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Author SHA1 Message Date
Dan Gohman
dac5dbadeb Fix reassociate to use a worklist instead of recursing when new 
reassociation opportunities are exposed. This fixes a bug where
the nested reassociation expects to be the IR to be consistent,
but it isn't, because the outer reassociation has disconnected
some of the operands.  rdar://9167457


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129324 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-04-12 00:11:56 +00:00