[all-commits] [llvm/llvm-project] 8f77d3: [DAGCombiner] cache negative result from getMergeS...

[Princeton Ferro via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 8f77d37f256809766fd83a09c6d144b785e9165a
      https://github.com/llvm/llvm-project/commit/8f77d37f256809766fd83a09c6d144b785e9165a
  Author: Princeton Ferro <pferro at nvidia.com>
  Date:   2024-09-04 (Wed, 04 Sep 2024)

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

  Log Message:
  -----------
  [DAGCombiner] cache negative result from getMergeStoreCandidates() (#106949)

Cache negative search result from getStoreMergeCandidates() so that
mergeConsecutiveStores() does not iterate quadratically over a
potentially long sequence of unmergeable stores.



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