AdamNiederer / AdamNiederer/faster
PMOVMSKB operation equivalent
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描述
It would be useful to me if there were an operation like `fn bytemask(v: T) -> usize` that set the bits of the usize to 1 where the packed vector's bytes are all 1, corresponding to the asm PMOVMSKB or VPMOVMSKB. I don't know how possible this would be for faster, but it would be nice.
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