I'm trying to figure out how to write branchless code since I don't use a compiler. I'm aware of techniques like using cmov, but I'm curious if that's the only instruction set available to achieve this or if there are other methods I can use to remove branches effectively. Any tips or resources would be really helpful!
2 Answers
Since you're focusing on x86-64, you might want to explore a few more options in addition to cmov. Checking out other conditional moves and integer arithmetic might provide more alternatives. Just be mindful of the trade-offs in complexity!
Before diving in, it's essential to know what chipset you're working with. Each architecture might have its specialized instructions. Also, I'm a bit puzzled why you aren't using a compiler—it's usually super helpful for optimizing code.
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