diff --git a/clang/include/clang/Sema/Sema.h b/clang/include/clang/Sema/Sema.h
--- a/clang/include/clang/Sema/Sema.h
+++ b/clang/include/clang/Sema/Sema.h
@@ -13762,7 +13762,6 @@
   Scope *CurScope;
 
   mutable IdentifierInfo *Ident_super;
-  mutable IdentifierInfo *Ident___float128;
 
   /// Nullability type specifiers.
   IdentifierInfo *Ident__Nonnull = nullptr;
@@ -13811,7 +13810,6 @@
   }
 
   IdentifierInfo *getSuperIdentifier() const;
-  IdentifierInfo *getFloat128Identifier() const;
 
   ObjCContainerDecl *getObjCDeclContext() const;
 
diff --git a/clang/lib/Sema/Sema.cpp b/clang/lib/Sema/Sema.cpp
--- a/clang/lib/Sema/Sema.cpp
+++ b/clang/lib/Sema/Sema.cpp
@@ -202,10 +202,10 @@
       VisContext(nullptr), PragmaAttributeCurrentTargetDecl(nullptr),
       IsBuildingRecoveryCallExpr(false), LateTemplateParser(nullptr),
       LateTemplateParserCleanup(nullptr), OpaqueParser(nullptr), IdResolver(pp),
-      StdInitializerList(nullptr),
-      StdCoroutineTraitsCache(nullptr), CXXTypeInfoDecl(nullptr),
-      MSVCGuidDecl(nullptr), StdSourceLocationImplDecl(nullptr),
-      NSNumberDecl(nullptr), NSValueDecl(nullptr), NSStringDecl(nullptr),
+      StdInitializerList(nullptr), StdCoroutineTraitsCache(nullptr),
+      CXXTypeInfoDecl(nullptr), MSVCGuidDecl(nullptr),
+      StdSourceLocationImplDecl(nullptr), NSNumberDecl(nullptr),
+      NSValueDecl(nullptr), NSStringDecl(nullptr),
       StringWithUTF8StringMethod(nullptr),
       ValueWithBytesObjCTypeMethod(nullptr), NSArrayDecl(nullptr),
       ArrayWithObjectsMethod(nullptr), NSDictionaryDecl(nullptr),
@@ -218,7 +218,7 @@
       ArgumentPackSubstitutionIndex(-1), CurrentInstantiationScope(nullptr),
       DisableTypoCorrection(false), TyposCorrected(0), AnalysisWarnings(*this),
       ThreadSafetyDeclCache(nullptr), VarDataSharingAttributesStack(nullptr),
-      CurScope(nullptr), Ident_super(nullptr), Ident___float128(nullptr) {
+      CurScope(nullptr), Ident_super(nullptr) {
   assert(pp.TUKind == TUKind);
   TUScope = nullptr;
   isConstantEvaluatedOverride = false;
@@ -2678,12 +2678,6 @@
   return Ident_super;
 }
 
-IdentifierInfo *Sema::getFloat128Identifier() const {
-  if (!Ident___float128)
-    Ident___float128 = &Context.Idents.get("__float128");
-  return Ident___float128;
-}
-
 void Sema::PushCapturedRegionScope(Scope *S, CapturedDecl *CD, RecordDecl *RD,
                                    CapturedRegionKind K,
                                    unsigned OpenMPCaptureLevel) {