[PATCH] D101179: [libunwind] NFC: Use macros to accommodate differences in representation of PowerPC assemblers

[Xing Xue via Phabricator via llvm-commits]

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This `NFC` patch replaces the representation of things such as registers with macros in the `PowerPC` assembly code to allow the flexibility to be consumed by a different assembler, e.g. the `AIX` assembler.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D101179

Files:
  libunwind/src/UnwindRegistersRestore.S
  libunwind/src/UnwindRegistersSave.S
  libunwind/src/assembly.h

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