[llvm] a93b77c - [memprof] Fix IndexedMemProfRecord::clear (#118533)

[via llvm-commits]

Author: Kazu Hirata
Date: 2024-12-03T19:23:27-08:00
New Revision: a93b77ce49978dd8fb0d60d9aec8e300b67ce0b8

URL: https://github.com/llvm/llvm-project/commit/a93b77ce49978dd8fb0d60d9aec8e300b67ce0b8
DIFF: https://github.com/llvm/llvm-project/commit/a93b77ce49978dd8fb0d60d9aec8e300b67ce0b8.diff

LOG: [memprof] Fix IndexedMemProfRecord::clear (#118533)

This patch ensures that IndexedMemProfRecord::clear clears every field
of IndexedMemProfRecord.

This fix is not critical at the moment.  The only use of this function
is in RecordWriterTrait::EmitData to release the memory we are done
with.  That is, we never clear the data structure for the purpose of
reusing it.

Added: 
    

Modified: 
    llvm/include/llvm/ProfileData/MemProf.h

Removed: 
    


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diff  --git a/llvm/include/llvm/ProfileData/MemProf.h b/llvm/include/llvm/ProfileData/MemProf.h
index 47487c9342594a..6ffead4f13aebc 100644
--- a/llvm/include/llvm/ProfileData/MemProf.h
+++ b/llvm/include/llvm/ProfileData/MemProf.h
@@ -416,7 +416,7 @@ struct IndexedMemProfRecord {
   // the last entry in the list with the same function GUID.
   llvm::SmallVector<CallStackId> CallSiteIds;
 
-  void clear() { AllocSites.clear(); }
+  void clear() { *this = IndexedMemProfRecord(); }
 
   void merge(const IndexedMemProfRecord &Other) {
     // TODO: Filter out duplicates which may occur if multiple memprof