1 files changed, 31 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/wasm/regress/jit-updatepcquad.js b/js/src/jit-test/tests/wasm/regress/jit-updatepcquad.js
new file mode 100644
index 0000000000..69f9371b84
--- /dev/null
+++ b/js/src/jit-test/tests/wasm/regress/jit-updatepcquad.js
@@ -0,0 +1,31 @@
+var evalInFrame = (function (global) {
+    var dbgGlobal = newGlobal({newCompartment: true});
+    var dbg = new dbgGlobal.Debugger();
+    return function evalInFrame(code) {
+        dbg.addDebuggee(global);
+        var frame = dbg.getNewestFrame().older;
+        frame = frame.older || frame;
+        let completion = frame.eval(code);
+        return completion.return;
+    };
+})(this);
+
+const { exports } = wasmEvalText(`
+    (module
+        (import "global" "func" (func (param i32) (result i32)))
+        (func (export "func_0") (param i32)(result i32)
+         local.get 0
+         call 0
+        )
+    )
+`, {
+    global: {
+        func: function jscode(i) {
+            return evalInFrame(`a = ${i}`);
+        }
+    }
+});
+
+for (i = 0; i < 20; ++i) {
+    assertEq(exports.func_0(i), i);
+}