summaryrefslogtreecommitdiff
path: root/deps/v8/test/mjsunit/regress/regress-4380.js
blob: f51241ac7d65f58e7d720797c190d31a13ef80ca (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
// 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 --crankshaft

function bar(a) {
  var x = a[0];
  return x == undefined;
}

// Make the keyed load be polymorphic on holey smi and holey fast.
bar([, 2, 3]);
bar([, 'two', 'three']);
bar([, 2, 3]);

%OptimizeFunctionOnNextCall(bar);
bar([, 2, 3]);
// Verify that loading the hole doesn't cause deoptimization.
assertOptimized(bar);