[llvm-branch-commits] [flang] [mlir] [MLIR] Add new complex.powi op (PR #158722)

[Akash Banerjee via llvm-branch-commits]

TIFitis wrote:

> The `powi` part looks good to me. Are you planning to merge it, and then rebase the other PR for the Flang changes for the final review?

I plan on landing both PRs at once. This PR depends on #158642, which should land first.
All the work should have been in a single PR but I split it up to make it easier to review.

https://github.com/llvm/llvm-project/pull/158722