Ah, that makes so much more sense. So it does have a 2nd level BTB, it's just th... | Hacker News

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phire on Jan 28, 2025 | parent | context | favorite | on: SiFive's P550 Microarchitecture

Ah, that makes so much more sense.

So it does have a 2nd level BTB, it's just that it's labeled as IJTP and is potentially only used by indirect branches.

clamchowder on Jan 28, 2025 [–]

No, that's not a second level BTB in that regular direct branches don't seem to use it. It's only for predicting indirect branches.

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