Add DWARF debug info support for C++11 inline namespaces.

This implements the DWARF 5 DW_AT_export_symbols feature:
http://dwarfstd.org/ShowIssue.php?issue=141212.1

<rdar://problem/18616046>

llvm-svn: 285959

1 files changed, 14 insertions, 6 deletions

diff --git a/llvm/unittests/IR/MetadataTest.cpp b/llvm/unittests/IR/MetadataTest.cpp
index 014a22cf64b..0a3442e6c19 100644
--- a/llvm/unittests/IR/MetadataTest.cpp
+++ b/llvm/unittests/IR/MetadataTest.cpp
@@ -1706,20 +1706,28 @@ TEST_F(DINamespaceTest, get) {
   DIFile *File = getFile();
   StringRef Name = "namespace";
   unsigned Line = 5;
+  bool ExportSymbols = true;
 
-  auto *N = DINamespace::get(Context, Scope, File, Name, Line);
+  auto *N = DINamespace::get(Context, Scope, File, Name, Line, ExportSymbols);
 
   EXPECT_EQ(dwarf::DW_TAG_namespace, N->getTag());
   EXPECT_EQ(Scope, N->getScope());
   EXPECT_EQ(File, N->getFile());
   EXPECT_EQ(Name, N->getName());
   EXPECT_EQ(Line, N->getLine());
-  EXPECT_EQ(N, DINamespace::get(Context, Scope, File, Name, Line));
+  EXPECT_EQ(N,
+    DINamespace::get(Context, Scope, File, Name, Line, ExportSymbols));
 
-  EXPECT_NE(N, DINamespace::get(Context, getFile(), File, Name, Line));
-  EXPECT_NE(N, DINamespace::get(Context, Scope, getFile(), Name, Line));
-  EXPECT_NE(N, DINamespace::get(Context, Scope, File, "other", Line));
-  EXPECT_NE(N, DINamespace::get(Context, Scope, File, Name, Line + 1));
+  EXPECT_NE(N,
+    DINamespace::get(Context, getFile(), File, Name, Line, ExportSymbols));
+  EXPECT_NE(N,
+    DINamespace::get(Context, Scope, getFile(), Name, Line, ExportSymbols));
+  EXPECT_NE(N,
+    DINamespace::get(Context, Scope, File, "other", Line, ExportSymbols));
+  EXPECT_NE(N,
+    DINamespace::get(Context, Scope, File, Name, Line + 1, ExportSymbols));
+  EXPECT_NE(N,
+    DINamespace::get(Context, Scope, File, Name, Line, !ExportSymbols));
 
   TempDINamespace Temp = N->clone();
   EXPECT_EQ(N, MDNode::replaceWithUniqued(std::move(Temp)));