Unfortunately, I have not succeeded in building short example that brokes compiler. So, in order to reproduce the issue one should get file located in GitHub. https://github.com/oseledets/tt-fort/blob/658ae2d9148148fb4933de2dda2434aee0b94c39/dispmodule.f90 - GNU Fortran (GCC) 7.3.1 20180406 - x86_64 GNU/Linux - GNU Fortran distributed with ArchLinux or Ubuntu 18.04 LTS $ gfortran -v Using built-in specs. COLLECT_GCC=gfortran COLLECT_LTO_WRAPPER=/usr/lib/gcc/x86_64-pc-linux-gnu/7.3.1/lto-wrapper Target: x86_64-pc-linux-gnu Configured with: /build/gcc/src/gcc/configure --prefix=/usr --libdir=/usr/lib --libexecdir=/usr/lib --mandir=/usr/share/man --infodir=/usr/share/info --with-bugurl=https://bugs.archlinux.org/ --enable-languages=c,c++,ada,fortran,go,lto,objc,obj-c++ --enable-shared --enable-threads=posix --enable-libmpx --with-system-zlib --with-isl --enable-__cxa_atexit --disable-libunwind-exceptions --enable-clocale=gnu --disable-libstdcxx-pch --disable-libssp --enable-gnu-unique-object --enable-linker-build-id --enable-lto --enable-plugin --enable-install-libiberty --with-linker-hash-style=gnu --enable-gnu-indirect-function --enable-multilib --disable-werror --enable-checking=release --enable-default-pie --enable-default-ssp Thread model: posix gcc version 7.3.1 20180406 (GCC) - With fortran source located at https://github.com/oseledets/tt-fort/blob/658ae2d9148148fb4933de2dda2434aee0b94c39/dispmodule.f90 $ gfortran -fdefault-integer-8 -ffree-line-length-none -O3 -fPIC -c dispmodule.f90 dispmodule.f90:1248:0: character(widthmax_dint(x, fmt)) :: sa(size(x)) internal compiler error: in conv_function_val, at fortran/trans-expr.c:3717 - Files generated by adding -save-temps $ cat dispmodule.s .file "dispmodule.f90"
(In reply to Daniel Bershatsky from comment #0) > Unfortunately, I have not succeeded in building short example that brokes > compiler. So, in order to reproduce the issue one should get file located in Unfortunately, we'll need a reduced testcase. Downloading the source package from github, and making suitable changes to Makefile to invoke gfortran 9.0.0, I can compile the code. > dispmodule.f90 > dispmodule.f90:1248:0: > > character(widthmax_dint(x, fmt)) :: sa(size(x)) > This may have been fixed by a patch I submitted today.
> This may have been fixed by a patch I submitted today. I confirmed that the PR is fixed by the patch at https://gcc.gnu.org/ml/fortran/2018-06/msg00013.html
(In reply to Dominique d'Humieres from comment #2) > > This may have been fixed by a patch I submitted today. > > I confirmed that the PR is fixed by the patch at > > https://gcc.gnu.org/ml/fortran/2018-06/msg00013.html That's great! I will check it out by myself and will be back. Will this patch be applyed to gfortran branches 6.*, 7.*, and 8.*? If it were not I would like to get a guidance how to avoid the issue. There are lots of users who are using these obsolete fortran versions.
On Wed, Jun 06, 2018 at 11:17:42AM +0000, daniel.bershatsky at skolkovotech dot ru wrote: > https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86051 > > --- Comment #3 from Daniel Bershatsky <daniel.bershatsky at skolkovotech dot ru> --- > (In reply to Dominique d'Humieres from comment #2) > > > This may have been fixed by a patch I submitted today. > > > > I confirmed that the PR is fixed by the patch at > > > > https://gcc.gnu.org/ml/fortran/2018-06/msg00013.html > > That's great! I will check it out by myself and will be back. > > Will this patch be applyed to gfortran branches 6.*, 7.*, and 8.*? If it were > not I would like to get a guidance how to avoid the issue. There are lots of > users who are using these obsolete fortran versions. > It will be back ported. (Well, at least an attempt will be made to back port the patch, but it should apply with little change).
