// Copyright 2022 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 --maglev --no-stress-opt function f(x) { var y = 0; for (var i = 0; i < x; i++) { y = 1; } return y; } let keep_going = 100000; // A counter to avoid test hangs on failure. function g() { // Test that normal tiering (without OptimizeFooOnNextCall) works. // We test the entire pipeline, i.e. Ignition-SP-ML-TF. f(10); // TODO(v8:7700): Enable. /* if (%IsSparkplugEnabled()) { while (!%ActiveTierIsSparkplug(f) && --keep_going) f(10); assertTrue(%ActiveTierIsSparkplug(f)); } if (%IsMaglevEnabled()) { while (!%ActiveTierIsMaglev(f) && --keep_going) f(10); assertTrue(%ActiveTierIsMaglev(f)); } */ if (%IsTurbofanEnabled()) { while (!%ActiveTierIsTurbofan(f) && --keep_going) f(10); assertTrue(%ActiveTierIsTurbofan(f)); f(10); assertTrue(%ActiveTierIsTurbofan(f)); } } %NeverOptimizeFunction(g); g();