Bob Wilson 4d59e1d666 Fix up some problems with getCopyToReg and getCopyFromReg nodes being
chained and "flagged" together.  I also made a few changes to handle the
chain and flag values more consistently.  I found these problems by
inspection so I'm not aware of anything that breaks because of them
(thus no testcase).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69977 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-24 17:00:36 +00:00
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