[X86] Allow vpclmulqdq instructions to be commuted during isel to allow load folding.

The commuting patterns for the AVX version actually still had priority over the new patterns.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@318800 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed