[PATCH] D52049: [ThinLTOCodeGenerator] Avoid Rehash StringMap in ThreadPool

[Steven Wu via Phabricator via llvm-commits]

steven_wu added a comment.

Also a bit clarification why ModuleToDefinedGVSummaries can have missing entries, because there can be an empty module, or a module has no GV in it. And this happens during thinLTO WebKit.
For example, in WebCore MacOS build, UnifiedSource26-mm.o has empty __text and __data section. Its object file only has debug info.


Repository:
  rL LLVM

https://reviews.llvm.org/D52049