diff --git a/clang/lib/CodeGen/CodeGenModule.cpp b/clang/lib/CodeGen/CodeGenModule.cpp
--- a/clang/lib/CodeGen/CodeGenModule.cpp
+++ b/clang/lib/CodeGen/CodeGenModule.cpp
@@ -1627,7 +1627,7 @@
   Out << '.';
   const TargetInfo &Target = CGM.getTarget();
   ParsedTargetAttr Info = Target.parseTargetAttr(Attr->getFeaturesStr());
-  llvm::sort(Info.Features, [&Target](StringRef LHS, StringRef RHS) {
+  llvm::stable_sort(Info.Features, [&Target](StringRef LHS, StringRef RHS) {
     // Multiversioning doesn't allow "no-${feature}", so we can
     // only have "+" prefixes here.
     assert(LHS.startswith("+") && RHS.startswith("+") &&