[all-commits] [llvm/llvm-project] 9236de: [ARM] Create MQQPR and MQQQQPR register classes

[David Green via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 9236dea255a87d7f48a6b7a27ba2fa21a676304d
      https://github.com/llvm/llvm-project/commit/9236dea255a87d7f48a6b7a27ba2fa21a676304d
  Author: David Green <david.green at arm.com>
  Date:   2021-08-16 (Mon, 16 Aug 2021)

  Changed paths:
    M llvm/lib/Target/ARM/ARMBaseInstrInfo.cpp
    M llvm/lib/Target/ARM/ARMBaseRegisterInfo.cpp
    M llvm/lib/Target/ARM/ARMISelLowering.cpp
    M llvm/lib/Target/ARM/ARMInstrMVE.td
    M llvm/lib/Target/ARM/ARMRegisterInfo.td
    M llvm/lib/Target/ARM/AsmParser/ARMAsmParser.cpp
    M llvm/lib/Target/ARM/Disassembler/ARMDisassembler.cpp
    M llvm/test/CodeGen/Thumb2/mve-vld2.ll
    M llvm/test/CodeGen/Thumb2/mve-vld4.ll

  Log Message:
  -----------
  [ARM] Create MQQPR and MQQQQPR register classes

Similar to the MQPR register class as the MVE equivalent to QPR, this
adds MQQPR and MQQQQPR register classes for the MVE equivalents of QQPR
and QQQQPR registers. The MVE MQPR seemed have worked out quite well,
and adding MQQPR and MQQQQPR allows us to a little more accurately
specify the number of registers, calculating register pressure limits a
little better.

Differential Revision: https://reviews.llvm.org/D107463