[PATCH] D152258: [LV] Add mask support for vectorizing interleaved groups

[Graham Hunter via Phabricator via llvm-commits]

huntergr added a comment.

I think it would be worthwhile to have a test covering conditional execution inside the original source loop as well as the active lane mask for tail folding. See `llvm/test/Transforms/LoopVectorize/interleaved-accesses-masked-group.ll` for examples.



================
Comment at: llvm/lib/Target/AArch64/AArch64TargetTransformInfo.cpp:2824-2825
+  // VF.
+  if (!VecTy->isScalableTy() && (UseMaskForCond || UseMaskForGaps))
+    return InstructionCost::getInvalid();
+
----------------
We could use SVE masking for fixed length as well, but that can be done at a later date if you want.


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https://reviews.llvm.org/D152258