29 lines
738 B
JavaScript
29 lines
738 B
JavaScript
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// Copyright 2023 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: --maglev --allow-natives-syntax
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let o = [0.5]
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function foo(x, store) {
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x + 0.5; // Give x a float64_alternative
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if (store) {
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o[0] = x;
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}
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}
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%PrepareFunctionForOptimization(foo);
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// Warm up the add with NumberOrOddball feedback, but keep the store as
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// a double store.
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foo(2.3, true);
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foo(undefined, false);
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%OptimizeMaglevOnNextCall(foo);
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// Storing a number should work.
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foo(2.3, true);
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assertEquals(2.3, o[0]);
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// Storing an oddball should work and not store the ToNumber of that oddball.
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foo(undefined, true);
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assertEquals(undefined, o[0]);
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