Objective-C. Warn when @encode'ing provides an incomplete

type encoding because in certain cases, such as for vector
types, because we still haven't designed encoding for them.
rdar://9255564

llvm-svn: 216301

1 files changed, 19 insertions, 0 deletions

diff --git a/clang/test/SemaObjC/encode-typeof-test.m b/clang/test/SemaObjC/encode-typeof-test.m
index 2cda9739681..fe8f29c3b97 100644
--- a/clang/test/SemaObjC/encode-typeof-test.m
+++ b/clang/test/SemaObjC/encode-typeof-test.m
@@ -24,3 +24,22 @@ int main()
     int i;
     typeof(@encode(typeof(i))) e = @encode(typeof(Intf)); // expected-warning {{initializer-string for char array is too long}}
 }
+
+// rdar://9255564
+typedef short short8 __attribute__((ext_vector_type(8)));
+
+struct foo {
+ char a;
+ int b;
+ long c;
+ short8 d;
+ int array[4];
+ short int bitfield1:5;
+ unsigned short bitfield2:11;
+ char *string;
+};
+
+const char *RetEncode () {
+ return @encode(struct foo); // expected-warning {{encoding of 'struct foo' type is incomplete because 'short8' (vector of 8 'short' values) component has unknown encoding}}
+}
+