[PATCH] D50936: [DAGCombiner] Allow divide by constant optimization on opaque constants.

[Craig Topper via Phabricator via llvm-commits]

craig.topper created this revision.
craig.topper added reviewers: RKSimon, chandlerc, spatel.

I believe this restores the behavior we had before r339147.

Fixes PR38622.


Repository:
  rL LLVM

https://reviews.llvm.org/D50936

Files:
  lib/CodeGen/SelectionDAG/DAGCombiner.cpp
  test/CodeGen/X86/divide-by-constant.ll

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