[PATCH] Allow speculating llvm.sqrt, fma and fmuladd

[hfinkel at anl.gov]

  LGTM.

  As you point out, we should fix up the definitions of the other intrinsics w.r.t. errno, but that's a separate issue. (I had a patch to do this: http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20131111/194571.html -- but it seems that unfortunately I forgot about it -- perhaps you can comment on this at some point).

http://llvm-reviews.chandlerc.com/D2428