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40 lines
761 B

// 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
//
var f = (function() {
"use asm";
function f(x, y) {
return x - y;
}
return f;
})();
var counter = 0;
var deopt = { toString : function() {
%DeoptimizeFunction(f);
counter++;
return "2";
} };
var o = { toString : function() {
counter++;
return "1";
} };
counter = 0;
assertEquals(1, f(deopt, o));
assertEquals(2, counter);
%OptimizeFunctionOnNextCall(f);
counter = 0;
assertEquals(-1, f(o, deopt));
assertEquals(2, counter);
%OptimizeFunctionOnNextCall(f);
counter = 0;
assertEquals(0, f(deopt, deopt));
assertEquals(2, counter);