regress-231.js revision a7e24c173cf37484693b9abb38e494fa7bd7baeb 
1// Copyright 2009 the V8 project authors. All rights reserved.
2// Redistribution and use in source and binary forms, with or without
3// modification, are permitted provided that the following conditions are
4// met:
5//
6//     * Redistributions of source code must retain the above copyright
7//       notice, this list of conditions and the following disclaimer.
8//     * Redistributions in binary form must reproduce the above
9//       copyright notice, this list of conditions and the following
10//       disclaimer in the documentation and/or other materials provided
11//       with the distribution.
12//     * Neither the name of Google Inc. nor the names of its
13//       contributors may be used to endorse or promote products derived
14//       from this software without specific prior written permission.
15//
16// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
18// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
19// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
20// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
21// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27
28// See issue 231 <URL: http://code.google.com/p/v8/issues/detail?id=231 >
29// A stack growth during a look-ahead could restore a pointer to the old stack.
30// (Test derived from crash at ibs.blumex.com).
31
32var re = /Ggcy\b[^D]*D((?:(?=([^G]+))\2|G(?!gcy\b[^D]*D))*?)GIgcyD/;
33
34var str = 'GgcyDGgcy.saaaa.aDGaaa.aynaaaaaaaaacaaaaagcaaaaaaaancaDGgnayr' +
35    '.aryycnaaaataaaa.aryyacnaaataaaa.aaaaraaaaa.aaagaaaaaaaaDGgaaaaDGga' +
36    '.aaagaaaaaaaaDGga.nyataaaaragraa.anyataaagaca.agayraaarataga.aaacaa' +
37    '.aaagaa.aaacaaaDGaaa.aynaaaaaaaaacaaaaagcaaaaaacaagaa.agayraaaGgaaa' +
38    '.trgaaaaaagaatGanyara.caagaaGaD.araaaa_aat_aayDDaaDGaaa.aynaaaaaaaa' +
39    'acaaaaagcaaaaaacaaaaa.agayraaaGgaaa.trgaaaaaaatGanyaraDDaaDGacna.ay' +
40    'naaaaaaaaacaaaaagcaaaaaacaaaraGgaaa.naaaaagaaaaaaraynaaGanyaraDDaaD' +
41    'aGgaaa.saaangaaaaraaaGgaaa.trgaaaragaaaarGanyaraDDDaGIacnaDGIaaaDGI' +
42    'aaaDGIgaDGga.anyataaagaca.agayraaaaagaa.aaaaa.cnaaaata.aca.aca.aca.' +
43    'acaaaDGgnayr.aaaaraaaaa.aaagaaaaaaaaDGgaaaaDGgaDGga.aayacnaaaaa.ayn' +
44    'aaaaaaaaacaaaaagcaaaaaanaraDGaDacaaaaag_anaraGIaDGIgaDGIgaDGgaDGga.' +
45    'aayacnaaaaa.aaagaaaaaaaaDGaa.aaagaaaaaaaa.aaaraaaa.aaaanaraaaa.IDGI' +
46    'gaDGIgaDGgaDGga.aynaaaaaaaaacaaaaagcaaaaaaaraaaa.anyataaagacaDaGgaa' +
47    'a.trgGragaaaacgGaaaaaaaG_aaaaa_Gaaaaaaaaa,.aGanar.anaraDDaaGIgaDGga' +
48    '.aynaaaaaaaaacaaaaagcaaaaaaanyara.anyataaagacaDGaDaaaaag_caaaaag_an' +
49    'araGIaDGIgaDGIgaDGgaDGga.aynaaaaaaaaacaaaaagcaaaaaaaraaaa.anyataaag' +
50    'acaDaGgaaa.trgGragaaaacgGaaaaaaaG_aaaaa_aaaaaa,.aaaaacaDDaaGIgaDGga' +
51    '.aynaaaaaaaaacaaaaagcaaaaaaanyara.anyataaagacaDGaDataaac_araaaaGIaD' +