Author: kargl Date: Sat Jun 9 15:47:40 2018 New Revision: 261362 URL: https://gcc.gnu.org/viewcvs?rev=261362&root=gcc&view=rev Log: 2018-06-09 Steven G. Kargl <kargl@gcc.gnu.org> PR fortran/85138 PR fortran/85996 PR fortran/86051 * decl.c (gfc_match_char_spec): Use private namespace in attempt to reduce a charlen to a constant. 2018-06-09 Steven G. Kargl <kargl@gcc.gnu.org> PR fortran/85138 PR fortran/85996 PR fortran/86051 * gfortran.dg/pr85138_1.f90: New test. * gfortran.dg/pr85138_2.f90: Ditto. * gfortran.dg/pr85996.f90: Ditto. Added: trunk/gcc/testsuite/gfortran.dg/pr85138_1.f90 trunk/gcc/testsuite/gfortran.dg/pr85138_2.f90 trunk/gcc/testsuite/gfortran.dg/pr85996.f90 Modified: trunk/gcc/fortran/ChangeLog trunk/gcc/fortran/decl.c trunk/gcc/testsuite/ChangeLog
Author: kargl Date: Sat Jun 9 18:09:00 2018 New Revision: 261370 URL: https://gcc.gnu.org/viewcvs?rev=261370&root=gcc&view=rev Log: 2018-06-09 Steven G. Kargl <kargl@gcc.gnu.org> PR fortran/85138 PR fortran/85996 PR fortran/86051 * decl.c (gfc_match_char_spec): Use private namespace in attempt to reduce a charlen to a constant. 2018-06-09 Steven G. Kargl <kargl@gcc.gnu.org> PR fortran/85138 PR fortran/85996 PR fortran/86051 * gfortran.dg/pr85138_1.f90: New test. * gfortran.dg/pr85138_2.f90: Ditto. * gfortran.dg/pr85996.f90: Ditto. Added: branches/gcc-8-branch/gcc/testsuite/gfortran.dg/pr85138_1.f90 branches/gcc-8-branch/gcc/testsuite/gfortran.dg/pr85138_2.f90 branches/gcc-8-branch/gcc/testsuite/gfortran.dg/pr85996.f90 Modified: branches/gcc-8-branch/gcc/fortran/ChangeLog branches/gcc-8-branch/gcc/fortran/decl.c branches/gcc-8-branch/gcc/testsuite/ChangeLog
Author: kargl Date: Sat Jun 9 18:29:40 2018 New Revision: 261371 URL: https://gcc.gnu.org/viewcvs?rev=261371&root=gcc&view=rev Log: 2018-06-09 Steven G. Kargl <kargl@gcc.gnu.org> PR fortran/85138 PR fortran/85996 PR fortran/86051 * decl.c (gfc_match_char_spec): Use private namespace in attempt to reduce a charlen to a constant. 2018-06-09 Steven G. Kargl <kargl@gcc.gnu.org> PR fortran/85138 PR fortran/85996 PR fortran/86051 * gfortran.dg/pr85138_1.f90: New test. * gfortran.dg/pr85138_2.f90: Ditto. * gfortran.dg/pr85996.f90: Ditto. Added: branches/gcc-7-branch/gcc/testsuite/gfortran.dg/pr85138_1.f90 branches/gcc-7-branch/gcc/testsuite/gfortran.dg/pr85138_2.f90 branches/gcc-7-branch/gcc/testsuite/gfortran.dg/pr85996.f90 Modified: branches/gcc-7-branch/gcc/fortran/ChangeLog branches/gcc-7-branch/gcc/fortran/decl.c branches/gcc-7-branch/gcc/testsuite/ChangeLog
Author: kargl Date: Sat Jun 9 18:35:58 2018 New Revision: 261372 URL: https://gcc.gnu.org/viewcvs?rev=261372&root=gcc&view=rev Log: 2018-06-09 Steven G. Kargl <kargl@gcc.gnu.org> PR fortran/85138 PR fortran/85996 PR fortran/86051 * decl.c (gfc_match_char_spec): Use private namespace in attempt to reduce a charlen to a constant. 2018-06-09 Steven G. Kargl <kargl@gcc.gnu.org> PR fortran/85138 PR fortran/85996 PR fortran/86051 * gfortran.dg/pr85138_1.f90: New test. * gfortran.dg/pr85138_2.f90: Ditto. * gfortran.dg/pr85996.f90: Ditto. Added: branches/gcc-6-branch/gcc/testsuite/gfortran.dg/pr85138_1.f90 branches/gcc-6-branch/gcc/testsuite/gfortran.dg/pr85138_2.f90 branches/gcc-6-branch/gcc/testsuite/gfortran.dg/pr85996.f90 Modified: branches/gcc-6-branch/gcc/fortran/ChangeLog branches/gcc-6-branch/gcc/fortran/decl.c branches/gcc-6-branch/gcc/testsuite/ChangeLog
Fixed on trunk and 6, 7, and 8 branches.