[PATCH] D130051: [BOLT] Add main fragment to function layout

[Fabian Parzefall via Phabricator via llvm-commits]

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Functions that do not contain any code still have to be emitted. This
occurs on AArch64 where functions can consist only of a constant island.
To support fragment semantics in code emission, this commits adds a
guaranteed main fragment to function layout. This fragment might be
empty, but allows us omit checks whether the function is empty in most
places.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D130051

Files:
  bolt/include/bolt/Core/FunctionLayout.h
  bolt/lib/Core/BinaryEmitter.cpp
  bolt/lib/Core/BinaryFunction.cpp
  bolt/lib/Core/FunctionLayout.cpp

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