https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117037
--- Comment #4 from fujin zhao <bigmagicreadsun at gmail dot com> ---
After adding the -freport-bug compilation option, the error message is as
follows:
[ 49%] Building CXX object
modules/dnn/CMakeFiles/opencv_dnn.dir/src/layers/reduce_layer.cpp.o
during GIMPLE pass: vect
opencv/modules/dnn/src/layers/reduce_layer.cpp: In member function 'void
cv::dnn::ReduceLayerImpl::ReduceAllInvoker<Op>::operator()(const cv::Range&)
const [with Op = cv::dnn::ReduceLayerImpl::ReduceProd<signed char>]':
opencv/modules/dnn/src/layers/reduce_layer.cpp:290:14: internal compiler error:
in vect_create_partial_epilog, at tree-vect-loop.cc:5866
290 | void operator()(const Range& r) const CV_OVERRIDE {
| ^~~~~~~~
0x7fddb57b7082 __libc_start_main
../csu/libc-start.c:308
Please submit a full bug report, with preprocessed source.
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.
The bug is not reproducible, so it is likely a hardware or OS problem.
make[2]: *** [modules/dnn/CMakeFiles/opencv_dnn.dir/build.make:1181:
modules/dnn/CMakeFiles/opencv_dnn.dir/src/layers/reduce_layer.cpp.o] Error 1
make[1]: *** [CMakeFiles/Makefile2:2564:
modules/dnn/CMakeFiles/opencv_dnn.dir/all] Error 2
make: *** [Makefile:163: all] Error 2
The current version information of g++:
riscv64-unknown-linux-gnu-g++ -v
Using built-in specs.
COLLECT_GCC=riscv64-unknown-linux-gnu-g++
COLLECT_LTO_WRAPPER=/2024-gcc14/gcc/bin/../libexec/gcc/riscv64-unknown-linux-gnu/14.2.1/lto-wrapper
Target: riscv64-unknown-linux-gnu
Configured with: /builds/software/devtools/riscv-gnu-toolchain/gcc/configure
--target=riscv64-unknown-linux-gnu
--prefix=/work/toolchain/install/linux64/glibc/2024-gcc14/gcc
--with-sysroot=/work/toolchain/install/linux64/glibc/2024-gcc14/gcc/sysroot
--with-pkgversion=gd92407a96 --with-system-zlib --enable-shared --enable-tls
--enable-languages=c,c++,fortran --disable-libmudflap --disable-libssp
--disable-libquadmath --disable-libsanitizer --disable-nls --disable-bootstrap
--src=/builds/software/devtools/riscv-gnu-toolchain/gcc --enable-multilib
--with-abi=lp64 --with-arch=rv64ima --with-tune=rocket --with-isa-spec=2.2
'CFLAGS_FOR_TARGET=-O2 -mcmodel=medany' 'CXXFLAGS_FOR_TARGET=-O2
-mcmodel=medany'
Thread model: posix
Supported LTO compression algorithms: zlib
gcc version 14.2.1 20240816 (gd92407a96)
