Compiling Rust with GCC: an update

Posted Sep 13, 2022 8:30 UTC (Tue) by farnz (subscriber, #17727)
In reply to: Compiling Rust with GCC: an update by himi
Parent article: Compiling Rust with GCC: an update

Assuming mrustc is bug-free against its own spec, the rule is that it'll compile all code that rustc does with the same behaviour in the final compiled binary, but it will also compile programs that rustc rejects as invalid. For this comparison purpose, that's good enough - you can't trust an mrustc-built compiler if you don't also have a rustc-built compiler from the same source.