During December 2024, Tianle Liu contributed to the espressif/llvm-project repository by developing a targeted InstCombine optimization in C++. He focused on widening the select instruction’s width after a comparison, which enabled the generation of Max and Min intrinsics and improved SIMD code generation. This work addressed type mismatches in select operations, enhancing the compiler’s ability to optimize vectorized code paths. Leveraging skills in LLVM IR and instruction selection, Tianle delivered a single, well-scoped feature that deepened intrinsic support in the back-end. The contribution demonstrated a disciplined approach to compiler optimization, with a clear focus on performance and code generation quality.