f1e0b83e7bPR-URL: https://github.com/nodejs/node/pull/61898 Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com> Reviewed-By: Filip Skokan <panva.ip@gmail.com> Reviewed-By: Rafael Gonzaga <rafael.nunu@hotmail.com> Reviewed-By: Chengzhong Wu <legendecas@gmail.com>
29 lines
1 KiB
JavaScript
29 lines
1 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 array_buffer_load(arr) {
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return arr[1];
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}
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let float32_arr = new Float32Array(10);
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float32_arr[1] = 16.625;
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%PrepareFunctionForOptimization(array_buffer_load);
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assertEquals(16.625, array_buffer_load(float32_arr));
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%OptimizeFunctionOnNextCall(array_buffer_load);
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assertEquals(16.625, array_buffer_load(float32_arr));
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assertOptimized(array_buffer_load);
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// Invalidating ArrayBufferDetachingProtector.
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let int32_arr = new Int32Array(10);
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new Int32Array(int32_arr.buffer);
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%ArrayBufferDetach(int32_arr.buffer);
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// This might have triggered a deopt of `array_buffer_load`.
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assertEquals(16.625, array_buffer_load(float32_arr));
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// Reopting without the protector valid.
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%OptimizeFunctionOnNextCall(array_buffer_load);
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assertEquals(16.625, array_buffer_load(float32_arr));
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assertOptimized(array_buffer_load);
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