diff --git a/llvm/lib/MC/MCContext.cpp b/llvm/lib/MC/MCContext.cpp
index aa15ff6..67463e5 100644
--- a/llvm/lib/MC/MCContext.cpp
+++ b/llvm/lib/MC/MCContext.cpp
@@ -285,6 +285,22 @@
              Segment, Section, TypeAndAttributes, Reserved2, Kind, Begin);
 }
 
+void MCContext::renameELFSection(MCSectionELF *Section, StringRef Name) {
+  StringRef GroupName;
+  if (const MCSymbol *Group = Section->getGroup())
+    GroupName = Group->getName();
+
+  unsigned UniqueID = Section->getUniqueID();
+  ELFUniquingMap.erase(
+      ELFSectionKey{Section->getSectionName(), GroupName, UniqueID});
+  auto I = ELFUniquingMap.insert(std::make_pair(
+                                     ELFSectionKey{Name, GroupName, UniqueID},
+                                     Section))
+               .first;
+  StringRef CachedName = I->first.SectionName;
+  const_cast<MCSectionELF *>(Section)->setSectionName(CachedName);
+}
+
 MCSectionELF *MCContext::createELFRelSection(StringRef Name, unsigned Type,
                                              unsigned Flags, unsigned EntrySize,
                                              const MCSymbolELF *Group,