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Document movnt needs sfence #1457

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Closed

Document movnt needs sfence #1457

wants to merge 1 commit into from

Commits on Aug 9, 2023

  1. Document movnt needs sfence 

    For every intrinsic that may generate any of the MOVNT family
of instructions, specify it must be followed by `_mm_sfence`.

Also, ask people to not think too hard about what actually
happens with write-combining memory buffers. They probably
don't want to know, and in terms of the Rust abstract machine,
we aren't actually entirely sure yet.
    @workingjubilee
    workingjubilee committed Aug 9, 2023
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