[PATCH] D135758: [AArch64]SME2 single-multi and multi-multi INT dot product instructions[part1]

[Caroline via Phabricator via llvm-commits]

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This patch adds the assembly/disassembly for the following instructions:

  SDOT:  (2-way, multiple and single vector): Multi-vector signed integer dot-product by vector.
         (2-way, multiple vectors): Multi-vector signed integer dot-product.
  USDOT: (multiple and single vector): Multi-vector unsigned by signed integer dot-product by vector.
         (multiple vectors): Multi-vector unsigned by signed integer dot-product.

for groups of 2 and 4 ZA registers

The reference can be found here:

  https://developer.arm.com/documentation/ddi0602/2022-09

It also adds more size for the register tuple:

  ZZ_b_r,  ZZZZ_b_r

Depends on:D135455 <https://reviews.llvm.org/D135455>


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D135758

Files:
  llvm/lib/Target/AArch64/AArch64RegisterInfo.td
  llvm/lib/Target/AArch64/AArch64SMEInstrInfo.td
  llvm/lib/Target/AArch64/SMEInstrFormats.td
  llvm/test/MC/AArch64/SME2/sdot.s
  llvm/test/MC/AArch64/SME2/sudot.s
  llvm/test/MC/AArch64/SME2/udot.s
  llvm/test/MC/AArch64/SME2/usdot.s

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