Check for cylic types. (#3790)

1 files changed, 21 insertions, 0 deletions

diff --git a/tests/bugs/cyclic-type.slang b/tests/bugs/cyclic-type.slang
new file mode 100644
index 000000000..49591fbe6
--- /dev/null
+++ b/tests/bugs/cyclic-type.slang
@@ -0,0 +1,21 @@
+
+//TEST:SIMPLE(filecheck=CHECK):-target spirv -emit-spirv-directly
+
+// CHECK: error 41001:
+
+struct TA
+{
+    TB tb;
+}
+
+struct TB
+{
+    TA ta[2];
+}
+
+[numthreads(1,1,1)]
+void main()
+{
+    TA ta;
+    ta.tb.ta[0] = ta;
+}
\ No newline at end of file