diff --git a/clang/include/clang/Basic/Builtins.h b/clang/include/clang/Basic/Builtins.h
index 89f65682ae5b41..a9bb6efe850cc6 100644
--- a/clang/include/clang/Basic/Builtins.h
+++ b/clang/include/clang/Basic/Builtins.h
@@ -55,6 +55,7 @@ struct HeaderDesc {
 #undef HEADER
   } ID;
 
+  constexpr HeaderDesc() : ID() {}
   constexpr HeaderDesc(HeaderID ID) : ID(ID) {}
 
   const char *getName() const;
@@ -68,14 +69,140 @@ enum ID {
   FirstTSBuiltin
 };
 
+// The info used to represent each builtin.
 struct Info {
-  llvm::StringLiteral Name;
-  const char *Type, *Attributes;
-  const char *Features;
+  // Rather than store pointers to the string literals describing these four
+  // aspects of builtins, we store offsets into a common string table.
+  struct StrOffsets {
+    int Name;
+    int Type;
+    int Attributes;
+    int Features;
+  } Offsets;
+
   HeaderDesc Header;
   LanguageID Langs;
 };
 
+// The storage for `N` builtins. This contains a single pointer to the string
+// table used for these builtins and an array of metadata for each builtin.
+template <size_t N> struct Storage {
+  const char *StringTable;
+
+  std::array<Info, N> Infos;
+
+  // A constexpr function to construct the storage for a a given string table in
+  // the first argument and an array in the second argument. This is *only*
+  // expected to be used at compile time, we should mark it `consteval` when
+  // available.
+  //
+  // The `Infos` array is particularly special. This function expects an array
+  // of `Info` structs, where the string offsets of each entry refer to the
+  // *sizes* of those strings rather than their offsets, and for the target
+  // string to be in the provided string table at an offset the sum of all
+  // previous string sizes. This function walks the `Infos` array computing the
+  // running sum and replacing the sizes with the actual offsets in the string
+  // table that should be used. This arrangement is designed to make it easy to
+  // expand `.def` and `.inc` files with X-macros to construct both the string
+  // table and the `Info` structs in the arguments to this function.
+  static constexpr Storage<N> Make(const char *Strings,
+                                   std::array<Info, N> Infos) {
+    // Translate lengths to offsets.
+    int Offset = 0;
+    for (auto &I : Infos) {
+      Info::StrOffsets NewOffsets = {};
+      NewOffsets.Name = Offset;
+      Offset += I.Offsets.Name;
+      NewOffsets.Type = Offset;
+      Offset += I.Offsets.Type;
+      NewOffsets.Attributes = Offset;
+      Offset += I.Offsets.Attributes;
+      NewOffsets.Features = Offset;
+      Offset += I.Offsets.Features;
+      I.Offsets = NewOffsets;
+    }
+    return {Strings, Infos};
+  }
+};
+
+// A detail macro used below to emit a string literal that, after string literal
+// concatenation, ends up triggering the `-Woverlength-strings` warning. While
+// the warning is useful in general to catch accidentally excessive strings,
+// here we are creating them intentionally.
+//
+// This relies on a subtle aspect of `_Pragma`: that the *diagnostic* ones don't
+// turn into actual tokens that would disrupt string literal concatenation.
+#ifdef __clang__
+#define CLANG_BUILTIN_DETAIL_STR_TABLE(S)                                      \
+  _Pragma("clang diagnostic push")                                             \
+      _Pragma("clang diagnostic ignored \"-Woverlength-strings\"")             \
+          S _Pragma("clang diagnostic pop")
+#else
+#define CLANG_BUILTIN_DETAIL_STR_TABLE(S) S
+#endif
+
+// A macro that can be used with `Builtins.def` and similar files as an X-macro
+// to add the string arguments to a builtin string table. This is typically the
+// target for the `BUILTIN`, `LANGBUILTIN`, or `LIBBUILTIN` macros in those
+// files.
+#define CLANG_BUILTIN_STR_TABLE(ID, TYPE, ATTRS)                               \
+  CLANG_BUILTIN_DETAIL_STR_TABLE(#ID "\0" TYPE "\0" ATTRS "\0" /*FEATURE*/ "\0")
+
+// A macro that can be used with target builtin `.def` and `.inc` files as an
+// X-macro to add the string arguments to a builtin string table. this is
+// typically the target for the `TARGET_BUILTIN` macro.
+#define CLANG_TARGET_BUILTIN_STR_TABLE(ID, TYPE, ATTRS, FEATURE)               \
+  CLANG_BUILTIN_DETAIL_STR_TABLE(#ID "\0" TYPE "\0" ATTRS "\0" FEATURE "\0")
+
+// A macro that can be used with target builtin `.def` and `.inc` files as an
+// X-macro to add the string arguments to a builtin string table. this is
+// typically the target for the `TARGET_HEADER_BUILTIN` macro. We can't delegate
+// to `TARGET_BUILTIN` because the `FEATURE` string changes position.
+#define CLANG_TARGET_HEADER_BUILTIN_STR_TABLE(ID, TYPE, ATTRS, HEADER, LANGS,  \
+                                              FEATURE)                         \
+  CLANG_BUILTIN_DETAIL_STR_TABLE(#ID "\0" TYPE "\0" ATTRS "\0" FEATURE "\0")
+
+// A detail macro used internally to compute the desired string table
+// `StrOffsets` struct for arguments to `Storage::Make`.
+#define CLANG_BUILTIN_DETAIL_STR_OFFSETS(ID, TYPE, ATTRS)                      \
+  Builtin::Info::StrOffsets {                                                  \
+    sizeof(#ID), sizeof(TYPE), sizeof(ATTRS), sizeof("")                       \
+  }
+
+// A detail macro used internally to compute the desired string table
+// `StrOffsets` struct for arguments to `Storage::Make`.
+#define CLANG_TARGET_BUILTIN_DETAIL_STR_OFFSETS(ID, TYPE, ATTRS, FEATURE)      \
+  Builtin::Info::StrOffsets {                                                  \
+    sizeof(#ID), sizeof(TYPE), sizeof(ATTRS), sizeof(FEATURE)                  \
+  }
+
+// A set of macros that can be used with builtin `.def' files as an X-macro to
+// create an `Info` struct for a particular builtin. It both computes the
+// `StrOffsets` value for the string table (the lengths here, translated to
+// offsets by the Storage::Make function), and the other metadata for each
+// builtin.
+//
+// There is a corresponding macro for each of `BUILTIN`, `LANGBUILTIN`,
+// `LIBBUILTIN`, `TARGET_BUILTIN`, and `TARGET_HEADER_BUILTIN`.
+#define CLANG_BUILTIN_ENTRY(ID, TYPE, ATTRS)                                   \
+  Builtin::Info{CLANG_BUILTIN_DETAIL_STR_OFFSETS(ID, TYPE, ATTRS),             \
+                HeaderDesc::NO_HEADER, ALL_LANGUAGES},
+#define CLANG_LANGBUILTIN_ENTRY(ID, TYPE, ATTRS, LANG)                         \
+  Builtin::Info{CLANG_BUILTIN_DETAIL_STR_OFFSETS(ID, TYPE, ATTRS),             \
+                HeaderDesc::NO_HEADER, LANG},
+#define CLANG_LIBBUILTIN_ENTRY(ID, TYPE, ATTRS, HEADER, LANG)                  \
+  Builtin::Info{CLANG_BUILTIN_DETAIL_STR_OFFSETS(ID, TYPE, ATTRS),             \
+                HeaderDesc::HEADER, LANG},
+#define CLANG_TARGET_BUILTIN_ENTRY(ID, TYPE, ATTRS, FEATURE)                   \
+  Builtin::Info{                                                               \
+      CLANG_TARGET_BUILTIN_DETAIL_STR_OFFSETS(ID, TYPE, ATTRS, FEATURE),       \
+      HeaderDesc::NO_HEADER, ALL_LANGUAGES},
+#define CLANG_TARGET_HEADER_BUILTIN_ENTRY(ID, TYPE, ATTRS, HEADER, LANG,       \
+                                          FEATURE)                             \
+  Builtin::Info{                                                               \
+      CLANG_TARGET_BUILTIN_DETAIL_STR_OFFSETS(ID, TYPE, ATTRS, FEATURE),       \
+      HeaderDesc::HEADER, LANG},
+
 /// Holds information about both target-independent and
 /// target-specific builtins, allowing easy queries by clients.
 ///
@@ -83,8 +210,11 @@ struct Info {
 /// AuxTSRecords. Their IDs are shifted up by TSRecords.size() and need to
 /// be translated back with getAuxBuiltinID() before use.
 class Context {
-  llvm::ArrayRef<Info> TSRecords;
-  llvm::ArrayRef<Info> AuxTSRecords;
+  const char *TSStrTable = nullptr;
+  const char *AuxTSStrTable = nullptr;
+
+  llvm::ArrayRef<Info> TSInfos;
+  llvm::ArrayRef<Info> AuxTSInfos;
 
 public:
   Context() = default;
@@ -100,12 +230,13 @@ class Context {
 
   /// Return the identifier name for the specified builtin,
   /// e.g. "__builtin_abs".
-  llvm::StringRef getName(unsigned ID) const { return getRecord(ID).Name; }
+  llvm::StringRef getName(unsigned ID) const;
 
   /// Get the type descriptor string for the specified builtin.
-  const char *getTypeString(unsigned ID) const {
-    return getRecord(ID).Type;
-  }
+  const char *getTypeString(unsigned ID) const;
+
+  /// Get the attributes descriptor string for the specified builtin.
+  const char *getAttributesString(unsigned ID) const;
 
   /// Return true if this function is a target-specific builtin.
   bool isTSBuiltin(unsigned ID) const {
@@ -114,40 +245,40 @@ class Context {
 
   /// Return true if this function has no side effects.
   bool isPure(unsigned ID) const {
-    return strchr(getRecord(ID).Attributes, 'U') != nullptr;
+    return strchr(getAttributesString(ID), 'U') != nullptr;
   }
 
   /// Return true if this function has no side effects and doesn't
   /// read memory.
   bool isConst(unsigned ID) const {
-    return strchr(getRecord(ID).Attributes, 'c') != nullptr;
+    return strchr(getAttributesString(ID), 'c') != nullptr;
   }
 
   /// Return true if we know this builtin never throws an exception.
   bool isNoThrow(unsigned ID) const {
-    return strchr(getRecord(ID).Attributes, 'n') != nullptr;
+    return strchr(getAttributesString(ID), 'n') != nullptr;
   }
 
   /// Return true if we know this builtin never returns.
   bool isNoReturn(unsigned ID) const {
-    return strchr(getRecord(ID).Attributes, 'r') != nullptr;
+    return strchr(getAttributesString(ID), 'r') != nullptr;
   }
 
   /// Return true if we know this builtin can return twice.
   bool isReturnsTwice(unsigned ID) const {
-    return strchr(getRecord(ID).Attributes, 'j') != nullptr;
+    return strchr(getAttributesString(ID), 'j') != nullptr;
   }
 
   /// Returns true if this builtin does not perform the side-effects
   /// of its arguments.
   bool isUnevaluated(unsigned ID) const {
-    return strchr(getRecord(ID).Attributes, 'u') != nullptr;
+    return strchr(getAttributesString(ID), 'u') != nullptr;
   }
 
   /// Return true if this is a builtin for a libc/libm function,
   /// with a "__builtin_" prefix (e.g. __builtin_abs).
   bool isLibFunction(unsigned ID) const {
-    return strchr(getRecord(ID).Attributes, 'F') != nullptr;
+    return strchr(getAttributesString(ID), 'F') != nullptr;
   }
 
   /// Determines whether this builtin is a predefined libc/libm
@@ -158,21 +289,21 @@ class Context {
   /// they do not, but they are recognized as builtins once we see
   /// a declaration.
   bool isPredefinedLibFunction(unsigned ID) const {
-    return strchr(getRecord(ID).Attributes, 'f') != nullptr;
+    return strchr(getAttributesString(ID), 'f') != nullptr;
   }
 
   /// Returns true if this builtin requires appropriate header in other
   /// compilers. In Clang it will work even without including it, but we can emit
   /// a warning about missing header.
   bool isHeaderDependentFunction(unsigned ID) const {
-    return strchr(getRecord(ID).Attributes, 'h') != nullptr;
+    return strchr(getAttributesString(ID), 'h') != nullptr;
   }
 
   /// Determines whether this builtin is a predefined compiler-rt/libgcc
   /// function, such as "__clear_cache", where we know the signature a
   /// priori.
   bool isPredefinedRuntimeFunction(unsigned ID) const {
-    return strchr(getRecord(ID).Attributes, 'i') != nullptr;
+    return strchr(getAttributesString(ID), 'i') != nullptr;
   }
 
   /// Determines whether this builtin is a C++ standard library function
@@ -180,7 +311,7 @@ class Context {
   /// specialization, where the signature is determined by the standard library
   /// declaration.
   bool isInStdNamespace(unsigned ID) const {
-    return strchr(getRecord(ID).Attributes, 'z') != nullptr;
+    return strchr(getAttributesString(ID), 'z') != nullptr;
   }
 
