Check cyclic types after specialization. (#3791)

1 files changed, 24 insertions, 0 deletions

diff --git a/tests/bugs/cyclic-type-2.slang b/tests/bugs/cyclic-type-2.slang
new file mode 100644
index 000000000..b7e2aa448
--- /dev/null
+++ b/tests/bugs/cyclic-type-2.slang
@@ -0,0 +1,24 @@
+
+//TEST:SIMPLE(filecheck=CHECK):-target spirv -emit-spirv-directly
+
+// CHECK: error 41001:
+
+interface IFoo {}
+struct TA<T:IFoo> : IFoo
+{
+    TB<T> tb;
+}
+
+struct TB<T:IFoo>
+{
+    TA<T> ta[2];
+}
+
+struct TC : IFoo {}
+
+[numthreads(1,1,1)]
+void main()
+{
+    TA<TC> ta;
+    ta.tb.ta[0] = ta;
+}
\ No newline at end of file