[clang] 8277a51 - [SourceManager] Avoid copying SLocEntry in computeMacroArgsCache

[Jan Korous via cfe-commits]

Author: Jan Korous
Date: 2020-10-22T14:18:28-07:00
New Revision: 8277a513c74b53e5ad7f482f76b27bc8609c66ae

URL: https://github.com/llvm/llvm-project/commit/8277a513c74b53e5ad7f482f76b27bc8609c66ae
DIFF: https://github.com/llvm/llvm-project/commit/8277a513c74b53e5ad7f482f76b27bc8609c66ae.diff

LOG: [SourceManager] Avoid copying SLocEntry in computeMacroArgsCache

Follow-up to e7870223d8b5

Differential Revision: https://reviews.llvm.org/D86230

Added: 
    

Modified: 
    clang/lib/Basic/SourceManager.cpp

Removed: 
    


################################################################################
diff  --git a/clang/lib/Basic/SourceManager.cpp b/clang/lib/Basic/SourceManager.cpp
index 3bffcb548ebb..db87a6e57741 100644
--- a/clang/lib/Basic/SourceManager.cpp
+++ b/clang/lib/Basic/SourceManager.cpp
@@ -1761,7 +1761,7 @@ void SourceManager::computeMacroArgsCache(MacroArgsMap &MacroArgsCache,
     if (Invalid)
       return;
     if (Entry.isFile()) {
-      auto File = Entry.getFile();
+      auto& File = Entry.getFile();
       if (File.getFileCharacteristic() == C_User_ModuleMap ||
           File.getFileCharacteristic() == C_System_ModuleMap)
         continue;