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Diffstat (limited to 'deps/v8/test/mjsunit/compiler/deopt-array-prototype-includes.js')
-rw-r--r-- | deps/v8/test/mjsunit/compiler/deopt-array-prototype-includes.js | 103 |
1 files changed, 103 insertions, 0 deletions
diff --git a/deps/v8/test/mjsunit/compiler/deopt-array-prototype-includes.js b/deps/v8/test/mjsunit/compiler/deopt-array-prototype-includes.js new file mode 100644 index 00000000000..77aedfe1e62 --- /dev/null +++ b/deps/v8/test/mjsunit/compiler/deopt-array-prototype-includes.js @@ -0,0 +1,103 @@ +// Copyright 2018 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 --opt + +/* Test deopt behaviors when the prototype has elements */ + +// includes + +(function() { + const iarr = [0,1,2]; + const darr = [0.0, 2.0, 3.3]; + + function includes(arr, val) { + return arr.includes(val); + } + + assertTrue(includes(iarr, 0)); assertTrue(includes(darr, 0)); + assertTrue(includes(iarr, 2)); assertTrue(includes(darr, 2)); + + // JSCallReducer for includes not reduce because it only works with single map + %OptimizeFunctionOnNextCall(includes); + + assertTrue(includes(iarr, 0)); + assertTrue(includes(darr, 0)); +})(); + +(function() { + const iarr = [0,1,2]; + + function includes(arr, val) { + return arr.includes(val); + } + + assertTrue(includes(iarr, 0)); + assertTrue(includes(iarr, 2)); + + %OptimizeFunctionOnNextCall(includes); + + assertTrue(includes(iarr, 0)); + + const darr = [0.0, 2.0, 3.3]; + // deopt because of map change + assertTrue(includes(darr, 0)); +})(); + +(function() { + const iarr = [,3]; + + function includes(arr, val) { + return arr.includes(val); + } + + iarr.__proto__ = [2]; + + // get feedback + assertFalse(includes(iarr, 0)); + assertTrue(includes(iarr, 2)); + + %OptimizeFunctionOnNextCall(includes); + + assertFalse(includes(iarr, 0)); + + assertTrue(includes(iarr, 2)); +})(); + +(function() { + const iarr = [,3]; + + function includes(arr, val) { + return arr.includes(val); + } + + assertFalse(includes(iarr, 2)); + assertTrue(includes(iarr, 3)); + + %OptimizeFunctionOnNextCall(includes); + assertFalse(includes(iarr, 2)); + + // deopt because of map change + iarr.__proto__ = [2]; + assertTrue(includes(iarr, 2)); +})(); + +// This pollutes the Array prototype, so we should not run more tests +// in the same environment after this. +(function () { + var array = [,]; + + function includes(val) { + return array.includes(val); + } + + includes(6); includes(6); + + %OptimizeFunctionOnNextCall(includes); + assertFalse(includes(6)); + + array.__proto__.push(6); + // deopt because of no_elements_protector + assertTrue(includes(6)); +})(); |