918fe04351
PR-URL: https://github.com/nodejs/node/pull/58070 Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com> Reviewed-By: Darshan Sen <raisinten@gmail.com> Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com> Reviewed-By: Rafael Gonzaga <rafael.nunu@hotmail.com>
45 lines
1.3 KiB
JavaScript
45 lines
1.3 KiB
JavaScript
// Copyright 2024 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 --turbolev --turbofan
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function transition_arr(arr) {
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var object = new Object();
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arr[0] = object;
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}
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let smi_arr = [1, 2, 3, 4];
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let holey_smi_arr = [1, 2, 3, /* hole */, 4];
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%PrepareFunctionForOptimization(transition_arr);
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transition_arr(smi_arr);
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transition_arr(holey_smi_arr);
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// Resetting the arrays to collect feedback one more time.
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smi_arr = [1, 2, 3, 4];
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holey_smi_arr = [1, 2, 3, /* hole */, 4];
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transition_arr(smi_arr);
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transition_arr(holey_smi_arr);
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let expected_smi_arr = smi_arr;
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let expected_holey_smi_arr = holey_smi_arr;
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%OptimizeFunctionOnNextCall(transition_arr);
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// Resetting the arrays
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smi_arr = [1, 2, 3, 4];
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holey_smi_arr = [1, 2, 3, /* hole */, 4];
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// Triggering transitions
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transition_arr(smi_arr);
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assertEquals(expected_smi_arr, smi_arr);
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transition_arr(holey_smi_arr);
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assertEquals(expected_holey_smi_arr, holey_smi_arr)
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assertOptimized(transition_arr);
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// Not trigering transitions (because arrays already transitioned)
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transition_arr(smi_arr);
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transition_arr(holey_smi_arr);
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assertOptimized(transition_arr);
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// Triggering deopt
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let double_arr = [1.5, 3.32, 6.28];
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transition_arr(double_arr);
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assertEquals([{}, 3.32, 6.28], double_arr);
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