[PATCH] D140063: [AutoFDO] Use getHeadSamplesEstimate instead of getTotalSamples to compute profile callsite staleness

[Wenlei He via Phabricator via llvm-commits]

wenlei added a comment.

I thought the idea is to compute the % of samples being dropped due to mismatch? in this case, all samples from callsite will be dropped, so I actually don't see a problem with using getTotalSamples. Yes you can argue that they can be merged with base profile, but then that argument applies to getHeadSamplesEstimate too?


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https://reviews.llvm.org/D140063