[PATCH] D110117: [SamplePGO] Add switch to honor zero count on block level as accurate
Wenlei He via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Mon Sep 20 17:46:47 PDT 2021
wenlei added a comment.
This turns out to improve HHVM (https://github.com/facebook/hhvm) RPS by 0.1%, while reducing .text size by 4%, using AutoFDO. I hope to get it in first so we can do more evaluation. Eventually either add a new driver switch just like fprofile-sample-accurate, or merge it into fprofile-sample-accurate if it turns out to be helpful in general.
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rG LLVM Github Monorepo
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https://reviews.llvm.org/D110117/new/
https://reviews.llvm.org/D110117
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