[all-commits] [llvm/llvm-project] 0bc983: [LICM] Use DomTreeUpdater version of SplitBlockPre...

[Joshua Cao via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 0bc98349c84130babb6a4acf2951a0ccc84f574f
      https://github.com/llvm/llvm-project/commit/0bc98349c84130babb6a4acf2951a0ccc84f574f
  Author: Joshua Cao <cao.joshua at yahoo.com>
  Date:   2024-09-29 (Sun, 29 Sep 2024)

  Changed paths:
    M llvm/include/llvm/Transforms/Utils/LoopUtils.h
    M llvm/lib/Transforms/Scalar/LICM.cpp
    M llvm/lib/Transforms/Utils/LoopUtils.cpp

  Log Message:
  -----------
  [LICM] Use DomTreeUpdater version of SplitBlockPredecessors, nfc (#107190)

The DominatorTree version is marked for deprecation, so we use the
DomTreeUpdater version. We also update sinkRegion() to iterate over
basic blocks instead of DomTreeNodes. The loop body calls
SplitBlockPredecessors. The DTU version calls
DomTreeUpdater::apply_updates(), which may call DominatorTree::reset().
This invalidates the worklist of DomTreeNodes to iterate over.



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