tree a41aae44daa5f628d5a11d01a33b37f65242d556
parent 88651a2688dcc16dfc50a38845fdbae9ee47ea13
author msaboff@apple.com <msaboff@apple.com@268f45cc-cd09-0410-ab3c-d52691b4dbfc> 1295459895 +0000
committer msaboff@apple.com <msaboff@apple.com@268f45cc-cd09-0410-ab3c-d52691b4dbfc> 1295459895 +0000

2011-01-19  Michael Saboff  <msaboff@apple.com>

        Reviewed by Darin Adler.

        <rdar://problem/8882994> Regression: Simple nested backtrack hangs
        https://bugs.webkit.org/show_bug.cgi?id=52675

        The changeset (r76076) for https://bugs.webkit.org/show_bug.cgi?id=52540
        broke simple backtracking in some cases.  Reworked that change to 
        link both jumps and labels.

        * yarr/YarrJIT.cpp:
        (JSC::Yarr::YarrGenerator::BacktrackDestination::hasBacktrackToLabel):
        (JSC::Yarr::YarrGenerator::TermGenerationState::propagateBacktrackingFrom):
        (JSC::Yarr::YarrGenerator::generateParenthesesSingle):
2011-01-19  Michael Saboff  <msaboff@apple.com>

        Reviewed by Darin Adler.

        <rdar://problem/8882994> Regression: Simple nested backtrack hangs
        https://bugs.webkit.org/show_bug.cgi?id=52675

        New tests to support change.

        * fast/regex/parentheses-expected.txt:
        * fast/regex/script-tests/parentheses.js:


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@76133 268f45cc-cd09-0410-ab3c-d52691b4dbfc