1 files changed, 28 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/wasm/regress/bug1839065.js b/js/src/jit-test/tests/wasm/regress/bug1839065.js
new file mode 100644
index 0000000000..ecc4c1b90c
--- /dev/null
+++ b/js/src/jit-test/tests/wasm/regress/bug1839065.js
@@ -0,0 +1,28 @@
+// |jit-test| --wasm-gc; --wasm-function-references; skip-if: !wasmGcEnabled() || !wasmFunctionReferencesEnabled()
+function wasmEvalText(str, imports) {
+    let binary = wasmTextToBinary(str);
+    m = new WebAssembly.Module(binary);
+    return new WebAssembly.Instance(m, imports);
+}
+let { newElem, f1, f2, f3, f4 } = wasmEvalText(`
+    (type $a (array funcref))
+    (elem $e func $f1 $f2 $f3 $f4)
+    (func $f1 )
+    (func $f2 )
+    (func $f3 )
+    (func $f4 )
+    (func (export "newElem") (result eqref)
+             i32.const 0
+             i32.const 4
+            array.new_elem $a $e
+    )`).exports;
+
+let s = "no exception";
+try {
+    wasmGcReadField(newElem(), -1.5);
+} catch (e) {
+    s = "" + e;
+}
+
+assertEq(s, "Error: Second argument must be a non-negative integer. " +
+            "Usage: wasmGcReadField(obj, index)");