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Author SHA1 Message Date
Jakob Stoklund Olesen
8eea48a43d Fix PR6300.
A virtual register can be used before it is defined in the same MBB if the MBB
is part of a loop. Teach the implicit-def pass about this case.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96279 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-15 22:03:29 +00:00