2025-06-07 # Optimizations with Zig "Beware of the Turing tar-pit in which everything is possibile, but nothing of interest is easy." In this article I aim to explain the concept of low-level optimization, and why Zig is particularly well suited for it. As an example, consider the following JavaScript code: function maxArray(x, y) { for (let i = 0; i < 65536; i++) { x[i] = y[i] > x[i] ? If the compiler can't tell that your Zig function is always called with non-aliasing arguments, Rust functions will outperform the non-annotated Zig functions. If we take in well-annotated LLVM IR as the *only* metric of a language's optimization capability, then Zig does well.