Driver: Pass some std::strings by reference instead of value

No functional change intended. This fixes PR21463.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@221249 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Driver/ToolChains.cpp b/lib/Driver/ToolChains.cpp
index 15e3ade0a1f9570df1f22bade2bb2676f036a619..643eeec0c93687247d88b44f41e7a75c10eb7baf 100644 (file)
--- a/lib/Driver/ToolChains.cpp
+++ b/lib/Driver/ToolChains.cpp
@@ -2088,8 +2088,8 @@ std::string Hexagon_TC::GetGnuDir(const std::string &InstalledDir) {
 
 static void GetHexagonLibraryPaths(
   const ArgList &Args,
-  const std::string Ver,
-  const std::string MarchString,
+  const std::string &Ver,
+  const std::string &MarchString,
   const std::string &InstalledDir,
   ToolChain::path_list *LibPaths)
 {