Kris Kennaway wrote:
P.S. -funroll-loops and -ffast-math are commonly used by people who don't understand what they mean but like the thrill it gives them to compile their application with secret optimizations (e.g. the word "fast" makes them feel excited). However, the former is often not actually an optimization (which is why it's not on by default), and the latter can cause incorrect computations (but I think it's completely irrelevant in the kernel which does not do FP math).
Just out of curiosity, what would people who know what they are doing use them for? -funroll-loops sounds like an amusement park :P
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