Change the `linker_private_weak_def_auto' linkage to `linkonce_odr_auto_hide' to

make it more consistent with its intended semantics.

The `linker_private_weak_def_auto' linkage type was meant to automatically hide
globals which never had their addresses taken. It has nothing to do with the
`linker_private' linkage type, which outputs the symbols with a `l' (ell) prefix
among other things.

The intended semantic is more like the `linkonce_odr' linkage type.

Change the name of the linkage type to `linkonce_odr_auto_hide'. And therefore
changing the semantics so that it produces the correct output for the linker.

Note: The old linkage name `linker_private_weak_def_auto' will still parse but
is not a synonym for `linkonce_odr_auto_hide'. This should be removed in 4.0.
<rdar://problem/11754934>


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162114 91177308-0d34-0410-b5e6-96231b3b80d8

17 files changed, 59 insertions, 62 deletions

diff --git a/docs/LangRef.html b/docs/LangRef.html
index 0ea83dd8c2..810fce5e7a 100644
--- a/docs/LangRef.html
+++ b/docs/LangRef.html
@@ -25,7 +25,6 @@
           <li><a href="#linkage_private">'<tt>private</tt>' Linkage</a></li>
           <li><a href="#linkage_linker_private">'<tt>linker_private</tt>' Linkage</a></li>
           <li><a href="#linkage_linker_private_weak">'<tt>linker_private_weak</tt>' Linkage</a></li>
-          <li><a href="#linkage_linker_private_weak_def_auto">'<tt>linker_private_weak_def_auto</tt>' Linkage</a></li>
           <li><a href="#linkage_internal">'<tt>internal</tt>' Linkage</a></li>
           <li><a href="#linkage_available_externally">'<tt>available_externally</tt>' Linkage</a></li>
           <li><a href="#linkage_linkonce">'<tt>linkonce</tt>' Linkage</a></li>
@@ -34,6 +33,7 @@
           <li><a href="#linkage_appending">'<tt>appending</tt>' Linkage</a></li>
           <li><a href="#linkage_externweak">'<tt>extern_weak</tt>' Linkage</a></li>
           <li><a href="#linkage_linkonce_odr">'<tt>linkonce_odr</tt>' Linkage</a></li>
+          <li><a href="#linkage_linkonce_odr_auto_hide">'<tt>linkonce_odr_auto_hide</tt>' Linkage</a></li>
           <li><a href="#linkage_weak">'<tt>weak_odr</tt>' Linkage</a></li>
           <li><a href="#linkage_external">'<tt>external</tt>' Linkage</a></li>
           <li><a href="#linkage_dllimport">'<tt>dllimport</tt>' Linkage</a></li>
@@ -576,15 +576,6 @@ define i32 @main() {   <i>; i32()* </i>&nbsp;
       linker. The symbols are removed by the linker from the final linked image
       (executable or dynamic library).</dd>
 
-  <dt><tt><b><a name="linkage_linker_private_weak_def_auto">linker_private_weak_def_auto</a></b></tt></dt>
-  <dd>Similar to "<tt>linker_private_weak</tt>", but it's known that the address
-      of the object is not taken. For instance, functions that had an inline
-      definition, but the compiler decided not to inline it. Note,
-      unlike <tt>linker_private</tt> and <tt>linker_private_weak</tt>,
-      <tt>linker_private_weak_def_auto</tt> may have only <tt>default</tt>
-      visibility.  The symbols are removed by the linker from the final linked
-      image (executable or dynamic library).</dd>
-
   <dt><tt><b><a name="linkage_internal">internal</a></b></tt></dt>
   <dd>Similar to private, but the value shows as a local symbol
       (<tt>STB_LOCAL</tt> in the case of ELF) in the object file. This
@@ -653,6 +644,14 @@ define i32 @main() {   <i>; i32()* </i>&nbsp;
       be merged with equivalent globals.  These linkage types are otherwise the
       same as their non-<tt>odr</tt> versions.</dd>
 
