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>
48 lines
1.2 KiB
JavaScript
48 lines
1.2 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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// Flags: --no-always-turbofan --const-tracking-let
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let glob_a = 0;
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let glob_b = 3.35;
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{
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function compute_val(v) { return v + 1.15; }
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function read() { return glob_a + glob_b; }
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function write(v, w) {
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glob_a = v;
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let f64 = compute_val(w);
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glob_b = f64;
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}
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%PrepareFunctionForOptimization(compute_val);
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%PrepareFunctionForOptimization(read);
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assertEquals(3.35, read());
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%OptimizeFunctionOnNextCall(read);
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assertEquals(3.35, read());
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assertOptimized(read);
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%PrepareFunctionForOptimization(write);
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// Write the same value. This won't invalidate the constness.
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write(0, 2.2);
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glob_b = 3.35;
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assertEquals(3.35, read());
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%OptimizeFunctionOnNextCall(write);
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write(0, 2.2);
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assertEquals(3.35, read());
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assertOptimized(read);
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// Invalidating {glob_a} constness.
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write(1, 2.2);
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assertUnoptimized(write);
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assertEquals(4.35, read());
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%OptimizeFunctionOnNextCall(write);
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write(1, 2.2);
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assertEquals(4.35, read());
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assertOptimized(write);
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}
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