SouraVX updated this revision to Diff 220435.

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D67613/new/

https://reviews.llvm.org/D67613

Files:
  include/clang/AST/DeclCXX.h
  lib/AST/DeclPrinter.cpp
  lib/AST/JSONNodeDumper.cpp
  lib/AST/TextNodeDumper.cpp
  lib/CodeGen/CGDebugInfo.cpp
  lib/CodeGen/CodeGenModule.cpp
  lib/Sema/SemaDeclCXX.cpp
  lib/Sema/SemaModule.cpp
  test/Modules/ModuleDebugInfo.cpp

Index: test/Modules/ModuleDebugInfo.cpp
===================================================================
--- test/Modules/ModuleDebugInfo.cpp
+++ test/Modules/ModuleDebugInfo.cpp
@@ -12,7 +12,7 @@
 
 // PCH:
 // RUN: %clang_cc1 -triple %itanium_abi_triple -x c++ -std=c++11  -debugger-tuning=lldb -emit-pch -fmodule-format=obj -I %S/Inputs -o %t.pch %S/Inputs/DebugCXX.h -mllvm -debug-only=pchcontainer &>%t-pch.ll
-// RUN: cat %t-pch.ll | FileCheck %s
+// RUN: cat %t-pch.ll | FileCheck --check-prefix=CHECK-CXX %s
 // RUN: cat %t-pch.ll | FileCheck --check-prefix=CHECK-NEG %s
 
 #ifdef MODULES
@@ -23,6 +23,7 @@
 // CHECK-MOD: distinct !DICompileUnit(language: DW_LANG_{{.*}}C_plus_plus,
 
 // CHECK: distinct !DICompileUnit(language: DW_LANG_{{.*}}C_plus_plus,
+// CHECK-CXX: distinct !DICompileUnit(language: DW_LANG_C_plus_plus_11,
 // CHECK-SAME:                    isOptimized: false,
 // CHECK-NOT:                     splitDebugFilename:
 // CHECK-SAME:                    dwoId:
Index: lib/Sema/SemaModule.cpp
===================================================================
--- lib/Sema/SemaModule.cpp
+++ lib/Sema/SemaModule.cpp
@@ -31,6 +31,8 @@
         ExternCLoc = LSD->getBeginLoc();
       break;
     case LinkageSpecDecl::lang_cxx:
+    case LinkageSpecDecl::lang_cxx_11:
+    case LinkageSpecDecl::lang_cxx_14:
       break;
     }
     DC = LSD->getParent();
Index: lib/Sema/SemaDeclCXX.cpp
===================================================================
--- lib/Sema/SemaDeclCXX.cpp
+++ lib/Sema/SemaDeclCXX.cpp
@@ -13911,6 +13911,10 @@
     Language = LinkageSpecDecl::lang_c;
   else if (Lang == "C++")
     Language = LinkageSpecDecl::lang_cxx;
+  else if (Lang == "C++11")
+    Language = LinkageSpecDecl::lang_cxx_11;
+  else if (Lang == "C++14")
+    Language = LinkageSpecDecl::lang_cxx_14;
   else {
     Diag(LangStr->getExprLoc(), diag::err_language_linkage_spec_unknown)
       << LangStr->getSourceRange();
Index: lib/CodeGen/CodeGenModule.cpp
===================================================================
--- lib/CodeGen/CodeGenModule.cpp
+++ lib/CodeGen/CodeGenModule.cpp
@@ -5132,7 +5132,9 @@
 // EmitLinkageSpec - Emit all declarations in a linkage spec.
 void CodeGenModule::EmitLinkageSpec(const LinkageSpecDecl *LSD) {
   if (LSD->getLanguage() != LinkageSpecDecl::lang_c &&
-      LSD->getLanguage() != LinkageSpecDecl::lang_cxx) {
+      LSD->getLanguage() != LinkageSpecDecl::lang_cxx &&
+      LSD->getLanguage() != LinkageSpecDecl::lang_cxx_11 &&
+      LSD->getLanguage() != LinkageSpecDecl::lang_cxx_14) {
     ErrorUnsupported(LSD, "linkage spec");
     return;
   }
Index: lib/CodeGen/CGDebugInfo.cpp
===================================================================
--- lib/CodeGen/CGDebugInfo.cpp
+++ lib/CodeGen/CGDebugInfo.cpp
@@ -561,6 +561,10 @@
   if (LO.CPlusPlus) {
     if (LO.ObjC)
       LangTag = llvm::dwarf::DW_LANG_ObjC_plus_plus;
+    else if (LO.CPlusPlus14)
+      LangTag = llvm::dwarf::DW_LANG_C_plus_plus_14;
+    else if (LO.CPlusPlus11)
+      LangTag = llvm::dwarf::DW_LANG_C_plus_plus_11;
     else
       LangTag = llvm::dwarf::DW_LANG_C_plus_plus;
   } else if (LO.ObjC) {
@@ -878,6 +882,8 @@
 static bool hasCXXMangling(const TagDecl *TD, llvm::DICompileUnit *TheCU) {
   switch (TheCU->getSourceLanguage()) {
   case llvm::dwarf::DW_LANG_C_plus_plus:
+  case llvm::dwarf::DW_LANG_C_plus_plus_11:
+  case llvm::dwarf::DW_LANG_C_plus_plus_14:
     return true;
   case llvm::dwarf::DW_LANG_ObjC_plus_plus:
     return isa<CXXRecordDecl>(TD) || isa<EnumDecl>(TD);
Index: lib/AST/TextNodeDumper.cpp
===================================================================
--- lib/AST/TextNodeDumper.cpp
+++ lib/AST/TextNodeDumper.cpp
@@ -1767,6 +1767,12 @@
   case LinkageSpecDecl::lang_cxx:
     OS << " C++";
     break;
+  case LinkageSpecDecl::lang_cxx_11:
+    OS << " C++11";
+    break;
+  case LinkageSpecDecl::lang_cxx_14:
+    OS << " C++14";
+    break;
   }
 }
 
