Current mainline gfortran ICEs when compiling the following code with -Wall:
module linebufmod implicit none type linebuf character(len=80), dimension(:), pointer :: data=>NULL() end type linebuf contains subroutine linebuf_add (buf) type(linebuf), intent(inout) :: buf buf%data(1) = "blah" end subroutine linebuf_add end module linebufmod ~/tmp>gfortran -v -c linebufmod.F90 -Wall Using built-in specs. Target: i686-pc-linux-gnu Configured with: /scratch/martin/gcc/configure --prefix=/afs/mpa/data/martin/ugcc --enable-languages=c++,fortran Thread model: posix gcc version 4.3.0 20070108 (experimental) /afs/mpa/data/martin/ugcc/libexec/gcc/i686-pc-linux-gnu/4.3.0/cc1 -E -lang-fortran -traditional-cpp -D_LANGUAGE_FORTRAN -quiet -v linebufmod.F90 -mtune=generic -Wall -o /tmp/ccEpYWVk.f95 ignoring nonexistent directory "/afs/mpa/data/martin/ugcc/lib/gcc/i686-pc-linux-gnu/4.3.0/../../../../i686-pc-linux-gnu/include" #include "..." search starts here: #include <...> search starts here: /usr/local/include /afs/mpa/data/martin/ugcc/include /afs/mpa/data/martin/ugcc/lib/gcc/i686-pc-linux-gnu/4.3.0/include /usr/include End of search list. /afs/mpa/data/martin/ugcc/libexec/gcc/i686-pc-linux-gnu/4.3.0/f951 /tmp/ccEpYWVk.f95 -ffree-form -quiet -dumpbase linebufmod.F90 -mtune=generic -auxbase linebufmod -Wall -version -fpreprocessed -fintrinsic-modules-path /afs/mpa/data/martin/ugcc/lib/gcc/i686-pc-linux-gnu/4.3.0/finclude -o /tmp/cc0Iohmw.s GNU F95 version 4.3.0 20070108 (experimental) (i686-pc-linux-gnu) compiled by GNU C version 4.3.0 20070108 (experimental). GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096 linebufmod.F90:0: internal compiler error: Segmentation fault Please submit a full bug report, with preprocessed source if appropriate. See <URL:http://gcc.gnu.org/bugs.html> for instructions. -- Summary: [gfortran, 4.3 regression]: ICE on valid with -Wall Product: gcc Version: 4.3.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: fortran AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: martin at mpa-garching dot mpg dot de GCC build triplet: i686-pc-linux-gnu GCC host triplet: i686-pc-linux-gnu GCC target triplet: i686-pc-linux-gnu http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30408