For people who enjoy these blogs, you would definitely like the Julia REPL as well. I used to play with this a lot to discover compiler things.

For example:

    $ julia
    julia> function f(n)
             total = 0
             for x in 1:n
               total += x
             end
             return total
           end
    julia> @code_native f(10)
        ...
        sub    x9, x0, #2
        mul    x10, x8, x9
        umulh    x8, x8, x9
        extr    x8, x8, x10, #1
        add    x8, x8, x0, lsl #1
        sub    x0, x8, #1
        ret
        ...

it shows this with nice colors right in the REPL.

In the example above, you see that LLVM figured out the arithmetic series and replaced the loop with a simple multiplication.