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88786fecff
PR-URL: https://github.com/nodejs/node/pull/18453 Reviewed-By: James M Snell <jasnell@gmail.com> Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: Yang Guo <yangguo@chromium.org> Reviewed-By: Ali Ijaz Sheikh <ofrobots@google.com> Reviewed-By: Michael Dawson <michael_dawson@ca.ibm.com>
39 lines
1.3 KiB
JavaScript
39 lines
1.3 KiB
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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(() => {
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// Make sure we inline the callback, pick up all possible TurboFan
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// optimizations.
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function RunOptFastReduce(multiple) {
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// Use of variable multiple in the callback function forces
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// context creation without escape analysis.
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//
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// Also, the arrow function requires inlining based on
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// SharedFunctionInfo.
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result = array.reduce((p, v, i, a) => p + multiple);
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}
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// Don't optimize because I want to optimize RunOptFastMap with a parameter
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// to be used in the callback.
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%NeverOptimizeFunction(OptFastReduce);
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function OptFastReduce() { RunOptFastReduce(3); }
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function side_effect(a) { return a; }
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%NeverOptimizeFunction(side_effect);
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function OptUnreliableReduce() {
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result = array.reduce(func, side_effect(array));
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}
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DefineHigherOrderTests([
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// name, test function, setup function, user callback
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"DoubleReduce", mc("reduce"), DoubleSetup, (p, v, i, o) => p + v,
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"SmiReduce", mc("reduce"), SmiSetup, (p, v, i, a) => p + 1,
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"FastReduce", mc("reduce"), FastSetup, (p, v, i, a) => p + v,
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"OptFastReduce", OptFastReduce, FastSetup, undefined,
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"OptUnreliableReduce", OptUnreliableReduce, FastSetup,
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(p, v, i, a) => p = v
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]);
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})();
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