#32053: Tor Browser bundles based on Firefox 68 ESR are not reproducible (LLVM optimization issue) -------------------------------------------------+------------------------- Reporter: gk | Owner: tbb- | team Type: defect | Status: new Priority: Immediate | Milestone: Component: Applications/Tor Browser | Version: Severity: Critical | Resolution: Keywords: TorBrowserTeam201911, tbb-9.0-must, | Actual Points: tbb-9.0-issues, tbb-regression, | tbb-9.0.1-can, GeorgKoppen201911 | Parent ID: | Points: Reviewer: | Sponsor: -------------------------------------------------+-------------------------
Comment (by gk): Replying to [comment:31 gk]: > Okay, so before I speculate further I double-check your results using `-opt-bisect-limit` at least figuring out which optimization is the culprit for the tests I am currently running. Yeah, I can confirm that this is the `-jump-threading` operation here, too, good. Then let's get the LLVM bisecting going. Alex: So, I tried to extract the problematic function name with `llvm- extract` but I failed so far due to my lack of knowledge of LLVM tools. How do I properly demangle the function name so that `llvm-extract` likes it? I tried `llvm-cxxfilt` but no dice. The `opt` output for the problematic function I get is: {{{ BISECT: running pass (1208271) Jump Threading on function (_ZN83_$LT$style..values..specified..box_..Appearance$u20$as$u20$style..parser..Parse$GT$5parse17ha60227de7ee101e5E) }}} -- Ticket URL: <https://trac.torproject.org/projects/tor/ticket/32053#comment:36> Tor Bug Tracker & Wiki <https://trac.torproject.org/> The Tor Project: anonymity online
_______________________________________________ tor-bugs mailing list tor-bugs@lists.torproject.org https://lists.torproject.org/cgi-bin/mailman/listinfo/tor-bugs