[PATCH] D36650: [X86] WIP support narrowing operations when only a subvector is demanded

Simon Pilgrim via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Sun Aug 13 06:23:55 PDT 2017

RKSimon added a comment.

> We also need to support matching horizontal binops from target shuffles in order to convert the final operation to HADD.

For reference: PR34110 and PR34111 suggests the x86 horizontal binop code needs work


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