[llvm] 26ac742 - [memprof] std::move matchings (NFC) (#128933)

[via llvm-commits]

Author: Kazu Hirata
Date: 2025-02-26T15:03:51-08:00
New Revision: 26ac7429d1d6aed080430e8f5d890531b1054f2d

URL: https://github.com/llvm/llvm-project/commit/26ac7429d1d6aed080430e8f5d890531b1054f2d
DIFF: https://github.com/llvm/llvm-project/commit/26ac7429d1d6aed080430e8f5d890531b1054f2d.diff

LOG: [memprof] std::move matchings (NFC) (#128933)

We do not use Matchings after we call try_emplace, so we can just
std::move Matchings.

Added: 
    

Modified: 
    llvm/lib/Transforms/Instrumentation/MemProfiler.cpp

Removed: 
    


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diff  --git a/llvm/lib/Transforms/Instrumentation/MemProfiler.cpp b/llvm/lib/Transforms/Instrumentation/MemProfiler.cpp
index 7d8bc3aa4c589..c6352df39bba5 100644
--- a/llvm/lib/Transforms/Instrumentation/MemProfiler.cpp
+++ b/llvm/lib/Transforms/Instrumentation/MemProfiler.cpp
@@ -929,11 +929,11 @@ memprof::computeUndriftMap(Module &M, IndexedInstrProfReader *MemProfReader,
     longestCommonSequence<LineLocation, GlobalValue::GUID>(
         ProfileAnchors, IRAnchors, std::equal_to<GlobalValue::GUID>(),
         [&](LineLocation A, LineLocation B) { Matchings.try_emplace(A, B); });
-    bool Inserted = UndriftMaps.try_emplace(CallerGUID, Matchings).second;
+    [[maybe_unused]] bool Inserted =
+        UndriftMaps.try_emplace(CallerGUID, std::move(Matchings)).second;
 
     // The insertion must succeed because we visit each GUID exactly once.
     assert(Inserted);
-    (void)Inserted;
   }
 
   return UndriftMaps;