+  <dt><tt><b><a name="linkage_linkonce_odr_auto_hide">linkonce_odr_auto_hide</a></b></tt></dt>
+  <dd>Similar to "<tt>linkonce_odr</tt>", but nothing in the translation unit
+      takes the address of this definition. For instance, functions that had an
+      inline definition, but the compiler decided not to inline it.
+      <tt>linkonce_odr_auto_hide</tt> may have only <tt>default</tt> visibility.
+      The symbols are removed by the linker from the final linked image
+      (executable or dynamic library).</dd>
+
   <dt><tt><b><a name="linkage_external">external</a></b></tt></dt>
   <dd>If none of the above identifiers are used, the global is externally
       visible, meaning that it participates in linkage and can be used to
diff --git a/include/llvm-c/Core.h b/include/llvm-c/Core.h
index 0bd5db3774..eceae5c7b6 100644
--- a/include/llvm-c/Core.h
+++ b/include/llvm-c/Core.h
@@ -282,6 +282,7 @@ typedef enum {
   LLVMLinkOnceAnyLinkage, /**< Keep one copy of function when linking (inline)*/
   LLVMLinkOnceODRLinkage, /**< Same, but only replaced by something
                             equivalent. */
+  LLVMLinkOnceODRAutoHideLinkage, /**< Like LinkOnceODR, but possibly hidden. */
   LLVMWeakAnyLinkage,     /**< Keep one copy of function when linking (weak) */
   LLVMWeakODRLinkage,     /**< Same, but only replaced by something
                             equivalent. */
@@ -295,9 +296,7 @@ typedef enum {
   LLVMGhostLinkage,       /**< Obsolete */
   LLVMCommonLinkage,      /**< Tentative definitions */
   LLVMLinkerPrivateLinkage, /**< Like Private, but linker removes. */
-  LLVMLinkerPrivateWeakLinkage, /**< Like LinkerPrivate, but is weak. */
-  LLVMLinkerPrivateWeakDefAutoLinkage /**< Like LinkerPrivateWeak, but possibly
-                                           hidden. */
+  LLVMLinkerPrivateWeakLinkage /**< Like LinkerPrivate, but is weak. */
 } LLVMLinkage;
 
