| // Copyright 2015 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 --expose-gc |
| |
| var inner = new Array(); |
| inner.a = {x:1}; |
| inner[0] = 1.5; |
| inner.b = {x:2}; |
| assertTrue(%HasDoubleElements(inner)); |
| |
| function foo(o) { |
| return o.field.b.x; |
| } |
| |
| var outer = {}; |
| outer.field = inner; |
| foo(outer); |
| foo(outer); |
| foo(outer); |
| %OptimizeFunctionOnNextCall(foo); |
| foo(outer); |
| |
| // Generalize representation of field "b" of inner object. |
| var v = { get x() { return 0x7fffffff; } }; |
| inner.b = v; |
| |
| gc(); |
| |
| var boom = foo(outer); |
| print(boom); |
| assertEquals(0x7fffffff, boom); |
