[PATCH] D36351: [lld][ELF] Add profile guided section layout

[Michael Spencer via Phabricator via llvm-commits]

Bigcheese created this revision.
Bigcheese added a project: lld.
Herald added a subscriber: emaste.

This adds profile guided layout using the Call-Chain Clustering (C³) heuristic from https://research.fb.com/wp-content/uploads/2017/01/cgo2017-hfsort-final1.pdf .

It currently reads the call graph profile from a text file.

RFC: [llvm-dev] [RFC] Profile guided section layout http://lists.llvm.org/pipermail/llvm-dev/2017-June/114178.html


Repository:
  rL LLVM

https://reviews.llvm.org/D36351

Files:
  ELF/Config.h
  ELF/Driver.cpp
  ELF/Options.td
  ELF/Writer.cpp
  test/ELF/Inputs/cgprofile.txt
  test/ELF/cgprofile.s

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