[PATCH] D57059: [SLP] Initial support for the vectorization of the non-power-of-2 vectors.

[Alexey Bataev via Phabricator via llvm-commits]

ABataev added a comment.

In D57059#2578770 <https://reviews.llvm.org/D57059#2578770>, @anton-afanasyev wrote:

>> Actually, it is not reducing. This is how test-suite python script works. So, here lhs - number of instructions after this patch, rhs - before. And the less relative number, the more vector instructions we actually generate.
>
> Oh, I see. There are still several reducing cases though.

Actually, no. I compared the resulting IR files for these cases - they are absolutely the same as before. It is just we generating fewer ExtractElement/InsertElement instructions and directly emit Shuffle instructions in some cases. That's why it seems it generates fewer vector instructions though it is not.


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