[llvm] [ConstantTime][LLVM] Add llvm.ct.select intrinsic with generic SelectionDAG lowering (PR #166702)

[Akshay K via llvm-commits]

kumarak wrote:

> Please fix the merge failures

@RKSimon, we have an ongoing PR to address some of the comments and improve fallback implementations to avoid breaking the constant-time intent during DAG merging (https://github.com/llvm/llvm-project/pull/180883). This PR will be ready for review after merging it into the branch. 



https://github.com/llvm/llvm-project/pull/166702