From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 105797 invoked by alias); 9 Sep 2015 11:03:54 -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 105764 invoked by uid 48); 9 Sep 2015 11:03:50 -0000 From: "mpolacek at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug middle-end/67512] New: [5/6 Regression] internal compiler error: in invert_tree_comparison, at fold-const.c:2456 Date: Wed, 09 Sep 2015 11:03:00 -0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: new X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: middle-end X-Bugzilla-Version: 5.2.0 X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: mpolacek at gcc dot gnu.org 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: bug_id short_desc product version bug_status bug_severity priority component assigned_to reporter target_milestone Message-ID: 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: 2015-09/txt/msg00703.txt.bz2 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D67512 Bug ID: 67512 Summary: [5/6 Regression] internal compiler error: in invert_tree_comparison, at fold-const.c:2456 Product: gcc Version: 5.2.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: middle-end Assignee: unassigned at gcc dot gnu.org Reporter: mpolacek at gcc dot gnu.org Target Milestone: --- The following ICEs on x86_64-pc-linux-gnu: $ ./cc1 -quiet ice.c -O -Wmaybe-uninitialized ice.c: In function =E2=80=98fn1=E2=80=99: ice.c:9:22: warning: =E2=80=98m=E2=80=99 may be used uninitialized in this = function [-Wmaybe-uninitialized] z =3D 1 =3D=3D m ? z : 2 =3D=3D m; ^ ice.c:4:1: internal compiler error: in invert_tree_comparison, at fold-const.c:2456 fn1 (void) ^ 0xa0288f invert_tree_comparison(tree_code, bool) /home/marek/src/gcc/gcc/fold-const.c:2456 0xfb8bb4 pred_equal_p /home/marek/src/gcc/gcc/tree-ssa-uninit.c:1300 0xfb8cc5 is_pred_expr_subset_of /home/marek/src/gcc/gcc/tree-ssa-uninit.c:1349 0xfb8eb2 is_pred_chain_subset_of /home/marek/src/gcc/gcc/tree-ssa-uninit.c:1399 0xfb8f44 is_included_in /home/marek/src/gcc/gcc/tree-ssa-uninit.c:1428 0xfb8fcd is_superset_of /home/marek/src/gcc/gcc/tree-ssa-uninit.c:1459 0xfbaaed is_use_properly_guarded /home/marek/src/gcc/gcc/tree-ssa-uninit.c:2239 0xfbac41 find_uninit_use /home/marek/src/gcc/gcc/tree-ssa-uninit.c:2283 0xfbae9e warn_uninitialized_phi /home/marek/src/gcc/gcc/tree-ssa-uninit.c:2353 0xfbb3a7 execute /home/marek/src/gcc/gcc/tree-ssa-uninit.c:2463 Please submit a full bug report, with preprocessed source if appropriate. Please include the complete backtrace with any bug report. See for instructions. extern int fn2 (void); extern int fn3 (int); void fn1 (void) { int z, m; if (1 & m) z =3D fn2 (); z =3D 1 =3D=3D m ? z : 2 =3D=3D m; fn3 (z); } >>From gcc-bugs-return-496726-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Wed Sep 09 11:04:24 2015 Return-Path: Delivered-To: listarch-gcc-bugs@gcc.gnu.org Received: (qmail 107150 invoked by alias); 9 Sep 2015 11:04:23 -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 107115 invoked by uid 48); 9 Sep 2015 11:04:20 -0000 From: "mpolacek at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug middle-end/67512] [5/6 Regression] internal compiler error: in invert_tree_comparison, at fold-const.c:2456 Date: Wed, 09 Sep 2015 11:04:00 -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: 5.2.0 X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: mpolacek at gcc dot gnu.org X-Bugzilla-Status: NEW X-Bugzilla-Resolution: X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org X-Bugzilla-Target-Milestone: 5.3 X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: bug_status cf_reconfirmed_on target_milestone everconfirmed 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: 2015-09/txt/msg00704.txt.bz2 Content-length: 547 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67512 Marek Polacek changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |NEW Last reconfirmed| |2015-09-09 Target Milestone|--- |5.3 Ever confirmed|0 |1 --- Comment #1 from Marek Polacek --- Started with r219739.