On: First stage POWER9 Firefox JIT passes tests

[gnufx]

> what benefits does POWER and SPARC brings to the table

Radiation hardened implementations, e.g. spacecraft, is one niche, though I don't know whether that has anything particular to do with the ISA.

[ksec → gnufx]

Radiation hardening are mostly done with mature old node with less error rate and packaging. There are additional compute to check if results are correct ( I remember it was n+2 ? ). So nothing to do with ISA itself ( at least as far as I know ).