deopt-unlinked.js 583 Bytes
Newer Older
1 2 3 4
// Copyright 2017 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.

5
// Flags: --allow-natives-syntax --opt --no-always-opt
6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28

function foo() {}

assertEquals(0, %GetDeoptCount(foo));

foo();
foo();
%OptimizeFunctionOnNextCall(foo);
foo();

assertOptimized(foo);
assertEquals(0, %GetDeoptCount(foo));

// Unlink the function.
%DeoptimizeFunction(foo);

assertUnoptimized(foo);
assertEquals(1, %GetDeoptCount(foo));

foo();

assertUnoptimized(foo);
assertEquals(1, %GetDeoptCount(foo));