[PATCH] D152785: [COFF] Support -gsplit-dwarf for COFF on Windows

[Fangrui Song via Phabricator via cfe-commits]

MaskRay added a comment.

Tests seem mostly fine, but since this is the primary patch for a major feature, consider adding more descriptions how this works?

For example, you can add something like the following to the summary/commit message, which should make a curious reader know how to play with this new feature.

  % cat a.c
  int main() {}
  % clang --target=x86_64-windows-gnu -g -gsplit-dwarf -c a.c
  % llvm-objdump -h a.dwo
  ...

CodeView is the primary debug info format. I expect some description about it as well, even if we decide to let `-gsplit-dwarf` be silently ignored in CodeView and no-DWARF mode.


Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D152785/new/

https://reviews.llvm.org/D152785