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Author SHA1 Message Date
Jakob Stoklund Olesen
1a96c91431 Clear kill flags before propagating a copy. 
The live range of the source register may be extended when a redundant
copy is eliminated. Make sure any kill flags between the two copies are
cleared.

This fixes PR11765.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149069 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-01-26 17:52:15 +00:00