Allow conversion of qualified Class type to unqualified

Class type to match gcc's. Fixes radar 7789113.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@99425 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Sema/SemaExpr.cpp b/lib/Sema/SemaExpr.cpp
index 97f520d86f84686d1de987eb3aac5322671b8f55..9dddc2093afe255e11234a578d4139c94cfc0805 100644 (file)
--- a/lib/Sema/SemaExpr.cpp
+++ b/lib/Sema/SemaExpr.cpp
@@ -4594,13 +4594,15 @@ Sema::AssignConvertType
 Sema::CheckObjCPointerTypesForAssignment(QualType lhsType, QualType rhsType) {
   if (lhsType->isObjCBuiltinType()) {
     // Class is not compatible with ObjC object pointers.
-    if (lhsType->isObjCClassType() && !rhsType->isObjCBuiltinType())
+    if (lhsType->isObjCClassType() && !rhsType->isObjCBuiltinType() &&
+        !rhsType->isObjCQualifiedClassType())
       return IncompatiblePointer;
     return Compatible;
   }
   if (rhsType->isObjCBuiltinType()) {
     // Class is not compatible with ObjC object pointers.
-    if (rhsType->isObjCClassType() && !lhsType->isObjCBuiltinType())
+    if (rhsType->isObjCClassType() && !lhsType->isObjCBuiltinType() &&
+        !lhsType->isObjCQualifiedClassType())
       return IncompatiblePointer;
     return Compatible;
   }

diff --git a/test/SemaObjC/comptypes-7.m b/test/SemaObjC/comptypes-7.m
index fedad1bd81f9bf84a9937745e17ad8873be3925e..2519c41c829a1e8c9cab6f31d957a3520279675d 100644 (file)
--- a/test/SemaObjC/comptypes-7.m
+++ b/test/SemaObjC/comptypes-7.m
@@ -66,5 +66,10 @@ int main()
   if (obj_C == j) foo() ; // expected-warning {{comparison of distinct pointer types ('Class' and 'int *')}}
   if (j == obj_C) foo() ; // expected-warning {{comparison of distinct pointer types ('int *' and 'Class')}}
 
+  Class bar1 = Nil;
+  Class <MyProtocol> bar = Nil;
+  bar = bar1;
+  bar1 = bar;
+
   return 0;
 }