https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93313
Bug ID: 93313
Summary: g++: internal compiler error: Segmentation fault
signal terminated program cc1plus
Product: gcc
Version: 9.2.1
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: herschel at hep dot phy.cam.ac.uk
Target Milestone: ---
I would like to report an apparent bug in the c++ compiler: the compiler
segfaults when trying to compile my code, and it asks me to report the bug.
I wrote my program to evaluate a large expression (a polynomial). For smaller
expressions (200 KB), the program compiles without problems. However, for this
large expression (23 MB), the compiler segfaults.
The compiler isn't running out of RAM (it used only ~8GB before crashing, even
on a machine with ~200 GB RAM).
I have tried compiling on my laptop [gcc version 9.2.1 20191008 (Ubuntu
9.2.1-9ubuntu2)] as well as on a server [gcc version 7.3.1 20180303 (Red Hat
7.3.1-5) (GCC)].
Here is the output of "gcc -v":
Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/usr/lib/gcc/x86_64-linux-gnu/9/lto-wrapper
OFFLOAD_TARGET_NAMES=nvptx-none:hsa
OFFLOAD_TARGET_DEFAULT=1
Target: x86_64-linux-gnu
Configured with: ../src/configure -v --with-pkgversion='Ubuntu 9.2.1-9ubuntu2'
--with-bugurl=file:///usr/share/doc/gcc-9/README.Bugs
--enable-languages=c,ada,c++,go,brig,d,fortran,objc,obj-c++,gm2 --prefix=/usr
--with-gcc-major-version-only --program-suffix=-9
--program-prefix=x86_64-linux-gnu- --enable-shared --enable-linker-build-id
--libexecdir=/usr/lib --without-included-gettext --enable-threads=posix
--libdir=/usr/lib --enable-nls --enable-bootstrap --enable-clocale=gnu
--enable-libstdcxx-debug --enable-libstdcxx-time=yes
--with-default-libstdcxx-abi=new --enable-gnu-unique-object
--disable-vtable-verify --enable-plugin --enable-default-pie --with-system-zlib
--with-target-system-zlib=auto --enable-multiarch --disable-werror
--with-arch-32=i686 --with-abi=m64 --with-multilib-list=m32,m64,mx32
--enable-multilib --with-tune=generic --enable-offload-targets=nvptx-none,hsa
--without-cuda-driver --enable-checking=release --build=x86_64-linux-gnu
--host=x86_64-linux-gnu --target=x86_64-linux-gnu
Thread model: posix
gcc version 9.2.1 20191008 (Ubuntu 9.2.1-9ubuntu2)
Here is the command I used to try to compile my program:
g++ myexample.cpp -o myexample -I/home/herschel/usr/include/firefly/
-L/home/herschel/usr/lib/firefly -lfirefly -lgmp -lz -lflint -lgmpxx
-save-temps
Here is the complete output from gcc:
g++: internal compiler error: Segmentation fault signal terminated program
cc1plus
Please submit a full bug report,
with preprocessed source if appropriate.
See <file:///usr/share/doc/gcc-9/README.Bugs> for instructions.
The pre-processed file "myexample.ii" is large (25MB), for the reasons
explained at the start of this report. This makes it too large to include as an
attachment, and I have instead uploaded it to:
https://www.hep.phy.cam.ac.uk/~herschel/myexample.ii
