I asked over at the Faust Slack channel and the guy from Grame said (after looking briefly at the FV-1 instruction set) that it would require a custom backend assuming it's even possible. Which doesn't sound like a ringing endorsement. I think the missing link here is for the other ASICs like fxCore, CoolAudio V1000, etc. Faust is portable to ARM and other general purpose CPUs. They are also working on a project to implement Faust on FPGAs which gets super low latency. My question as always is "how much processing can you get on that"? It remains to be seen.