[all-commits] [llvm/llvm-project] 00d383: [DAGCombiner] Limit steps in shouldCombineToPostIn...

[Jonathan Cohen via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 00d383ee9d6fe66799bf9b242b59753d175d51cb
      https://github.com/llvm/llvm-project/commit/00d383ee9d6fe66799bf9b242b59753d175d51cb
  Author: Jonathan Cohen <jcohen22 at apple.com>
  Date:   2024-11-21 (Thu, 21 Nov 2024)

  Changed paths:
    M llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp

  Log Message:
  -----------
  [DAGCombiner] Limit steps in shouldCombineToPostInc (#116030)

Currently the function will walk the entire DAG to find other candidates
to perform a post-inc store. This leads to very long compilation times
on large functions. Added a MaxSteps limit to avoid this, which is also
aligned to how hasPredecessorHelper is used elsewhere in the code.



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