Worked on extending SPIR-V optimization capabilities within the KhronosGroup/SPIRV-Tools repository by enabling support for the SPV_NV_shader_invocation_reorder extension. This involved updating the allowlist across multiple optimization passes, allowing the extension to be utilized during SPIR-V optimization and aligning the toolset with evolving SPIR-V standards. The integration was carefully managed to maintain stability, with thorough documentation and preparation for downstream adoption to streamline shader optimization workflows. The work was implemented in C++ and leveraged expertise in compiler optimization and SPIR-V. No major bugs were addressed during this period, with the focus remaining on feature development and integration quality.