[PATCH] [Target/X86] Fix crash in assignTopologicalOrder()

[Benjamin Kramer]

This isn't the right fix. The resulting code from the test case now looks like this

  movb	a(%rip), %cl
  andb	$127, %cl
  setne	%al
  testb	%cl, %cl
  setne	b(%rip)

There should only be one testb, no andb. I think we just have to remove the dead node after replacing all nodes, I'll commit a fix for that.


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http://reviews.llvm.org/D9642

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