The Performance Propeller: Google Proposes Upstreaming Its High-Octane Optimizer to LLVM Linux The Performance Propeller: Google Proposes Upstreaming Its High-Octane Optimizer to LLVM Do Son December 29, 2025 0 Google engineers have proposed integrating the Propeller tool into LLVMβs main codebase. Propeller is a profile-guided optimizer... Read More Read more about The Performance Propeller: Google Proposes Upstreaming Its High-Octane Optimizer to LLVM