[Bug target/113257] -march=native or -mcpu=native are ineffective, but -march=native -mcpu=native works on arm64 M2 Ultra

[tnfchris at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113257

--- Comment #8 from Tamar Christina <tnfchris at gcc dot gnu.org> ---
> ./install/bin/gcc -xc -S -o - - -march=native < /dev/null
        .arch
armv8-a+flagm2+lse+dotprod+rdma+crc+aes+sha3+fp16fml+jscvt+fcma+rcpc2+frintts+i8mm+bf16+sb+ssbs+pauth

patch works, will regtest and submit