5e96f47bc8
This prevents the compiler from optimizing f64-to-tagged(tagged-to-f64(x)) ==> x for non-number x (such as undefined). Review-Url: https://codereview.chromium.org/2027593002 Cr-Commit-Position: refs/heads/master@{#36613}
20 lines
375 B
JavaScript
20 lines
375 B
JavaScript
// Copyright 2016 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
|
|
|
|
function g(a, b) {
|
|
a = +a;
|
|
if (b) {
|
|
a = undefined;
|
|
}
|
|
print(a);
|
|
return +a;
|
|
}
|
|
|
|
g(0);
|
|
g(0);
|
|
%OptimizeFunctionOnNextCall(g);
|
|
assertTrue(Number.isNaN(g(0, true)));
|