Fix up various builtin declaration of objc_msgSend families
to match those foung in objc.h an avoid spurious warnings.
// rdar://12489098
llvm-svn: 171492
diff --git a/clang/lib/Sema/SemaDecl.cpp b/clang/lib/Sema/SemaDecl.cpp
index 61791b2..3bbb9a4 100644
--- a/clang/lib/Sema/SemaDecl.cpp
+++ b/clang/lib/Sema/SemaDecl.cpp
@@ -1464,6 +1464,24 @@
return S;
}
+/// \brief Looks up the declaration of "struct objc_super" and
+/// saves it for later use in building builtin declaration of
+/// objc_msgSendSuper and objc_msgSendSuper_stret. If no such
+/// pre-existing declaration exists no action takes place.
+static void LookupPredefedObjCSuperType(Sema &ThisSema, Scope *S,
+ IdentifierInfo *II) {
+ if (!II->isStr("objc_msgSendSuper"))
+ return;
+ ASTContext &Context = ThisSema.Context;
+
+ LookupResult Result(ThisSema, &Context.Idents.get("objc_super"),
+ SourceLocation(), Sema::LookupTagName);
+ ThisSema.LookupName(Result, S);
+ if (Result.getResultKind() == LookupResult::Found)
+ if (const TagDecl *TD = Result.getAsSingle<TagDecl>())
+ Context.setObjCSuperType(Context.getTagDeclType(TD));
+}
+
/// LazilyCreateBuiltin - The specified Builtin-ID was first used at
/// file scope. lazily create a decl for it. ForRedeclaration is true
/// if we're creating this built-in in anticipation of redeclaring the
@@ -1471,6 +1489,8 @@
NamedDecl *Sema::LazilyCreateBuiltin(IdentifierInfo *II, unsigned bid,
Scope *S, bool ForRedeclaration,
SourceLocation Loc) {
+ LookupPredefedObjCSuperType(*this, S, II);
+
Builtin::ID BID = (Builtin::ID)bid;
ASTContext::GetBuiltinTypeError Error;