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8d77cc8c5f47f2dbab867441251f5df796b78a6e
llvm-6502/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
Dan Gohman cd9e155755 Fold (add x, shl(0 - y, n)) -> sub(x, shl(y, n)), to simplify some code 
that SCEVExpander can produce when running on behalf of LSR.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93949 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-19 23:30:49 +00:00

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