RISC-V: Add vector support#435
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The performance estimate after the split heuristic runs another binary
search (`optimize_binsearch`), which raises `SlothyException` on failure
rather than returning `success=False`. That exception propagated up and
discarded the already-optimized code. It also inherited the optimization
timeout, so a too-short timeout would abort it.
Catch the exception (warn and keep the optimized code without a stall
estimate) and disable the timeout for the estimate, since it only inserts
stalls into the already-fixed ordering.
…rce LMUL=1), unfold ntt_kyber example and add multiple optimization regions (vsetvli/ lmul problem), linting
…er_ntt2normal_order_rvv_vlen128
…ts. Add lmul value to more examples.
…fter optimization. wip: make vsetvl* write to CSR regs and vector instructions read from it to prevent wrong scheduling
…ed, adjusted opt params
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Adds support for the RISC-V "V"-Extension v1.0-rc1.