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2015-02-22T15:51:49.755948Z
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Pull in r230058 from upstream llvm trunk (by Benjamin Kramer):

  LoopRotate: When reconstructing loop simplify form don't split edges
  from indirectbrs.

  Yet another chapter in the endless story. While this looks like we
  leave the loop in a non-canonical state this replicates the logic in
  LoopSimplify so it doesn't diverge from the canonical form in any way.

  http://llvm.org/PR21968

This fixes a "Cannot split critical edge from IndirectBrInst" assertion
failure when building the devel/radare2 port.

PR:		195480, 196987
MFC after:	3 days

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