Between LLVM's optimization passes, static analysis, and modern LLM-powered tools, couldn't we build systems that not only identify but automatically fix these

Between LLVM's optimization passes, static analysis, and modern LLM-powered tools, couldn't we build systems that not only identify but automatically fix these performance issues? GitHub Copilot already suggests code - why not have "Copilot Performance" that refactors inefficient patterns? I'm curious if anyone is working on "self-healing" systems where the optimization feedback loop is closed automatically rather than requiring human engineers to parse complex profiling data.