The RISC-V one has just never been touched since it was created in 2018. > newer gcc versions have significantly better optimization passes So what you're say

The RISC-V one has just never been touched since it was created in 2018. > newer gcc versions have significantly better optimization passes So what you're saying is that with a modern compiler RISC-V would win by even more? TBH I doubt much has changed with register allocation on register-rich RISC ISAs since 2018. On i386, yeah, quite possible.