[PATCH] D157279: [CodeGen] Disable LD1RX instructions generation for Neoverse-V1

[Igor Kirillov via Phabricator via llvm-commits]

igor.kirillov created this revision.
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These instructions show worse performance on Neoverse-V1 compared
to pair of LDR(LDP)/MOV instructions.
This patch adds `avoid-ld1r` sub-target feature, which is enabled
only on Neoverse-V1.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D157279

Files:
  llvm/lib/Target/AArch64/AArch64.td
  llvm/lib/Target/AArch64/AArch64InstrInfo.td
  llvm/lib/Target/AArch64/AArch64SVEInstrInfo.td
  llvm/lib/Target/AArch64/SVEInstrFormats.td
  llvm/test/CodeGen/AArch64/sve-ld1r.ll

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