| // Copyright 2017 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: --allow-natives-syntax |
| |
| // Call RegExp constructor with a cons string. |
| |
| var cons_string = %ConstructConsString("", "aaaaaaaaaaaaaa"); |
| new RegExp(cons_string); |
| |
| // Same thing but using TF lowering. |
| |
| function make_cons_string(s) { |
| return s + 'aaaaaaaaaaaaaa'; |
| }; |
| %PrepareFunctionForOptimization(make_cons_string); |
| make_cons_string(''); |
| %OptimizeFunctionOnNextCall(make_cons_string); |
| var cons_str = make_cons_string(""); |
| new RegExp(cons_str); |
