diff --git a/clang/test/ASTMerge/Inputs/interface1.m b/clang/test/ASTMerge/Inputs/interface1.m
new file mode 100644
index 0000000..1aa1c3b
--- /dev/null
+++ b/clang/test/ASTMerge/Inputs/interface1.m
@@ -0,0 +1,7 @@
+// Matches
+@interface I1
+@end
+
+// Matches
+@interface I2 : I1
+@end
diff --git a/clang/test/ASTMerge/Inputs/interface2.m b/clang/test/ASTMerge/Inputs/interface2.m
new file mode 100644
index 0000000..1aa1c3b
--- /dev/null
+++ b/clang/test/ASTMerge/Inputs/interface2.m
@@ -0,0 +1,7 @@
+// Matches
+@interface I1
+@end
+
+// Matches
+@interface I2 : I1
+@end
diff --git a/clang/test/ASTMerge/interface.m b/clang/test/ASTMerge/interface.m
new file mode 100644
index 0000000..d6af2f4
--- /dev/null
+++ b/clang/test/ASTMerge/interface.m
@@ -0,0 +1,6 @@
+// RUN: %clang_cc1 -emit-pch -o %t.1.ast %S/Inputs/interface1.m
+// RUN: %clang_cc1 -emit-pch -o %t.2.ast %S/Inputs/interface2.m
+// RUN: %clang_cc1 -ast-merge %t.1.ast -ast-merge %t.2.ast -fsyntax-only %s 2>&1
+
+// FIXME: FileCheck!
+