Editing Speculative execution (section)

==={{Anchor|PREDICTIVE}}Predictive execution===
{{See also|Pipeline (computing)}}
{{Main| Branch predictor}}

Predictive execution is a form of speculative execution where some outcome is predicted and execution proceeds along the predicted path until the actual result is known. If the prediction is true, the predicted execution is allowed to commit; however, if there is a misprediction, execution has to be unrolled and re-executed. Common forms of this include [[branch predictor]]s and [[memory dependence prediction]]. A generalized form is sometimes referred to as value prediction.<ref>{{cite book|last1=Mark D.|first1=Hill|author-link2=Norman Jouppi|last2=Norman P.|first2=Jouppi|last3=Gourindar S.|first3=Sohi|title=Readings in Computer Architecture|date=2000|publisher=Morgan Kaufman|url=https://books.google.com/books?id=I7o8teBhz5wC&q=processor+predictive+execution&pg=PA178|access-date=5 January 2018|isbn=9781558605398}}</ref>