26 lines
601 B
JavaScript
26 lines
601 B
JavaScript
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// 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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//
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// Flags: --allow-natives-syntax
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let x = 0; // Initial value. It doesn't matter...
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x = -12.65; // Transition to kMutableHeapNumber.
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function write(a) {
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x = a;
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}
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// Get context slot mutable number reference if leaked.
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let y = x;
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// Update mutable heap number.
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%PrepareFunctionForOptimization(write);
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write(2.2);
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write(-7.8);
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%OptimizeFunctionOnNextCall(write);
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write(2.2);
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assertEquals(x, 2.2);
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assertEquals(y, -12.65);
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