[ORC] Pass symbol name to discard by const reference.

This saves some unnecessary atomic ref-counting operations.

llvm-svn: 343927

1 files changed, 1 insertions, 1 deletions

diff --git a/llvm/lib/ExecutionEngine/Orc/LazyReexports.cpp b/llvm/lib/ExecutionEngine/Orc/LazyReexports.cpp
index 72db80bea87..0d8049178b5 100644
--- a/llvm/lib/ExecutionEngine/Orc/LazyReexports.cpp
+++ b/llvm/lib/ExecutionEngine/Orc/LazyReexports.cpp
@@ -187,7 +187,7 @@ void LazyReexportsMaterializationUnit::materialize(
 }
 
 void LazyReexportsMaterializationUnit::discard(const JITDylib &JD,
-                                               SymbolStringPtr Name) {
+                                               const SymbolStringPtr &Name) {
   assert(CallableAliases.count(Name) &&
          "Symbol not covered by this MaterializationUnit");
   CallableAliases.erase(Name);