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Author SHA1 Message Date
Chen Zheng 8c5edf5023 [SCEV] don't query getSCEV() for incomplete phis 
querying getSCEV() for incomplete phis leads to wrong cache value in `ExprToIVMap`,
because incomplete phis may be simplified to same value before get SCEV expression.

Reviewed By: lebedev.ri, mkazantsev

Differential Revision: https://reviews.llvm.org/D77560
 2020-08-01 02:38:54 -04:00