[PATCH] D31625: [SDAG] Fix CombineTo ordering in visitZERO_EXTEND and visitSIGN_EXTEND

[Nirav Dave via Phabricator via llvm-commits]

niravd updated this revision to Diff 94065.
niravd edited the summary of this revision.
niravd added a comment.

Add missing test cases. This solves most of the skx SelectionDAG errors we've been seeing under O0.


https://reviews.llvm.org/D31625

Files:
  lib/CodeGen/SelectionDAG/DAGCombiner.cpp
  test/CodeGen/X86/pr32284.ll

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