1 files changed, 39 insertions, 0 deletions
diff --git a/deps/v8/test/mjsunit/wasm/bigint-i64-to-imported-js-func.js b/deps/v8/test/mjsunit/wasm/bigint-i64-to-imported-js-func.js
new file mode 100644
index 0000000000..2fa48d9b96
--- /dev/null
+++ b/deps/v8/test/mjsunit/wasm/bigint-i64-to-imported-js-func.js
@@ -0,0 +1,39 @@
+// Copyright 2019 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// Flags: --experimental-wasm-bigint
+
+load("test/mjsunit/wasm/wasm-module-builder.js");
+
+(function TestWasmI64ToJSBigIntImportedFunc() {
+  var builder = new WasmModuleBuilder();
+
+  var a_index = builder
+    .addImport("a", "a", kSig_l_l) // i64 -> i64
+
+  builder
+    .addFunction("fn", kSig_l_v) // () -> i64
+    .addBody([
+      kExprI64Const, 0x7,
+      kExprCallFunction, a_index
+    ])
+    .exportFunc();
+
+  a_was_called = false;
+
+  var module = builder.instantiate({
+    a: {
+      a(param) {
+        assertEquals(typeof param, "bigint");
+        assertEquals(param, 7n);
+        a_was_called = true;
+        return 12n;
+      },
+    }
+  });
+
+  assertEquals(module.exports.fn(), 12n);
+
+  assertTrue(a_was_called);
+})();