Worked on the JuliaGPU/pocl repository to enhance both build system reliability and kernel compilation stability. Developed a unified approach to X86 architecture handling in CMake, consolidating variable usage across x86_64 and i386 and accurately distinguishing X32 from I386, which improved cross-architecture build consistency and maintainability. Additionally, implemented a regression test in C++ to reproduce and guard against a specific LLVM 1608 ICE/segfault during OpenCL kernel compilation, ensuring future changes do not reintroduce this critical error. The work focused on CMake, C++, and OpenCL, emphasizing robust regression testing and maintainable build system configuration for safer, more reliable releases.