I'm not familiar with what YJIT generates, however, in general terms, if the ASM code for a given bytecode is small enough (Which I think it is), one can just c

I'm not familiar with what YJIT generates, however, in general terms, if the ASM code for a given bytecode is small enough (Which I think it is), one can just compare them side by side, or just log them and compare them separately. I think a JIT for Ruby should compile relatively small chunks of ASM, not big walls of code (but again, this is my guess).