[PATCH] D120508: introducing profi flags

Wenlei He via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Sat Mar 5 12:18:28 PST 2022


wenlei added inline comments.


================
Comment at: llvm/lib/Transforms/Utils/SampleProfileInference.cpp:744-746
+        std::max(MinCostMaxFlow::MinBaseDistance,
+                 std::min(Func.Blocks[Func.Entry].Flow,
+                          MinCostMaxFlow::AuxCostUnlikely / (NumBlocks() + 1)));
----------------
Could you explain this a bit more, how does this minimizes total multiplicative Flow increase for the remaining edges?


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D120508/new/

https://reviews.llvm.org/D120508



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