Viktoria Maksimova developed SPIR-V backend support for the cl_intel_subgroup_local_block_io extension in the espressif/llvm-project repository, enabling block read and write operations on __local memory for enhanced Intel subgroup compatibility. She updated SPIR-V builtins to recognize the new extension and implemented automated tests to ensure accurate translation of these operations to SPIR-V, improving verification coverage and reducing integration risk. Her work involved low-level programming and compiler development using C++ and LLVM IR, addressing a specific gap in OpenCL support. The depth of her contribution strengthened the backend’s alignment with Intel subgroup features and advanced the project’s technical roadmap.