https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103874
--- Comment #1 from Aurelien Jarno <aurelien at aurel32 dot net> --- Sorry I submitted the bug by mistake without filling a comment. pytorch failed to build in Debian on riscv64 following the switch to GCC 11 by default: https://buildd.debian.org/status/fetch.php?pkg=pytorch&arch=riscv64&ver=1.8.1-2%2Bb3&stamp=1640951671&raw=0 I have extracted a reproducer (attached), here are the output with GCC 10, 11 and 12: aurel32@beaglev:~/pytorch$ gcc-10 -v Using built-in specs. COLLECT_GCC=gcc-10 COLLECT_LTO_WRAPPER=/usr/lib/gcc/riscv64-linux-gnu/10/lto-wrapper Target: riscv64-linux-gnu Configured with: ../src/configure -v --with-pkgversion='Debian 10.3.0-13' --with-bugurl=file:///usr/share/doc/gcc-10/README.Bugs --enable-languages=c,ada,c++,go,d,fortran,objc,obj-c++,m2 --prefix=/usr --with-gcc-major-version-only --program-suffix=-10 --program-prefix=riscv64-linux-gnu- --enable-shared --enable-linker-build-id --libexecdir=/usr/lib --without-included-gettext --enable-threads=posix --libdir=/usr/lib --enable-nls --enable-clocale=gnu --enable-libstdcxx-debug --enable-libstdcxx-time=yes --with-default-libstdcxx-abi=new --enable-gnu-unique-object --disable-libitm --disable-libsanitizer --disable-libquadmath --disable-libquadmath-support --enable-plugin --enable-default-pie --with-system-zlib --enable-libphobos-checking=release --with-target-system-zlib=auto --enable-objc-gc=auto --enable-multiarch --disable-werror --disable-multilib --with-arch=rv64imafdc --with-abi=lp64d --enable-checking=release --build=riscv64-linux-gnu --host=riscv64-linux-gnu --target=riscv64-linux-gnu Thread model: posix Supported LTO compression algorithms: zlib zstd gcc version 10.3.1 20211117 (Debian 10.3.0-13) aurel32@beaglev:~/pytorch$ /usr/bin/gcc-10 -gsplit-dwarf -O2 -g -fPIC -std=c90 -c ./onnxifi_loader.c.i aurel32@beaglev:~/pytorch$ aurel32@beaglev:~/pytorch$ gcc-11 -v Using built-in specs. COLLECT_GCC=gcc-11 COLLECT_LTO_WRAPPER=/usr/lib/gcc/riscv64-linux-gnu/11/lto-wrapper Target: riscv64-linux-gnu Configured with: ../src/configure -v --with-pkgversion='Debian 11.2.0-13' --with-bugurl=file:///usr/share/doc/gcc-11/README.Bugs --enable-languages=c,ada,c++,go,d,fortran,objc,obj-c++,m2 --prefix=/usr --with-gcc-major-version-only --program-suffix=-11 --program-prefix=riscv64-linux-gnu- --enable-shared --enable-linker-build-id --libexecdir=/usr/lib --without-included-gettext --enable-threads=posix --libdir=/usr/lib --enable-nls --enable-clocale=gnu --enable-libstdcxx-debug --enable-libstdcxx-time=yes --with-default-libstdcxx-abi=new --enable-gnu-unique-object --disable-libitm --disable-libquadmath --disable-libquadmath-support --enable-plugin --enable-default-pie --with-system-zlib --enable-libphobos-checking=release --with-target-system-zlib=auto --enable-objc-gc=auto --enable-multiarch --disable-werror --disable-multilib --with-arch=rv64imafdc --with-abi=lp64d --enable-checking=release --build=riscv64-linux-gnu --host=riscv64-linux-gnu --target=riscv64-linux-gnu --with-build-config=bootstrap-lto-lean --enable-link-serialization=2 Thread model: posix Supported LTO compression algorithms: zlib zstd gcc version 11.2.0 (Debian 11.2.0-13) (sid-riscv64)aurel32@beaglev:~/pytorch$ /usr/bin/gcc-11 -gsplit-dwarf -O2 -g -fPIC -std=c90 -c ./onnxifi_loader.c.i /home/aurel32/pytorch/pytorch-1.8.1/debian/foxi/foxi/onnxifi_loader.c:212:1: internal compiler error: Segmentation fault 212 | } | ^ 0xa26915 internal_error(char const*, ...) ???:0 Please submit a full bug report, with preprocessed source if appropriate. Please include the complete backtrace with any bug report. See <file:///usr/share/doc/gcc-11/README.Bugs> for instructions. aurel32@beaglev:~/pytorch$ aurel32@beaglev:~/pytorch$ gcc-12 -v Using built-in specs. COLLECT_GCC=gcc-12 COLLECT_LTO_WRAPPER=/usr/lib/gcc/riscv64-linux-gnu/12/lto-wrapper Target: riscv64-linux-gnu Configured with: ../src/configure -v --with-pkgversion='Debian 12-20211217-1' --with-bugurl=file:///usr/share/doc/gcc-12/README.Bugs --enable-languages=c,ada,c++,go,d,fortran,objc,obj-c++,m2 --prefix=/usr --with-gcc-major-version-only --program-suffix=-12 --program-prefix=riscv64-linux-gnu- --enable-shared --enable-linker-build-id --libexecdir=/usr/lib --without-included-gettext --enable-threads=posix --libdir=/usr/lib --enable-nls --enable-clocale=gnu --enable-libstdcxx-debug --enable-libstdcxx-time=yes --with-default-libstdcxx-abi=new --enable-gnu-unique-object --disable-libitm --disable-libquadmath --disable-libquadmath-support --enable-plugin --enable-default-pie --with-system-zlib --enable-libphobos-checking=release --with-target-system-zlib=auto --enable-objc-gc=auto --enable-multiarch --disable-werror --disable-multilib --with-arch=rv64imafdc --with-abi=lp64d --enable-checking=release --build=riscv64-linux-gnu --host=riscv64-linux-gnu --target=riscv64-linux-gnu Thread model: posix Supported LTO compression algorithms: zlib zstd gcc version 12.0.0 20211217 (experimental) [master r12-6027-g774269aa4b9] (Debian 12-20211217-1) aurel32@beaglev:~/pytorch$ /usr/bin/gcc-12 -gsplit-dwarf -O2 -g -fPIC -std=c90 -c ./onnxifi_loader.c.i /home/aurel32/pytorch/pytorch-1.8.1/debian/foxi/foxi/onnxifi_loader.c:212:1: internal compiler error: Segmentation fault 212 | } | ^ 0xc730d3 internal_error(char const*, ...) ???:0 Please submit a full bug report, with preprocessed source if appropriate. Please include the complete backtrace with any bug report. See <file:///usr/share/doc/gcc-12/README.Bugs> for instructions. aurel32@beaglev:~/pytorch$
