[all-commits] [llvm/llvm-project] c0f73c: [mlir] Use a container with deterministic iteratio...

Colin He via All-commits all-commits at lists.llvm.org
Wed Apr 15 11:35:06 PDT 2026


  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: c0f73c807ddad11f5262f570fee25479226b3fd3
      https://github.com/llvm/llvm-project/commit/c0f73c807ddad11f5262f570fee25479226b3fd3
  Author: Colin He <50345320+CPlusMinus2000 at users.noreply.github.com>
  Date:   2026-04-15 (Wed, 15 Apr 2026)

  Changed paths:
    M mlir/lib/Transforms/Utils/DialectConversion.cpp
    M mlir/test/Transforms/test-legalize-type-conversion.mlir

  Log Message:
  -----------
  [mlir] Use a container with deterministic iteration order for unrealized materializations (#191323)

Iteration over unrealized materializations in DialectConversion is
non-deterministic as the materialization metadata is stored in a
DenseMap. Replacing with a Vector-backed `llvm::MapVector` restores
deterministic behaviour.

This container is iterated for example here:
https://github.com/llvm/llvm-project/blob/main/mlir/lib/Transforms/Utils/DialectConversion.cpp#L3250



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