[all-commits] [llvm/llvm-project] bf3b3d: [mlir][GPU] Don't look into neighboring functions ...

[Krzysztof Drewniak via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: bf3b3d012c6b6b4369ac76e467f7fc78ee5aaca8
      https://github.com/llvm/llvm-project/commit/bf3b3d012c6b6b4369ac76e467f7fc78ee5aaca8
  Author: Krzysztof Drewniak <Krzysztof.Drewniak at amd.com>
  Date:   2025-04-15 (Tue, 15 Apr 2025)

  Changed paths:
    M mlir/lib/Dialect/GPU/Transforms/EliminateBarriers.cpp

  Log Message:
  -----------
  [mlir][GPU] Don't look into neighboring functions for barrier elimination (#135293)

If a `func.func` is nested in some other operation, the barrier
eliminator's recursion into parents will examine the neighbors of each
function. Therefore, don't recurse into the parent of an operation if
that operation is IsolatedFromAbove, like a func.func is.

Furthermore, define functions as a region that executes only once,
since, within the context of this pass (which runs on functions) it is
true.



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