   /// Determines whether this builtin can have its address taken with no
@@ -194,33 +325,33 @@ class Context {
 
   /// Determines whether this builtin has custom typechecking.
   bool hasCustomTypechecking(unsigned ID) const {
-    return strchr(getRecord(ID).Attributes, 't') != nullptr;
+    return strchr(getAttributesString(ID), 't') != nullptr;
   }
 
   /// Determines whether a declaration of this builtin should be recognized
   /// even if the type doesn't match the specified signature.
   bool allowTypeMismatch(unsigned ID) const {
-    return strchr(getRecord(ID).Attributes, 'T') != nullptr ||
+    return strchr(getAttributesString(ID), 'T') != nullptr ||
            hasCustomTypechecking(ID);
   }
 
   /// Determines whether this builtin has a result or any arguments which
   /// are pointer types.
   bool hasPtrArgsOrResult(unsigned ID) const {
-    return strchr(getRecord(ID).Type, '*') != nullptr;
+    return strchr(getTypeString(ID), '*') != nullptr;
   }
 
   /// Return true if this builtin has a result or any arguments which are
   /// reference types.
   bool hasReferenceArgsOrResult(unsigned ID) const {
-    return strchr(getRecord(ID).Type, '&') != nullptr ||
-           strchr(getRecord(ID).Type, 'A') != nullptr;
+    return strchr(getTypeString(ID), '&') != nullptr ||
+           strchr(getTypeString(ID), 'A') != nullptr;
   }
 
   /// If this is a library function that comes from a specific
   /// header, retrieve that header name.
   const char *getHeaderName(unsigned ID) const {
-    return getRecord(ID).Header.getName();
+    return getInfo(ID).Header.getName();
   }
 
   /// Determine whether this builtin is like printf in its
@@ -245,27 +376,25 @@ class Context {
   /// Such functions can be const when the MathErrno lang option and FP
   /// exceptions are disabled.
   bool isConstWithoutErrnoAndExceptions(unsigned ID) const {
-    return strchr(getRecord(ID).Attributes, 'e') != nullptr;
+    return strchr(getAttributesString(ID), 'e') != nullptr;
   }
 
   bool isConstWithoutExceptions(unsigned ID) const {
-    return strchr(getRecord(ID).Attributes, 'g') != nullptr;
+    return strchr(getAttributesString(ID), 'g') != nullptr;
   }
 
-  const char *getRequiredFeatures(unsigned ID) const {
-    return getRecord(ID).Features;
-  }
+  const char *getRequiredFeatures(unsigned ID) const;
 
   unsigned getRequiredVectorWidth(unsigned ID) const;
 
   /// Return true if builtin ID belongs to AuxTarget.
   bool isAuxBuiltinID(unsigned ID) const {
-    return ID >= (Builtin::FirstTSBuiltin + TSRecords.size());
+    return ID >= (Builtin::FirstTSBuiltin + TSInfos.size());
   }
 
   /// Return real builtin ID (i.e. ID it would have during compilation
   /// for AuxTarget).
-  unsigned getAuxBuiltinID(unsigned ID) const { return ID - TSRecords.size(); }
+  unsigned getAuxBuiltinID(unsigned ID) const { return ID - TSInfos.size(); }
 
   /// Returns true if this is a libc/libm function without the '__builtin_'
   /// prefix.
@@ -277,16 +406,20 @@ class Context {
 
   /// Return true if this function can be constant evaluated by Clang frontend.
   bool isConstantEvaluated(unsigned ID) const {
-    return strchr(getRecord(ID).Attributes, 'E') != nullptr;
+    return strchr(getAttributesString(ID), 'E') != nullptr;
   }
 
   /// Returns true if this is an immediate (consteval) function
   bool isImmediate(unsigned ID) const {
-    return strchr(getRecord(ID).Attributes, 'G') != nullptr;
+    return strchr(getAttributesString(ID), 'G') != nullptr;
   }
 
 private:
-  const Info &getRecord(unsigned ID) const;
+  std::pair<const char *, const Info &> getStrTableAndInfo(unsigned ID) const;
+
+  const Info &getInfo(unsigned ID) const {
+    return getStrTableAndInfo(ID).second;
+  }
 
   /// Helper function for isPrintfLike and isScanfLike.
   bool isLike(unsigned ID, unsigned &FormatIdx, bool &HasVAListArg,
diff --git a/clang/include/clang/Basic/BuiltinsPPC.def b/clang/include/clang/Basic/BuiltinsPPC.def
index 161df386f00f03..bb7d54bbb793eb 100644
--- a/clang/include/clang/Basic/BuiltinsPPC.def
+++ b/clang/include/clang/Basic/BuiltinsPPC.def
@@ -1138,5 +1138,6 @@ UNALIASED_CUSTOM_BUILTIN(mma_pmxvbf16ger2nn, "vW512*VVi15i15i3", true,
 // FIXME: Obviously incomplete.
 
 #undef BUILTIN
+#undef TARGET_BUILTIN
 #undef CUSTOM_BUILTIN
 #undef UNALIASED_CUSTOM_BUILTIN
diff --git a/clang/include/clang/Basic/TargetInfo.h b/clang/include/clang/Basic/TargetInfo.h
index 4420228793e95f..52a1ac9781395c 100644
--- a/clang/include/clang/Basic/TargetInfo.h
+++ b/clang/include/clang/Basic/TargetInfo.h
@@ -16,6 +16,7 @@
 
 #include "clang/Basic/AddressSpaces.h"
 #include "clang/Basic/BitmaskEnum.h"
+#include "clang/Basic/Builtins.h"
 #include "clang/Basic/CFProtectionOptions.h"
 #include "clang/Basic/CodeGenOptions.h"
 #include "clang/Basic/LLVM.h"
@@ -1009,11 +1010,11 @@ class TargetInfo : public TransferrableTargetInfo,
   virtual void getTargetDefines(const LangOptions &Opts,
                                 MacroBuilder &Builder) const = 0;
 
-
-  /// Return information about target-specific builtins for
-  /// the current primary target, and info about which builtins are non-portable
-  /// across the current set of primary and secondary targets.
-  virtual ArrayRef<Builtin::Info> getTargetBuiltins() const = 0;
+  /// Return information about target-specific builtins for the current primary
+  /// target, and info about which builtins are non-portable across the current
+  /// set of primary and secondary targets.
+  virtual std::pair<const char *, ArrayRef<Builtin::Info>>
+  getTargetBuiltinStorage() const = 0;
 
   /// Returns target-specific min and max values VScale_Range.
   virtual std::optional<std::pair<unsigned, unsigned>>
diff --git a/clang/lib/Basic/Builtins.cpp b/clang/lib/Basic/Builtins.cpp
index 25a601573698e7..c991139b8d5ad7 100644
--- a/clang/lib/Basic/Builtins.cpp
+++ b/clang/lib/Basic/Builtins.cpp
@@ -29,54 +29,93 @@ const char *HeaderDesc::getName() const {
   llvm_unreachable("Unknown HeaderDesc::HeaderID enum");
 }
 
-static constexpr Builtin::Info BuiltinInfo[] = {
-    {"not a builtin function", nullptr, nullptr, nullptr, HeaderDesc::NO_HEADER,
-     ALL_LANGUAGES},
-#define BUILTIN(ID, TYPE, ATTRS)                                               \
-  {#ID, TYPE, ATTRS, nullptr, HeaderDesc::NO_HEADER, ALL_LANGUAGES},
-#define LANGBUILTIN(ID, TYPE, ATTRS, LANGS)                                    \
-  {#ID, TYPE, ATTRS, nullptr, HeaderDesc::NO_HEADER, LANGS},
-#define LIBBUILTIN(ID, TYPE, ATTRS, HEADER, LANGS)                             \
-  {#ID, TYPE, ATTRS, nullptr, HeaderDesc::HEADER, LANGS},
+static constexpr auto BuiltinStorage =
+    Builtin::Storage<Builtin::FirstTSBuiltin>::Make(
+        CLANG_BUILTIN_STR_TABLE("not a builtin function", "", "")
+#define BUILTIN CLANG_BUILTIN_STR_TABLE
 #include "clang/Basic/Builtins.inc"
-};
+            ,
+        {CLANG_BUILTIN_ENTRY("not a builtin function", "", "")
+#define BUILTIN CLANG_BUILTIN_ENTRY
+#define LANGBUILTIN CLANG_LANGBUILTIN_ENTRY
+#define LIBBUILTIN CLANG_LIBBUILTIN_ENTRY
+#include "clang/Basic/Builtins.inc"
+        });
 
-const Builtin::Info &Builtin::Context::getRecord(unsigned ID) const {
+std::pair<const char *, const Builtin::Info &>
+Builtin::Context::getStrTableAndInfo(unsigned ID) const {
   if (ID < Builtin::FirstTSBuiltin)
-    return BuiltinInfo[ID];
-  assert(((ID - Builtin::FirstTSBuiltin) <
-          (TSRecords.size() + AuxTSRecords.size())) &&
-         "Invalid builtin ID!");
+    return {BuiltinStorage.StringTable, BuiltinStorage.Infos[ID]};
+  assert(
+      ((ID - Builtin::FirstTSBuiltin) < (TSInfos.size() + AuxTSInfos.size())) &&
+      "Invalid builtin ID!");
   if (isAuxBuiltinID(ID))
-    return AuxTSRecords[getAuxBuiltinID(ID) - Builtin::FirstTSBuiltin];
-  return TSRecords[ID - Builtin::FirstTSBuiltin];
+    return {AuxTSStrTable,
+            AuxTSInfos[getAuxBuiltinID(ID) - Builtin::FirstTSBuiltin]};
+  return {TSStrTable, TSInfos[ID - Builtin::FirstTSBuiltin]};
+}
+
+static llvm::StringRef getStrFromTable(const char *StrTable, int Offset) {
+  return &StrTable[Offset];
+}
+
+/// Return the identifier name for the specified builtin,
+/// e.g. "__builtin_abs".
+llvm::StringRef Builtin::Context::getName(unsigned ID) const {
+  const auto &[StrTable, I] = getStrTableAndInfo(ID);
+  return getStrFromTable(StrTable, I.Offsets.Name);
+}
+
+const char *Builtin::Context::getTypeString(unsigned ID) const {
+  const auto &[StrTable, I] = getStrTableAndInfo(ID);
+  return getStrFromTable(StrTable, I.Offsets.Type).data();
+}
+
+const char *Builtin::Context::getAttributesString(unsigned ID) const {
+  const auto &[StrTable, I] = getStrTableAndInfo(ID);
+  return getStrFromTable(StrTable, I.Offsets.Attributes).data();
+}
+
+const char *Builtin::Context::getRequiredFeatures(unsigned ID) const {
+  const auto &[StrTable, I] = getStrTableAndInfo(ID);
+  return getStrFromTable(StrTable, I.Offsets.Features).data();
 }
 
 void Builtin::Context::InitializeTarget(const TargetInfo &Target,
                                         const TargetInfo *AuxTarget) {
-  assert(TSRecords.empty() && "Already initialized target?");
-  TSRecords = Target.getTargetBuiltins();
-  if (AuxTarget)
-    AuxTSRecords = AuxTarget->getTargetBuiltins();
+  assert(TSStrTable == nullptr && "Already initialized target?");
+  assert(TSInfos.empty() && "Already initialized target?");
+  std::tie(TSStrTable, TSInfos) = Target.getTargetBuiltinStorage();
+  if (AuxTarget) {
+    std::tie(AuxTSStrTable, AuxTSInfos) = AuxTarget->getTargetBuiltinStorage();
+  }
 }
 
 bool Builtin::Context::isBuiltinFunc(llvm::StringRef FuncName) {
   bool InStdNamespace = FuncName.consume_front("std-");
+  const char *StrTable = BuiltinStorage.StringTable;
   for (unsigned i = Builtin::NotBuiltin + 1; i != Builtin::FirstTSBuiltin;
        ++i) {
-    if (FuncName == BuiltinInfo[i].Name &&
-        (bool)strchr(BuiltinInfo[i].Attributes, 'z') == InStdNamespace)
-      return strchr(BuiltinInfo[i].Attributes, 'f') != nullptr;
+    const auto &I = BuiltinStorage.Infos[i];
+    if (FuncName == getStrFromTable(StrTable, I.Offsets.Name) &&
+        (bool)strchr(getStrFromTable(StrTable, I.Offsets.Attributes).data(),
+                     'z') == InStdNamespace)
+      return strchr(getStrFromTable(StrTable, I.Offsets.Attributes).data(),
+                    'f') != nullptr;
   }
 
