[PATCH] D101152: AArch64: support atomics up to 64-bits in GISel

[Tim Northover via Phabricator via llvm-commits]

t.p.northover created this revision.
t.p.northover added reviewers: aemerson, paquette.
Herald added subscribers: danielkiss, jfb, hiraditya, kristof.beyls, mcrosier.
t.p.northover requested review of this revision.
Herald added a project: LLVM.

Most of them were working already, but the -O0 `cmpxchg` needed a few more patterns to map to `CMP_SWAP_N` pseudos because that's handled elsewhere in SDAG. Also some old code from when there was less generic atomic support in GISel was preventing the existing patterns from handling atomic stores.


https://reviews.llvm.org/D101152

Files:
  llvm/lib/Target/AArch64/AArch64InstrGISel.td
  llvm/lib/Target/AArch64/AArch64InstrInfo.td
  llvm/lib/Target/AArch64/GISel/AArch64InstructionSelector.cpp
  llvm/lib/Target/AArch64/GISel/AArch64LegalizerInfo.cpp
  llvm/test/CodeGen/AArch64/GlobalISel/arm64-atomic.ll

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