[PATCH] D95139: [SVE][LoopVectorize] Add support for extracting the last lane of a scalable vector

[David Sherwood via Phabricator via llvm-commits]

david-arm updated this revision to Diff 319853.
david-arm added a comment.

- Following @sdesmalen's suggestion I've added an enum to VPIteration that describes how we should interpret the 'Lane' member variable. This means we can support offsets from the last lane up to the known minimum number of elements.


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D95139/new/

https://reviews.llvm.org/D95139

Files:
  llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
  llvm/lib/Transforms/Vectorize/VPlan.cpp
  llvm/lib/Transforms/Vectorize/VPlan.h
  llvm/test/Transforms/LoopVectorize/AArch64/neon-extract-last-veclane.ll
  llvm/test/Transforms/LoopVectorize/AArch64/sve-extract-last-veclane.ll

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