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The merge brought in the SQINCP/UQINCP/INCP/DECP family reading its predicate from bits 20:16, where the architecture has it at 8:5, so every one of them encoded a different register than it named. Their predicate also carries an element size -- from the form's Z operand where it has one, and from bits 23:22 for the scalar destinations. SVE writes an element count as a pattern by name and a multiplier as `mul #N`: `cntb x0, pow2, mul #1`. The pattern printed as a bare number and the multiplier did not print at all -- IMM_MUL4 had an encoder but no decoder, so it came back as an empty operand and left a trailing comma. That covers 64 and 62 forms respectively. CNTP's source predicate, and eight more the merge added, wanted the same element sizes as the rest of that family. SVE/SME2 against llvm-mc: 663 byte-exact and 0 mismatched, from 450 and 18 when the merge landed. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_018UmHLRF11EoWwNWCJ7JGaA