Correlated (two-level) branch predictor

Tag: correlated-predictor

Aliases: two-level predictor, Yeh-Patt predictor

A direction predictor (Yeh & Patt, 1991) that maintains a separate prediction per (PC, recent-history) pair, exploiting the observation that branch outcomes correlate with recent control-flow history. Formalised as the {G,P}A{g,p,s} taxonomy.

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