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3 Commits

Author SHA1 Message Date
David Green
6e28c84a3a [ARM] Replace arm vendor with none. NFC 2020-04-22 18:19:35 +01:00
David Green
3d211b57a5 [ARM] Don't split trunc stores that can be better handled as VMOVN 
We deliberately split stores of the form
store(truncate(larger-than-legal-type)) into two stores, allowing each
store to perform part of the truncate for free.

There are times however where it makes more sense to use VMOVN to
de-interlace the results back into a single vector, and store that in
one go. This adds a check for that situation, not splitting the store if
it looks like a VMOVN can be more useful.

Differential Revision: https://reviews.llvm.org/D76511
 2020-03-24 08:48:52 +00:00
David Green
c9632e3871 [ARM] Extra VMOVN and VMULL tests. NFC 2020-03-23 16:18:49 +00:00