diff --git a/llvm/include/llvm/Object/ELF.h b/llvm/include/llvm/Object/ELF.h
--- a/llvm/include/llvm/Object/ELF.h
+++ b/llvm/include/llvm/Object/ELF.h
@@ -776,7 +776,7 @@
     return;
 
   FakeSectionStrings += '\0';
-  for (auto [Idx, Phdr] : llvm::enumerate(*PhdrsOrErr)) {
+  for (auto& [Idx, Phdr] : llvm::enumerate(*PhdrsOrErr)) {
     if (Phdr.p_type != ELF::PT_LOAD || !(Phdr.p_flags & ELF::PF_X))
       continue;
     Elf_Shdr FakeShdr = {};
diff --git a/llvm/lib/CodeGen/MLRegallocEvictAdvisor.cpp b/llvm/lib/CodeGen/MLRegallocEvictAdvisor.cpp
--- a/llvm/lib/CodeGen/MLRegallocEvictAdvisor.cpp
+++ b/llvm/lib/CodeGen/MLRegallocEvictAdvisor.cpp
@@ -892,7 +892,7 @@
     NrRematerializable += LIFC.IsRemat;
 
     if (EnableDevelopmentFeatures) {
-      for (auto CurrentSegment : LI) {
+      for (auto &CurrentSegment : LI) {
         LRPosInfo.push_back(
             LRStartEndInfo{CurrentSegment.start, CurrentSegment.end, Pos});
       }