   return false;
 }
 
 /// Is this builtin supported according to the given language options?
-static bool builtinIsSupported(const Builtin::Info &BuiltinInfo,
+static bool builtinIsSupported(const char *StrTable,
+                               const Builtin::Info &BuiltinInfo,
                                const LangOptions &LangOpts) {
+  auto AttributesStr =
+      getStrFromTable(StrTable, BuiltinInfo.Offsets.Attributes);
+
   /* Builtins Unsupported */
-  if (LangOpts.NoBuiltin && strchr(BuiltinInfo.Attributes, 'f') != nullptr)
+  if (LangOpts.NoBuiltin && strchr(AttributesStr.data(), 'f') != nullptr)
     return false;
   /* CorBuiltins Unsupported */
   if (!LangOpts.Coroutines && (BuiltinInfo.Langs & COR_LANG))
@@ -123,7 +162,7 @@ static bool builtinIsSupported(const Builtin::Info &BuiltinInfo,
   if (!LangOpts.CPlusPlus && BuiltinInfo.Langs == CXX_LANG)
     return false;
   /* consteval Unsupported */
-  if (!LangOpts.CPlusPlus20 && strchr(BuiltinInfo.Attributes, 'G') != nullptr)
+  if (!LangOpts.CPlusPlus20 && strchr(AttributesStr.data(), 'G') != nullptr)
     return false;
   return true;
 }
@@ -134,20 +173,23 @@ static bool builtinIsSupported(const Builtin::Info &BuiltinInfo,
 void Builtin::Context::initializeBuiltins(IdentifierTable &Table,
                                           const LangOptions& LangOpts) {
   // Step #1: mark all target-independent builtins with their ID's.
-  for (unsigned i = Builtin::NotBuiltin+1; i != Builtin::FirstTSBuiltin; ++i)
-    if (builtinIsSupported(BuiltinInfo[i], LangOpts)) {
-      Table.get(BuiltinInfo[i].Name).setBuiltinID(i);
+  for (const auto &&[Index, I] :
+       llvm::enumerate(llvm::ArrayRef(BuiltinStorage.Infos).drop_front()))
+    if (builtinIsSupported(BuiltinStorage.StringTable, I, LangOpts)) {
+      Table.get(getStrFromTable(BuiltinStorage.StringTable, I.Offsets.Name))
+          .setBuiltinID(Index + 1);
     }
 
   // Step #2: Register target-specific builtins.
-  for (unsigned i = 0, e = TSRecords.size(); i != e; ++i)
-    if (builtinIsSupported(TSRecords[i], LangOpts))
-      Table.get(TSRecords[i].Name).setBuiltinID(i + Builtin::FirstTSBuiltin);
+  for (const auto &&[Index, I] : llvm::enumerate(TSInfos))
+    if (builtinIsSupported(TSStrTable, I, LangOpts))
+      Table.get(getStrFromTable(TSStrTable, I.Offsets.Name))
+          .setBuiltinID(Index + Builtin::FirstTSBuiltin);
 
   // Step #3: Register target-specific builtins for AuxTarget.
-  for (unsigned i = 0, e = AuxTSRecords.size(); i != e; ++i)
-    Table.get(AuxTSRecords[i].Name)
-        .setBuiltinID(i + Builtin::FirstTSBuiltin + TSRecords.size());
+  for (const auto &&[Index, I] : llvm::enumerate(AuxTSInfos))
+    Table.get(getStrFromTable(AuxTSStrTable, I.Offsets.Name))
+        .setBuiltinID(Index + Builtin::FirstTSBuiltin + TSInfos.size());
 
   // Step #4: Unregister any builtins specified by -fno-builtin-foo.
   for (llvm::StringRef Name : LangOpts.NoBuiltinFuncs) {
@@ -164,7 +206,7 @@ void Builtin::Context::initializeBuiltins(IdentifierTable &Table,
 }
 
 unsigned Builtin::Context::getRequiredVectorWidth(unsigned ID) const {
-  const char *WidthPos = ::strchr(getRecord(ID).Attributes, 'V');
+  const char *WidthPos = ::strchr(getAttributesString(ID), 'V');
   if (!WidthPos)
     return 0;
 
@@ -187,7 +229,7 @@ bool Builtin::Context::isLike(unsigned ID, unsigned &FormatIdx,
   assert(::toupper(Fmt[0]) == Fmt[1] &&
          "Format string is not in the form \"xX\"");
 
-  const char *Like = ::strpbrk(getRecord(ID).Attributes, Fmt);
+  const char *Like = ::strpbrk(getAttributesString(ID), Fmt);
   if (!Like)
     return false;
 
@@ -214,7 +256,7 @@ bool Builtin::Context::isScanfLike(unsigned ID, unsigned &FormatIdx,
 
 bool Builtin::Context::performsCallback(unsigned ID,
                                         SmallVectorImpl<int> &Encoding) const {
-  const char *CalleePos = ::strchr(getRecord(ID).Attributes, 'C');
+  const char *CalleePos = ::strchr(getAttributesString(ID), 'C');
   if (!CalleePos)
     return false;
 
diff --git a/clang/lib/Basic/Targets/AArch64.cpp b/clang/lib/Basic/Targets/AArch64.cpp
index 53e102bbe44687..858f83d090d7ad 100644
--- a/clang/lib/Basic/Targets/AArch64.cpp
+++ b/clang/lib/Basic/Targets/AArch64.cpp
@@ -26,35 +26,39 @@
 using namespace clang;
 using namespace clang::targets;
 
-static constexpr Builtin::Info BuiltinInfo[] = {
-#define BUILTIN(ID, TYPE, ATTRS)                                               \
-  {#ID, TYPE, ATTRS, nullptr, HeaderDesc::NO_HEADER, ALL_LANGUAGES},
-#define TARGET_BUILTIN(ID, TYPE, ATTRS, FEATURE)                               \
-  {#ID, TYPE, ATTRS, FEATURE, HeaderDesc::NO_HEADER, ALL_LANGUAGES},
-#include "clang/Basic/BuiltinsNEON.def"
+static constexpr int NumBuiltins =
+    clang::AArch64::LastTSBuiltin - Builtin::FirstTSBuiltin;
 
-#define BUILTIN(ID, TYPE, ATTRS)                                               \
-  {#ID, TYPE, ATTRS, nullptr, HeaderDesc::NO_HEADER, ALL_LANGUAGES},
-#define TARGET_BUILTIN(ID, TYPE, ATTRS, FEATURE)                               \
-  {#ID, TYPE, ATTRS, FEATURE, HeaderDesc::NO_HEADER, ALL_LANGUAGES},
+static constexpr auto BuiltinStorage = Builtin::Storage<NumBuiltins>::Make(
+#define BUILTIN CLANG_BUILTIN_STR_TABLE
+#define TARGET_BUILTIN CLANG_TARGET_BUILTIN_STR_TABLE
+#include "clang/Basic/BuiltinsNEON.def"
+#define BUILTIN CLANG_BUILTIN_STR_TABLE
+#define TARGET_BUILTIN CLANG_TARGET_BUILTIN_STR_TABLE
 #include "clang/Basic/BuiltinsSVE.def"
-
-#define BUILTIN(ID, TYPE, ATTRS)                                               \
-  {#ID, TYPE, ATTRS, nullptr, HeaderDesc::NO_HEADER, ALL_LANGUAGES},
-#define TARGET_BUILTIN(ID, TYPE, ATTRS, FEATURE)                               \
-  {#ID, TYPE, ATTRS, FEATURE, HeaderDesc::NO_HEADER, ALL_LANGUAGES},
+#define BUILTIN CLANG_BUILTIN_STR_TABLE
+#define TARGET_BUILTIN CLANG_TARGET_BUILTIN_STR_TABLE
 #include "clang/Basic/BuiltinsSME.def"
-
-#define BUILTIN(ID, TYPE, ATTRS)                                               \
-  {#ID, TYPE, ATTRS, nullptr, HeaderDesc::NO_HEADER, ALL_LANGUAGES},
-#define LANGBUILTIN(ID, TYPE, ATTRS, LANG)                                     \
-  {#ID, TYPE, ATTRS, nullptr, HeaderDesc::NO_HEADER, LANG},
-#define TARGET_BUILTIN(ID, TYPE, ATTRS, FEATURE)                               \
-  {#ID, TYPE, ATTRS, FEATURE, HeaderDesc::NO_HEADER, ALL_LANGUAGES},
-#define TARGET_HEADER_BUILTIN(ID, TYPE, ATTRS, HEADER, LANGS, FEATURE)         \
-  {#ID, TYPE, ATTRS, FEATURE, HeaderDesc::HEADER, LANGS},
+#define BUILTIN CLANG_BUILTIN_STR_TABLE
+#define TARGET_BUILTIN CLANG_TARGET_BUILTIN_STR_TABLE
+#define TARGET_HEADER_BUILTIN CLANG_TARGET_HEADER_BUILTIN_STR_TABLE
 #include "clang/Basic/BuiltinsAArch64.def"
-};
+    , {
+#define BUILTIN CLANG_BUILTIN_ENTRY
+#define TARGET_BUILTIN CLANG_TARGET_BUILTIN_ENTRY
+#include "clang/Basic/BuiltinsNEON.def"
+#define BUILTIN CLANG_BUILTIN_ENTRY
+#define TARGET_BUILTIN CLANG_TARGET_BUILTIN_ENTRY
+#include "clang/Basic/BuiltinsSVE.def"
+#define BUILTIN CLANG_BUILTIN_ENTRY
+#define TARGET_BUILTIN CLANG_TARGET_BUILTIN_ENTRY
+#include "clang/Basic/BuiltinsSME.def"
+#define BUILTIN CLANG_BUILTIN_ENTRY
+#define TARGET_BUILTIN CLANG_TARGET_BUILTIN_ENTRY
+#define LANGBUILTIN CLANG_LANGBUILTIN_ENTRY
+#define TARGET_HEADER_BUILTIN CLANG_TARGET_HEADER_BUILTIN_ENTRY
+#include "clang/Basic/BuiltinsAArch64.def"
+      });
 
 void AArch64TargetInfo::setArchFeatures() {
   if (*ArchInfo == llvm::AArch64::ARMV8R) {
@@ -697,9 +701,9 @@ void AArch64TargetInfo::getTargetDefines(const LangOptions &Opts,
   }
 }
 
-ArrayRef<Builtin::Info> AArch64TargetInfo::getTargetBuiltins() const {
-  return llvm::ArrayRef(BuiltinInfo, clang::AArch64::LastTSBuiltin -
-                                         Builtin::FirstTSBuiltin);
+std::pair<const char *, ArrayRef<Builtin::Info>>
+AArch64TargetInfo::getTargetBuiltinStorage() const {
+  return {BuiltinStorage.StringTable, BuiltinStorage.Infos};
 }
 
 std::optional<std::pair<unsigned, unsigned>>
diff --git a/clang/lib/Basic/Targets/AArch64.h b/clang/lib/Basic/Targets/AArch64.h
index 68a8b1ebad8cde..a3ce04e249e30d 100644
--- a/clang/lib/Basic/Targets/AArch64.h
+++ b/clang/lib/Basic/Targets/AArch64.h
@@ -180,7 +180,8 @@ class LLVM_LIBRARY_VISIBILITY AArch64TargetInfo : public TargetInfo {
   void getTargetDefines(const LangOptions &Opts,
                         MacroBuilder &Builder) const override;
 
-  ArrayRef<Builtin::Info> getTargetBuiltins() const override;
+  std::pair<const char *, ArrayRef<Builtin::Info>>
+  getTargetBuiltinStorage() const override;
 
   std::optional<std::pair<unsigned, unsigned>>
   getVScaleRange(const LangOptions &LangOpts) const override;
diff --git a/clang/lib/Basic/Targets/AMDGPU.cpp b/clang/lib/Basic/Targets/AMDGPU.cpp
index 99f8f2944e2796..21281e7201b020 100644
--- a/clang/lib/Basic/Targets/AMDGPU.cpp
+++ b/clang/lib/Basic/Targets/AMDGPU.cpp
@@ -88,13 +88,18 @@ const LangASMap AMDGPUTargetInfo::AMDGPUDefIsPrivMap = {
 } // namespace targets
 } // namespace clang
 
-static constexpr Builtin::Info BuiltinInfo[] = {
-#define BUILTIN(ID, TYPE, ATTRS)                                               \
-  {#ID, TYPE, ATTRS, nullptr, HeaderDesc::NO_HEADER, ALL_LANGUAGES},
-#define TARGET_BUILTIN(ID, TYPE, ATTRS, FEATURE)                               \
-  {#ID, TYPE, ATTRS, FEATURE, HeaderDesc::NO_HEADER, ALL_LANGUAGES},
+static constexpr int NumBuiltins =
+    clang::AMDGPU::LastTSBuiltin - Builtin::FirstTSBuiltin;
+
+static constexpr auto BuiltinStorage = Builtin::Storage<NumBuiltins>::Make(
+#define BUILTIN CLANG_BUILTIN_STR_TABLE
+#define TARGET_BUILTIN CLANG_TARGET_BUILTIN_STR_TABLE
 #include "clang/Basic/BuiltinsAMDGPU.def"
-};
+    , {
+#define BUILTIN CLANG_BUILTIN_ENTRY
+#define TARGET_BUILTIN CLANG_TARGET_BUILTIN_ENTRY
+#include "clang/Basic/BuiltinsAMDGPU.def"
+      });
 
 const char *const AMDGPUTargetInfo::GCCRegNames[] = {
   "v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7", "v8",
@@ -266,9 +271,9 @@ void AMDGPUTargetInfo::adjust(DiagnosticsEngine &Diags, LangOptions &Opts) {
                      !isAMDGCN(getTriple()));
 }
 
