[all-commits] [llvm/llvm-project] 310adb: [InstCombine] reorder mask folds for efficiency

[Sanjay Patel via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 310adb658c8c23b988dbdfb77e269133ba51ea2f
      https://github.com/llvm/llvm-project/commit/310adb658c8c23b988dbdfb77e269133ba51ea2f
  Author: Sanjay Patel <spatel at rotateright.com>
  Date:   2022-06-13 (Mon, 13 Jun 2022)

  Changed paths:
    M llvm/lib/Transforms/InstCombine/InstCombineAndOrXor.cpp
    M llvm/test/Transforms/InstCombine/and.ll

  Log Message:
  -----------
  [InstCombine] reorder mask folds for efficiency

This shows narrowing improvements on the logic tests
(transforms recently added with e247b0e5c921).

This is not a complete fix. That would require adding
folds to visitOr/visitXor. But it enables the expected
transforms for the basic patterns in the affected tests.