https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92701
Bug ID: 92701
Summary: ICE assigning to assumed rank derived type component
Product: gcc
Version: 10.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: fortran
Assignee: unassigned at gcc dot gnu.org
Reporter: abensonca at gmail dot com
Target Milestone: ---
The following code causes an ICE with gfortran 10.0 (r278783):
module a
type :: r
end type r
type, extends(r) :: rr
double precision:: d
end type rr
contains
subroutine abd(p)
implicit none
class(r), intent(inout), dimension(..) :: p
double precision, dimension(:), allocatable :: d
select rank (p)
rank (1)
select type (p)
type is (rr)
allocate(d(size(p,dim=1)))
d=0.0d0
p%d=d
end select
end select
return
end subroutine abd
end module a
$ gfortran -v
Using built-in specs.
COLLECT_GCC=gfortran
COLLECT_LTO_WRAPPER=/home/abenson/Galacticus/Tools/libexec/gcc/x86_64-pc-linux-gnu/10.0.0/lto-wrapper
Target: x86_64-pc-linux-gnu
Configured with: ../gcc-trunk/configure --prefix=/home/abenson/Galacticus/Tools
--enable-languages=c,c++,fortran --disable-multilib : (reconfigured)
../gcc-trunk/configure --prefix=/home/abenson/Galacticus/Tools
--disable-multilib --enable-languages=c,c++,fortran,lto --no-create
--no-recursion
Thread model: posix
Supported LTO compression algorithms: zlib
gcc version 10.0.0 20191127 (experimental) (GCC)
$ gfortran -c bug.F90 -o bug.o
f951: internal compiler error: Segmentation fault
0xdd4adf crash_signal
../../gcc-trunk/gcc/toplev.c:328
0x7fa79dd101ef ???
/data001/abenson/Galacticus/Tools/glibc-2.12.1/signal/../sysdeps/unix/sysv/linux/x86_64/sigaction.c:0
0x7d41a1 gfc_check_vardef_context(gfc_expr*, bool, bool, bool, char const*)
../../gcc-trunk/gcc/fortran/expr.c:6237
0x84cff7 gfc_resolve_code(gfc_code*, gfc_namespace*)
../../gcc-trunk/gcc/fortran/resolve.c:11768
0x8508b7 resolve_codes
../../gcc-trunk/gcc/fortran/resolve.c:17180
0x83c2ce gfc_resolve(gfc_namespace*)
../../gcc-trunk/gcc/fortran/resolve.c:17215
0x83c2ce gfc_resolve(gfc_namespace*)
../../gcc-trunk/gcc/fortran/resolve.c:17194
0x84cc58 resolve_block_construct
../../gcc-trunk/gcc/fortran/resolve.c:10549
0x84cc58 gfc_resolve_code(gfc_code*, gfc_namespace*)
../../gcc-trunk/gcc/fortran/resolve.c:11899
0x84ef43 gfc_resolve_blocks(gfc_code*, gfc_namespace*)
../../gcc-trunk/gcc/fortran/resolve.c:10691
0x84fa0b resolve_select_type
../../gcc-trunk/gcc/fortran/resolve.c:9544
0x84cbe1 gfc_resolve_code(gfc_code*, gfc_namespace*)
../../gcc-trunk/gcc/fortran/resolve.c:11891
0x84ef43 gfc_resolve_blocks(gfc_code*, gfc_namespace*)
../../gcc-trunk/gcc/fortran/resolve.c:10691
0x84c3b8 gfc_resolve_code(gfc_code*, gfc_namespace*)
../../gcc-trunk/gcc/fortran/resolve.c:11654
0x8508b7 resolve_codes
../../gcc-trunk/gcc/fortran/resolve.c:17180
0x8507ee resolve_codes
../../gcc-trunk/gcc/fortran/resolve.c:17163
0x83c2ce gfc_resolve(gfc_namespace*)
../../gcc-trunk/gcc/fortran/resolve.c:17215
0x83c2ce gfc_resolve(gfc_namespace*)
../../gcc-trunk/gcc/fortran/resolve.c:17194
0x82f078 gfc_parse_file()
../../gcc-trunk/gcc/fortran/parse.c:6443
0x87f30f gfc_be_parse_file
../../gcc-trunk/gcc/fortran/f95-lang.c:210
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.
The ICE seems to be triggered by the "p%d=d" assignment.
