[llvm] dbed9d5 - VersionPrinter - use const auto& iterator in for-range-loop.

[Simon Pilgrim via llvm-commits]

Author: Simon Pilgrim
Date: 2020-07-09T10:56:38+01:00
New Revision: dbed9d5ce7f5ab870b3ff20a14ee6c366c803fdb

URL: https://github.com/llvm/llvm-project/commit/dbed9d5ce7f5ab870b3ff20a14ee6c366c803fdb
DIFF: https://github.com/llvm/llvm-project/commit/dbed9d5ce7f5ab870b3ff20a14ee6c366c803fdb.diff

LOG: VersionPrinter - use const auto& iterator in for-range-loop.

Avoids unnecessary copies and silences clang tidy warning.

Added: 
    

Modified: 
    llvm/lib/Support/CommandLine.cpp

Removed: 
    


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diff  --git a/llvm/lib/Support/CommandLine.cpp b/llvm/lib/Support/CommandLine.cpp
index cee96083f700..12ef0d511b14 100644
--- a/llvm/lib/Support/CommandLine.cpp
+++ b/llvm/lib/Support/CommandLine.cpp
@@ -2537,7 +2537,7 @@ class VersionPrinter {
     // information.
     if (ExtraVersionPrinters != nullptr) {
       outs() << '\n';
-      for (auto I : *ExtraVersionPrinters)
+      for (const auto &I : *ExtraVersionPrinters)
         I(outs());
     }