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Author SHA1 Message Date
Alexey Bataev cc30fbf242 [SLP]Introduce isUndefVector function to check for undef vectors. 
Undefined vector might be not only the UndefValue, but also it can be
a constant vector with undef ot poison elements, need to check for this
kind of undef too.

Differential Revision: https://reviews.llvm.org/D114873
 2021-12-01 07:46:10 -08:00
Alexey Bataev e28174cf56 [SLP][NFC]Add a test for inserting into constant undef vector, NFC. 2021-12-01 06:21:05 -08:00