[PATCH] D78762: build: use `find_package(Python3)` if available

[Saleem Abdulrasool via Phabricator via llvm-commits]

compnerd updated this revision to Diff 259895.
compnerd added a comment.

Add fallback to python2 in case python3 is not found.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D78762/new/

https://reviews.llvm.org/D78762

Files:
  llvm/CMakeLists.txt
  llvm/cmake/config-ix.cmake
  llvm/cmake/modules/AddLLVM.cmake
  llvm/test/lit.site.cfg.py.in

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