[PATCH] D42450: [utils] Convert update_{llc_, }test_checks.py to Python 3

[Fangrui Song via Phabricator via llvm-commits]

MaskRay created this revision.
Herald added a subscriber: llvm-commits.

Python 2.7 will retire in 2 years. We may extract common parts of the two files to deduplicate. By converting to Python 3, we'll have less trouble dealing with different `import` mechanism.


Repository:
  rL LLVM

https://reviews.llvm.org/D42450

Files:
  utils/update_llc_test_checks.py
  utils/update_test_checks.py

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