[PATCH] D152081: [Attributor] Add lightweight version for attribute deduction only. (WIP)

[Johannes Doerfert via Phabricator via llvm-commits]

jdoerfert added a comment.

The sqlite slowdown seems to be a secondary effect:
With the attributor pass:

  0.0815 (  0.8%)   0.0058 (  1.9%)   0.0873 (  0.9%)   0.0875 (  0.9%)  LightweightAttributorCGSCCPass

with the function attributes pass:

  0.0793 (  0.8%)   0.0044 (  1.5%)   0.0837 (  0.9%)   0.0839 (  0.9%)  PostOrderFunctionAttrsPass

Here is the -stats output for both runs: https://gist.github.com/jdoerfert/b29c4ac1f853e689fe5933e820766c84
Here is the pass time for both runs: https://gist.github.com/jdoerfert/d38cd4d9cbd885522752d4c39f79c322

Not super sure where the +3% come from, looks like many smaller things.


Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D152081/new/

https://reviews.llvm.org/D152081