Update tests which broke from r218189

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@218191 91177308-0d34-0410-b5e6-96231b3b80d8
[x86] Add an AVX run to the 128-bit v2 tests, teach them to have
a generic SSE and AVX mode in addition to a specific AVX1 test path, and
flesh out the AVX tests.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@218192 91177308-0d34-0410-b5e6-96231b3b80d8
[x86] Teach the new vector shuffle lowering to use VPERMILPD for
single-input shuffles with doubles. This allows them to fold memory
operands into the shuffle, etc. This is just the analog to the v4f32
case in my prior commit.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@218193 91177308-0d34-0410-b5e6-96231b3b80d8