1 // Copyright 2015 the V8 project authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 // Flags: --allow-natives-syntax 6 7 var f = (function() { 8 "use asm"; 9 function f(x, y) { 10 return x << y; 11 } 12 return f; 13 })(); 14 15 var counter = 0; 16 17 var deopt = { toString : function() { 18 %DeoptimizeFunction(f); 19 counter++; 20 return "2"; 21 } }; 22 23 var o = { toString : function() { 24 counter++; 25 return "1"; 26 } }; 27 28 counter = 0; 29 assertEquals(4, f(deopt, o)); 30 assertEquals(2, counter); 31 32 %OptimizeFunctionOnNextCall(f); 33 counter = 0; 34 assertEquals(4, f(o, deopt)); 35 assertEquals(2, counter); 36 37 %OptimizeFunctionOnNextCall(f); 38 counter = 0; 39 assertEquals(8, f(deopt, deopt)); 40 assertEquals(2, counter); 41
