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"I'm probably not alone in thinking that sometimes the compiler writers are doing their hardest to make life hard for people writing low level code." -- David Laight at: https://lore.kernel.org/r/344b4cf41a474377b3d
2cbf6302de703@AcuMS.aculab.com
It's a fun thread, recommended for anyone who deals with compilers and trying to get them to do what you would think would be a "easy" thing to do and the hacks around them to get them to do that (hint adding "+ 0" to an expression tricks the compiler into doing what you meant it to do is usually a sign that something is wrong somewhere...)