commit aef38357514a6596b2aa3a9ec19dd04781f4ae1e
author Simon Pilgrim <llvm-dev@redking.me.uk> Wed Jan 16 16:01:42 2019 +0000
committer Simon Pilgrim <llvm-dev@redking.me.uk> Wed Jan 16 16:01:42 2019 +0000
tree 20b06362e1f59924b71da239402c5c63a7931e13
parent 73f9f91f2ab51d7e17204041c4fe7c9c8167c4f1

[X86] Add combineX86ShufflesRecursively helper. NFCI.

combineX86ShufflesRecursively is pretty cumbersome with a lot of arguments that only matter later in recursion.

This commit adds a wrapper version that only takes the initial root Op to simplify calls that don't need to worry about these.

An early, cleanup step towards merging combineX86ShufflesRecursively into SimplifyDemandedVectorElts/SimplifyDemandedBits.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@351352 91177308-0d34-0410-b5e6-96231b3b80d8