Remove std::move on return when it could prevent copy elision.

Found by -Wpessimizing-move, no functional change. The APFloat and
PassManager change doesn't affect codegen as returning a by-value
argument will always result in a move.

llvm-svn: 236316

1 files changed, 1 insertions, 1 deletions

diff --git a/llvm/utils/yaml-bench/YAMLBench.cpp b/llvm/utils/yaml-bench/YAMLBench.cpp
index 872f586ef7e..0fb31387fc2 100644
--- a/llvm/utils/yaml-bench/YAMLBench.cpp
+++ b/llvm/utils/yaml-bench/YAMLBench.cpp
@@ -69,7 +69,7 @@ static std::string prettyTag(yaml::Node *N) {
   if (StringRef(Tag).startswith("tag:yaml.org,2002:")) {
     std::string Ret = "!!";
     Ret += StringRef(Tag).substr(18);
-    return std::move(Ret);
+    return Ret;
   }
   std::string Ret = "!<";
   Ret += Tag;