 typedef enum {
diff --git a/include/llvm/GlobalValue.h b/include/llvm/GlobalValue.h
index 8b969f3354..391b8305cd 100644
--- a/include/llvm/GlobalValue.h
+++ b/include/llvm/GlobalValue.h
@@ -34,6 +34,7 @@ public:
     AvailableExternallyLinkage, ///< Available for inspection, not emission.
     LinkOnceAnyLinkage, ///< Keep one copy of function when linking (inline)
     LinkOnceODRLinkage, ///< Same, but only replaced by something equivalent.
+    LinkOnceODRAutoHideLinkage, ///< Like LinkOnceODRLinkage but addr not taken.
     WeakAnyLinkage,     ///< Keep one copy of named function when linking (weak)
     WeakODRLinkage,     ///< Same, but only replaced by something equivalent.
     AppendingLinkage,   ///< Special purpose, only applies to global arrays
@@ -41,8 +42,6 @@ public:
     PrivateLinkage,     ///< Like Internal, but omit from symbol table.
     LinkerPrivateLinkage, ///< Like Private, but linker removes.
     LinkerPrivateWeakLinkage, ///< Like LinkerPrivate, but weak.
-    LinkerPrivateWeakDefAutoLinkage, ///< Like LinkerPrivateWeak, but possibly
-                                     ///  hidden.
     DLLImportLinkage,   ///< Function to be imported from DLL
     DLLExportLinkage,   ///< Function to be accessible from DLL.
     ExternalWeakLinkage,///< ExternalWeak linkage description.
@@ -123,7 +122,12 @@ public:
     return Linkage == AvailableExternallyLinkage;
   }
   static bool isLinkOnceLinkage(LinkageTypes Linkage) {
-    return Linkage == LinkOnceAnyLinkage || Linkage == LinkOnceODRLinkage;
+    return Linkage == LinkOnceAnyLinkage ||
+           Linkage == LinkOnceODRLinkage ||
+           Linkage == LinkOnceODRAutoHideLinkage;
+  }
+  static bool isLinkOnceODRAutoHideLinkage(LinkageTypes Linkage) {
+    return Linkage == LinkOnceODRAutoHideLinkage;
   }
   static bool isWeakLinkage(LinkageTypes Linkage) {
     return Linkage == WeakAnyLinkage || Linkage == WeakODRLinkage;
@@ -143,13 +147,9 @@ public:
   static bool isLinkerPrivateWeakLinkage(LinkageTypes Linkage) {
     return Linkage == LinkerPrivateWeakLinkage;
   }
-  static bool isLinkerPrivateWeakDefAutoLinkage(LinkageTypes Linkage) {
-    return Linkage == LinkerPrivateWeakDefAutoLinkage;
-  }
   static bool isLocalLinkage(LinkageTypes Linkage) {
     return isInternalLinkage(Linkage) || isPrivateLinkage(Linkage) ||
-      isLinkerPrivateLinkage(Linkage) || isLinkerPrivateWeakLinkage(Linkage) ||
-      isLinkerPrivateWeakDefAutoLinkage(Linkage);
+      isLinkerPrivateLinkage(Linkage) || isLinkerPrivateWeakLinkage(Linkage);
   }
   static bool isDLLImportLinkage(LinkageTypes Linkage) {
     return Linkage == DLLImportLinkage;
@@ -178,8 +178,7 @@ public:
            Linkage == LinkOnceAnyLinkage ||
            Linkage == CommonLinkage ||
            Linkage == ExternalWeakLinkage ||
-           Linkage == LinkerPrivateWeakLinkage ||
-           Linkage == LinkerPrivateWeakDefAutoLinkage;
+           Linkage == LinkerPrivateWeakLinkage;
   }
 
   /// isWeakForLinker - Whether the definition of this global may be replaced at
@@ -192,10 +191,10 @@ public:
            Linkage == WeakODRLinkage ||
            Linkage == LinkOnceAnyLinkage ||
            Linkage == LinkOnceODRLinkage ||
+           Linkage == LinkOnceODRAutoHideLinkage ||
            Linkage == CommonLinkage ||
            Linkage == ExternalWeakLinkage ||
-           Linkage == LinkerPrivateWeakLinkage ||
-           Linkage == LinkerPrivateWeakDefAutoLinkage;
+           Linkage == LinkerPrivateWeakLinkage;
   }
 
