[X86][SSE] Support combining AND(EXTRACT(SHUF(X)), C) -> EXTRACT(SHUF(X))

If we are applying a byte mask to a value extracted from a shuffle, see if we can combine the mask into shuffle.

Fixes the last issue with PR22415

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@315807 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed