commit be22e5ccbea07806a99510484dd432c8f1ac611b
author Tim Northover <tnorthover@apple.com> Tue Jul 05 22:51:30 2016 +0000
committer Tim Northover <tnorthover@apple.com> Tue Jul 05 22:51:30 2016 +0000
tree f210c437a11d555995776a2b79526ae76b42b5b1
parent 7643b337a276e0fe3b6388885e14e87efa6ba48b

TableGen: avoid string copy.

llvm-svn: 274584

llvm/utils/TableGen/SearchableTableEmitter.cpp

diff --git a/llvm/utils/TableGen/SearchableTableEmitter.cpp b/llvm/utils/TableGen/SearchableTableEmitter.cpp
index 1b0e67f..8c1b8804 100644
--- a/llvm/utils/TableGen/SearchableTableEmitter.cpp
+++ b/llvm/utils/TableGen/SearchableTableEmitter.cpp
@@ -230,7 +230,7 @@
 
 void SearchableTableEmitter::emitMapping(Record *InstanceClass,
                                          raw_ostream &OS) {
-  std::string TableName = InstanceClass->getName();
+  const std::string &TableName = InstanceClass->getName();
   std::vector<Record *> Items = Records.getAllDerivedDefinitions(TableName);
 
   // Gather all the records we're going to need for this particular mapping.