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Diffstat (limited to 'deps/v8/test/mjsunit/regress/regress-4380.js')
-rw-r--r-- | deps/v8/test/mjsunit/regress/regress-4380.js | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/deps/v8/test/mjsunit/regress/regress-4380.js b/deps/v8/test/mjsunit/regress/regress-4380.js new file mode 100644 index 0000000000..8a83def6e2 --- /dev/null +++ b/deps/v8/test/mjsunit/regress/regress-4380.js @@ -0,0 +1,20 @@ +// 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 + +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); |