Remove the one-definition-rule version of extern_weak
linkage: this linkage type only applies to declarations,
but ODR is only relevant to globals with definitions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66650 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/AsmParser/LLLexer.cpp b/lib/AsmParser/LLLexer.cpp
index 6f1d5ee..d25b001 100644
--- a/lib/AsmParser/LLLexer.cpp
+++ b/lib/AsmParser/LLLexer.cpp
@@ -468,7 +468,6 @@
   KEYWORD(hidden);
   KEYWORD(protected);
   KEYWORD(extern_weak);
-  KEYWORD(extern_weak_odr);
   KEYWORD(external);
   KEYWORD(thread_local);
   KEYWORD(zeroinitializer);
diff --git a/lib/AsmParser/LLParser.cpp b/lib/AsmParser/LLParser.cpp
index cb9eb6a..c13c7fc 100644
--- a/lib/AsmParser/LLParser.cpp
+++ b/lib/AsmParser/LLParser.cpp
@@ -125,7 +125,6 @@
     case lltok::kw_common_odr:    // OptionalLinkage
     case lltok::kw_dllimport:     // OptionalLinkage
     case lltok::kw_extern_weak:   // OptionalLinkage
-    case lltok::kw_extern_weak_odr: // OptionalLinkage
     case lltok::kw_external: {    // OptionalLinkage
       unsigned Linkage, Visibility;
       if (ParseOptionalLinkage(Linkage) ||
@@ -458,8 +457,7 @@
   // present.
   Constant *Init = 0;
   if (!HasLinkage || (Linkage != GlobalValue::DLLImportLinkage &&
-                      Linkage != GlobalValue::ExternalWeakAnyLinkage &&
-                      Linkage != GlobalValue::ExternalWeakODRLinkage &&
+                      Linkage != GlobalValue::ExternalWeakLinkage &&
                       Linkage != GlobalValue::ExternalLinkage)) {
     if (ParseGlobalValue(Ty, Init))
       return true;
@@ -574,10 +572,10 @@
       return 0;
     }
     
-    FwdVal = Function::Create(FT, GlobalValue::ExternalWeakAnyLinkage, Name, M);
+    FwdVal = Function::Create(FT, GlobalValue::ExternalWeakLinkage, Name, M);
   } else {
     FwdVal = new GlobalVariable(PTy->getElementType(), false,
-                                GlobalValue::ExternalWeakAnyLinkage, 0, Name, M);
+                                GlobalValue::ExternalWeakLinkage, 0, Name, M);
   }
   
   ForwardRefVals[Name] = std::make_pair(FwdVal, Loc);
@@ -618,10 +616,10 @@
       Error(Loc, "function may not return opaque type");
       return 0;
     }
-    FwdVal = Function::Create(FT, GlobalValue::ExternalWeakAnyLinkage, "", M);
+    FwdVal = Function::Create(FT, GlobalValue::ExternalWeakLinkage, "", M);
   } else {
     FwdVal = new GlobalVariable(PTy->getElementType(), false,
-                                GlobalValue::ExternalWeakAnyLinkage, 0, "", M);
+                                GlobalValue::ExternalWeakLinkage, 0, "", M);
   }
   
