[PATCH] D130365: [AArch64][SVE] Allow XZR as offset reg in contiguous loads/stores

[Cullen Rhodes via Phabricator via llvm-commits]

c-rhodes created this revision.
c-rhodes added reviewers: paulwalker-arm, sdesmalen.
Herald added subscribers: ctetreau, psnobl, hiraditya, kristof.beyls, tschuett.
Herald added a reviewer: efriedma.
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c-rhodes requested review of this revision.
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The spec [1] doesn't restrict the offset register (i.e. Rm != 11111) in
SVE contiguous load/store (scalar plus scalar) instructions, permit XZR.

[1] https://developer.arm.com/documentation/ddi0596/2020-12/SVE-Instructions


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D130365

Files:
  llvm/lib/Target/AArch64/AArch64SVEInstrInfo.td
  llvm/test/MC/AArch64/SVE/ld1b-diagnostics.s
  llvm/test/MC/AArch64/SVE/ld1b.s
  llvm/test/MC/AArch64/SVE/ld1d-diagnostics.s
  llvm/test/MC/AArch64/SVE/ld1d.s
  llvm/test/MC/AArch64/SVE/ld1h-diagnostics.s
  llvm/test/MC/AArch64/SVE/ld1h.s
  llvm/test/MC/AArch64/SVE/ld1sb-diagnostics.s
  llvm/test/MC/AArch64/SVE/ld1sb.s
  llvm/test/MC/AArch64/SVE/ld1sh-diagnostics.s
  llvm/test/MC/AArch64/SVE/ld1sh.s
  llvm/test/MC/AArch64/SVE/ld1sw-diagnostics.s
  llvm/test/MC/AArch64/SVE/ld1sw.s
  llvm/test/MC/AArch64/SVE/ld1w-diagnostics.s
  llvm/test/MC/AArch64/SVE/ld1w.s
  llvm/test/MC/AArch64/SVE/st1b-diagnostics.s
  llvm/test/MC/AArch64/SVE/st1b.s
  llvm/test/MC/AArch64/SVE/st1d-diagnostics.s
  llvm/test/MC/AArch64/SVE/st1d.s
  llvm/test/MC/AArch64/SVE/st1h-diagnostics.s
  llvm/test/MC/AArch64/SVE/st1h.s
  llvm/test/MC/AArch64/SVE/st1w-diagnostics.s
  llvm/test/MC/AArch64/SVE/st1w.s

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