What should be the default gcc settings for `-march` on x86_64? 

My understanding is that RHEL-10 will require x86_64 servers which support at least x86-64-v3  microarchitecture

https://en.wikipedia.org/wiki/X86-64#Microarchitecture_levels

and according to that, the default gcc settings for `-march` will be x86-64-v3

I have now tested the GCC settings on RHEL-10.0-20240505.46 with

gcc --version
gcc (GCC) 14.0.1 20240411 (Red Hat 14.0.1-0)

and I was surprised that the default is still 

 gcc -Q --help=target | grep march 
 -march=                               x86-64-v2

Is this by purpose, or do we plan to change the default to `-march=x86-64-v3`?

Thanks a lot

Jirka