DEC was working on it, allegedly for EV8: <a href="https:&#x2F;&#x2F;www.cis.upenn.edu&#x2F;~cis501&#x2F;papers&#x2F;store-sets.pdf" rel="nofollow">https:&#x2F;&#x2F;www.cis.upenn.edu&#x2F;~cis501&#x2F;papers&#x2F;store-sets.pdf</a>. They cite to the inventor of the patent in question: &quot;Independently, Moshovos et al. published a comprehensive description of memory dependence prediction. This is the first published work identifying that memory
dependencies are problematic for out-of-order machines.&quot;