[llvm] `__builtin.canonicalize` in common code (PR #142105)

[Pawan Nirpal via llvm-commits]

pawan-nirpal-031 wrote:

Hi @dominik-steenken absolutely, Please go ahead with this, I have been wanting to get back and finish on the commitments as following PRs, this is much welcome. I will make some time to support canonicalization of denormals ( I have a PR just haven't been able to attend to it ) Thanks for your PR.

https://github.com/llvm/llvm-project/pull/142105