[PATCH] D16239: Fix PR25526 by adding back limited cmpxchg pseudo-Insts

[Tim Northover via llvm-commits]

t.p.northover updated this revision to Diff 46829.
t.p.northover added a comment.

Think I've fixed most of the issues people mentioned.


http://reviews.llvm.org/D16239

Files:
  lib/Target/AArch64/AArch64ExpandPseudoInsts.cpp
  lib/Target/AArch64/AArch64ISelDAGToDAG.cpp
  lib/Target/AArch64/AArch64ISelLowering.cpp
  lib/Target/AArch64/AArch64InstrAtomics.td
  test/CodeGen/AArch64/cmpxchg-O0.ll

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