-ArrayRef<Builtin::Info> AMDGPUTargetInfo::getTargetBuiltins() const {
-  return llvm::ArrayRef(BuiltinInfo,
-                        clang::AMDGPU::LastTSBuiltin - Builtin::FirstTSBuiltin);
+std::pair<const char *, ArrayRef<Builtin::Info>>
+AMDGPUTargetInfo::getTargetBuiltinStorage() const {
+  return {BuiltinStorage.StringTable, BuiltinStorage.Infos};
 }
 
 void AMDGPUTargetInfo::getTargetDefines(const LangOptions &Opts,
diff --git a/clang/lib/Basic/Targets/AMDGPU.h b/clang/lib/Basic/Targets/AMDGPU.h
index ea4189cdea47da..8068184a0d4117 100644
--- a/clang/lib/Basic/Targets/AMDGPU.h
+++ b/clang/lib/Basic/Targets/AMDGPU.h
@@ -257,7 +257,8 @@ class LLVM_LIBRARY_VISIBILITY AMDGPUTargetInfo final : public TargetInfo {
                  StringRef CPU,
                  const std::vector<std::string> &FeatureVec) const override;
 
-  ArrayRef<Builtin::Info> getTargetBuiltins() const override;
+  std::pair<const char *, ArrayRef<Builtin::Info>>
+  getTargetBuiltinStorage() const override;
 
   bool useFP16ConversionIntrinsics() const override { return false; }
 
diff --git a/clang/lib/Basic/Targets/ARC.h b/clang/lib/Basic/Targets/ARC.h
index 7f3d0aa15ab81f..d84daf2e527ca0 100644
--- a/clang/lib/Basic/Targets/ARC.h
+++ b/clang/lib/Basic/Targets/ARC.h
@@ -40,7 +40,10 @@ class LLVM_LIBRARY_VISIBILITY ARCTargetInfo : public TargetInfo {
   void getTargetDefines(const LangOptions &Opts,
                         MacroBuilder &Builder) const override;
 
-  ArrayRef<Builtin::Info> getTargetBuiltins() const override { return {}; }
+  std::pair<const char *, ArrayRef<Builtin::Info>>
+  getTargetBuiltinStorage() const override {
+    return {nullptr, {}};
+  }
 
   BuiltinVaListKind getBuiltinVaListKind() const override {
     return TargetInfo::VoidPtrBuiltinVaList;
diff --git a/clang/lib/Basic/Targets/ARM.cpp b/clang/lib/Basic/Targets/ARM.cpp
index 370444057b4298..fb10bc8249e981 100644
--- a/clang/lib/Basic/Targets/ARM.cpp
+++ b/clang/lib/Basic/Targets/ARM.cpp
@@ -1071,31 +1071,34 @@ void ARMTargetInfo::getTargetDefines(const LangOptions &Opts,
   }
 }
 
-static constexpr Builtin::Info BuiltinInfo[] = {
-#define BUILTIN(ID, TYPE, ATTRS)                                               \
-  {#ID, TYPE, ATTRS, nullptr, HeaderDesc::NO_HEADER, ALL_LANGUAGES},
-#define LIBBUILTIN(ID, TYPE, ATTRS, HEADER)                                    \
-  {#ID, TYPE, ATTRS, nullptr, HeaderDesc::HEADER, ALL_LANGUAGES},
-#define TARGET_BUILTIN(ID, TYPE, ATTRS, FEATURE)                               \
-  {#ID, TYPE, ATTRS, FEATURE, HeaderDesc::NO_HEADER, ALL_LANGUAGES},
+static constexpr int NumBuiltins =
+    clang::ARM::LastTSBuiltin - Builtin::FirstTSBuiltin;
+
+static constexpr auto BuiltinStorage = Builtin::Storage<NumBuiltins>::Make(
+#define BUILTIN CLANG_BUILTIN_STR_TABLE
+#define TARGET_BUILTIN CLANG_TARGET_BUILTIN_STR_TABLE
 #include "clang/Basic/BuiltinsNEON.def"
 
-#define BUILTIN(ID, TYPE, ATTRS)                                               \
-  {#ID, TYPE, ATTRS, nullptr, HeaderDesc::NO_HEADER, ALL_LANGUAGES},
-#define LANGBUILTIN(ID, TYPE, ATTRS, LANG)                                     \
-  {#ID, TYPE, ATTRS, nullptr, HeaderDesc::NO_HEADER, LANG},
-#define LIBBUILTIN(ID, TYPE, ATTRS, HEADER)                                    \
-  {#ID, TYPE, ATTRS, nullptr, HeaderDesc::HEADER, ALL_LANGUAGES},
-#define TARGET_BUILTIN(ID, TYPE, ATTRS, FEATURE)                               \
-  {#ID, TYPE, ATTRS, FEATURE, HeaderDesc::NO_HEADER, ALL_LANGUAGES},
-#define TARGET_HEADER_BUILTIN(ID, TYPE, ATTRS, HEADER, LANGS, FEATURE)         \
-  {#ID, TYPE, ATTRS, FEATURE, HeaderDesc::HEADER, LANGS},
+#define BUILTIN CLANG_BUILTIN_STR_TABLE
+#define TARGET_BUILTIN CLANG_TARGET_BUILTIN_STR_TABLE
+#define TARGET_HEADER_BUILTIN CLANG_TARGET_HEADER_BUILTIN_STR_TABLE
 #include "clang/Basic/BuiltinsARM.def"
-};
+    , {
+#define BUILTIN CLANG_BUILTIN_ENTRY
+#define LIBBUILTIN CLANG_LIBBUILTIN_ENTRY
+#define TARGET_BUILTIN CLANG_TARGET_BUILTIN_ENTRY
+#include "clang/Basic/BuiltinsNEON.def"
+#define BUILTIN CLANG_BUILTIN_ENTRY
+#define LANGBUILTIN CLANG_LANGBUILTIN_ENTRY
+#define LIBBUILTIN CLANG_LIBBUILTIN_ENTRY
+#define TARGET_BUILTIN CLANG_TARGET_BUILTIN_ENTRY
+#define TARGET_HEADER_BUILTIN CLANG_TARGET_HEADER_BUILTIN_ENTRY
+#include "clang/Basic/BuiltinsARM.def"
+      });
 
-ArrayRef<Builtin::Info> ARMTargetInfo::getTargetBuiltins() const {
-  return llvm::ArrayRef(BuiltinInfo,
-                        clang::ARM::LastTSBuiltin - Builtin::FirstTSBuiltin);
+std::pair<const char *, ArrayRef<Builtin::Info>>
+ARMTargetInfo::getTargetBuiltinStorage() const {
+  return {BuiltinStorage.StringTable, BuiltinStorage.Infos};
 }
 
 bool ARMTargetInfo::isCLZForZeroUndef() const { return false; }
diff --git a/clang/lib/Basic/Targets/ARM.h b/clang/lib/Basic/Targets/ARM.h
index 55ecb99d82d8fb..71f44f7248f68b 100644
--- a/clang/lib/Basic/Targets/ARM.h
+++ b/clang/lib/Basic/Targets/ARM.h
@@ -196,7 +196,8 @@ class LLVM_LIBRARY_VISIBILITY ARMTargetInfo : public TargetInfo {
   void getTargetDefines(const LangOptions &Opts,
                         MacroBuilder &Builder) const override;
 
-  ArrayRef<Builtin::Info> getTargetBuiltins() const override;
+  std::pair<const char *, ArrayRef<Builtin::Info>>
+  getTargetBuiltinStorage() const override;
 
   bool isCLZForZeroUndef() const override;
   BuiltinVaListKind getBuiltinVaListKind() const override;
diff --git a/clang/lib/Basic/Targets/AVR.h b/clang/lib/Basic/Targets/AVR.h
index df1f8d171efbaa..f19dee3a88231c 100644
--- a/clang/lib/Basic/Targets/AVR.h
+++ b/clang/lib/Basic/Targets/AVR.h
@@ -63,7 +63,10 @@ class LLVM_LIBRARY_VISIBILITY AVRTargetInfo : public TargetInfo {
   void getTargetDefines(const LangOptions &Opts,
                         MacroBuilder &Builder) const override;
 
-  ArrayRef<Builtin::Info> getTargetBuiltins() const override { return {}; }
+  std::pair<const char *, ArrayRef<Builtin::Info>>
+  getTargetBuiltinStorage() const override {
+    return {nullptr, {}};
+  }
 
   bool allowsLargerPreferedTypeAlignment() const override { return false; }
 
diff --git a/clang/lib/Basic/Targets/BPF.cpp b/clang/lib/Basic/Targets/BPF.cpp
index f4684765b7ffb3..b62e792590185a 100644
--- a/clang/lib/Basic/Targets/BPF.cpp
+++ b/clang/lib/Basic/Targets/BPF.cpp
@@ -19,11 +19,16 @@
 using namespace clang;
 using namespace clang::targets;
 
-static constexpr Builtin::Info BuiltinInfo[] = {
-#define BUILTIN(ID, TYPE, ATTRS)                                               \
-  {#ID, TYPE, ATTRS, nullptr, HeaderDesc::NO_HEADER, ALL_LANGUAGES},
+static constexpr int NumBuiltins =
+    clang::BPF::LastTSBuiltin - Builtin::FirstTSBuiltin;
+
+static constexpr auto BuiltinStorage = Builtin::Storage<NumBuiltins>::Make(
+#define BUILTIN CLANG_BUILTIN_STR_TABLE
+#include "clang/Basic/BuiltinsBPF.inc"
+    , {
+#define BUILTIN CLANG_BUILTIN_ENTRY
 #include "clang/Basic/BuiltinsBPF.inc"
-};
+      });
 
 void BPFTargetInfo::getTargetDefines(const LangOptions &Opts,
                                      MacroBuilder &Builder) const {
@@ -81,9 +86,9 @@ void BPFTargetInfo::fillValidCPUList(SmallVectorImpl<StringRef> &Values) const {
   Values.append(std::begin(ValidCPUNames), std::end(ValidCPUNames));
 }
 
-ArrayRef<Builtin::Info> BPFTargetInfo::getTargetBuiltins() const {
-  return llvm::ArrayRef(BuiltinInfo,
-                        clang::BPF::LastTSBuiltin - Builtin::FirstTSBuiltin);
+std::pair<const char *, ArrayRef<Builtin::Info>>
+BPFTargetInfo::getTargetBuiltinStorage() const {
+  return {BuiltinStorage.StringTable, BuiltinStorage.Infos};
 }
 
 bool BPFTargetInfo::handleTargetFeatures(std::vector<std::string> &Features,
diff --git a/clang/lib/Basic/Targets/BPF.h b/clang/lib/Basic/Targets/BPF.h
index 27a4b5f3149702..8f5c0e31aa87cc 100644
--- a/clang/lib/Basic/Targets/BPF.h
+++ b/clang/lib/Basic/Targets/BPF.h
@@ -58,7 +58,8 @@ class LLVM_LIBRARY_VISIBILITY BPFTargetInfo : public TargetInfo {
   bool handleTargetFeatures(std::vector<std::string> &Features,
                             DiagnosticsEngine &Diags) override;
 
-  ArrayRef<Builtin::Info> getTargetBuiltins() const override;
+  std::pair<const char *, ArrayRef<Builtin::Info>>
+  getTargetBuiltinStorage() const override;
 
   std::string_view getClobbers() const override { return ""; }
 
diff --git a/clang/lib/Basic/Targets/CSKY.cpp b/clang/lib/Basic/Targets/CSKY.cpp
index c8bf8b9234d243..e698508a2370c9 100644
--- a/clang/lib/Basic/Targets/CSKY.cpp
+++ b/clang/lib/Basic/Targets/CSKY.cpp
@@ -139,10 +139,6 @@ bool CSKYTargetInfo::handleTargetFeatures(std::vector<std::string> &Features,
   return true;
 }
 
-ArrayRef<Builtin::Info> CSKYTargetInfo::getTargetBuiltins() const {
-  return ArrayRef<Builtin::Info>();
-}
-
 ArrayRef<const char *> CSKYTargetInfo::getGCCRegNames() const {
   static const char *const GCCRegNames[] = {
       // Integer registers
diff --git a/clang/lib/Basic/Targets/CSKY.h b/clang/lib/Basic/Targets/CSKY.h
index 94d4eeb9a1fff4..59c83340b8c311 100644
--- a/clang/lib/Basic/Targets/CSKY.h
+++ b/clang/lib/Basic/Targets/CSKY.h
@@ -73,7 +73,10 @@ class LLVM_LIBRARY_VISIBILITY CSKYTargetInfo : public TargetInfo {
 
   unsigned getMinGlobalAlign(uint64_t, bool HasNonWeakDef) const override;
 
