two-level adaptive branch prediction
"Two-level adaptive branch prediction" is a hardware technique used in processors to predict the outcome of conditional branches in a program's control flow. It incorporates a two-level structure, consisting of a global history table and a pattern history table, to dynamically track previous branch behaviors and make accurate predictions about future branch outcomes. This approach aims to enhance the efficiency and performance of the processor by reducing branch mispredictions and minimizing the time wasted on incorrect speculative execution.
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