Worked on the espressif/qemu repository to address build stability issues related to the AMD IOMMU driver when compiling with Clang and KVM disabled. Focused on restructuring conditional logic in the C codebase to ensure that kvm_enable_x2apic was optimized away in non-KVM builds, which resolved a persistent linking error. This targeted fix improved cross-compiler compatibility and enhanced the reliability of continuous integration pipelines, allowing builds to pass consistently across different configurations. Demonstrated expertise in compiler optimization, driver development, and kernel development, contributing maintainable solutions that accelerated release cycles and increased developer confidence in the build process.