[PATCH] D12325: Improve ISel using across lane addition reduction

[Matthew Simpson via llvm-commits]

mssimpso added a comment.

Jun/James,

While this patch is focused on the add reductions, aren't there other opportunities here for optimizing the reduce step of the other reduction types? For example, couldn't we similarly use the sminv/uminv and smaxv/umaxv instructions for min/max reductions? We currently don't do this. Min/max reductions are important for 456.hmmer.


http://reviews.llvm.org/D12325