mirror of
https://github.com/tc39/test262.git
synced 2025-10-31 03:34:08 +01:00
7298a38552
sourceRevisionAtLastExport: 33f2fb0e53d135f0ee17cfccd9d993eb2a6f47de targetRevisionAtLastExport: 31340cbd9add103f586d501b0c3354b7b182abc0
47 lines
2.2 KiB
JavaScript
47 lines
2.2 KiB
JavaScript
// Copyright 2009 the V8 project authors. All rights reserved.
|
|
// Redistribution and use in source and binary forms, with or without
|
|
// modification, are permitted provided that the following conditions are
|
|
// met:
|
|
//
|
|
// * Redistributions of source code must retain the above copyright
|
|
// notice, this list of conditions and the following disclaimer.
|
|
// * Redistributions in binary form must reproduce the above
|
|
// copyright notice, this list of conditions and the following
|
|
// disclaimer in the documentation and/or other materials provided
|
|
// with the distribution.
|
|
// * Neither the name of Google Inc. nor the names of its
|
|
// contributors may be used to endorse or promote products derived
|
|
// from this software without specific prior written permission.
|
|
//
|
|
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
|
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
|
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
|
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
|
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
|
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
|
|
// A HeapNumber with certain bits in the mantissa of the floating point
|
|
// value should not be able to masquerade as a string in a keyed lookup
|
|
// inline cache stub. See http://codereview.chromium.org/155924.
|
|
|
|
A = [ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 ];
|
|
|
|
function foo() {
|
|
x = 1 << 26;
|
|
x = x * x;
|
|
// The following floating-point heap number has a second word similar
|
|
// to that of the string "5":
|
|
// 2^52 + index << cached_index_shift + cached_index_tag
|
|
x = x + (5 << 2) + (1 << 1);
|
|
return A[x];
|
|
}
|
|
|
|
assertEquals(undefined, foo(), "First lookup A[bad_float]");
|
|
assertEquals(undefined, foo(), "Second lookup A[bad_float]");
|
|
assertEquals(undefined, foo(), "Third lookup A[bad_float]");
|