nodejs/deps/v8/test/mjsunit/maglev/tier-to-ml-to-tf.js
Michaël Zasso 6bd756d7c6
deps: update V8 to 10.7.193.13
PR-URL: https://github.com/nodejs/node/pull/44741
Fixes: https://github.com/nodejs/node/issues/44650
Fixes: https://github.com/nodejs/node/issues/37472
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Jiawen Geng <technicalcute@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
2022-10-11 07:24:33 +02:00

45 lines
1.0 KiB
JavaScript

// 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
// Flags: --no-baseline-batch-compilation
function f(x) {
var y = 0;
for (var i = 0; i < x; i++) {
y = 1;
}
return y;
}
let keep_going = 10000000; // 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);
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();