   ForwardRefValIDs[ID] = std::make_pair(FwdVal, Loc);
@@ -753,7 +751,6 @@
 ///   ::= 'common_odr'
 ///   ::= 'dllimport'
 ///   ::= 'extern_weak'
-///   ::= 'extern_weak_odr'
 ///   ::= 'external'
 bool LLParser::ParseOptionalLinkage(unsigned &Res, bool &HasLinkage) {
   HasLinkage = false;
@@ -770,9 +767,7 @@
   case lltok::kw_common:       Res = GlobalValue::CommonAnyLinkage; break;
   case lltok::kw_common_odr:   Res = GlobalValue::CommonODRLinkage; break;
   case lltok::kw_dllimport:    Res = GlobalValue::DLLImportLinkage; break;
-  case lltok::kw_extern_weak:  Res = GlobalValue::ExternalWeakAnyLinkage; break;
-  case lltok::kw_extern_weak_odr:
-                               Res = GlobalValue::ExternalWeakODRLinkage; break;
+  case lltok::kw_extern_weak:  Res = GlobalValue::ExternalWeakLinkage; break;
   case lltok::kw_external:     Res = GlobalValue::ExternalLinkage; break;
   }
   Lex.Lex();
@@ -2103,8 +2098,7 @@
   case GlobalValue::ExternalLinkage:
     break; // always ok.
   case GlobalValue::DLLImportLinkage:
-  case GlobalValue::ExternalWeakAnyLinkage:
-  case GlobalValue::ExternalWeakODRLinkage:
+  case GlobalValue::ExternalWeakLinkage:
     if (isDefine)
       return Error(LinkageLoc, "invalid linkage for function definition");
     break;
diff --git a/lib/AsmParser/LLToken.h b/lib/AsmParser/LLToken.h
index efdc77a..35a1bc3 100644
--- a/lib/AsmParser/LLToken.h
+++ b/lib/AsmParser/LLToken.h
@@ -39,7 +39,7 @@
     kw_private, kw_internal, kw_linkonce, kw_linkonce_odr, kw_weak, kw_weak_odr,
     kw_appending, kw_dllimport, kw_dllexport, kw_common, kw_common_odr,
     kw_default, kw_hidden, kw_protected,
-    kw_extern_weak, kw_extern_weak_odr,
+    kw_extern_weak,
     kw_external, kw_thread_local,
     kw_zeroinitializer,
     kw_undef, kw_null,
diff --git a/lib/Bitcode/Reader/BitcodeReader.cpp b/lib/Bitcode/Reader/BitcodeReader.cpp
index 0fe6fc6..abf1db2 100644
--- a/lib/Bitcode/Reader/BitcodeReader.cpp
+++ b/lib/Bitcode/Reader/BitcodeReader.cpp
@@ -65,12 +65,11 @@
   case 4: return GlobalValue::LinkOnceAnyLinkage;
   case 5: return GlobalValue::DLLImportLinkage;
   case 6: return GlobalValue::DLLExportLinkage;
-  case 7: return GlobalValue::ExternalWeakAnyLinkage;
+  case 7: return GlobalValue::ExternalWeakLinkage;
   case 8: return GlobalValue::CommonAnyLinkage;
   case 9: return GlobalValue::PrivateLinkage;
   case 10: return GlobalValue::WeakODRLinkage;
   case 11: return GlobalValue::LinkOnceODRLinkage;
-  case 12: return GlobalValue::ExternalWeakODRLinkage;
   case 13: return GlobalValue::CommonODRLinkage;
   }
 }
diff --git a/lib/Bitcode/Writer/BitcodeWriter.cpp b/lib/Bitcode/Writer/BitcodeWriter.cpp
index fefffbe..940647f 100644
--- a/lib/Bitcode/Writer/BitcodeWriter.cpp
+++ b/lib/Bitcode/Writer/BitcodeWriter.cpp
@@ -282,12 +282,11 @@
   case GlobalValue::LinkOnceAnyLinkage:  return 4;
   case GlobalValue::DLLImportLinkage:    return 5;
   case GlobalValue::DLLExportLinkage:    return 6;
-  case GlobalValue::ExternalWeakAnyLinkage: return 7;
+  case GlobalValue::ExternalWeakLinkage: return 7;
   case GlobalValue::CommonAnyLinkage:    return 8;
   case GlobalValue::PrivateLinkage:      return 9;
   case GlobalValue::WeakODRLinkage:      return 10;
   case GlobalValue::LinkOnceODRLinkage:  return 11;
-  case GlobalValue::ExternalWeakODRLinkage: return 12;
   case GlobalValue::CommonODRLinkage:    return 13;
   }
 }
diff --git a/lib/Target/CppBackend/CPPBackend.cpp b/lib/Target/CppBackend/CPPBackend.cpp
index 48cf495..52646f0 100644
--- a/lib/Target/CppBackend/CPPBackend.cpp
+++ b/lib/Target/CppBackend/CPPBackend.cpp
@@ -310,10 +310,8 @@
       Out << "GlobalValue::DLLImportLinkage"; break;
     case GlobalValue::DLLExportLinkage:
       Out << "GlobalValue::DLLExportLinkage"; break;
-    case GlobalValue::ExternalWeakAnyLinkage:
-      Out << "GlobalValue::ExternalWeakAnyLinkage"; break;
-    case GlobalValue::ExternalWeakODRLinkage:
-      Out << "GlobalValue::ExternalWeakODRLinkage"; break;
+    case GlobalValue::ExternalWeakLinkage:
+      Out << "GlobalValue::ExternalWeakLinkage"; break;
     case GlobalValue::GhostLinkage:
       Out << "GlobalValue::GhostLinkage"; break;
     case GlobalValue::CommonAnyLinkage:
diff --git a/lib/Target/XCore/XCoreAsmPrinter.cpp b/lib/Target/XCore/XCoreAsmPrinter.cpp
index 6026e12..67121a7 100644
--- a/lib/Target/XCore/XCoreAsmPrinter.cpp
+++ b/lib/Target/XCore/XCoreAsmPrinter.cpp
@@ -438,8 +438,7 @@
       switch (I->getLinkage()) {
       default:
         assert(0 && "Unexpected linkage");
-      case Function::ExternalWeakAnyLinkage:
-      case Function::ExternalWeakODRLinkage:
+      case Function::ExternalWeakLinkage:
         ExtWeakSymbols.insert(I);
         // fallthrough
       case Function::ExternalLinkage:
diff --git a/lib/VMCore/AsmWriter.cpp b/lib/VMCore/AsmWriter.cpp
index 12a8ed6..b72defb 100644
--- a/lib/VMCore/AsmWriter.cpp
+++ b/lib/VMCore/AsmWriter.cpp
@@ -1194,8 +1194,7 @@
   case GlobalValue::AppendingLinkage:   Out << "appending "; break;
   case GlobalValue::DLLImportLinkage:   Out << "dllimport "; break;
   case GlobalValue::DLLExportLinkage:   Out << "dllexport "; break;
-  case GlobalValue::ExternalWeakAnyLinkage: Out << "extern_weak "; break;
-  case GlobalValue::ExternalWeakODRLinkage: Out << "extern_weak_odr "; break;
+  case GlobalValue::ExternalWeakLinkage: Out << "extern_weak "; break;
   case GlobalValue::ExternalLinkage: break;
   case GlobalValue::GhostLinkage:
     Out << "GhostLinkage not allowed in AsmWriter!\n";