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Commit ede49053 authored by Simon Pilgrim's avatar Simon Pilgrim
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[TargetLowering] Refactor BuildSDIV in preparation for D50765. NFCI. 

Pull out magic factor calculators into a helper function, use 0/+1/-1 multiplication factor to (optionally) add/sub the numerator.

llvm-svn: 339898
parent b25e645e
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