https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88818
--- Comment #2 from John Agapeyev <jagapeyev at gmail dot com> --- Ignore first comment, output was from older test file. GCC -v output: Using built-in specs. COLLECT_GCC=g++ Target: x86_64-pc-linux-gnu Configured with: /build/gcc/src/gcc/configure --prefix=/usr --libdir=/usr/lib --libexecdir=/usr/lib --mandir=/usr/share/man --infodir=/usr/share/info --with-bugurl=https://bugs.archlinux.org/ --enable-languages=c,c++,ada,fortran,go,lto,objc,obj-c++ --enable-shared --enable-threads=posix --enable-libmpx --with-system-zlib --with-isl --enable-__cxa_atexit --disable-libunwind-exceptions --enable-clocale=gnu --disable-libstdcxx-pch --disable-libssp --enable-gnu-unique-object --enable-linker-build-id --enable-lto --enable-plugin --enable-install-libiberty --with-linker-hash-style=gnu --enable-gnu-indirect-function --enable-multilib --disable-werror --enable-checking=release --enable-default-pie --enable-default-ssp --enable-cet=auto Thread model: posix gcc version 8.2.1 20181127 (GCC) COLLECT_GCC_OPTIONS='-v' '-c' '-O1' '-flto' '-fvtable-verify=preinit' '-shared-libgcc' '-mtune=generic' '-march=x86-64' /usr/lib/gcc/x86_64-pc-linux-gnu/8.2.1/cc1plus -quiet -v -D_GNU_SOURCE test.cpp -quiet -dumpbase test.cpp -mtune=generic -march=x86-64 -auxbase test -O1 -version -flto -fvtable-verify=preinit -o /tmp/ccGxPiUI.s GNU C++14 (GCC) version 8.2.1 20181127 (x86_64-pc-linux-gnu) compiled by GNU C version 8.2.1 20181127, GMP version 6.1.2, MPFR version 4.0.1, MPC version 1.1.0, isl version isl-0.20-GMP GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072 ignoring nonexistent directory "/usr/lib/gcc/x86_64-pc-linux-gnu/8.2.1/../../../../x86_64-pc-linux-gnu/include" #include "..." search starts here: #include <...> search starts here: /usr/lib/gcc/x86_64-pc-linux-gnu/8.2.1/../../../../include/c++/8.2.1 /usr/lib/gcc/x86_64-pc-linux-gnu/8.2.1/../../../../include/c++/8.2.1/x86_64-pc-linux-gnu /usr/lib/gcc/x86_64-pc-linux-gnu/8.2.1/../../../../include/c++/8.2.1/backward /usr/lib/gcc/x86_64-pc-linux-gnu/8.2.1/include /usr/local/include /usr/lib/gcc/x86_64-pc-linux-gnu/8.2.1/include-fixed /usr/include End of search list. GNU C++14 (GCC) version 8.2.1 20181127 (x86_64-pc-linux-gnu) compiled by GNU C version 8.2.1 20181127, GMP version 6.1.2, MPFR version 4.0.1, MPC version 1.1.0, isl version isl-0.20-GMP GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072 Compiler executable checksum: c228073cd86637479fc341ff509ca7e7 during GIMPLE pass: ealias test.cpp: In function ‘_GLOBAL__sub_I.00099__Z1cv’: test.cpp:4:11: internal compiler error: Segmentation fault void c() {} ^ Please submit a full bug report, with preprocessed source if appropriate. See <https://bugs.archlinux.org/> for instructions.