MIPS > SGI > Key Research > Pathscale > Qlogic > SiCortex
Remember, before Key Research changed its name to Pathscale and started focusing on Opteron, they were working on a dense computing platform based on low power MIPS cores, similar to SiCortex. Pathscale's compiler guru is a former MIPS/SGI compiler guru, so it makes sense that there was/is probably a lot of valuable MIPS compiler IP there for SiCortex to acquire.
Hippster