1 files changed, 48 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/debug/wasm-onExceptionUnwind-gc.js b/js/src/jit-test/tests/debug/wasm-onExceptionUnwind-gc.js
new file mode 100644
index 0000000000..5f4b4942af
--- /dev/null
+++ b/js/src/jit-test/tests/debug/wasm-onExceptionUnwind-gc.js
@@ -0,0 +1,48 @@
+// |jit-test| skip-if: !wasmDebuggingEnabled()
+
+var sandbox = newGlobal({newCompartment: true});
+var dbg = new Debugger(sandbox);
+var counter = 0;
+dbg.onExceptionUnwind = (frame, value) => {
+    if (frame.type !== "wasmcall")
+        return;
+    if (++counter != 2)
+        return;
+    gc();
+};
+
+sandbox.innerCode = wasmTextToBinary(`(module
+    (import "imports" "tbl" (table 1 anyfunc))
+    (import "imports" "setNull" (func $setNull))
+    (func $trap
+        call $setNull
+        unreachable
+    )
+    (elem (i32.const 0) $trap)
+)`);
+sandbox.outerCode = wasmTextToBinary(`(module
+    (import "imports" "tbl" (table 1 anyfunc))
+    (type $v2v (func))
+    (func (export "run")
+        i32.const 0
+        call_indirect (type $v2v)
+    )
+)`);
+
+sandbox.eval(`
+(function() {
+
+var tbl = new WebAssembly.Table({initial:1, element:"anyfunc"});
+function setNull() { tbl.set(0, null) }
+new WebAssembly.Instance(new WebAssembly.Module(innerCode), {imports:{tbl,setNull}});
+var outer = new WebAssembly.Instance(new WebAssembly.Module(outerCode), {imports:{tbl}});
+var caught;
+try {
+    outer.exports.run();
+} catch (e) {
+    caught = e;
+}
+assertEq(caught instanceof WebAssembly.RuntimeError, true);
+
+})();
+`);