| // 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 |
| |
| var g = 0; |
| g = function() {} |
| |
| function f() { |
| var r = /[abc]/i; // Optimized out. |
| g(r); |
| } |
| |
| %PrepareFunctionForOptimization(f); |
| f(); f(); %OptimizeFunctionOnNextCall(f); // Warm-up. |
| |
| var re; |
| g = function(r) { re = r; } |
| f(); // Lazy deopt is forced here. |
| |
| assertNotEquals(undefined, re); |
| assertEquals("[abc]", re.source); |
| assertEquals("i", re.flags); |
| assertEquals(0, re.lastIndex); |
| assertArrayEquals(["a"], re.exec("a")); |
| assertArrayEquals(["A"], re.exec("A")); |
| assertNull(re.exec("d")); |
