Since g++ already optimizes for loop vectorization with the O3 flag: How to vectorize my loop with g++?
Is it useful at all I try to vectorize my C++ code?
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1no, write clean and simple code and do not try to outsmart your compiler :) – skeller Jun 01 '19 at 22:08
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I think you are asking if it is useful for you to put in extra work to *try* to optimize your code into a less-readable mess, instead of letting the compiler reliably perform the same -- or sometimes better -- optimizations for you. Is that the gist of your question? – JaMiT Jun 02 '19 at 00:53
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@JaMiT Yes, I'm wondering if it will always optimize it the same or better – JobHunter69 Jun 02 '19 at 17:00