https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90341
--- Comment #4 from Kyle De'Vir <kyle.devir at mykolab dot com> --- Here's what `-march=native` expands to: COLLECT_GCC_OPTIONS='-march=native' /usr/lib/gcc/x86_64-pc-linux-gnu/9.1.1/cc1 -quiet - "-march=znver1" -mmmx -mno-3dnow -msse -msse2 -msse3 -mssse3 -msse4a -mcx16 -msahf -mmovbe -maes -msha -mpclmul -mpopcnt -mabm -mno-lwp -mfma -mno-fma4 -mno-xop -mbmi -mno-sgx -mbmi2 -mno-pconfig -mno-wbnoinvd -mno-tbm -mavx -mavx2 -msse4.2 -msse4.1 -mlzcnt -mno-rtm -mno-hle -mrdrnd -mf16c -mfsgsbase -mrdseed -mprfchw -madx -mfxsr -mxsave -mxsaveopt -mno-avx512f -mno-avx512er -mno-avx512cd -mno-avx512pf -mno-prefetchwt1 -mclflushopt -mxsavec -mxsaves -mno-avx512dq -mno-avx512bw -mno-avx512vl -mno-avx512ifma -mno-avx512vbmi -mno-avx5124fmaps -mno-avx5124vnniw -mno-clwb -mmwaitx -mclzero -mno-pku -mno-rdpid -mno-gfni -mno-shstk -mno-avx512vbmi2 -mno-avx512vnni -mno-vaes -mno-vpclmulqdq -mno-avx512bitalg -mno-movdiri -mno-movdir64b -mno-waitpkg -mno-cldemote -mno-ptwrite --param "l1-cache-size=32" --param "l1-cache-line-size=64" --param "l2-cache-size=512" "-mtune=znver1" -quiet -dumpbase - -auxbase - -o /tmp/ccfG19H9.s COLLECT_GCC_OPTIONS='-march=native' as --64 -o /tmp/ccFUIPM3.o /tmp/ccfG19H9.s COMPILER_PATH=/usr/lib/gcc/x86_64-pc-linux-gnu/9.1.1/:/usr/lib/gcc/x86_64-pc-linux-gnu/9.1.1/:/usr/lib/gcc/x86_64-pc-linux-gnu/:/usr/lib/gcc/x86_64-pc-linux-gnu/9.1.1/:/usr/lib/gcc/x86_64-pc-linux-gnu/ LIBRARY_PATH=/usr/lib/gcc/x86_64-pc-linux-gnu/9.1.1/:/usr/lib/gcc/x86_64-pc-linux-gnu/9.1.1/../../../../lib/:/lib/../lib/:/usr/lib/../lib/:/usr/lib/gcc/x86_64-pc-linux-gnu/9.1.1/../../../:/lib/:/usr/lib/ COLLECT_GCC_OPTIONS='-march=native' /usr/lib/gcc/x86_64-pc-linux-gnu/9.1.1/collect2 -plugin /usr/lib/gcc/x86_64-pc-linux-gnu/9.1.1/liblto_plugin.so "-plugin-opt=/usr/lib/gcc/x86_64-pc-linux-gnu/9.1.1/lto-wrapper" "-plugin-opt=-fresolution=/tmp/ccToAwRX.res" "-plugin-opt=-pass-through=-lgcc" "-plugin-opt=-pass-through=-lgcc_s" "-plugin-opt=-pass-through=-lc" "-plugin-opt=-pass-through=-lgcc" "-plugin-opt=-pass-through=-lgcc_s" --build-id --eh-frame-hdr "--hash-style=gnu" -m elf_x86_64 -dynamic-linker /lib64/ld-linux-x86-64.so.2 -pie /usr/lib/gcc/x86_64-pc-linux-gnu/9.1.1/../../../../lib/Scrt1.o /usr/lib/gcc/x86_64-pc-linux-gnu/9.1.1/../../../../lib/crti.o /usr/lib/gcc/x86_64-pc-linux-gnu/9.1.1/crtbeginS.o -L/usr/lib/gcc/x86_64-pc-linux-gnu/9.1.1 -L/usr/lib/gcc/x86_64-pc-linux-gnu/9.1.1/../../../../lib -L/lib/../lib -L/usr/lib/../lib -L/usr/lib/gcc/x86_64-pc-linux-gnu/9.1.1/../../.. /tmp/ccFUIPM3.o -lgcc --push-state --as-needed -lgcc_s --pop-state -lc -lgcc --push-state --as-needed -lgcc_s --pop-state /usr/lib/gcc/x86_64-pc-linux-gnu/9.1.1/crtendS.o /usr/lib/gcc/x86_64-pc-linux-gnu/9.1.1/../../../../lib/crtn.o COLLECT_GCC_OPTIONS='-march=native'
