How if mfence is separated to afence and bfence, afence is for load & store reordering and bfence is for store & load reordering. What will happen?
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Charles
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I'm assuming the context is x86. In addition to load-store and store-load reordering, mfence also prevents store-store reordering and load-load reordering. Though normal stores on x86 cannot be reordered, "non-temporal" stores can be reordered.
Jeff Hammond
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Arch D. Robison
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