Richard Sandiford
36043bcff4
SME2 has many instructions that take a list of SVE registers. There are often multiple forms, with different forms taking different numbers of registers. This means that if, after a successful parse and qualifier match, we find that the number of registers does not match the opcode entry, the associated error should have a lower priority/severity than other errors reported at the same stage. For example, if there are 2-register and 4-register forms of an instruction, and if the assembly code uses the 2-register form with an out-of-range value, the out-of-range value error against the 2-register instruction should have a higher priority than the "wrong number of registers" error against the 4-register instruction. This is tested by the main SME2 patches, but seemed worth splitting out.
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