[PATCH] D79818: [lld] Support size levels with (Thin)LTO

[Petr Hosek via Phabricator via llvm-commits]

phosek created this revision.
phosek added a reviewer: ruiu.
Herald added subscribers: llvm-commits, dang, dexonsmith, steven_wu, MaskRay, hiraditya, arichardson, inglorion, emaste.
Herald added a reviewer: espindola.
Herald added a reviewer: MaskRay.
Herald added a project: LLVM.
phosek added a reviewer: tejohnson.

Currently the size levels aren't supported at all and attempt to use
these with (Thin)LTO results in failure because lld doesn't support
anything other than optimization levels. This change extends the option
handling to properly handle the size level and pass it to the LTO
backend.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D79818

Files:
  lld/ELF/Config.h
  lld/ELF/Driver.cpp
  lld/ELF/LTO.cpp
  lld/test/ELF/lto/opt-level.ll
  llvm/include/llvm/LTO/Config.h
  llvm/lib/LTO/LTOBackend.cpp

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