[PATCH] D43142: Experimental pass to convert all floating point operations to the equivalent constrained intrinsics

[Kevin P. Neal via Phabricator via llvm-commits]

kpn added a comment.

Oh, of course FNeg will need to be emitted by the front end. And couldn't we turn off constant folding in the IRBuilder when necessary?

Plus, we still have to deal with inlining being done llvm-side. We don't know in clang what llvm will inline. And we don't want an inlined function's instructions moved in between use of constrained intrinsics, for example.


https://reviews.llvm.org/D43142