Upload Kmake

deps/v8/test/mjsunit/harmony/bigint/regress-fftmul-2.js

@@ -0,0 +1,23 @@
+// Copyright 2021 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.
+
+function fastAssertEquals(expected, actual) {
+  if (expected === actual) return;
+  // Formatting large BigInts to base-10 string is slow and verbose, so format
+  // them to hex strings and report only a prefix.
+  throw new MjsUnitAssertionError(
+      'Failure:\nexpected:\n0x' +
+      expected.toString(16).substring(0, 1000) +
+      '...n\nfound:\n0x' +
+      actual.toString(16).substring(0, 1000) + '...n');
+}
+
+function regress_1228267(power) {
+  let a = 2n ** power;
+  let a_squared = a * a;
+  let expected = 2n ** (2n * power);
+  fastAssertEquals(expected, a_squared);
+}
+regress_1228267(1273000n);  // This triggered the bug on 32-bit platforms.
+regress_1228267(2564000n);  // This triggered the bug on 64-bit platforms.