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// Copyright 2020 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 --turboprop --opt --no-always-opt
var v_0 = {};
function f_0(o, v) {
o.f = v;
}
function f_1() {
return v_0.f;
}
%PrepareFunctionForOptimization(f_0);
f_0(v_0, 42);
f_0(v_0, 42);
%OptimizeFunctionOnNextCall(f_0);
f_0(v_0, 42);
// TP tier up
%PrepareFunctionForOptimization(f_1);
f_1();
f_1();
%OptimizeFunctionOnNextCall(f_1);
f_1();
// Now TF tier up
%PrepareFunctionForOptimization(f_1);
f_1();
%TierupFunctionOnNextCall(f_1);
f_1();
assertOptimized(f_0);
// TODO(mythria): Add an option to assert on the optimization tier and assert
// f_1 is optimized with TurboFan.
assertOptimized(f_1);
// Store in f_0 should trigger a change to the constness of the field.
f_0(v_0, 53);
// f_0 does a eager deopt and lets the interpreter update the field constness.
assertUnoptimized(f_0);
if (!%IsTopTierTurboprop()) {
// f_1 has TurboFan code and should deopt because of dependency change.
assertUnoptimized(f_1);
}
assertEquals(v_0.f, 53);
assertEquals(f_1(), 53);
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