During March 2025, Daniel Suo developed control-flow pruning optimizations for the jax-ml/jax and ROCm/jax repositories, focusing on the lax.switch and _cond primitives. He refactored these components in Python to identify and remove unnecessary passthrough inputs and outputs, streamlining control-flow paths and reducing compile-time overhead. Daniel introduced comprehensive gradient tests to verify correctness when forwarding information through pruned branches, ensuring both forward and backward computations remained accurate. His work leveraged skills in compiler optimization, functional programming, and numerical computation, resulting in cleaner, more efficient codebases and improved maintainability for JAX-based numerical computing workflows across both repositories.