVM

http://reviews.llvm.org/D18593