diff --git a/llvm/tools/llvm-nm/llvm-nm.cpp b/llvm/tools/llvm-nm/llvm-nm.cpp
--- a/llvm/tools/llvm-nm/llvm-nm.cpp
+++ b/llvm/tools/llvm-nm/llvm-nm.cpp
@@ -711,17 +711,17 @@
                                    const std::string &ArchiveName,
                                    const std::string &ArchitectureName) {
   if (!NoSort) {
-    std::function<bool(const NMSymbol &, const NMSymbol &)> Cmp;
-    if (NumericSort)
-      Cmp = compareSymbolAddress;
-    else if (SizeSort)
-      Cmp = compareSymbolSize;
-    else
-      Cmp = compareSymbolName;
+    using Comparator = bool (*)(const NMSymbol &, const NMSymbol &);
+    Comparator Cmp = NumericSort
+                         ? &compareSymbolAddress
+                         : (SizeSort ? &compareSymbolSize : &compareSymbolName);
 
     if (ReverseSort)
-      Cmp = [=](const NMSymbol &A, const NMSymbol &B) { return Cmp(B, A); };
-    llvm::sort(SymbolList, Cmp);
+      llvm::sort(SymbolList, [=](const NMSymbol &A, const NMSymbol &B) -> bool {
+        return Cmp(B, A);
+      });
+    else
+      llvm::sort(SymbolList, Cmp);
   }
 
   if (!PrintFileName) {