diff --git a/llvm/tools/llvm-profgen/PerfReader.cpp b/llvm/tools/llvm-profgen/PerfReader.cpp
index 98b4c7cdf169..46422ce47089 100644
--- a/llvm/tools/llvm-profgen/PerfReader.cpp
+++ b/llvm/tools/llvm-profgen/PerfReader.cpp
@@ -1212,7 +1212,6 @@ void PerfScriptReader::parsePerfTraces() {
   warnTruncatedStack();
   warnInvalidRange();
   generateUnsymbolizedProfile();
-  AggregatedSamples.clear();
 
   if (SkipSymbolization)
     writeUnsymbolizedProfile(OutputFilename);
diff --git a/llvm/tools/llvm-profgen/llvm-profgen.cpp b/llvm/tools/llvm-profgen/llvm-profgen.cpp
index b2728ae41872..f092df04d52b 100644
--- a/llvm/tools/llvm-profgen/llvm-profgen.cpp
+++ b/llvm/tools/llvm-profgen/llvm-profgen.cpp
@@ -158,9 +158,6 @@ int main(int argc, const char *argv[]) {
       ProfileGeneratorBase::create(Binary.get(), Reader->getSampleCounters(),
                                    Reader->profileIsCSFlat());
   Generator->generateProfile();
-  // The Reader object, espcially its SampleCounters field, is not needed at
-  // this point, so releasing it to reduce peak memory usage.
-  Reader.release();
   Generator->write();
 
   return EXIT_SUCCESS;