this post was submitted on 10 Jul 2023
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Programming

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How often does branchless programming actually matter? (self.programming)
submitted 1 year ago by firelizzard to c/programming
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I've started noticing articles and YouTube videos touting the benefits of branchless programming, making it sound like this is a hot new technique (or maybe a hot old technique) that everyone should be using. But it seems like it's only really applicable to data processing applications (as opposed to general programming) and there are very few times in my career where I've needed to use, much less optimize, data processing code. And when I do, I use someone else's library.

How often does branchless programming actually matter in the day to day life of an average developer?

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[–] [email protected] 1 points 1 year ago

Yes GPUs are bad at branching. But my ray tracer that is made of 90% branches still runs faster on the GPU than the CPU.

In general you are still correct.