[PATCH] D19140: LegalizeDAG: Move unaligned load/store expansion to TLI

[Matt Arsenault via llvm-commits]

arsenm created this revision.
arsenm added reviewers: tstellarAMD, resistor.
arsenm added a subscriber: llvm-commits.
Herald added a subscriber: arsenm.

When custom lowered, this is not called if the store is custom
lowered. Move it to be a utility function so targets can
easily expand unaligned accesses when custom lowering.

http://reviews.llvm.org/D19140

Files:
  lib/Target/AMDGPU/SIISelLowering.cpp
  test/CodeGen/AMDGPU/unaligned-load-store.ll

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