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Issue 219313002: Monomorphic prototype failures should be reserved for already-seen keys. (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: Fixed nit. Created 6 years, 8 months ago
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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
3 // found in the LICENSE file.
4
5 function f(a) {
6 a[a.length] = 1;
7 }
8
9 function g(a, i, v) {
10 a[i] = v;
11 }
12
13 f([]); // f KeyedStoreIC goes to 1.GROW
14 o = {};
15 g(o); // We've added property "undefined" to o
16
17 o = {}; // A transition on property "undefined" exists from {}
18 f(o); // Store should go generic.
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