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f9ce97084c
V8 3.26.31 has received 14 patches since the upgrade to 3.26.33. Since 3.26.33 is technically a tag on the 3.27 branch, reverting back to 3.26.31 would remove now default functionality like WeakMaps. Because of that the patches have simply been cherry-picked and squashed. Here is a summary of all patches: * Fix index register assignment in LoadFieldByIndex for arm, arm64, and mips. * Fix invalid attributes when generalizing because of incompatible map change. * Skip write barriers when updating the weak hash table. * MIPS: Avoid HeapObject check in HStoreNamedField. * Do GC if CodeRange fails to allocate a block. * Array.concat: properly go to dictionary mode when required. * Keep CodeRange::current_allocation_block_index_ in range. * Grow heap slower if GC freed many global handles. * Do not eliminate bounds checks for "<const> - x". * Add missing map check to optimized f.apply(...). * In GrowMode, force the value to the right representation to avoid deopts between storing the length and storing the value. * Reduce max executable size limit. * Fix invalid condition in check elimination effects. * Fix off-by-one error in Array.concat slow mode check. For more information see: https://github.com/v8/v8/commits/3.26 Reviewed-By: Fedor Indutny <fedor@indutny.com>
16 lines
369 B
JavaScript
16 lines
369 B
JavaScript
// Copyright 2014 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// Flags: --allow-natives-syntax
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a = [1];
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b = [];
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a.__defineGetter__(0, function () {
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b.length = 0xffffffff;
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});
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c = a.concat(b);
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for (var i = 0; i < 20; i++) {
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assertEquals(undefined, (c[i]));
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}
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