761c761,769
< const uint64_t bigImm = simd_modified_imm(op, cmode, imm);
---
>
> // Check for invalid immediate encodings and return an unknown op
> // if it happens
> bool immValid = true;
> const uint64_t bigImm = simd_modified_imm(op, cmode, imm, immValid);
> if (!immValid) {
> return new Unknown(machInst);
> }
>