[clang-tools-extra] f88e018 - [clangd] Add explicit std::move(...) to avoid a few copies (#180475)

[via cfe-commits]

Author: serge-sans-paille
Date: 2026-02-09T11:35:13Z
New Revision: f88e0185d7333827f5342143e7c515fc8fb57020

URL: https://github.com/llvm/llvm-project/commit/f88e0185d7333827f5342143e7c515fc8fb57020
DIFF: https://github.com/llvm/llvm-project/commit/f88e0185d7333827f5342143e7c515fc8fb57020.diff

LOG: [clangd] Add explicit std::move(...) to avoid a few copies (#180475)

Moving an std::map is almost always profitable (DiagnosticToDiagRefMap).

Changes suggested by performance-use-std-move from #179467

Added: 
    

Modified: 
    clang-tools-extra/clangd/ClangdLSPServer.cpp

Removed: 
    


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diff  --git a/clang-tools-extra/clangd/ClangdLSPServer.cpp b/clang-tools-extra/clangd/ClangdLSPServer.cpp
index 761b07eceec83..ebd42abd2dd61 100644
--- a/clang-tools-extra/clangd/ClangdLSPServer.cpp
+++ b/clang-tools-extra/clangd/ClangdLSPServer.cpp
@@ -1833,7 +1833,7 @@ void ClangdLSPServer::onDiagnosticsReady(PathRef File, llvm::StringRef Version,
   // Cache DiagRefMap
   {
     std::lock_guard<std::mutex> Lock(DiagRefMutex);
-    DiagRefMap[File] = LocalDiagMap;
+    DiagRefMap[File] = std::move(LocalDiagMap);
   }
 
   // Send a notification to the LSP client.