diff --git a/implementation-contributed/javascriptcore/stress/regress-189185.js b/implementation-contributed/javascriptcore/stress/regress-189185.js
index d67f9d41b2..c016efd268 100644
--- a/implementation-contributed/javascriptcore/stress/regress-189185.js
+++ b/implementation-contributed/javascriptcore/stress/regress-189185.js
@@ -1,4 +1,5 @@
 //@ runDefault
+//@ skip if $architecture == "x86"
 // This passes if it does not crash.
 new WebAssembly.CompileError({
     valueOf() {
diff --git a/implementation-contributed/javascriptcore/stress/regress-189292.js b/implementation-contributed/javascriptcore/stress/regress-189292.js
new file mode 100644
index 0000000000..4314f9abe3
--- /dev/null
+++ b/implementation-contributed/javascriptcore/stress/regress-189292.js
@@ -0,0 +1,18 @@
+//@ runDefault
+
+function assert(a, b) {
+    if (a != b)
+        throw "FAIL";
+}
+
+function test(script) {
+    try {
+        eval(script);
+    } catch (e) {
+        return e;
+    }
+}
+
+assert(test("class C1 { async constructor() { } }"), "SyntaxError: Cannot declare an async method named 'constructor'.");
+assert(test("class C1 { *constructor() { } }"), "SyntaxError: Cannot declare a generator function named 'constructor'.");
+assert(test("class C1 { async *constructor() { } }"), "SyntaxError: Cannot declare an async generator method named 'constructor'.");