Index: lib/AST/JSONNodeDumper.cpp
===================================================================
--- lib/AST/JSONNodeDumper.cpp
+++ lib/AST/JSONNodeDumper.cpp
@@ -850,6 +850,12 @@
   switch (LSD->getLanguage()) {
   case LinkageSpecDecl::lang_c: Lang = "C"; break;
   case LinkageSpecDecl::lang_cxx: Lang = "C++"; break;
+  case LinkageSpecDecl::lang_cxx_11:
+    Lang = "C++_11";
+    break;
+  case LinkageSpecDecl::lang_cxx_14:
+    Lang = "C++_14";
+    break;
   }
   JOS.attribute("language", Lang);
   attributeOnlyIfTrue("hasBraces", LSD->hasBraces());
Index: lib/AST/DeclPrinter.cpp
===================================================================
--- lib/AST/DeclPrinter.cpp
+++ lib/AST/DeclPrinter.cpp
@@ -1001,12 +1001,22 @@
 
 void DeclPrinter::VisitLinkageSpecDecl(LinkageSpecDecl *D) {
   const char *l;
-  if (D->getLanguage() == LinkageSpecDecl::lang_c)
-    l = "C";
-  else {
-    assert(D->getLanguage() == LinkageSpecDecl::lang_cxx &&
-           "unknown language in linkage specification");
-    l = "C++";
+  switch(D->getLanguage()) {
+     case LinkageSpecDecl::lang_c:
+       l = "C";
+       break;
+     case LinkageSpecDecl::lang_cxx_14:
+       l = "C++14";
+       break;
+     case LinkageSpecDecl::lang_cxx_11:
+       l = "C++11";
+       break;
+     case LinkageSpecDecl::lang_cxx:
+       l = "C++";
+       break;
+     default:
+       llvm_unreachable("Unknown language in linkage specification");
+       break;
   }
 
   Out << "extern \"" << l << "\" ";
Index: include/clang/AST/DeclCXX.h
===================================================================
--- include/clang/AST/DeclCXX.h
+++ include/clang/AST/DeclCXX.h
@@ -2926,7 +2926,9 @@
   /// from the dwarf standard.
   enum LanguageIDs {
     lang_c = /* DW_LANG_C */ 0x0002,
-    lang_cxx = /* DW_LANG_C_plus_plus */ 0x0004
+    lang_cxx = /* DW_LANG_C_plus_plus */ 0x0004,
+    lang_cxx_11 = /* DW_LANG_C_plus_plus_11 */ 0x001a,
+    lang_cxx_14 = /* DW_LANG_C_plus_plus_14 */ 0x0021
   };
 
 private:
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