There are RISC-V based zero-knowledge virtual machines, to which a GCC version can be compiled. So this should be possible, although probably very slow, maybe a thousand times slower than a normal GCC execution.
That was 500 KHz, and the latest versions are at 1MHz, so still 1000 times slower than a 1Ghz machine, but it’s easy to parallelize the workload, so it’s really mostly a cost of computation issue.
