[PATCH] D77635: [LV] Vectorize with FoldTail when Primary Induction is absent

[Sjoerd Meijer via Phabricator via llvm-commits]

SjoerdMeijer accepted this revision.
SjoerdMeijer added a comment.

Thanks for the patch, and I think CanonicalIV is an improvement.

This LGTM too.



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Comment at: llvm/test/Transforms/LoopVectorize/X86/small-size.ll:171
 
-; N is unknown, we need a tail. Can't vectorize because loop has no primary
-; induction.
+; Loop has no primary induction as it's integer IV has step -1 starting at
+; unknown N, but can still be vectorized.
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typo: it's -> its


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https://reviews.llvm.org/D77635