Worked on the corretto/corretto-8 repository to address a critical issue in the C1 compiler, focusing on preventing virtual register exhaustion and assertion failures during compilation. Applied expertise in C++ development, compiler design, and performance optimization to deliver a robustness fix that ensures reliable compilation under high virtual register pressure. The solution involved careful management of virtual registers, reducing intermittent build failures and improving stability for long-running compilation tasks. Collaborated with multiple reviewers to ensure code quality and backport readiness. This work enhanced the predictability and reliability of production workloads, supporting smoother development and deployment processes for the compiler.