[all-commits] [llvm/llvm-project] cd5833: [LoopInterchange] Refactor and rewrite validDepInt...

[MengXuan Cai via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: cd58333a62142d47c8571eacc07685251c5a0825
      https://github.com/llvm/llvm-project/commit/cd58333a62142d47c8571eacc07685251c5a0825
  Author: Mengxuan Cai <mengxuan.cai at huawei.com>
  Date:   2022-11-17 (Thu, 17 Nov 2022)

  Changed paths:
    M llvm/lib/Transforms/Scalar/LoopInterchange.cpp

  Log Message:
  -----------
  [LoopInterchange] Refactor and rewrite validDepInterchange()

The current code of validDepInterchange() enumerates cases that are
legal for interchange. This could be simplified by checking
lexicographically order of the swapped direction matrix.

Reviewed By: congzhe, Meinersbur, bmahjour

Differential Revision: https://reviews.llvm.org/D137461