Adding upstream version 86.0.1.upstream/86.0.1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 23 insertions, 0 deletions

diff --git a/js/src/tests/test262/language/statements/labeled/tco-strict.js b/js/src/tests/test262/language/statements/labeled/tco-strict.js
new file mode 100644
index 0000000000..b0889704a3
--- /dev/null
+++ b/js/src/tests/test262/language/statements/labeled/tco-strict.js
@@ -0,0 +1,23 @@
+// |reftest| skip -- tail-call-optimization is not supported
+'use strict';
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+description: Statement within statement is a candidate for tail-call optimization.
+esid: sec-static-semantics-hascallintailposition
+flags: [onlyStrict]
+features: [tail-call-optimization]
+includes: [tcoHelper.js]
+---*/
+
+var callCount = 0;
+(function f(n) {
+  if (n === 0) {
+    callCount += 1
+    return;
+  }
+  test262: return f(n - 1);
+}($MAX_ITERATIONS));
+assert.sameValue(callCount, 1);
+
+reportCompare(0, 0);