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Commit ef78e552 authored by Simon Pilgrim's avatar Simon Pilgrim
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[SelectionDAG] Fold insert_subvector(undef, extract_subvector(v, c), c) -> v in getNode 

This is already done in DAGCombiner::visitINSERT_SUBVECTOR, but this helps a number of shuffles across different vector widths recognise when they come from the same source.

llvm-svn: 363542
parent 9d81915f
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