[garaetjjte]

>What sort of architectures (if any) got killed as a direct result of developing IA-64?

Alpha?

[hulitu]

And HP-PA and, later, MIPS (as a mainstream computer). MIPS survives in some routers.

[__d]

MIPS is very, very close to dead now.

To be fair though, I think its death is more attributable to ARM than Itanium. And RISC-V is killing off anything that remained.

[WorldMaker]

MIPS the brand was bought for cheap from a bankruptcy, and resurrected by its new owner… to be an ARM partner building ARM chips.