[PATCH] D131576: [AArch64][SME] Implement ABI for calls to/from streaming functions.

[Sander de Smalen via Phabricator via llvm-commits]

sdesmalen created this revision.
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This patch implements the ABI for calls from:

  Normal -> Streaming
  Normal -> Streaming-compatible
  Streaming -> Normal
  Streaming -> Streaming-compatible
  Streaming -> Streaming

The compiler inserts SMSTART/SMSTOP instructions before and after the call,
depending on the required transition.

More details about the SME attributes and design can be found
in D131562 <https://reviews.llvm.org/D131562>.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D131576

Files:
  llvm/lib/Target/AArch64/AArch64CallingConvention.td
  llvm/lib/Target/AArch64/AArch64ISelLowering.cpp
  llvm/lib/Target/AArch64/AArch64ISelLowering.h
  llvm/lib/Target/AArch64/AArch64InstrInfo.cpp
  llvm/lib/Target/AArch64/AArch64RegisterInfo.cpp
  llvm/lib/Target/AArch64/AArch64RegisterInfo.h
  llvm/lib/Target/AArch64/AArch64RegisterInfo.td
  llvm/lib/Target/AArch64/AArch64SMEInstrInfo.td
  llvm/test/CodeGen/AArch64/sme-streaming-interface.ll

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