[Bug fortran/56731] [4.7 Regression] ICE on (wrongly) referencing polymorphic array in select type

[tiloschwarz at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56731

--- Comment #4 from tiloschwarz at gcc dot gnu.org 2013-03-26 17:05:47 UTC ---
(In reply to comment #2)
> AFAICT this has been fixed by revision 187192 (pr41600). I don't think this is
> a regression: I get the ICE for 4.5.3, 4.6.3, and 4.7.2 (CLASS is not part of
> 4.4).

Interesting, I get no ICE with 4.6.3 (I used the installed compiler on Debian,
maybe it is a somehow patched version? Probably a bad idea to use an installed
compiler to test this ...):

% uname -a
Linux dellschleppa 3.2.0-4-686-pae #1 SMP Debian 3.2.39-2 i686 GNU/Linux

% cat /etc/debian_version 
7.0

% gfortran-4.6 -v polymorph2.f08
Driving: gfortran-4.6 -v polymorph2.f08 -l gfortran -l m -shared-libgcc
Using built-in specs.
COLLECT_GCC=gfortran-4.6
COLLECT_LTO_WRAPPER=/usr/lib/gcc/i486-linux-gnu/4.6/lto-wrapper
Target: i486-linux-gnu
Configured with: ../src/configure -v --with-pkgversion='Debian 4.6.3-14'
--with-bugurl=file:///usr/share/doc/gcc-4.6/README.Bugs
--enable-languages=c,c++,fortran,objc,obj-c++ --prefix=/usr
--program-suffix=-4.6 --enable-shared --enable-linker-build-id
--with-system-zlib --libexecdir=/usr/lib --without-included-gettext
--enable-threads=posix --with-gxx-include-dir=/usr/include/c++/4.6
--libdir=/usr/lib --enable-nls --with-sysroot=/ --enable-clocale=gnu
--enable-libstdcxx-debug --enable-libstdcxx-time=yes --enable-gnu-unique-object
--enable-plugin --enable-objc-gc --enable-targets=all --with-arch-32=i586
--with-tune=generic --enable-checking=release --build=i486-linux-gnu
--host=i486-linux-gnu --target=i486-linux-gnu
Thread model: posix
gcc version 4.6.3 (Debian 4.6.3-14) 
COLLECT_GCC_OPTIONS='-v' '-shared-libgcc' '-mtune=generic' '-march=i586'
 /usr/lib/gcc/i486-linux-gnu/4.6/f951 polymorph2.f08 -quiet -dumpbase
polymorph2.f08 -mtune=generic -march=i586 -auxbase polymorph2 -version
-fintrinsic-modules-path /usr/lib/gcc/i486-linux-gnu/4.6/finclude -o
/tmp/ccUKC6Je.s
GNU Fortran (Debian 4.6.3-14) version 4.6.3 (i486-linux-gnu)
        compiled by GNU C version 4.6.3, GMP version 5.0.5, MPFR version
3.1.0-p10, MPC version 0.9
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
GNU Fortran (Debian 4.6.3-14) version 4.6.3 (i486-linux-gnu)
        compiled by GNU C version 4.6.3, GMP version 5.0.5, MPFR version
3.1.0-p10, MPC version 0.9
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
polymorph2.f08:20.12:

            c = an
            1
Error: Incompatible ranks 0 and 1 in assignment at (1)