Compiler Explorer

Wow - we're on Hacker News again! Hello all, and thanks for the link and discussion! While we're here, we recently made some stats public: https://stats.compiler-explorer.com/ (spot the Hacker News spike!) General stuff: we're always looking for help; everything's open source on GH: https://github.com/compiler-explorer/ (the base project, our cloud setup, all our build scripts, etc). The most valuable way to help us is with issues and PRs, or hang out on our Discord (https://discord.gg/zNNgyRKh). Then spread the…

Matt Godbolt is a great speaker as well. I loved this talk that included a bit about the architecture behind his Compiler Explorer. The rest of his talk is super cool as well. E.g. closed form solutions from O(n) code? Compilers are awesome. https://m.youtube.com/watch?v=bSkpMdDe4g4

It's not very discoverable but there are sister sites for Rust, Go and D: https://rust.godbolt.org/ https://go.godbolt.org/ https://d.godbolt.org/

GCC Explorer is great and I use it on a semi-regular basis. I often use it to show what kinds of optimizations a modern compiler will do. Just yesterday I was using it to show someone how a piece of code like: int launched = 0; // ... start_thread(...); while (!launched) {} could result in an endless loop since the compiler just rewrote it to 'if(!launched) { while(true){} }'. The person had the thread write to 'launched' and expected the…