[PATCH] D158891: [CSSPGO] Retire FlattenProfileForMatching

[Hongtao Yu via Phabricator via llvm-commits]

hoy added inline comments.


================
Comment at: llvm/lib/Transforms/IPO/SampleProfile.cpp:2402
+    // Use top-level nested FS for counting profile mismatch metrics since
+    // currently once a callsite is mismatched, all its children profile are
+    // dropped.
----------------
nit: profile -> profiles

> once a callsite is mismatched, all its children profile are drooped

Why children profiles can be dropped? Counting happens before inlining right?


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D158891/new/

https://reviews.llvm.org/D158891