The Fil-C Optimized Calling Convention | Hacker News

Hacker News spotlighted Fil-C, a project with an optimized calling convention and a safety-focused compiler design.

Discussion focused on how Fil-C enforces memory safety, including pointer metadata, fat pointers, and InvisiCaps.

The post also questioned how much of the project’s work is attributable to a single developer, Filip Pizlo.

Fil-C is notable as an attempt to make C safer and more capable without leaving the existing C ecosystem.