   bool hasExternalLinkage() const { return isExternalLinkage(Linkage); }
@@ -205,6 +204,9 @@ public:
   bool hasLinkOnceLinkage() const {
     return isLinkOnceLinkage(Linkage);
   }
+  bool hasLinkOnceODRAutoHideLinkage() const {
+    return isLinkOnceODRAutoHideLinkage(Linkage);
+  }
   bool hasWeakLinkage() const {
     return isWeakLinkage(Linkage);
   }
@@ -215,9 +217,6 @@ public:
   bool hasLinkerPrivateWeakLinkage() const {
     return isLinkerPrivateWeakLinkage(Linkage);
   }
-  bool hasLinkerPrivateWeakDefAutoLinkage() const {
-    return isLinkerPrivateWeakDefAutoLinkage(Linkage);
-  }
   bool hasLocalLinkage() const { return isLocalLinkage(Linkage); }
   bool hasDLLImportLinkage() const { return isDLLImportLinkage(Linkage); }
   bool hasDLLExportLinkage() const { return isDLLExportLinkage(Linkage); }
diff --git a/lib/AsmParser/LLLexer.cpp b/lib/AsmParser/LLLexer.cpp
index 481733dd4e..e045804594 100644
--- a/lib/AsmParser/LLLexer.cpp
+++ b/lib/AsmParser/LLLexer.cpp
@@ -456,11 +456,12 @@ lltok::Kind LLLexer::LexIdentifier() {
   KEYWORD(private);
   KEYWORD(linker_private);
   KEYWORD(linker_private_weak);
-  KEYWORD(linker_private_weak_def_auto);
+  KEYWORD(linker_private_weak_def_auto); // FIXME: For backwards compatibility.
   KEYWORD(internal);
   KEYWORD(available_externally);
   KEYWORD(linkonce);
   KEYWORD(linkonce_odr);
+  KEYWORD(linkonce_odr_auto_hide);
   KEYWORD(weak);
   KEYWORD(weak_odr);
   KEYWORD(appending);
diff --git a/lib/AsmParser/LLParser.cpp b/lib/AsmParser/LLParser.cpp
index 0ff8edd61b..a9c7e98964 100644
--- a/lib/AsmParser/LLParser.cpp
+++ b/lib/AsmParser/LLParser.cpp
@@ -184,12 +184,13 @@ bool LLParser::ParseTopLevelEntities() {
     case lltok::kw_private:             // OptionalLinkage
     case lltok::kw_linker_private:      // OptionalLinkage
     case lltok::kw_linker_private_weak: // OptionalLinkage
-    case lltok::kw_linker_private_weak_def_auto: // OptionalLinkage
+    case lltok::kw_linker_private_weak_def_auto: // FIXME: backwards compat.
     case lltok::kw_internal:            // OptionalLinkage
     case lltok::kw_weak:                // OptionalLinkage
     case lltok::kw_weak_odr:            // OptionalLinkage
     case lltok::kw_linkonce:            // OptionalLinkage
     case lltok::kw_linkonce_odr:        // OptionalLinkage
+    case lltok::kw_linkonce_odr_auto_hide: // OptionalLinkage
     case lltok::kw_appending:           // OptionalLinkage
     case lltok::kw_dllexport:           // OptionalLinkage
     case lltok::kw_common:              // OptionalLinkage
@@ -576,8 +577,7 @@ bool LLParser::ParseAlias(const std::string &Name, LocTy NameLoc,
       Linkage != GlobalValue::InternalLinkage &&
       Linkage != GlobalValue::PrivateLinkage &&
       Linkage != GlobalValue::LinkerPrivateLinkage &&
-      Linkage != GlobalValue::LinkerPrivateWeakLinkage &&
-      Linkage != GlobalValue::LinkerPrivateWeakDefAutoLinkage)
+      Linkage != GlobalValue::LinkerPrivateWeakLinkage)
     return Error(LinkageLoc, "invalid linkage type for alias");
 
