From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 46712 invoked by alias); 8 Oct 2015 15:21:01 -0000 Mailing-List: contact gcc-bugs-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: List-Archive: List-Post: List-Help: Sender: gcc-bugs-owner@gcc.gnu.org Received: (qmail 46650 invoked by uid 48); 8 Oct 2015 15:20:57 -0000 From: "jan.echternach at de dot gbs.com" To: gcc-bugs@gcc.gnu.org Subject: [Bug c/41517] Unexpected behaviour of #pragma in statement context Date: Thu, 08 Oct 2015 15:21:00 -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: 4.3.3 X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: jan.echternach at de dot gbs.com X-Bugzilla-Status: UNCONFIRMED X-Bugzilla-Resolution: X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org X-Bugzilla-Target-Milestone: --- X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: cc Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-SW-Source: 2015-10/txt/msg00592.txt.bz2 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D41517 Jan Echternach changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |jan.echternach at de dot g= bs.com --- Comment #1 from Jan Echternach --- I can confirm this bug in gcc 4.9 (Debian 4.9.2-10). A different example wh= ich also produces wrong code (should return 0, but returns 1): //#include int main () { if (0) #pragma GCC diagnostic ignored "-Wtype-limits" { //printf ("bug\n"); return 1; } //printf ("ok\n"); return 0; } And an example that fails to compile ("error: =E2=80=98else=E2=80=99 withou= t a previous =E2=80=98if=E2=80=99"): void foo (void) { if (0) #pragma GCC diagnostic ignored "-Wtype-limits" {} else {} } >>From gcc-bugs-return-499038-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Oct 08 15:37:22 2015 Return-Path: Delivered-To: listarch-gcc-bugs@gcc.gnu.org Received: (qmail 90421 invoked by alias); 8 Oct 2015 15:37:22 -0000 Mailing-List: contact gcc-bugs-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: List-Archive: List-Post: List-Help: Sender: gcc-bugs-owner@gcc.gnu.org Delivered-To: mailing list gcc-bugs@gcc.gnu.org Received: (qmail 90315 invoked by uid 48); 8 Oct 2015 15:37:17 -0000 From: "jamborm at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug tree-optimization/67794] [6 regression] internal compiler error: Segmentation fault Date: Thu, 08 Oct 2015 15:37:00 -0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: tree-optimization X-Bugzilla-Version: 6.0 X-Bugzilla-Keywords: ice-on-valid-code X-Bugzilla-Severity: normal X-Bugzilla-Who: jamborm at gcc dot gnu.org X-Bugzilla-Status: ASSIGNED X-Bugzilla-Resolution: X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: jamborm at gcc dot gnu.org X-Bugzilla-Target-Milestone: 6.0 X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: 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: 2015-10/txt/msg00593.txt.bz2 Content-length: 221 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67794 --- Comment #7 from Martin Jambor --- I have proposed a fix on the mailing list: https://gcc.gnu.org/ml/gcc-patches/2015-10/msg00858.html