https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91069
--- Comment #1 from Martin Liška <marxin at gcc dot gnu.org> --- So the problematic file is: $ g++ -c -o matrices.o -DSPEC_CPU -DNDEBUG -Ofast -march=native -g -fpermissive -DSPEC_CPU_LP64 matrices.cpp
