1 files changed, 11 insertions, 0 deletions
diff --git a/Source/Checks/cm_cxx_gnu_fallthrough.cxx b/Source/Checks/cm_cxx_gnu_fallthrough.cxx
new file mode 100644
index 0000000000..6021094053
--- /dev/null
+++ b/Source/Checks/cm_cxx_gnu_fallthrough.cxx
@@ -0,0 +1,11 @@
+int main(int argc, char* argv[])
+{
+  int i = 3;
+  switch (argc) {
+    case 1:
+      i = 0;
+      [[gnu::fallthrough]];
+    default:
+      return i;
+  }
+}