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

[Ulrich Weigand via Phabricator via llvm-commits]

uweigand added a comment.

In https://reviews.llvm.org/D50913#1204810, @cameron.mcinally wrote:

> I do see that you wrote -0-x. Is there something special about the -0?


I understand this is to map -0 to +0 and vice versa.

In https://reviews.llvm.org/D50913#1204826, @cameron.mcinally wrote:

> User writes 0-x:   Frontend maps to constrained FSUB
>  User writes -x:     Frontend maps to FSUB


Yes, exactly.


Repository:
  rL LLVM

https://reviews.llvm.org/D50913