-  ArrayRef<Builtin::Info> getTargetBuiltins() const override;
+  std::pair<const char *, ArrayRef<Builtin::Info>>
+  getTargetBuiltinStorage() const override {
+    return {nullptr, {}};
+  }
 
   BuiltinVaListKind getBuiltinVaListKind() const override {
     return VoidPtrBuiltinVaList;
diff --git a/clang/lib/Basic/Targets/DirectX.h b/clang/lib/Basic/Targets/DirectX.h
index ab22d1281a4df7..3e6e84b0d9e6fe 100644
--- a/clang/lib/Basic/Targets/DirectX.h
+++ b/clang/lib/Basic/Targets/DirectX.h
@@ -72,7 +72,10 @@ class LLVM_LIBRARY_VISIBILITY DirectXTargetInfo : public TargetInfo {
     return Feature == "directx";
   }
 
-  ArrayRef<Builtin::Info> getTargetBuiltins() const override { return {}; }
+  std::pair<const char *, ArrayRef<Builtin::Info>>
+  getTargetBuiltinStorage() const override {
+    return {nullptr, {}};
+  }
 
   std::string_view getClobbers() const override { return ""; }
 
diff --git a/clang/lib/Basic/Targets/Hexagon.cpp b/clang/lib/Basic/Targets/Hexagon.cpp
index 0282ac812c306f..70059d68c562bd 100644
--- a/clang/lib/Basic/Targets/Hexagon.cpp
+++ b/clang/lib/Basic/Targets/Hexagon.cpp
@@ -198,15 +198,19 @@ ArrayRef<TargetInfo::GCCRegAlias> HexagonTargetInfo::getGCCRegAliases() const {
   return llvm::ArrayRef(GCCRegAliases);
 }
 
-static constexpr Builtin::Info BuiltinInfo[] = {
-#define BUILTIN(ID, TYPE, ATTRS)                                               \
-  {#ID, TYPE, ATTRS, nullptr, HeaderDesc::NO_HEADER, ALL_LANGUAGES},
-#define LIBBUILTIN(ID, TYPE, ATTRS, HEADER)                                    \
-  {#ID, TYPE, ATTRS, nullptr, HEADER, ALL_LANGUAGES},
-#define TARGET_BUILTIN(ID, TYPE, ATTRS, FEATURE)                               \
-  {#ID, TYPE, ATTRS, FEATURE, HeaderDesc::NO_HEADER, ALL_LANGUAGES},
+static constexpr int NumBuiltins =
+    clang::Hexagon::LastTSBuiltin - Builtin::FirstTSBuiltin;
+
+static constexpr auto BuiltinStorage = Builtin::Storage<NumBuiltins>::Make(
+#define BUILTIN CLANG_BUILTIN_STR_TABLE
+#define TARGET_BUILTIN CLANG_TARGET_BUILTIN_STR_TABLE
 #include "clang/Basic/BuiltinsHexagon.def"
-};
+    , {
+#define BUILTIN CLANG_BUILTIN_ENTRY
+#define LIBBUILTIN CLANG_LIBBUILTIN_ENTRY
+#define TARGET_BUILTIN CLANG_TARGET_BUILTIN_ENTRY
+#include "clang/Basic/BuiltinsHexagon.def"
+      });
 
 bool HexagonTargetInfo::hasFeature(StringRef Feature) const {
   std::string VS = "hvxv" + HVXVersion;
@@ -264,7 +268,7 @@ void HexagonTargetInfo::fillValidCPUList(
     Values.push_back(Suffix.Name);
 }
 
-ArrayRef<Builtin::Info> HexagonTargetInfo::getTargetBuiltins() const {
-  return llvm::ArrayRef(BuiltinInfo, clang::Hexagon::LastTSBuiltin -
-                                         Builtin::FirstTSBuiltin);
+std::pair<const char *, ArrayRef<Builtin::Info>>
+HexagonTargetInfo::getTargetBuiltinStorage() const {
+  return {BuiltinStorage.StringTable, BuiltinStorage.Infos};
 }
diff --git a/clang/lib/Basic/Targets/Hexagon.h b/clang/lib/Basic/Targets/Hexagon.h
index 7f053ab7e48886..2230735b8971b1 100644
--- a/clang/lib/Basic/Targets/Hexagon.h
+++ b/clang/lib/Basic/Targets/Hexagon.h
@@ -66,7 +66,8 @@ class LLVM_LIBRARY_VISIBILITY HexagonTargetInfo : public TargetInfo {
     BoolWidth = BoolAlign = 8;
   }
 
-  ArrayRef<Builtin::Info> getTargetBuiltins() const override;
+  std::pair<const char *, ArrayRef<Builtin::Info>>
+  getTargetBuiltinStorage() const override;
 
   bool validateAsmConstraint(const char *&Name,
                              TargetInfo::ConstraintInfo &Info) const override {
diff --git a/clang/lib/Basic/Targets/Lanai.h b/clang/lib/Basic/Targets/Lanai.h
index f7e439c7c9e1cf..f37b0fdb087318 100644
--- a/clang/lib/Basic/Targets/Lanai.h
+++ b/clang/lib/Basic/Targets/Lanai.h
@@ -78,7 +78,10 @@ class LLVM_LIBRARY_VISIBILITY LanaiTargetInfo : public TargetInfo {
     return TargetInfo::VoidPtrBuiltinVaList;
   }
 
-  ArrayRef<Builtin::Info> getTargetBuiltins() const override { return {}; }
+  std::pair<const char *, ArrayRef<Builtin::Info>>
+  getTargetBuiltinStorage() const override {
+    return {nullptr, {}};
+  }
 
   bool validateAsmConstraint(const char *&Name,
                              TargetInfo::ConstraintInfo &info) const override {
diff --git a/clang/lib/Basic/Targets/LoongArch.cpp b/clang/lib/Basic/Targets/LoongArch.cpp
index d36186aa9c2fbf..7c714000af42f1 100644
--- a/clang/lib/Basic/Targets/LoongArch.cpp
+++ b/clang/lib/Basic/Targets/LoongArch.cpp
@@ -270,13 +270,18 @@ void LoongArchTargetInfo::getTargetDefines(const LangOptions &Opts,
     Builder.defineMacro("__GCC_HAVE_SYNC_COMPARE_AND_SWAP_8");
 }
 
-static constexpr Builtin::Info BuiltinInfo[] = {
-#define BUILTIN(ID, TYPE, ATTRS)                                               \
-  {#ID, TYPE, ATTRS, nullptr, HeaderDesc::NO_HEADER, ALL_LANGUAGES},
-#define TARGET_BUILTIN(ID, TYPE, ATTRS, FEATURE)                               \
-  {#ID, TYPE, ATTRS, FEATURE, HeaderDesc::NO_HEADER, ALL_LANGUAGES},
+static constexpr int NumBuiltins =
+    clang::LoongArch::LastTSBuiltin - Builtin::FirstTSBuiltin;
+
+static constexpr auto BuiltinStorage = Builtin::Storage<NumBuiltins>::Make(
+#define BUILTIN CLANG_BUILTIN_STR_TABLE
+#define TARGET_BUILTIN CLANG_TARGET_BUILTIN_STR_TABLE
+#include "clang/Basic/BuiltinsLoongArch.def"
+    , {
+#define BUILTIN CLANG_BUILTIN_ENTRY
+#define TARGET_BUILTIN CLANG_TARGET_BUILTIN_ENTRY
 #include "clang/Basic/BuiltinsLoongArch.def"
-};
+      });
 
 bool LoongArchTargetInfo::initFeatureMap(
     llvm::StringMap<bool> &Features, DiagnosticsEngine &Diags, StringRef CPU,
@@ -303,9 +308,9 @@ bool LoongArchTargetInfo::hasFeature(StringRef Feature) const {
       .Default(false);
 }
 
-ArrayRef<Builtin::Info> LoongArchTargetInfo::getTargetBuiltins() const {
-  return llvm::ArrayRef(BuiltinInfo, clang::LoongArch::LastTSBuiltin -
-                                         Builtin::FirstTSBuiltin);
+std::pair<const char *, ArrayRef<Builtin::Info>>
+LoongArchTargetInfo::getTargetBuiltinStorage() const {
+  return {BuiltinStorage.StringTable, BuiltinStorage.Infos};
 }
 
 bool LoongArchTargetInfo::handleTargetFeatures(
diff --git a/clang/lib/Basic/Targets/LoongArch.h b/clang/lib/Basic/Targets/LoongArch.h
index abaa05aa42d438..1bb82667cb512e 100644
--- a/clang/lib/Basic/Targets/LoongArch.h
+++ b/clang/lib/Basic/Targets/LoongArch.h
@@ -70,7 +70,8 @@ class LLVM_LIBRARY_VISIBILITY LoongArchTargetInfo : public TargetInfo {
   void getTargetDefines(const LangOptions &Opts,
                         MacroBuilder &Builder) const override;
 
-  ArrayRef<Builtin::Info> getTargetBuiltins() const override;
+  std::pair<const char *, ArrayRef<Builtin::Info>>
+  getTargetBuiltinStorage() const override;
 
   BuiltinVaListKind getBuiltinVaListKind() const override {
     return TargetInfo::VoidPtrBuiltinVaList;
diff --git a/clang/lib/Basic/Targets/M68k.cpp b/clang/lib/Basic/Targets/M68k.cpp
index b5b29fd8675630..5670c6309e7171 100644
--- a/clang/lib/Basic/Targets/M68k.cpp
+++ b/clang/lib/Basic/Targets/M68k.cpp
@@ -115,9 +115,10 @@ void M68kTargetInfo::getTargetDefines(const LangOptions &Opts,
     Builder.defineMacro("__HAVE_68881__");
 }
 
-ArrayRef<Builtin::Info> M68kTargetInfo::getTargetBuiltins() const {
+std::pair<const char *, ArrayRef<Builtin::Info>>
+M68kTargetInfo::getTargetBuiltinStorage() const {
   // FIXME: Implement.
-  return {};
+  return {nullptr, {}};
 }
 
 bool M68kTargetInfo::hasFeature(StringRef Feature) const {
diff --git a/clang/lib/Basic/Targets/M68k.h b/clang/lib/Basic/Targets/M68k.h
index b732add77e0340..c68b2ab132ea0e 100644
--- a/clang/lib/Basic/Targets/M68k.h
+++ b/clang/lib/Basic/Targets/M68k.h
@@ -44,7 +44,8 @@ class LLVM_LIBRARY_VISIBILITY M68kTargetInfo : public TargetInfo {
 
   void getTargetDefines(const LangOptions &Opts,
                         MacroBuilder &Builder) const override;
-  ArrayRef<Builtin::Info> getTargetBuiltins() const override;
+  std::pair<const char *, ArrayRef<Builtin::Info>>
+  getTargetBuiltinStorage() const override;
   bool hasFeature(StringRef Feature) const override;
   ArrayRef<const char *> getGCCRegNames() const override;
   ArrayRef<TargetInfo::GCCRegAlias> getGCCRegAliases() const override;
diff --git a/clang/lib/Basic/Targets/MSP430.h b/clang/lib/Basic/Targets/MSP430.h
index 2266ada25c1dd6..462bcdfaa9b214 100644
--- a/clang/lib/Basic/Targets/MSP430.h
+++ b/clang/lib/Basic/Targets/MSP430.h
@@ -50,9 +50,10 @@ class LLVM_LIBRARY_VISIBILITY MSP430TargetInfo : public TargetInfo {
   void getTargetDefines(const LangOptions &Opts,
                         MacroBuilder &Builder) const override;
 
-  ArrayRef<Builtin::Info> getTargetBuiltins() const override {
+  std::pair<const char *, ArrayRef<Builtin::Info>>
+  getTargetBuiltinStorage() const override {
     // FIXME: Implement.
-    return {};
+    return {nullptr, {}};
   }
 
   bool allowsLargerPreferedTypeAlignment() const override { return false; }
diff --git a/clang/lib/Basic/Targets/Mips.cpp b/clang/lib/Basic/Targets/Mips.cpp
index 174bc9d2ab9967..b4f137b2c19503 100644
--- a/clang/lib/Basic/Targets/Mips.cpp
+++ b/clang/lib/Basic/Targets/Mips.cpp
@@ -20,13 +20,17 @@
 using namespace clang;
 using namespace clang::targets;
 
