Support accepting __gnu__ as a scoped attribute namespace that aliases to gnu.

This is useful in libstdc++ to avoid clashes with identifiers in the user's namespace.

llvm-svn: 345132

1 files changed, 8 insertions, 10 deletions

diff --git a/clang/lib/Sema/SemaDeclAttr.cpp b/clang/lib/Sema/SemaDeclAttr.cpp
index c0fb3356bae..a0faf840958 100644
--- a/clang/lib/Sema/SemaDeclAttr.cpp
+++ b/clang/lib/Sema/SemaDeclAttr.cpp
@@ -5831,16 +5831,14 @@ static void handleDeprecatedAttr(Sema &S, Decl *D, const ParsedAttr &AL) {
   if (AL.isDeclspecAttribute() || AL.isCXX11Attribute())
     checkAttributeAtMostNumArgs(S, AL, 1);
   else if (AL.isArgExpr(1) && AL.getArgAsExpr(1) &&
-           !S.checkStringLiteralArgumentAttr(AL, 1, Replacement))
-    return;
-
-  if (!S.getLangOpts().CPlusPlus14)
-    if (AL.isCXX11Attribute() &&
-        !(AL.hasScope() && AL.getScopeName()->isStr("gnu")))
-      S.Diag(AL.getLoc(), diag::ext_cxx14_attr) << AL;
-
-  D->addAttr(::new (S.Context)
-                 DeprecatedAttr(AL.getRange(), S.Context, Str, Replacement,
+           !S.checkStringLiteralArgumentAttr(AL, 1, Replacement))

+    return;

+

+  if (!S.getLangOpts().CPlusPlus14 && AL.isCXX11Attribute() && !AL.isGNUScope())

+    S.Diag(AL.getLoc(), diag::ext_cxx14_attr) << AL;

+

+  D->addAttr(::new (S.Context)

+                 DeprecatedAttr(AL.getRange(), S.Context, Str, Replacement,

                                 AL.getAttributeSpellingListIndex()));
 }