   Constant *Aliasee;
@@ -990,12 +990,12 @@ bool LLParser::ParseOptionalAttrs(Attributes &Attrs, unsigned AttrKind) {
 ///   ::= 'private'
 ///   ::= 'linker_private'
 ///   ::= 'linker_private_weak'
-///   ::= 'linker_private_weak_def_auto'
 ///   ::= 'internal'
 ///   ::= 'weak'
 ///   ::= 'weak_odr'
 ///   ::= 'linkonce'
 ///   ::= 'linkonce_odr'
+///   ::= 'linkonce_odr_auto_hide'
 ///   ::= 'available_externally'
 ///   ::= 'appending'
 ///   ::= 'dllexport'
@@ -1012,14 +1012,15 @@ bool LLParser::ParseOptionalLinkage(unsigned &Res, bool &HasLinkage) {
   case lltok::kw_linker_private_weak:
     Res = GlobalValue::LinkerPrivateWeakLinkage;
     break;
-  case lltok::kw_linker_private_weak_def_auto:
-    Res = GlobalValue::LinkerPrivateWeakDefAutoLinkage;
-    break;
   case lltok::kw_internal:       Res = GlobalValue::InternalLinkage;      break;
   case lltok::kw_weak:           Res = GlobalValue::WeakAnyLinkage;       break;
   case lltok::kw_weak_odr:       Res = GlobalValue::WeakODRLinkage;       break;
   case lltok::kw_linkonce:       Res = GlobalValue::LinkOnceAnyLinkage;   break;
   case lltok::kw_linkonce_odr:   Res = GlobalValue::LinkOnceODRLinkage;   break;
+  case lltok::kw_linkonce_odr_auto_hide:
+  case lltok::kw_linker_private_weak_def_auto: // FIXME: For backwards compat.
+    Res = GlobalValue::LinkOnceODRAutoHideLinkage;
+    break;
   case lltok::kw_available_externally:
     Res = GlobalValue::AvailableExternallyLinkage;
     break;
@@ -2653,11 +2654,11 @@ bool LLParser::ParseFunctionHeader(Function *&Fn, bool isDefine) {
   case GlobalValue::PrivateLinkage:
   case GlobalValue::LinkerPrivateLinkage:
   case GlobalValue::LinkerPrivateWeakLinkage:
-  case GlobalValue::LinkerPrivateWeakDefAutoLinkage:
   case GlobalValue::InternalLinkage:
   case GlobalValue::AvailableExternallyLinkage:
   case GlobalValue::LinkOnceAnyLinkage:
   case GlobalValue::LinkOnceODRLinkage:
+  case GlobalValue::LinkOnceODRAutoHideLinkage:
   case GlobalValue::WeakAnyLinkage:
   case GlobalValue::WeakODRLinkage:
   case GlobalValue::DLLExportLinkage:
diff --git a/lib/AsmParser/LLToken.h b/lib/AsmParser/LLToken.h
index 0b0b98036e..9fd63f2e9a 100644
--- a/lib/AsmParser/LLToken.h
+++ b/lib/AsmParser/LLToken.h
@@ -37,8 +37,10 @@ namespace lltok {
     kw_global,  kw_constant,
 
     kw_private, kw_linker_private, kw_linker_private_weak,
-    kw_linker_private_weak_def_auto, kw_internal,
-    kw_linkonce, kw_linkonce_odr, kw_weak, kw_weak_odr, kw_appending,
+    kw_linker_private_weak_def_auto, // FIXME: For backwards compatibility.
+    kw_internal,
+    kw_linkonce, kw_linkonce_odr, kw_linkonce_odr_auto_hide,
+    kw_weak, kw_weak_odr, kw_appending,
     kw_dllimport, kw_dllexport, kw_common, kw_available_externally,
     kw_default, kw_hidden, kw_protected,
     kw_unnamed_addr,
diff --git a/lib/Bitcode/Reader/BitcodeReader.cpp b/lib/Bitcode/Reader/BitcodeReader.cpp
index 4ffee38c8e..65fd52e6d2 100644
--- a/lib/Bitcode/Reader/BitcodeReader.cpp
+++ b/lib/Bitcode/Reader/BitcodeReader.cpp
@@ -89,7 +89,7 @@ static GlobalValue::LinkageTypes GetDecodedLinkage(unsigned Val) {
   case 12: return GlobalValue::AvailableExternallyLinkage;
   case 13: return GlobalValue::LinkerPrivateLinkage;
   case 14: return GlobalValue::LinkerPrivateWeakLinkage;
-  case 15: return GlobalValue::LinkerPrivateWeakDefAutoLinkage;
+  case 15: return GlobalValue::LinkOnceODRAutoHideLinkage;
   }
 }
 
