[PATCH] D127936: [BOLT] Split functions with exceptions in shared objects and PIEs

[Maksim Panchenko via Phabricator via llvm-commits]

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Add functionality to allow splitting code with C++ exceptions in shared
libraries and PIEs. To overcome a limitation in exception ranges format,
for functions with fragments spanning multiple sections, add trampoline
landing pads in the same section as the corresponding throwing range.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D127936

Files:
  bolt/include/bolt/Core/MCPlusBuilder.h
  bolt/include/bolt/Passes/SplitFunctions.h
  bolt/lib/Core/BinaryEmitter.cpp
  bolt/lib/Core/MCPlusBuilder.cpp
  bolt/lib/Passes/SplitFunctions.cpp
  bolt/lib/Rewrite/RewriteInstance.cpp
  bolt/test/runtime/X86/Inputs/exceptions_split.cpp
  bolt/test/runtime/X86/pie-exceptions-split.test

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