1 files changed, 18 insertions, 0 deletions
diff --git a/gcc/testsuite/g++.dg/parse/offsetof7.C b/gcc/testsuite/g++.dg/parse/offsetof7.C
new file mode 100644
index 000000000..113a79547
--- /dev/null
+++ b/gcc/testsuite/g++.dg/parse/offsetof7.C
@@ -0,0 +1,18 @@
+/* { dg-do compile } */
+
+// From PR28573
+
+struct A
+{
+   int operator [] ( int indx ) { return indx; }
+};
+
+struct B
+{
+   A a;
+};
+
+int main()
+{
+   return __builtin_offsetof(B, a[0]);  /* { dg-error "cannot apply.*offsetof" } */
+}