[PATCH] D96723: [ARM] Use rGPR for writeback vldrs

[Dave Green via Phabricator via llvm-commits]

dmgreen created this revision.
dmgreen added reviewers: simon_tatham, SjoerdMeijer, efriedma, ostannard, NickGuy.
Herald added subscribers: danielkiss, hiraditya, kristof.beyls.
dmgreen requested review of this revision.
Herald added a project: LLVM.

>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 NOP due to the tied-def already being a rGPR.)


https://reviews.llvm.org/D96723

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

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