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Kmake/deps/v8/test/mjsunit/turboshaft/maglev-frontend/store-field.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 store_field(o, v) {
o.x = 17; // Tagged field, no write barrier
o.y = v; // Tagged field, with write barrier
o.z = 12.29; // Double field
return o;
}
let o = { x : 42, y : 10, z : 14.58 };
%PrepareFunctionForOptimization(store_field);
assertEquals({ x : 17, y : undefined, z : 12.29 }, store_field(o));
o = { x : 42, y : 10, z : 14.58 }; // Resetting {o}
%OptimizeFunctionOnNextCall(store_field);
assertEquals({ x : 17, y : undefined, z : 12.29 }, store_field(o));
assertOptimized(store_field);