38 lines
816 B
JavaScript
38 lines
816 B
JavaScript
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// Copyright 2025 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 --no-maglev-loop-peeling
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// Flags: --maglev --no-always-turbofan
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let obj = { y: 19.5 };
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let arr = [, 2.5];
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function foo(limit) {
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let val = arr[0];
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for (let i = 0; i < limit; i += 1) {
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i += val;
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val = 40;
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}
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try { val.meh(); } catch (e) {}
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obj.y = val;
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}
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%PrepareFunctionForOptimization(foo);
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foo(1);
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%OptimizeMaglevOnNextCall(foo);
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foo(0);
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// {foo} should have deopted right after being optimized.
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assertUnoptimized(foo);
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assertEquals(undefined, obj.y);
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%OptimizeMaglevOnNextCall(foo);
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foo(0);
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// {foo} should remain optimized now.
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assertOptimized(foo);
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assertEquals(undefined, obj.y);
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