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Issue 759823004: Map::CopyGeneralizeAllRepresentations() left incorrect layout descriptor in a new map. (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: Created 6 years ago
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1 // Copyright 2014 the V8 project authors. All rights reserved. 1 // Copyright 2014 the V8 project authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 // Flags: --allow-natives-syntax 5 // Flags: --allow-natives-syntax
6 6
7 function f() { 7 function c(p) {
8 %_RegExpConstructResult(0, {}, {}); 8 return {__proto__: p};
9 } 9 }
10 f(); 10 var p = {};
11 f(); 11 var o = c(p);
12 %OptimizeFunctionOnNextCall(f); 12 p.x = 0.6;
13 f(); 13 Object.defineProperty(p, "x", { writable: false });
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