-static constexpr Builtin::Info BuiltinInfo[] = {
-#define BUILTIN(ID, TYPE, ATTRS)                                               \
-  {#ID, TYPE, ATTRS, nullptr, HeaderDesc::NO_HEADER, ALL_LANGUAGES},
-#define LIBBUILTIN(ID, TYPE, ATTRS, HEADER)                                    \
-  {#ID, TYPE, ATTRS, nullptr, HeaderDesc::HEADER, ALL_LANGUAGES},
+static constexpr int NumBuiltins =
+    clang::Mips::LastTSBuiltin - Builtin::FirstTSBuiltin;
+
+static constexpr auto BuiltinStorage = Builtin::Storage<NumBuiltins>::Make(
+#define BUILTIN CLANG_BUILTIN_STR_TABLE
+#include "clang/Basic/BuiltinsMips.def"
+    , {
+#define BUILTIN CLANG_BUILTIN_ENTRY
+#define LIBBUILTIN CLANG_LIBBUILTIN_ENTRY
 #include "clang/Basic/BuiltinsMips.def"
-};
+      });
 
 bool MipsTargetInfo::processorSupportsGPR64() const {
   return llvm::StringSwitch<bool>(CPU)
@@ -223,9 +227,9 @@ bool MipsTargetInfo::hasFeature(StringRef Feature) const {
       .Default(false);
 }
 
-ArrayRef<Builtin::Info> MipsTargetInfo::getTargetBuiltins() const {
-  return llvm::ArrayRef(BuiltinInfo,
-                        clang::Mips::LastTSBuiltin - Builtin::FirstTSBuiltin);
+std::pair<const char *, ArrayRef<Builtin::Info>>
+MipsTargetInfo::getTargetBuiltinStorage() const {
+  return {BuiltinStorage.StringTable, BuiltinStorage.Infos};
 }
 
 unsigned MipsTargetInfo::getUnwindWordWidth() const {
diff --git a/clang/lib/Basic/Targets/Mips.h b/clang/lib/Basic/Targets/Mips.h
index 8acaf56523b218..2749b5d43a45df 100644
--- a/clang/lib/Basic/Targets/Mips.h
+++ b/clang/lib/Basic/Targets/Mips.h
@@ -197,7 +197,8 @@ class LLVM_LIBRARY_VISIBILITY MipsTargetInfo : public TargetInfo {
   void getTargetDefines(const LangOptions &Opts,
                         MacroBuilder &Builder) const override;
 
-  ArrayRef<Builtin::Info> getTargetBuiltins() const override;
+  std::pair<const char *, ArrayRef<Builtin::Info>>
+  getTargetBuiltinStorage() const override;
 
   bool hasFeature(StringRef Feature) const override;
 
diff --git a/clang/lib/Basic/Targets/NVPTX.cpp b/clang/lib/Basic/Targets/NVPTX.cpp
index dbc3fec3657610..1d490d9f12992d 100644
--- a/clang/lib/Basic/Targets/NVPTX.cpp
+++ b/clang/lib/Basic/Targets/NVPTX.cpp
@@ -20,15 +20,19 @@
 using namespace clang;
 using namespace clang::targets;
 
-static constexpr Builtin::Info BuiltinInfo[] = {
-#define BUILTIN(ID, TYPE, ATTRS)                                               \
-  {#ID, TYPE, ATTRS, nullptr, HeaderDesc::NO_HEADER, ALL_LANGUAGES},
-#define LIBBUILTIN(ID, TYPE, ATTRS, HEADER)                                    \
-  {#ID, TYPE, ATTRS, nullptr, HeaderDesc::HEADER, ALL_LANGUAGES},
-#define TARGET_BUILTIN(ID, TYPE, ATTRS, FEATURE)                               \
-  {#ID, TYPE, ATTRS, FEATURE, HeaderDesc::NO_HEADER, ALL_LANGUAGES},
+static constexpr int NumBuiltins =
+    clang::NVPTX::LastTSBuiltin - Builtin::FirstTSBuiltin;
+
+static constexpr auto BuiltinStorage = Builtin::Storage<NumBuiltins>::Make(
+#define BUILTIN CLANG_BUILTIN_STR_TABLE
+#define TARGET_BUILTIN CLANG_TARGET_BUILTIN_STR_TABLE
+#include "clang/Basic/BuiltinsNVPTX.def"
+    , {
+#define BUILTIN CLANG_BUILTIN_ENTRY
+#define LIBBUILTIN CLANG_LIBBUILTIN_ENTRY
+#define TARGET_BUILTIN CLANG_TARGET_BUILTIN_ENTRY
 #include "clang/Basic/BuiltinsNVPTX.def"
-};
+      });
 
 const char *const NVPTXTargetInfo::GCCRegNames[] = {"r0"};
 
@@ -295,7 +299,7 @@ void NVPTXTargetInfo::getTargetDefines(const LangOptions &Opts,
   }
 }
 
-ArrayRef<Builtin::Info> NVPTXTargetInfo::getTargetBuiltins() const {
-  return llvm::ArrayRef(BuiltinInfo,
-                        clang::NVPTX::LastTSBuiltin - Builtin::FirstTSBuiltin);
+std::pair<const char *, ArrayRef<Builtin::Info>>
+NVPTXTargetInfo::getTargetBuiltinStorage() const {
+  return {BuiltinStorage.StringTable, BuiltinStorage.Infos};
 }
diff --git a/clang/lib/Basic/Targets/NVPTX.h b/clang/lib/Basic/Targets/NVPTX.h
index d81b89a7f24ac0..6520f441b41674 100644
--- a/clang/lib/Basic/Targets/NVPTX.h
+++ b/clang/lib/Basic/Targets/NVPTX.h
@@ -74,7 +74,8 @@ class LLVM_LIBRARY_VISIBILITY NVPTXTargetInfo : public TargetInfo {
   void getTargetDefines(const LangOptions &Opts,
                         MacroBuilder &Builder) const override;
 
-  ArrayRef<Builtin::Info> getTargetBuiltins() const override;
+  std::pair<const char *, ArrayRef<Builtin::Info>>
+  getTargetBuiltinStorage() const override;
 
   bool useFP16ConversionIntrinsics() const override { return false; }
 
diff --git a/clang/lib/Basic/Targets/PNaCl.h b/clang/lib/Basic/Targets/PNaCl.h
index 7e0e10aa362d87..20c0892fbf8c8c 100644
--- a/clang/lib/Basic/Targets/PNaCl.h
+++ b/clang/lib/Basic/Targets/PNaCl.h
@@ -52,7 +52,10 @@ class LLVM_LIBRARY_VISIBILITY PNaClTargetInfo : public TargetInfo {
     return Feature == "pnacl";
   }
 
-  ArrayRef<Builtin::Info> getTargetBuiltins() const override { return {}; }
+  std::pair<const char *, ArrayRef<Builtin::Info>>
+  getTargetBuiltinStorage() const override {
+    return {nullptr, {}};
+  }
 
   BuiltinVaListKind getBuiltinVaListKind() const override {
     return TargetInfo::PNaClABIBuiltinVaList;
diff --git a/clang/lib/Basic/Targets/PPC.cpp b/clang/lib/Basic/Targets/PPC.cpp
index 1448069173b5f4..6aa36839afa813 100644
--- a/clang/lib/Basic/Targets/PPC.cpp
+++ b/clang/lib/Basic/Targets/PPC.cpp
@@ -19,15 +19,19 @@
 using namespace clang;
 using namespace clang::targets;
 
-static constexpr Builtin::Info BuiltinInfo[] = {
-#define BUILTIN(ID, TYPE, ATTRS)                                               \
-  {#ID, TYPE, ATTRS, nullptr, HeaderDesc::NO_HEADER, ALL_LANGUAGES},
-#define TARGET_BUILTIN(ID, TYPE, ATTRS, FEATURE)                               \
-  {#ID, TYPE, ATTRS, FEATURE, HeaderDesc::NO_HEADER, ALL_LANGUAGES},
-#define LIBBUILTIN(ID, TYPE, ATTRS, HEADER)                                    \
-  {#ID, TYPE, ATTRS, nullptr, HeaderDesc::HEADER, ALL_LANGUAGES},
+static constexpr int NumBuiltins =
+    clang::PPC::LastTSBuiltin - Builtin::FirstTSBuiltin;
+
+static constexpr auto BuiltinStorage = Builtin::Storage<NumBuiltins>::Make(
+#define BUILTIN CLANG_BUILTIN_STR_TABLE
+#define TARGET_BUILTIN CLANG_TARGET_BUILTIN_STR_TABLE
 #include "clang/Basic/BuiltinsPPC.def"
-};
+    , {
+#define BUILTIN CLANG_BUILTIN_ENTRY
+#define TARGET_BUILTIN CLANG_TARGET_BUILTIN_ENTRY
+#define LIBBUILTIN CLANG_LIBBUILTIN_ENTRY
+#include "clang/Basic/BuiltinsPPC.def"
+      });
 
 /// handleTargetFeatures - Perform initialization based on the user
 /// configured set of features.
@@ -927,9 +931,9 @@ void PPCTargetInfo::adjust(DiagnosticsEngine &Diags, LangOptions &Opts) {
     MaxAtomicInlineWidth = 128;
 }
 
-ArrayRef<Builtin::Info> PPCTargetInfo::getTargetBuiltins() const {
-  return llvm::ArrayRef(BuiltinInfo,
-                        clang::PPC::LastTSBuiltin - Builtin::FirstTSBuiltin);
+std::pair<const char *, ArrayRef<Builtin::Info>>
+PPCTargetInfo::getTargetBuiltinStorage() const {
+  return {BuiltinStorage.StringTable, BuiltinStorage.Infos};
 }
 
 bool PPCTargetInfo::validateCpuSupports(StringRef FeatureStr) const {
diff --git a/clang/lib/Basic/Targets/PPC.h b/clang/lib/Basic/Targets/PPC.h
index b0833d30550af4..4e8da8406116ea 100644
--- a/clang/lib/Basic/Targets/PPC.h
+++ b/clang/lib/Basic/Targets/PPC.h
@@ -187,7 +187,8 @@ class LLVM_LIBRARY_VISIBILITY PPCTargetInfo : public TargetInfo {
 
   StringRef getABI() const override { return ABI; }
 
-  ArrayRef<Builtin::Info> getTargetBuiltins() const override;
+  std::pair<const char *, ArrayRef<Builtin::Info>>
+  getTargetBuiltinStorage() const override;
 
   bool isCLZForZeroUndef() const override { return false; }
 
diff --git a/clang/lib/Basic/Targets/RISCV.cpp b/clang/lib/Basic/Targets/RISCV.cpp
index a541dfedc9b8e1..0add1dfdb2f572 100644
--- a/clang/lib/Basic/Targets/RISCV.cpp
+++ b/clang/lib/Basic/Targets/RISCV.cpp
@@ -240,22 +240,28 @@ void RISCVTargetInfo::getTargetDefines(const LangOptions &Opts,
   }
 }
 
-static constexpr Builtin::Info BuiltinInfo[] = {
-#define BUILTIN(ID, TYPE, ATTRS)                                               \
-  {#ID, TYPE, ATTRS, nullptr, HeaderDesc::NO_HEADER, ALL_LANGUAGES},
-#define TARGET_BUILTIN(ID, TYPE, ATTRS, FEATURE)                               \
-  {#ID, TYPE, ATTRS, FEATURE, HeaderDesc::NO_HEADER, ALL_LANGUAGES},
+static constexpr int NumBuiltins =
+    clang::RISCV::LastTSBuiltin - Builtin::FirstTSBuiltin;
+
+static constexpr auto BuiltinStorage = Builtin::Storage<NumBuiltins>::Make(
+#define BUILTIN CLANG_BUILTIN_STR_TABLE
+#define TARGET_BUILTIN CLANG_TARGET_BUILTIN_STR_TABLE
+#include "clang/Basic/BuiltinsRISCVVector.def"
+#define BUILTIN CLANG_BUILTIN_STR_TABLE
+#define TARGET_BUILTIN CLANG_TARGET_BUILTIN_STR_TABLE
+#include "clang/Basic/BuiltinsRISCV.inc"
+    , {
+#define BUILTIN CLANG_BUILTIN_ENTRY
+#define TARGET_BUILTIN CLANG_TARGET_BUILTIN_ENTRY
 #include "clang/Basic/BuiltinsRISCVVector.def"
-#define BUILTIN(ID, TYPE, ATTRS)                                               \
-  {#ID, TYPE, ATTRS, nullptr, HeaderDesc::NO_HEADER, ALL_LANGUAGES},
-#define TARGET_BUILTIN(ID, TYPE, ATTRS, FEATURE)                               \
-  {#ID, TYPE, ATTRS, FEATURE, HeaderDesc::NO_HEADER, ALL_LANGUAGES},
+#define BUILTIN CLANG_BUILTIN_ENTRY
+#define TARGET_BUILTIN CLANG_TARGET_BUILTIN_ENTRY
 #include "clang/Basic/BuiltinsRISCV.inc"
-};
+      });
 
