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Author SHA1 Message Date
Juneyoung Lee 278aa65cc4 [IR] Let IRBuilder's CreateVectorSplat/CreateShuffleVector use poison as placeholder 
This patch updates IRBuilder to create insertelement/shufflevector using poison as a placeholder.

Reviewed By: nikic

Differential Revision: https://reviews.llvm.org/D93793
 2020-12-30 04:21:04 +09:00
Anna Welker 23c9534515 [LV] Enable the LoopVectorizer to create pointer inductions 
This patch enables the LoopVectorizer to build a phi of pointer
type and provide the vector loads and stores with vector type
getelementptrs built from the pointer induction variable, which
produces much less instructions than the previous approach of
creating scalar getelementpointers and glue them together to a
vector.

Differential Revision: https://reviews.llvm.org/D81267
 2020-07-17 13:35:07 +01:00