Reland "[CMake] Bumps minimum version to 3.20.0."

All build bots should be updated now.

This reverts commit 44d38022ab29a3156349602733b3459df5beef93.

GitOrigin-RevId: ffb807ab5375b3f78df198dc5d4302b3b552242f
2 files changed
tree: 3d8fa505978a5a97f619af97bc5d9348bbbc7683
  1. benchmark/
  2. cmake/
  3. docs/
  4. examples/
  5. include/
  6. lib/
  7. python/
  8. test/
  9. tools/
  10. unittests/
  11. utils/
  12. .clang-format
  13. .clang-tidy
  14. CMakeLists.txt
  15. LICENSE.TXT
  16. README.md
README.md

Multi-Level Intermediate Representation

See https://mlir.llvm.org/ for more information.