[PATCH] D97465: [LoopVectorize] Refine hasIrregularType predicate

Roman Lebedev via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Tue Mar 16 13:08:12 PDT 2021


lebedev.ri accepted this revision.
lebedev.ri added a comment.
This revision is now accepted and ready to land.

Seems good to me.



================
Comment at: llvm/lib/Transforms/Vectorize/LoopVectorize.cpp:380-381
+  // This is only true if there is no padding between the array elements.
   return DL.getTypeAllocSizeInBits(Ty) != DL.getTypeSizeInBits(Ty);
 }
 
----------------
I wonder why can't we still vectorize such cases,
by instead loading `<N x DL.getTypeAllocSizeInBits(Ty)>` vector and then truncating it?
(beware of endianness)


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D97465/new/

https://reviews.llvm.org/D97465



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