diff --git a/lib/Bitcode/Writer/BitcodeWriter.cpp b/lib/Bitcode/Writer/BitcodeWriter.cpp
index 5b1725f550..1d2dfc3437 100644
--- a/lib/Bitcode/Writer/BitcodeWriter.cpp
+++ b/lib/Bitcode/Writer/BitcodeWriter.cpp
@@ -365,7 +365,7 @@ static unsigned getEncodedLinkage(const GlobalValue *GV) {
   case GlobalValue::AvailableExternallyLinkage:      return 12;
   case GlobalValue::LinkerPrivateLinkage:            return 13;
   case GlobalValue::LinkerPrivateWeakLinkage:        return 14;
-  case GlobalValue::LinkerPrivateWeakDefAutoLinkage: return 15;
+  case GlobalValue::LinkOnceODRAutoHideLinkage:      return 15;
   }
   llvm_unreachable("Invalid linkage");
 }
diff --git a/lib/CodeGen/AsmPrinter/AsmPrinter.cpp b/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
index d9be7a1a58..375bd7eb88 100644
--- a/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
+++ b/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
@@ -213,16 +213,16 @@ void AsmPrinter::EmitLinkage(unsigned Linkage, MCSymbol *GVSym) const {
   case GlobalValue::CommonLinkage:
   case GlobalValue::LinkOnceAnyLinkage:
   case GlobalValue::LinkOnceODRLinkage:
+  case GlobalValue::LinkOnceODRAutoHideLinkage:
   case GlobalValue::WeakAnyLinkage:
   case GlobalValue::WeakODRLinkage:
   case GlobalValue::LinkerPrivateWeakLinkage:
-  case GlobalValue::LinkerPrivateWeakDefAutoLinkage:
     if (MAI->getWeakDefDirective() != 0) {
       // .globl _foo
       OutStreamer.EmitSymbolAttribute(GVSym, MCSA_Global);
 
       if ((GlobalValue::LinkageTypes)Linkage !=
-          GlobalValue::LinkerPrivateWeakDefAutoLinkage)
+          GlobalValue::LinkOnceODRAutoHideLinkage)
         // .weak_definition _foo
         OutStreamer.EmitSymbolAttribute(GVSym, MCSA_WeakDefinition);
       else
diff --git a/lib/Target/CppBackend/CPPBackend.cpp b/lib/Target/CppBackend/CPPBackend.cpp
index c8e757becc..4ddcd38aca 100644
--- a/lib/Target/CppBackend/CPPBackend.cpp
+++ b/lib/Target/CppBackend/CPPBackend.cpp
@@ -285,14 +285,14 @@ void CppWriter::printLinkageType(GlobalValue::LinkageTypes LT) {
     Out << "GlobalValue::LinkerPrivateLinkage"; break;
   case GlobalValue::LinkerPrivateWeakLinkage:
     Out << "GlobalValue::LinkerPrivateWeakLinkage"; break;
-  case GlobalValue::LinkerPrivateWeakDefAutoLinkage:
-    Out << "GlobalValue::LinkerPrivateWeakDefAutoLinkage"; break;
   case GlobalValue::AvailableExternallyLinkage:
     Out << "GlobalValue::AvailableExternallyLinkage "; break;
   case GlobalValue::LinkOnceAnyLinkage:
     Out << "GlobalValue::LinkOnceAnyLinkage "; break;
   case GlobalValue::LinkOnceODRLinkage:
     Out << "GlobalValue::LinkOnceODRLinkage "; break;
+  case GlobalValue::LinkOnceODRAutoHideLinkage:
+    Out << "GlobalValue::LinkOnceODRAutoHideLinkage"; break;
   case GlobalValue::WeakAnyLinkage:
     Out << "GlobalValue::WeakAnyLinkage"; break;
   case GlobalValue::WeakODRLinkage:
diff --git a/lib/Target/Mangler.cpp b/lib/Target/Mangler.cpp
index 786a0c5ed1..05f6fa64b9 100644
--- a/lib/Target/Mangler.cpp
+++ b/lib/Target/Mangler.cpp
@@ -183,8 +183,7 @@ void Mangler::getNameWithPrefix(SmallVectorImpl<char> &OutName,
   ManglerPrefixTy PrefixTy = Mangler::Default;
   if (GV->hasPrivateLinkage() || isImplicitlyPrivate)
     PrefixTy = Mangler::Private;
-  else if (GV->hasLinkerPrivateLinkage() || GV->hasLinkerPrivateWeakLinkage() ||
-           GV->hasLinkerPrivateWeakDefAutoLinkage())
+  else if (GV->hasLinkerPrivateLinkage() || GV->hasLinkerPrivateWeakLinkage())
     PrefixTy = Mangler::LinkerPrivate;
   
