From 0c252fa8b751be50f8b53ffdc6563dca609870fc Mon Sep 17 00:00:00 2001
From: Fariborz Jahanian <fjahanian@apple.com>
Date: Thu, 13 Dec 2012 00:42:06 +0000
Subject: [PATCH] objc: DOn't complain if a (SEL) expression is typecast to
 (SEL). Fixes // rdar://12859590

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@170058 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Sema/SemaCast.cpp                 | 2 ++
 test/SemaObjC/warn-cast-of-sel-expr.m | 3 +++
 2 files changed, 5 insertions(+)

diff --git a/lib/Sema/SemaCast.cpp b/lib/Sema/SemaCast.cpp
index 6f3937353c..28b58279a5 100644
--- a/lib/Sema/SemaCast.cpp
+++ b/lib/Sema/SemaCast.cpp
@@ -1479,6 +1479,8 @@ void Sema::CheckCompatibleReinterpretCast(QualType SrcType, QualType DestType,
 static void DiagnoseCastOfObjCSEL(Sema &Self, const ExprResult &SrcExpr,
                                   QualType DestType) {
   QualType SrcType = SrcExpr.get()->getType();
+  if (Self.Context.hasSameType(SrcType, DestType))
+    return;
   if (const PointerType *SrcPtrTy = SrcType->getAs<PointerType>())
     if (SrcPtrTy->isObjCSelType()) {
       QualType DT = DestType;
diff --git a/test/SemaObjC/warn-cast-of-sel-expr.m b/test/SemaObjC/warn-cast-of-sel-expr.m
index 97915a0094..1253db95d5 100644
--- a/test/SemaObjC/warn-cast-of-sel-expr.m
+++ b/test/SemaObjC/warn-cast-of-sel-expr.m
@@ -18,4 +18,7 @@ int main() {
 (void *const)s; // ok
 
 (const void *const)s; // ok
+
+// rdar://12859590
+(SEL)sel_registerName("foo");  // ok
 }
-- 
2.50.1