[PATCH] D36528: [X86] Keep dependencies when constructing loads in combineStore

[Nirav Dave via Phabricator via llvm-commits]

niravd created this revision.

Preserve chain dependecies between old and new loads constructed to
prevent loads from reordering below later stores.

Fixes PR34088.


https://reviews.llvm.org/D36528

Files:
  include/llvm/CodeGen/SelectionDAG.h
  lib/CodeGen/SelectionDAG/SelectionDAG.cpp
  lib/Target/X86/X86ISelLowering.cpp
  test/CodeGen/X86/pr34088.ll

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