From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 3904 invoked by alias); 4 Nov 2012 20:41:24 -0000 Received: (qmail 3866 invoked by uid 55); 4 Nov 2012 20:41:11 -0000 From: "harper at msor dot vuw.ac.nz" To: gcc-bugs@gcc.gnu.org Subject: [Bug fortran/55174] [4.6 Regression] Segmentation fault with bad array reference Date: Sun, 04 Nov 2012 20:41:00 -0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: fortran X-Bugzilla-Keywords: ice-on-invalid-code X-Bugzilla-Severity: normal X-Bugzilla-Who: harper at msor dot vuw.ac.nz X-Bugzilla-Status: NEW X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org X-Bugzilla-Target-Milestone: --- X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/ Auto-Submitted: auto-generated Content-Type: text/plain; charset="UTF-8" MIME-Version: 1.0 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 X-SW-Source: 2012-11/txt/msg00309.txt.bz2 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55174 --- Comment #3 from harper at msor dot vuw.ac.nz 2012-11-04 20:41:10 UTC --- On Fri, 2 Nov 2012, janus at gcc dot gnu.org wrote: > Date: Fri, 2 Nov 2012 10:54:50 +0000 > From: janus at gcc dot gnu.org > To: john.harper@vuw.ac.nz > Subject: [Bug fortran/55174] [4.6 Regression] Segmentation fault with bad > array reference > Resent-Date: Fri, 2 Nov 2012 10:55:07 +0000 > Resent-From: > > > http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55174 > > janus at gcc dot gnu.org changed: > > What |Removed |Added > ---------------------------------------------------------------------------- > Keywords| |ice-on-invalid-code > Status|UNCONFIRMED |NEW > Last reconfirmed| |2012-11-02 > CC| |janus at gcc dot gnu.org > Summary|internal compiler error: |[4.6 Regression] > |Segmentation fault with bad |Segmentation fault with bad > |array reference |array reference > Ever Confirmed|0 |1 > > --- Comment #2 from janus at gcc dot gnu.org 2012-11-02 10:54:50 UTC --- > (In reply to comment #1) >> It looks like it has been fixed on trunk (aka 4.8.0). > > For me it also works with: > > gcc version 4.7.2 20120920 [gcc-4_7-branch revision 191568] (SUSE Linux) > > (while it fails with 4.7.0 and 4.6.0). > > Note: The 4.6 branch is still maintained, so we should consider fixing it > there. > > -- > Configure bugmail: http://gcc.gnu.org/bugzilla/userprefs.cgi?tab=email > ------- You are receiving this mail because: ------- > You reported the bug. I have just tried gfortran 4.7.1 (x86_64-unknown-linux-gnu) and it gave the internal compiler error with my program. So it seems that 4.7.0 and 4.7.1 both have the bug and 4.7.2 does not. Evidence: miro[~]$ cat trybadstar.f90 implicit none integer:: array(2)=(/42,666/) print *, size(array(*)) end miro[~]$ gf7 -v trybadstar.f90 Driving: /home/harperj1/gcc47/gf/bin/gfortran -v trybadstar.f90 -l gfortran -l m -shared-libgcc Using built-in specs. COLLECT_GCC=/home/harperj1/gcc47/gf/bin/gfortran COLLECT_LTO_WRAPPER=/home/harperj1/gcc47/gf/libexec/gcc/x86_64-unknown-linux-gnu/4.7.1/lto-wrapper Target: x86_64-unknown-linux-gnu Configured with: /home/harperj1/gcc47/gcc-4.7.1/configure --prefix=/home/harperj1/gcc47/gf --enable-languages=c,fortran --disable-libada --with-local-prefix=/home/harperj1/gcc47 --with-gmp=/home/harperj1/gcc47 Thread model: posix gcc version 4.7.1 (GCC) COLLECT_GCC_OPTIONS='-v' '-shared-libgcc' '-mtune=generic' '-march=x86-64' /home/harperj1/gcc47/gf/libexec/gcc/x86_64-unknown-linux-gnu/4.7.1/f951 trybadstar.f90 -quiet -dumpbase trybadstar.f90 -mtune=generic -march=x86-64 -auxbase trybadstar -version -fintrinsic-modules-path /home/harperj1/gcc47/gf/lib/gcc/x86_64-unknown-linux-gnu/4.7.1/finclude -o /tmp/ccFXH0I1.s GNU Fortran (GCC) version 4.7.1 (x86_64-unknown-linux-gnu) compiled by GNU C version 4.7.1, GMP version 4.3.1, MPFR version 2.4.1, MPC version 0.8 GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072 GNU Fortran (GCC) version 4.7.1 (x86_64-unknown-linux-gnu) compiled by GNU C version 4.7.1, GMP version 4.3.1, MPFR version 2.4.1, MPC version 0.8 GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072 f951: internal compiler error: Segmentation fault Please submit a full bug report, with preprocessed source if appropriate. See for instructions. miro[~]$ -- John Harper, School of Mathematics Statistics and Operations Research Victoria University, PO Box 600, Wellington 6140, New Zealand e-mail john.harper@vuw.ac.nz phone (+64)(4)463 5276 fax (+64)(4)463 5045