[llvm] r183133 - R600/SI: Handle nodes with glue results correctly SITargetLowering::foldOperands()

[Sean Silva]

Test?

Also, that loop is confusing. It would probably be better to factor it out
into a predicate function <
http://llvm.org/docs/CodingStandards.html#turn-predicate-loops-into-predicate-functions
>.

-- Sean Silva
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