[PATCH] D50913: [FPEnv] Don't need copysign/fabs/fneg constrained intrinsics

[Cameron McInally via Phabricator via llvm-commits]

cameron.mcinally added a comment.

> Did we decide that fast math flags can't be applied in the presence of constrained operations?

I haven't thought about this before today, but some of the flags we would want. E.g. reassoc/contract/afn.

In a pure trap-safe mode, contract/afn should be turned off. But, generally speaking, our users would prefer to see optimized code that misses some right-at-the-edge cases.


Repository:
  rL LLVM

https://reviews.llvm.org/D50913