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From: "manu at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug c/59753] -Woverflow warning inconsistency with signed constant conversion between T_MAX+1 and UT_MAX vs larger than UT_MAX Date: Wed, 05 Feb 2014 16:47:00 -0000 [thread overview] Message-ID: <bug-59753-4-ofU59hOqmK@http.gcc.gnu.org/bugzilla/> (raw) In-Reply-To: <bug-59753-4@http.gcc.gnu.org/bugzilla/> http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59753 Manuel López-Ibáñez <manu at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |manu at gcc dot gnu.org --- Comment #5 from Manuel López-Ibáñez <manu at gcc dot gnu.org> --- (In reply to Vincent Lefèvre from comment #4) > There's still an inconsistency without -Wpedantic, which is the point of > this bug. I've changed the bug title to: > > -Woverflow warning inconsistency with signed constant conversion between > T_MAX+1 and UT_MAX vs larger than UT_MAX I seem to remember this inconsistency is due to the exact definition of overflow given in the standard. But I agree that this is confusing for the rest of humanity who don't know the standard by heart. Also, the warnings would be useful by default since they are likely mistakes. > If this inconsistency is intentional, then it should be documented. The > current behavior doesn't match the documentation: Agreed. >From gcc-bugs-return-442706-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Wed Feb 05 16:47:56 2014 Return-Path: <gcc-bugs-return-442706-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org> Delivered-To: listarch-gcc-bugs@gcc.gnu.org Received: (qmail 26926 invoked by alias); 5 Feb 2014 16:47:56 -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 26884 invoked by uid 48); 5 Feb 2014 16:47:53 -0000 From: "mpolacek at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug middle-end/59737] [4.9 Regression] ice from optimize_inline_calls Date: Wed, 05 Feb 2014 16:47:00 -0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: middle-end X-Bugzilla-Version: 4.9.0 X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: mpolacek at gcc dot gnu.org X-Bugzilla-Status: NEW X-Bugzilla-Priority: P1 X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org X-Bugzilla-Target-Milestone: 4.9.0 X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: cc Message-ID: <bug-59737-4-PL7u2r72Lp@http.gcc.gnu.org/bugzilla/> In-Reply-To: <bug-59737-4@http.gcc.gnu.org/bugzilla/> References: <bug-59737-4@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: 2014-02/txt/msg00463.txt.bz2 Content-length: 406 http://gcc.gnu.org/bugzilla/show_bug.cgi?idY737 Marek Polacek <mpolacek at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |mpolacek at gcc dot gnu.org --- Comment #3 from Marek Polacek <mpolacek at gcc dot gnu.org> --- Started with r206042.
next prev parent reply other threads:[~2014-02-05 16:47 UTC|newest] Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top 2014-01-10 10:19 [Bug c/59753] New: Missing -Woverflow warning with signed constant conversion between T_MAX+1 and UT_MAX vincent-gcc at vinc17 dot net 2014-02-05 10:49 ` [Bug c/59753] " mpolacek at gcc dot gnu.org 2014-02-05 11:40 ` vincent-gcc at vinc17 dot net 2014-02-05 15:51 ` mpolacek at gcc dot gnu.org 2014-02-05 16:40 ` [Bug c/59753] -Woverflow warning inconsistency with signed constant conversion between T_MAX+1 and UT_MAX vs larger than UT_MAX vincent-gcc at vinc17 dot net 2014-02-05 16:47 ` manu at gcc dot gnu.org [this message] 2014-02-05 17:31 ` vincent-gcc at vinc17 dot net
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