[PATCH] D111577: [llvm-profgen] Ignore stack samples before aggregation

[Lei Wang via Phabricator via llvm-commits]

wlei created this revision.
Herald added subscribers: hoy, wenlei, lxfind.
wlei requested review of this revision.
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Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D111577

Files:
  llvm/tools/llvm-profgen/PerfReader.cpp


Index: llvm/tools/llvm-profgen/PerfReader.cpp
===================================================================
--- llvm/tools/llvm-profgen/PerfReader.cpp
+++ llvm/tools/llvm-profgen/PerfReader.cpp
@@ -650,6 +650,8 @@
       // Canonicalize stack leaf to avoid 'random' IP from leaf frame skew LBR
       // ranges
       Sample->CallStack.front() = Sample->LBRStack[0].Target;
+      if(IgnoreStackSamples)
+        Sample->CallStack.clear();
       // Record samples by aggregation
       AggregatedSamples[Hashable<PerfSample>(Sample)] += Count;
     }


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