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// 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: --allow-natives-syntax --expose-gc --opt
// Make sure literals are strongly rooted and safe from weak-code deopts.
(function() {
function foo() {
var a = {y: 0};
a.y = 1;
return a;
}
%PrepareFunctionForOptimization(foo);
foo();
foo();
%OptimizeFunctionOnNextCall(foo);
foo();
gc();
assertOptimized(foo);
})();
(function() {
function hot(o) {
return o.x + o.y;
}
function mapPlus(a, y) {
var f = (x => hot({x, y}));
%EnsureFeedbackVectorForFunction(f);
return a.map(f);
}
%EnsureFeedbackVectorForFunction(mapPlus);
%PrepareFunctionForOptimization(hot);
var a = [1, 2, 3];
print(mapPlus(a, 1));
print(mapPlus(a, 2));
%OptimizeFunctionOnNextCall(hot);
print(mapPlus(a, 3));
gc(); // BOOOM!
assertOptimized(hot);
print(mapPlus(a, 4));
})();
// Verify that we can handle the creation of a new script, where the
// code is cached and the feedback vector has to be re-created.
(function() {
var sopen = 'function wrapper() { ';
var s1 = 'function foo() { return bar(5); } ';
var s2 = '%PrepareFunctionForOptimization(foo); ';
var s3 = 'foo(); foo(); %OptimizeFunctionOnNextCall(foo); foo(); ';
var sclose = '} wrapper(); ';
var s = sopen + s1 + s2 + s3 + sclose;
function bar(i){return i + 3};
%EnsureFeedbackVectorForFunction(bar);
for (var i = 0; i < 4; i++) {
eval(s);
}
})();
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