mirror of
https://github.com/nodejs/node.git
synced 2025-05-16 04:04:17 +00:00
f579e11940
PR-URL: https://github.com/nodejs/node/pull/26685 Reviewed-By: Anna Henningsen <anna@addaleax.net> Reviewed-By: Michaël Zasso <targos@protonmail.com> Reviewed-By: Refael Ackermann <refack@gmail.com>
43 lines
833 B
JavaScript
43 lines
833 B
JavaScript
// 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";
|
|
} };
|
|
|
|
%PrepareFunctionForOptimization(f);
|
|
counter = 0;
|
|
assertEquals(1, f(deopt, o));
|
|
assertEquals(2, counter);
|
|
|
|
%OptimizeFunctionOnNextCall(f);
|
|
counter = 0;
|
|
assertEquals(-1, f(o, deopt));
|
|
assertEquals(2, counter);
|
|
|
|
%PrepareFunctionForOptimization(f);
|
|
%OptimizeFunctionOnNextCall(f);
|
|
counter = 0;
|
|
assertEquals(0, f(deopt, deopt));
|
|
assertEquals(2, counter);
|