g++ -O3 -fno-stack-protector -fno-math-errno -funroll-loops -fno-exceptions -flto -flto-partition=one -s -pthread -std=c++17 -DNDEBUG -m64 -mpopcnt -msse -msse2 -mssse3 -msse4.1 -mbmi -mfma -mavx2 Obsidian/*.cpp Obsidian/fathom/src/tbprobe.c -o Obsidian-E308465D -fprofile-generate="obs_pgo" ./Obsidian-E308465D bench make: *** [Makefile:56: make] Illegal instruction (core dumped)