commit b06ea25b4c4cff341194279e01c08d23fa022378
author Jakub Staszak <kubastaszak@gmail.com> Mon Sep 16 22:03:38 2013 +0000
committer Jakub Staszak <kubastaszak@gmail.com> Mon Sep 16 22:03:38 2013 +0000
tree 3f71872af461d1721ba5535f45c22014f6486de3
parent 26a6348612e825a3ab636dee2f6e79212b2bda44

Use reference instead of copy.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190813 91177308-0d34-0410-b5e6-96231b3b80d8

lib/MC/MCParser/AsmParser.cpp

diff --git a/lib/MC/MCParser/AsmParser.cpp b/lib/MC/MCParser/AsmParser.cpp
index ae88a3e..2733f64 100644
--- a/lib/MC/MCParser/AsmParser.cpp
+++ b/lib/MC/MCParser/AsmParser.cpp
@@ -1646,7 +1646,7 @@
   // Use the CppHashFilename and calculate a line number based on the
   // CppHashLoc and CppHashLineNumber relative to this Diag's SMLoc for
   // the diagnostic.
-  const std::string Filename = Parser->CppHashFilename;
+  const std::string &Filename = Parser->CppHashFilename;
 
   int DiagLocLineNo = DiagSrcMgr.FindLineNumber(DiagLoc, DiagBuf);
   int CppHashLocLineNo =