[PATCH] D60295: [SelectionDAG] Change the jump table size unit from entry to target

[Evandro Menezes via Phabricator via llvm-commits]

evandro added a comment.

Yes, `default`, whether explicit or implicit, counts too,  for the resources used inside the target only care about different addresses.  In you example, a typical branch predictor will see up to 3 target addresses.  Of course, branch predictors are trained by branches that are actually taken, so only target addresses that are executed count.  Which opens the window for future work involving FDO or just the static heuristics.


Repository:
  rL LLVM

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  https://reviews.llvm.org/D60295/new/

https://reviews.llvm.org/D60295