[PATCH] D43198: [X86] Fix Topological NodeId Ordering violation in Load-Op-Store fusion.

[Nirav Dave via Phabricator via llvm-commits]

niravd updated this revision to Diff 135967.
niravd added a reviewer: jyknight.
niravd added a comment.

As verifying topological order is preserved is not practical, add EXPENSIVE_CHECK checking that pruning doesn't cause use to miss finding a predecessor.


Repository:
  rL LLVM

https://reviews.llvm.org/D43198

Files:
  llvm/include/llvm/CodeGen/SelectionDAGNodes.h
  llvm/lib/Target/X86/X86ISelDAGToDAG.cpp
  llvm/test/CodeGen/X86/pr36312.ll

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