forked from LeenkxTeam/Kmake
28 lines
792 B
JavaScript
28 lines
792 B
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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//
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// Flags: --allow-natives-syntax --maglev --no-maglev-inlining
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function f() {}
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function foo() {
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var x;
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try {
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x = [1, 2, 3];
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f(); // f can throw, so we will need to re-materialize x.
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x = undefined; // we need to mutate x, otherwise the lifetime
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// of the object goes until the return, the array
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// has a load-use and we do not reproduce the crash.
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f(); // call forces to trash all registers in regalloc.
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} catch(e) {
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}
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return x;
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}
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%PrepareFunctionForOptimization(foo);
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foo();
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foo();
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%OptimizeMaglevOnNextCall(foo);
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foo();
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