Exit early from the simple form of Sema::RequireNonAbstractType(), for

a 2.47% speedup in 403.gcc.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@99830 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Sema/SemaDeclCXX.cpp

@@ -1939,6 +1939,9 @@ void Sema::ActOnDefaultCtorInitializers(DeclPtrTy CDtorDecl) {
 bool Sema::RequireNonAbstractType(SourceLocation Loc, QualType T,
                                   unsigned DiagID, AbstractDiagSelID SelID,
                                   const CXXRecordDecl *CurrentRD) {
+  if (!getLangOptions().CPlusPlus)
+    return false;
+
   if (SelID == -1)
     return RequireNonAbstractType(Loc, T,
                                   PDiag(DiagID), CurrentRD);