Alexey Bataev 8af4723c58 [SLP]Try to vectorize tiny trees with shuffled gathers.
If the first tree element is vectorize and the second is gather, it
still might be profitable to vectorize it if the gather node contains
less scalars to vectorize than the original tree node. It might be
profitable to use shuffles.

Differential Revision: https://reviews.llvm.org/D101397
2021-04-28 06:35:31 -07:00
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2021-02-17 16:01:32 -08:00
2020-11-06 11:12:10 +01:00