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Kmake/deps/v8/test/mjsunit/turboshaft/maglev-frontend/dematerialized-multi-escape.js

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2026-05-26 23:36:42 -07:00
// Copyright 2024 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Flags: --allow-natives-syntax --turbolev --turbofan
function dematerialized_object(n) {
let o = { x : 42 };
if (n < 0) {
// We won't execute this code when collecting feedback, which means that
// Maglev will do an unconditional deopt here.
n + 5;
return o;
}
o.x = 17;
if (n == 1) {
// We won't execute this code when collecting feedback, which means that
// Maglev will do an unconditional deopt here.
n + 5;
return o;
}
return n + 2;
}
%PrepareFunctionForOptimization(dematerialized_object);
assertEquals(7, dematerialized_object(5));
assertEquals(7, dematerialized_object(5));
%OptimizeFunctionOnNextCall(dematerialized_object);
assertEquals(7, dematerialized_object(5));
assertEquals({x : 42}, dematerialized_object(-1));
%ClearFunctionFeedback(dematerialized_object);
%PrepareFunctionForOptimization(dematerialized_object);
assertEquals(7, dematerialized_object(5));
assertEquals(7, dematerialized_object(5));
%OptimizeFunctionOnNextCall(dematerialized_object);
assertEquals(7, dematerialized_object(5));
assertEquals({x : 17}, dematerialized_object(1));