[llvm-branch-commits] [llvm] DAG: Lower is.fpclass fcSubnormal|fcZero to fabs(x) < smallest_normal (PR #100390)

[Jay Foad via llvm-branch-commits]

https://github.com/jayfoad approved this pull request.

Makes sense to me.

For the ordered case I think this would only be profitable if fabs is free _and_ you don't have integer "test"-style instructions.

https://github.com/llvm/llvm-project/pull/100390