| // Copyright 2016 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: --opt --allow-natives-syntax --no-always-opt | |
| function f(b) { | |
| if (b == 1) { | |
| let a = a = 20; | |
| } | |
| } | |
| f(0); | |
| f(0); | |
| %OptimizeFunctionOnNextCall(f); | |
| f(0); | |
| assertOptimized(f); | |
| // Check that hole checks are handled correctly in optimized code. | |
| assertThrowsEquals(() => {f(1)}, ReferenceError()); | |
| assertOptimized(f); |