   // If this global has a name, handle it simply.
diff --git a/lib/VMCore/AsmWriter.cpp b/lib/VMCore/AsmWriter.cpp
index 7ef1131de1..c09c69b6e8 100644
--- a/lib/VMCore/AsmWriter.cpp
+++ b/lib/VMCore/AsmWriter.cpp
@@ -1353,12 +1353,12 @@ static void PrintLinkage(GlobalValue::LinkageTypes LT,
   case GlobalValue::LinkerPrivateWeakLinkage:
     Out << "linker_private_weak ";
     break;
-  case GlobalValue::LinkerPrivateWeakDefAutoLinkage:
-    Out << "linker_private_weak_def_auto ";
-    break;
   case GlobalValue::InternalLinkage:      Out << "internal ";       break;
   case GlobalValue::LinkOnceAnyLinkage:   Out << "linkonce ";       break;
   case GlobalValue::LinkOnceODRLinkage:   Out << "linkonce_odr ";   break;
+  case GlobalValue::LinkOnceODRAutoHideLinkage:
+    Out << "linkonce_odr_auto_hide ";
+    break;
   case GlobalValue::WeakAnyLinkage:       Out << "weak ";           break;
   case GlobalValue::WeakODRLinkage:       Out << "weak_odr ";       break;
   case GlobalValue::CommonLinkage:        Out << "common ";         break;
diff --git a/lib/VMCore/Core.cpp b/lib/VMCore/Core.cpp
index 972db3cb86..a56f1b282b 100644
--- a/lib/VMCore/Core.cpp
+++ b/lib/VMCore/Core.cpp
@@ -1084,6 +1084,8 @@ LLVMLinkage LLVMGetLinkage(LLVMValueRef Global) {
     return LLVMLinkOnceAnyLinkage;
   case GlobalValue::LinkOnceODRLinkage:
     return LLVMLinkOnceODRLinkage;
+  case GlobalValue::LinkOnceODRAutoHideLinkage:
+    return LLVMLinkOnceODRAutoHideLinkage;
   case GlobalValue::WeakAnyLinkage:
     return LLVMWeakAnyLinkage;
   case GlobalValue::WeakODRLinkage:
@@ -1098,8 +1100,6 @@ LLVMLinkage LLVMGetLinkage(LLVMValueRef Global) {
     return LLVMLinkerPrivateLinkage;
   case GlobalValue::LinkerPrivateWeakLinkage:
     return LLVMLinkerPrivateWeakLinkage;
-  case GlobalValue::LinkerPrivateWeakDefAutoLinkage:
-    return LLVMLinkerPrivateWeakDefAutoLinkage;
   case GlobalValue::DLLImportLinkage:
     return LLVMDLLImportLinkage;
   case GlobalValue::DLLExportLinkage:
@@ -1129,6 +1129,9 @@ void LLVMSetLinkage(LLVMValueRef Global, LLVMLinkage Linkage) {
   case LLVMLinkOnceODRLinkage:
     GV->setLinkage(GlobalValue::LinkOnceODRLinkage);
     break;
+  case LLVMLinkOnceODRAutoHideLinkage:
+    GV->setLinkage(GlobalValue::LinkOnceODRAutoHideLinkage);
+    break;
   case LLVMWeakAnyLinkage:
     GV->setLinkage(GlobalValue::WeakAnyLinkage);
     break;
@@ -1150,9 +1153,6 @@ void LLVMSetLinkage(LLVMValueRef Global, LLVMLinkage Linkage) {
   case LLVMLinkerPrivateWeakLinkage:
     GV->setLinkage(GlobalValue::LinkerPrivateWeakLinkage);
     break;
-  case LLVMLinkerPrivateWeakDefAutoLinkage:
-    GV->setLinkage(GlobalValue::LinkerPrivateWeakDefAutoLinkage);
-    break;
   case LLVMDLLImportLinkage:
     GV->setLinkage(GlobalValue::DLLImportLinkage);
     break;
diff --git a/lib/VMCore/Verifier.cpp b/lib/VMCore/Verifier.cpp
index 7ff97c3479..970e9eb58d 100644
--- a/lib/VMCore/Verifier.cpp
+++ b/lib/VMCore/Verifier.cpp
@@ -400,8 +400,8 @@ void Verifier::visitGlobalValue(GlobalValue &GV) {
             "Only global arrays can have appending linkage!", GVar);
   }
 
