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Author SHA1 Message Date
Eugene Leviant ac407a7b4a [SCEV][LSR] Prevent using undefined value in binops 
On some occasions ReuseOrCreateCast may convert previously
expanded value to undefined. That value may be passed by
SCEVExpander as an argument to InsertBinop making IV chain
undefined.

Differential revision: https://reviews.llvm.org/D63928 

llvm-svn: 365009
 2019-07-03 09:36:32 +00:00