Branch: refs/heads/gh18096
Home: https://github.com/Perl/perl5
Commit: 515de2e11af56ed947a53532faf11cb836fb8fd5
https://github.com/Perl/perl5/commit/515de2e11af56ed947a53532faf11cb836fb8fd5
Author: Hugo van der Sanden <h...@crypt.org>
Date: 2020-09-15 (Tue, 15 Sep 2020)
Changed paths:
M regcomp.c
M t/re/re_tests
Log Message:
-----------
[gh18096] assume worst-case for GOSUBs we don't analyse
During study_chunk, under various conditions we avoid recursing into
a GOSUB. But we must avoid giving the enclosing scope the idea that
this GOSUB would match only an empty string, since that could trigger
wrong optimizations (eg CURLYX => CURLYM in the ticket).
So we mark the construct as infinite, as in the code branch where we
_do_ recurse into it.
