v8/test/mjsunit/shared-function-tier-up-turbo.js

38 lines
1.0 KiB
JavaScript
Raw Normal View History

// Copyright 2016 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: --mark-shared-functions-for-tier-up --allow-natives-syntax
// Flags: --opt --no-always-opt --turbo-filter=*
// If we are always or never optimizing it is useless.
if (isNeverOptimizeLiteMode()) {
print("Warning: skipping test that requires optimization in Lite mode.");
testRunner.quit(0);
}
assertFalse(isAlwaysOptimize());
assertFalse(isNeverOptimize());
(function() {
var sum = 0;
var i = 0;
for (var i = 0; i < 3; ++i) {
var f = function(x) {
return 2 * x;
};
%PrepareFunctionForOptimization(f);
sum += f(i);
if (i == 1) {
// f must be interpreted code.
assertTrue(isUnoptimized(f));
// Run twice (i = 0, 1), then tier-up.
%OptimizeFunctionOnNextCall(f);
} else if (i == 2) {
// Tier-up at i = 2 should go up to turbofan.
assertTrue(isTurboFanned(f));
}
}
})()