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* [Bug c++/67409] New: tree-cfg.c dereferences a NULL pointer @ 2015-08-31 14:26 zeccav at gmail dot com 2015-08-31 14:44 ` [Bug middle-end/67409] " mpolacek at gcc dot gnu.org ` (4 more replies) 0 siblings, 5 replies; 6+ messages in thread From: zeccav at gmail dot com @ 2015-08-31 14:26 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67409 Bug ID: 67409 Summary: tree-cfg.c dereferences a NULL pointer Product: gcc Version: 5.2.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c++ Assignee: unassigned at gcc dot gnu.org Reporter: zeccav at gmail dot com Target Milestone: --- //g++ 5.2.0 sanitizer detects dereferencing a NULL pointer //gcc-5.2.0/gcc/tree-cfg.c:1342:38: runtime error: member access within null pointer of type 'struct basic_block_def' //must be compiled with -fpermissive //pointer bb is null //source line "tree main_label = label_for_bb[bb->index].label;" //double check with "gcc_assert(bb);" immediately before //Target: x86_64-unknown-linux-gnu void f() try { goto l2; } catch (...) { l2:; } ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug middle-end/67409] tree-cfg.c dereferences a NULL pointer 2015-08-31 14:26 [Bug c++/67409] New: tree-cfg.c dereferences a NULL pointer zeccav at gmail dot com @ 2015-08-31 14:44 ` mpolacek at gcc dot gnu.org 2015-09-01 8:39 ` [Bug middle-end/67409] [5/6 Regression] " rguenth at gcc dot gnu.org ` (3 subsequent siblings) 4 siblings, 0 replies; 6+ messages in thread From: mpolacek at gcc dot gnu.org @ 2015-08-31 14:44 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67409 Marek Polacek <mpolacek at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |NEW Last reconfirmed| |2015-08-31 CC| |mpolacek at gcc dot gnu.org Component|c++ |middle-end Ever confirmed|0 |1 --- Comment #1 from Marek Polacek <mpolacek at gcc dot gnu.org> --- Confirmed even with trunk. ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug middle-end/67409] [5/6 Regression] tree-cfg.c dereferences a NULL pointer 2015-08-31 14:26 [Bug c++/67409] New: tree-cfg.c dereferences a NULL pointer zeccav at gmail dot com 2015-08-31 14:44 ` [Bug middle-end/67409] " mpolacek at gcc dot gnu.org @ 2015-09-01 8:39 ` rguenth at gcc dot gnu.org 2015-09-01 8:46 ` mpolacek at gcc dot gnu.org ` (2 subsequent siblings) 4 siblings, 0 replies; 6+ messages in thread From: rguenth at gcc dot gnu.org @ 2015-09-01 8:39 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67409 Richard Biener <rguenth at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Keywords| |accepts-invalid Known to work| |4.9.3 Target Milestone|--- |5.3 Summary|tree-cfg.c dereferences a |[5/6 Regression] tree-cfg.c |NULL pointer |dereferences a NULL pointer --- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> --- > g++-4.9 -fpermissive -S t.ii t.ii: In function ‘void f()’: t.ii:7: warning: jump to label ‘l2’ t.ii:4: warning: from here t.ii:7: error: enters catch block so that we allow this with -fpermissive is new and possibly not a good idea as seen from the crash. >From gcc-bugs-return-496037-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Tue Sep 01 08:40:57 2015 Return-Path: <gcc-bugs-return-496037-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org> Delivered-To: listarch-gcc-bugs@gcc.gnu.org Received: (qmail 60435 invoked by alias); 1 Sep 2015 08:40:57 -0000 Mailing-List: contact gcc-bugs-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: <gcc-bugs.gcc.gnu.org> List-Archive: <http://gcc.gnu.org/ml/gcc-bugs/> List-Post: <mailto:gcc-bugs@gcc.gnu.org> List-Help: <mailto:gcc-bugs-help@gcc.gnu.org> Sender: gcc-bugs-owner@gcc.gnu.org Delivered-To: mailing list gcc-bugs@gcc.gnu.org Received: (qmail 60371 invoked by uid 48); 1 Sep 2015 08:40:52 -0000 From: "paolo.carlini at oracle dot com" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug c++/61753] poor diagnostic for constructor definition that starts with 'const' Date: Tue, 01 Sep 2015 08:40:00 -0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: c++ X-Bugzilla-Version: 4.7.2 X-Bugzilla-Keywords: diagnostic X-Bugzilla-Severity: normal X-Bugzilla-Who: paolo.carlini at oracle dot com X-Bugzilla-Status: RESOLVED X-Bugzilla-Resolution: FIXED X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org