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// Copyright 2015 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 --no-always-opt
function literals_sharing_test(warmup, optimize) {
function closure() {
// Ensure small array literals start in specific element kind mode.
assertTrue(%HasSmiElements([]));
assertTrue(%HasSmiElements([1]));
assertTrue(%HasSmiElements([1, 2]));
assertTrue(%HasDoubleElements([1.1]));
assertTrue(%HasDoubleElements([1.1, 2]));
var a = [1, 2, 3];
if (warmup) {
// Transition elements kind during warmup...
assertTrue(%HasSmiElements(a));
assertEquals(4, a.push(1.3));
}
// ... and ensure that the information about transitioning is
// propagated to the next closure.
assertTrue(%HasDoubleElements(a));
};
%PrepareFunctionForOptimization(closure);
;
%EnsureFeedbackVectorForFunction(closure);
if (optimize) %OptimizeFunctionOnNextCall(closure);
closure();
}
function test() {
var warmup = true;
for (var i = 0; i < 3; i++) {
print('iter: ' + i + ', warmup: ' + warmup);
literals_sharing_test(warmup, false);
warmup = false;
}
print("iter: " + i + ", opt: true");
literals_sharing_test(warmup, true);
}
test();
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