[PATCH] fix for PR20354 - Miscompile of fabs due to vectorization

[Sanjay Patel]

Hi Renato -

Certainly, I will put the ARM code change into the forthcoming patch for FNEG and cc you. Ok to do that in the new patch rather than putting anything more in this abandoned patch?

I have the FABS optimization patch proposal ready right now, so I will add you as a reviewer on that too. I hope the extra comments that I've included there will make it more obvious how the code is expected to change.

http://reviews.llvm.org/D4633