Random note since Godbolt was mentioned: It's also fun to hop on play.rust-lang.org and see what different IRs look like via the "..." next to "RUN." Just look

Random note since Godbolt was mentioned: It's also fun to hop on play.rust-lang.org and see what different IRs look like via the "..." next to "RUN." Just look at how simple the HIR is pretty simple for "Hello world" - then check out the MIR ;)