https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93486
Bug ID: 93486
Summary: ICE on valid with nested submodules and long submodule
names
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 causes an ICE with revision
ad690d79cfbb905c5546c9333c5fd089d906505b:
module ivs
interface l
module procedure l_
end interface l
contains
function l_()
end function l_
end module ivs
module aModeratleyLongModuleName
use ivs
interface
module subroutine cmo()
end subroutine cmo
end interface
end module aModeratleyLongModuleName
submodule (aModeratleyLongModuleName)
aNameForASubmoduleThatIsVeryLongButWhichIsLegalStill
contains
module procedure cmo
end procedure cmo
end submodule aNameForASubmoduleThatIsVeryLongButWhichIsLegalStill
submodule
(aModeratleyLongModuleName:aNameForASubmoduleThatIsVeryLongButWhichIsLegalStill)
sb
end submodule sb
submodule (aModeratleyLongModuleName:sb) sc
end submodule sc
$ gfortran -v
Using built-in specs.
COLLECT_GCC=gfortran
COLLECT_LTO_WRAPPER=/data001/abenson/Galacticus/Tools_Devel_Install/bin/../libexec/gcc/x86_64-pc-linux-gnu/10.0.1/lto-wrapper
Target: x86_64-pc-linux-gnu
Configured with: ../gcc-git/configure
--prefix=/home/abenson/Galacticus/Tools_Devel --enable-languages=c,c++,fortran
--disable-multilib
Thread model: posix
Supported LTO compression algorithms: zlib
gcc version 10.0.1 20200128 (experimental) (GCC)
$ gfortran -c test.F90 -o test.o
f951: internal compiler error: Segmentation fault
0xe1bc9f crash_signal
../../gcc-git/gcc/toplev.c:328
0x7f98119c71ef ???
/data001/abenson/Galacticus/Tools/glibc-2.12.1/signal/../sysdeps/unix/sysv/linux/x86_64/sigaction.c:0
0x84b3f0 gfc_use_modules()
../../gcc-git/gcc/fortran/module.c:7315
0x85acc8 use_modules
../../gcc-git/gcc/fortran/parse.c:114
0x866daa parse_module
../../gcc-git/gcc/fortran/parse.c:6111
0x86733c gfc_parse_file()
../../gcc-git/gcc/fortran/parse.c:6428
0x8b780f gfc_be_parse_file
../../gcc-git/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 goes away if the module and/or submodule names are made shorter.
