[PATCH] D23599: [ThinLTO] Add caching to the new LTO API

[Mehdi AMINI via llvm-commits]

mehdi_amini created this revision.
mehdi_amini added a reviewer: tejohnson.
mehdi_amini added subscribers: llvm-commits, pcc.
Herald added a subscriber: mehdi_amini.

Add the ability to plug a cache on the LTO API.
I tried to write such that a linker implementation can
control the cache backend. I tried multiple design before
settling on this one, even if I'm not totally happy about
it. Suggestions welcome if any.

https://reviews.llvm.org/D23599

Files:
  include/llvm/LTO/Caching.h
  include/llvm/LTO/Config.h
  lib/LTO/CMakeLists.txt
  lib/LTO/Caching.cpp
  lib/LTO/LTO.cpp
  test/ThinLTO/X86/cache.ll
  tools/llvm-lto2/llvm-lto2.cpp

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