[all-commits] [llvm/llvm-project] 375f19: [MLIR][Presburger] Fix full dimension check (#175422)

[Yue Huang via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 375f1995224ce8bd52e97c7898a22564bee15056
      https://github.com/llvm/llvm-project/commit/375f1995224ce8bd52e97c7898a22564bee15056
  Author: Yue Huang <30948580+AdUhTkJm at users.noreply.github.com>
  Date:   2026-02-13 (Fri, 13 Feb 2026)

  Changed paths:
    M mlir/lib/Analysis/Presburger/IntegerRelation.cpp
    M mlir/unittests/Analysis/Presburger/IntegerRelationTest.cpp

  Log Message:
  -----------
  [MLIR][Presburger] Fix full dimension check (#175422)

Currently, the code mistakenly thinks `(x): (1 >= 0)` as
non-full-dimensional.

The code determines full-dimensionality by testing whether an inequality
is flat, i.e. takes the same value regardless of variable assignments.
However, `1 >= 0` is obviously flat, and this case should be ignored
since it didn't involve any variables.

To remove these inequalities, we can call `removeTrivialRedundancy`.



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