mizvekov added a comment.

In D136565#3911884 <https://reviews.llvm.org/D136565#3911884>, @alexfh wrote:

> Hi Matheus, 279fe6281d2ca5b2318c7437316c28750feaac8d 
> <https://reviews.llvm.org/rG279fe6281d2ca5b2318c7437316c28750feaac8d> causes 
> compilation timeout on some of our internal files.

Hi @alexfh. It looks like somehow we may be creating a crazy amount of extra 
UsingTypes in your test scenario.

There is a clang flag that prints some performance statistics, including the 
amount of AST nodes created. I can't lookup the spelling as I am on vacations / 
on a cellphone for the next two weeks, but I believe this is documented.

One idea to get a reduction here is to perhaps tie your creduce interestingness 
test to that UsingType count.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D136565/new/

https://reviews.llvm.org/D136565

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