[PATCH] D24616: [ELF] Improve section GC for comdat groups

[Eugene Leviant via llvm-commits]

evgeny777 added a comment.

Let's elaborate the idea. The main problem is that symbol 'D' inside resolveReloc() may point to InputSectionBase<ELFT>::Discarded. This happens because comdat group is added to only one object file and causes crash in GC, because forEachSuccessor implicitly casts Discarded to InputSection<ELFT> and tries to fetch relocs from it. How this 'GroupMembers' vector would help?


Repository:
  rL LLVM

https://reviews.llvm.org/D24616