Teach the ObjC mangler to ignore member pointers just like gcc does.

llvm-svn: 104001

clang/lib/AST/ASTContext.cpp

@@ -3715,6 +3715,11 @@ void ASTContext::getObjCEncodingForTypeImpl(QualType T, std::string& S,
     return;
   }
 
+  // gcc just blithely ignores member pointers.
+  // TODO: maybe there should be a mangling for these
+  if (T->getAs<MemberPointerType>())
+    return;
+
   assert(0 && "@encode for type not implemented!");
 }
 

clang/test/CodeGenObjCXX/encode.mm

@@ -2,7 +2,7 @@
 
 // CHECK: v17@0:8{vector<float, float, float>=}16
 // CHECK: {vector<float, float, float>=}
-
+// CHECK: v24@0:816
 
 template <typename T1, typename T2, typename T3> struct vector {
     vector(T1,T2,T3);
@@ -37,3 +37,15 @@ typedef vector< float, float, float > vector3f;
  [sn setPosition:VF3];
 }
 @end
+
+
+class Int3 { int x, y, z; };
+
+// Enforce @encoding for member pointers.
+@interface MemPtr {}
+- (void) foo: (int (Int3::*)) member;
+@end
+@implementation MemPtr
+- (void) foo: (int (Int3::*)) member {
+}
+@end