-ArrayRef<Builtin::Info> RISCVTargetInfo::getTargetBuiltins() const {
-  return llvm::ArrayRef(BuiltinInfo,
-                        clang::RISCV::LastTSBuiltin - Builtin::FirstTSBuiltin);
+std::pair<const char *, ArrayRef<Builtin::Info>>
+RISCVTargetInfo::getTargetBuiltinStorage() const {
+  return {BuiltinStorage.StringTable, BuiltinStorage.Infos};
 }
 
 bool RISCVTargetInfo::initFeatureMap(
diff --git a/clang/lib/Basic/Targets/RISCV.h b/clang/lib/Basic/Targets/RISCV.h
index 68f10e74ba98c3..a168952e6c6f54 100644
--- a/clang/lib/Basic/Targets/RISCV.h
+++ b/clang/lib/Basic/Targets/RISCV.h
@@ -62,7 +62,8 @@ class RISCVTargetInfo : public TargetInfo {
   void getTargetDefines(const LangOptions &Opts,
                         MacroBuilder &Builder) const override;
 
-  ArrayRef<Builtin::Info> getTargetBuiltins() const override;
+  std::pair<const char *, ArrayRef<Builtin::Info>>
+  getTargetBuiltinStorage() const override;
 
   BuiltinVaListKind getBuiltinVaListKind() const override {
     return TargetInfo::VoidPtrBuiltinVaList;
diff --git a/clang/lib/Basic/Targets/SPIR.cpp b/clang/lib/Basic/Targets/SPIR.cpp
index 040303983594f8..b0e1fa35cca695 100644
--- a/clang/lib/Basic/Targets/SPIR.cpp
+++ b/clang/lib/Basic/Targets/SPIR.cpp
@@ -81,8 +81,9 @@ SPIRV64AMDGCNTargetInfo::convertConstraint(const char *&Constraint) const {
   return AMDGPUTI.convertConstraint(Constraint);
 }
 
-ArrayRef<Builtin::Info> SPIRV64AMDGCNTargetInfo::getTargetBuiltins() const {
-  return AMDGPUTI.getTargetBuiltins();
+std::pair<const char *, ArrayRef<Builtin::Info>>
+SPIRV64AMDGCNTargetInfo::getTargetBuiltinStorage() const {
+  return AMDGPUTI.getTargetBuiltinStorage();
 }
 
 void SPIRV64AMDGCNTargetInfo::getTargetDefines(const LangOptions &Opts,
diff --git a/clang/lib/Basic/Targets/SPIR.h b/clang/lib/Basic/Targets/SPIR.h
index 85e4bd920d8535..f25c0cb93e6579 100644
--- a/clang/lib/Basic/Targets/SPIR.h
+++ b/clang/lib/Basic/Targets/SPIR.h
@@ -159,7 +159,10 @@ class LLVM_LIBRARY_VISIBILITY BaseSPIRTargetInfo : public TargetInfo {
   // memcpy as per section 3 of the SPIR spec.
   bool useFP16ConversionIntrinsics() const override { return false; }
 
-  ArrayRef<Builtin::Info> getTargetBuiltins() const override { return {}; }
+  std::pair<const char *, ArrayRef<Builtin::Info>>
+  getTargetBuiltinStorage() const override {
+    return {nullptr, {}};
+  }
 
   std::string_view getClobbers() const override { return ""; }
 
@@ -408,7 +411,8 @@ class LLVM_LIBRARY_VISIBILITY SPIRV64AMDGCNTargetInfo final
 
   std::string convertConstraint(const char *&Constraint) const override;
 
-  ArrayRef<Builtin::Info> getTargetBuiltins() const override;
+  std::pair<const char *, ArrayRef<Builtin::Info>>
+  getTargetBuiltinStorage() const override;
 
   void getTargetDefines(const LangOptions &Opts,
                         MacroBuilder &Builder) const override;
diff --git a/clang/lib/Basic/Targets/Sparc.h b/clang/lib/Basic/Targets/Sparc.h
index 9c529a5bc5e7fa..480073fae35c59 100644
--- a/clang/lib/Basic/Targets/Sparc.h
+++ b/clang/lib/Basic/Targets/Sparc.h
@@ -48,9 +48,10 @@ class LLVM_LIBRARY_VISIBILITY SparcTargetInfo : public TargetInfo {
 
   bool hasFeature(StringRef Feature) const override;
 
-  ArrayRef<Builtin::Info> getTargetBuiltins() const override {
+  std::pair<const char *, ArrayRef<Builtin::Info>>
+  getTargetBuiltinStorage() const override {
     // FIXME: Implement!
-    return {};
+    return {nullptr, {}};
   }
   BuiltinVaListKind getBuiltinVaListKind() const override {
     return TargetInfo::VoidPtrBuiltinVaList;
diff --git a/clang/lib/Basic/Targets/SystemZ.cpp b/clang/lib/Basic/Targets/SystemZ.cpp
index 06f08db2eadd47..ffc55a80db9d9b 100644
--- a/clang/lib/Basic/Targets/SystemZ.cpp
+++ b/clang/lib/Basic/Targets/SystemZ.cpp
@@ -20,13 +20,18 @@
 using namespace clang;
 using namespace clang::targets;
 
-static constexpr Builtin::Info BuiltinInfo[] = {
-#define BUILTIN(ID, TYPE, ATTRS)                                               \
-  {#ID, TYPE, ATTRS, nullptr, HeaderDesc::NO_HEADER, ALL_LANGUAGES},
-#define TARGET_BUILTIN(ID, TYPE, ATTRS, FEATURE)                               \
-  {#ID, TYPE, ATTRS, FEATURE, HeaderDesc::NO_HEADER, ALL_LANGUAGES},
+static constexpr int NumBuiltins =
+    clang::SystemZ::LastTSBuiltin - Builtin::FirstTSBuiltin;
+
+static constexpr auto BuiltinStorage = Builtin::Storage<NumBuiltins>::Make(
+#define BUILTIN CLANG_BUILTIN_STR_TABLE
+#define TARGET_BUILTIN CLANG_TARGET_BUILTIN_STR_TABLE
 #include "clang/Basic/BuiltinsSystemZ.def"
-};
+    , {
+#define BUILTIN CLANG_BUILTIN_ENTRY
+#define TARGET_BUILTIN CLANG_TARGET_BUILTIN_ENTRY
+#include "clang/Basic/BuiltinsSystemZ.def"
+      });
 
 const char *const SystemZTargetInfo::GCCRegNames[] = {
     "r0",  "r1",  "r2",  "r3",  "r4",  "r5",  "r6",  "r7",
@@ -170,7 +175,7 @@ void SystemZTargetInfo::getTargetDefines(const LangOptions &Opts,
     Builder.defineMacro("__VEC__", "10304");
 }
 
-ArrayRef<Builtin::Info> SystemZTargetInfo::getTargetBuiltins() const {
-  return llvm::ArrayRef(BuiltinInfo, clang::SystemZ::LastTSBuiltin -
-                                         Builtin::FirstTSBuiltin);
+std::pair<const char *, ArrayRef<Builtin::Info>>
+SystemZTargetInfo::getTargetBuiltinStorage() const {
+  return {BuiltinStorage.StringTable, BuiltinStorage.Infos};
 }
diff --git a/clang/lib/Basic/Targets/SystemZ.h b/clang/lib/Basic/Targets/SystemZ.h
index ef9a07033a6e4f..98637f230b69cc 100644
--- a/clang/lib/Basic/Targets/SystemZ.h
+++ b/clang/lib/Basic/Targets/SystemZ.h
@@ -99,7 +99,8 @@ class LLVM_LIBRARY_VISIBILITY SystemZTargetInfo : public TargetInfo {
   void getTargetDefines(const LangOptions &Opts,
                         MacroBuilder &Builder) const override;
 
-  ArrayRef<Builtin::Info> getTargetBuiltins() const override;
+  std::pair<const char *, ArrayRef<Builtin::Info>>
+  getTargetBuiltinStorage() const override;
 
   ArrayRef<const char *> getGCCRegNames() const override;
 
diff --git a/clang/lib/Basic/Targets/TCE.h b/clang/lib/Basic/Targets/TCE.h
index d6280b02f07b25..52a2b13fe28057 100644
--- a/clang/lib/Basic/Targets/TCE.h
+++ b/clang/lib/Basic/Targets/TCE.h
@@ -95,7 +95,10 @@ class LLVM_LIBRARY_VISIBILITY TCETargetInfo : public TargetInfo {
 
   bool hasFeature(StringRef Feature) const override { return Feature == "tce"; }
 
-  ArrayRef<Builtin::Info> getTargetBuiltins() const override { return {}; }
+  std::pair<const char *, ArrayRef<Builtin::Info>>
+  getTargetBuiltinStorage() const override {
+    return {nullptr, {}};
+  }
 
   std::string_view getClobbers() const override { return ""; }
 
diff --git a/clang/lib/Basic/Targets/VE.cpp b/clang/lib/Basic/Targets/VE.cpp
index 67cae8faf60522..f54ddc00f6f68a 100644
--- a/clang/lib/Basic/Targets/VE.cpp
+++ b/clang/lib/Basic/Targets/VE.cpp
@@ -18,11 +18,16 @@
 using namespace clang;
 using namespace clang::targets;
 
-static constexpr Builtin::Info BuiltinInfo[] = {
-#define BUILTIN(ID, TYPE, ATTRS)                                               \
-  {#ID, TYPE, ATTRS, nullptr, HeaderDesc::NO_HEADER, ALL_LANGUAGES},
+static constexpr int NumBuiltins =
+    clang::VE::LastTSBuiltin - Builtin::FirstTSBuiltin;
+
+static constexpr auto BuiltinStorage = Builtin::Storage<NumBuiltins>::Make(
+#define BUILTIN CLANG_BUILTIN_STR_TABLE
+#include "clang/Basic/BuiltinsVE.def"
+    , {
+#define BUILTIN CLANG_BUILTIN_ENTRY
 #include "clang/Basic/BuiltinsVE.def"
-};
+      });
 
 void VETargetInfo::getTargetDefines(const LangOptions &Opts,
                                     MacroBuilder &Builder) const {
@@ -39,7 +44,7 @@ void VETargetInfo::getTargetDefines(const LangOptions &Opts,
   Builder.defineMacro("__GCC_HAVE_SYNC_COMPARE_AND_SWAP_8");
 }
 
-ArrayRef<Builtin::Info> VETargetInfo::getTargetBuiltins() const {
-  return llvm::ArrayRef(BuiltinInfo,
-                        clang::VE::LastTSBuiltin - Builtin::FirstTSBuiltin);
+std::pair<const char *, ArrayRef<Builtin::Info>>
+VETargetInfo::getTargetBuiltinStorage() const {
+  return {BuiltinStorage.StringTable, BuiltinStorage.Infos};
 }
diff --git a/clang/lib/Basic/Targets/VE.h b/clang/lib/Basic/Targets/VE.h
index 7e8fdf6096ef23..d2b0cd6de4d51a 100644
--- a/clang/lib/Basic/Targets/VE.h
+++ b/clang/lib/Basic/Targets/VE.h
@@ -55,7 +55,8 @@ class LLVM_LIBRARY_VISIBILITY VETargetInfo : public TargetInfo {
 
   bool hasSjLjLowering() const override { return true; }
 
-  ArrayRef<Builtin::Info> getTargetBuiltins() const override;
+  std::pair<const char *, ArrayRef<Builtin::Info>>
+  getTargetBuiltinStorage() const override;
 
   BuiltinVaListKind getBuiltinVaListKind() const override {
     return TargetInfo::VoidPtrBuiltinVaList;
diff --git a/clang/lib/Basic/Targets/WebAssembly.cpp b/clang/lib/Basic/Targets/WebAssembly.cpp
index 85e550ad20d5ee..a837c3df99217e 100644
--- a/clang/lib/Basic/Targets/WebAssembly.cpp
+++ b/clang/lib/Basic/Targets/WebAssembly.cpp
@@ -20,15 +20,19 @@
 using namespace clang;
 using namespace clang::targets;
 
-static constexpr Builtin::Info BuiltinInfo[] = {
-#define BUILTIN(ID, TYPE, ATTRS)                                               \
-  {#ID, TYPE, ATTRS, nullptr, HeaderDesc::NO_HEADER, ALL_LANGUAGES},
-#define TARGET_BUILTIN(ID, TYPE, ATTRS, FEATURE)                               \
-  {#ID, TYPE, ATTRS, FEATURE, HeaderDesc::NO_HEADER, ALL_LANGUAGES},
-#define LIBBUILTIN(ID, TYPE, ATTRS, HEADER)                                    \
-  {#ID, TYPE, ATTRS, nullptr, HeaderDesc::HEADER, ALL_LANGUAGES},
+static constexpr int NumBuiltins =
+    clang::WebAssembly::LastTSBuiltin - Builtin::FirstTSBuiltin;
+
+static constexpr auto BuiltinStorage = Builtin::Storage<NumBuiltins>::Make(
+#define BUILTIN CLANG_BUILTIN_STR_TABLE
+#define TARGET_BUILTIN CLANG_TARGET_BUILTIN_STR_TABLE
+#include "clang/Basic/BuiltinsWebAssembly.def"
+    , {
+#define BUILTIN CLANG_BUILTIN_ENTRY
+#define TARGET_BUILTIN CLANG_TARGET_BUILTIN_ENTRY
+#define LIBBUILTIN CLANG_LIBBUILTIN_ENTRY
 #include "clang/Basic/BuiltinsWebAssembly.def"
-};
+      });
 
 static constexpr llvm::StringLiteral ValidCPUNames[] = {
     {"mvp"}, {"bleeding-edge"}, {"generic"}, {"lime"}};
@@ -360,9 +364,9 @@ bool WebAssemblyTargetInfo::handleTargetFeatures(
   return true;
 }
 
