nikic added a comment.

It looks like this has caused a compile-time regression at `O0`: 
https://llvm-compile-time-tracker.com/compare.php?from=9341bcbdc93a251b632ffaa51a84452a7a4a5e4e&to=4f198b0c27b04e830a3069aaf4b39cf203eaae4a&stat=instructions

The cause is probably the computation of DomTree and LoopInfo, even if no AMX 
intrinsics are present. I think you should be able to easily fix this by not 
fetching DT/LI from the pass manager, and computing them in the pass instead 
(only if intrinsics are present).


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D93594/new/

https://reviews.llvm.org/D93594

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