1 files changed, 31 insertions, 0 deletions
diff --git a/clang/test/Sema/incomplete-decl.c b/clang/test/Sema/incomplete-decl.c
new file mode 100644
index 0000000..0214a0c
--- /dev/null
+++ b/clang/test/Sema/incomplete-decl.c
@@ -0,0 +1,31 @@
+// RUN: %clang_cc1 -fsyntax-only -verify %s
+
+struct foo; // expected-note 5 {{forward declaration of 'struct foo'}}
+
+void b;  // expected-error {{variable has incomplete type 'void'}}
+struct foo f; // expected-error{{tentative definition has type 'struct foo' that is never completed}}
+
+static void c; // expected-error {{variable has incomplete type 'void'}}
+static struct foo g;  // expected-warning {{tentative definition of variable with internal linkage has incomplete non-array type 'struct foo'}} \
+    expected-error{{tentative definition has type 'struct foo' that is never completed}}
+
+extern void d;
+extern struct foo e;
+
+int ary[]; // expected-warning {{tentative array definition assumed to have one element}}
+struct foo bary[]; // expected-error {{array has incomplete element type 'struct foo'}}
+
+void func() {
+  int ary[]; // expected-error{{definition of variable with array type needs an explicit size or an initializer}}
+  void b; // expected-error {{variable has incomplete type 'void'}}
+  struct foo f; // expected-error {{variable has incomplete type 'struct foo'}}
+}
+
+int h[]; // expected-warning {{tentative array definition assumed to have one element}}
+int (*i)[] = &h+1; // expected-error {{arithmetic on a pointer to an incomplete type 'int []'}}
+
+struct bar j = {1}; // expected-error {{variable has incomplete type 'struct bar'}} \
+    expected-note {{forward declaration of 'struct bar'}}
+struct bar k;
+struct bar { int a; };
+