[PATCH] D35381: [DAGCombiner] Recognise vector rotations with non-splat constants

[Simon Pilgrim via Phabricator via llvm-commits]

RKSimon added a comment.

There are a number of existing tests in files that should have been improved by this:

- llvm\test\CodeGen\X86\combine-rotates.ll
- llvm\test\CodeGen\X86\vector-rotate-128.ll
- llvm\test\CodeGen\X86\vector-rotate-256.ll


https://reviews.llvm.org/D35381