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* [Bug c++/112680] New: g++-13 segfault on std::regex_match with c++11 or above -O2 and lto @ 2023-11-23 13:38 costamagnagianfranco at yahoo dot it 2023-11-23 15:04 ` [Bug lto/112680] " redi at gcc dot gnu.org ` (2 more replies) 0 siblings, 3 replies; 4+ messages in thread From: costamagnagianfranco at yahoo dot it @ 2023-11-23 13:38 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112680 Bug ID: 112680 Summary: g++-13 segfault on std::regex_match with c++11 or above -O2 and lto Product: gcc Version: 13.2.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c++ Assignee: unassigned at gcc dot gnu.org Reporter: costamagnagianfranco at yahoo dot it Target Milestone: --- Created attachment 56672 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=56672&action=edit reproduce test case This used to work with g++-10 and started to fail with g++-11 g++-12 and g++-13 sh runme.sh Segmentation fault (core dumped) g++-12 main.cpp -std=c++11 -O2 -flto=auto -o main && ./main The main is really simple, load two strings, and call regex function #include <fstream> #include <sstream> #include <iostream> #include <regex> int main() { std::ifstream t("file.txt"); std::stringstream file; file << t.rdbuf(); std::string filestr = file.str(); std::ifstream t2("regex.txt"); std::stringstream filepathregex; filepathregex << t2.rdbuf(); std::string regexstr = filepathregex.str(); const std::regex regex(regexstr); std::regex_match(filestr.begin(), filestr.end(), regex); } I attached the tarball with the files to reproduce the issue. The content triggering the issue was originated by the testsuite dump of zim-tools https://launchpad.net/ubuntu/+source/zim-tools/3.2.0-1build1 ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug lto/112680] g++-13 segfault on std::regex_match with c++11 or above -O2 and lto 2023-11-23 13:38 [Bug c++/112680] New: g++-13 segfault on std::regex_match with c++11 or above -O2 and lto costamagnagianfranco at yahoo dot it @ 2023-11-23 15:04 ` redi at gcc dot gnu.org 2023-11-23 15:07 ` [Bug c++/112680] " redi at gcc dot gnu.org 2023-11-23 15:08 ` redi at gcc dot gnu.org 2 siblings, 0 replies; 4+ messages in thread From: redi at gcc dot gnu.org @ 2023-11-23 15:04 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112680 Jonathan Wakely <redi at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Ever confirmed|0 |1 Status|UNCONFIRMED |NEW CC| |marxin at gcc dot gnu.org Last reconfirmed| |2023-11-23 Component|c++ |lto ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug c++/112680] g++-13 segfault on std::regex_match with c++11 or above -O2 and lto 2023-11-23 13:38 [Bug c++/112680] New: g++-13 segfault on std::regex_match with c++11 or above -O2 and lto costamagnagianfranco at yahoo dot it 2023-11-23 15:04 ` [Bug lto/112680] " redi at gcc dot gnu.org @ 2023-11-23 15:07 ` redi at gcc dot gnu.org 2023-11-23 15:08 ` redi at gcc dot gnu.org 2 siblings, 0 replies; 4+ messages in thread From: redi at gcc dot gnu.org @ 2023-11-23 15:07 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112680 Jonathan Wakely <redi at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Component|lto |c++ --- Comment #1 from Jonathan Wakely <redi at gcc dot gnu.org> --- ASan shows there's a stack overflow, even without -flto=auto ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug c++/112680] g++-13 segfault on std::regex_match with c++11 or above -O2 and lto 2023-11-23 13:38 [Bug c++/112680] New: g++-13 segfault on std::regex_match with c++11 or above -O2 and lto costamagnagianfranco at yahoo dot it 2023-11-23 15:04 ` [Bug lto/112680] " redi at gcc dot gnu.org 2023-11-23 15:07 ` [Bug c++/112680] " redi at gcc dot gnu.org @ 2023-11-23 15:08 ` redi at gcc dot gnu.org 2 siblings, 0 replies; 4+ messages in thread From: redi at gcc dot gnu.org @ 2023-11-23 15:08 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112680 Jonathan Wakely <redi at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Blocks| |102445 --- Comment #2 from Jonathan Wakely <redi at gcc dot gnu.org> --- It could just be the well known problem of resource exhaustion with our recursive std::regex implementation. Referenced Bugs: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102445 [Bug 102445] [meta-bug] std::regex issues ^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2023-11-23 15:08 UTC | newest] Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2023-11-23 13:38 [Bug c++/112680] New: g++-13 segfault on std::regex_match with c++11 or above -O2 and lto costamagnagianfranco at yahoo dot it 2023-11-23 15:04 ` [Bug lto/112680] " redi at gcc dot gnu.org 2023-11-23 15:07 ` [Bug c++/112680] " redi at gcc dot gnu.org 2023-11-23 15:08 ` redi at gcc dot gnu.org
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