[PATCH] D19426: [AArch64] Use the reciprocal estimation machinery

[Renato Golin via llvm-commits]

rengolin added a comment.

In http://reviews.llvm.org/D19426#413925, @jmolloy wrote:

> The important thing is how we decide whether to perform this optimisation or not. A hook function, as we normally use, has the ability to be extended to add more logic. A subtarget feature does not. I wouldn’t like to see optimization decisions being switched on or off by subtarget features.


+1


Repository:
  rL LLVM

http://reviews.llvm.org/D19426