[llvm] [ARM] Stop gluing FP comparisons to FMSTAT (PR #116676)

[Sergei Barannikov via llvm-commits]

s-barannikov wrote:

The machine verifier error above is wrong, the immediate *is* valid. `verifyInstruction` calls `isLegalAddressImm` with *encoded* immediate, while the function seems to expect decoded (scaled by 4) value.

The instruction have `t2addrmode_imm7s4` operands. Do I understand correctly that these instructions do not exist in ARM mode?
CC @ostannard 


https://github.com/llvm/llvm-project/pull/116676