1 files changed, 13 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/wasm/gc/limits/subtyping-depth.js b/js/src/jit-test/tests/wasm/gc/limits/subtyping-depth.js
new file mode 100644
index 0000000000..2d70215ee9
--- /dev/null
+++ b/js/src/jit-test/tests/wasm/gc/limits/subtyping-depth.js
@@ -0,0 +1,13 @@
+// |jit-test| --setpref=wasm_gc; include:wasm.js; include: wasm-binary.js;
+
+// Limit of subtyping hierarchy 63 deep
+function moduleSubtypingDepth(depth) {
+  let types = [];
+  types.push({final: false, kind: FuncCode, args: [], ret: []});
+  for (let i = 1; i <= depth; i++) {
+    types.push({final: false, sub: i - 1, kind: FuncCode, args: [], ret: []});
+  }
+  return moduleWithSections([typeSection(types)]);
+}
+wasmValidateBinary(moduleSubtypingDepth(63));
+wasmFailValidateBinary(moduleSubtypingDepth(64), /too deep/);