Loongarch is built on MIPS, so the core predates RISC-V by decades. RISC-V didn't have the specs to build what they were targeting when they started designing

Loongarch is built on MIPS, so the core predates RISC-V by decades. RISC-V didn't have the specs to build what they were targeting when they started designing a few years ago. Given the similarities in the ISAs, I suspect they may switch to RISC-V in the near future.