[all-commits] [llvm/llvm-project] 7756de: [MLIR][Mem2Reg] Replace pattern based approach wit...

[Christian Ulmann via All-commits]

  Branch: refs/heads/users/dinistro/turn-mem2reg-back-to-pass
  Home:   https://github.com/llvm/llvm-project
  Commit: 7756de5547a9971c9dfcefa83acd80ab8812281f
      https://github.com/llvm/llvm-project/commit/7756de5547a9971c9dfcefa83acd80ab8812281f
  Author: Christian Ulmann <christian.ulmann at nextsilicon.com>
  Date:   2024-03-15 (Fri, 15 Mar 2024)

  Changed paths:
    M mlir/include/mlir/Transforms/Mem2Reg.h
    M mlir/lib/Transforms/Mem2Reg.cpp
    M mlir/test/Dialect/LLVMIR/mem2reg-intrinsics.mlir

  Log Message:
  -----------
  [MLIR][Mem2Reg] Replace pattern based approach with a one-shot pass

This commit changes MLIR's Mem2Reg implementation back from being
pattern based into a full pass. Using Mem2Reg as a pattern is
wastefull, as each application can invalidate the dominance info.
Applying changes in bulk allows for reuse of the same dominance info.

Unfortunately, this requires some test changes, due to the `IRBuilder`
not simplifying IR.



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