Bob Wilson a0c6057061 Rewrite part of the SSAUpdater to be more careful about inserting redundant ... PHIs. The previous algorithm was unable to reliably detect when existing PHIs in a cycle can be reused. I'm still working on reducing a testcase. Radar 7711900. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100047 91177308-0d34-0410-b5e6-96231b3b80d8		2010-03-31 20:51:00 +00:00
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llvm	Rewrite part of the SSAUpdater to be more careful about inserting redundant	2010-03-31 20:51:00 +00:00
llvm-c	Whoops this already existed.	2010-03-11 23:21:19 +00:00