[all-commits] [llvm/llvm-project] fc734d: [JITLink][MachO][arm64] Add support for splitting ...

[lhames via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: fc734da79549fd74cff71b8c4c8e689de4a0340f
      https://github.com/llvm/llvm-project/commit/fc734da79549fd74cff71b8c4c8e689de4a0340f
  Author: Lang Hames <lhames at gmail.com>
  Date:   2021-09-28 (Tue, 28 Sep 2021)

  Changed paths:
    M llvm/lib/ExecutionEngine/JITLink/MachOLinkGraphBuilder.cpp
    M llvm/lib/ExecutionEngine/JITLink/MachOLinkGraphBuilder.h
    M llvm/lib/ExecutionEngine/JITLink/MachO_arm64.cpp
    A llvm/test/ExecutionEngine/JITLink/AArch64/MachO_arm64_compact_unwind.s

  Log Message:
  -----------
  [JITLink][MachO][arm64] Add support for splitting compact-unwind sections.

CompactUnwindSplitter splits compact-unwind sections on record boundaries and
adds keep-alive edges from target functions back to their respective records.

In MachO_arm64.cpp, a CompactUnwindSplitter pass is added to the pre-prune pass
list when setting up the standard pipeline.

This patch does not provide runtime support for compact-unwind, but is a first
step towards enabling it.