52    'GIgaDGIgaDaagcyaaGgaDGga.aayacnaaaaa.aaagaaaaaaaaDGaa.aaagaaaaaaaa.' +
53    'aaaraaaa.aaaanaraaaa.IDGIgaDGIgaDGgcy.asaadanyaga.aa.aaaDGgaDGga.ay' +
54    'naaaaaaaaacaaaaagcaaaaaaaraaaa.anyataaagacaDaGgaaa.trgGragaaaacgGaa' +
55    'aaaaaG_aaaaa_DaaaaGaa,.aDanyagaaDDaaGIgaDGga.aynaaaaaaaaacaaaaagcaa' +
56    'aaaaanyara.anyataaagacaDGaDadanyagaaGIaDGIgaDGIgaDGIgcyDGgcy.asaaga' +
57    'cras.agra_yratga.aa.aaaarsaaraa.aa.agra_yratga.aa.aaaDGgaDGga.aynaa' +
58    'aaaaaaacaaaaagcaaaaaaaraaaa.anyataaagacaDaGgaaa.trgGragaaaacgGaaaaa' +
59    'aaG_aaaaa_aGaaaaaaGaa,.aaratgaaDDaaGIgaDGga.aynaaaaaaaaacaaaaagcaaa' +
60    'aaaanyara.anyataaagacaDGaDaagra_yratgaaGIaDGIgaDGIgaDGIgcyDGgcy.asa' +
61    'agacras.aratag.aa.aaaarsaaraa.aa.aratag.aa.aaaDGgaDGga.aynaaaaaaaaa' +
62    'caaaaagcaaaaaaaraaaa.anyataaagacaDaGgaaa.trgGragaaaacgGaaaaaaaG_aaa' +
63    'aa_aaaaaGa,.aaratagaDDaaGIgaDGga.aynaaaaaaaaacaaaaagcaaaaaaanyara.a' +
64    'nyataaagacaDGaDaaratagaGIaDGIgaDGIgaDGIgcyDGgcy.asaagacras.gaaax_ar' +
65    'atag.aa.aaaarsaaraa.aa.gaaax_aratag.aa.aaaDGgaDGga.aynaaaaaaaaacaaa' +
66    'aagcaaaaaaaraaaa.anyataaagacaDaGgaaa.trgGragaaaacgGaaaaaaaG_aaaaa_G' +
67    'aaaaaaaaaGa,.aaratagaDDaaGIgaDGga.aynaaaaaaaaacaaaaagcaaaaaaanyara.' +
68    'anyataaagacaDGaDagaaax_aratagaGIaDGIgaDGIgaDGIgcyDGgcy.asaagacras.c' +
69    'ag_aaar.aa.aaaarsaaraa.aa.cag_aaar.aa.aaaDGgaDGga.aynaaaaaaaaacaaaa' +
70    'agcaaaaaaaraaaa.anyataaagacaDaGgaaa.trgGragaaaacgGaaaaaaaG_aaaaa_aa' +
71    'Gaaaaa,.aaagaaaraDDaaGIgaDGga.aynaaaaaaaaacaaaaagcaaaaaaanyara.anya' +
72    'taaagacaDGaDacag_aaaraGIaDGIgaDGIgaDGIgcyDGgcy.asaagacras.aaggaata_' +
73    'aa_cynaga_cc.aa.aaaarsaaraa.aa.aaggaata_aa_cynaga_cc.aa.aaaDGgaDGga' +
74    '.aynaaaaaaaaacaaaaagcaaaaaaaraaaa.anyataaagacaDaGgaaa.trgGragaaaacg' +
75    'GaaaaaaaG_aaaaa_aaGGaaaa_aa_aaaaGa_aaa,.aaynagaIcagaDDaaGIgaDGga.ay' +
76    'naaaaaaaaacaaaaagcaaaaaaanyara.anyataaagacaDGaDaaaggaata_aa_cynaga_' +
77    'ccaGIaDGIgaDGIgaDGIgcyDGgcy.asaagacras.syaara_aanargra.aa.aaaarsaar' +
78    'aa.aa.syaara_aanargra.aa.aaaDGgaDGga.aynaaaaaaaaacaaaaagcaaaaaaaraa' +
79    'aa.anyataaagacaDaGgaaa.trgGragaaaacgGaaaaaaaG_aaaaa_aaaaaaaaaaaGaaa' +
80    ',.aaanargraaDDaaGIgaDGga.aynaaaaaaaaacaaaaagcaaaaaaanyara.anyataaag' +
81    'acaDGaDasyaara_aanargraaGIaDGIgaDGIgaDGIgcyDGgcy.asaagacras.cynag_a' +
82    'anargra.aa.aaaarsaaraa.aa.cynag_aanargra.aa.aaaDGgaDGga.aynaaaaaaaa' +
83    'acaaaaagcaaaaaaaraaaa.anyataaagacaDaGgaaa.trgGragaaaacgGaaaaaaaG_aa' +
84    'aaa_aaaaGaaaaaGaaa,.aaanargraaDDaaGIgaDGga.aynaaaaaaaaacaaaaagcaaaa' +
85    'aaanyara.anyataaagacaDGaDacynag_aanargraaGIaDGIgaDGIgaDGIgcyDGgaDGg' +
86    'a.aynaaaaaaaaacaaaaagcaaaaaaaraaaa.anyataaagacaDaGgaaa.trgGragaaaac' +
87    'gGaaaaaaaG';
88
89//Shouldn't crash.
90
91var res = re.test(str);
92assertTrue(res);