Tianyun Yu contributed to the KhronosGroup/SPIRV-Tools repository by extending its optimization capabilities to support the SPV_NV_shader_invocation_reorder extension. Working primarily in C++ and leveraging expertise in compiler optimization and SPIR-V, Tianyun updated the allowlist across multiple optimization passes, enabling broader use of this extension during SPIR-V optimization workflows. This integration aligned SPIRV-Tools with evolving SPIR-V ecosystem features, reducing the need for manual workarounds in shader optimization pipelines. Although no major bugs were addressed during this period, the work demonstrated careful attention to stability and maintainability, with thorough documentation and preparation for downstream integration into shader toolchains.