[PATCH] D109632: [clang] de-duplicate methods from AST files

[Volodymyr Sapsai via Phabricator via cfe-commits]

vsapsai added a comment.

In D109632#3000709 <https://reviews.llvm.org/D109632#3000709>, @rmaz wrote:

> The speedup is coming from reducing the number of times `Sema::addMethodToGlobalList` is called when looking up methods loaded from modules. From what I can see each serialized module will contain an ObjCMethodList with all the methods from all visible modules at the point of serialization.

Thanks for the explanation! I'm still curious to reproduce the problem locally and have created a test case generator https://gist.github.com/vsapsai/f9d3603dde95eebd23248da4d7b4f5ec It creates a chain of .m -> Synthesized9 -> Synthesized8 -> Synthesized7 ->... Does it represent the structure of the code you are dealing with?


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