Any @rustlang optimization experts know why the functions in this example don't optimize to the same thing?https://godbolt.org/z/Lzk6Sd
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I don’t understand the `dil` bit, or why the fold doesn’t optimize as well as the manual unroll
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I believe "dil" is the name for the lower 8 bits of the "di" register, which wasn't a thing in the old days, only the ax, bx, cx, dx registers could have 8 bit slices.
End of conversation
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