https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106109
Bug ID: 106109
Summary: Internal compiler error
Product: gcc
Version: 12.1.1
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: philip.deegan at gmail dot com
Target Milestone: ---
Hi,
With the release of FC36 and GCC12, we've begun to get an internal compiler
error for the following code,
https://github.com/PHAREHUB/PHARE/blob/master/tests/core/data/electrons/test_electrons.cpp#L464-L519
Firstly it says "invalid use of auto", but adding "-> void" to the lambda
resolves this, however following that we get an internal compiler error.
```
/io/tests/core/data/electrons/test_electrons.cpp: In member function ‘void
ElectronsTest_ThatElectronsVelocityEqualIonVelocityMinusJ_Test<gtest_TypeParam_>::TestBody()
[with gtest_TypeParam_ = std::pair<PHARE::core::DimConst<3>,
PHARE::core::InterpConst<1> >]’:
/io/tests/core/data/electrons/test_electrons.cpp:519:10: internal compiler
error: Segmentation fault
519 | check(this->Vex, this->Vix, this->Jx, Ne, GridYee::JxToMoments);
| ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Please submit a full bug report, with preprocessed source.
See <http://bugzilla.redhat.com/bugzilla> for instructions.
Preprocessed source stored into /tmp/ccCpGiQv.out file, please attach this to
your bugreport.
ninja: build stopped: subcommand failed.
```
```
gcc -v
Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/usr/libexec/gcc/x86_64-redhat-linux/12/lto-wrapper
OFFLOAD_TARGET_NAMES=nvptx-none
OFFLOAD_TARGET_DEFAULT=1
Target: x86_64-redhat-linux
Configured with: ../configure --enable-bootstrap
--enable-languages=c,c++,fortran,objc,obj-c++,ada,go,d,lto --prefix=/usr
--mandir=/usr/share/man --infodir=/usr/share/info
--with-bugurl=http://bugzilla.redhat.com/bugzilla --enable-shared
--enable-threads=posix --enable-checking=release --enable-multilib
--with-system-zlib --enable-__cxa_atexit --disable-libunwind-exceptions
--enable-gnu-unique-object --enable-linker-build-id
--with-gcc-major-version-only --enable-libstdcxx-backtrace
--with-linker-hash-style=gnu --enable-plugin --enable-initfini-array
--with-isl=/builddir/build/BUILD/gcc-12.1.1-20220507/obj-x86_64-redhat-linux/isl-install
--enable-offload-targets=nvptx-none --without-cuda-driver
--enable-offload-defaulted --enable-gnu-indirect-function --enable-cet
--with-tune=generic --with-arch_32=i686 --build=x86_64-redhat-linux
--with-build-config=bootstrap-lto --enable-link-serialization=1
Thread model: posix
Supported LTO compression algorithms: zlib zstd
gcc version 12.1.1 20220507 (Red Hat 12.1.1-1) (GCC)
```
ccCpGiQv.out is uploaded here:
https://gist.github.com/PhilipDeegan/c47eb44c96f579aa62d23ab1b5f2daa0
Changing to use a free templated function fails.
Commenting out the code inside the lambda fails.
If you have any issues building, we provide some Dockerfiles.
If this is in the wrong place please let me know.
Happy to test things to help investigate.
Thanks