-  Assert1(!GV.hasLinkerPrivateWeakDefAutoLinkage() || GV.hasDefaultVisibility(),
-          "linker_private_weak_def_auto can only have default visibility!",
+  Assert1(!GV.hasLinkOnceODRAutoHideLinkage() || GV.hasDefaultVisibility(),
+          "linkonce_odr_auto_hide can only have default visibility!",
           &GV);
 }
 
diff --git a/test/Feature/linker_private_linkages.ll b/test/Feature/linker_private_linkages.ll
index f9f2908756..19bcbb40aa 100644
--- a/test/Feature/linker_private_linkages.ll
+++ b/test/Feature/linker_private_linkages.ll
@@ -4,4 +4,3 @@
 
 @foo = linker_private hidden global i32 0
 @bar = linker_private_weak hidden global i32 0
-@qux = linker_private_weak_def_auto global i32 0
diff --git a/tools/llvm-nm/llvm-nm.cpp b/tools/llvm-nm/llvm-nm.cpp
index 9afbd4db90..eb52acc85d 100644
--- a/tools/llvm-nm/llvm-nm.cpp
+++ b/tools/llvm-nm/llvm-nm.cpp
@@ -256,7 +256,6 @@ static void DumpSymbolNameForGlobalValue(GlobalValue &GV) {
   if (GV.hasPrivateLinkage() ||
       GV.hasLinkerPrivateLinkage() ||
       GV.hasLinkerPrivateWeakLinkage() ||
-      GV.hasLinkerPrivateWeakDefAutoLinkage() ||
       GV.hasAvailableExternallyLinkage())
     return;
   char TypeChar = TypeCharForSymbol(GV);
diff --git a/tools/lto/LTOModule.cpp b/tools/lto/LTOModule.cpp
index c5b3d10db7..fa5f6b78db 100644
--- a/tools/lto/LTOModule.cpp
+++ b/tools/lto/LTOModule.cpp
@@ -487,8 +487,7 @@ void LTOModule::addDefinedSymbol(GlobalValue *def, bool isFunction) {
 
   // set definition part
   if (def->hasWeakLinkage() || def->hasLinkOnceLinkage() ||
-      def->hasLinkerPrivateWeakLinkage() ||
-      def->hasLinkerPrivateWeakDefAutoLinkage())
+      def->hasLinkerPrivateWeakLinkage())
     attr |= LTO_SYMBOL_DEFINITION_WEAK;
   else if (def->hasCommonLinkage())
     attr |= LTO_SYMBOL_DEFINITION_TENTATIVE;
@@ -504,7 +503,7 @@ void LTOModule::addDefinedSymbol(GlobalValue *def, bool isFunction) {
            def->hasLinkOnceLinkage() || def->hasCommonLinkage() ||
            def->hasLinkerPrivateWeakLinkage())
     attr |= LTO_SYMBOL_SCOPE_DEFAULT;
-  else if (def->hasLinkerPrivateWeakDefAutoLinkage())
+  else if (def->hasLinkOnceODRAutoHideLinkage())
     attr |= LTO_SYMBOL_SCOPE_DEFAULT_CAN_BE_HIDDEN;
   else
     attr |= LTO_SYMBOL_SCOPE_INTERNAL;