[PATCH] D77231: [lld] Support -emit-asm with LTO

[Hongtao Yu via Phabricator via llvm-commits]

hoyFB created this revision.
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The switch --plugin-opt=emit-asm can be used with the gold linker to dump the final assembly code generated by LTO in a user-friendly way. Unfortunately it doesn't work with lld. I'm hooking it up with lld. With that switch, lld emits assembly code into the output file (specified by -o) and if there are multiple input files, each of their assembly code will be emitted into a separate file named by suffixing the output file name with a unique number, respectively. The linking then stops after generating those assembly files.

Test Plan:


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D77231

Files:
  lld/ELF/Config.h
  lld/ELF/Driver.cpp
  lld/ELF/LTO.cpp
  lld/ELF/Options.td
  lld/test/ELF/lto/emit-asm.ll

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