[Raion]

There's a method to cross compile from a modern OS to IRIX, but no emulation/virtualization at this time that can be used to "test" code. Qemu-irix exists, but it was only ever used to run the compiler IDO 5.3 not run any code

I find that cross compilation is basically useless unless you really don't want to put wear and tear on your system and are okay with the limitations (GCC only, many coding limitations)

I find many of the limits annoying/useless for me, and I have access to enough systems that I can do it whenever I want on a fast system that is only 30-40 mins slower than a modern Linux box at compiling GCC