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PR-URL: https://github.com/nodejs/node/pull/44741 Fixes: https://github.com/nodejs/node/issues/44650 Fixes: https://github.com/nodejs/node/issues/37472 Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl> Reviewed-By: Jiawen Geng <technicalcute@gmail.com> Reviewed-By: James M Snell <jasnell@gmail.com>
53 lines
1.6 KiB
JavaScript
53 lines
1.6 KiB
JavaScript
// Copyright 2021 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 --turbo-optimize-apply --turbofan
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// Flags: --no-always-turbofan
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// These tests do not work well if we flush the feedback vector, which causes
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// deoptimization.
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// Flags: --no-stress-flush-code --no-flush-bytecode
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// The test relies on optimizing/deoptimizing at predictable moments, so
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// it's not suitable for deoptimization fuzzing.
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// Flags: --deopt-every-n-times=0
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// Tests for optimization of CallWithSpread and CallWithArrayLike.
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// This test is in a separate file because it invalidates protectors.
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// Test with array prototype modified after compilation.
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(function () {
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"use strict";
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var sum_js_got_interpreted = true;
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function sum_js(a, b, c, d) {
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sum_js_got_interpreted = %IsBeingInterpreted();
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return a + b + c + d;
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}
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function foo(x, y) {
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return sum_js.apply(null, ["", x, ,y]);
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}
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%PrepareFunctionForOptimization(sum_js);
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%PrepareFunctionForOptimization(foo);
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assertEquals('AundefinedB', foo('A', 'B'));
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assertTrue(sum_js_got_interpreted);
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%OptimizeFunctionOnNextCall(foo);
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assertEquals('AundefinedB', foo('A', 'B'));
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assertFalse(sum_js_got_interpreted);
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assertOptimized(foo);
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// Modify the array prototype, define a default value for element [1].
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Array.prototype[2] = 'x';
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assertUnoptimized(foo);
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// Now the call will not be inlined.
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%PrepareFunctionForOptimization(foo);
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%OptimizeFunctionOnNextCall(foo);
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assertEquals('AxB', foo('A', 'B'));
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assertTrue(sum_js_got_interpreted);
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assertOptimized(foo);
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})();
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