Chandler Carruth 76908cba94 [unroll] Use a small set to de-duplicate operands prior to putting them
into the worklist. This avoids allocating lots of worklist memory for
them when there are large numbers of repeated operands.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229052 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-13 03:48:38 +00:00
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2015-02-12 16:30:00 +00:00
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