53d4dfc377
Compress the parameter count (and function length) stored in SharedFunctionInfo to a uint16_t. This limits us to 2^16 - 1 parameters per function, minus one for the "don't adapt arguments" sentinel value, which is one fewer than Code::kMaxArguments was already. Anyway, 65534 arguments should be enough for anyone! This drops SFI size by 4 bytes. Bug: chromium:818642 Change-Id: I126bfb24453dcdc5087a104d3a12cf195a56fa9f Reviewed-on: https://chromium-review.googlesource.com/1076627 Commit-Queue: Leszek Swirski <leszeks@chromium.org> Reviewed-by: Benedikt Meurer <bmeurer@chromium.org> Cr-Commit-Position: refs/heads/master@{#53447}
19 lines
528 B
JavaScript
19 lines
528 B
JavaScript
// Copyright 2017 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 --no-turbo-verify
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(function TestParameterLimit() {
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var src = '(function f(a,';
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for (var i = 0; i < 65534 - 2; i++) {
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src += 'b' + i + ',';
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}
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src += 'c) { return a + c })';
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var f = eval(src);
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assertEquals(NaN, f(1));
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assertEquals(NaN, f(2));
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%OptimizeFunctionOnNextCall(f);
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assertEquals(NaN, f(3));
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})();
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