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| 1 // Copyright 2014 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 // Inlining shift with holey smi arrays shouldn't deopt just because it |
| 8 // encounters the hole on the copy step. |
| 9 function doShift(a) { |
| 10 var x = a.shift(); |
| 11 return x; |
| 12 } |
| 13 |
| 14 function makeArray() { |
| 15 var a = [1, 2,, 3]; |
| 16 a[0] = 2; |
| 17 return a; |
| 18 } |
| 19 |
| 20 doShift(makeArray()); |
| 21 doShift(makeArray()); |
| 22 %OptimizeFunctionOnNextCall(doShift); |
| 23 doShift(makeArray()); |
| 24 assertOptimized(doShift); |
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