[all-commits] [llvm/llvm-project] 1e007c: [ARM] Use rGPR for writeback vldrs

[David Green via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 1e007cf43c50d4ed4b85e30d4a0416c137075b98
      https://github.com/llvm/llvm-project/commit/1e007cf43c50d4ed4b85e30d4a0416c137075b98
  Author: David Green <david.green at arm.com>
  Date:   2021-02-16 (Tue, 16 Feb 2021)

  Changed paths:
    M llvm/lib/Target/ARM/ARMInstrMVE.td
    M llvm/test/CodeGen/Thumb2/LowOverheadLoops/count_dominates_start.mir
    M llvm/test/CodeGen/Thumb2/mve-postinc-distribute.mir

  Log Message:
  -----------
  [ARM] Use rGPR for writeback vldrs

>From what I can tell, a writeback is unpredictable with LR for both
loads and stores. This changes the operand from a gprnopc to a rGPR in
both cases (which I believe is essentially a NFC due to the tied-def
already being a rGPR.)

Differential Revision: https://reviews.llvm.org/D96723