Lots of x86 assembly out there from that time period. Beating the compiler in the eighties and nineties was a bit of a hobby and lots of people could do it.
Modern ISA designers (including those evolving the x86_64 ISA) absolutely take into account just how easy it is for a compiler to target their new instructions. x86 in modern times has a lot of RISC influence once you get past instruction decode.
Modern ISA designers (including those evolving the x86_64 ISA) absolutely take into account just how easy it is for a compiler to target their new instructions. x86 in modern times has a lot of RISC influence once you get past instruction decode.