[PATCH] D130052: [BOLT] Support passing fragments to code emission

[Fabian Parzefall via Phabricator via llvm-commits]

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Clean diff up


This changes code emission such that it can emit specific function
fragments instead of scanning all basic blocks of a function and just
emitting those that are hot or cold.

To implement this, `FunctionLayout` explicitly distinguishes the "main"
fragment (i.e. the one that contains the entry block and is associated
with the original symbol) from "split" fragments. Additionally,
`BinaryFunction` receives support for multiple cold symbols - one for
each split fragment.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D130052

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

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