[all-commits] [llvm/llvm-project] 5acddf: [ARM] Lower non-extended small gathers via truncat...

[David Green via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 5acddf5b0962f85d937679e057c3adcc561604e6
      https://github.com/llvm/llvm-project/commit/5acddf5b0962f85d937679e057c3adcc561604e6
  Author: David Green <david.green at arm.com>
  Date:   2021-07-17 (Sat, 17 Jul 2021)

  Changed paths:
    M llvm/lib/Target/ARM/MVEGatherScatterLowering.cpp
    M llvm/test/CodeGen/Thumb2/mve-gather-ind8-unscaled.ll
    M llvm/test/CodeGen/Thumb2/mve-gather-ptrs.ll

  Log Message:
  -----------
  [ARM] Lower non-extended small gathers via truncated gathers.

Corollary to 1113e06821e6baffc84b8caf96a28bf62e6d28dc this allows us to
match gather that dont produce a full vector width results. They use an
extended gather which is truncated back to the original type.