X-Bugzilla-Target-Milestone: 6.0 X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: bug_status resolution assigned_to target_milestone Message-ID: <bug-61753-4-mhLOn5eVvu@http.gcc.gnu.org/bugzilla/> In-Reply-To: <bug-61753-4@http.gcc.gnu.org/bugzilla/> References: <bug-61753-4@http.gcc.gnu.org/bugzilla/> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-SW-Source: 2015-09/txt/msg00015.txt.bz2 Content-length: 575 https://gcc.gnu.org/bugzilla/show_bug.cgi?ida753 Paolo Carlini <paolo.carlini at oracle dot com> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|ASSIGNED |RESOLVED Resolution|--- |FIXED Assignee|paolo.carlini at oracle dot com |unassigned at gcc dot gnu.org Target Milestone|--- |6.0 --- Comment #6 from Paolo Carlini <paolo.carlini at oracle dot com> --- Fixed. ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug middle-end/67409] [5/6 Regression] tree-cfg.c dereferences a NULL pointer 2015-08-31 14:26 [Bug c++/67409] New: tree-cfg.c dereferences a NULL pointer zeccav at gmail dot com 2015-08-31 14:44 ` [Bug middle-end/67409] " mpolacek at gcc dot gnu.org 2015-09-01 8:39 ` [Bug middle-end/67409] [5/6 Regression] " rguenth at gcc dot gnu.org @ 2015-09-01 8:46 ` mpolacek at gcc dot gnu.org 2015-09-01 8:51 ` [Bug c++/67409] " mpolacek at gcc dot gnu.org 2015-09-01 11:06 ` paolo.carlini at oracle dot com 4 siblings, 0 replies; 6+ messages in thread From: mpolacek at gcc dot gnu.org @ 2015-09-01 8:46 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67409 --- Comment #3 from Marek Polacek <mpolacek at gcc dot gnu.org> --- We stopped rejecting the code in r218328. ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c++/67409] [5/6 Regression] tree-cfg.c dereferences a NULL pointer 2015-08-31 14:26 [Bug c++/67409] New: tree-cfg.c dereferences a NULL pointer zeccav at gmail dot com ` (2 preceding siblings ...) 2015-09-01 8:46 ` mpolacek at gcc dot gnu.org @ 2015-09-01 8:51 ` mpolacek at gcc dot gnu.org 2015-09-01 11:06 ` paolo.carlini at oracle dot com 4 siblings, 0 replies; 6+ messages in thread From: mpolacek at gcc dot gnu.org @ 2015-09-01 8:51 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67409 Marek Polacek <mpolacek at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |paolo at gcc dot gnu.org Component|middle-end |c++ --- Comment #4 from Marek Polacek <mpolacek at gcc dot gnu.org> --- I think back to the c++ component. ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c++/67409] [5/6 Regression] tree-cfg.c dereferences a NULL pointer 2015-08-31 14:26 [Bug c++/67409] New: tree-cfg.c dereferences a NULL pointer zeccav at gmail dot com ` (3 preceding siblings ...) 2015-09-01 8:51 ` [Bug c++/67409] " mpolacek at gcc dot gnu.org @ 2015-09-01 11:06 ` paolo.carlini at oracle dot com 4 siblings, 0 replies; 6+ messages in thread From: paolo.carlini at oracle dot com @ 2015-09-01 11:06 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67409 Paolo Carlini <paolo.carlini at oracle dot com> changed: What |Removed |Added ---------------------------------------------------------------------------- CC|paolo at gcc dot gnu.org | --- Comment #5 from Paolo Carlini <paolo.carlini at oracle dot com> --- To clarify: pre-r218328 we didn't have a consistent status to which we may want to return: we had permerrors and then unconditional errors as part of the *explanations* (inform) of the permerrors. If we want unconditional errors instead of permerrors in some of those cases, it's certainly a different (easy) issue, just matter of going through all those we have and deciding which (we can also simplify a bit the code, the following informs are unconditional) ^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2015-09-01 11:06 UTC | newest] Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2015-08-31 14:26 [Bug c++/67409] New: tree-cfg.c dereferences a NULL pointer zeccav at gmail dot com 2015-08-31 14:44 ` [Bug middle-end/67409] " mpolacek at gcc dot gnu.org 2015-09-01 8:39 ` [Bug middle-end/67409] [5/6 Regression] " rguenth at gcc dot gnu.org 2015-09-01 8:46 ` mpolacek at gcc dot gnu.org 2015-09-01 8:51 ` [Bug c++/67409] " mpolacek at gcc dot gnu.org 2015-09-01 11:06 ` paolo.carlini at oracle dot com
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