[PATCH] D84378: [PGO] Fix incorrect function entry count

[David Li via Phabricator via llvm-commits]

davidxl added inline comments.


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Comment at: llvm/lib/Transforms/Instrumentation/PGOInstrumentation.cpp:1144
+    // Fix it if necessary.
+    if (InstrBB == FuncEntry && CountValue == 0)
+      CountValue = 1;
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add comment here about the root cause: counter cleared before dump. 

If counter promotion is disabled, in what situation entry count can not be recovered with propagation?



CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D84378/new/

https://reviews.llvm.org/D84378