-ArrayRef<Builtin::Info> WebAssemblyTargetInfo::getTargetBuiltins() const {
-  return llvm::ArrayRef(BuiltinInfo, clang::WebAssembly::LastTSBuiltin -
-                                         Builtin::FirstTSBuiltin);
+std::pair<const char *, ArrayRef<Builtin::Info>>
+WebAssemblyTargetInfo::getTargetBuiltinStorage() const {
+  return {BuiltinStorage.StringTable, BuiltinStorage.Infos};
 }
 
 void WebAssemblyTargetInfo::adjust(DiagnosticsEngine &Diags,
diff --git a/clang/lib/Basic/Targets/WebAssembly.h b/clang/lib/Basic/Targets/WebAssembly.h
index c92ed161a92a77..1cae72e58e08ba 100644
--- a/clang/lib/Basic/Targets/WebAssembly.h
+++ b/clang/lib/Basic/Targets/WebAssembly.h
@@ -120,7 +120,8 @@ class LLVM_LIBRARY_VISIBILITY WebAssemblyTargetInfo : public TargetInfo {
 
   bool setCPU(const std::string &Name) final { return isValidCPUName(Name); }
 
-  ArrayRef<Builtin::Info> getTargetBuiltins() const final;
+  std::pair<const char *, ArrayRef<Builtin::Info>>
+  getTargetBuiltinStorage() const final;
 
   BuiltinVaListKind getBuiltinVaListKind() const final {
     return VoidPtrBuiltinVaList;
diff --git a/clang/lib/Basic/Targets/X86.cpp b/clang/lib/Basic/Targets/X86.cpp
index 1b16888a0711b5..0b071573aa1e0f 100644
--- a/clang/lib/Basic/Targets/X86.cpp
+++ b/clang/lib/Basic/Targets/X86.cpp
@@ -23,31 +23,45 @@
 namespace clang {
 namespace targets {
 
-static constexpr Builtin::Info BuiltinInfoX86[] = {
-#define BUILTIN(ID, TYPE, ATTRS)                                               \
-  {#ID, TYPE, ATTRS, nullptr, HeaderDesc::NO_HEADER, ALL_LANGUAGES},
-#define TARGET_BUILTIN(ID, TYPE, ATTRS, FEATURE)                               \
-  {#ID, TYPE, ATTRS, FEATURE, HeaderDesc::NO_HEADER, ALL_LANGUAGES},
-#define TARGET_HEADER_BUILTIN(ID, TYPE, ATTRS, HEADER, LANGS, FEATURE)         \
-  {#ID, TYPE, ATTRS, FEATURE, HeaderDesc::HEADER, LANGS},
+// The x86-32 builtins are a subset and prefix of the x86-64 builtins.
+static constexpr int NumX86Builtins =
+    X86::LastX86CommonBuiltin - Builtin::FirstTSBuiltin + 1;
+static constexpr int NumX86_64Builtins =
+    X86::LastTSBuiltin - Builtin::FirstTSBuiltin;
+static_assert(NumX86Builtins < NumX86_64Builtins);
+
+static constexpr auto BuiltinStorage =
+    Builtin::Storage<NumX86_64Builtins>::Make(
+#define BUILTIN CLANG_BUILTIN_STR_TABLE
+#define TARGET_BUILTIN CLANG_TARGET_BUILTIN_STR_TABLE
+#define TARGET_HEADER_BUILTIN CLANG_TARGET_HEADER_BUILTIN_STR_TABLE
 #include "clang/Basic/BuiltinsX86.def"
 
-#define BUILTIN(ID, TYPE, ATTRS)                                               \
-  {#ID, TYPE, ATTRS, nullptr, HeaderDesc::NO_HEADER, ALL_LANGUAGES},
-#define TARGET_BUILTIN(ID, TYPE, ATTRS, FEATURE)                               \
-  {#ID, TYPE, ATTRS, FEATURE, HeaderDesc::NO_HEADER, ALL_LANGUAGES},
-#define TARGET_HEADER_BUILTIN(ID, TYPE, ATTRS, HEADER, LANGS, FEATURE)         \
-  {#ID, TYPE, ATTRS, FEATURE, HeaderDesc::HEADER, LANGS},
+#define BUILTIN CLANG_BUILTIN_STR_TABLE
+#define TARGET_BUILTIN CLANG_TARGET_BUILTIN_STR_TABLE
+#define TARGET_HEADER_BUILTIN CLANG_TARGET_HEADER_BUILTIN_STR_TABLE
 #include "clang/Basic/BuiltinsX86.inc"
 
-#define BUILTIN(ID, TYPE, ATTRS)                                               \
-  {#ID, TYPE, ATTRS, nullptr, HeaderDesc::NO_HEADER, ALL_LANGUAGES},
-#define TARGET_BUILTIN(ID, TYPE, ATTRS, FEATURE)                               \
-  {#ID, TYPE, ATTRS, FEATURE, HeaderDesc::NO_HEADER, ALL_LANGUAGES},
-#define TARGET_HEADER_BUILTIN(ID, TYPE, ATTRS, HEADER, LANGS, FEATURE)         \
-  {#ID, TYPE, ATTRS, FEATURE, HeaderDesc::HEADER, LANGS},
+#define BUILTIN CLANG_BUILTIN_STR_TABLE
+#define TARGET_BUILTIN CLANG_TARGET_BUILTIN_STR_TABLE
+#define TARGET_HEADER_BUILTIN CLANG_TARGET_HEADER_BUILTIN_STR_TABLE
 #include "clang/Basic/BuiltinsX86_64.def"
-};
+        , {
+#define BUILTIN CLANG_BUILTIN_ENTRY
+#define TARGET_BUILTIN CLANG_TARGET_BUILTIN_ENTRY
+#define TARGET_HEADER_BUILTIN CLANG_TARGET_HEADER_BUILTIN_ENTRY
+#include "clang/Basic/BuiltinsX86.def"
+
+#define BUILTIN CLANG_BUILTIN_ENTRY
+#define TARGET_BUILTIN CLANG_TARGET_BUILTIN_ENTRY
+#define TARGET_HEADER_BUILTIN CLANG_TARGET_HEADER_BUILTIN_ENTRY
+#include "clang/Basic/BuiltinsX86.inc"
+
+#define BUILTIN CLANG_BUILTIN_ENTRY
+#define TARGET_BUILTIN CLANG_TARGET_BUILTIN_ENTRY
+#define TARGET_HEADER_BUILTIN CLANG_TARGET_HEADER_BUILTIN_ENTRY
+#include "clang/Basic/BuiltinsX86_64.def"
+          });
 
 static const char *const GCCRegNames[] = {
     "ax",    "dx",    "cx",    "bx",    "si",      "di",    "bp",    "sp",
@@ -1864,12 +1878,14 @@ ArrayRef<TargetInfo::AddlRegName> X86TargetInfo::getGCCAddlRegNames() const {
   return llvm::ArrayRef(AddlRegNames);
 }
 
-ArrayRef<Builtin::Info> X86_32TargetInfo::getTargetBuiltins() const {
-  return llvm::ArrayRef(BuiltinInfoX86, clang::X86::LastX86CommonBuiltin -
-                                            Builtin::FirstTSBuiltin + 1);
+std::pair<const char *, ArrayRef<Builtin::Info>>
+X86_32TargetInfo::getTargetBuiltinStorage() const {
+  // Only use the relevant prefix of the infos, the string table base is common.
+  return {BuiltinStorage.StringTable,
+          llvm::ArrayRef(BuiltinStorage.Infos).take_front(NumX86Builtins)};
 }
 
-ArrayRef<Builtin::Info> X86_64TargetInfo::getTargetBuiltins() const {
-  return llvm::ArrayRef(BuiltinInfoX86,
-                        X86::LastTSBuiltin - Builtin::FirstTSBuiltin);
+std::pair<const char *, ArrayRef<Builtin::Info>>
+X86_64TargetInfo::getTargetBuiltinStorage() const {
+  return {BuiltinStorage.StringTable, BuiltinStorage.Infos};
 }
diff --git a/clang/lib/Basic/Targets/X86.h b/clang/lib/Basic/Targets/X86.h
index 3ed36c8fa724b5..385d9e87a4e378 100644
--- a/clang/lib/Basic/Targets/X86.h
+++ b/clang/lib/Basic/Targets/X86.h
@@ -508,7 +508,8 @@ class LLVM_LIBRARY_VISIBILITY X86_32TargetInfo : public X86TargetInfo {
       MaxAtomicInlineWidth = 64;
   }
 
-  ArrayRef<Builtin::Info> getTargetBuiltins() const override;
+  std::pair<const char *, ArrayRef<Builtin::Info>>
+  getTargetBuiltinStorage() const override;
 
   bool hasBitIntType() const override { return true; }
   size_t getMaxBitIntWidth() const override {
@@ -812,7 +813,8 @@ class LLVM_LIBRARY_VISIBILITY X86_64TargetInfo : public X86TargetInfo {
       MaxAtomicInlineWidth = 128;
   }
 
-  ArrayRef<Builtin::Info> getTargetBuiltins() const override;
+  std::pair<const char *, ArrayRef<Builtin::Info>>
+  getTargetBuiltinStorage() const override;
 
   bool hasBitIntType() const override { return true; }
   size_t getMaxBitIntWidth() const override {
diff --git a/clang/lib/Basic/Targets/XCore.cpp b/clang/lib/Basic/Targets/XCore.cpp
index fd377bbfb90e16..403d421d0c0670 100644
--- a/clang/lib/Basic/Targets/XCore.cpp
+++ b/clang/lib/Basic/Targets/XCore.cpp
@@ -18,13 +18,17 @@
 using namespace clang;
 using namespace clang::targets;
 
-static constexpr Builtin::Info BuiltinInfo[] = {
-#define BUILTIN(ID, TYPE, ATTRS)                                               \
-  {#ID, TYPE, ATTRS, nullptr, HeaderDesc::NO_HEADER, ALL_LANGUAGES},
-#define LIBBUILTIN(ID, TYPE, ATTRS, HEADER)                                    \
-  {#ID, TYPE, ATTRS, nullptr, HeaderDesc::HEADER, ALL_LANGUAGES},
+static constexpr int NumBuiltins =
+    XCore::LastTSBuiltin - Builtin::FirstTSBuiltin;
+
+static constexpr auto BuiltinStorage = Builtin::Storage<NumBuiltins>::Make(
+#define BUILTIN CLANG_BUILTIN_STR_TABLE
+#include "clang/Basic/BuiltinsXCore.def"
+    , {
+#define BUILTIN CLANG_BUILTIN_ENTRY
+#define LIBBUILTIN CLANG_LIBBUILTIN_ENTRY
 #include "clang/Basic/BuiltinsXCore.def"
-};
+      });
 
 void XCoreTargetInfo::getTargetDefines(const LangOptions &Opts,
                                        MacroBuilder &Builder) const {
@@ -32,7 +36,7 @@ void XCoreTargetInfo::getTargetDefines(const LangOptions &Opts,
   Builder.defineMacro("__XS1B__");
 }
 
-ArrayRef<Builtin::Info> XCoreTargetInfo::getTargetBuiltins() const {
-  return llvm::ArrayRef(BuiltinInfo,
-                        clang::XCore::LastTSBuiltin - Builtin::FirstTSBuiltin);
+std::pair<const char *, ArrayRef<Builtin::Info>>
+XCoreTargetInfo::getTargetBuiltinStorage() const {
+  return {BuiltinStorage.StringTable, BuiltinStorage.Infos};
 }
diff --git a/clang/lib/Basic/Targets/XCore.h b/clang/lib/Basic/Targets/XCore.h
index 84fd59d1a71e49..1082990d74b2b0 100644
--- a/clang/lib/Basic/Targets/XCore.h
+++ b/clang/lib/Basic/Targets/XCore.h
@@ -43,7 +43,8 @@ class LLVM_LIBRARY_VISIBILITY XCoreTargetInfo : public TargetInfo {
   void getTargetDefines(const LangOptions &Opts,
                         MacroBuilder &Builder) const override;
 
-  ArrayRef<Builtin::Info> getTargetBuiltins() const override;
+  std::pair<const char *, ArrayRef<Builtin::Info>>
+  getTargetBuiltinStorage() const override;
 
   BuiltinVaListKind getBuiltinVaListKind() const override {
     return TargetInfo::VoidPtrBuiltinVaList;